Kiln system containing tail gas treatment system

Abstract

The invention provides a kiln system containing a tail gas treatment system. The kiln system comprises a kiln, a dedusting device, at least one heat pump system and a wet dedusting device, wherein the dedusting device is used for carrying out dedusting treatment on introduced tail gas, the heat pump system is used for carrying out heat absorption and cooling treatment on the tail gas after dedusting treatment, and the wet dedusting device is used for carrying out dedusting treatment on the tail gas after being treated by the heat pump system; an air outlet of the dedusting device is connected with an air inlet of a heat absorption unit of the heat pump system, and an air outlet of the heat absorption unit of the heat pump system communicates with an air inlet of the wet dedusting device. The tail gas is subjected to primary dedusting by the dedusting device and then passes through the heat absorption unit of the heat pump system, a large quantity of heat in the tail gas is sucked out by the heat absorption unit of the heat pump system, the temperature of the tail gas suddenly drops and can be reduced below 55 degrees, dedusting water evaporation at the wet dedusting stage is avoided, sedimentation of dust in the tail gas and absorption of water after wet dedusting are facilitated, and the fog and haze phenomenon is eliminated.

Description

technical field [0001] The invention relates to a kiln system including a tail gas treatment system. Background technique [0002] In recent years, smog has become serious in some areas, and environmental problems have risen to a new height, which has had a serious negative impact on the national economy and people's livelihood. Energy conservation, emission reduction, and eradication of smog have become important livelihood projects and important measures advocated by the state and enterprises. With the development of industry, the emission of industrial tail gas is more serious. Usually, most of the industrial tail gas is directly discharged after simple treatment, which is far from meeting the environmental protection requirements. Common industrial exhaust gases include boiler exhaust, material preheating exhaust, etc. The temperature of these exhaust gases can reach several hundred degrees, and direct discharge not only causes waste of heat, but also causes great pollut...

AI Technical Summary

Problems solved by technology

Although this exhaust gas treatment system achieves heat recovery through heat exchange, the effect of water-cooled heat exchange is limited, and the exhaust gas has a relatively high temperature, so the heat of the exhaust gas above the normal temperature is wasted.

Moreover, when the tail gas with such a high temperature is dedusted by bag dust removal, it only eliminates the dust particles with a larger particle size in the tail gas, but cannot eliminate the PM2.5 particles in the exhaust gas, and the dust removal effect is limited. Haze doesn't work

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