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Coal dry-distillation device and modified coal production equipment using same

A technology for manufacturing equipment and coal dry distillation, which is applied in the fields of coal dry distillation devices and upgraded coal manufacturing equipment, can solve problems such as temperature reduction, and achieve the effect of inhibiting the increase of mercury concentration

Inactive Publication Date: 2015-04-01
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, although the inside of the inner cylinder (body trunk) of the coal pyrolysis device of the rotary kiln system is covered by the outer cylinder (outer skin), the portion (the center in the axial direction) heated by the heating gas can maintain a high temperature. , but the portion (the other end side in the axial direction) that is not covered by the outer cylinder protrudes from the outer cylinder and cannot be heated by the heating gas, but the temperature drops

Method used

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  • Coal dry-distillation device and modified coal production equipment using same
  • Coal dry-distillation device and modified coal production equipment using same
  • Coal dry-distillation device and modified coal production equipment using same

Examples

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no. 1 approach

[0037] in accordance with figure 1 , 2 A first embodiment of the coal pyrolysis device and the upgraded coal production facility using the coal pyrolysis device of the present invention will be described.

[0038] Such as figure 1 As shown, the coal drying mechanism, that is, the coal drying device 110 that dries coal with high moisture content, such as lignite and sub-bituminous coal, that is, low-rank coal (inferior coal) 1 includes: a hopper 111 that receives the low-rank coal 1; cylinder (body trunk) 112, which is rotatably supported, and supplies the low-rank coal 1 in the funnel 111 from one end side (base end side) to the inside; an outer cylinder (skin) 113, which is The inner cylinder 112 is rotatable and fixedly supported by covering the outer peripheral surface of the inner cylinder 112, and the heating medium, namely steam 11, is supplied to the inner side (between the inner cylinder 111); The cylinder 112 is rotatably connected to the other end side (front end ...

no. 2 approach

[0089] in accordance with image 3 , 4 A second embodiment of the coal pyrolysis device according to the present invention and the upgraded coal production facility using the coal pyrolysis device will be described. In addition, the same symbols as those used in the description of the above-mentioned embodiment will be used for the same parts as those in the above-mentioned embodiment, and the description that overlaps with the description in the above-mentioned embodiment will be omitted.

[0090] Such as image 3 As shown, one end side (base end side) of a pulverized coal feeding pipe 275 is connected to the front end side of the feeding device 174 . A protective gas supply line 276 for supplying an inert gas 12 such as nitrogen is connected to a connection portion between the front end side of the feeder 174 and the pulverized coal supply pipe 275 . In addition, the gas sending part of the desulfurization device 164 is connected to the outside of the system, and at the s...

no. 3 approach

[0099] in accordance with Figure 5 A third embodiment of the coal pyrolysis device according to the present invention and the upgraded coal production facility using the coal pyrolysis device will be described. In addition, the same symbols as those used in the description of the above-mentioned embodiment will be used for the same parts as those in the above-mentioned embodiment, and the description that overlaps with the description in the above-mentioned embodiment will be omitted.

[0100] Such as Figure 5 As shown, a pyrolysis coal distributing line 371 for dispensing a part of the pyrolysis coal 3 conveyed by the pyrolysis coal conveying line 139 is connected in the middle of the pyrolysis coal conveying line 139 . The dry distillation coal subpackaging line 371 is connected to a dry distillation coal conveying device 372 , and the dry distillation coal conveying device 372 is used to transport the dry distillation coal 3 packaged by the dry distillation coal subpacka...

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Abstract

A rotary kiln-type coal dry-distillation device (120) that: rotatably supports an inner tube (112) inside an outer tube (113); supplies heating gas (17) to the interior of the outer tube (113); moves dried coal (2) from one end side of the inner tube (112) to the other end side, and agitates and dry-distills the dried coal (2) under heat by supplying the dried coal (2) from the one end side of the inner tube (112) to the interior, and rotating the inner tube (112); sends out dry-distilled coal (3) and dry-distilled gas (14) from the other end side of the inner tube (112); and has provided therein a pulverized coal supply device (170) that supplies pulverized coal (4a) having a particle diameter of no more than 100 mu m to the interior of the inner tube (112), such that the volume of the pulverized coal is 1-10 wt% relative to the amount of dry-distilled coal (3) sent from the other end side of the inner tube (112).

Description

technical field [0001] The invention relates to a coal dry distillation device and upgraded coal manufacturing equipment using the coal dry distillation device. Background technique [0002] For example, low-rank coal (low-grade coal) with a high moisture content such as lignite and sub-bituminous coal has a low calorific value per unit weight, so it can be dried in a low-oxygen environment by performing reforming while drying or carbonizing by heating. Surface activity is reduced to form upgraded coal that prevents spontaneous combustion and increases calorific value per unit weight. [0003] Here, as a coal pyrolysis device for carbonizing dry coal after drying the above-mentioned low-rank coal, for example, a rotary kiln type device is known, in which an inner cylinder (main body trunk) is rotatably supported by an outer cylinder that is fixedly held. (outer skin), and the heating gas is supplied to the inside of the outer cylinder (between the outer cylinder and the inn...

Claims

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Application Information

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IPC IPC(8): C10B47/30C10L9/08
CPCC10B47/30C10B57/005C10B57/10C10L9/08C10L9/083C10L5/366C10L2290/02C10L2290/08C10L2290/10C10L2290/143Y02E50/10
Inventor 中川庆一大本节男佐藤文昭横滨克彦
Owner MITSUBISHI HEAVY IND LTD
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