Combined device for denitration of high-temperature flue gas and use method of combined device

Abstract

The invention discloses a combined device for denitration of high-temperature flue gas and a use method of the combined device, and relates to the technical field of environmental protection. The device comprises a recycling assembly, the recycling assembly comprises a recycling box and a water tank, the water tank is located on one side in front of the recycling box, a deslagging box and a reaction box are arranged on one side of the recycling assembly, anti-blocking assemblies are arranged on the two sides of the upper surface of the deslagging box, and a convection assembly is arranged on one side of a partition plate; catalyst plates are uniformly mounted on the other side of the partition plate from bottom to top at intervals, and a mixing assembly is arranged in the center of the bottom of the reaction box. The heat exchange efficiency is improved through the recovery assembly, loss of heat during pipeline transportation is reduced, meanwhile, smoke particles in high-temperature smoke are filtered out through the slag removal box and the anti-blocking assembly, and the situation that due to the fact that a filter screen is blocked, the working efficiency is reduced, and the effective filtering effect cannot be achieved is avoided; flue gas and ammonia gas are fully mixed and reacted through the reaction box, the convection assembly and the mixing assembly, so that the denitration efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a combined device for high-temperature flue gas denitrification and a method for using the same. Background technique [0002] With the development of science and technology and society, various industries are developing rapidly. In the development of modern industrial production, due to the flue gas that pollutes the environment in various industrial production, the nitrogen oxides produced in it will cause chemical damage under the action of sunlight. It reacts to form photochemical smog and causes serious air pollution. Therefore, it is necessary to strictly control the emission of flue gas in the industrial production process, and it is necessary to carry out desulfurization and denitrification treatment. [0003] After retrieval, publication number CN210097399U, application date 2019.11.22 discloses a combined multi-stage chemical flue gas denitr...

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Problems solved by technology

[0006] 2. The above-mentioned combined multi-stage chemical flue gas denitrification device filters and collects the soot particles in the high-temperature flue gas through the slag collection device during use, and this method of filtering will easily cause the through-holes on the geotextile to be blocked, resulting in The filtration rate of high-temperature flue gas slows down, and the effective filtration effect cannot be achieved;

[0007] 3. The above-mentioned combined multi-stage chemical flue gas denitrification device makes the flue gas and ammonia react more fully by rotating the stirring rod during use, and this method will also accelerate the flow rate of flue gas and ammonia, which may cause smoke Insufficient reaction between ammonia gas and ammonia gas, resulting in poor denitrification effect

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