High pressure star-like feeder

A star-shaped feeding and high-pressure technology, which is applied in the direction of granular/powdered fuel gasification, can solve the problems of increasing motor power and increasing shaft friction, so as to reduce shaft friction, prevent coal powder leakage, and run at high speed small moment effect

Active Publication Date: 2014-07-02
DONGFANG ELECTRIC CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its filler will increase the friction of the shaft, thereby increasing the power of the motor

Method used

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  • High pressure star-like feeder

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Embodiment Construction

[0017] Such as figure 1 As shown, a high-voltage star feeder includes a motor 7, a rotor 4 and a star feeder housing 2, the star feeder housing 2 is fixed outside the rotor 4, and the output shaft of the rotor 4 and the motor 7 connect. In particular, the front end of the rotor 4 is connected to the star feeder housing 2 through the rotating bearing 3, which can achieve the minimum operating torque, and the end of the rotor 4 is connected to the output shaft of the motor 7 through a rigid coupling 10; the front end of the rotor 4 The star-shaped feeder housing 2 is provided with a housing end cover 13 for sealing; a bearing compression ring 12 is provided between the outside of the rotating bearing 3 and the star-shaped feeder housing 2, and one end of the bearing compression ring 12 is provided There is a right-angle flange, and the flange of the bearing compression ring 12 is tightly connected to the star feeder housing 2 and the pressure cover 5 of the reducing section for...

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Abstract

The invention discloses a high pressure star-like feeder. The high pressure star-like feeder comprises a motor, a rotor and a star-like feeder shell, wherein the front end of the rotor is connected with the star-like feeder shell by a rotating bearing; a shell end cover for sealing is arranged on the star-like feeder shell; the tail end of the rotor is connected with an output shaft of the motor by using a rigid shaft coupling; a bearing pressing ring is arranged between the exterior of the rotating bearing and the star-like feeder shell; a right-angled folding edge is arranged at one end of the bearing pressing ring; the star-like feeder shell is closely connected with a reducing section pressure cover used for sealing the middle part of the rotor by using the folding edge; the other end of the reducing section pressure cover is closely connected with a sealing cover of the motor by using a motor fixing piece; and an end cover for sealing is arranged at the tail end of the sealing cover. According to the invention, by using integral sealing, the motor is cooled by using high pressure purging wind and the bearing is sealed at high pressure so that the pressure bearing problem is solved; meanwhile, the friction of the rotating shaft is also reduced, the motor power is reduced, the coal dust leakage is prevented, and the material can be added under various pressure environments, such as low pressure, medium pressure, high pressure and the like.

Description

technical field [0001] The invention relates to an adding device for pressurized air-flow bed gasification of dry coal powder, in particular to a high-pressure star feeder. Background technique [0002] The coal addition system is an important part of the dry coal powder pressurized entrained entrained gasification system. Coal gasification pulverized coal conveying devices mainly include pneumatic conveying and mechanical conveying. [0003] Among them, the mechanical conveying method mostly adopts screw feeder, star feeder, etc., which can realize stable and uniform feeding under normal pressure. However, the pressure of the dry pulverized coal pressurized entrained bed gasification system is relatively high, usually reaching or exceeding 3.0 MPa. Conventional screw feeders or star feeders cannot meet the requirements. [0004] For example, the publication date is October 07, 2009, and the Chinese patent document with the publication number CN101551016A discloses "a sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/50
Inventor 胡春云吴家桦张鑫王晓亮曹立勇胡蕴成
Owner DONGFANG ELECTRIC CORP LTD
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