High-speed washers SIOT
The SIOT class washer is a wet, direct-flow dust collector. The SIOT class washers are designed to clean contaminated air from wettable dust of various kinds in exhaust ventilation systems. The exception is fibrous, cementing dust and condensation aerosols.
The SIOT high-speed washer is advisable to use for cleaning dusty air in exhaust systems, where the washers work together with a fan and cyclones as the first stage of capture. Such solutions are manufactured by an industrial equipment plant from corrosion-resistant metal, and the housing walls are designed for uniform moistening and stable capture of various types of dust without being blown into the cleaned stream.
The SIOT high-speed washer is designed for uniform moistening and stable capture of various types of dust without being blown into the cleaned stream.
compact gas cleaning device for wet air cleaning in exhaust ventilation units from various types of dust. SIOT washers are recommended for cleaning dusty air in exhaust ventilation units from aerosol impurities, coordinating the work with the fan and cyclones in common aspiration units.
If you need to buy a SIOT high-speed washer in Kiev — contact the factory's sales department. The price in Kharkov and the possibility of buying in Ukraine in other regions is specified individually — it depends on the type, performance and material of execution.
Marking of a SIOT class high-speed washer
Example of designation — «SIOT-6», where:
- «SIOT» — developed by the Sverdlovsk Institute of Labor Protection;
- «6» — dust collector number.
The marking makes it easy to navigate when selecting a high-speed washer: it is recommended to use it for cleaning dusty environments, taking into account the dispersion of dust and the presence of condensation aerosols, in order to correctly match the hydraulic parameters of the washers with the performance of the ventilation unit.
The SIOT high-speed washer is recommended for cleaning dusty air in exhaust ventilation units, where a direct-flow channel of the SIOT type is combined with a correctly selected inlet pipe diameter according to the passport and technical requirements. The water pressure in front of the nozzles is coordinated with the characteristics of the fan and cyclones of the system.
Design advantages
The main components of the washer:
- cylindrical part of the housing;
- conical part of the housing;
- spinner;
- water supply system.
The design difference of the high-speed washer of the SIOT class lies in the specific design of the bottom and the shape of the inlet holes for the medium being cleaned. They provide optimal organization of the water curtain, which falls from the upper edge of the lower part of the inlet hole. The bottom is a twisted surface in the shape of a cone, the apex of which is located on the washer axis. The inlet pipe changes its configuration from a round cross-section to a triangular one. The boundary between the wet and dry surfaces of the washer is indicated by a ledge. Sludge is discharged through a drain pipe in the bottom, along an inclined tray. The cleaned air from the washer exits, bypassing the screw-type spinner. A valve is provided to regulate the system during commissioning. The inlet/outlet pipes can be installed at any angle to each other.
The difference of the high-speed washer of the SIOT class also lies in the increased intensity of mass transfer: a dense curtain is formed using nozzles, and the centrifugal action is sufficient to separate small dust fractions on the moistened walls. Such cleaning is effective even under variable loads, and the bottom assembly contributes to the uninterrupted discharge of sludge.
The SIOT class washers come in left and right versions. The air movement in the washer of the first version is carried out counterclockwise, the second — per stroke.
High-speed washers are convenient for integration into various tracing solutions, as the inlet and outlet pipes can be installed at a technologically convenient angle without violating the conditions of wetting the walls and the stability of the capture.
The wetted walls of the cylindrical part and the special geometry of the inlet pipe ensure high capture efficiency: dust deposition occurs on the surface with flow irrigation. SIOT washers can be installed before or after the cyclone as part of common aspiration units.
The productivity of SIOT class washer models varies from 12,500 to 280,000 m³/h, the diameter of the cylindrical part — from 1344 to 5400 mm. The water pressure before entering the nozzles of the upper zone of the unit should be 1 kgf/m². The recommended air velocity in the area of the round inlet pipe is 14-20 m/s. These scrubbers are used to clean air with an initial dust content of up to 5000 mg/m3. In high-speed scrubbers of the SIOT class, the efficiency of air cleaning from particles up to five microns is 95%, and larger particles are separated from the air. of the exhaust environment by more than 99%.
