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Ende staged gasification system for dry cleaning treatment of fly ash

A gasification system, Ender's technology, applied in the field of Ender graded gasification system, can solve the problems of large water consumption, difficult black water treatment, increased cost, etc., and achieve the effect of less ash content

Inactive Publication Date: 2019-11-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of high water consumption in the fly ash treatment process in the existing Ender gasification system, the black water produced is difficult to handle, and increases the cost, and provides an Ender graded gasification system for fly ash dry cleaning treatment

Method used

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  • Ende staged gasification system for dry cleaning treatment of fly ash
  • Ende staged gasification system for dry cleaning treatment of fly ash
  • Ende staged gasification system for dry cleaning treatment of fly ash

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specific Embodiment approach 1

[0027] Specific implementation mode one: combine figure 1 To illustrate this embodiment, the Ender classified gasification system for fly ash dry cleaning treatment in this embodiment includes a first coal storage bin 4, a first Ender gasifier 3, a cyclone dust collector 7, a first ash hopper 8, a first waste Heat boiler 9, first multi-stage bag filter 10, second ash hopper 18, second coal storage bunker 14, second Ender gasifier 15, entrained flow gasifier 12, second waste heat boiler 16 and second Multi-stage bag filter 17,

[0028] The outlet of the first coal storage bunker 4 communicates with the entrance of the first Ende gasifier 3, and the top of the first Ende gasifier 3 communicates with the cyclone dust collector 7. The top of the dust collector 7 communicates with the first waste heat boiler 9, the outlet of the first waste heat boiler 9 is connected with the first multi-stage bag filter 10, and the lower part of the first multi-stage bag filter 10 is provided wit...

specific Embodiment approach 2

[0031] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the first coal storage bunker 4 is also provided with a first coal feeder 1 and a first spiral coal feeder 2, and the first coal feeder 1 passes through the first coal feeder. A coal screw conveyor 2 is connected with the first coal storage bunker 4 . Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the second coal storage bunker 14 is also provided with a second coal feeding hopper 21 and a second screw coal feeder 22, and the second coal feeding hopper 21 passes through the second coal feeding hopper. Two spiral coal feeders 22 are connected with the second coal storage bunker 14 . Others are the same as in the first embodiment.

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Abstract

The invention discloses an Ende staged gasification system for dry cleaning treatment of fly ash, and relates to an Ende staged gasification system. The problems that in the fly ash treatment processof an existing Ende gasification system, water consumption is large, generated black water is difficult to treat, and cost is increased are solved. The Ende staged gasification system comprises a first coal storage bin, a first Ende gasification furnace, a cyclone dust collector, a first ash bucket, a first waste heat boiler, a first multi-stage bag-type dust collector, a second ash bucket, a second coal storage bin, a second Ende gasification furnace, an entrained-flow bed gasification furnace, a second waste heat boiler and a second multi-stage bag-type dust collector. A first ash bucket isarranged below the cyclone dust collector; a second ash hopper is arranged below the first multi-stage bag-type dust collector, the first ash hopper and the second ash hopper are communicated with a second coal storage bin, the second coal storage bin is communicated with a second Ende gasification furnace, the top of the second Ende gasification furnace is communicated with an entrained-flow bedgasification furnace, the top of the entrained-flow bed gasification furnace is communicated with a waste heat boiler, and the waste heat boiler is connected with the second multi-stage bag-type dustcollector. The Ende staged gasification system is used in the field of coal gasification.

Description

technical field [0001] The invention relates to an Ender graded gasification system. Background technique [0002] Coal gasification is the conversion of C and H in coal into clean syngas or fuel gas (CO+H 2 )the process of. Not only to achieve clean and efficient utilization of coal, but also a key technology for the development of coal-based bulk chemicals. Ende crushed coal spouted bed gasifier was introduced into my country in 2000. It has the advantages of wide range of raw coal use, low cost, low production cost, safe and reliable technology, and has developed rapidly in the field of coal chemical industry in my country. The synthesis gas produced by the Ende gasifier has a large content of fly ash, and the carbon content of the fly ash is high (20%-40%), which affects the stable operation of the gasification system. [0003] The existing fly ash treatment process is as follows: the raw coal enters the coal storage tank and then is sent to the Ender pulverized coal ...

Claims

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Application Information

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IPC IPC(8): C10J3/56C10J3/54C10J3/72C10J3/84
CPCC10J3/54C10J3/56C10J3/721C10J3/723C10J3/84C10J2300/0936C10J2300/1631C10J2300/1807Y02P20/129
Inventor 方能李争起刘书轩谢成陈智超曾令艳张斌
Owner HARBIN INST OF TECH
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