Coal sample drum-type screening device

Abstract

The utility model relates to the field of coal sample screening, in particular to a drum-type screening device for coal samples. The utility model provides a drum-type screening device for coal samples, which can be used for extruding and pushing out the coal samples clamped on a screening net while screening the coal samples step by step, preventing the screening net from being blocked, improving the screening efficiency and improving the use convenience. A roller type screening device for coal samples comprises a foot stool, a screening net, rollers and the like, the upper portion of the foot stool is rotatably connected with the screening net, and the left side and the right side of the screening net are connected with the rollers. According to the coal sample screening device, coal samples of different sizes are screened step by step through rotation of the screening net, so that the coal samples of different sizes fall into the corresponding coal receiving buckets respectively, and then the coal samples clamped on the screening net are extruded and cleaned through the extrusion cylinder and movement; therefore, coal samples clamped on the screening net can be extruded and pushed out while the coal samples are screened step by step, the screening net is prevented from being blocked, the screening efficiency is improved, and the use convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the coal sample screening field especially relates to a coal sample drum type screening device. BACKGROUND

[0002] Coal sample refers to small batch samples collected from coal, which is used for analyzing and researching various physical, chemical and combustion characteristics of coal, and the collection and processing of coal sample is very important in coal industry, scientific research institutions and laboratories, and coal sample screening is an important link in the process of coal analysis and processing, which aims to separate coal samples of different particle sizes for further analysis and research.

[0003] The existing coal sample screening is usually to pour the coal sample into the drum type screening equipment for screening, however, the current drum type screening equipment does not have the function of extruding and pushing out the coal sample, and in the process of screening, the coal sample is easy to be stuck on the screening net, causing the screening net to be blocked, thereby resulting in low screening efficiency and inconvenient use.

[0004] Therefore, it is necessary to design a coal sample drum type screening device which can screen the coal sample step by step and extrude and push out the coal sample stuck on the screening net, prevent the screening net from being blocked, improve the screening efficiency and improve the convenience of use. UTILITY MODEL CONTENT

[0005] In order to overcome the shortcomings of the current drum type screening equipment which does not have the function of extruding and pushing out the coal sample, and in the process of screening, the coal sample is easy to be stuck on the screening net, causing the screening net to be blocked, thereby resulting in low screening efficiency and inconvenient use, the utility model provides a coal sample drum type screening device which can screen the coal sample step by step and extrude and push out the coal sample stuck on the screening net, prevent the screening net from being blocked, improve the screening efficiency and improve the convenience of use.

[0006] The technical scheme of the utility model is as follows: a coal sample drum type screening device, which comprises a foot stand, a screening net, a drum, a first motor, a driving wheel, a coal receiving hopper, an anti-blocking assembly and a dust suction assembly, the foot stand is rotatably connected with the screening net at the upper part, the screening net is connected with the drum on the left and right sides, the foot stand is connected with two first motors on the right upper side, the output shafts of the first motors are rotatably connected with the foot stand, the output shafts of the first motors are connected with the driving wheels, the driving wheels are in contact with the right drum, a plurality of coal receiving hoppers are connected with the foot stand, the anti-blocking assembly is arranged on the upper side of the foot stand for preventing the coal sample from blocking the screening net, and the dust suction assembly is arranged between the left coal receiving hopper and the anti-blocking assembly for adsorbing and treating the dust generated during screening.

[0007] In one embodiment, the screen holes on the screening net gradually decrease from left to right.

[0008] In one of the embodiments, the lower part of the coal receiving hopper is inclined.

[0009] In one of the embodiments, the anti-blocking assembly comprises a first support frame, a second motor, a screw rod, a sliding block, a connecting frame, an extrusion cylinder, a third motor and a rotating disc, the upper side of the foot support is connected with the first support frame, the left side of the first support frame is connected with the second motor, the upper part of the first support frame is rotatably connected with the screw rod, the screw rod passes through the first support frame and is connected with the output shaft of the second motor, the left and right two sliding blocks are threadedly connected on the screw rod, the sliding blocks are slidably connected with the first support frame, the connecting frame is connected between the lower parts of the sliding blocks, the extrusion cylinder is rotatably connected with the connecting frame, the left part of the left sliding block is connected with the third motor, the output shaft of the third motor is connected with the rotating disc, and the rotating disc is connected with the extrusion cylinder.

[0010] In one of the embodiments, the dust suction assembly comprises a gas pump, a ventilation pipe, an exhaust hood, a second support frame, a dust suction pipe and a filter ring, the rear side of the left coal receiving hopper is connected with the gas pump, the right upper side of the gas pump is connected with the ventilation pipe, the rear side of the upper part of the foot support is connected with the exhaust hood, the exhaust hood is connected with the tail end of the ventilation pipe, the left and right sides of the first support frame are connected with the second support frame, the dust suction pipe is connected between the second support frames, the dust suction pipe is connected with the gas pump, and the left rear part of the dust suction pipe is connected with the filter ring.

