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Undok pulverized coal gasification furnace with nitrogen, water vapor and synthesis gas-driven material return mechanism

A technology of gasification furnace and steam, applied in the field of coal chemical industry, can solve the problems of low carbon conversion rate, high specific coal consumption, high content of fly ash combustibles, etc., and achieve the effect of stable operation

Inactive Publication Date: 2015-05-06
HARBIN INST OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] In order to solve the problems of high content of combustibles in the fly ash produced by the existing Ende pulverized coal gasifier and the resulting high specific coal consumption and low carbon conversion rate, the present invention further proposes a drive system with nitrogen, water vapor and synthesis gas. Ende pulverized coal gasifier of the feeding mechanism

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  • Undok pulverized coal gasification furnace with nitrogen, water vapor and synthesis gas-driven material return mechanism

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specific Embodiment approach 1

[0012] Specific implementation mode one: combine figure 1 Describe this embodiment. An Ende pulverized coal gasifier with nitrogen, water vapor, and synthesis gas-driven return mechanism described in this embodiment includes a gasifier body 4, a pipeline 6, a cyclone separator 8, and an outlet of the cyclone separator. Vertical feeding channel 9, working gas flow regulating valve 12, working gas pipeline 13 and horizontal feeding channel 14, the middle part of the upper surface of gasification furnace body 4 is connected with the inlet of cyclone separator 8 through pipeline 6, and cyclone separator 8 The top of the top is provided with a gas phase outlet 7, the lower end of the cyclone separator 8 is connected with the upper end of the vertical discharge channel 9 of the cyclone separator outlet, and the lower end of the vertical discharge channel 9 of the cyclone separator outlet is connected with one end of the horizontal discharge channel 14, The other end of the horizonta...

specific Embodiment approach 2

[0015] Specific implementation mode two: combination figure 1 To illustrate this embodiment, the top of the gasifier body 4 of an Ende pulverized coal gasifier with nitrogen, water vapor, and syngas-driven return mechanism described in this embodiment is provided with a pressure measuring point 5 on the top of the gasifier. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0016] Specific implementation mode three: combination figure 1 Describe this embodiment. The outer wall of the vertical feeding channel 9 at the outlet of the ende pulverized coal gasifier with nitrogen, water vapor, and syngas-driven return mechanism described in this embodiment is sequentially arranged from top to bottom. A first material level gauge 10 and a second material level gauge 11 are provided. Other components and connections are the same as those in the first embodiment.

[0017] working principle

[0018] The circulating ash passes through the discharge channel 9 of the cyclone separator, and accumulates ash in the discharge channel 9 and 14 to form a material seal, which isolates the influence of the high pressure at the bottom of the gasifier on the flow field in the cyclone separator, so that the finer particles can also Can fall by gravity. The steam with a steam pressure of about 0.6-1 MPa is drawn from the waste heat boiler into the working gas pipeline...

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Abstract

The invention relates to an Undok pulverized coal gasification furnace, in particular relates to an Undok pulverized coal gasification furnace with a nitrogen, water vapor and synthesis gas-driven material return mechanism, and aims at solving the problems of high combustible matter content in fly ashes generated by an existing Undok pulverized coal gasification furnace and caused high specific coal consumption and low carbon conversion efficiency. The Undok pulverized coal gasification furnace comprises a gasification furnace body, a pipeline, a cyclone separator, a vertical feeding channel of cyclone separator outlet, a working gas flow control valve, a working gas pipeline and a horizontal feeding channel. The Undok pulverized coal gasification furnace is applied to the field of coal chemical industry.

Description

technical field [0001] The invention relates to an Ende pulverized coal gasifier, in particular to an Ende pulverized coal gasifier with a nitrogen, water vapor, and synthetic gas-driven return mechanism, belonging to the field of coal chemical industry. Background technique [0002] At present, crude oil is tense in the world, and its price remains high, and my country is a country that is poor in oil and rich in coal. For a long period of time, coal has been the main primary energy source. To this end, the state proposes a clean energy policy and adopts various measures for the rational use of coal. In this case, gasification, a clean coal technology, is undoubtedly an effective means to improve coal utilization efficiency, reduce pollution and realize comprehensive utilization of energy, and the gasifier is the most important equipment in the entire production system. [0003] The invention is aimed at the Ende pulverized coal gasifier. The main equipment of the gasifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/84C10J3/72C10J3/50
CPCC10J3/48C10J3/50C10J3/72C10J3/84
Inventor 陈智超王浩鹏蒋炳坤李争起曾令艳秦明
Owner HARBIN INST OF TECH
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