Coal pyrolyzing system

A technology of coal pyrolysis and pyrolysis, which is applied in the field of coal pyrolysis systems, can solve the problems of limited heat transfer area expansion and poor economic performance, and achieve the effects of simple equipment, reduced investment costs, and high heat transfer efficiency

Pending Publication Date: 2017-12-29
新疆广汇煤炭清洁炼化有限责任公司
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  • Claims
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Problems solved by technology

This method has limited ability to expand the heat exchange area and poor economic performance
[0008] In summary, there are certain defects in the coal pyrolysis process in the prior art.

Method used

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  • Coal pyrolyzing system

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Example Embodiment

[0035] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. The application will be described in detail below in conjunction with embodiments.

[0036] As mentioned in the background art section, the coal pyrolysis system in the prior art is complex and has poor economic performance. In order to improve this situation, in a typical implementation of this application, a coal pyrolysis system is provided ,Such as figure 1 As shown, the coal pyrolysis system includes: a pre-drying unit 10 and a pyrolysis unit 20, wherein the pre-drying unit 10 is used to pre-dry and dehydrate the coal; the pyrolysis unit 20 is connected to the pre-drying unit 10 and is located in the pre-drying unit 10 Downstream of the drying unit 10.

[0037] The coal pyrolysis system provided in this application adds a pre-drying unit for pre-drying and dewatering the coal on the basis of the existing pyrolysis unit...

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Abstract

The present application provides a coal pyrolysis system. The coal pyrolysis system includes: a pre-drying unit and a pyrolysis unit, wherein the pre-drying unit is used for pre-drying and dehydrating coal; the pyrolysis unit is connected with the pre-drying unit and is located downstream of the pre-drying unit. The coal pyrolysis system adds a pre-drying unit for pre-drying and dehydrating coal on the basis of the existing pyrolysis unit, so that all the moisture in the coal powder is dried to obtain dry coal, and the pyrolysis unit uses dry coal for pyrolysis Not only the pyrolysis efficiency is high, but also the investment cost and operation cost of the whole system are reduced. The coal pyrolysis system of the present application has high heat exchange efficiency, simple equipment and good economy, and creates conditions for realizing the polygeneration process of coal, oil and gas.

Description

technical field [0001] The invention relates to the field of clean coal chemical industry, in particular to a coal pyrolysis system. Background technique [0002] Minced coal is a by-product that must be produced in the coal mining process, and the use of modern comprehensive coal mining equipment has also increased the output of minced coal. my country currently relies heavily on coal resources. With the gradual reduction of high-quality coal resources, the development and clean utilization of low-grade coal resources such as fine coal are gradually being emphasized. However, among the currently disclosed technologies, whether it is coal-to-oil, coal-to-natural gas, coal-to-methanol, or low-, medium-, and high-temperature coke-making technologies, the raw coal particles used are basically above 25mm. 25mm fine coal is more difficult to handle. A large amount of fine coal is piled up, which cannot produce economic benefits, and at the same time causes new environmental pro...

Claims

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Application Information

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IPC IPC(8): C10B53/04C10B57/10C10B57/18
CPCC10B53/04C10B57/10C10B57/18
Inventor 宋东升林发现宋自力袁国庆赵创李俊奇胡浩
Owner 新疆广汇煤炭清洁炼化有限责任公司
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