How to shred polystyrene foam at home

Crushing foam may be necessary both to obtain foam chips for your own needs, and for the industrial production of material for sale. After all, crushed material is more expensive than whole material, which, moreover, is often thrown away after being used as protective packaging or insulation. The advantages of the crushing option are minimal investment and ease of assembly of the device. The main thing for this is to know how to make a crusher that will provide a productivity of 200 or more liters per hour. Also read: “Insulating concrete with polystyrene foam.”

The benefits of crushed polystyrene foam

You can stuff upholstered furniture with crushed polystyrene foam.

Polystyrene foam, which is an excellent heat insulator and is produced using the foaming process, is used in crushed form for the following work:

roof construction;
insulation of pipes for various purposes;
leveling the cement surface;
production of polystyrene concrete blocks;
increasing the sound and heat insulation qualities of some building materials.

Crushed polystyrene foam is often used as a filler for frameless types of furniture - sofas, armchairs. You can find it inside toys and even pillows.

To make a roof vapor barrier with your own hands, you need to follow the installation technology correctly.

We talked about how to make a vapor barrier for walls in one of the previous articles.

If you need to get enough of this material at home, a foam crusher can easily be made yourself. To create it, regardless of the chosen option, you will need an electric motor with a low rotation speed, a housing and a container for collecting foam chips.

Types of foam shredders

You can choose the type of crusher for foam plastic based on the amount of material. If the main task is to obtain 1-2 small bags of crumbs, you may not need to assemble a special unit at all to complete it. It is enough to use a metal brush, which is used to rub sheets of foam insulation, or a homemade “grater” from a box with cells. This method will be ineffective, but will avoid costs.

It is better to immediately purchase high-quality material for roof vapor barrier than to redo all the work later.

The method for installing a vapor barrier on the floor is somewhat different from installing it on the roof.

If the amount of material is large enough and you need not 1 bag, but 10, 20 or more, you should decide how to make a crusher:

using a mesh (production 0.2–0.3 cubic m/h). The most profitable and quickly implemented method;
using an industrial crushing plant as an example (at least 1 cubic meter per hour). The equipment will be more expensive (although more profitable compared to buying a ready-made version) and will require more time to manufacture.

Mesh crusher

The simplest way to make a foam crusher with your own hands is to create a small grater machine, the design of which consists of:

a round mesh element in the form of a disk;
the shaft on which the mesh is installed;
bases for mounting the motor and shaft. The engine can be taken, for example, from a concrete mixer, additionally installing a gearbox to reduce the speed (too fast rotation will lead to too small particles).

The foam is fed onto a rotating mesh, the size of the holes of which determines the diameter of the resulting granules. Feeding is carried out manually and requires preparation of the material - cutting it to the width of the disk. The advantage of this option is its low cost. The disadvantage is the difficulty of grinding all the pieces and a large amount of dust in the air. The first problem is solved by manual grinding (boxes and brushes), the second by using eye and respiratory protection.

Classic crusher

To increase the volume of production of foam granules, it is worth using the design of an industrial foam crusher, which you can purchase - but it is more profitable to make it yourself.

Industrial crusher knives.

In the production of foam chips, the material enters the shredder body towards two knives mounted on the drum and on the shaft. Getting between the cutting edges, the foam is crushed and produces granules of the desired size.

When manufactured independently, the shredder is assembled from a welded metal box, inside of which two shafts with long teeth rotate. They can be made, for example, by screwing ordinary screws into a wooden roller or by installing and securing rods in drilled holes.

You can earn good money in the production of foam chips with minimal investment.

The same low-power and low-speed engine is selected as the rotating device as for the crusher-grater. The result is particles with a diameter of several millimeters, which, if necessary, are refined manually. The principle of operation of such crushers is illustrated by photos of already manufactured ones.

Safety sensors and their meaning

A geyser can be dangerous, because it is connected simultaneously to water and gas mains, each of which individually can pose a threat.

If there are problems with the gas or water supply, safety sensors turn off the operation of the column, and special valves will shut off the water or gas supply.

Typically, geysers can withstand voltages of up to 10-12 bar, which is 20-50 times higher than normal pressure in pipes. Such sharp jumps are possible with so-called hydraulic shocks.

