How to choose a spray booth filter. Open Type Spray Booths (Dry Filtration Spray Booths) Dry Paint Booth

Spray booths with dry filtration (paint booths with dry filters, dry spray booths, dry curtains) are a simple and effective way to organize a painting area, since they do not require large capital expenditures for purchase and installation, they have a high degree of exhaust air purification, they are compact and economical . The modular design of the chambers makes it easy to change its size and configuration depending on the scope of work or the range of products to be painted.

Spray booths with dry filters are equally suitable for painting both small parts and products with large linear dimensions. They allow you to quickly and cost-effectively create normal sanitary and hygienic conditions in the workplace and significantly improve the quality of painting.

The chambers can be used as an independent element, as well as be part of other painting equipment, such as "clean rooms". The design of chambers with dry filtration allows for their repeated disassembly and assembly while maintaining all technical characteristics and appearance. Long-term operation of spray booths in furniture, carpentry and metalworking industries in various regions of Russia has shown their high reliability and efficiency.

The use of spray booths with dry filtration allows not only to significantly reduce the concentration of solvent and paint vapors at the painter's workplace, but also significantly reduces the overall concentration of harmful substances and dust in the workshop.

The design of the spray booths allows you to independently add optional units to them during operation without any preparatory work. This makes it possible to more accurately select the desired equipment configuration corresponding to the processing of specific products.

Main technical characteristics

Parameter name	Paint booth model
	MT 20 1001	MT 20 1002
Overall dimensions of the chamber, L/W/H, mm	2040/1620/2645	3040/1830/2750
Overall dimensions of the working area, L/W/H, mm	2000/825/2000	3000/900/2000
Fan capacity, m³/h	4500/6500/8500	6500/8500
Fan motor power, kW	1,5/2,2/3,0	2,2/3,0
Area of ​​installed filters, m²
fiberglass paint-blocking	3,6	5,4
cardboard maze	3,6	5,4
Lighting
luminaries Luminescent lamp built-in 2x30 W, pcs	-	2
built-in fluorescent lamp 4х30 W, PCS	1	-
Maximum consumed mo power, kW	3,2	3,2
Weight, kg

The composition of the chambers in the minimum configuration

Spray booth MT 20 1001		Spray booth MT 20 1002
Element	Qty.	Element	Qty.
	1 PC.		1 PC.
filter frame L=2000 mm	1 PC.	filter frame L=3000 mm	1 PC.
	1 PC.		1 PC.
	1 PC.		1 PC.
	1 PC.		2 pcs.
	2 pcs.		2 pcs.
	2 pcs.		2 pcs.

Designed for manual application of paint coatings by air, combined and airless spraying with simultaneous removal of solid residual suspensions from the working area and air purification from harmful impurities.

The chamber is used for installation in the finishing shops of furniture enterprises, in the production processes of which flammable, explosive and technical solvents are used, as well as in the production of window and door blocks, chairs, cribs and other woodworking industries. Satisfies fire safety and sanitary standards.

Principle of operation

Spray booths are robust units designed for intensive work. The filter elements are high-tech inertial separator filters capable of withstanding up to 15 kg of filtered material per 1 m 2 of the working surface and fine filters. The chambers are developed on the basis of the best technical solutions of the leading European manufacturers of painting equipment. Painting booths are equipped with high-quality fans in intrinsically safe design made in Italy, inertial cleaning filters-separators made in France. Explosion-proof lamps made in the Czech Republic provide optimal glare-free illumination of work stations. The use of a double filtration system made of modern materials in the design makes it possible to achieve a degree of air purification up to 97%. Uniform distribution of the air flow in the working area makes it possible to obtain coatings of higher quality. Spray booths have a progressive modular design, made of galvanized steel.

Filtration scheme

Standard equipment

• Suction system
• side walls
• Electrical control cabinet
• Fluorescent lamp (in explosion-proof design), made in the Czech Republic
• Fan (intrinsically safe), made in Italy
• Non-woven filter kit

Options (change of equipment)

• Supply plenum
• Additional lamps
• Fans with increased performance
• Development of non-standard solutions at the request of the customer

The equipment is designed for a long service life, allows you to work with a wide range of paints and varnishes, providing optimal working conditions at minimal cost.

The most urgent problem of spray booths is the accumulation of mist from fine particles of paint inside the room. These elements can adversely affect human health. In order to eliminate these particles, it is necessary to install a filter for the spray booth. It is he who will ensure the free movement of air masses and clean them from pollution.

Spray booth filters are mostly made of polyester fiber or corrugated cardboard. These elements can be located on the floor or on the floor. Depending on the level of indoor air pollution, it is recommended to change them at least 1-2 times during the year.

Functions of the ventilation system

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Spray booth filters perform a very important function. They are able to capture particles of different sizes contained in the air. Small elements of this type can be presented in the form of dust or small debris.

High-quality air filtration inside the spray booth is very important at the final stage of painting, when forced drying of the applied layer is carried out. By its actions, the ventilation system prevents small particles from entering the surface to be painted.

Filtration steps

The filter for the spray booth provides three levels of purification of air masses from small particles. So, polluted air initially enters the ventilation system. Here it is cleaned from the content of unnecessary elements and already in its pure form the air masses return inside the spray booth.

Types of filters for spray booths

Spray booth filters are positioned as the main elements for capturing aerosol particles. They can be of single or twin engine design. According to the installation method, such devices are floor and ceiling.

