Coal mine crushing device with screening function

Abstract

The invention relates to the field of coal, in particular to a coal mine crushing device with a screening function, which comprises a crusher, a conveyor belt, a connecting plate, a baffle plate, a mounting rod, a mounting plate and the like, the crusher is fixedly connected with two connecting plates; a conveying belt is mounted between the two connecting plates; a conveying belt feeding hole is formed in the lower side of a crusher discharging hole; screening equipment used for screening crushed coal is arranged between a discharging opening of the crusher and an inlet of the conveying belt. Two mounting rods are mounted on each connecting plate; one mounting plate is connected between the two mounting rods on the same connecting plate; mounting grooves are formed in the opposite surfaces of the two mounting plates; and three groups of baffle plates for intercepting coal dust are arranged on the two connecting plates. In the technical scheme provided by the invention, by designing the baffle plate which is easy to disassemble, a worker can quickly disassemble and reinstall the baffle plate so as to meet different working requirements, for example, sampling equipment is installed, and the size does not need to be measured again or the size of the dustproof cover shell does not need to be adjusted.

Description

Technical Field

[0001] The invention relates to the field of coal, and in particular to a coal mine crushing device with a screening function. Background Art

[0002] During the coal crushing and transportation process, a large amount of dust will be generated, which not only pollutes the environment, but also may threaten the health of workers. In order to control the spread of dust, a dust cover needs to be set up. However, the existing coal crushing equipment needs to be regularly inspected during use. During maintenance, the dust cover needs to be disassembled for maintenance, and it needs to be reinstalled after maintenance, which not only wastes a lot of time and labor, but also causes coal splashing during the coal crushing process. Therefore, the dust cover installed on the coal crushing equipment is mostly made of hard materials. There are some problems with this design: First, after the dust cover is disassembled, it is difficult to store it due to its large size. Summary of the invention

[0003] In order to overcome the shortcomings of the existing dustproof cover that the crushing equipment is inconvenient to repair, a lot of time and labor are wasted, and it is inconvenient to store after disassembly, the present invention provides a coal mine crushing device with a screening function.

[0004] The technical scheme is: a coal mine crushing device with screening function, including a crusher, a conveyor belt and a connecting plate; the crusher is fixedly connected to two connecting plates; a conveyor belt is installed between the two connecting plates; the conveyor belt feed port is located at the lower side of the crusher discharge port; a screening device for screening the crushed coal is arranged between the crusher discharge port and the conveyor belt entrance; it also includes a shielding plate, a mounting rod and a mounting plate; two mounting rods are installed on each connecting plate; a mounting plate is commonly connected between the two mounting rods on the same connecting plate; mounting grooves are provided on the opposite surfaces of the two mounting plates; three groups of shielding plates for intercepting coal dust are arranged on the two connecting plates; one group of shielding plates is horizontally embedded and connected with the mounting grooves of the two mounting plates; the other two groups of shielding plates are vertically connected with the two mounting rods corresponding to each connecting plate; the three groups of shielding plates are respectively located on the upper side, left side and right side of the conveyor belt; each single shielding plate is provided with a socket and a latch; a spring card ball is arranged in the socket; a card groove is arranged on the latch; two adjacent shielding plates are plugged in through the structure of the spring card ball.

[0005] Optionally, it also includes a winding shaft and a flexible connecting piece; each set of shielding plates is equipped with a winding shaft; the winding shaft is installed on a mounting rod; a motor 1 is installed on the mounting rod, and the output end of each motor 1 is connected to the adjacent winding shaft; each shielding plate is composed of a number of shielding plates, and the shielding plates are connected to each other by flexible connecting plates.

[0006] Optionally, it also includes a first rotating shaft; the first rotating shaft is arranged on the mounting rod; the first rotating shaft is fixedly connected to the adjacent mounting plate; the second motor is installed on the mounting rod; the output end of the second motor is connected to the adjacent first rotating shaft.

[0007] Optionally, it also includes a wire taking-up box, a scraper, and a cable; a wire taking-up box is installed on the connecting plate, and the wire taking-up box is located at both ends of the connecting plate; a rope is rolled up on each wire taking-up box; a scraper is arranged on the connecting plate; the other ends of all ropes are connected to adjacent scrapers; and the scrapers are in contact with three sets of shielding plates.

