Integrated dust collection, desulfurization, denitrification and waste heat recovery system

Abstract

Provided is an integrated dust collection, de-SOx, de-NOx, and waste heat recovery system. The integrated dust collection, de-SOx, de-NOx, and waste heat recovery system includes: an integrated filtration module for performing dust collection, de-SOx, and de-NOx processes in exhaust gas within a combustion furnace; a de-SOx reactor disposed on a front end of the integrated filtration module to perform the de-SOx process in a sulfur oxide within the exhaust gas; and a heat exchanger disposed at a rear end of the integrated filtration module. A filtration bag is disposed inside the integrated filtration module. The integrated dust collection, de-SOx, de-NOx, and waste heat recovery system may include the integrated filtration module which integrally performs the dust collection, de-SOx, and de-NOx processes in the exhaust gas at the same time, the de-SOx reactor disposed on the front end of the integrated filtration module to primarily perform the de-SOx process in the sulfur oxide; and the heat exchanger disposed at the rear end of the integrated filtration module to improve efficiency in removing contaminants by using high-temperature heat within the exhaust gas discharged from the combustion furnace.

Description

technical field [0001] The invention relates to an integrated dust collection, desulfurization, denitrification and waste heat recovery system, in particular to a system capable of using an integrated filter module to simultaneously and comprehensively carry out dust collection, desulfurization and desulfurization on exhaust gas discharged from a combustion furnace Nitrogen, and an integrated dust collection, desulfurization, denitrification and waste heat recovery system that can effectively utilize the waste heat of the exhaust gas passing through the integrated filter module. Background technique [0002] In industrial plants that use a lot of energy, various combustion equipment, such as power generation boilers, incineration boilers, etc., are used to obtain energy such as electricity and steam. An air pollution control system must be installed behind the combustion equipment to remove air pollutants such as dust, sulfur oxides, nitrogen oxides, etc. generated during th...

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Problems solved by technology

However, this air pollution control system has problems in that heat energy at 300°C is not recovered and is discharged outside, and a catalyst for denitrification in the SCR is contaminated with highly concentrated dust, thereby reducing the life cycle of the catalyst.

However, this denitrification and desulfurization reactor has a problem in that since the recovered waste heat is supplied to the plasma reactor to allow the plasma reactor to supply plasma to the SCR for denitrification and desulfurization, the combustion The high temperature heat discharged from the furnace cannot be directly transferred to the SCR

However, in the method and apparatus for removing pollutants, instead of using waste heat, electron beams are used, so the use of waste heat is not sufficiently considered.

[0006] The prior art including the above-mentioned patent document describes a technique of collecting dust, desulfurization, and denitrification of the exhaust gas by using an air pollution control system after discharging the exhaust gas from the combustion furnace, but does not describe a technique, so The above technology utilizes one unit module to comprehensively collect dust, desulfurize, and denitrify exhaust gas, and does not describe using waste heat of exhaust gas discharged from a combustion furnace to desulfurize and denitrify said exhaust gas, and then recover said waste heat

Therefore there is the problem that the technical configuration of prior art is somewhat insufficient

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