Do-it-yourself construction vacuum cleaner-cyclone. Do-it-yourself vacuum cleaner cyclone - high technology at home Do-it-yourself cyclone for a workshop

When working in a workshop or at home with a grinding tool, when processing parts and preparing surfaces, there is a need to remove fine dust. And, of course, it is desirable to reduce its concentration even during work by organizing local permanent air purification at the workplace.

In enterprises, this problem is solved by installing filter units with a cyclone, which captures and settles dust with the required efficiency.

In our case, it is enough make a vacuum cleaner with a cyclone, thereby saving on the purchase of a construction vacuum cleaner, where such a function is provided by the manufacturer.

The principle of operation of a homemade construction vacuum cleaner with a cyclone filter

There are several options for manufacturing a cyclone for domestic needs. To decide on the most effective scheme operation of the equipment, you should know the principle of operation of this filter.

The cyclone in the classic version is a cylinder and a cone, in the upper part of which there is an inlet for polluted and an outlet for purified air.

The inlet is made so that the air enters the filter tangentially, forming a rotating flow directed towards the cone of the equipment (down).

Inertial forces act on pollutant particles, carry them out of the flow to the walls of the apparatus, where dust is deposited.

Under the influence of gravity and the secondary flow, the mass deposited on the walls moves towards the cone and is removed to the receiving hopper. Purified air rises up along the central axis and is discharged through a branch pipe located strictly in the center top platform cyclone.

A prerequisite for effective air purification is the accurate calculation of the apparatus and the tightness of the cyclone, including in relation to the receiving hopper.

Otherwise, the principle of operation is violated and a chaotic movement of air occurs, preventing dust from settling in the normal mode.

In addition, it is necessary to select an engine that sucks in polluted air, which will ensure optimal equipment operation parameters.

Homemade filter for construction vacuum cleaner, the variants of which are offered on the Internet cannot be called a full-fledged cyclone.

The most simple circuit Such equipment is a plastic barrel with an embedded tangential inlet pipe, a built-in filter from the car inside the “cyclone” body, through which purified air is removed and to which a household vacuum cleaner is connected.

The disadvantages of the equipment are the absence of a formed flow swirling along the walls of the barrel and a laminar return flow.

In fact, we get an additional capacity for the deposition of large particles (sawdust, shavings), and fine dust will clog the filter at the outlet, and it will require constant cleaning.

To improve the design, we suggest supplementing the plastic barrel with a homemade cyclone made from a traffic cone. It is best, if the work is carried out for several hours, to install a stationary version of the equipment to remove dust from the workplace.

In this case, we need a radial household fan. And with a one-time connection of the cyclone, it is enough to use a conventional vacuum cleaner with adjustable suction power.

Sometimes an additional rheostat is installed to reduce the speed of the vacuum cleaner motor, thereby selecting the parameters necessary for the normal functioning of the filter.

In the following sections of the article, we will present you with two variants of a cyclone for domestic use.

Inventory selection - what is required for work

For the first design option for a fixed installation, you will need the following components:

plastic barrel;
Gray plastic sewer pipe with a diameter of 50 mm;
traffic cone;
Corrugated hoses reinforced with steel wire or metallized hoses;
Glue for plastic;
Radial domestic fan with the ability to change the engine speed and performance equal to six times the air exchange in the room;
Plywood 10-12 mm thick.

The second version of the product is the most successful, since in this case the product approaches the functionality of a real cyclone.

To make a filter, you will need to purchase:

Ready-made plastic cyclone made in China;
A barrel, bucket or other container for making a dust bin;
Corrugated hoses.

A plastic cyclone is inexpensive, about 1500-2500 rubles, and is designed to collect dust of medium and heavy fractions. Works great on chips and sawdust.

Step-by-step instructions for the cyclone assembly process

The first option we have in line fixed structure for workshops with a lot of dust various origins.

