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Gasification furnace

A gasifier and furnace body technology, applied in the field of coal gasification, can solve the problems of difficult manufacturing, large equipment investment, and high construction cost, and achieve the effects of simple control and operation, low equipment failure rate, and simple slagging method.

Inactive Publication Date: 2012-06-13
BEIJING YINGDE QINGDA TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Large equipment investment: more equipment is required, and the cost is high. The slag breaker is a patented equipment, which is difficult to manufacture and high in cost; the lock bucket valve has a large caliber, and requires high processing accuracy, and needs to be replaced regularly
[0005] 2. High failure rate: Since the slag lock system adopts the intermittent slag discharge method, generally 20-40 minutes is a cycle, and the lock bucket and related pipelines and valves are frequently switched between high-pressure and normal-pressure environments, which is prone to failure
[0006] 3. Complicated program control: The slag lock system needs 14 steps to complete a cycle, and 12 valves participate in the interlocking action, so the program control is complicated

Method used

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Experimental program
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Effect test

Embodiment 1

[0050] In the embodiment of the present invention, such as figure 1 As shown, the damping slag discharger 2 includes: a slag discharger housing 20 and a screw 21, wherein the slag discharger housing 20 has a slag discharge channel 201, and the slag discharger housing 20 is provided with a slag discharge channel 201. The ash inlet 202 and the ash discharge port 203, the ash inlet 202 communicates with the ash outlet 11. The screw 21 is rotatably arranged in the slag discharge channel 201 along the axial direction of the slag discharger housing 20, and is used to discharge the ash entering the slag discharge channel 201 from the ash discharge port 202 through the ash discharge port 203. A rotatable screw 21 is arranged in the housing 20, so that there is a large damping in the slag discharge channel 201, which can effectively reduce the pressure difference between the furnace body 1 and the atmosphere. When the screw rod 21 rotates, a thrust is generated, combined with the The ...

Embodiment 2

[0056] Such as figure 2 and Figure 4 As shown, in the embodiment of the present invention, the damping slag discharger includes: a slag discharger housing 20, a breaker 23 and a screw 21, wherein the slag discharger housing 20 has a slag discharge channel 201, and the slag discharger The casing 20 is provided with an ash inlet 202 and an ash discharge port 203 which communicate with the slag discharge channel 201 , and the ash inlet 202 communicates with the ash outlet 11 . The screw 21 is rotatably arranged in the slag discharge channel 201 along the axial direction of the slag discharger housing 20, and is used to discharge the ash entering the slag discharge channel 201 from the ash discharge port 202 through the ash discharge port 203, and the crusher 23 is provided In the slag discharge channel 201 and adjacent to the ash outlet 11, the particle size of the ash is reduced so that the ash is easier to discharge.

[0057] Such as figure 2 As shown, the slag discharger...

Embodiment 3

[0061] Such as Figure 5 As shown, in the embodiment of the present invention, the damping slag discharger 2 includes: a slag discharger housing 20 and a rotating shaft 24, wherein the slag discharger housing 20 has a slag discharge channel 201, and the slag discharger housing 20 An ash inlet 202 and an ash discharge port 203 communicating with the slag discharge channel 201 are provided, and the ash inlet 202 communicates with the ash outlet 11 . A plurality of blades 25 are arranged on the rotating shaft 24, and the rotating shaft 24 is rotatably arranged in the slag discharge channel 201. The plurality of blades 25 extend radially outward along the rotating shaft 24 and are spaced along the circumferential direction of the rotating shaft 24. The plurality of blades 25 The inner wall of the slagging device housing 20 and the rotating shaft 24 define a plurality of slag discharge chambers 26a spaced along the circumference of the rotating shaft 24, and the plurality of slag d...

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Abstract

The invention discloses a gasification furnace, which comprises a furnace body and a damping type slagging device. The furnace body is internally provided with a furnace cavity, an ash outlet is arranged at the bottom of the furnace body, and the damping type slagging device is communicated with the ash outlet of the furnace body and used for enabling the ash in the furnace cavity to be discharged. By means of an embodiment of the gasification furnace and the damping type slagging device arranged at the position of the ash outlet, certain resistance exists in the damping type slagging device, decompression buffer from the furnace body to the atmosphere can be achieved, and the ash in the furnace body is discharged continuously or intermittently. Compared with a traditional ash locking system, the damping type slagging device is simple in structure, low in cost, simple in control and operation, and low in equipment failure rate.

Description

technical field [0001] The invention relates to the field of coal gasification, in particular to a gasification furnace. Background technique [0002] There are more than a dozen types of traditional gasifiers, but the "slag lock" system is generally used in the pressurized gasification process to discharge the ash generated after the raw coal is burned. The slag lock system generally includes a slag breaker, a lock bucket, a lock bucket circulation pump, a lock bucket flushing tank and several lock bucket valves. [0003] The slag lock system has the following disadvantages: [0004] 1. Large equipment investment: more equipment is required, and the cost is high. The slag breaker is a patented equipment, which is difficult to manufacture and high in cost; the lock bucket valve has a large caliber, and requires high processing accuracy, and needs to be replaced regularly. [0005] 2. High failure rate: Since the slag lock system adopts the intermittent slag discharge metho...

Claims

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Application Information

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IPC IPC(8): C10J3/34
Inventor 刘斌张建胜马宏波曾祖义王云杰孟菲
Owner BEIJING YINGDE QINGDA TECH