But if the pressure is lower than 0.1-0.2 bar, then the column will not be able to work. You need to carefully study the instructions and specifications before purchasing to understand whether the dispenser is optimized for low water pressure in pipes in the CIS countries and whether it will work properly. And vice versa - will it withstand sudden changes in pressure, which, alas, is also not uncommon in our conditions.

Ignition circuit for a burner powered by an electric spark. Locations of the main safety sensors for a household geyser

In general, a modern geyser contains many safety sensors. All of them, in case of breakdown, can be replaced.

More details about the purpose and location of the sensors are in the table below.

Sensor name	Location and purpose of the sensor
Chimney draft sensor	Located in the upper part of the device, connecting the column with the chimney. Turns off the column when there is no draft in the chimney
Gas valve	Located in the gas supply pipe. Turns off the column when gas pressure drops
Ionization sensor	Located in the device camera. Turns off the device if the flame goes out while the gas is on.
Flame sensor	Located in the device camera. Shuts off the gas if the flame does not appear after ignition
Relief valve	Located on the water supply pipe. Turns off the water when the pressure in the pipeline is high
Flow sensor	Will turn off the column if water stops flowing from the tap or if the water supply is turned off
temperature sensor	Located on the heat exchanger pipes. It will block the burner operation if the water is significantly overheated to avoid damage and burns (mainly triggered at +85ºС and above)
Low pressure sensor	Will not allow the column to turn on when the water pressure in the pipes is low.

conclusions

Properly configured production of foam chips can bring a certain profit. The main thing is to provide a sufficient amount of raw materials and resolve the packaging issue. The granules are distributed into bags and bags and stored until used or sold. At the same time, the cost of servicing a ready-made crusher is relatively small - the main costs fall on paying for electricity (when connected to the network) or purchasing fuel (when using diesel engines).

The benefits of crushed polystyrene foam

You can stuff upholstered furniture with crushed polystyrene foam.

Polystyrene foam, which is an excellent heat insulator and is produced using the foaming process, is used in crushed form for the following work:

roof construction;
insulation of pipes for various purposes;
leveling the cement surface;
production of polystyrene concrete blocks;
increasing the sound and heat insulation qualities of some building materials.

Crushed polystyrene foam is often used as a filler for frameless types of furniture - sofas, armchairs. You can find it inside toys and even pillows.

To make a roof vapor barrier with your own hands, you need to follow the installation technology correctly.

We talked about how to make a vapor barrier for walls in one of the previous articles.

Types of foam shredders

It is better to immediately purchase high-quality material for roof vapor barrier than to redo all the work later.

The method for installing a vapor barrier on the floor is somewhat different from installing it on the roof.

If the amount of material is large enough and you need not 1 bag, but 10, 20 or more, you should decide how to make a crusher:

using a mesh (production 0.2–0.3 cubic m/h). The most profitable and quickly implemented method;
using an industrial crushing plant as an example (at least 1 cubic meter per hour). The equipment will be more expensive (although more profitable compared to buying a ready-made version) and will require more time to manufacture.

Mesh crusher

The simplest way to make a foam crusher with your own hands is to create a small grater machine, the design of which consists of:

a round mesh element in the form of a disk;
the shaft on which the mesh is installed;
bases for mounting the motor and shaft. The engine can be taken, for example, from a concrete mixer, additionally installing a gearbox to reduce the speed (too fast rotation will lead to too small particles).

Classic crusher

To increase the volume of production of foam granules, it is worth using the design of an industrial foam crusher, which you can purchase - but it is more profitable to make it yourself.

Industrial crusher knives.

You can earn good money in the production of foam chips with minimal investment.

Recommendations for using the device

In order not to encounter a situation where urgent repair of the device is necessary, or it completely fails, you must comply with all operating requirements.

The generated water pressure must be within the characteristics indicated on the technical data sheet of the device. If during operation the pump produces increased or decreased pressure, then during such operation rapid wear of the product may occur, which is bad in itself.

During the period when the heating system will not be used, it will be necessary to turn it on once a month for circulation for at least 15 minutes. Thanks to such actions, blocking of moving mechanisms and their oxidation will be prevented.

You also need:

Make sure that the temperature in the system does not exceed 65 degrees;
Inspect the device regularly and check for correct operation monthly.

Such manipulations will allow timely identification of malfunctions at the initial stage and thereby promptly take appropriate measures.

