Coal-gangue decarburizing system

Abstract

The invention discloses a coal-gangue decarburizing system, which comprises a cooling fan, a first-stage quench tower, a first-stage separator and a decarburizing furnace, wherein the first-stage quench tower is connected with an air outlet of the cooling fan, the first-stage separator is connected with an air outlet of the first-stage quench tower and is provided with a first-stage blanking pipe, the decarburizing furnace is directly connected with an air outlet of the first-stage separator, and an air outlet of the decarburizing furnace is sequentially connected with N stages of cyclone barrels; and a coal-gangue feeding pipe is arranged between an Nth-stage cyclone barrel and an N-1th-stage cyclone barrel, a first blanking pipe is arranged between a first-stage cyclone barrel and the first-stage quench tower, a second blanking pipe is arranged between a second-stage cyclone barrel and the decarburizing furnace, and a third blanking pipe is arranged between an Mth-stage cyclone barrel and an M-1th-stage cyclone barrel, wherein 3<=N<=6, 3<=M<=N, and both the N and the M are positive integers. Through the coal-gangue decarburizing system, not only can the carbon content of coal gangue be decreased, but also other ores do not need to be doped, thereby the damage to an ecological environment is reduced, and potential safety hazards are reduced.

Description

technical field [0001] The invention relates to a decarbonization system, in particular to a coal gangue decarbonization system. Background technique [0002] Ceramsite is the abbreviation of lightweight aggregate for man-made buildings. Ceramsite has a series of excellent properties. It is widely used in high-rise, super high-rise buildings and long-span construction projects due to its light weight, heat preservation, heat insulation, sound insulation and high strength. It can not only reduce the weight of the building, but also has good earthquake resistance. At the same time, the construction adaptability of ceramsite concrete is strong, and it is easy to bond with the stucco material. Because of its heat resistance, frost resistance, acid and alkali resistance, anti-corrosion and low thermal expansion coefficient, ceramsite is also widely used as pavement materials for highways and airport runways, and can also be used as thermal insulation, sound insulation, heat insu...

AI Technical Summary

Problems solved by technology

The main solution at this stage is to add a large amount of ore such as clay and shale to reduce the carbon content of the material. It is inevitable to need to dig mountains and rivers to get sand, which will seriously damage the ecological environment.

In addition, when ceramsite fired from coal gangue is used as wall insulation material, the lower the carbon content, the better. However, the traditional mixing method can only reduce the carbon content, but cannot remove carbon, resulting in a certain degree of inefficiency during use. Security risks

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