Decomposition equipment for crushed coal and pulverized coal

Abstract

The invention discloses a decomposition equipment for crushed coal and pulverized coal, which comprises a horizontally sealed rotary kiln body with a material inlet and a material outlet, a heating mechanism is arranged on the kiln wall of the kiln body, and the heating mechanism is connected The pulverized coal and pulverized coal propulsion and decomposition channels formed between the walls of the kiln body, the coal decomposition gas collection pipes connected with the pulverized coal and pulverized coal promotion and decomposition channels are arranged on the kiln body, and the control part of the heating mechanism is set on the kiln wall Externally, the heating part is set inside the kiln wall. The control and detection part is set outside the kiln wall, and it is easy to accurately control the ignition effect and ignition state during the continuous contact with the flammable and explosive high-temperature coal decomposition gas. In addition, while better controlling the ignition quality and accuracy, the igniter, as a wearing part, is arranged outside the kiln wall for easy inspection and maintenance.

Description

[0001] technical field [0002] The invention belongs to the technical field of pulverized coal and pulverized coal comprehensive utilization, energy saving and emission reduction equipment, and in particular relates to a pulverized coal and pulverized coal decomposition equipment. Background technique [0003] 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 wit...

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Problems solved by technology

It solves the technical problem of sufficient heating and rapid decomposition of pulverized coal, but an unavoidable problem is that in the process of continuous contact with flammable and explosive high-temperature coal decomposition gas, the ignition mechanism is located inside the rotary kiln body, It is very difficult to control accurately. It may be due to one or another reason that the combustible gas in some pipelines will accumulate in large quantities without being ignited. This is likely to cause safety problems in high temperature environments. In addition, the internal ignition mechanism It is not easy to control and at the same time, the igniter is not easy to repair and maintain as a wearing part, which cannot meet the purpose of continuous and reliable production and operation, and the shutdown of production and maintenance will bring significant losses

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