[0008] Optionally, it also includes nozzles and water pipes; each shielding plate is provided with a plurality of nozzles for wetting the coal dust; each shielding plate is provided with water pipes; the water pipes are connected with the nozzles; the water pipes on adjacent shielding plates are connected by plugging.

[0009] Optionally, a sliding groove is provided on the connecting plate.

[0010] Optionally, both the mounting rod and the mounting plate are chamfered.

[0011] Optionally, the scraper is composed of a rotating part and a fixed part, the fixed part is rotatably connected to the rotating part; the fixed part is provided with a DD motor; and the output end of the DD motor is connected to the rotating part.

[0012] Optionally, an anti-corrosion coating is provided on the shielding plate.

[0013] Optionally, the contact side of the scraper and the shielding plate is covered with a rubber layer.

[0014] Beneficial effects of the present invention: In the technical solution provided by the present invention: the present invention designs an easily detachable shielding plate, which workers can quickly disassemble and reinstall to adapt to different work requirements, such as installing sampling equipment, without re-measuring or adjusting the size of the dust cover.

[0015] When the crusher is being repaired, the motor can be used to drive the reel to reel in the shielding plate, so that workers can directly repair components such as the conveyor belt. After the repair is completed, the shielding plate is unwound through the reel, and the worker pulls the shielding plate to unfold it. There is no need to remove the shielding plate, reducing the workload of workers.

[0016] A soft connecting piece is designed to be located in the gap between the hard baffles to prevent dust accumulation and avoid the problem of the baffle being unable to be rolled up.

[0017] A first rotating shaft is designed, and the first rotating shaft is driven to rotate by a motor, so that the shielding plate is rotated to a position convenient for operation, which is convenient for workers to install or disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a coal mine crushing device with screening function according to the present invention; Figure 2 It is a schematic diagram of the combined three-dimensional structure of the crusher, the shielding plate, the mounting rod, the mounting plate and the winding shaft of the present invention; Figure 3 It is a schematic diagram of the combined three-dimensional structure of the crusher, the shielding plate, the mounting rod, the mounting plate and the scraper of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the shielding plate and the first rotating shaft combination of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the shielding plate and the flexible connecting piece combined according to the present invention; Figure 6 For the present invention Figure 5 A magnified image of the area in the middle; Figure 7 It is a schematic diagram of the three-dimensional structure of the shielding plate, the flexible connecting piece and the nozzle combination of the present invention; Figure 8 It is a schematic diagram of the combined three-dimensional structure of the crusher, baffle plate, scraper, cable and chute of the present invention; Fig. 9 A diagram showing the rotation state of the first rotating shaft and the shielding plate of the present invention; Fig.10 This is a diagram showing the rotation state of the scraper and the rotating part of the present invention.

[0019] The meanings of the reference numerals in the figure: 1-crusher, 2-shielding plate, 3-flexible connecting plate, 4-nozzle, 5-conveyor belt, 101-mounting rod, 102-mounting plate, 103-reeling shaft, 104-first rotating shaft, 105-second rotating shaft, 106-water pipe, 111-connecting plate, 201-reeling box, 202-scraper, 203-cable, 1001-slide, 2001-socket, 2002-pin, 20201-rotating part, 20202-fixed part. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0021] Example 1 like Figure 1-10 As shown, a coal mine crushing device with screening function includes a crusher 1, a conveyor belt 5 and a connecting plate 111; the crusher 1 is fixedly connected to two connecting plates 111; a supporting foot is arranged at the lower side of each connecting plate 111; a conveyor belt 5 is installed between the two connecting plates 111; the feeding port of the conveyor belt 5 is located at the lower side of the discharging port of the crusher 1; a screening device is arranged between the discharging port of the crusher 1 and the inlet of the conveyor belt 5; It also includes a baffle plate 2, a mounting rod 101 and a mounting plate 102; two mounting rods 101 are installed on the upper side of each connecting plate 111; a mounting plate 102 is commonly connected between the two mounting rods 101 on the same connecting plate 111; mounting grooves are provided on the opposite surfaces of the two mounting plates 102; three groups of baffle plates 2 are arranged on the two connecting plates 111; one group of baffle plates 2 is horizontally embedded in the mounting grooves of the two mounting plates 102; the other two groups of baffle plates 2 are vertically connected to the two mounting rods 101 corresponding to each connecting plate 111; the three groups of baffle plates 2 are respectively located on the upper side, left side and right side of the conveyor belt 5; a socket 2001 and a latch 2002 are provided on each single baffle plate 2; a spring ball is provided in the socket 2001; a latch groove is provided on the latch 2002; two adjacent baffle plates 2 are connected by a spring ball structure.

