Flue gas cooling and dust-removal equipment

Abstract

The invention provides flue gas cooling and dust-removal equipment. The flue gas cooling and dust-removal equipment comprises a furnace body, an air inlet formed in the left side wall of the furnace body, and an ash hopper positioned at the bottom end of the furnace body, wherein a connecting pipeline is connected on the air inlet; a cooling box is arranged at the left side of the furnace body; the right end of the cooling box communicates with the furnace body through the connecting pipeline; the left end of the cooling box is connected with an air inlet pipeline; a circulating water tank isarranged below the air inlet pipeline; the top end of the circulating water tank is connected with a water outlet tube; the right end of the circulating water tank is connected with a water inlet tube; a cooling water tube is arranged at the right side of the circulating water tank; the cooling water tube perpendicularly passes through the top end and the bottom end of the cooling box; the middlesection of the cooling water tube is positioned inside the cooling box; and upper and lower ends of the cooling water tube are separately connected with the water outlet tube and the water inlet tube.The cooling water tube is arranged, so that flue gas in the cooling tank transmits heat to condensed water to achieve the cooling effect, the temperature of flue gas which enters the furnace body isreduced, and the service life of the furnace body is prolonged.

Description

technical field [0001] The invention relates to the technical field of boiler equipment, in particular to a flue gas cooling and dust removal equipment. Background technique [0002] During the combustion of boiler fuel, a large amount of flue gas will be produced. Flue gas is a mixture of gas phase substances and solid phase substances. The gas phase substances mainly include carbon dioxide, sulfur dioxide, etc., and the solid phase substances are soot. Gray or even black will block the boiler, so dust removal is required. Common boiler dust removal equipment includes mechanical dust collectors, filter dust collectors, etc. Boiler fuels also emit a lot of heat during the combustion process. Although in the dust removal process, dust removal equipment also has high temperature resistance. However, the high-temperature flue gas will still reduce the service life of the dust removal equipment, and it is more likely to cause safety problems such as explosions. It is very necess...

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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a flue gas cooling and dust removal equipment, which solves the problem that the service life of the dust removal equipment is reduced due to the high-temperature flue gas discharged from the boiler. The present invention adopts the following technical solutions to solve the technical problems: including furnace Body, the air inlet located on the left side wall of the furnace body and the ash hopper located at the bottom of the furnace body, the air inlet is connected with a connecting pipe, the left side of the furnace body is provided with a cooling box, and the right end of the cooling box is connected to the The pipeline communicates with the furnace body, the left end of the cooling box is connected with an air inlet pipe, a circulating water tank is arranged under the air inlet pipe, the top of the circulating water tank is connected with a water outlet pipe, the right end of the circulating water tank is connected with a water inlet pipe, and the right side of the circulating water tank is provided with a cooling The number of water pipes and cooling water pipes is determined according to the size of the cooling box. The cooling water pipes pass through the top and bottom of the cooling box vertically. The middle section of the cooling water pipe is located inside the cooling box. connected

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