Assembling the filter cyclone type for vacuum cleaner

First, we make the cyclone itself. In a plastic cone we make a hole for the passage sewer pipe tangent.
For better connection of the branch pipe with the body of the cone, matting the mating surface with emery cloth. We glue the seams with a mounting gun.
In the upper part of the cone, we install a vertical branch pipe, the lower end of which should be below the inlet. Thus, we can achieve a vortex movement of air. The branch pipe is fixed in a plywood sheet in the form of a circle with a diameter equal to the size of the base of the cone.
The prepared cyclone is fixed on the barrel lid with a round plywood sheet.
So that the plastic barrel, when clogging the inlet pipe with debris, does not deform under the influence of vacuum, we install a spacer inside the container - a frame made of plywood sheet. The outer dimensions of the frame repeat the inner diameter of the barrel. To strengthen the structure, we attract the building cone to the container lid with the help of metal studs.
Next, we connect the cyclone to the corrugated hoses at the inlet and outlet. We install a radial household fan outdoors under a canopy.

The second version of the construction vacuum cleaner is based on a Chinese plastic cyclone, which is also attached to any of the selected containers. It turns out a reliable and efficient design.
Fastening of the cyclone to the tank is carried out using a clamping metal flange.

VIDEO INSTRUCTION

When starting the vacuum cleaner and further exploitation do not forget to clean the inlet pipe and stop the internal spacers on the tanks to prevent deformation of the receiving hopper.

If finer air purification is required, then the design is complemented by an automobile filter in the housing at the outlet of the product.

Very simple Cyclone made from scrap materials, does its job well for maintenance homemade CNC milling cutter.

On the video: the first inclusion, the test showed that the lower bottle needs to be stiffened, which is done.

Materials and tools:
1. Old working vacuum cleaner and two hoses to it
PVC sewer pipes D=100mm, D=40mm
pipe sample

2. Thin sheet metal ~ 0.2-0.5mm or roofing metal profile (should be straightened with a hammer)
3. Two plastic bottles 2.5 liters with corks, eggplant 5 liters.
4. Scissors for metal, el. drill, drill bits, paper scissors, knife, PVC tape, hot glue gun, riveter and rivets
5. Welding electrodes or similar rods 6 pieces, wide adhesive tape, pencil

Purpose:
The Cyclone filter is designed for coarse cleaning of the intake air, it removes heavy fractions before the air enters the pump turbine impeller. Thanks to this, it is possible to suck in fairly large debris, chips, wood chips and it will not damage or clog the pump impeller when using a vacuum cleaner without a bag or bag.

Application:
To collect chips from working area machine tool, drill, electric planer, saw, etc.

An example of the use of this homemade Cyclone Works with CNC router

The principle of operation of the Cyclone is shown in the figure below.

The sucked-in air with debris is twisted into a high-speed spiral vortex, large particles are pressed by centrifugal force against the pipe wall and spirally slide under their own weight into the collection bottle.

Manufacturing:
We cut PVC pipes with a diameter of 100 mm. straight cut 400-500 mm. , flat, without fasteners section, this will be the body of the Cyclone.

Cut off from a pipe with a diameter of 40 mm. cut to 100 mm. shorter than the body (this is the outlet to the vacuum cleaner) and a length of 150 mm. (dust suction). On the sheet metal draw three identical circles with a diameter equal to inner diameter body pipes, it is convenient to circle directly through the pipe with a pencil, in the center of these circles we draw more circles equal to the outer diameter of a thin pipe, circle around the pipe with a pencil.

[u] Scheme

We cut out the circles with scissors for metal, then cut the circles to the middle, as in the diagram, cut out the inner circles. We connect the resulting circles with the help of rivets into a single spiral. We put it on a thin pipe, distribute the turns evenly and additionally glue everything with hot glue from a gun.

Now we put the neatly obtained design of the spiral into the body, if necessary, we cut the hooks, leaving the protrusion outward as in the diagram.