[0011] In one of the embodiments, the second support frame is L-shaped.

[0012] Beneficial effects: 1. The utility model discloses a coal sample screening device, which comprises a foot support, a first support frame, a second motor, a screw rod, a sliding block, a connecting frame, an extrusion cylinder, a third motor and a rotating disc.

[0013] 2. The utility model discloses a coal sample screening device, which comprises a foot support, a first support frame, a second motor, a screw rod, a sliding block, a connecting frame, an extrusion cylinder, a third motor and a rotating disc. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0015] Figure 2 It is the three-dimensional structure schematic diagram of the utility model's cylinder and motor.

[0016] Figure 3It is a three-dimensional structure schematic view of the air blower and the dust collector.

[0017] Figure 4 It is a three-dimensional structure schematic view of the sliding groove and the sliding block.

[0018] Figure 5 It is a three-dimensional structure schematic view of the extrusion cylinder and the screw rod.

[0019] Figure 6 It is a three-dimensional structure schematic view of the air pump, the exhaust hood and the dust suction pipe.

[0020] Marked as: 1-stand, 2-screening net, 3-rolling cylinder, 4-first motor, 5-driving wheel, 6-coal receiving hopper, 7-first support frame, 8-second motor, 801-screw rod, 9-sliding block, 10-connecting frame, 11-extrusion cylinder, 12-third motor, 13-rotating disc, 14-air pump, 15-ventilation pipe, 16-exhaust hood, 17-second support frame, 18-dust suction pipe, 19-filter ring. DETAILED DESCRIPTION

[0021] The utility model will be further described in detail below in combination with the drawings and specific embodiments, but not limit the protection scope and application scope of the utility model.

[0022] A coal sample rolling cylinder type screening device, such as Figures 1-6As shown, including foot stool 1, screening net 2, roller 3, first motor 4, drive wheel 5, coal bucket 6, first support frame 7, second motor 8, lead screw 801, sliding block 9, connecting frame 10, extrusion cylinder 11, third motor 12, rotating disc 13, air pump 14, ventilation pipe 15, exhaust hood 16, second support frame 17, dust suction pipe 18 and filter ring 19, the upper part of the foot stool 1 is rotatably connected with the screening net 2, the screen holes on the screening net 2 gradually become smaller from left to right, the screening net 2 is connected with the roller 3 on the left and right sides, the right part of the foot stool 1 is connected with two first motors 4, the output shafts of the first motors 4 are rotatably connected with the foot stool 1, the output shafts of the first motors 4 are connected with the drive wheels 5, the drive wheels 5 are in contact with the right roller 3, three coal buckets 6 are connected on the foot stool 1, the lower part of the coal bucket 6 is inclined, facilitating discharging, the upper side of the foot stool 1 is connected with the first support frame 7, the left side of the first support frame 7 is connected with the second motor 8, the upper part of the first support frame 7 is rotatably connected with the lead screw 801, the lead screw 801 passes through the first support frame 7 and is connected with the output shaft of the second motor 8, the lead screw 801 is connected with two sliding blocks 9 through threads, the sliding blocks 9 are slidably connected with the first support frame 7, the connecting frame 10 is connected between the lower parts of the sliding blocks 9, the lower part of the connecting frame 10 is rotatably connected with the extrusion cylinder 11, the left part of the left sliding block 9 is connected with the third motor 12, the output shaft of the third motor 12 is connected with the rotating disc 13, the rotating disc 13 is connected with the extrusion cylinder 11, the rear side of the left coal bucket 6 is connected with the air pump 14, the right part of the air pump 14 is connected with the ventilation pipe 15, the rear side of the upper part of the foot stool 1 is connected with the exhaust hood 16, the exhaust hood 16 is connected with the tail end of the ventilation pipe 15, the left and right sides of the first support frame 7 are connected with the second support frame 17, the second support frame 17 is L-shaped, the dust suction pipe 18 is connected between the second support frames 17, the dust suction pipe 18 is connected with the air pump 14, and the left rear part of the dust suction pipe 18 is connected with the filter ring 19.

