Multi-channel composite electromagnetic filter dust-removing device

Abstract

The invention discloses a multi-channel composite electromagnetic filter dust-removing device. The device comprises a dust remover cylinder, a coil and a filter layer structure. The device is characterized in that the interior of dust remover cylinder is provided with the filter layer structure, a part, closely attached to the bottom of the filter layer, of the dust remover cylinder is detachablyprovided with a porous filter piece, and a flow limiting plate for controlling airflow flux is arranged in a position located above the filter layer; and the coil is arranged on the periphery of the dust remover cylinder, and the coil covers the outer side position of the filter layer structure. The device provided by the invention can improve dust removal efficiency and improve dust removal effects through a composite dust removal structure; and the device can enhance gas-solid two-phase contact and reduce resistance during mass transfer, and a porous magnetic material in the present application is in a fluidized state in the process of dust removal, so that an influence of bubbling on the mass transfer process is reduced.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a multi-channel composite electromagnetic filter and dust removal device. Background technique [0002] Flue gas dedusting, the soot produced by the combustion process of fuel and other substances, as well as the soot produced by mechanical processes such as crushing, screening and conveying of solid materials, dust removal is the process of separating these particles from the soot and capturing and recycling them . [0003] The dust removal effect of the current dust removal technology is poor, one reason is that dust removal requires a filter device, and after the filter device is installed, it will greatly affect the passability of the dust-containing gas, resulting in a greatly reduced dust removal efficiency of the flue gas. The second reason is that the filter device is generally With a multi-hole structure, the pore size is too small, which will affect th...

AI Technical Summary

Problems solved by technology

[0003] The dust removal effect of the current dust removal technology is poor, one reason is that dust removal requires a filter device, and after the filter device is installed, it will greatly affect the passability of the dust-containing gas, resulting in a greatly reduced dust removal efficiency of the flue gas. The second reason is that the filter device is generally With a multi-hole structure, the pore size is too small, which will affect the gas passage, and it is easy to be blocked by smoke and dust. If the pore size is too large, the dust removal effect will be significantly reduced, and the isolation of smoke and dust will be reduced; and the production cost and maintenance cost of complex equipment Both are relatively high, and smaller companies cannot afford the high costs, so they choose to smuggle emissions, and environmental governance is more difficult

[0004] At present, some use magnetism to remove dust, but the general principle is to make the dust-laden gas pass through the magnetic field. The dust removal efficiency of this method is extremely slow. The reason is that the dust-laden gas needs to pass through slowly. The smoke and dust will be taken away, the smoke and dust will be blocked at the exhaust port, and it will be blocked. Frequent cleaning is required to ensure the normal progress of dust removal. This is very unrealistic in actual production. Enterprises need to invest in such equipment to operate A large amount of manpower is used to maintain the operation, which cannot meet the requirements of use. The processing is fast, but the cleanliness of dust removal is not enough, and the air outlet is easy to be blocked. If the processing is slow, the efficiency cannot keep up. The two are very contradictory

And because the dust removal is continuous, in the actual dust removal, it is necessary to install complicated equipment to control the flow rate of the flue gas. In this way, it leads to more auxiliary equipment, a longer equipment chain, and more difficult maintenance.

And the effect is not ideal

Images