In the upper part of the body pipe, we drill a hole for the pipe (suction), we correct it with a knife to get the correct oval, for tight fastening of the pipe.

We insert the pipe and direct it as in the diagram, tangentially, we glue everything well from the gun.

We cut out the cap with scissors from a five-liter eggplant, remove the threaded neck, adjust the hole for a tight entry of the D-40 mm pipe, put it on the body and glue it at the top and bottom with hot glue.

We cut off 2/3 of the length of the 2.5 liter bottle and put it on the bottom of the case, glue it.

We make a self-made coupling from two plugs, gluing them together, drill out the middle. The bottle, the garbage collector, must be reinforced with stiffeners, otherwise it will not withstand the vacuum of the vacuum cleaner and will simply shrink, the ribs can be made from thin welding electrodes, having previously beaten the coating with a hammer, and glue them with a corset around the circumference using a wide adhesive tape. We fasten the bottle into place, attach the vacuum cleaner hoses to the suction and exit, they fit perfectly with PVC D-40 mm., turn on and check the operation of the device.

No matter how extensive the range of vacuum cleaners on the market is, not everyone can afford to provide themselves with the appropriate units for industrial and domestic needs. The reason for this is often the high cost of industrial vacuum cleaners. On the one hand, cleaning in a garage or workshop takes a lot of time, and on the other hand, a vacuum cleaner costing from $ 500 to $ 1000 with a large dust container and good suction performance. Great solution problems can serve as a homemade vacuum cleaner for the workshop, made by hand. It is enough to remember how well we know how to make something. The same principles can be applied when a factory-made home assistant fails in terms of breaking the integrity of filters or dust collectors. To implement such a project, you will need to be patient and have some improvised means that may be gathering dust in the far corner of the garage. A homemade vacuum cleaner is easily suitable for indoor cleaning, helps to collect construction debris, and allows you to remove dust flying out from under the working surface of a power tool.

Homemade vacuum cleaner filter

Initially, before you start stocking up on materials for the manufacture of the unit, you should clearly define the tasks that the vacuum cleaner must solve. So, a garbage collection container can be a couple of liters for cleaning in an apartment and other domestic premises, or several tens of liters for cleaning construction waste at work sites or in garages. For such a container, a large barrel or a small bucket from under any building material is perfect, the main thing is that you have the opportunity to ensure the sealing of this container during the garbage collection process. If the required degree of tightness is not achieved, fine dust fractions sucked in by the air flow through the holes will enter the air atmosphere of the home or the air of the working area. Things are much worse when cleaning harmful chemical substances and building materials, since in the form of dust or aerosol in the air of the working area, they can worsen well-being and harm human health.

Apart from air pollution, poor sealing will result in loss of suction power. If instead of a garbage container, you decide to make a homemade bag for a vacuum cleaner, it should also hold dust and not let it into the environment.

The size of the meshes between the fibers should be such that dust of a certain size is contained inside the bag and is not blown back into the room. Of course, in domestic premises the type of dust and its dimensions are larger than the dust of construction waste and dust flying out from under a working power tool.

How to choose a pump?

The device for creating an air flow can be taken from a ready-made vacuum cleaner that was in use, but for one reason or another unsuitable for further use, or you can use any pumping device that meets the requirements:

Should work in the rated load mode for a long time, sufficient to complete the tasks and all manipulations;
Must be able to withstand both short-term and long-term overload so that a clogged hose does not cause overheating and failure.
It must provide sufficient suction power, taking into account the installed filters and other obstacles in the path of the air flow.

In areas where it is not required high strength suction, the role of a pump can be performed by an ordinary household vacuum cleaner, for example with a bagged dust collector. To do this, the bag dust collector is removed, and necessary accessories elements.

