Internal heating type coking furnace for briquette coal cracking

Abstract

The invention relates to the technical field of industrial production equipment, in particular to an internal heating type coking furnace for briquette coal cracking, which comprises a preheating zone, a combustion zone and a maturation zone, wherein an ash filtering mechanism and an ash leaking mechanism are arranged on the inner side wall of the joint of the combustion zone and the maturation zone, and a sealing cover mechanism is arranged in the middle of the ash leaking mechanism. In working, the sealing cover mechanism moves upwards, briquetted briquette coal accumulated on the sealing cover mechanism and the ash filtering mechanism falls into the maturation zone, the ash leaking mechanism can be closed while the sealing cover mechanism moves upwards, so that ash formed by combustionof newly added pulverized coal cannot be mixed into coke in the maturation zone, the coke outlet door is closed, the coke pusher moves rightwards, when the coke pusher moves to a certain position, thecoke pusher does not abut against the bottom end of the cover sealing mechanism any more, the cover sealing mechanism drives the ash leaking mechanism to be opened in the downward moving process, ashaccumulated on the ash leaking mechanism falls onto coke in the maturation zone, the contact area between the coke in the maturation zone and air is reduced, excessive combustion is prevented, and resource waste is reduced.

Description

technical field [0001] The invention relates to the technical field of industrial production equipment, in particular to an internal heating coking furnace for briquette cracking. Background technique [0002] Briquette is made of pulverized coal as the main raw material, according to the ratio, mechanical strength, and shape required by the specific use, it is pressed and formed by mechanical processing, and has a certain strength, size and shape of different coal products; Scattered coal has higher combustion efficiency, thereby reducing energy waste. Generally, the particle size of coal briquettes is larger than that of loose coal, which can ensure the gap required for combustion, high combustion efficiency, and less exposed coal. Compared with raw coal, coal saving is 15%-20%. [0003] The briquettes are pyrolyzed at high temperature to produce coke, and other chemical products such as gas and coal tar can be recovered at the same time. However, some briquettes collide ...

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Problems solved by technology

[0003] The briquettes are pyrolyzed at high temperature to produce coke, and other chemical products such as gas and coal tar can be recovered at the same time. However, some briquettes collide with each other and crush each other during long-distance transportation to produce fine coal. The coal with a particle size of less than 6mm is called pulverized coal. At present, there are still many problems in the combustion of pulverized coal. For example, dust accumulation in the furnace affects the heat transfer efficiency. At the same time, pulverized coal burns rapidly in the coking furnace. Cracking and burning in the internal heating coking furnace, after the cracking is completed, it is pushed out intermittently by the coke pushing machine. Increased emissions of pollutants

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