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Heating tank for quality improvement of high-yielding lignite by drying

A heating tank and gas heating technology, applied in heating devices, drying solid materials, drying chambers/containers, etc., can solve the problems of uneven heating, insufficient heat, low heating efficiency, etc., and achieve good safety, reasonable structure, Efficiency improvement effect

Active Publication Date: 2013-02-06
王远大
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention improves on the basis of the patent number ZL200810136962.4. The heat in the original tank is insufficient, and the drying effect of the lignite is not ideal. The rotation of the lignite in the tank hinders the circulation of the heating heat source, and the heating is uneven, resulting in heating efficiency. low, affecting productivity

Method used

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  • Heating tank for quality improvement of high-yielding lignite by drying

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A high-capacity lignite drying and quality-improving heating tank, including a moisture discharge pipeline 1, a feeding conveyor 2, a tank body 3, a closing cap 7, a heat supply fan 8, a first pulverized coal / gas centrifugal fan 10, and a pulverized coal supply / gas pipeline 14, the first pulverized coal / gas heating furnace 9, ash storage hopper 15, heat supply pipe 12 and product output machine 16, one end of tank body 3 is the feeding end, and the feeding end has a feeding port, and the upper The material conveyor is connected with the feed port, and its upper end is connected with a moisture discharge pipeline 1, and the lower end of the moisture discharge pipeline 1 is connected with the ash storage hopper 15, and the ash storage hopper 15 is connected with one end of the pulverized coal / gas pipeline 14, and the pulverized coal supply The other end of the gas pipeline 14 is connected to the first pulverized coal / gas centrifugal fan 10, the first pulverized coal / gas ...

Embodiment 2

[0017] The structure of this embodiment is the same as that of Embodiment 1, and the difference is that: the heating pipe and the supplementary heat supply pipe are 3 layers, and there is a space for air circulation between each layer, and the feeding end of the tank body 7 is equipped with induced draft fan. Described tank body 7 forms 10 degree inclinations with horizontal plane.

[0018] All components in this equipment can be obtained from the existing technology. Under the action of the fan, the dust, steam, smoke and other flammable and explosive substances in the drum type dehydration centrifugal heating coal storage tank are separated, and the lignite is prevented by centrifugal means. In the drum type dehydration centrifugal heating coal storage tank body is heated to produce dust gas explosion, and then the dust, steam and other impurities are processed through the purification system, and the impurities are precipitated into the purification system, and the steam is...

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Abstract

A heating tank for quality improvement of high-yielding lignite by drying comprises a moisture removal pipe, a loading conveyor, a tank body, a sealing cap, a heat supply air blower, a first powder coal / coal gas supply centrifugal fan, a powder coal / gas pipe supply line, a first powder coal / coal gas heating furnace, an ash storage hopper, a heating pipe and a product output machine, and further comprises a second powder coal / coal gas supply centrifugal fan, a second powder coal / coal gas heating furnace and a supplement heating pipe, wherein the heating pipe and the supplement heating pipe sleeved outside the heating pipe are installed in the tank; the supplement heating pipe is shorter than the heating pipe; the heat source output end of the first powder coal / coal gas heating furnace is connected with the bottom of the heat supply air blower; the heat source output end of the second powder coal / coal gas heating furnace is connected with the side or the top part of the sealing cap; and one end of the second centrifugal fan is connected with the second powder coal / coal gas heating furnace. The tank provided by the invention has the advantages of reasonable structure, high efficiency, good safety, and greatly improved efficiency compared with traditional drying and heating equipment.

Description

technical field [0001] The invention relates to lignite upgrading equipment, in particular to a high-capacity lignite drying and upgrading heating tank. Background technique [0002] The formation of lignite is very shallow from the surface, and its own water content is relatively large. In addition, a certain amount of sand, soil and other impurities are mixed in the process of forming coal, and the combustion calorific value is very low. Competing with other coal types has always been at a disadvantage, and the outstanding problems are: high moisture, low density, low calorific value (low calorie), and high volatile content. The present invention improves on the basis of the patent number ZL200810136962.4. The heat in the original tank is insufficient, and the drying effect of the lignite is not ideal. The rotation of the lignite in the tank hinders the circulation of the heating heat source, and the heating is uneven, resulting in heating efficiency. low, affecting produ...

Claims

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Application Information

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IPC IPC(8): F26B11/04F26B23/10F26B25/04F26B25/00F26B25/16
Inventor 王远大
Owner 王远大