Making a filter

The best solution for creating a filtering device for a homemade vacuum cleaner is a do-it-yourself cyclone filter. The manufacturing principle is quite simple: you will need to make a structure from a cylinder with two holes for the inlet and outlet of the air flow sucked in by the vacuum cleaner and a truncated cone pointing down. For these purposes, any material from metal to plastic can be suitable. The only requirement for the entire design of the cyclone is high-quality sealing of all slots and openings. The reason is the same as for the dust collector: the appearance of a dusty fraction in the air and a decrease in the performance of the unit. Consider manufacturing option makeshift cyclone for a vacuum cleaner made of plastic pipes. The only difficulty in manufacturing will be the conical part, which will have to be selected from finished parts or made independently. To make you will need:

a pipe with a width of 100 mm and higher, the larger the pipe, the better the work of the cyclone filter can be obtained;
two small diameter pipes for inlet and outlet. On average, pipes from 50 mm and below are taken, depending on the diameter of the working hose.
a conical part, the larger diameter of which corresponds to the diameter of a large pipe (cylinder).
For wide cylinders, from 150 mm in diameter and more, a small diameter cord or flexible tube will be required for the filter guide.
A cap that will fit snugly into the top bore of the cylinder.
glue or material for soldering, sealant.

A homemade cyclone vacuum cleaner will turn out in this way much cheaper than a factory one due to a cheap filter, the cost of which will cost 8 - 10 dollars, unlike the original factory cyclone filter. Initially, a wide pipe is taken, selected for the role of a cylinder, and cut to the required height (if you were not able to purchase the right size). The holes for the inlet and outlet should be cut as accurately as possible, avoiding chips and uneven edges. If the air intake hole should be placed in a horizontal plane, then the air outlet hole can be located both on the pipe itself and on the top cover of the cyclone filter. It is worth proceeding from where it is most convenient to provide high-quality sealing. If the material of the cover is much easier to cut and the sealant is fixed normally, then it is better to give preference to the cover, otherwise, the outlet should be placed on the body. The main condition is that the outlet pipe must be located above the inlet. This will allow the debris to sink down, passing only air and fine dust to the outlet. To capture such dust, you can use some homemade filters, for example, fabric or adapt a car filter, this will protect a home-made construction vacuum cleaner from types of debris that are dangerous for the engine.

To create a swirl of the air flow that is sucked into the cyclone, a flexible hose or cord made of waterproof material should be glued spirally on the surface of the cylinder. Such a spiral will increase the efficiency of the cyclone filter. It should be noted that such an addition will only work for a large diameter pipe, into which it will be easy for you to penetrate with your hands. The inlet and outlet pipe is fixed in the respective holes with sealant, heat shrink, adhesives or pieces of pipe, which are soldered with a soldering iron. The main task of this material is to firmly fix and seal the tubes. The top cover should fit snugly against the edges of the cylinder, you can, if desired, fix it with a sealant, but then the process of cleaning the internal surfaces of the cyclone filter from accumulated debris will become more complicated. We should also not forget that the surface can become electrified and accumulate a static charge that will hold dust. Therefore, it is better to immediately install the cover on the door seal, this will prevent dust from entering the room and will allow you to freely open the cover at the right time. The conical part can be strengthened with sealant or glue, since it is unlikely to have to be removed. Through the hole in the truncated cone, the debris will fall into the bin.

Such a device can be useful not only for those who are thinking about how to make a homemade vacuum cleaner, but also for owners of working factory-made vacuum cleaners. If you are tired of constantly changing the dust bag or the filters are clogged, then installing a homemade cyclone will help solve this problem without extra costs to buy a new vacuum cleaner.

If you undertook to make an industrial vacuum cleaner, then you can mount a socket on it for connecting a power tool, which will allow you to ensure parallel operation of the vacuum cleaner and the tool. An automatic activation system for the vacuum cleaner can be connected to the socket circuit, which will suck up dust when the tool is started. In addition, such a system can provide a delay in turning off the vacuum cleaner after opening the power tool circuit. This will allow the industrial vacuum cleaner to collect the debris and dust that have flown out within a few seconds after turning off the power tool.

