Patent ID: 7736601
Filing Date: 2010-06-15
Classification: B01D,F28D,F28F

Abstract:
1. Apparatus for catalytic cleaning, particularly de-nitrification of waste gases, said apparatus comprising a heat exchanger for exchanging heat between the already cleaned gas and the raw gas to be cleaned, a heating channel for supplying additional heat to the raw gas, a jetting unit provided in the heating channel for supplying ammonia and an arrangement of catalysts containing catalysts, which is attached to the heating channel and is placed above the heat exchanger, said arrangement of catalysts and said heating channel being connected with each other via an essentially U-shaped deflection hood, and wherein the heat exchanger is a heat exchanger working in counter flow, wherein the heating channel is attached to the deflection hood and the heat exchanger via compensators to compensate for thermal delay, wherein at least one mixing unit is provided in the heating channel for mixing of the flue gas with the supplied ammonia, wherein the mixing unit is at least one flow assembly in the share of a vortex surface, and wherein at least one flow assembly in the form of a vortex surface is provided in the deflection hood for developing a uniform flow profile of the flue gas.