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Double-type air-distribution plate and single pipe discharging sending tank

A technology of air distribution plate and sending tank, which is applied in the direction of conveyors, conveying bulk materials, and gasification of granular/powdered fuels. It can solve problems such as low space utilization, bridging, and unstable control, and improve the internal space. Utilization rate, prevention of pulverized coal bridging, effect of large solid-gas ratio range

Active Publication Date: 2011-07-27
DONGFANG ELECTRIC CORP LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above problems and provide a double-type air distribution plate and a single-pipe upper discharge sending tank. Two different types of air distribution plates at the bottom are used to realize the stable fluidization of coal powder, which can effectively solve an air distribution problem. The problem of low space utilization and bridging of the board can also solve the instability and discontinuity of pulverized coal transportation caused by fluidization instability or complexity of control, and can also increase the solid-gas ratio to 200 ~800kg / m 3

Method used

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  • Double-type air-distribution plate and single pipe discharging sending tank
  • Double-type air-distribution plate and single pipe discharging sending tank
  • Double-type air-distribution plate and single pipe discharging sending tank

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Embodiment Construction

[0025] Such as Figure 1-3 As shown, the double-type air distribution plate and the single-pipe upper discharge sending tank include a tank body with a cylindrical upper half and a conical lower half. The lower half of the cone is provided with a main stream The air chamber 2 and the auxiliary fluidization air chamber 13, the auxiliary fluidization air chamber 13 is socketed outside the mainstream air chamber 2, and the main flow air distribution board 3 and the auxiliary fluidization air cloth are arranged in the main flow chamber 2 upwards in sequence Wind board 4.

[0026] The upper end of the auxiliary fluidized air distribution plate 4 is provided with a pulverized coal pipeline 6 passing through the top of the sending tank, and the lower end of the pulverized coal pipeline 6 is provided with an umbrella cover 5 that opens toward the auxiliary fluidized air distribution plate 4 .

[0027] The top of the sending tank is provided with a pressurized air inlet 88 .

[0028]...

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Abstract

The invention discloses a double-type air-distribution plate and single pipe discharging sending tank. The sending tank comprises a tank body with a cylindrical upper half part and a conic lower half part and is characterized in that: the conic lower half part is provided with a main fluidifying air chamber and an auxiliary fluidifying air chamber; the auxiliary fluidifying air chamber is sleeved outside the main fluidifying air chamber; and a main fluidifying air distribution plate and an auxiliary fluidifying air distribution plate are arranged in the main fluidifying air chamber upwards sequentially. The double-type air-distribution plate and single pipe discharging sending tank improves the utilization rate of inner spaces of the conventional sending tank and effectively prevents internal pulverized coal from bridging. Two different forms of air-distribution plates, namely umbrella hoods are used to control the sizes of fluidifying areas, so that the delivery with higher solid / gas ratio can be realized. The adjustment in a lager solid / gas ratio range can be realized by adjusting two flows of fluidifying air, pressurizing air and supplementing air.

Description

technical field [0001] The invention relates to the technology of an entrained bed gasifier with dry coal powder feed, in particular to a double-type air distribution plate and a single-pipe upper discharge delivery tank. Background technique [0002] The dry coal powder feed entrained flow gasifier is the main direction of gasifier research and development at present, and the dry coal powder pressurized dense phase pneumatic conveying technology is the most critical in the dry coal powder feed pressurized entrained flow gasification technology One of the techniques. [0003] At present, the coal supply system of the mainstream dry pulverized coal pressurized gasification device (Shell, GSP and other brands) adopts the lock bucket technology, that is, the pulverized coal is transported from the atmospheric pressure powder bin to the high pressure bin through the multi-stage variable pressure bin, and then passed through the closed The phase conveying system is transported t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G53/36C10J3/50
Inventor 王晓亮曹立勇胡春云胡蕴成赵庆
Owner DONGFANG ELECTRIC CORP LTD
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