What should be considered when making a homemade vacuum cleaner?

In the manufacture of home-made vacuum cleaners, some craftsmen, in order to save their own time and effort, include factory parts and spare parts in the unit. In most cases, such a step is quite justified, with the exception of the installation of filters. For a homemade vacuum cleaner, you should by all means avoid installing the notorious HEPA filters. These filters work on the principle of retaining fine dust particles in the pores of the filter itself. Because of this, as the filter fills with debris, suction power and, consequently, the quality of cleaning will gradually be lost. All kinds of attempts to clean such filters do not lead to the expected results, since the dust is not completely blown out, and when washed and washed out, it leads to the processes of decay and the development of bacteria. It is clear that these bacteria are blown back into the room during operation, this process is expressed in bad smell while the vacuum cleaner is running.

To optimize the operation of the vacuum cleaner, you can connect two hoses - one for suction, the other for blowing, the blowing hose will allow you to effectively clean various surfaces and hard-to-reach places, because the immediately blown dust will be collected by the suction hose. However, the absence of a filter in a conventional vacuum cleaner can also lead to the opposite effect, because in order not to use it, it is necessary to provide the device with an ideal cleaning system, and it is very difficult to do this at home. So if you need real cleanliness, it’s better to save on something else, and choose a reliable and filterless cleaner to clean both air and surfaces. And all this about the separator apparatus! So good luck with choosing and using a vacuum cleaner.

Very often after repair and construction works there is a lot of debris and dust that can only be removed with a powerful vacuum cleaner. Since a conventional home appliance is not suitable for these purposes, a filter is used for which it can also be homemade. How to make a cyclone for a vacuum cleaner with your own hands, so that the unit can effectively cope with the cleaning of construction dust?

Those whose work is constantly connected with repair, construction and carpentry, know firsthand the problem of cleaning the premises after the completion of direct work. Construction wood dust, crumbling plaster, the smallest grains of foam plastic and drywall usually settle in a dense layer on all horizontal surfaces of the room. It is not always possible to wipe such a disgrace by hand or sweep it with a broom, because with a large area of \u200b\u200bthe room, such cleaning will take long time. Wet cleaning also often impractical: a mixture of water and thick dust is even more difficult to wipe off.

In this case, the optimal solution is vacuum cleaner application. The standard vacuum cleaner that we are used to using in everyday life will not work. First, due to a large number the dust collector will instantly become clogged, and you will need to clean it at least once every 15-20 minutes. Secondly, the ingress of large particles, such as splinters, sawdust or wood chips, can cause clogging or a complete malfunction of the device.

A construction vacuum cleaner has a much higher vacuum than a household one. Features of its engine provide long work, and the presence of a long hose (3-4 m or more) allows you to clean a large area.

However, industrial and construction vacuum cleaners are large, not very convenient to use, clean and move, and not affordable for everyone. Therefore, many craftsmen increase the possibilities household vacuum cleaner, supplying it with a special cyclone filter. Similar dust collectors can be purchased from ready-made, and assemble your own version.

We make a cyclone ourselves

On the web, you can find many detailed diagrams and drawings of cyclones. Let's give an example of making a simple filter that can be assembled at home, having necessary materials, patience and a little skill. For work you will need:

Any oil filter for small debris (these can be bought at auto supply stores).
20-25 l container with tightly screwed lid.
Polypropylene elbow with 45° and 90° angles.
The pipe is about a meter long.
Corrugated hose 2 meters long.

Make a hole in the lid of the main container. The width of the hole is adapted to the polypropylene elbow with an angle of 90°.
Seal existing gaps with sealant.
On the side wall of the container, make another hole and attach a 45° angle.
Connect the corrugated hose and elbow with a pipe. Tilt the outlet hose towards the bottom so that air with debris is directed along the required path.
On the filter, you can put on a material made of nylon or other permeable fabric in a fine mesh. This will prevent large particles from entering the filter.
Next, connect the elbow on the cover and the filter outlet.

