Anti-blocking vibrating screen for coal processing

Abstract

The utility model discloses an anti-blocking vibrating screen for coal processing, which comprises a screen box, a feed port is arranged on the upper surface of the screen box, discharge ports are arranged on the outer surfaces of the left side and the right side of the screen box, a vibrating motor and a support column are arranged at the bottom of the screen box, and a spring is arranged at the joint of the support column and the screen box. A fixing seat is arranged in the screen box, a screen mesh is installed in the fixing seat, a trapezoidal through hole is formed in the screen mesh, an anti-blocking device is arranged at the bottom of the fixing seat and comprises a driving motor, a connecting frame, a reciprocating lead screw, a sliding block, a shaft rod and a roller, and a cleaning device is arranged at the right end of the fixing seat. And the cleaning device comprises a scraping plate, an electric telescopic rod and a baffle, the left end of the electric telescopic rod is connected with the scraping plate, and the baffle is arranged on the inner surface of the left side of the screen box. By means of the structure, coal particles clamped in the vibrating screen can be more effectively removed.

Description

Technical Field

[0001] This utility model relates to the field of coal processing technology, and in particular to an anti-clogging vibrating screen for coal processing. Background Technology

[0002] Coal processing refers to the application of physical, chemical, or physicochemical methods to remove mineral impurities and harmful elements from coal, producing coal varieties of different qualities to meet the diverse needs of different user sectors, thus creating conditions for the effective comprehensive utilization of coal. Coal processing is categorized by depth into coarse processing, fine processing, and refining. Coarse processing mainly refers to the sorting and screening of raw coal (coal produced from coal mines without any processing); fine processing mainly refers to wet or dry coal separation; refining mainly refers to coal conversion, such as gasification, liquefaction, fluidization (coal-water slurry), and the extraction of ultrapure coal.

[0003] In the prior art, a search revealed a Chinese patent that discloses "Anti-clogging Vibrating Screen for Coal Processing", with application number "CN202023042156.6". This patent mainly solves the problem that existing vibrating screens have small amplitudes and are easily clogged.

[0004] However, the aforementioned existing technology still has its drawbacks. Some coal particles are the size of the screen and are stuck in the mesh, making it impossible to shake them out by simple vibration. Utility Model Content

[0005] The purpose of this invention is to provide an anti-clogging vibrating screen for coal processing, which can more effectively remove coal particles stuck in the vibrating screen.

[0006] To achieve the above objectives, a clog-resistant vibrating screen for coal processing is provided, comprising a screen box, an inlet on the upper surface of the screen box, outlets on the left and right outer surfaces of the screen box, and a vibrating motor and support columns at the bottom of the screen box.

[0007] The screen box is equipped with a fixed base inside, and a screen is installed inside the fixed base. An anti-clogging device is provided at the bottom of the fixed base, and a cleaning device is provided at the right end of the fixed base.

[0008] According to the aforementioned anti-clogging vibrating screen for coal processing, a spring is provided at the connection between the support column and the screen box, so that when the vibrating motor is working, the screen box and the screen inside it vibrate. A rubber pad is provided at the bottom of the support column, which can reduce the damage to the ground caused by the vibration generated when the vibrating motor is working, and reduce the generation of noise.

[0009] According to the aforementioned anti-clogging vibrating screen for coal processing, the cleaning device includes a scraper, an electric telescopic rod, and a baffle.

[0010] According to the aforementioned anti-clogging vibrating screen for coal processing, the left end of the electric telescopic rod is connected to a scraper, the bottom end of which contacts the upper surface of the screen mesh, effectively scraping away residual coal above the screen mesh. The baffle is set on the inner left side of the screen box, above the scraper, to prevent coal from falling into the cleaning device during vibrating and filtering the screen mesh, thus affecting the normal operation of the cleaning device.

[0011] According to the aforementioned anti-clogging vibrating screen for coal processing, the anti-clogging device includes a drive motor, a connecting frame, a reciprocating lead screw, a slider, a shaft, and a drum.

[0012] According to the aforementioned anti-clogging vibrating screen for coal processing, a drive motor is provided on the outer right side of the screen box. The output end of the drive motor extends to the inner end of the connecting frame and is fixedly connected to a reciprocating lead screw. A slider is threadedly connected to the outer wall of the reciprocating lead screw. A slot is provided at the bottom of the connecting frame. The slider slides through the slot. A shaft is provided on the inner surface of the slider, and a roller is provided on the outer surface of the shaft.