Before you start using the heating pump, you should watch the training video

Step-by-step verification algorithm:

Switching on the hydraulic machine to operating mode;
Checking noise and vibration levels;
Controlling how the engine heats up;
Checking how the pump pumps, makes noise or whistles;
Mandatory grounding control.

In addition, you need to pay attention to leaks from the water boiler. Perhaps during disassembly you will find that the motor spins a lot, crackles and turns on too often

Additionally, you need to inspect the terminal box and check the fixation of the wire in it.

conclusions

How does the crimping process work?

Preparing the system before pressure testing. If the system is autonomous, then the heat generator is turned off first. If not, then taps are used to close off the area where inspection is required. The coolant must be drained.
The system circuit is filled with water having a temperature of no higher than 45 C. The air is gradually released.
The compressor is connected and air begins to flow into the pipes.
At the beginning of the procedure, the pressure is brought to the working level and the area is visually inspected for violations. Then the pressure is gradually increased to the test level - this is maintained for at least 10 minutes.
The area or the entire system is inspected for leaks at the connections. It is mandatory to visually inspect fittings, radiators and the entire length of pipe walls for fistulas. If deviations are detected, all defects and shifts are recorded. The operation of taps and valves is checked.
Using pressure gauge readings, the drop in pressure level is determined. If it has not decreased, the system is in normal operating condition.
Based on the results of the inspection, a report is drawn up.

Recycled foam in a country house

Country construction is also not complete without this material. Fractions of different sizes are used to fill various irregularities or depressions in the area where construction is taking place. Of course, it cannot be used to level the road, but small uneven areas can be filled. It is convenient to fill holes, holes, and cavities with expanded polystyrene. After all, for many years, without changing, it remains in the place where it was located. It easily absorbs moisture and also releases it easily. Therefore, containers filled with foam plastic are less susceptible to corrosion.

The construction business has also found use for recycled polystyrene foam. It is from this that lightweight bricks are made, which are called perforated bricks because of their texture. At the suggestion of scientists, lightweight concrete appeared, which in its strength and durability is not inferior to the usual composition.

Expanded polystyrene also attracted the attention of designers. If we talk about processing at home, then here craftsmen are given wide scope for flight of imagination

Polystyrene foam melts well and quite quickly, so it is used to create designer items such as original flower pots or flowerpots. Using a special mold, hand-made craftsmen make beautiful, unique garden figurines, coasters for glasses, or even flower pots.

Connecting the power supply

There are 2 options: purchasing a ready-made power supply for geysers in a store or self-assembling from a charger with similar characteristics.

Connecting the magazine unit

The advantage of this method is that you do not need to cut off the end with the plug and solder special connectors instead. The pulse unit is designed specifically for these purposes and has everything necessary for quick connection. The wiring already has pole markings. For example, in the Robiton IR3-1000S model, the striped wire is connected to the positive output

Healthy! The cost of a 3V power supply for a geyser varies from 250 to 350 rubles.

Factory power supply for instantaneous gas water heaters Source remotvet.ru

Why recycle?

The answer to this question is simple. The material accumulated over the years, which once served as packaging, trays, and decorative items, has nowhere to go. It cannot be burned as unnecessary wood products. This is due to the release of large amounts of toxic gases. There is nowhere to throw it away, and there is nowhere to recycle polystyrene foam.

The only sure way to get rid of such waste is to recycle polystyrene foam at home. In order to complete all work correctly and effectively, you must:

Determine the purpose for which the processing is carried out.
Choose a place where it will be convenient to process. This material not only flies, it is also perfectly electrified. Therefore, you may need a special room in which processing can be done.
Choose a method of influencing the available foam waste.

Of course, first of all, you should think about the fact that this material can be useful as packaging material, but there are certain difficulties associated with its storage. In this case, it is crushed, but for this you need a foam crusher, but what to do next? Here everyone makes their own decision.

Methods of processing and use:

Foam crusher. It can be crushed using a special crusher, but if one is not available, this is done manually. It is important to think through the process, because small particles of polystyrene foam are too light in weight and easily scatter in different directions. Therefore, when chopping polystyrene foam manually, it is placed in a bag or other container.
Raw materials to be disposed of take up quite a lot of space and space. One of the most important tasks is to reduce its size. For this purpose, citrus zest concentrate is used (its second name is “lemon”). Under the influence of this substance, polystyrene foam not only becomes smaller, it turns into a liquid substance.
Remelting can only be done by heating.

