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Low-order coal dry distillation device

A technology of low-rank coal and dry distillation, which is applied in special forms of dry distillation, direct heating dry distillation, petroleum industry, etc., can solve heat transfer and other problems, achieve the effect of increasing heat exchange area, eliminating heat transfer, and enhancing heating effect

Inactive Publication Date: 2011-01-05
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention solves the problem of heat transfer between the gas heat carrier and the outside during the coal dry distillation process by improving the structure of the existing coal dry distillation device, and provides a low-rank coal dry distillation device

Method used

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specific Embodiment approach 1

[0019] A low-rank coal carbonization device claimed by the present invention includes a hopper 1, a carbonization chamber 2, a heat preservation chamber 3, a heating chamber 4, a gas distributor 5, a heat preservation structure 6, a hot gas circulation pipeline 7 and a discharge channel 8,

[0020] Among them, the carbonization chamber 2 is placed in a heated gas environment for gas heating; the heat preservation chamber 3 is used to isolate the heat transfer between the carbonization chamber and the outside world; the heating chamber 4 is used to heat the gas heat carrier; the hot gas circulation pipeline and The discharge channel for outputting the semi-coke is used to input the gas heat carrier in the heating chamber into the heating chamber.

[0021] A low-rank coal carbonization device according to the present invention includes a hopper, a carbonization chamber, a heat preservation chamber, a heating chamber, a gas distributor, a heat preservation structure, a hot gas cir...

specific Embodiment approach 2

[0022] Embodiment 2 of the present invention is implemented on the basis of a low-rank coal carbonization device in Embodiment 1. Those skilled in the art can realize the idea of ​​the present invention according to the following specific embodiments.

[0023] First, 83.26 grams of Fugu long-flame coal with a particle size of 10-15 mm was added to the carbonization chamber 2, and 3.0 kg of metallurgical coke was installed in the heating chamber 4 as a heat exchange medium. The gas heat carrier at 24°C and the circulating hot gas at 522°C enter the heating chamber 4 through the gas heat carrier inlet 12, and exchange heat with the 800°C metallurgical coke in the heating chamber 4, and the gas heat carrier is heated to 647°C. At this time, the 45° control flap 18 between the heating chamber and the heat preservation chamber is in a closed state, and the gas heat carrier at 647°C all enters the retort chamber 2 through the screen hole 10 at the bottom of the retort chamber 2, and ...

specific Embodiment approach 3

[0024] 96.30 grams of Fugu long-flame coal with a particle size of 10-15 mm was added to the carbonization chamber 2, and 3.0 kg of metallurgical coke was installed in the heating chamber 4 as a heat exchange medium. The gas heat carrier at 24°C and the circulating hot gas at 561°C enter the heating chamber 4 through the gas heat carrier inlet 12, and exchange heat with the metallurgical coke at 800°C in the heating chamber 4, and the gas heat carrier is heated to 684°C. At this time, the 45° umbrella-shaped control flap 18 between the heating chamber and the heat preservation chamber is in a closed state, and the gas heat carrier at 684°C all enters the retort chamber 2 through the sieve hole 10 at the bottom of the retort chamber 2, and exchanges heat with the coal. , After a period of time, the temperature of the coal material rose to 684°C. At this time, the 45° control flap 18 between the heating chamber 4 and the heat preservation chamber 3 is opened, and a part of the g...

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Abstract

The invention relates to a low-order coal dry distillation device, comprising a hopper, a dry distillation chamber, a heating chamber, a thermal insulation chamber, a discharging channel, a gas distributor, a thermal insulation structure and a hot gas circulating pipe. As for the device, the dry distillation chamber is arranged in a heating gas environment, and the gas heat carrier inlet temperature of the dry distillation chamber is equal to the temperature of gas heat carrier outside the dry distillation chamber, thus no heat exchange occurs between the dry distillation chamber and the outside. The invention is also provided with the hot gas circulating pipe which is used for communicating the thermal insulation chamber with the heating chamber so as to lead the hot gas in the thermal insulation chamber to enter into the heating chamber in a circulation mode, thus saving the gas hot carrier and making full use of the heat energy of the gas hot carrier.

Description

technical field [0001] The invention relates to a coal dry distillation device, in particular to a gas heat carrier adiabatic dry distillation device suitable for low rank coal. Background technique [0002] Low-rank coal refers to coal with a lower degree of coalification, such as lignite, long-flame coal, non-caking coal, weakly caking coal, and gas coal. Low-rank coal has no caking or small caking, and is generally not suitable for coking. However, low-rank coal has a large volatile content, and tar and gas can be recovered through medium and low temperature dry distillation, and semi-coke can be produced at the same time. my country has large reserves of low-rank coal, and medium-low temperature carbonization is an effective way to develop and utilize abundant low-rank coal resources. [0003] The patent with the publication number CN101691493 discloses "an external combustion and internal heating type coal carbonization furnace", which includes a drying section, a carb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/04C10B49/02C10B15/00
Inventor 李香兰张永发王磊孙亚玲
Owner TAIYUAN UNIV OF TECH
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