Of course, this is only a brief and approximate scheme for creating a cyclone. We present to your attention a video where, in detail and with a good example, it is shown how to make a filter from improvised materials.

We check the made filter for tightness, as well as for suction quality. Garbage should be collected at the bottom of the tank or settle on the walls.

If everything is assembled correctly, suction will occur efficiently and at high speed.

When processing wooden blanks, everyone must have come across the fact that everything around is covered large quantity shavings, sawdust and wood dust. In order to at least partially get rid of them, various dust collectors, chip extractors, filters and other devices are used. Many power tools and machine tools have their own dust collectors, while others have special outlets for connecting a vacuum cleaner.

In home workshops, it will be better to use special. vacuum cleaner than household. Firstly, the engine in special. the vacuum cleaner is designed for more than a long work, and secondly, as a rule, it is equipped with a hose with a length of 3 m, which greatly simplifies its use with power tools. And yet, the minus of each vacuum cleaner is a small container for garbage.

How to make a cyclone filter with your own hands

Having set out to somehow simplify the work of cleaning the vacuum cleaner and reduce the cost of bags, I began to collect information on this issue. I found a description on the Internet different types simple devices in the form of intermediate dust collectors for a vacuum cleaner. Firstly, these are dust collectors in the form of a mini-cyclone. They do a good job of collecting dust in a separate container, preventing it from getting into the vacuum cleaner, which increases the service life of the bags tenfold. The process of cleaning the dust collector from debris is also facilitated. Ready-made fixtures are sold through online stores, but their cost is quite high with a very simple design.

Design. I decided to make my own mini-cyclone dust collector. The author and developer of this design is Bill Pentz from California. Having earned himself a serious allergy to fine wood dust, he subsequently devoted a lot of time and effort to the fight against both the disease itself and its causes.

The dust collector is a device, the main element of which is an inverted truncated cone, inserted into the bottom of the dust collection container. AT upper part dust collector, a tube is inserted for connecting to a vacuum cleaner, and on the side, tangentially, a tube for connecting a hose from a tool.

When air is drawn in by the vacuum cleaner, turbulences form inside the apparatus, and debris, moving along with the air, is thrown by centrifugal forces to the inner walls of the filter, where they continue their movement. But as the cone narrows, the particles collide more often, slow down their movement, and, under the influence of gravity, fall into the lower container. And the partially purified air changes direction and exits through a vertically installed pipe and enters the vacuum cleaner.

There are two mandatory requirements for this design. This is, firstly, its tightness, otherwise there will be a sharp loss of suction power and air purification quality. And, secondly, the rigidity of the container and the cyclone body itself - otherwise it strives to flatten.

There are tables on the Internet with drawings of cyclones for various particle sizes. The cyclone body can be made from galvanized or plastic, or you can choose a ready-made container similar shape. For example, I saw cyclones made on the basis of a road cone (necessarily rigid), plastic flower vase, a tin horn, a large toner tube from a copier, etc. It all depends on what size cyclone is needed. The larger the debris particles, the larger the diameter of the tubes for connecting hoses should be and the more massive the cyclone itself is.

Bill Pentz points out some of the features of his design. So, the smaller the cyclone in diameter, the greater the load on the vacuum cleaner. And if the garbage container is low and flat, then there is a possibility that garbage will be sucked out of the container and get into the vacuum cleaner. When using a container of any shape, it must not be filled to the top with garbage.

The choice of material. I decided to use as blanks plastic pipes for outdoor sewerage and fittings for them. Of course, it will not be possible to create a full-fledged cone from them, but I was not the first to try to use them for this purpose. The advantage of this choice is the rigidity of the parts and the tightness of their connections due to seals. Another plus is that there are various rubber pipe inserts that allow you to easily and tightly connect the vacuum cleaner hose. In addition, if necessary, the structure can be easily disassembled.