You can use crushed raw materials in your garden or in a country house. It is added to the soil in flower beds and mixed with soil in beds for growing greenery. This is due to the fact that granules help absorb and retain moisture in the soil, even in severe drought, preventing the soil from cracking. Both water and air penetrate the soil more easily, providing nutrition and ventilation to plant roots. But the properties of this material are such that there is no rotting in these soils.

Choosing the right adapter

The manufacturing process is simple, the only thing you should pay close attention to is the parameters of the power supply. The main characteristics of the adapter that interest us are indicated under the inscription “Output”. Naturally, they can have different meanings in different devices. In this situation, they must meet the following indicators:

Input power – 220V.
Output power – 3V.
Power 500 mA.

Healthy! The output voltage of most mobile phone chargers is 5V. To lower it to the desired value, use the adjustable stabilizer LM 2596.

Determining the voltage of the power supply Source img.mysku-st.ru
Another situation concerns the moment of determining polarity. Finding the “plus” and “minus” on the outgoing wires of the charger is not difficult. To do this, you need to connect the device to a 220V network, and alternately check the contacts (internal and external) with an indicator. The one that, when touched, will cause the instrument’s light to light up and be “positive.”

The principle of operation of a do-it-yourself foam crusher

This material is not disposed of like others, as it becomes harmful to nature and humans. When interacting with water, foam does not deteriorate or decompose, and it is prohibited to burn it due to the release of toxic gases. But it can be processed and implemented. This is the safest method of disposal. Just first you need to think everything through, calculate in detail and make a foam shredder with your own hands. Its waste bypasses all stages of crushing, and after that the crumbs are of fairly good quality.

Crushed foam is often used:

in roof construction;
as a bedding with shock-absorbing properties;
when added to cement to level the surface;
when insulating various types of pipes;
when added to cement for sound and heat insulation;
as a filler for upholstered furniture without a frame;
in the production of polystyrene concrete blocks.

Crusher assembly diagram.

A foam shredder is quite easy to make if you want to. The main thing is that scrap foam is available at all times. In addition, a homemade foam crusher costs much less than one purchased in a store. To do this, you must have an electric motor with a low-speed engine so that the foam is crushed into individual balls.

In industrial production, it enters the crusher towards 2 knives, which are mounted on the drum wall and on the shaft. When rotating, the shaft passes through the axis of the steel drum. The material falls between the knives and is cut into separate parts. The foam particles fall onto a mesh with air for further sorting. From there, large parts go back under the knife.

Based on a production crusher, you can make your own shredder. But this structure is difficult to assemble and becomes a source of polystyrene dust. In addition, the resulting particles are about 2 cm in diameter. You can also make a simple crusher. It is performed according to the scheme of a simple mechanical grater.

Return to contents

When is a performance check needed?

After another long period of inactivity , the unit needs to be checked; if it is delayed, there is a risk of not only losing heating, but also seriously damaging the equipment.

I installed heating in a small cottage with an area of 65 sq.m. two-pipe system, the source is Zhukovsky 17.4. The system is closed, the pump was supplied by Wilo star RS 302. The heating has been working for 2 years, I adjusted the radiators, but the latter do not warm up at all, and recently the noise in the first radiator along the route disappeared (it was noisy because the valve was pressed) and only the top of all radiators is heated. At first I thought there was air in the system and tried to get it out, but to no avail. Maybe someone knows what's wrong. If you know, tell me what’s wrong and how to deal with this problem.

The benefits of crushed polystyrene foam

You can stuff upholstered furniture with crushed polystyrene foam.

Polystyrene foam, which is an excellent heat insulator and is produced using the foaming process, is used in crushed form for the following work:

roof construction;
insulation of pipes for various purposes;
leveling the cement surface;
production of polystyrene concrete blocks;
increasing the sound and heat insulation qualities of some building materials.

Crushed polystyrene foam is often used as a filler for frameless types of furniture - sofas, armchairs. You can find it inside toys and even pillows.

To make a roof vapor barrier with your own hands, you need to follow the installation technology correctly.

We talked about this in one of the previous articles.

