Device for purifying, treating and utilizing combustion furnace tail gas

Abstract

The invention provides a device for purifying, treating and utilizing combustion furnace tail gas. The device comprises a heat exchange chamber and is characterized in that the outer surface of the heat exchange chamber is covered with heat preservation cotton; a bent coiled pipe is arranged in the heat exchange chamber; a gas inlet is formed in the left end of the coiled pipe; a casing pipe is sleeved outside the coiled pipe; a plurality of heat exchange leakage holes are uniformly formed in the surface of the casing pipe; a water distribution plate is arranged in the heat exchanger chamber; a plurality of nozzles are arranged at the bottom of the water distribution plate; the right end of the coiled pipe is communicated with a pressurizing pipe; a pressurizing fan is mounted on the pressurizing pipe; a cyclone separator is mounted at the right end of the pressurizing pipe; a conveying pipe is arranged at the top of the cyclone separator; a filtering box is mounted on the conveying pipe; a plurality of filtering screens are arranged in the filtering box. According to the device, the combustion furnace tail gas with characteristics of high temperature and high heat is capable of heating the casing pipe in the coiled pipe and exchanging heat with running water; the bent coiled pipe is capable of prolonging the staying time of the tail gas in the heat exchanger, so that the running water can be fully heated; higher heat transfer efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of environmental protection machinery and equipment, in particular to a device for purification, treatment and utilization of exhaust gas from a combustion furnace. Background technique [0002] Combustion furnace, electric arc combustion furnace, also known as carbon-sulfur combustion furnace, or electric arc furnace for short, uses a high-voltage, high-frequency oscillating circuit to form an instantaneous large current to ignite the sample, and the mixed gas produced after the sample burns rapidly under oxygen-enriched conditions. The chemical analysis program is an equipment that can quantitatively and quickly analyze the carbon and sulfur content in the sample. It is the crystallization of many years of hard work by Chinese physicists. [0003] The combustion furnace will produce a large amount of tail gas during the combustion of fuel. As an additional product generated during the combustion reaction, ...

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Problems solved by technology

[0003] The combustion furnace will produce a large amount of tail gas during the combustion of fuel. As an additional product generated during the combustion reaction, the tail gas has the characteristics of high heat. Therefore, the utilization of the combustion furnace tail gas is a major trend at present. In the combustion furnace tail gas Contains more toxic and harmful substances such as carbon monoxide and sulfur dioxide, and inhalable particulate matter such as dust particles. The existing combustion furnace tail gas treatment device has an unsatisfactory heat recovery effect on the tail gas, and the heat transfer efficiency is low. The purification effect on the combustion furnace tail gas is relatively low. Difference

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