Low-rank coal quality-improving pyrolysis equipment

A low-rank coal pyrolysis technology, applied in the direction of indirect heating dry distillation, special form dry distillation, petroleum industry, etc., can solve the problem of difficult temperature control and adjustment, complex heating mechanism and distribution mechanism, uncertain stability of heating temperature, etc. problems, to achieve continuous and reliable production operation, facilitate large-scale, and improve system reliability and stability

Inactive Publication Date: 2015-08-19
郭秀梅
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This kind of coal material decomposition equipment can solve the decomposition problem of low-rank coal, especially pulverized coal, but the relatively complicated internal heating mechanism and distribution mechanism will easily bring about the uncertainty of heating temperature in the production process and the stability of normal production, especially During the decomposition process of low-rank coal, the temperature control and adjustment of different areas inside the rotary kiln body in a high-temperature environment is a relatively difficult problem to solve

Method used

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  • Low-rank coal quality-improving pyrolysis equipment
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  • Low-rank coal quality-improving pyrolysis equipment

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Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1Shown: a low-rank coal upgrading pyrolysis equipment, including a fixed airtight kiln body 1 with 2 feed ports and a material outlet 3, a high-temperature gas pipeline 4 is arranged in the fixed airtight kiln body, and the high-temperature gas The pipeline 4 is one, and the surface is provided with a cooling plate 12, and the low-rank coal is formed between the high-temperature gas pipeline 4 and the inner wall of the fixed and closed kiln body 1. The low-rank coal advances and decomposes the passage 6, and the low-rank coal promotes and decomposes the passage 6. Coal propulsion mechanism 8, the low-rank coal propulsion mechanism 8 is a horizontal crawler, which can move low-rank coal from the kiln body outlet end to the outlet end, and the fixed airtight kiln body 1 is provided with the low-rank coal propulsion decomposition channel 6 The decomposition gas collection pipe 7 is used to collect coal gas and tar gas from high-temperature pyrolysis of low-r...

Embodiment 2

[0028] Such as figure 2 Shown: a low-rank coal upgrading pyrolysis equipment, including a fixed airtight kiln body 1 with 2 feed ports and a material outlet 3, a high-temperature gas pipeline 4 is arranged in the fixed airtight kiln body, and the high-temperature gas There are multiple pipelines 4, uniformly arranged along the kiln body circumference, the low-rank coal promotion and decomposition channel 6 formed between the high-temperature gas pipeline 4 and the inner wall of the fixed and closed kiln body 1, and the low-rank coal promotion and decomposition channel 6 is set A low-rank coal propulsion mechanism 8, the low-rank coal propulsion mechanism 8 is a horizontal crawler, which can move the low-rank coal from the outlet end of the kiln body to the outlet end. 6 communicated decomposition gas collection pipe 7, used to collect coal gas and tar gas from high-temperature pyrolysis of low-rank coal, one end of the high-temperature gas pipeline 4 communicates with the hig...

Embodiment 3

[0030] Such as image 3 Shown: a low-rank coal upgrading pyrolysis equipment, including a rotary kiln body 1 with 2 feed ports and a discharge port 3, a high-temperature gas pipeline 4 is arranged in the rotary kiln body, and the high-temperature gas pipeline 4 It is a low-rank coal promotion and decomposition channel 6 formed between the inner wall of the rotary kiln body 1. The high-temperature gas pipeline 4 is provided with a heat dissipation plate 12 on the surface to increase the rate of heat dissipation. The low-rank coal promotion and decomposition A propulsion plate or lifting plate 11 is arranged in the passage 6, and the rotary kiln body 1 is combined with the propulsion plate or lifting plate 11 arranged in the low-rank coal promotion and decomposition passage 6. The end is slightly higher than the end of the discharge port, so that the kiln body has a certain inclination relative to the horizontal plane, and the low-rank coal can also be pushed to the outlet end i...

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Abstract

The invention discloses low-rank coal quality-improving pyrolysis equipment. The low-rank coal quality-improving pyrolysis equipment comprises a closed kiln with a feed inlet and a discharge outlet. A high-temperature gas pipeline is arranged in the kiln. A low-rank coal propelling and decomposing channel is formed between the high-temperature gas pipeline and the inner wall of the kiln. A decomposed gas collection pipe communicated with the low-rank coal propelling and decomposing channel is arranged on the kiln. The high-temperature gas pipeline is communicated with a high-temperature gas output/input mechanism arranged on the surface of the kiln. The low-rank coal quality-improving pyrolysis equipment has the advantages that the high-temperature gas output/input mechanism arranged on the surface of the kiln is communicated with the high-temperature gas pipeline to enable high-temperature gas to pass in the high-temperature gas pipeline, heat brought by the high-temperature gas is fully absorbed and decomposed by low-rank coal, and fuel gas, tar gas and coal with high heat value are generated in the low-rank coal propelling and decomposing channel through decomposition.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of coal materials, energy saving and emission reduction, and in particular relates to a pyrolysis device for improving the quality of low-rank coal. Background technique [0002] In my country, low-rank coal reserves represented by lignite and low-metamorphic bituminous coal account for more than 55% of the total coal resources, mainly distributed in eastern Inner Mongolia, Yunnan, Xinjiang and the Ordos Basin. As high-metamorphic coals are used less and less, the optimal utilization of low-rank coals becomes increasingly important. Compared with the technical or economic problems in the direct utilization of low-rank coal, the utilization of low-rank coal after upgrading should become an important direction. As a technology that realized industrialization later than coal gasification technology, the upgrading of low-rank coal has virtually been endowed with the expectation of "...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/04C10B47/00
Inventor 郭秀梅
Owner 郭秀梅
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