[0013] According to the aforementioned anti-clogging vibrating screen for coal processing, the screen mesh is provided with trapezoidal through holes, and the trapezoidal through holes have a "narrow at the top and wide at the bottom" structure. This structure can effectively reduce the clogging of coal in the screen mesh and reduce the phenomenon of blockage.

[0014] According to the aforementioned anti-clogging vibrating screen for coal processing, the outer surface of the drum is provided with several spike-like protrusions, and the protrusions penetrate the trapezoidal through holes inside the screen mesh, which can push out the blocked coal when the screen mesh is blocked, thus preventing the screen mesh from becoming clogged.

[0015] This utility model has the following beneficial effects:

[0016] 1. Compared with the prior art, this anti-clogging vibrating screen for coal processing is equipped with a drive motor, a connecting frame, a reciprocating screw, a slider, a shaft, and a drum. By starting the drive motor, the reciprocating screw in the connecting frame is rotated, causing the slider to move back and forth, and the drum also starts to rotate. The spike-like protrusions on the drum push out the coal that is blocked in the screen as the drum rotates, preventing the screen from being blocked.

[0017] 2. Compared with the prior art, this anti-clogging vibrating screen for coal processing is equipped with a cleaning device, a drive motor, and a spring. By activating the electric telescopic rod inside the cleaning device, the electric telescopic rod extends to the left and drives the scraper to scrape away the residual coal on the screen. The baffle above the scraper blocks the coal vibrating up and down, preventing coal from falling into the cleaning device and affecting its operation. The drive motor, together with the spring, can generate strong vibrations in the screen box and the screen inside it, reducing the clogging of the screen.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a three-dimensional front view sectional view of an anti-clogging vibrating screen for coal processing according to this utility model;

[0021] Figure 2 This is a formal cross-sectional view of an anti-clogging vibrating screen for coal processing according to this utility model;

[0022] Figure 3 This is a bottom cross-sectional view of an anti-clogging vibrating screen for coal processing according to the present invention.

[0023] Figure 4 This utility model relates to an anti-clogging vibrating screen for coal processing. Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This utility model relates to an anti-clogging vibrating screen for coal processing. Figure 2 Enlarged view of section B in the middle.

[0025] Legend:

[0026] 1. Screen box; 2. Feed inlet; 3. Discharge outlet; 4. Vibrating motor; 5. Spring; 6. Support column; 7. Rubber pad; 8. Fixed base; 9. Screen mesh; 10. Anti-clogging device; 1001. Drive motor; 1002. Connecting frame; 1003. Reciprocating screw; 1004. Slider; 1005. Shaft; 1006. Roller; 11. Cleaning device; 1101. Scraper; 1102. Electric telescopic rod; 1103. Baffle. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] Reference Figure 1-5This utility model discloses an anti-clogging vibrating screen for coal processing, which includes a screen box 1. The upper surface of the screen box 1 is provided with a feed inlet 2, and the outer surfaces of the left and right sides of the screen box 1 are provided with discharge outlets 3. The bottom of the screen box 1 is provided with a vibrating motor 4 and a support column 6. A spring 5 is provided at the connection between the support column 6 and the screen box 1, so that when the vibrating motor 4 is working, the screen box 1 and the screen 9 inside it will vibrate. The bottom end of the support column 6 is provided with a rubber pad 7, which can reduce the damage to the ground caused by the vibration generated when the vibrating motor 4 is working, and reduce the generation of noise.

[0029] The screen box 1 is equipped with a fixed seat 8 inside, and a screen 9 is installed inside the fixed seat 8. The screen 9 has a trapezoidal through hole inside, and the trapezoidal through hole has a "narrow at the top and wide at the bottom" structure. This structure can effectively reduce the clogging of coal in the screen 9 and reduce the clogging phenomenon. The bottom of the fixed seat 8 is equipped with an anti-clogging device 10.

[0030] The anti-blocking device 10 includes a drive motor 1001, a connecting frame 1002, a reciprocating screw 1003, a slider 1004, a shaft 1005, and a roller 1006. The drive motor 1001 is provided on the outer right side of the screen box 1. The output end of the drive motor 1001 extends to the inner end of the connecting frame 1002 and is fixedly connected to the reciprocating screw 1003. The slider 1004 is threadedly connected to the outer wall of the reciprocating screw 1003. The bottom of the connecting frame 1002 is provided with a slot. The slider 1004 slides through the slot. The inner surface of the slider 1004 is provided with a shaft 1005, and the outer surface of the shaft 1005 is provided with a roller 1006.