In these modes, the high-speed washer provides high cleaning efficiency, and stability of operation in exhaust networks is achieved due to the correctly selected water pressure and geometry of the inlet pipe.
In models of SIOT class washers, the diameter and height vary, so the characteristics, dimensions and «passport» are coordinated according to the project. Prices for cyclones and SIOT washers are formed after selecting the standard size; «price for the minimum standard size» is provided upon request.
Operating principle
Pollution is captured due to the deposition of particles under the action of centrifugal force on the internal moistened walls of the unit, as well as washing the air flow with sprayed water. The main part of the water enters the upper zone of the unit on the water distribution ring through the nozzles. It flows down from it, wetting the inner walls of the washer, and the rest enters the lower zone of the unit through the lower nozzle. The water flowing down the walls together with the dust enters the bottom - a screw cone. There is a triangular hole between its two halves, through which an additional air flow enters. It captures the water that has entered the bottom in the upper part of the cover in the direction of its rotation, from where it slides down onto the air flow entering the washer from above. When it comes into contact with this liquid, the flow additionally sprays it and carries it to the center of the unit. The settled suspension enters the drain pipe, and the rest of the water circulates repeatedly in the unit. This scheme allows you to effectively retain dust inclusions inside the unit and prevents them from being carried out with the purified air outside. Due to the combination of centrifugal separation and irrigation, SIOT class washers are more effective in separating fine dust fractions than water film cyclones.
Thus, it is appropriate to use a high-speed washer for cleaning dusty air in exhaust systems: in the process of separating fine dust fractions, centrifugal action and controlled irrigation of the walls are decisive. The system is conveniently coordinated with a fan so that the cleaned air is steadily removed without repeated aerosol removal.
Dust deposition occurs under the action of centrifugal forces and water irrigation. The advantage of a SIOT class high-speed washer is that part of the water supplied by nozzles forms a uniform film on the walls, and the movement of the air flow is stabilized — This is how the device provides gas purification processes with high performance.
Advantages
The advantage of high-speed washers of the SIOT class over a wet-film dust collector of the CVP class is that dust contamination is removed by washing the volume with water.
An additional advantage of high-speed washers of the SIOT class is the ability to work with various types of dust in limited dimensions, without reducing the efficiency of collection on wet walls and without complicating the service of the bottom and drain lines.
Due to the compact geometry and direct-flow scheme of the SIOT type, the washers demonstrate high efficiency, they are easy to install in existing aspiration installations, and the prices for cyclones and washers are formed transparently — from standard models to individual designs.
Field of application
High-speed washers of the SIOT class are in demand for cleaning dusty air from wettable dust of various types in exhaust ventilation units and aspiration systems. The exception is fibrous cementing dust and condensation aerosols.
Such washers are recommended for cleaning dusty environments in aspiration units of workshops: they can be installed before or after the cyclone, coordinating the water pressure and air capacity with the fan.
SIOTs are in demand for cleaning dusty air in exhaust ventilation units in the food and other industries. SIOT washers operate in cyclone systems, where air purification is performed in stages, and washing ensures the removal of dust fractions that are wetted.
Operation features
The SIOT class washer is installed on a metal base. The distance from the floor to the lowest point of the bottom should be two and a half meters. Installation of washers on the ceilings of industrial buildings is allowed. It is recommended to install them in front of the fan (suction mode) and be sure to provide water drainage from the lower part of the fan casing.
During installation, it is important to comply with the requirements of the passport: ensure access to the bottom and walls for service, provide a drain line, as well as a tight connection to the fan and cyclone units for a stable cleaning mode.
The SIOT class washer is installed in accordance with the operating instructions: the height from the floor to the lowest point of the bottom should be maintained, the tightness of the inlet pipe should be checked and water drainage from the fan casing should be provided. If necessary, you can buy in Ukraine or arrange delivery for «at the price of the minimum standard size». We also provide consultations on the selection of a cyclone washer and compatibility with cyclones in the existing network.
