A coal screening device
A sieving device and coal technology, applied in grain processing, etc., can solve problems such as easy blockage of sieve holes, single structure, and affecting the passage of small particles, so as to improve the crushing effect and efficiency, improve rationality and reliability, and improve The effect of efficiency and effectiveness
Active Publication Date: 2022-07-01
艾珂宇
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Problems solved by technology
In the prior art, the pulverization of coal mostly adopts a device with a pendulum and a roller, which has the advantages of high efficiency and labor intensity compared with manual work, but it also has disadvantages
The pendulum has a single structure, which can only be used for rough crushing of coal, and the pulverized coal particles are very different; roller extrusion can effectively avoid the problems of the pendulum, but the circular structure of the roller is easy to cause the coal to slip during the crushing process Phenomenon that affects the pulverization of coal
In addition, the particle size of the pulverized coal is different. When sieving, small particles can pass through the sieve holes on the sieve plate, while large particles that cannot pass through the sieve holes are accumulated on the sieve plate, which is easy to block the sieve. Pores affect the passage of small particles
Method used
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[0032] See attached Figure 1-7 , a coal screening device, comprising:
[0033] The casing 100, the casing 100 is a hollow structure with upper and lower openings; the left middle part of the casing 100 is fixed with a feeding hopper 101 that communicates with it; the lower end of the casing 100 is fixed with a semicircular arc screen that protrudes toward its lower end The screen hole 1021 is evenly opened on the arc screen plate 102; the right side wall of the casing 100 is provided with a discharge port 103, and the bottom end of the discharge port 103 is flush with the top end of the arc screen plate 102;
[0034] The pulverizing mechanism 200 is located inside the casing 100 and below the discharge port of the hopper 101; in this embodiment, the specific structure of the pulverizing mechanism 200 is: the pulverizing mechanism 200 includes a first pulverizing drum 201, a second Crushing drum 202, first spur gear 203, second spur gear 204, third spur gear 205, fourth spur ...
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The invention relates to the technical field of coal screening, in particular to a coal screening device, comprising: a casing, a feed hopper is fixed in the middle of the left side of the casing; an arc-shaped sieve plate is fixed at the lower end of the casing ; crushing mechanism, the crushing mechanism is located below the discharge port of the feed hopper; extrusion mechanism, the extrusion mechanism is located above the discharge port of the feed hopper; curved rod mechanism, the curved rod mechanism The extruding mechanism is driven to reciprocate up and down; the stirring mechanism is located inside the casing and is connected to the crushing mechanism; the stirring mechanism stirs the coal particles located on the arc-shaped sieve plate. The pulverizing device of the present invention first pulverizes the coal and then sieves it. When the coal is crushed, the coal is squeezed to realize the effective crushing of the coal, and the crushing effect and crushing efficiency are improved; the coal particles that cannot pass through the screen holes can be pushed to the outside of the casing while being screened.
Description
technical field [0001] The invention relates to the technical field of coal screening, in particular to a coal screening device. Background technique [0002] The mined coal comes in different shapes and sizes, and in order to facilitate subsequent processing and production, it needs to be pulverized. Coal crushing in the prior art mostly uses devices with pendulums and drums, which have the advantages of high efficiency and labor intensity compared with manual work, but they also have shortcomings. The pendulum has a single structure and can only roughly pulverize the coal, and the pulverized coal particles are very different; the roller extrusion can effectively avoid the problems of the pendulum, but the circular structure of the drum easily causes the coal to slip during the pulverization process. Phenomenon, affecting the coal crushing work. In addition, the particle size of the pulverized coal is different. When sieving, the small particles can pass through the sieve...
Claims
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IPC IPC(8): B02C18/02B02C18/04B02C4/08B02C4/30B02C4/42B02C21/00B02C23/16
CPCB02C18/02B02C18/04B02C4/08B02C4/30B02C4/42B02C21/00B02C23/16B02C2023/165
Inventor 艾珂宇
Owner 艾珂宇