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Integrated processing method and device for gasifiable coal

A processing method and technology for gasifying coal, which can be applied in sustainable manufacturing/processing, chemical industry, granular/powder fuel gasification, etc., can solve the problems of easy explosion, complicated process, low efficiency, etc., and achieve low operating costs, The effect of high combustion efficiency and large specific surface area

Pending Publication Date: 2019-06-11
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to: in view of the above-mentioned pulverized coal gasification process, the gasification agent needs oxygen and water vapor, and the preparation of the gasification agent requires a complex process, low efficiency and finely crushed high-temperature gasifiable coal and oxygen in the air The problem of easy explosion when exposed to contact, the present invention provides an integrated processing method and device for gasification coal

Method used

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  • Integrated processing method and device for gasifiable coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The gasification coal integrated processing device includes a steam generator 1, a steam injection mill 2, a gasification furnace 3 and an induced draft fan 4 connected in sequence, and the gasification coal gasification furnace 3 is equipped with a steam supplementary The gas port 5, the gasifier 3 is provided with an oxygen inlet 6. The flue gas outlet of the gasifier 3 is connected to the steam generator 1 through a pipe 8 .

[0033] An integrated processing method for gasification coal, comprising the following steps:

[0034] (1) finely crushing and drying the gasifiable coal in the raw material bin through the steam jet mill 2 to obtain a gasifiable coal powder mixture;

[0035] (2) The gasifiable pulverized coal mixture is transported to the classifier by airflow for classification;

[0036] (3) The coarse gasifiable pulverized coal mixture with a particle size greater than 90 μm is returned to the steam jet mill for ultra-fine pulverization, and the fine gasif...

Embodiment 2

[0046] The gasification coal integrated processing device includes a steam generator 1, a steam injection mill 2, a gasification furnace 3 and an induced draft fan 4 connected in sequence, and the gasification coal gasification furnace 3 is equipped with a steam supplementary Gas port 5, the gasifier 3 is provided with an oxygen inlet. The flue gas outlet of the gasifier 3 is connected to the steam generator 1 through a pipe 8 .

[0047] An integrated processing method for gasification coal, comprising the following steps:

[0048] (1) Finely pulverize and dry the gasifiable coal in the raw material bin through a steam jet mill to obtain a gasifiable coal powder mixture;

[0049] (2) The gasifiable pulverized coal mixture is transported to the classifier by superheated air flow for classification;

[0050] (3) The coarse gasifiable pulverized coal mixture with a particle size greater than 90 μm is returned to the steam jet mill for ultra-fine pulverization, and the fine gasi...

Embodiment 3

[0060] The gasification coal integrated processing device includes a steam generator 1, a steam injection mill 2, a gasification furnace 3 and an induced draft fan 4 connected in sequence, and the gasification coal gasification furnace 3 is equipped with a steam supplementary Gas port 5, the gasifier 3 is provided with an oxygen inlet. The flue gas outlet of the gasifier 3 is connected to the steam generator 1 through a pipe 8 .

[0061] An integrated processing method for gasification coal, comprising the following steps:

[0062] (1) Finely pulverize and dry the gasifiable coal in the raw material bin through a steam jet mill to obtain a gasifiable coal powder mixture;

[0063] (2) The gasifiable pulverized coal mixture is transported to the classifier by superheated air flow for classification;

[0064] (3) The coarse gasifiable pulverized coal mixture with a particle size greater than 90 μm is returned to the steam jet mill for ultra-fine pulverization, and the fine gasi...

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Abstract

The invention discloses an integrated processing method and device for gasifiable coal. The method comprises the following steps: fine crushing and drying are carried out on gasified coal in a raw material bin through a steam jet mill; the gasified coal powder mixture is conveyed into a grading machine for grading through an air flow; and gasification is carried out in a gasification furnace aftergrading, wherein a steam conveying channel is arranged below a feeding hole of the gasification furnace, and gasification parameters can be adjusted according to the change of working conditions. Theproblem that in a conventional process, gasifiable coal is crushed first, then the gasified coal is collected, and finally the gasified coal is conveyed into a gasification furnace is avoided. The short process saves more energy compared with a conventional process, the process is short, and equipment investment is low.

Description

technical field [0001] The invention belongs to the field of technical application of ultrafine pulverization and drying equipment and energy saving and emission reduction, and in particular relates to an integrated processing method and device for gasification coal. Background technique [0002] Coal gasification technology is a very important development direction in the clean combustion of coal and the sustainable development of energy. The clean gas obtained through gasification and purification can be used for chemical synthesis, hydrogen production, combined cycle power generation and city gas. Due to the desulfurization process during purification, the tail gas no longer contains components that pollute the atmosphere, realizing the clean utilization of coal, and coal gasification technology can achieve higher pollutant emission control standards than other clean coal technologies. [0003] Ultra-fine pulverized coal fuel is a new low-NOx emission combustion method f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48
CPCY02P20/10
Inventor 颜翠平张明星陈俊冬陈海焱
Owner SOUTHWEAT UNIV OF SCI & TECH
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