[0023] When the coal sample needs to be screened, the device can be used, the foot support 1 is in contact with the ground, and then the coal sample is poured into the right roller 3, the coal sample enters the screening net 2, moves along the screening net 2, the screen holes on the screening net 2 gradually become smaller from left to right, then the first motor 4 is started, the driving wheel 5 is driven to rotate by the first motor 4, the right roller 3 is driven to rotate under the action of friction, and then the screening net 2 and the left roller 3 are driven to rotate, the coal samples of different sizes are screened step by step through the screening net 2, so that the largest coal sample remains in the screening net 2 and is discharged from the left roller 3, and the smallest, medium-sized and larger coal samples fall into the corresponding coal receiving hoppers 6 from the right, middle and left parts of the screening net 2 respectively and are discharged for collection, the lower parts of the coal receiving hoppers 6 are inclined surfaces, facilitating discharging, in the screening process, the third motor 12 is started, the rotating disc 13 is driven to rotate by the third motor 12, and then the extrusion cylinder 11 is driven to rotate, then the second motor 8 is started, the screw rod 801 is driven to rotate by the second motor 8, the sliding block 9 moves along the first support frame 7 under the action of threads, and then the connecting frame 10, the extrusion cylinder 11, the third motor 12 and the rotating disc 13 move, the coal sample stuck on the screening net 2 is extruded out by the extrusion cylinder 11, so that the coal sample falls into the screening net 2, thereby the coal sample can be screened step by step and the coal sample stuck on the screening net 2 can be extruded out, the screening net 2 is prevented from being blocked, the screening efficiency is improved, the convenience in use is improved, in the screening process, the air pump 14 is started at the same time, the dust generated in the screening process is sucked into the dust suction pipe 18 on the second support frame 17 by the air pump 14, the second support frame 17 is L-shaped, the impurities in the dust are filtered by the filter ring 19, at the same time, the gas is discharged from the ventilation pipe 15 by the air pump 14, the gas flows into the exhaust hood 16 and is discharged to blow up the dust in the coal sample, and then the dust suction is better, thereby the dust in the coal sample screening can be blown up and treated, the working environment is improved, the pollution is reduced, and the safety in use is improved, after the screening is completed, the first motor 4, the second motor 8, the third motor 12 and the air pump 14 are turned off, and then the device can be cleaned.

[0024] The above merely illustrates the embodiments of the present application and is not used to limit the present application. Any equivalent replacement made within the principles of the present application shall be included in the protection scope of the present application. The contents not described in detail in the present application belong to the prior art known by the technical personnel in the field.

Claims

1. A coal sample tumbling screening apparatus characterised in that: The utility model relates to a coal sample screening device, including foot stool (1), screening net (2), cylinder (3), first motor (4), drive wheel (5), coal receiving hopper (6), anti -blocking subassembly and dust absorption subassembly, screening net (2) is rotatably connected with the upper part of foot stool (1), the left and right sides of screening net (2) are connected with cylinder (3), the upper side of right part of foot stool (1) is connected with two first motors (4) in front and back, the output shaft of first motor (4) is rotatably connected with foot stool (1), the output shaft of first motor (4) is connected with drive wheel (5), and drive wheel (5) is contacted with the cylinder (3) of right part, a plurality of coal receiving hoppers (6) are connected on foot stool (1), the upper side of foot stool (1) is equipped with the anti -blocking subassembly for preventing coal sample from blocking screening net (2), and the dust absorption subassembly for carrying out adsorption treatment to the dust generated during screening is equipped between the coal receiving hopper (6) of left side and anti -blocking subassembly.

2. A coal sample drum sieve apparatus as claimed in claim 1 wherein: The screen holes on the screening net (2) gradually decrease from left to right.

3. A coal sample drum sieve apparatus as claimed in claim 2, wherein: The lower part of the coal receiving hopper (6) is a slope.

4. A coal sample drum sieve apparatus as claimed in claim 3 wherein: The anti -blocking subassembly includes first support frame (7), second motor (8), lead screw (801), sliding block (9), connecting frame (10), extrusion cylinder (11), third motor (12) and rotating disc (13), the upper side of foot stool (1) is connected with first support frame (7), the left side of first support frame (7) is connected with second motor (8), the upper part of first support frame (7) is rotatably connected with lead screw (801), lead screw (801) passes through first support frame (7) and is connected with the output shaft of second motor (8), the left and right two sliding blocks (9) are connected on lead screw (801) through thread, the sliding block (9) is slidably connected with first support frame (7), the lower part between sliding block (9) is connected with connecting frame (10), the lower part of connecting frame (10) is rotatably connected with extrusion cylinder (11), the left part of sliding block (9) is connected with third motor (12), the output shaft of third motor (12) is connected with rotating disc (13), and rotating disc (13) is connected with extrusion cylinder (11).

5. A coal sample drum sieve apparatus as claimed in claim 4 wherein: The dust absorption subassembly includes air pump (14), ventilation pipe (15), exhaust hood (16), second support frame (17), dust absorption pipe (18) and filter ring (19), the rear side of left coal receiving hopper (6) is connected with air pump (14), the upper side right of air pump (14) is connected with ventilation pipe (15), the rear side of upper part of foot stool (1) is connected with exhaust hood (16), and exhaust hood (16) is connected with the tail end of ventilation pipe (15), the left and right sides of first support frame (7) are connected with second support frame (17), and dust absorption pipe (18) is connected between second support frame (17), dust absorption pipe (18) is connected with air pump (14), and the left rear part of dust absorption pipe (18) is connected with filter ring (19).

6. A coal sample drum sieve apparatus as claimed in claim 5 wherein: The second support frame (17) is L-shaped.

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