Heat pipe type coal dry distillation furnace with self-quenching coke function

Abstract

A heat pipe coke-selfquenching retort furnace for powder coal is suitable for powder coal, such as non-caking coal, lean coal and brown coal; the purpose is to incorporate the destructive distillation and the coke quenching and to reduce the cost of construction; the invention comprises a furnace roof board, a hydraulic seal, a gas blast chamber, a heating chamber, a heat pipe, a dry-run chamber, a cooling chamber and a coke quenching chamber; the heating chamber, the dry-run chamber, the cooling chamber and the coke quenching chamber are all concentric loop arrangement; the heating chamber and the dry-run chamber lie on the upper furnace body while the the cooling chamber and the coke quenching chamber lie on the lower furnace body, in which the dry-run chamber and the coke quenching chamber are all two layers containing the inside and the outside, the inside and the outside of the dry-run chamber are separately cross-connected with the inside and the outside of the coke quenching chamber; the heating chamber is between the inside and the outside of the dry-run chamber, while the cooling chamber is between the inside and the outside of the coke quenching chamber; a partition panel is placed between the heating chamber and the cooling chamber; between the heating chamber and the dry-run chamber and between the coke quenching chamber and the cooling chamber, there are heat pipes placed, the absorption heat ends of the heat pipes are respectively placed in the heating chamber or the coke quenching chamber, while the heat-delivery end the heat pipes are respectively placed in the dry-run chamber or the cooling chamber.

Description

technical field [0001] The invention relates to a dry distillation furnace for flour coal. Background technique [0002] At present, domestic retort furnaces generally use refractory material furnace walls for heat transfer, which has a single structure, low heat transfer efficiency, and large heat energy consumption. It is difficult to separate out gas during dry distillation of surface coal, and limited by the low thermal conductivity of refractory bricks, the volume of retort chambers is small. , low production capacity. There are also foreign countries that use the principle of "fluidized bed" to carry out dry distillation of flour coal, but this process has stricter requirements on the particle size of flour coal. And no matter what kind of process, coke must be quenched after dry distillation, usually water coke quenching and then drying, which increases process facilities, increases construction investment, and pollutes the environment. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic retort furnaces generally use refractory material furnace walls for heat transfer, which has a single structure, low heat transfer efficiency, and large heat energy consumption. It is difficult to separate out gas during dry distillation of surface coal, and limited by the low thermal conductivity of refractory bricks, the volume of retort chambers is small. , low production capacity

There are also foreign countries that use the principle of "fluidized bed" to carry out dry distillation of flour coal, but this process has stricter requirements on the particle size of flour coal

And no matter what kind of process, coke must be quenched after dry distillation, usually water quenching and then drying, which increases process facilities, increases construction investment, and pollutes the environment

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