Ceiling filters

In this case, it is best to use a roll filter material that can cover the entire ceiling surface. It is able to pass through itself the air masses entering the chamber. Fibrous structures are used as a filter base, which are pre-treated with special compounds.

Floor filters

Floor filters for spray booths are also available as roll material with increased fire resistance. An alternative option in this case is an inertial type filter. The operation of such a device is based on the principle of mechanical separation of large dust particles with a subsequent change in the direction of air flows. This variation of outdoor devices has many advantages:

• the possibility of cleaning large volumes of air;
• high quality cleaning;
• reliable operation of the entire system;
• maximum cleaning speed.

However, it should be noted that this device does not do a very good job of filtering particles that are too small. In this context, the installation of an additional filter is a vital necessity.

DIY filtration system

When installing the cleaning system yourself, it is recommended to install ventilation inlet filters and additional ceiling filters. Only such an approach can provide the most positive result.

In the process of installing the system with your own hands, you must also take care of installing cassette dust collectors. Such a need may arise if the ventilation operates in recirculation mode.

Another good way to install a ventilation system with your own hands is to implement the wet floor method. In this case, dust and paint residues enter the flowing water stream and are removed with it into the sewer. In this case, care should be taken to prevent splashing on the surface to be painted.

To clean the room from toxic emissions and to ensure air circulation, the spray booth must have a ventilation system, in which one of the main elements is a filter for the spray booth.

Painting the car must take into account sanitary and hygienic requirements. In addition, ventilation will ensure the removal of small particles from the painted surface, which guarantees high quality work. A special role in this is played by filters for the spray booth.

The main task of filtering

The main task of the spray booth filter is to improve the quality of surface painting. The filtration system serves to capture various foreign microscopic bodies that have a different origin.

1. Splashes of paint and solvents. Particles of consumables are serious environmental pollutants. They should only be removed after passing through the booth filter.
2. Dust. Significantly reduces the quality of car painting.
3. Small specks. As well as dust, they become the main cause of defects if filters for spray booths are not used during work.
4. Solvent vapors. When heated, these volatile substances are hazardous to human health and therefore must pass through paint filters.

High-quality filtration is necessary at the last stage of painting, in the process of forced drying and blowing the car with hot air. This can spoil the work of the most highly qualified specialist in the absence of a filter for spray booths. A liquid filter can be installed in the spray gun handle to prevent foreign particles from entering the spray nozzle.

Thus, a properly selected airbrush filter ensures uninterrupted operation of the equipment, high quality car painting.

At all stages of do-it-yourself vehicle painting, the spray booth filter provides an even, high-quality finish.

Types of filters for the compressor

Depending on the purpose, filters for the compressor can be divided into groups.

1. Air filters for the compressor. They are made from paper or fabric. Such filters filter out coarse particles of dust and dirt, so they must be cleaned regularly and changed in a timely manner, which will extend the life of the compressor up to 15%. Filters differ in size, thread, performance.
2. Oil filters trap oil particles. Such devices extend the overhaul cycle of the compressor, as they remove foreign particles from the lubricating fluid, which cause wear of the unit's components. Experts advise using filters of the same brand for each compressor to ensure the greatest efficiency of collaboration. Oil filters differ in maximum temperature, pressure, performance.
3. Panel filters are installed on the compressor housing at the air inlet to the unit. They prevent large debris from entering the compressor. This is the frame in which the filter material is located. Such a filter must be constantly blown with compressed air to maintain a high quality of cleaning.

Filtration systems

Spray booth filters provide three-stage protection or cleaning:

• rough;
• main;
• thin.

Coarse cleaning provides filtration of supply air flows. This system has mesh pleated filters for the spray booth. They are located in front of the fans. This system uses coarse filters for painting.

Basic cleaning. Filtering harmful particles that are in the air leaving the painting room requires serious approaches. An effective water curtain that easily retains contaminants. But due to the complexity of designing such a chamber, hydrofilters are used in spray booths.

Paint booths using dry filtration have either ceiling only (single motor designs) or ceiling and floor filters for the spray booth (dual motor designs). In single-engine systems, harmful vapors are pressed against the base by pressure and removed to the outside. This type of filtration is harmful to the environment.

In twin-motor machines, the polluted air flows out at the bottom, through the floor filter for the spray booth. Such designs are most preferred. Systems in which the ceiling and floor filters occupy a large area of ​​the box work especially effectively.

A good result is provided by fiberglass devices impregnated with a special solution. A stream of uncleaned air passes through a similar rolled floor filter, particles of the paint mist settle on its fibers.

The floor unit is easy to install and therefore is often used to create do-it-yourself ventilation for paint boxes.

Fine cleaning is an additional filter for the camera. They will not require regular replacement if the pre-cleaning and main cleaning are maintained.

You can make a filtration system with your own hands. At the design stage, it is important to correctly determine its location in order to avoid the presence of dead zones. To do this, ceiling and floor filters are placed throughout the chamber. It is immediately necessary to install a filter for the coarse spray booth.

If do-it-yourself ventilation uses the principle of recuperation, then inside it it is necessary to install filters for a cassette-type spray booth with a high accuracy class. Powder-type spray booth must have an exhaust ventilation system in the underground space with a filter for spray booths.

Do-it-yourself ventilation should ensure the removal of air from all areas of the spray booth. The spray booth filter surface must be cleaned and blown regularly.