Coal decomposing equipment

Abstract

The invention discloses coal decomposing equipment, comprising a sealed kiln body with a feeding hole and a discharge hole, wherein the kiln body is provided with a flame gas pipe heating mechanism; coal propelling and decomposing channels are formed between the flame gas pipe heating mechanism and the inner wall of the kiln body; and a coal decomposed gas collecting pipe communicated with the coal propelling and decomposing channels is arranged on the kiln body. As the equipment conducts and radiates vast heat generated by the flame gas pipe heating mechanism on the coal dust in the coal propelling and decomposing channels, the coal dust fully absorbs the heat and is heated and decomposed into gases, tar gases and coal with higher heat value in the coal propelling and decomposing channels, the gases and tar gases are connected with a gas dedusting and liquefying mechanism outside the rotary kiln by the coal decomposed gas collecting pipe, and the gases and tar gases obtained through decomposition are collected, dedusted, separated and liquefied under pressure.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of coal substances, energy saving and emission reduction, and in particular relates to a decomposition equipment of coal substances. Background technique [0002] Among the known technologies, there are those that use coal to produce gas, some that use coal to produce natural gas, and those that use coal for high-temperature, medium-temperature, and low-temperature coking and gas production. Screening block materials will increase the cost of raw materials, or the calorific value of the produced gas is not high, the added value is not large, and the economic and social benefits are not significant. The heating method of the furnace can be divided into external heating type, internal heating type and internal heating and external heating mixed type. The heating medium of the external heating furnace is not in direct contact with the raw materials, and the heat is introduced from ...

AI Technical Summary

Problems solved by technology

[0005] At present, there are mainly two types of commonly used coal decomposition equipment. One is the shaft kiln structure, which burns flue gas and combustible gas produced by coal, which makes the combustible gas have low purity and low added value, and some of it is discharged, causing A lot of waste of resources and pollution of the environment

Another type of vertical kiln is that the coal blocks are placed on a partition with holes, and there is a heater above the coal block. Because the coal blocks on the partition have a certain accumulation thickness, they cannot be heated and decomposed evenly, and the decomposed gas needs to be used to Circular heating, decomposition, and more importantly, because of the existence of a large number of circulation vent holes on the coal separator, coal powder will leak from the vent holes, so when coal powder needs to enter the shaft kiln, it needs to be processed into coal lumps first, Therefore, pulverized coal cannot be directly used for kiln body separation, which correspondingly increases the cost of pulverized coal decomposition and reduces economic benefits

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