Of course, recycle it. To do this, first of all you need to buy a crusher for foam plastic.

Polystyrene foam is a unique material that can be used in a wide variety of ways. Moreover, it is not even necessary to build a factory or even organize a separate workshop for processing this material - just buy a regular crusher for foam plastic! And then... from crushed polystyrene foam you can make various containers, building materials, you can add it to the soil to improve its structure, fill various depressions and simply burn (the number of calories released when burning polystyrene foam is the same as when burning gasoline).

Buying a high-quality crusher for foam plastic is a profitable solution. Foam shredders are designed specifically for processing lightweight materials. Maintenance and repair work are inexpensive - replacement of parts is rarely required, in addition, foam crushers consume quite little electricity.

From us you can buy a high-quality foam crusher at competitive prices. We offer only high-quality equipment! Call, ask - and buy! It's profitable!

We suggest you buy equipment such as a foam plastic waste crusher , the advantages of which include the use of lightweight materials that cannot be processed using other equipment. Equipment for processing foam plastic is equipped with knives that have double-sided sharpening, and the crumbs come out thanks to centrifugal forces.

The foam plastic waste crusher is a universal equipment, since it can compress waste such as foam rubber, synthetic padding, etc. The motor in the designs of our crushers is located outside the frame. This design reduces the shock load on the engine. We always have equipment for processing polystyrene foam in stock.

We deliver throughout Russia. The warranty service for the machines is 1 year. Our clients can take advantage of a flexible system of discounts! Also read interesting and useful articles Press machine here and Foam shredder here.

Pump design elements

The basis of any device is its design. The circulation pump is not a very complicated device. It consists of several elements:

frame. It is a cylindrical product, for the manufacture of which brass, bronze, stainless steel or cast iron can be used. Any of these metals perfectly resists corrosive processes, which is extremely important given the proximity of the liquid to the device. In addition, the durability of these materials is also excellent. Cast iron is especially respected in terms of longevity - it can last for more than half a century. But its problem lies in its instability to temperature changes. In principle, given the autonomy of the heating system of a private house, one can hope for their absence, since the operating mode is controlled by the owners of the home. But force majeure still happens, and they can lead to cracking of cast iron. The other metals listed above do not have this problem. Of course, their cost is a little higher, but you don’t have to worry about the sudden appearance of cracks on the pump body,
electric motor with rotor. It is located inside a cylindrical body and is, in fact, the heart of the device. Engine power varies between models. In general, it is the main criterion for selecting a circulation pump. The power rating of the device must correspond to the needs of the specific heating system in which the device will be installed. Otherwise, it may not cope with the responsibilities assigned to it. Speaking about the rotor, it should be noted that it can be “dry” or “wet”. The difference lies in its location. The “dry” rotor is placed in a separate pump unit, where it is reliably protected from direct exposure to liquid. “Wet”, on the contrary, is placed directly into the coolant. When choosing a specific device, it is important to know that “dry” varieties have much higher performance, their efficiency is about a third higher than that of “wet” ones. But they have a very important drawback - high noise levels. The hum produced during the operation of such a rotor can cause significant inconvenience to people even during the daytime. What can we say about the night, when sounds travel much better. In general, it is not recommended to place such a device near living rooms, since the discomfort of people will be very great. Circulation pumps with a dry rotor can be installed in a separate boiler room, which is located away from the bedrooms. If it is not possible to equip such a room, or the dimensions of the house do not allow a serious separation between the residential and non-residential parts of the building, then it is better to install a pump with a “wet” rotor in the system. It will consume more resources due to lower efficiency, but it will not get on your nerves with constant loud noise,
impeller with blades. It is due to the latter that the coolant moves. The wheel, located on the rotor and made of durable stainless materials, begins to rotate when the electric motor is turned on. In this case, the blades scatter the liquid along the walls of the cylinder, from where it then goes into the pipeline under the influence of centrifugal force. At the same time, the pressure level sharply decreases, resulting in the flow of a new portion of liquid.

As you can see, both the design of the circulation pump and the general principle of its operation are not particularly difficult to understand. It's quite simple. Thanks to this, many types of work with this equipment, such as maintenance and repair, can be carried out even without any experience.