[0022] It also includes a winding shaft 103 and a flexible connecting piece 3; a winding shaft 103 is installed on each group of shielding plates 2; the winding shaft 103 is installed on the mounting rod 101; a motor 1 is installed on the mounting rod 101, and the output end of each motor 1 is connected to the adjacent winding shaft 103; each shielding plate 2 is composed of a number of shielding plates, and the shielding plates are connected to each other through a flexible connecting piece 3.

[0023] It also includes a first rotating shaft 104 ; the first rotating shaft 104 is arranged on the mounting rod 101 ; the first rotating shaft 104 is fixedly connected to the adjacent mounting plate 102 ; a second motor is installed on the mounting rod 101 ; the output end of the second motor is connected to the adjacent first rotating shaft 104 .

[0024] It also includes a wire taking-up box 201, a scraper 202, and a cable 203; the wire taking-up box 201 is installed on the connecting plate 111, and the wire taking-up box 201 is located at both ends of the connecting plate 111; a rope is rolled up on each wire taking-up box 201; a scraper 202 is provided on the connecting plate 111; the other ends of all ropes are connected to adjacent scrapers 202; and the scrapers 202 are in contact with three groups of shielding plates 2.

[0025] It also includes a nozzle 4 and a water pipe 106; a plurality of nozzles 4 are provided on each shielding plate 2; a water pipe 106 is provided on each shielding plate 2; the water pipe 106 is connected with the nozzle 4; the water pipes 106 on adjacent shielding plates 2 are connected by plugging.

[0026] A chute 1001 is provided on the connecting plate 111 for collecting a large amount of water scraped off by the scraper 202 when cleaning the shielding plate 2, so as to prevent the water from flowing onto the conveyor belt 5 and causing the coal to be over-wet.

[0027] The mounting rod 101 and the mounting plate 102 are both chamfered to avoid scratching the workers during maintenance.

[0028] The scraper 202 is composed of a rotating part 20201 and a fixed part 20202, and the fixed part 20202 is rotatably connected to the rotating part 20201; the fixed part 20202 is provided with a DD motor; the output end of the DD motor is connected to the rotating part 20201, and the rotating part 20201 is driven to rotate by the DD motor to prevent the rotating part 20201 from adhering to a large amount of coal powder when the scraper 202 passes the lower side of the sampling equipment, thereby reducing the cleaning effect of the rotating part 20201 on the baffle plate 2.

[0029] The shielding plate 2 is provided with an anti-corrosion coating.

[0030] The contact side of the scraper 202 with the shielding plate 2 is covered with a rubber layer to prevent the shielding plate 2 from being damaged when the scraper 202 scrapes the shielding plate 2 .

[0031] The following working principles of the present invention are described by taking a group of shielding plates 2 as an example.

[0032] The worker first installs the mounting rod 101 and the conveyor belt 5 on the crusher 1; then, the worker installs the shielding plate 2 on the mounting plate 102. The specific installation method is: the worker inserts the left and right sides of the shielding plate 2 into the mounting grooves on the mounting plate 102, and plugs and fixes the adjacent shielding plates 2 to each other, then the worker starts the crusher 1, and pours the coal into the crusher 1 for crushing. The crushed coal is screened by the screening device between the discharge port of the crusher 1 and the entrance of the conveyor belt 5, and then the coal falls onto the conveyor belt 5 through the outlet of the crusher 1 and is transported away by the conveyor belt 5. In this process, the function of the shielding plate 2 is to block the coal dust and prevent it from spreading into the air, thereby reducing air pollution.

