Efficient purification and exhaust system for flue gas

Abstract

The invention discloses an efficient purification and exhaust system for flue gas. According to efficient purification and exhaust system, the problems of energy waste and low purification efficiencyof the flue gas in the prior art are solved. The efficient purification and exhaust system comprises high-temperature flue gas conveying pipelines, a heat exchanger, a cooling and dedusting pool, an alkaline water pond and a high-altitude exhaust smoke bin, wherein the heat exchanger comprises a heat exchanger casing, a flue gas inlet pipe, an air outlet pipe, a flue gas outlet pipe, an air inletpipe and a heat exchange pipeline; the heat exchanger casing is of a dual-layer structure; the cooling and dedusting pool is provided with a dust removing pipe, a conical dust removing top cover, a waste gas outlet pipe and an ultrasonic generator; the ultrasonic generator generates ultrasonic waves for vibrating and scattering flue gas bubbles, so that the flue gas can make contact with dust removing water more sufficiently and further full cooling and purification are realized. The efficient purification and exhaust system disclosed by the invention has the advantages of simple structure, scientific and reasonable design, convenience in use and high purification efficiency of the flue gas; high-temperature flue gas and combustion supply gas at the combustion stage are subjected to heat exchange, so that energy can be effectively saved; meanwhile, the flue gas is subjected to cooling and dust removal as well as removal of harmful substances, so that pollution to atmosphere during exhaust is avoided.

Description

technical field [0001] The invention relates to an efficient flue gas purification and discharge system. Background technique [0002] Before the flue gas is discharged, it needs to be treated so that the discharged flue gas meets the high-altitude emission standards, so that it will not pollute the atmospheric environment. After the flue gas comes out of the combustion section. It also contains a lot of heat. The existing technology directly purifies the high-temperature flue gas from the combustion section and then discharges it. The heat brought out by the high-temperature flue gas is wasted, wasting energy, and a large amount of heat is discharged at the same time. , causing adverse effects on the environment, and the efficiency of flue gas purification is low. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-efficiency flue gas purification and discharge system to solve the problems of energy waste an...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-efficiency flue gas purification and discharge system to solve the problems of energy waste and low flue gas purification efficiency in the prior art

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