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Gasification system and gasification method for pulverized coal and blending combustion combustible materials

A gasification system, pulverized coal technology, applied in the field of coal chemical industry, can solve problems such as inability to adapt

Pending Publication Date: 2017-09-01
CHANGZHENG ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional pulverized coal burner can no longer adapt to the development of the new situation

Method used

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  • Gasification system and gasification method for pulverized coal and blending combustion combustible materials
  • Gasification system and gasification method for pulverized coal and blending combustion combustible materials
  • Gasification system and gasification method for pulverized coal and blending combustion combustible materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a gasification system for pulverized coal mixed with combustibles. The system includes a feed system, a multi-channel gasification burner and a pulverized coal gasification furnace, wherein the multi-channel gasification burner has a concentric arrangement There are eight channels, from outside to inside, they are the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the sixth channel, the seventh channel, and the eighth channel.

[0037] Wherein, the first channel, the third channel, the fifth channel and the seventh channel are burner cooling water channels; the fourth channel is the main oxygen channel; the sixth channel is the central oxygen channel; the second channel is pulverized coal channel, the eighth channel is petroleum coke channel or coke channel.

[0038] The pulverized coal passage and the combustible combustible passage are in a spiral structure to ensure that the pulverized coal and pe...

Embodiment 2

[0046] The pulverized coal mixed combustion combustible gasification system provided by the invention includes a feed system, a novel multi-channel gasification burner and a high-pressure pulverized coal gasification furnace.

[0047] Wherein, in this embodiment, the combustible substance blended is petroleum coke.

[0048] In the present embodiment, the coal quality parameter of pulverized coal is as follows:

[0049] Table 1 Pulverized coal quality data

[0050]

[0051]

[0052] The data for petroleum coke are as follows:

[0053] Table 2 Characteristic parameters of petroleum coke

[0054]

[0055] The feeding system of the present invention includes a pulverized coal pipeline, a petroleum coke pipeline, a main oxygen pipeline, a central oxygen pipeline, two superheated steam pipelines and a burner cooling water pipeline.

[0056] For the process flow of the feed, see figure 1 shown.

[0057] The raw coal is transported to the raw coal storage bin 1 through a...

Embodiment 3

[0074] The pulverized coal mixed combustion combustible gasification system provided by the invention includes a feed system, a novel multi-channel gasification burner and a high-pressure pulverized coal gasification furnace.

[0075] Wherein, in this embodiment, the combustibles blended are coke.

[0076] The feeding system of the present invention includes pulverized coal pipeline, coke pipeline, main oxygen pipeline, central oxygen pipeline, two superheated steam pipelines and burner cooling water pipeline.

[0077] For the process flow of the feed, see figure 1 shown.

[0078] The raw coal is transported to the raw coal storage bin 1 through a belt, and the pulverized coal from the raw coal storage bin 1 is fed into the coal mill 2 and ground into powder until the particle size is ≤90 μm, accounting for 90%. The pulverized coal is sent to the normal pressure pulverized coal storage tank 3 through the pipeline, and the pulverized coal in the normal pressure pulverized coa...

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Abstract

The invention provides a gasification system and a gasification method for pulverized coal and blending combustion combustible materials. The gasification system comprises a feeding system, a multi-channel gasification burner and a pulverized coal gasifier, wherein the multi-channel gasification burner is provided with eight channels which are concentrically arranged; the pulverized coal, the blending combustion combustible materials and oxygen respectively enter respective channels of the multi-channel gasification burner through the feeding system; the ratio of the oxygen to the coal in each layer can be adjusted separately to achieve the effect of controlling the temperature respectively; the carbon conversion rate can be improved, and components of effective gas in syngas can be improved; in addition, the large-scale gasification of the pulverized coal can be realized, and the gasification of low-rank coal and mixed combustion of coal with different characteristics can be realized.

Description

technical field [0001] The invention relates to the technical field of coal chemical industry, in particular to a gasification system and method for pulverized coal mixed with combustibles. Background technique [0002] Now the coal chemical industry is moving towards the integration of industrial parks and refining. The raw coal for coal gasification is showing a trend of diversification. In particular, the petroleum coke of refining and chemical enterprises needs to be digested on site to maximize the utilization of resources. The best way to use petroleum coke in industrial parks and refining-chemical integration projects is as a raw material for coal gasification equipment for co-firing. However, petroleum coke has low volatility, poor activity, and high reaction temperature. If you still use traditional methods and If the raw materials are mixed and burned, there will be problems such as low effective gas in the synthesis gas, low carbon conversion rate and high carbon ...

Claims

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Application Information

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IPC IPC(8): C10J3/46C10J3/48C10J3/50C10J3/72
CPCC10J3/46C10J3/48C10J3/50C10J3/723C10J2300/093C10J2300/0943C10J2300/0976C10J2300/0959C10J2300/0906
Inventor 袁金刚毛炜许洋韩勇石剑朱玉营
Owner CHANGZHENG ENG
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