[0033] If it is necessary to install a sampling device on the conveyor belt 5 to detect the particle size of the crushed coal, the workers can follow the steps below: Now at the installation position of the sampling device, remove the corresponding baffle plate 2; when removing, just separate the corresponding baffle plate 2 from the adjacent baffle plate 2, and then install the sampling device. It should be noted that the width of the sampling port of the sampling device is greater than the width of the connecting port formed after removing the baffle plate 2.

[0034] When the crusher 1 needs to be repaired after use, the motor 1 can be used to drive the reel 103 to reel in the shielding plate 2, so that the worker can directly repair the conveyor belt 5 and other components. After the repair is completed, the shielding plate 2 is unwound by the reel 103, and the worker pulls the shielding plate 2 to unfold it, without removing the shielding plate 2, which is convenient for repair and reduces the workload of the workers. It should be noted that the two shielding plates 2 of the present invention are connected by plugging, and the width of the baffles on the two shielding plates 2 is combined to be the width of a complete baffle, so as to avoid the shielding plates 2 protruding at the connection between the shielding plates 2 when the shielding plates 2 are rolled up.

[0035] Furthermore, each shielding plate 2 is composed of a plurality of hard shielding plates, and the shielding plates are connected by a flexible connecting plate 3, so as to prevent coal dust from getting stuck in the gap and causing the shielding plate 2 to be unable to be rolled up.

[0036] In order to facilitate the installation and removal of the shielding plate 2, the present invention is designed with a first rotating shaft 104. When the shielding plate 2 is removed, the shielding plate 2 located between the two mounting plates 102 is rotated clockwise from the front to the back through the action of the first rotating shaft 104, so that the shielding plate 2 is tilted downward. At the same time, the shielding plate 2 in the inverted U-shaped mounting hole formed by the mounting rods 101 and the mounting plates 102 on the left and right sides of the conveyor belt 5 is driven by the first rotating shaft 104 to rotate, so that the shielding plate 2 is tilted downward. After rotation, the shielding plate 2 is as shown in FIG. Fig. 9 shown.

[0037] In order to solve the problem that coal dust adheres to the shielding plate 2 and increases the difficulty of installation, the present invention is designed with a scraper 202. The cable 203 is rolled up through the take-up box 201 to pull the scraper 202 back and forth to clean the dust on the shielding plate 2. The scraper 202 is composed of a rotating part 20201 and a fixed part 20202. Since the sampling device will move the coal during sampling, causing the coal dust to move upward and gather at the sampling port of the sampling device, when the scraper 202 passes the lower side of the sampling device, a large amount of coal dust will adhere to the rotating part 20201. In order to avoid a large amount of coal dust adhering to the rotating part 20201 when the scraper 202 passes the lower side of the sampling device, thereby affecting the cleaning effect of the scraper 202 on the shielding plate 2, when the scraper 202 passes the lower side of the sampling device, the DD motor drives the rotating part 20201 to rotate so that it appears as follows. Fig.10 to avoid dust adhesion.

[0038] Since the conveyor belt 5 is driven to rotate by a number of conveyor rollers, and the conveyor rollers generate heat during operation, during the transportation of coal, part of the powder will fall through the gap between the connecting plates 111 and adhere to the conveyor rollers. When a large amount of coal dust adheres to the conveyor rollers and the temperature of the conveyor rollers is too high, the coal dust may spontaneously combust. In order to prevent the spontaneous combustion of coal dust and enhance the cleaning effect, the present invention is designed with a nozzle 4, which is installed on the baffle plate 2 to spray water to reduce dust and flush the baffle plate 2. At the same time, in order to prevent water from flowing directly down from the conveyor belt 5, a chute 1001 is provided on the connecting plate 111, and the lower side of the scraper 202 is located in the chute 1001. The water flows along the scraper 202 to the chute 1001 and flows out through the drain port to prevent the water from flowing directly down from the conveyor belt 5.

[0039] The plug-in principle between the shielding plates 2 is that each shielding plate 2 is provided with a socket 2001 and a plug 2002 ; the worker simply inserts the plug 2002 into the socket 2001 on the adjacent shielding plate 2 .

[0040] The close connection between the two shielding plates of the present invention and the automatic cleaning function ensure that the screening equipment can continuously and stably perform screening operations, improve the screening efficiency and accuracy, and meet the separation requirements for coal particles of different particle sizes.

