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Large low-rank coal purifying quality-improving processing device

A processing equipment and low-rank coal technology, which is applied in the field of large-scale low-rank coal purification and upgrading processing equipment, can solve the problem of affecting the stable operation of the equipment, the inability to prevent coal powder from entering the water seal, and the support structure of the rotary hearth furnace cannot meet the support requirements of the large plate surface And other issues

Inactive Publication Date: 2013-02-13
HUNAN HUAYIN ENERGY TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 1. The existing support structure of the rotary hearth furnace cannot meet the support requirements of the large plate surface
[0012] 2. The design of the existing rotary hearth furnace cannot prevent a large amount of pulverized coal from entering the water seal, which will affect the stable operation of the equipment

Method used

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Embodiment Construction

[0027] In the following, the present invention will be specifically described through exemplary embodiments. It is to be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0028] Such as figure 1 As shown, a large-scale low-rank coal purification and upgrading processing equipment M includes a drying furnace 10; a pyrolysis furnace 20 is connected below the drying furnace 10; and a chilling plate 30 is connected to the pyrolysis furnace 20 Below, wherein the drying furnace 10 includes an airtight shield 11, and a rotating grate 12 arranged inside the airtight shield. Specifically, the drying furnace 10 convectively dries and heats the low-rank coal, removes moisture in the coal without causing chemical changes, and reduces the moisture in the coal to below 3%, and controls the drying temperature to ensure that the raw coal Methane, carbon monoxide and carbon ...

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Abstract

The invention discloses a large low-rank coal purifying quality-improving processing device which comprises a drying furnace, a pyrolyzing furnace connected under the drying furnace and a chilling plate connected under the pyrolyzing furnace, wherein the drying furnace comprises an airtight protective cover and a rotary grate arranged inside the airtight protective cover. The rotary grate comprises multiple radial trusses and is rotatably arranged on a round steel track. By adopting a rotary track supporting structure, the large low-rank coal purifying quality-improving processing device can meet the supporting requirement of a large disc face and ensure safe and stable operation of a rotary hearth furnace.

Description

technical field [0001] The invention relates to a purification and quality improvement processing equipment, in particular to a large-scale low-rank coal purification and quality improvement processing equipment. Background technique [0002] China's coal reserves account for 12% of the world's coal resources, my country's low-rank coal reserves account for about 50% of coal reserves, and output accounts for 30% of the current total. In terms of geographical distribution, most of the reserves are concentrated in Inner Mongolia, Shaanxi, Xinjiang, Six provinces (regions) of Gansu, Shanxi and Ningxia. According to the age of coal formation in China, the Jurassic coal reserves are the largest, accounting for about 45% of the country's proven reserves. Except for a very small amount of anthracite coal formed in this era, most of the rest are lignite, long-flame coal, Low-rank coal such as non-caking coal and weakly caking coal. Lignite is the mineral coal with the lowest degree...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B49/04C10B53/04C10B57/10C10L9/02C10L9/08F26B17/32F26B25/00
Inventor 魏远宾文锦周新良程金民张检飞
Owner HUNAN HUAYIN ENERGY TECH
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