For my collection of large sawdust and shavings, I made a cyclone from a ∅160 mm pipe. I used ∅50 mm pipes as hose connectors. I want to draw your attention to the fact that the eccentric adapter from a pipe ∅110 mm to ∅160 mm must be funnel-shaped. I have seen flat ones, but they won't fit - nothing will work with them, and debris will get stuck.

Do-it-yourself cyclone progress of work

Operating procedure. In the plug for the ∅160 mm pipe and the body pipe, I made holes for the hose outlets. Further, using a thermal gun, I glued a piece of pipe ∅50 mm into the plug. It should be located in the middle of the cyclone body and be a couple of centimeters lower than the side tube, so it is better to first glue the longer pipe into the plug, and then cut it in place during assembly.

On the Internet, I found complaints that hot melt adhesive does not stick to PVC pipe, and advice to weld parts with a soldering iron and pieces of the pipe itself. I tried, but didn't do it. Firstly, the glue stuck to me perfectly, and, secondly, the smell of melted plastic discouraged any desire to weld anything in this way, although the connection may be more durable and neat.

The difficulty of working with hot melt adhesive is that it does not spread, and the seam, in the absence of skills, is not very even. I had such a sad experience - I decided to heat it with a hair dryer to even out the seam. I got a smooth surface of the adhesive influx, but at the same time it deformed itself plastic tube and had to be thrown away.

In the next step, I glued to inner surface body spiral, which should direct the air flow down to the dust collector. This solution was recommended by Bill Pentz himself - according to him, this almost doubles the efficiency of the cyclone. The spiral with a height of about 20% of the gap should fit snugly against the body and make one turn with a pitch equal to the diameter of the inlet for the side pipe.

As a material for it, I used a plastic rod, which I heated with a hair dryer and bent in the form of a spiral (photo 1), and then glued it into the case (photo 2) using a heat gun. Then glued the side tube (photo 3), the inner end of which is directed slightly downward.

As soon as the glue had cooled and hardened, I measured and cut the vertical outlet tube so that it was 2-3 cm below the cut of the side tube, and finally assembled the whole structure.

I made a garbage container from a hard plastic barrel, to the bottom of which I attached wheels - it turned out to be very convenient for cleaning it (photo 4). I cut a viewing window on the side of the barrel and closed it with acrylic glass on hot melt adhesive. I reinforced the connection with a plastic ring and bolts from above. Through such a porthole it is convenient to monitor the filling of the container.

I didn’t have a barrel lid, and I made it from a piece of countertop, which had been waiting in the wings for a long time after inserting a sink in the kitchen (photo 5). On the underside of the countertop, a milling cutter selected a groove under the edges of the barrel and glued a window seal into it to seal the connection. (photo 6). The hole in the lid is supposed to be in the center, but then I would have problems placing the cyclone in the workshop, so I made an offset hole. The lid is attached to the barrel with latches from a long-broken vacuum cleaner. From him also used a hose to connect the cyclone. I want to draw your attention to the fact that it is better to take hoses from vacuum cleaners. If we take, say, corrugated pipe for electrical wiring, when the vacuum cleaner is turned on, a whistle and a terrible noise appear.

Do-it-yourself cyclone for a vacuum cleaner

Connecting the cyclone to the instrument. Not all tools have an outlet for a vacuum cleaner. So I decided to make a simple adjustable vacuum cleaner hose holder. For him, from scraps of plywood, he made blanks for levers (photo 7). The holder was supplemented with a sewer clamp for attaching the hose (photo 8). Specially made stand large sizes so that it is possible to fix it with a clamp or hold it with a load. The holder turned out to be convenient - I use it not only for a vacuum cleaner hose, but also for a portable lamp, laser level and supporting a long workpiece in a horizontal position.

