Horizontal gas gasifier and gasification method thereof

A technology of gasification furnace and coal gas, which is applied in the field of horizontal coal gasification furnace and its gasification, can solve the problems of not being able to meet the needs of small gas production coal gasification technology users, reduce the height of steel structure, reduce the height of equipment, etc., and achieve the reduction of steel The effect of structural height, height reduction, and extended maintenance period

Pending Publication Date: 2021-11-02
KEDA MAS CLEAN ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the fact that the entrained flow beds in the prior art are basically large or medium-sized gasifiers, which cannot meet the needs of users of coal gasification technology with small gas production capacity, the present invention proposes a horizontal coal gasification furnace and its gasification method. The gasification furnace includes a g

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  • Horizontal gas gasifier and gasification method thereof

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Effect test

Embodiment 1

[0039] The gasification method of a kind of horizontal gasification furnace of the present embodiment, such as figure 1 shown, including the following steps:

[0040] Step 1. Send coal powder and other gasification agents into the gasification reaction chamber 1 through the coal burner installed at the burner channel 4 for incomplete combustion;

[0041] Step 2: High-temperature gas and slag enter the gas-slag separation section 2 from the lower slag port 23, and at the same time, low-temperature gas is injected from the chilling ring 6 and mixed with high-temperature gas to initially cool the gas and molten slag to the ash melting point of the slag The slag is solidified into solid slag as follows;

[0042] Step 3: The gas continues to enter the bottom of the membrane water wall 5 to separate the gas and slag, and the slag with a large particle size falls into the slag pool below under the action of inertia; the slag with a small particle size and part of the fly ash are spr...

Embodiment 2

[0047] A kind of horizontal coal gas gasifier of present embodiment, basic structure is the same as embodiment 1, difference and improvement are: as figure 1 As shown, it includes gasification reaction chamber 1, gas slag separation section 2 and slag pool 3 arranged in sequence from top to bottom; the gasification reaction chamber 1 is placed horizontally, and the gasification reaction chamber placed horizontally effectively reduces Compared with the vertical gasification reaction chamber, the height of the overall steel structure can be greatly reduced and the cost can be reduced; the gasification reaction chamber 1 includes a cylindrical gasification reaction outer shell 11, and the gasification reaction chamber 1 The inside of the reaction chamber 1 is a cavity structure, and an insulated hearth 12 made of refractory material is arranged between the cavity and the outer shell 11 of the gasification reaction chamber. The bottom of the gasification reaction chamber 1 is verti...

Embodiment 3

[0052] A kind of horizontal coal gas gasification furnace and gasification method thereof of the present embodiment, the basic structure is the same as that of embodiment 2, the differences and improvements are as follows: figure 1 As shown, the middle part of the gas slag separation section 2 is vertically provided with a membrane-type water-cooled wall 5, and the membrane-type water-cooled wall 5 includes a sealed cylinder formed by alternating welding of straight steel pipes and flat steels, and its upper and lower ends are respectively An outlet header 52 and an inlet header 51 are provided, the inlet header 51 is externally connected with a membrane-type water-cooled wall inlet pipe 511, and the outlet header 52 is externally connected with a membrane-type water-cooled wall outlet pipe 521; The main function of the water-cooled wall 5 is to form a gas baffle channel. The high-temperature gas and slag fall from the upper lower slag port 23 and enter the interior of the memb...

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Abstract

The invention discloses a horizontal coal gas gasifier and a gasification method thereof, and relates to the field of clean coal gasification. According to the horizontal gas gasifier and the gasification method thereof, the horizontal gasifier comprises a gasification reaction chamber, a gas-slag separation section and a slag pool which are sequentially arranged from top to bottom, burner channels are symmetrically arranged on the two sides of the gasification reaction chamber, pulverized coal is introduced into the burner channels for incomplete combustion, and high-temperature coal gas and slag generated by gasification reaction enter the gas-slag separation section from a slag discharging opening; a membrane type water cooling wall is vertically arranged in the middle of the gas-slag separation section, low-temperature coal gas enters the gas-slag separation section from a chilling ring arranged on the upper portion of the membrane type water cooling wall, the temperature of the high-temperature coal gas is reduced to be below the ash melting point of slag, the slag is solidified into solid slag, the coal gas and the solid slag are subjected to gas-slag separation at the bottom, the slag falls into the slag pool, coal gas enters a subsequent system from the coal gas outlet in the upper portion, the horizontally-arranged gasification reaction chamber and the membrane type water cooling wall are adopted to play a baffling role, and then the overall height of the gasifier is greatly reduced.

Description

technical field [0001] The invention relates to the field of clean coal gasification, in particular to a horizontal coal gas gasification furnace and a gasification method thereof. Background technique [0002] Coal gasifier is a common equipment used to produce gas from coal as raw material for gas or chemical synthesis gas. It can be mainly divided into three categories: fixed bed, fluidized bed and entrained bed. Entrained bed gasification is to send the gasification agent (oxygen and water vapor) with coal powder or coal slurry into the gasifier through special nozzles. Under the high-temperature radiation, the oxygen-coal mixture instantly ignites and burns rapidly, generating a large amount of heat. The temperature in the center of the flame can be as high as 2000°C, all dry distillation products are rapidly decomposed, and coal char is gasified at the same time to generate gas and slag (liquid slag) containing carbon monoxide and hydrogen. [0003] Among the three ...

Claims

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Application Information

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IPC IPC(8): C10J3/00C10J3/30C10J3/48C10J3/50C10J3/72C10J3/84
CPCC10J3/002C10J3/30C10J3/723C10J3/48C10J3/50C10J3/84C10J2300/0933C10J2300/0973C10J2300/1625C10J2300/1615
Inventor 全健森邵如意韩忠辉高艳艳
Owner KEDA MAS CLEAN ENERGY
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