CN111468409A - Coal mine screening device - Google Patents

Abstract

The invention discloses a coal mine screening device. A separation roller, a collecting hopper and a screen body are sequentially arranged in a casing cavity from top to bottom. The left and right ends of the separation roller pass through the casing, and eccentrics are sleeved on the left and right ends. The right end of the separation roller is also set with a driven pulley and a swing wheel in turn. The upper guide rod is fixedly connected to the shell at the corresponding position above the separation roller, and the lower guide rod is fixedly connected to the shell at the corresponding position below the separation roller. The rotating rods are staggered with the upper and lower guide rods. The collecting hopper is placed under the separation roller. The cross-section of the collecting hopper is funnel-shaped. The screen body is placed under the collecting hopper. In the body cavity, the other end of the sieve body penetrates the shell, and ear seats are installed on both sides of the sieve body outside the shell cavity. The brackets are hinged on the ear seats. The advantages of the invention are: easy classification, anti-clogging, high working efficiency and avoiding damage to the sieve body.

Description

A coal mine screening device

technical field

The invention belongs to the technical field of coal mine screening, and in particular relates to a coal mine screening device.

Background technique

Coal mines are the areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and open-pit coal mines; when the coal seam is far from the surface, it is generally chosen to dig underground tunnels to mine coal, which is underground coal mines; When the distance between the surface is very close, it is generally chosen to directly peel off the surface soil layer to excavate coal, which is an open-pit coal mine; most of the coal mines in our country belong to underground coal mines; most of the existing coal mine screening devices have single performance, and when screening ore , the input ore is placed directly above the screen, and the large ore is easy to damage the screen under the action of its own gravity, which seriously affects the processing progress; at the same time, the ore cannot be effectively classified and may cause blockage. Therefore, it is particularly important to solve the above problems.

SUMMARY OF THE INVENTION

The invention overcomes the deficiencies of the prior art and provides a coal mine screening device which is convenient for classification, prevents clogging, has high working efficiency and avoids damage to the screen body.

For reaching the above-mentioned purpose, the technical scheme adopted in the present invention is:

A coal mine screening device, comprising a casing, a separating roller, a collecting hopper and a screen body are arranged in the casing cavity in sequence from top to bottom, and the separating roller is connected to the casing through horizontal rotation at both ends. , the left and right ends of the separation roller penetrate through the casing, and an eccentric wheel is sleeved on the left end and the right end, and the right end of the separation roller is also sleeved with a driven pulley and a swing wheel in turn. The driven pulley The belt is connected to the driving pulley, the driving pulley is sleeved on the output end of the motor, the motor is installed on the top of the casing, the swinging wheel is provided with a swing rod, and the separating roller is evenly distributed with rotating rods , the upper material guide rod is fixedly connected to the shell at the corresponding position above the separation roller. The upper material guide rod is inclined and distributed evenly along the extension direction of the axis of the separation roller. The corresponding position below the separation roller The lower material guide rod is fixedly connected to the casing, the lower material guide rod is inclined and distributed evenly along the extension direction of the axis of the separation roller, and the rotating rod is connected with the upper material guide rod and the lower guide rod. The material rods are staggered, the top of the casing at the corresponding position of the upper material guide rod is provided with a feeding hopper, and the side of the casing at the corresponding position of the lower material guide rod is provided with a discharge port. A receiving box is installed on the casing at the position corresponding to the opening, the collecting hopper is placed under the separating roller, and a set of pressure-bearing rods are symmetrically arranged on the side of the collecting hopper near the top, and the pressure-bearing rods correspond to There are buffer openings on the casings at the positions, the pressure-bearing rods pass through the buffer openings, and a pulley is rotatably sleeved at the end. A guide rod is provided on the side of the pressure-bearing rod between the contact surfaces of the buffer opening, and a guide groove is provided on the side of the buffer opening between the pressure-bearing rod and the contact surface of the buffer opening. The rod is placed in the guide groove, a buffer spring is arranged between the pressure-bearing rod and the bottom of the buffer opening, the sieve body is placed under the collecting hopper, the sieve body is inclined, and the sieve body is inclined. One end is hinged in the casing cavity, the other end of the sieve body penetrates the casing, and ear seats are installed on both sides of the sieve body outside the casing cavity, and the brackets are hinged on the ear seats. The brackets are all hinged with connecting rods, and the connecting rods are hinged on the swing rod.

A further improvement of the present invention is that a cleaning door is provided on the side of the casing near the bottom end.

A further improvement of the present invention is that the cross section of the collecting hopper is funnel-shaped.

