A high-pressure powder conveying pump
A high-pressure conveying and powder technology, applied in the field of coal chemical industry
Active Publication Date: 2016-05-11
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
[0006] At present, the screw pump used for pressurized conveying of powder has the advantages of stable operation, strong sealing performance, easy operation, low investment, and reliable system operation. It has been widely used in cement, coal powder, petroleum coke powder, raw meal powder, ore powder, etc. powder and other powdery materials, especially in the pneumatic conveying system that is not afraid of extruding materials, but due to the gap between the spiral blade and the conveying pipe, the maximum operating pressure is not more than 0.6MPa
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[0015] The present invention will be described in detail below with reference to the accompanying drawings: as shown in the figure, a high-pressure powder conveying pump according to the present invention consists of an upper hopper (1), a material leg (2), an upper fixed valve plate (3), Groove (4), rotary valve body (5), lower fixed valve plate (6), boss (7), magnetic suspension bearing (8), central shaft (9), bearing sleeve (10), bearing (11), It is composed of a speed-regulating motor (12), a fastening bolt (13), an unloading bin (14), a check valve (15), and a jetting and conveying nozzle (16). It is characterized in that the upper hopper (1) is connected with the opposite holes of the upper fixed valve plate (3) through the material legs (2), the upper fixed valve plate (3), the lower fixed valve plate (6) and the middle rotary valve body (5) There are heterosexual holes with an opening rate of 20%-45% in the same position on the upper part, and the lower part of the fix...
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The invention provides a powder high-pressure conveying pump which comprises an upper hopper, a dipleg, an upper fixing valve plate, a groove, a rotary valve, a lower fixing valve plate, a boss, a magnetic suspension bearing, a center shaft, bearing sleeves, bearings, a speed-adjusting motor, fastening bolts, a discharging bin, a check valve and a jetting and conveying nozzle. The upper hopper is connected with the upper fixing valve plate through the dipleg, the same positions of the upper fixing valve plate, the lower fixing valve plate and the rotary valve in the middle are provided with different holes with the aperture ratio of 5-25%, the discharging bin is arranged on the lower portion of the lower fixing valve plate and is connected with a jet pump through the check valve, the diameter of the rotary valve is 100-700 mm smaller than that of the upper fixing valve plate and that of the lower fixing valve plate, the upper fixing valve plate and the lower fixing valve plate are connected together through the fastening bolts on the periphery, the upper fixing valve plate and the lower fixing valve plate are provided with the bearing sleeves and the bearings and are connected with the rotary valve in series through the center shaft, and the center shaft is connected with the speed-adjusting motor.
Description
1. Technical field [0001] The present invention relates to the field of coal chemical industry, in particular, to the transportation of pulverized coal gas. 2. Background technology [0002] Coal gasification is the leading and key technology for the clean and efficient utilization of coal. Entrained bed pressurized gasification is a new type of coal co-current gasification technology developed in recent decades. The gasification agent and coal powder or coal slurry enter the gasification chamber through a nozzle, and the pyrolysis, combustion and gasification reactions of coal are almost At the same time, the high temperature ensures the efficient gasification of the coal, and the minerals in the coal become slag and leave the gasifier. Compared with other gasification technologies, pressurized entrained fluidized bed gasification has high temperature, large processing capacity, high effective gas composition, and high gasification efficiency. It is one of the most advance...
Claims
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IPC IPC(8): B65G53/16B65G53/50
Inventor 田原宇乔英云田斌
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)