Powder dust adsorbing device

Abstract

The invention relates to a dust absorption device, which is especially suitable for absorbing the dust of electric welding soot with the grain diameter less than 15 millimeters. The device comprises a plurality of layers of flatbed typed filter screens or / and rippled filter screens with different meshes that are placed inside the frame in an overlapped way and made of stainless material; the periphery of each layer of flatbed typed filter screens or / and rippled filter screens are mutually overlapped via a U-shaped connecting component; a pressure frame is arranged between an upper frame and the U-shaped connecting component, and the pressure frame tightly presses the U-shaped connecting component via a plurality of adjustment bolts arranged on the upper frame; wherein, the outer layers ofthe plurality of layers of filtration screens are provided with strengthened filtration screens respectively. The multilayered overlapped combination of 400 to 1200 meshes forms larger spacing, whichenlarges the filtration area and reduces the initial resistance of the device. The invention has the advantages of simple structure, large dust absorption amount within average area and high purification efficiency. Meanwhile, the filtration screens are made of stainless material, which has the advantages of anticorrosion, easy cleaning and maintenance and long service life, so that the operatingcost is low, the energy consumption is low and the effect of energy conservation is remarkable.

Description

technical field [0001] The invention relates to a dust adsorption device, in particular, it is installed on the inlet of the exhaust pipe of the air purification equipment, and is a device for adsorbing and filtering the air polluted by dust, and is especially suitable for absorbing the dust whose particle size is less than 15 microns in the electric welding smoke . Background technique [0002] In the manufacture of large-scale equipment, the welding workload is very heavy, especially electric welding, which will produce a large amount of harmful gas and dust accordingly, polluting the environment and endangering the health of its operators. Many large-scale enterprises are committed to the control of welding fume, such as Donaldson in Germany. In this type of treatment device, high-efficiency adsorption units are generally used to remove harmful gases and dust in the environment through a powerful suction system. Filter and purify. Existing adsorption devices have bag-ty...

AI Technical Summary

Problems solved by technology

The existing adsorption devices have bag-type and filter-cartridge-type structures, which are filled with porous materials or cores made of chemical fibers. Obviously, these materials have poor chemical stability, are easy to corrode, have short service life, are difficult to maintain and clean, and cannot even be reused.

When running, and its own resistance is large, the suction power system consumes a lot of energy, and the dust holding capacity per unit area is small, so the operating cost is high

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