Compared with the prior art, the advantages of the present invention are:

Small ores enter the collecting hopper through the gap between the guide rods arranged at intervals, and the large ore is placed above the upper guide rod. With the rotation of the separation roller, the rotating rod on it can carry the large ore to rotate. The large ore will be collected in the receiving box through the discharge port under the action of its own gravity; the small ore entering the collecting hopper can be discharged into the screen body through the bottom under the action of the collecting hopper swinging up and down. The mixed sand and other impurities are collected at the bottom of the shell under the action of the screen body swinging up and down; the cleaning door is convenient for cleaning the sand and other impurities at the bottom of the shell.

Description of drawings

1 is a schematic front view of the structure of a coal mine screening device of the present invention;

2 is a schematic front sectional view of the structure of a coal mine screening device of the present invention;

3 is a schematic right side view of the structure of a coal mine screening device of the present invention;

4 is a schematic top view of the structure of a coal mine screening device of the present invention;

Fig. 5 is the A-direction enlarged structural schematic diagram of a coal mine screening device of the present invention shown in Fig. 1;

FIG. 6 is a schematic view of the enlarged structure in the direction B of a coal mine screening device of the present invention shown in FIG. 3 .

Description of reference numbers:

1. Shell, 2. Feeding hopper, 3. Separating roller, 4. Collecting hopper, 5. Screen body, 6. Eccentric wheel, 7. Driven pulley, 8. Swing pulley, 9. Driving pulley, 10. Motor , 11. Swing rod, 12. Rotating rod, 13. Upper guide rod, 14. Lower guide rod, 15. Discharge port, 16. Receiving box, 17. Pressure rod, 18. Buffer opening, 19. pulley, 20. guide rod, 21. guide groove, 22. buffer spring, 23. ear seat, 24. bracket, 25. connecting rod, 26. cleaning door.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, a coal mine screening device provided by the present invention includes a casing 1 and a feeding hopper 2, and is characterized in that: the cavity of the casing 1 is provided with separation rollers 3, The collecting hopper 4 and the sieve body 5, the separating roller 3 are connected to the casing 1 through horizontal rotation at both ends, the left and right ends of the separating roller 3 both penetrate the casing 1, and the left and right ends are sleeved with eccentrics 6. The right end of the separation roller 3 is also sleeved with a driven pulley 7 and a swing pulley 8 in turn. The driven pulley 7 is connected to the driving pulley 9 with a belt, and the driving pulley 9 is sleeved on the output end of the motor 10. , the swinging wheel 8 is provided with a swing rod 11, the separation roller 3 is evenly distributed with rotating rods 12, the upper material guide rod 13 is fixedly connected to the shell 1 at the corresponding position above the separation roller 3, and the upper material guide rod 13 is inclined. And evenly distributed along the extension direction of the axis of the separation roller 3, the lower material guide rod 14 is fixedly connected to the shell 1 at the corresponding position below the separation roller 3, the lower material guide rod 14 is inclined and distributed evenly along the extension direction of the axis of the separation roller 3, and rotates The rods 12 are all staggered with the upper guide rod 13 and the lower guide rod 14. The top of the casing 1 at the corresponding position of the upper guide rod 13 is provided with a feeding hopper 2, and the side of the casing 1 at the corresponding position of the lower guide rod 14. There is a discharge port 15, a receiving box 16 is installed on the shell 1 at the corresponding position of the discharge port 15, the collecting hopper 4 is placed under the separation roller 3, the cross-section of the collecting hopper 4 is funnel-shaped, and the side of the collecting hopper 4 is close to the top A set of pressure-bearing rods 17 are arranged symmetrically in position, and buffer openings 18 are provided on the housing 1 at the corresponding positions of the pressure-bearing rods 17 . Meshing with the eccentric wheel 6, the side of the pressure-bearing rod 17 between the pressure-bearing rod 17 and the contact surface of the buffer opening 18 is provided with a guide rod 20, and the side of the buffer opening 18 between the pressure-bearing rod 17 and the contact surface of the buffer opening 18 is provided. There is a guide groove 21, the guide rod 20 is placed in the guide groove 21, a buffer spring 22 is provided between the pressure-bearing rod 17 and the bottom of the buffer opening 18, the screen body 5 is placed under the collecting hopper 4, the screen body 5 is inclined, and the screen body One end of 5 is hinged in the cavity of the shell 1, the other end of the screen body 5 penetrates the shell 1, and ear seats 23 are installed on both sides of the screen body 5 placed outside the cavity of the shell 1, and the brackets 24 are hinged on the ear seats 23. It is hinged with the connecting rod 25 , and the connecting rod 25 is hinged on the swing rod 11 .

A cleaning door 26 is provided on the side of the casing 1 near the bottom end.

