Rotary discharging valve for pulverized coal
A technology of unloading valve and rotary valve core, which is applied in the direction of conveying bulk materials, conveyors, transportation and packaging, etc., and can solve the problems of cost increase, large investment and consumption of nitrogen, etc.
Pending Publication Date: 2021-07-06
HUANENG CLEAN ENERGY RES INST +1
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Problems solved by technology
[0002] The pulverized coal pressurized conveying unit in the coal gasification technology is usually provided with a pulverized coal lock hopper between the atmospheric pressure bin and the feed bin, and the intermittent conveying of pulverized coal from low pressure to high pressure is realized through the filling and releasing of the lock hopper. If the pulverized coal lock bucket is added, the height of the conveying device frame will be increased, and the conveying process will be longer. At the same time, the lock bucket and upstream and downstream shut-off valves will be added, and the investment will be large.
In addition, the pulverized coal lock bucket needs to consume nitrogen when charging and releasing the pressure, which leads to an increase in cost and seriously affects the promotion and application of coal gasification technology
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[0018] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0019] The schematic diagrams of the structures according to the disclosed embodiments of th...
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The invention discloses a rotary discharging valve for pulverized coal. The rotary discharging valve comprises a rotary valve element, a discharging valve shell and a rotary shaft, wherein the rotary valve element is located in the discharging valve shell, the rotary shaft penetrates through the side wall of the discharging valve shell to be connected with the rotary valve element, the outer wall of the rotary valve element makes contact with the inner wall of the discharging valve shell, a plurality of powder scraping grooves are formed in the rotary valve element in the circumferential direction, a pulverized coal inlet is formed in the top of the discharging valve shell, and a pulverized coal outlet is formed in the bottom of the discharging valve shell. The discharging valve can replace a pulverized coal lock hopper to achieve flowing of powder from low pressure to high pressure, cost is low, and is short in conveying process.
Description
technical field [0001] The invention relates to a discharge valve, in particular to a pulverized coal rotary discharge valve. Background technique [0002] The pulverized coal pressurized conveying unit in the coal gasification technology is usually provided with a pulverized coal lock hopper between the atmospheric pressure bin and the feed bin, and the intermittent transportation of pulverized coal from low to high pressure is realized through the filling and releasing of the lock hopper. With the addition of a pulverized coal lock bucket, the height of the conveying device frame is increased, and the conveying process is longer. At the same time, the lock bucket and upstream and downstream shut-off valves are added, and the investment is large. In addition, the pulverized coal lock bucket needs to consume nitrogen when charging and releasing pressure, which leads to increased costs and seriously affects the promotion and application of coal gasification technology. Cont...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B65G53/46
CPCB65G53/46B65G53/4608B65G2201/045
Inventor 樊强许世森任永强刘沅李小宇刘刚陈智李明亮侯一凡袁悦
Owner HUANENG CLEAN ENERGY RES INST