[0031] The outer surface of the roller 1006 is provided with several spike-like protrusions, which penetrate the trapezoidal through holes inside the screen 9. When the screen 9 is blocked by coal, the blocked coal can be pushed out to prevent the screen 9 from becoming blocked.

[0032] A cleaning device 11 is provided at the right end of the fixed base 8. The cleaning device 11 includes a scraper 1101, an electric telescopic rod 1102, and a baffle 1103. The scraper 1101 is connected to the left end of the electric telescopic rod 1102. The bottom end of the scraper 1101 contacts the upper surface of the screen 9, which can effectively scrape off the residual coal above the screen 9. The baffle 1103 is provided on the left inner surface of the screen box 1, above the scraper 1101, which can prevent coal from falling into the cleaning device 11 during vibration filtration and affecting the normal operation of the cleaning device 11.

[0033] Working principle: Turn on the power and start the vibration motor 4. Under the action of the spring 5 and the vibration motor 4, the screen box 1 and the internal screen 9 start to vibrate and filter. The drive motor 1001 also starts, driving the reciprocating screw 1003 in the connecting frame 1002 to rotate, causing the slider 1004 to move back and forth. The roller 1006 also starts to rotate. The spike-like protrusions on the roller 1006 push out the coal blocked in the screen 9 as the roller 1006 rotates. The coal that is pushed out is discharged from the discharge port 3 due to the vibration of the screen 9. Finally, the vibration motor 4 is stopped, the electric telescopic rod 1102 is started, the electric telescopic rod 1102 extends to the left and drives the scraper 1101 to scrape off the residual coal on the screen 9.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A clog-resistant vibrating screen for coal processing, characterized in that, Including the sieve box (1), the upper surface of the sieve box (1) is provided with a feed inlet (2), the outer surface of the left and right sides of the sieve box (1) is provided with a discharge port (3), and the bottom of the sieve box (1) is provided with a vibrating motor (4) and a support column (6); The inside of the sieve box (1) is provided with a fixed seat (8), the fixed seat (8) is provided with a sieve (9), the bottom of the fixed seat (8) is provided with an anti-blocking device (10), and the right end of the fixed seat (8) is provided with a cleaning device (11).

2. The anti-blocking vibrating screen for coal processing according to claim 1, characterized in that, The connecting part of the support column (6) and the sieve box (1) is provided with a spring (5), and the bottom end of the support column (6) is provided with a rubber pad (7).

3. The anti-blocking vibrating screen for coal processing according to claim 1, characterized in that, The cleaning device (11) comprises a scraper (1101), an electric telescopic rod (1102) and a baffle (1103).

4. The anti-blocking vibrating screen for coal processing according to claim 3, characterized in that, The left end of the electric telescopic rod (1102) is connected with the scraper (1101), and the baffle (1103) is arranged on the left inner surface of the sieve box (1) and located above the scraper (1101).

5. The anti-blocking vibrating screen for coal processing according to claim 1, characterized in that, The anti-blocking device (10) comprises a driving motor (1001), a connecting frame (1002), a reciprocating screw rod (1003), a sliding block (1004), a shaft rod (1005) and a roller (1006).

6. The anti-blocking vibrating screen for coal processing according to claim 5, characterized in that, The right outer surface of the sieve box (1) is provided with a driving motor (1001), the output end of the driving motor (1001) extends to the inner end of the connecting frame (1002), and the reciprocating screw rod (1003) is fixedly connected, the outer wall of the reciprocating screw rod (1003) is threadedly connected with the sliding block (1004), the bottom of the connecting frame (1002) is provided with a slot, the sliding block (1004) slides and penetrates through the slot, the inner surface of the sliding block (1004) is provided with a shaft rod (1005), and the outer surface of the shaft rod (1005) is provided with a roller (1006).

7. The anti-blocking vibrating screen for coal processing according to claim 1, characterized in that, The inside of the sieve (9) is provided with a trapezoidal through hole, and the trapezoidal through hole is of "narrow upper and wide lower" structure.

8. The anti-blocking vibrating screen for coal processing according to claim 6, characterized in that, The outer surface of the roller (1006) is provided with a plurality of thorn-shaped protrusions, and the protrusions penetrate through the trapezoidal through hole in the inside of the sieve (9).

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