When working, start the motor 10 first, then put the ore through the feeding hopper 2, the ore falls on the upper guide rod 13, and the small ore enters the collecting hopper 4 through the gap between the guide rods arranged at intervals, The large ore is placed above the upper guide rod 13, and with the rotation of the separation roller 3, the rotating rod 12 on it can carry the large ore to rotate. The rod 12 is separated. Since the lower connecting rod 25 is inclined, the large ore will be collected in the receiving box 16 through the discharge port 15 under the action of its own gravity, and the small ore entering the collecting hopper 4 will be collected in the collecting hopper. 4. Under the action of swinging up and down, it can be discharged into the screen body 5 through the bottom, and the small ore will collect the mixed sand and other impurities at the bottom of the shell 1 under the action of the screen body 5 swinging up and down, and there are no small impurities such as sand and soil. The ore is finally discharged from the casing 1 through the screen body 5, and the impurities such as sand and soil at the bottom of the casing 1 are easily cleaned through the cleaning door 26.

The working principle of the present invention: the motor 10 drives the driving pulley 9, the driving pulley 9 drives the driven pulley 7, the driven pulley 7 drives the separation roller 3 to rotate, the separation roller 3 drives the rotating rod 12, and simultaneously drives the coaxial eccentric wheel 6 and swing. The wheel 8, the eccentric wheel 6 engage the pulley 19, the pulley 19 presses the pressure-bearing rod 17, the pressure-bearing rod 17 presses the collecting hopper 4, the swing wheel 8 drives the swing rod 11, and the swing rod 11 can drive the connecting rod 25 to move up and down, connecting The rod 25 drives the support 24 to move up and down, and the support 24 drives the screen body 5 to move back and forth.

The parts of the present invention that are not described in detail are prior art.

Claims (3)

1. The utility model provides a coal mine screening plant, its characterized in that, includes casing (1), casing (1) intracavity from the top down is equipped with separation roller (3), collecting hopper (4) and screen frame (5) in proper order, separation roller (3) are the level form through both ends and rotate to be connected on casing (1), separation roller (3) left end and right-hand member all run through casing (1), and the cover is equipped with eccentric wheel (6) on left end and right-hand member, the right-hand member of separation roller (3) still overlaps in proper order and is equipped with driven pulley (7) and oscillating wheel (8), driven pulley (7) belt connection driving pulley (9), driving pulley (9) cover is established on the output of motor (10), motor (10) are installed casing (1) top, be equipped with pendulum rod (11) on oscillating wheel (8), evenly distributed is equipped with dwang (12) on separation roller (3), the separation roller (3) top corresponds the position go up fixed connection and goes up guide bar (13) on casing (1), go up guide bar (13) slope setting, and follow separation roller (3) axis extending direction evenly distributed, separation roller (3) below corresponds the position go up fixed connection down guide bar (14) on casing (1), down guide bar (14) slope setting, and follow separation roller (3) axis extending direction evenly distributed, dwang (12) all with go up guide bar (13) with guide bar (14) are crisscross each other down, go up guide bar (13) corresponding position casing (1) top is equipped with feeder hopper (2), down guide bar (14) corresponding position casing (1) lateral part is equipped with bin outlet (15), bin outlet (15) corresponding position department install on casing (1) and connect workbin (16), the separating roller is characterized in that the aggregate bin (4) is arranged below the separating roller (3), a group of pressure bearing rods (17) are symmetrically arranged on the side surface of the aggregate bin (4) close to the top, buffering openings (18) are arranged on the shell (1) corresponding to the pressure bearing rods (17), the pressure bearing rods (17) penetrate through the buffering openings (18) and are sleeved with pulleys (19) in a rotating mode at the end parts, the pulleys (19) are meshed with the eccentric wheels (6), guide rods (20) are arranged on the side parts of the pressure bearing rods (17) between the pressure bearing rods (17) and the contact surfaces of the buffering openings (18), guide grooves (21) are arranged on the side parts of the buffering openings (18) between the pressure bearing rods (17) and the contact surfaces of the buffering openings (18), the guide rods (20) are arranged in the guide grooves (21), and buffering springs (22) are arranged between the pressure bearing rods (17) and the bottoms of the buffering openings (18), sieve body (5) are arranged in collecting hopper (4) below, sieve body (5) slope sets up, sieve body (5) one end articulates casing (1) intracavity, the sieve body (5) other end runs through casing (1) is arranged in casing (1) intracavity ear seat (23) are installed to sieve body (5) both sides, articulated support (24) are gone up in ear seat (23), support (24) all articulate with connecting rod (25), connecting rod (25) articulate on pendulum rod (11).

2. A coal mine screening apparatus as claimed in claim 1, wherein a trash door (26) is provided on the side of the housing (1) adjacent the lower end thereof.

3. A coal mine screening apparatus as claimed in claim 1, wherein the collection hopper (4) is funnel shaped in cross-section.

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