AMD-600DU for foam crushing

Model with improved engine placement. In order to reduce shock loads, it is placed on the frame. Additionally, a belt drive mechanism is involved. It has a productivity of 80-120 kg/h, due to the engine power (11 kW) and rotor speed (1500 rpm). The equipment has optimal dimensions and weighs 250 kg. Reliable when processing polystyrene foam. Suitable for production of building materials, packaging and sorting departments of household appliances, shops, warehouses.

Denisov Denis Anatolievich

Our crushers meet European quality standards, comply with current GOSTs, and have a long service life. AMD Plast is your faithful friend and responsible supplier. An impeccable reputation and rich experience, excellent service and many years of experience in the Russian and international markets make us the most suitable partner. Still have questions? Call!

About the choice of equipment and the rules for its independent calculation

The key indicator that determines the efficiency of the circulation pump is its power. For a household heating system, there is no need to try to purchase the highest-power installation. It will only make a loud noise and waste electricity.

Mounted circulation pump

You need to correctly calculate the power of the unit based on the following data:

hot water pressure indicator;
pipe section;
productivity and throughput of the heating boiler;
coolant temperature.

Hot water consumption is determined simply. It is equal to the power indicator of the heating unit. If, for example, you have a 20 kW gas boiler, no more than 20 liters of water will be consumed per hour. The pressure of the circulation unit for the heating system for every 10 m of pipes is about 50 cm. The longer the pipeline, the more powerful the pump you need to purchase

Here you should immediately pay attention to the thickness of the pipe products. The resistance to water movement in the system will be stronger if you install small cross-section pipes

In pipelines with a diameter of half an inch, the coolant flow rate is 5.7 liters per minute at the generally accepted (1.5 m/s) speed of water movement, with a diameter of 1 inch - 30 liters. But for pipes with a cross-section of 2 inches, the flow rate will already be at the level of 170 liters. Always select the diameter of the pipes in such a way that you do not have to overpay extra money for energy resources.

The flow rate of the pump itself is determined by the following ratio: N/t2-t1. In this formula, t1 refers to the temperature of the water in the return pipes (usually it is 65–70 °C), and t2 is the temperature provided by the heating unit (at least 90 °C). And the letter N denotes the boiler power (this value is in the equipment passport). The pump pressure is set according to the standards accepted in our country and Europe. It is believed that 1 kW of power of a circulation unit is quite enough for high-quality heating of 1 square meter of a private home.

To make a shredder with your own hands, you need

Shaft crusher diagram.

round mesh disc;
drive shaft for securing the disk;
the base where the drive shaft will be attached;
guide plane for feeding foam sheets.

The shredder design is:

The grater is directly attached to the shaft and rotates simultaneously with it. The shaft is driven by any engine through a gearbox, which reduces the number of shaft revolutions.
The pieces of foam plastic are fed through a guide pipe onto the grater.
The gap between the cutting elements and the hole in the grater determines the size of the foam particles at the outlet.

If you place such a crusher indoors and install a dust collector on the machine’s engine with your own hands, you can do without a protective-collecting casing around the shaft and forced suction of fine material.

A homemade crusher has its drawbacks:

dust in the room;
a large number of uncut pieces.

For the remaining large pieces, a kind of manual chopper is used. In this case, the foam crusher is an ordinary plastic box designed for transporting and storing vegetables and fruits. Pieces of foam plastic are simply rubbed along the bottom of the box using forward-return movements like a vegetable grater.

A do-it-yourself crusher can bring significant income to its owners if properly configured for processing the material and its further sale

It is important here that the source material, polystyrene foam, is always available for processing, and that all conditions are created for weighing and packaging the granules into plastic bags.

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Reasons for rapid discharge

There are many reasons why even the best quality batteries are discharged very often:

high level of humidity. If a gas heater is installed in a bathroom, then increased water evaporation can negatively affect its operation. Moisture settles on the contacts and promotes their oxidation, which leads to a decrease in charge,
ionization sensor offset. Over time, the combustion sensor may become dislodged, causing it to take longer to produce a spark. In this case, much more energy is consumed, and charge loss occurs many times faster than it should,
Piece displacement. The situation is similar to that described above. The pieze moves away from the burner and takes a longer time to ignite. In this case, in addition to the rapid discharge of electrical elements, there is also the possibility of an explosion as a result of gas accumulation inside the heater body,
problems with the control unit board. In addition to the piezo, the speaker contains an electronic control module, which is also powered by batteries. If any problems occur on the unit’s board (burnt-out resistor, short circuit, dirty tracks, etc.), the charge is consumed faster than usual.

