Electrolysis zinc acid mist treatment device

Abstract

The invention belongs to the technical field of acid mist treatment equipment, and provides an electrolysis zinc acid mist treatment device. The electrolysis zinc acid mist treatment device comprises a tower body provided with an acid mist inlet pipe and an exhaust pipe arranged at the top of the tower body, a liquid storage chamber for storing alkaline liquid is arranged at the bottom of the tower body, the tower body is respectively provided with a liquid inlet pipe and a liquid outlet pipe which are communicated with the liquid storage chamber, the gas outlet of the acid mist gas inlet pipe is communicated with a gas distributor located below the liquid level of the alkaline liquid; the cavity of the tower body above the liquid storage chamber is provided with at least two levels of filler absorption sections in sequence, and the upper part of each filler absorption section is correspondingly provided with a spray pipe, the periphery of the spray pipe is provided with a plurality of atomizing nozzles communicated with the spray pipes, the inner cavity of the tower body is provided with a filler demisting section near the top; the bottom of the tower body is provided with a spray liquid supplying pipe communicated with the liquid storage chamber, the spray liquid supplying pipe is respectively communicated with the spray pipes through a liquid conveying pump. The electrolysis zinc acid mist treatment device improves the purifying effect on electrolysis zinc acid mist, and the emitted gas after treatment can reach higher emission standards.

Description

technical field [0001] The invention relates to the technical field of acid mist treatment equipment, in particular to an electrolytic zinc acid mist treatment device. Background technique [0002] In the process of hydrometallurgy, pure zinc is extracted by electrolysis, and acid mist will be generated during the electrolysis process; during the electrolysis process, for every mole of metallic zinc precipitated, 0.5 moles of oxygen and 1 mole of sulfuric acid will be generated, and oxygen Released from bottom to top in the electrolyte, the precipitation will generate bubbles on the surface of the electrolyte. Under the action of heat and the driving force of bubble rupture, the acidic electrolyte will produce acid mist gas. If the generated weak acid gas is directly discharged to The atmosphere will cause environmental pollution, and will cause harm to human health. [0003] The Chinese patent with the patent number 201320086223.5 discloses an electrolytic zinc acid mist s...

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Problems solved by technology

But we have found in practice that the electrolytic zinc acid mist spray acid mist removal tower of the above structure still has the following defects: 1. The acid mist purification is only realized through the spray pipe and the lye spray holes provided thereon, and the purification is not enough. Sufficient, the purification effect needs to be improved; 2. The exhaust port is directly set above the spray pipe, which has no demisting effect. There is a phenomenon that some acid mist and lye droplets are directly discharged into the atmosphere with the air flow, and the purification effect is not particularly good. ; 3, the structure of the tower body is not convenient for the installation of internal components, and the structure of each spray pipe arranged up and down successively, the lye sprayed by the upper spray pipe will directly affect the spray effect of the lower spray pipe, and then Affect the purification and absorption of acid mist

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