The working principle of industrial vacuum cleaner noise is: after the gas containing dust gas enters the tuyere from the upper part of the ash hopper, under the action of the wind baffle, the air flow moves, the flow speed is reduced, and some large particles of dust are separated into the ash hopper due to the action of inertial force. The dust-containing gas enters the Chinese box through the filtration and purification of the filter bag, the dust is blocked outside the filter bag, and the purified gas enters the upper box through the filter bag mouth, and then has an outlet to discharge. With the continuous increase of dust on the surface of the filter bag, the inlet and outlet pressure of the bag dust removal equipment is also rising. When the resistance of the dust collector reaches the set value, the control system will issue a dust cleaning command, and the dust cleaning system will start to work. At first, the solenoid valve starts to start after receiving the signal, so that the compressed air in the upper air chamber of the small diaphragm is removed. Due to the change of the force on both ends of the small diaphragm, the exhaust channel closed by the small diaphragm is opened. The compressed air in the upper air chamber of the large diaphragm is removed through this channel, and the force on both ends of the large diaphragm also changes, making the large diaphragm move. The closed output inlet is opened, the compressed air in the air bag is sprayed into the bag through the output tube and the spray pipe, and the function of dust cleaning is realized. When the control signal stops, the solenoid valve is closed, the large and small diaphragm are reset successively, and the spray stops.

The pressure of industrial vacuum cleaner noise is determined according to the process requirements and the static pressure of the fan, and the design of the equipment is determined according to the pressure of the normal use of industrial vacuum cleaner noise. The shell should have sufficient compressive strength. Because the dust collector is mostly operated under negative pressure, the wall plate is often sunken due to insufficient stiffness of the shell, and it is thumping when the pressure is released. The pressure strength of the dust collector should be greater than the total pressure value of the fan. As an industrial vacuum cleaner noise for general use, the equipment is not afraid of pressure of 4000 ~ 5000Pa, for the long bag pulse dust collector is generally 6000 ~ 8000Pa, for the use of Roots blower as the power of negative pressure type air conveying device, The design of the dust collector is not afraid of pressure of 15 ~ 50kPa. In addition, some such as blast furnace gas dry process industrial vacuum cleaner noise, its design is not afraid of pressure requirements of 0.3MPa or, the equipment is generally designed to be round, the dust collector shell and ash bucket wall thickness is not less than 5mm, the thickness of the reinforcement plate is not less than 6mm, and the thickness of the matching flange is not less than 10mm. All continuous welds of the dust collector should be flat and straight, and welding defects such as virtual welding and false welding are not allowed. The height of the weld should meet the design requirements, and the kerosene leakage test should be carried out. The box and ash hopper are welded continuously, and the strength and tightness of the welding meet the corresponding industry standards to achieve the requirements of not afraid of pressure and reduce the air leakage rate of the equipment body.

industrial vacuum cleaner noise Inspection before installation:

1. Inspection of the main body

The dust collector has been quality inspection and no-load operation when leaving the factory, and the performance meets the factory requirements. However, in the disassembly and transportation process, collision may occur, so that the equipment deformation, timely correction processing, otherwise it will affect the performance of the equipment. For example, when the box wall is bent and deformed, air leakage is increased after production; When the capping device of the industrial vacuum cleaner noise is deformed, it is difficult to open after putting into operation, which affects the operation and use.

2. Inspection of filter bag and frame

The quality of filter bag directly affects the dust removal rate and maintenance workload. Therefore, before installation, we should strictly check whether the joint of each filter bag is strong, whether there is off-line or broken line, and whether there is damage.

The filter bag frame is the skeleton that supports the filter bag, and its processing quality is an important factor that directly affects the service life of the filter bag, and it is strictly checked. If there are burrs, welding slag, to polish; If there is deformation, to straighten; If the weld is off, mend it.

3, ash discharge device inspection

The ash discharge device is located in the lower box of the dust collector, which is composed of a motor, a turbine reducer and a spiral ash discharge valve. The reducer should be checked before installation, if there is sand debris found, disassemble and clean, turn by hand after assembly, when flexible, and then fill the lubricating oil to the calibrated oil level before use. The spiral in the lower box is clear of the debris in the box before running, and then rotate the spiral by hand, such as flexible rotation, frictionless sound is qualified. If the spiral blade is found to have friction with the box, it should be treated in time, and the active baffle of the ash discharge valve should be rotated flexibly. When assembling the motor and reducer, the output shaft and the corresponding input shaft should be kept concentric to operate normally.

4. Check the injection system

The injection system consists of an air bag, a control valve, a pulse valve, and a blowpipe. The quality of its processing directly affects the cleaning effect and the consumption of compressed air, so it requires careful inspection of its various components.

5. Check the controller

The controller (electronic control, air control, machine control) should be checked and debug-ed before installation, and installed when no problem is confirmed after debugging.

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