Skid-mounted urea hydrolysis SCR denitration integrated system

Abstract

The invention discloses a skid-mounted urea hydrolysis SCR (Selective Catalytic Reduction) denitration integrated system which comprises a reducing agent preparation system, a tail gas component analysis system, a cyclone powerful mixing system, an SCR vertical reactor, a tail gas emission system and an electrical control system, the tail gas component analysis system is used for collecting and outputting diesel engine tail gas; according to the invention, tail gas and ammonia gas are premixed in the gas inlet flue and then enter a gas inlet of the SCR vertical reactor 5, and at the moment, fan blades which are driven by an explosion-proof motor and rotate at a high speed can strongly disturb a tail gas and ammonia gas mixer body, so that the tail gas and the ammonia gas are rapidly and uniformly mixed and enter a catalyst bed through the guidance of a guide plate; therefore, the tail gas and the ammonia gas are rapidly mixed, the mixing distance is effectively shortened, the mixing effect is good, the utilization rate of a catalyst is improved, the size of equipment is reduced, and the occupied area of the equipment is reduced.

Description

technical field [0001] The invention relates to tail gas treatment equipment, in particular to a skid-mounted urea hydrolysis SCR denitrification integrated system. Background technique [0002] In recent years, in most parts of our country, the weather with poor air quality has occurred more and more frequently, and smog weather has appeared in different periods in major and medium-sized cities across the country, seriously affecting people's production and life. On September 10, 2013, the State Council issued the Action Plan for Prevention and Control of Air Pollution (2013.9.10). It mentions accelerating the construction of desulfurization, denitrification, and dust removal renovation projects in key industries. Strictly implement the total amount control of pollutant discharge, and make whether the discharge of sulfur dioxide, nitrogen oxides, smoke dust and volatile organic compounds meet the total amount control requirements as a precondition for the environmental imp...

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Problems solved by technology

[0004] Diesel engine flue gas selective catalytic reduction denitrification device (CN 204247073 U) has announced a kind of diesel engine flue gas selective catalytic reduction denitrification device, but this equipment reductant and tail gas are mixed in the flue, and the mixing distance is longer, Moreover, the SCR reactor adopts a horizontal layout, the flow field is uneven, the utilization efficiency of the catalyst is not high, the overall floor area is large, it is not easy to install and maintain, and the denitrification efficienc

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