Pulverized coal coking equipment and method

A pulverized coal and equipment technology, which is applied in pulverized coal coking equipment and coking field, can solve the problems of unstable quality, poor air permeability, and gas can not be discharged smoothly, and achieve the effect of unobstructed gas overflow channel and increased air permeability

Inactive Publication Date: 2012-06-13
XINJIANG MEITE MAGNESIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing coal semi-coke pyrolysis furnace, whether it is an internal heating type or an external heating type, requires the particle size of the raw coal used to be between 20mm-80mm, and the pulverized coal below 20mm, due to small gaps, poor air permeability, and flame penetration Insufficient power, or poor heat conduction, etc., used for coking will lead to

Method used

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  • Pulverized coal coking equipment and method
  • Pulverized coal coking equipment and method
  • Pulverized coal coking equipment and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 Internal heating type structure

[0037] like figure 1 , figure 2 As shown, the present invention provides a pulverized coal coking equipment, including a pulverized coal semi-coke pyrolysis furnace 1, and the pyrolysis furnace is respectively a charge inlet 2, a feeding and distribution area 3, a gas collection area 4, Gas dust filter zone 5, pulverized coal preheating zone 6, gas divergence zone 7, pulverized coal pyrolysis zone 8 and coke cooling zone 9.

[0038] The top of the pyrolysis furnace is the charge inlet, and a charging cart 10 is installed at the charge inlet.

[0039] The feeding and distributing area is provided with multiple forked and tapered distributing structures 11 .

[0040] The gas collecting area is provided with a plane grid-shaped gas collecting umbrella 12, and a plane grid-shaped gas diverging umbrella 13 is arranged below the gas collecting umbrella as the gas diverging area.

[0041] The coal gas dust filtering belt is a...

Embodiment 2

[0044] Embodiment 2 External heating type structure

[0045] like image 3 , Figure 4 As shown, the present invention provides a pulverized coal coking equipment, comprising a coal semi-coke pyrolysis furnace 1, the pyrolysis furnace is respectively from top to bottom furnace charge inlet 2, charging and distribution area 3, gas collection area 4, gas Dust filter zone 5, pulverized coal preheating zone 6, gas divergence zone 7, pulverized coal pyrolysis zone 8 and coke cooling zone 9.

[0046] The top of the pyrolysis furnace is the charge inlet, and a charging cart 10 is installed at the charge inlet.

[0047] The feeding and distributing area is provided with multiple forked and tapered distributing structures 11 .

[0048] The gas collecting area is provided with a plane grid-shaped gas collecting umbrella 12, and a plane grid-shaped gas diverging umbrella 13 is arranged below the gas collecting umbrella as the gas diverging area.

[0049] The coal gas dust filtering b...

Embodiment 3

[0054] The present invention also provides a method for making coke from pulverized coal. The method adopts pulverized coal with a particle size of less than 20 mm to make coke, and includes the following steps:

[0055] 1) Distribution: pulverized coal is loaded from the top of the pulverized coal semi-coke pyrolysis furnace, and distributed evenly through the fork and cone-shaped distribution structure through the feeding distribution area;

[0056] 2), preheating: the pulverized coal falls freely from top to bottom in the coal semi-coke pyrolysis furnace, interacts with the upward hot gas, and preheats the pulverized coal;

[0057] 3) Pulverized coal pyrolysis:

[0058] Internally heated semi-coke oven:

[0059] When the internal thermal structure is adopted, in the pulverized coal pyrolysis zone, multiple baffles are built on the inner wall of the furnace, the outer wall of the carbonization and the inner wall of the carbonization, and a space is formed during the downwar...

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Abstract

The invention discloses pulverized coal coking equipment and method. The equipment comprises a pulverized coal semi-coking pyrolyzing furnace, wherein the pyrolyzing furnace comprises a furnace charge inlet, a feeding and distributing region, a coal gas collecting region, a coal gas dust filtering zone, a pulverized coal preheating zone, a coal gas dispersing zone, a pulverized coal pyrolyzing region and a cooling coke outlet region from top to bottom respectively. The method is used for coking by using pulverized coal of which the particle size is smaller than 20 millimeters, and comprises distributing, preheating, dust filtering, pulverized coal pyrolyzing, coal gas collecting and coke discharging steps. In the method, pulverized coal of which the particle size is smaller than 20 millimeters is used for coking, pyrolysis of pulverized coal is balanced, coal gas produced by pyrolysis can be discharged successfully, and produced tar oil is clean and free from dust. In the method, ascending hot coal gas is used for preheating pulverized coal, and descending semi-coke is used for preheating cold air and coal gas, so that heat energy is fully utilized, and the aims of saving energy and reducing emission are fulfilled.

Description

technical field [0001] The invention relates to a pulverized coal coking equipment and a coking method Background technique [0002] Semi-coke, also known as semi-coke, is a combustible solid product obtained by low-temperature dry distillation of coal. Coal removes pyrolysis water, tar, part of sulfur and gas during the rapid pyrolysis process. The yield of semi-coke made from raw coal is about 50% to 70% of the mass of raw coal. [0003] Semi-burnt black porous, the main components are carbon, ash and volatile matter. Its ash content depends on the raw coal quality, and the volatile content is about 5% to 20% (by mass). Compared with coke, it has high volatile content, large porosity and low mechanical strength. Highly reactive with carbon monoxide, steam or oxygen. It is a very good smokeless fuel with high calorific value. It is mainly used as industrial or civil fuel, and also used in the production of synthesis gas and calcium carbide. . [0004] Semi-coke conta...

Claims

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Application Information

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IPC IPC(8): C10B15/00C10B17/00
CPCC10B21/00C10B47/00C10B49/06C10B49/00C10B1/00C10B53/04C10B3/00Y02P20/129
Inventor 陈华金
Owner XINJIANG MEITE MAGNESIUM
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