[0041] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A coal mine crushing device with a screening function, comprising a crusher (1), a conveyor belt (5) and a connecting plate (111); the crusher (1) is fixedly connected to two connecting plates (111); a conveyor belt (5) is installed between the two connecting plates (111); an inlet of the conveyor belt (5) is located below an outlet of the crusher (1); a screening device for screening crushed coal is arranged between the outlet of the crusher (1) and an inlet of the conveyor belt (5); the device is characterized in that: It also includes a shielding plate (2), a mounting rod (101) and a mounting plate (102); two mounting rods (101) are mounted on each connecting plate (111); a mounting plate (102) is commonly connected between the two mounting rods (101) on the same connecting plate (111); mounting grooves are provided on the opposite surfaces of the two mounting plates (102); three groups of shielding plates (2) for intercepting coal dust are arranged on the two connecting plates (111); one group of shielding plates (2) is horizontally connected to the two mounting plates (102); ) are embedded and connected in the mounting grooves of the connecting plates (111); the other two groups of shielding plates (2) are vertically connected to the two mounting rods (101) corresponding to each connecting plate (111); the three groups of shielding plates (2) are respectively located on the upper side, left side and right side of the conveyor belt (5); each single shielding plate (2) is provided with a plug hole (2001) and a latch pin (2002); a spring clamping ball is provided in the plug hole (2001); a clamping groove is provided on the latch pin (2002); and two adjacent shielding plates (2) are plugged in through the spring clamping ball structure.

2. A coal mine crushing device with screening function according to claim 1, characterized in that: It also includes a reel (103) and a flexible connecting piece (3); each set of shielding plates (2) is mounted with a reel (103); the reel (103) is mounted on a mounting rod (101); a motor (1) is mounted on the mounting rod (101), and the output end of each motor (1) is connected to an adjacent reel (103); each shielding plate (2) is composed of a plurality of shielding plates, and the shielding plates are connected to each other via a flexible connecting piece (3).

3. A coal mine crushing device with screening function according to claim 2, characterized in that: It also includes a first rotating shaft (104); the first rotating shaft (104) is arranged on the mounting rod (101); the first rotating shaft (104) is fixedly connected to the adjacent mounting plate (102); a second motor is installed on the mounting rod (101); the output end of the second motor is connected to the adjacent first rotating shaft (104).

4. The coal mine crushing device with screening function according to claim 1 is characterized in that: It also includes a wire take-up box (201), a scraper (202), and a cable (203); the wire take-up box (201) is installed on the connecting plate (111), and the wire take-up box (201) is located at both ends of the connecting plate (111); a rope is rolled up on each wire take-up box (201); a scraper (202) is arranged on the connecting plate (111); the other ends of all the ropes are connected to adjacent scrapers (202); and the scrapers (202) are in contact with the three sets of shielding plates (2).

5. The coal mine crushing device with screening function according to claim 2 is characterized in that: It also includes a nozzle (4) and a water pipe (106); each shielding plate (2) is provided with a plurality of nozzles (4) for wetting the coal dust; each shielding plate (2) is provided with a water pipe (106); the water pipe (106) is connected to the nozzle (4); and the water pipes (106) on adjacent shielding plates (2) are connected by plugging.

6. A coal mine crushing device with screening function according to claim 4, characterized in that: A sliding groove (1001) is provided on the connecting plate (111).

7. The coal mine crushing device with screening function according to claim 3 is characterized in that: The mounting rod (101) and the mounting plate (102) are both chamfered.

8. The coal mine crushing device with screening function according to claim 4 is characterized in that: The scraper (202) is composed of a rotating part (20201) and a fixed part (20202), wherein the fixed part (20202) is rotationally connected to the rotating part (20201); the fixed part (20202) is provided with a DD motor; and the output end of the DD motor is connected to the rotating part (20201).

9. The coal mine crushing device with screening function according to claim 5, characterized in that: An anti-corrosion coating is provided on the shielding plate (2).

10. A coal mine crushing device with screening function according to claim 9, characterized in that: The contact side of the scraper (202) and the shielding plate (2) is covered with a rubber layer.

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