After assembling the cyclone, he conducted several experiments to determine its efficiency. To do this, he sucked in a glass of fine dust, after which he measured its volume that fell into the dust collector capacity. As a result, I was convinced that about 95% of all garbage gets into the barrel, and only very fine dust, and then an insignificant amount of it, gets into the vacuum cleaner bag. This result suits me quite well - now I clean the bag 20 times less often, and only from fine dust, which is much easier. And this despite the fact that my design is far from perfect in terms of shape and proportions, which, of course, reduces efficiency.

Wiring. After checking the performance of the cyclone, I decided to make a stationary distribution of hoses around the workshop, since a three-meter hose is certainly not enough, and a vacuum cleaner with a cyclone is bulky and clumsy, it is inconvenient to move them around the workshop every time.

Due to the fact that standard pipes were used, it was possible to mount such a wiring in an hour. I pushed the vacuum cleaner and cyclone into the farthest corner, and laid pipes ∅50 mm around the workshop (photo 9).

In the workshop I use a specialized BOSCH green series vacuum cleaner. After four months of operation in tandem with a cyclone, I can say that they are generally coping with their task. But I would like to slightly increase the suction power (when working with a jigsaw, you have to move the hose almost close to the cutting zone) and reduce the noise level. Since few chips get into the vacuum cleaner itself, there is an idea to make a more powerful impeller and take it outside the workshop to the street.

I can also say that the suction power of the vacuum cleaner dropped a little when using it with a cyclone, but at work it is not very noticeable. There were doubts that static electricity could accumulate on the elements, because the whole structure is plastic, but this practically does not happen, although earlier, when collecting fine dust, the hose had to be grounded.

Of course, when using professional pipes with large outlets, pipelines of this diameter are not enough. It is better to take ∅110 mm or more, but then both the vacuum cleaner and the cyclone should be more powerful. However, for my homework, this is enough.

The vacuum cleaner hose was firmly fixed on a small pipe outlet ∅50 mm and inserted into right place wiring. At the same time, the remaining wiring outputs are closed with plugs, rigidly put on short taps. Relocating the hose is a matter of seconds.

During operation, I encountered one little problem. If a small pebble gets into the hose (the concrete floors have not been repaired for a long time) or another small but heavy object, it moves through the pipes to the vertical section in front of the cyclone and remains there. When such particles accumulate, other debris clings to them, and a blockage may form. Therefore, before vertical section wiring, I embedded a camera from a pipe ∅110 mm with an inspection window. Now all the heavy debris is collected there, and by unscrewing the lid, it is easy to get it. This is very convenient when fasteners or small parts accidentally get into the vacuum cleaner. here it’s simple - I unscrew the lid, turn on the vacuum cleaner and mix everything that remains in the revision with my hand. Small particles immediately fly into the cyclone tank, while large particles remain and are easily removed. Their number is usually insignificant, but recently I found a missing screwdriver bit in such garbage.

Also, the inspection hole can be used for temporary connection of a ∅100 mm hose. It is enough to unscrew the cover - and we get a finished hole ∅100 mm. Naturally, in this case it is necessary to muffle all other wiring inputs. A flexible adapter can be used to simplify connection. (photo 10).

To remotely turn on the vacuum cleaner, a switch was installed next to the hose clamp (photo 11) and additional . It can be used to connect a power tool, then you will definitely not forget to turn on the vacuum cleaner before using the tool - this often happens to me.

I use all of the above devices on a regular basis. I am satisfied with the result - there is noticeably less dust in the workshop, it is easier to clean. During this time, I collected several bags of sawdust, and very little debris accumulates in the vacuum cleaner. I want to check the cyclone for collecting small garden debris and dust when cleaning the concrete floor.

I think this design is very useful and affordable for making at home.

Sergey Golovkov, Rostov region, Novocherkassk