By eliminating the above problems, you will significantly extend the life of your batteries.

How to choose batteries

When choosing replacement batteries, you must follow the manufacturer's recommendations. In addition, it is advisable not to save money by purchasing cheap batteries. It is better to trust trusted manufacturers. In this case, the next replacement will not be required very soon. You can also buy batteries that are rechargeable. They cost more than regular batteries, but will last much longer.

Types of foam shredders

It is better to immediately purchase high-quality material for roof vapor barrier than to redo all the work later.

The technique is somewhat different from roof installation.

If the amount of material is large enough and you need not 1 bag, but 10, 20 or more, you should decide how to make a crusher:

using a mesh (production 0.2–0.3 cubic m/h). The most profitable and quickly implemented method;
using an industrial crushing plant as an example (at least 1 cubic meter per hour). The equipment will be more expensive (although more profitable compared to buying a ready-made version) and will require more time to manufacture.

Mesh crusher

The simplest way to make a foam crusher with your own hands is to create a small grater machine, the design of which consists of:

a round mesh element in the form of a disk;
the shaft on which the mesh is installed;
bases for mounting the motor and shaft. The engine can be taken, for example, from a concrete mixer, additionally installing a gearbox to reduce the speed (too fast rotation will lead to too small particles).

Classic crusher

To increase the volume of production of foam granules, it is worth using the design of an industrial foam crusher, which you can purchase - but it is more profitable to make it yourself.

Industrial crusher knives.

You can earn good money in the production of foam chips with minimal investment.

Why do batteries fail quickly?

There are several reasons why batteries do not last long.

High humidity

High humidity in the bathroom leads to oxidation of the contacts in the housing where the batteries are installed. Plaque increases the resistance at the contact point, increasing overall power consumption - the charge is spent not only on powering the circuit, but also on heating the contact plates.

It’s easy to check the condition - you need to open the cover and remove the blue coating from the contacts and from the battery itself. If necessary, use sandpaper.

Valera

The voice of the construction guru

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When installing or replacing cells, be sure to use the battery compartment cover gasket, if it is included in the design. This will reduce the flow of moist air to the contacts. When initially installing speakers in the kitchen, try not to mount the unit above the sink.

Problems with the ionization sensor

The fire sensor monitors the presence of a flame when igniting and operating the burner in water heating mode.
For proper operation, the tip must be heated with a flame for several seconds. All this time, the energy of the batteries is spent on generating an igniting spark. Prolonged activation of the ignition may indicate a malfunction of the ionization sensor.

As a result of prolonged use, the “leg” of the element may become deformed and tilt the device away from the flame. Heating takes longer when turned on, which directly affects energy consumption.

The working contact of the sensor may be dirty, which also increases the response time.

It is important to find out where the control device is located and keep it clean

Electrical ignition malfunctions

Deviations in the operation of the ignition are manifested in numerous discharges at the moment of switching on.
The reasons, the same as with the ionization sensor, are deviation of the contacts from the burner or their contamination.

It is necessary to carefully return the part to its original position and remove carbon deposits.

Burner clogged

Cleaning gas burner nozzles As the burner is used, carbon deposits are deposited on the burner holes (nozzles), and the gas output from the first holes decreases. As a result, a sufficient amount of gas reaches the ignition site with a slight delay. At this time, the batteries consume spark energy, which reduces the service life of the batteries.

Externally, the malfunction manifests itself in a smaller flame from those closest to the ionizer and ignition of the burner holes.

Control unit malfunction

Problems with the block can be judged by several signs:

interruptions in ignition operation;
spontaneous shutdown;
instability of heated water temperature;
broken indication of operating modes.

Before calling a technician, they try to replace the batteries with known good ones and try to understand if there are any problems with the ignition and ionizer.

The cause of unit failures may be faulty fluid temperature sensors and combustion product removal control sensors. The identification should be entrusted to a specialist. In addition, damage to the mechanical parts - the flow regulator and the gas valve - is possible.

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Failure of gas equipment can cause poisoning or destructive explosions; you must not interfere with the operation of the devices yourself.