A SCR denitrification multi-layer catalyst carrying transmission system and its working method

Abstract

The invention discloses a multi-layer catalyst bearing transmission system for SCR denitration and a working mode thereof. The multi-layer catalyst bearing transmission system comprises a denitrationbox body, a rotating motor, a connecting shaft, gear plates, chain cables, movable loads, translating rails and a two-way motor, wherein the denitration box body is divided into a smoke inlet and a smoke outlet; the rotating motor is arranged at one side of the exterior of the denitration box body; the connecting shaft is arranged on the rotating motor; the gear plates are arranged at two sides and the middle position of the connecting shaft; each chain cable is arranged on a gear plate; chain cables are vertically arranged in the denitration box body; the translating rails are arranged at twoopposite sides of the denitration box body and equidistantly arranged in the vertical direction of the denitration box body; the movable loads are arranged on the translating rails, and can move up,down, left and right in the denitration box body; and the two-way motor is arranged at the outer side of the denitration box body; and the shaft of the two-way motor is aligned with the translating rails. Through change of a multi-layer catalyst position, the multi-layer catalyst bearing transmission system provided by the invention improves the effect of denitration, reduces the replacement frequency of a catalyst, and lowers the cost of production.

Description

technical field [0001] The invention belongs to the technical field of SCR denitrification, and in particular relates to a multilayer denitrification device, more specifically, an SCR denitrification multilayer catalyst carrying transmission system and its working mode. Background technique [0002] SCR is the abbreviation of Selective Catalytic Reduction, that is, selective catalytic reduction technology. This technology has the advantages of no by-products, no secondary pollution, simple device structure, removal efficiency of over 90%, reliable operation and convenient maintenance, etc., and is widely used in denitrification projects. The SCR denitrification process is mainly composed of SCR catalytic reactor, ammonia gas injection system, flue gas bypass system, ammonia storage and preparation system, etc. The SCR catalytic reactor is generally arranged in a high-dust arrangement, that is, it is arranged in the high-temperature flue between the economizer and the air pr...

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Problems solved by technology

[0003] In the denitrification process of the SCR catalyst, in order to make the reaction complete, the multi-layer method of 2+1 or 3+1 is usually adopted. The catalyst near the flue mouth is consumed quickly, and a lot of soot is accumulated to affect the function of the catalyst. When replacing the new catalyst, the catalyst that does not fully react will be wasted and the production cost will be increased.

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