An environment-friendly sulfuric acid production flue gas treatment device

Abstract

The invention relates to an environment-friendly sulfuric acid production flue gas treatment device, which includes a ventilation frame, a connecting pipe, a detachable device, and an anti-blocking screening hole assembly. The left end of the ventilation frame communicates with the connecting pipe, and the upper end of the ventilation frame is provided Block the screening hole assembly, and a detachable device is installed at the right end of the anti-blocking screening hole assembly. The invention can solve the problem that the filter holes are easily blocked when the mineral dust is removed, and the number of normally filtered holes is reduced to reduce the filtration efficiency. After working for a period of time, part of the mineral dust is easy to accumulate on the surface of the filter device, resulting in the failure of the device. For problems such as increased load, through the enlarged aperture and the auxiliary push down of the push plate, the clogged mine dust can be dredged and dropped, and the filter can be detached at any time, which facilitates regular cleaning and replacement of the filter. The detachable device can be removed at any time The anti-blocking screening hole is taken as a whole, which is convenient for cleaning, reduces the possibility of a large amount of mine dust accumulating on the detachable device, and avoids the increase of the load of the device.

Description

technical field [0001] The invention relates to the field of flue gas treatment, in particular to an environment-friendly sulfuric acid production flue gas treatment device. Background technique [0002] Sulfuric acid production adopts the contact sulfuric acid production process with pyrite as raw material. Its main processes include roasting of pyrite, purification of furnace gas, drying of gas, conversion of sulfur dioxide and absorption of sulfur trioxide. During the production process, The furnace gas from the waste heat boiler contains a large amount of mineral dust, which needs to be removed. However, the existing mineral dust removal often has the following defects: 1. When the mineral dust is removed, it is easy to block the filter holes , the number of holes for normal filtration is reduced, thereby reducing the filtration efficiency; 2. After working for a period of time, some mineral dust is easy to accumulate on the surface of the filter device, resulting in an ...

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Problems solved by technology

[0004] The invention can solve the problem that the filter holes are easily blocked when the mineral dust is removed, and the number of normally filtered holes is reduced to reduce the filtration efficiency. After working for a period of time, part of the mineral dust is easy to accumulate on the surface of the filter device, resulting in the failure of the device. Problems such as increased load

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