Tail gas nitrogen oxide concentration detection device of oxidized pellet rotary kiln

Abstract

The invention relates to the technical field of gas detection equipment, and discloses a tail gas nitrogen oxide concentration detection device of an oxidized pellet rotary kiln. The tail gas nitrogenoxide concentration detection device comprises a case, wherein a top opening is formed in the middle of the top end of the case, a top cover is movably connected to the top part of the case, and a connecting block is fixedly sleeved with the top cover. According to the tail gas nitrogen oxide concentration detection device of the oxidized pellet rotary kiln, through the arrangement of the top opening, a side opening, a fixing block and a rubber fixing sleeve, when the rubber fixing sleeve is taken out of the outer surface of the fixing block, the fixing effect between the machine box and thetop cover can be relieved, at the moment, an operator can pull a detection device body, so that a gas sensor body is separated from the interior of the case through the top opening, an operator can maintain the whole detection device body conveniently, meanwhile, the gas sensor body can be cleaned conveniently, the operation is easy and convenient, consumed time is short, and therefore the practicability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of gas detection equipment, in particular to a device for detecting the concentration of nitrogen oxides in exhaust gas of an oxidation pellet rotary kiln. Background technique [0002] Oxidation pellets are one of the important methods of powder ore agglomeration. First, powder ore is added with appropriate amount of water and binder to make green pellets with uniform viscosity and sufficient strength. After drying and preheating, they are roasted in an oxidizing atmosphere. Agglomerating raw pellets to make pellets is especially suitable for processing fine ore concentrates. Pellets have good cold strength, reducibility and particle size composition. [0003] At present, when enterprises use the oxidation pellet rotary kiln for processing and production, they often produce a large amount of waste gas. In order to analyze the concentration of nitrogen oxides in the waste gas, operators often install relevan...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a tail gas nitrogen oxide concentration detection device for an oxidation pellet rotary kiln, which has the advantages of convenient disassembly and maintenance and dust blocking, and solves the problem of the actual use of the existing nitrogen oxide concentration detection device. During the process, although it has a good detection function, it is not convenient for operators to disassemble and maintain it regularly, and a large amount of dust in the exhaust gas is easy to adhere to the gas sensor, which affects the accuracy of nitrogen oxide concentration detection and is prone to The problem of deviation

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