Metal foreign matter detection equipment based on coal conveying belt

Abstract

The invention discloses metal foreign matter detection equipment based on a coal conveying belt, and particularly relates to the technical field of coal conveying, the metal foreign matter detection equipment comprises a first coal conveying belt, a second coal conveying belt is arranged below one end of the first coal conveying belt, and the first coal conveying belt and the second coal conveying belt are obliquely arranged; a first support is arranged at the end, close to the second coal conveying belt, of the first coal conveying belt, a metal detector is fixedly installed at the top end of the first support, and the metal detector is located above the first coal conveying belt. According to the device, automatic primary magnetic attraction cleaning is conducted on metal foreign matter doped in coal, conveying is conducted through the conveying piece, the metal foreign matter subjected to primary cleaning is discharged through the material guiding piece, the treatment effect of the metal foreign matter is improved, and the situation that the metal foreign matter enters next equipment to cause damage is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of coal conveyor, and specifically to a metal foreign object detection device based on a coal conveyor belt. Background Technique

[0002] A coal conveyor belt is a device for transporting coal, mainly composed of a belt body, rollers, a frame, and a tension device. It is widely used in mines, ports, power plants and other places. Using a coal conveyor belt can continuously and efficiently transport a large amount of coal, reduce labor costs, and reduce the risk of manual operations. When a coal conveyor belt transports coal, some metal foreign objects may be mixed in. If the metal foreign objects are not picked out from the coal, and the metal foreign objects are mixed with the coal and enter the next device, it may damage the next device. Therefore, metal foreign objects in the coal transported on the coal conveyor belt need to be detected and picked out. Traditional coal metal foreign object detection mostly uses metal detectors to detect metal foreign objects. When a metal foreign object is detected, the coal conveyor belt will stop immediately, and then the metal foreign object is picked out manually. This will affect the overall transmission efficiency of the coal conveyor belt for coal, and increase the labor intensity, which will pose a certain safety hazard to the operators; secondly, only by manually picking out metal foreign objects, larger metal foreign objects are very convenient to pick out, but small metal foreign objects buried in the coal are very difficult to pick out. Entering the next device later may damage the next device. For this reason, we propose a metal foreign object detection device based on a coal conveyor belt to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a metal foreign object detection device based on a coal conveyor belt to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A metal foreign object detection device based on a coal conveyor belt, including a first coal conveyor belt, a second coal conveyor belt is provided below one end of the first coal conveyor belt, the first coal conveyor belt and the second coal conveyor belt are inclined, a first bracket is provided at one end of the first coal conveyor belt close to the second coal conveyor belt, a metal detector is fixedly installed at the top of the first bracket, the metal detector is located above the first coal conveyor belt, a primary removal device is provided on one side of the first bracket close to the second coal conveyor belt, the primary removal device is located above the first coal conveyor belt, and a secondary removal device is provided on one side of the first coal conveyor belt close to the second coal conveyor belt.

[0005] Preferably, the primary removal device includes a mounting top frame. A magnetic suction cup is provided at the bottom end of the mounting top frame. A first mounting seat is fixedly installed on the outer side of the magnetic suction cup, and the first mounting seat is fixedly installed at the bottom end of the mounting top frame. A cleaning disc is provided on one side of the magnetic suction cup close to the first bracket. A partition plate is fixedly installed between the cleaning disc and the magnetic suction cup. A material collecting frame is provided on the outer side of the cleaning disc. The material collecting frame is inclined, and the material collecting frame is fixedly installed at the bottom end of the mounting top frame. A second mounting seat is fixedly installed on the outer side of the cleaning disc, and the second mounting seat is fixedly installed in the material collecting frame. A guiding member is provided on one side of the bottom end of the material collecting frame close to the first bracket. The guiding member is inclined. A scraping plate is fixedly installed at the bottom of one side of the inner wall of the material collecting frame close to the first bracket. A transmission member is provided on the outer sides of the magnetic suction cup and the cleaning disc. The transmission member is inclined.

[0006] Preferably, the transmission member includes two symmetrically distributed transmission side frames. The transmission side frames are fixedly installed at the bottom end of the mounting top frame. Two transmission rollers distributed vertically are rotatably installed at both ends of each transmission side frame. A side top roller is provided between the two transmission rollers on the same side. The side top roller is rotatably installed on the transmission side frame. A transmission belt is movably sleeved on the outer sides of the plurality of transmission rollers and the side top roller. A plurality of auxiliary rollers are evenly distributed and movably clamped at the bottom of the magnetic suction cup. The outer surface of the auxiliary roller contacts the inner wall of the transmission belt.

[0007] Preferably, the magnetic suction cup and the cleaning disc are located in the transmission belt, and the inner wall of the transmission belt contacts the lower surfaces of the magnetic suction cup and the cleaning disc.

[0008] Preferably, the end of the scraping plate away from the inner wall of the material collecting frame contacts the outer wall of the transmission belt.

[0009] Preferably, first motors are fixedly installed at both ends of each transmission side frame. The driving ends of the first motors are respectively fixedly installed with the shaft ends of the corresponding side top rollers.

[0010] Preferably, the guiding member includes two symmetrically distributed guiding rollers and two symmetrically distributed guiding side frames. The guiding side frames are fixedly installed at the bottom of the side ends of the material collecting frame. One of the guiding rollers is rotatably installed at the bottom of one end of the material collecting frame away from the guiding side frame, and the other guiding roller is rotatably installed at one end of the guiding side frame away from the material collecting frame. A guiding belt is movably sleeved on the outer sides of the two guiding rollers.

[0011] Preferably, a second motor is fixedly installed on one side of one of the guiding side frames away from the material collecting frame. The driving end of the second motor is fixedly installed with the shaft end of one of the guiding rollers.

[0012] Preferably, the secondary removal device includes two second brackets symmetrically distributed. The tops of the second brackets are rotatably installed with rotating tubes. The opposite ends of the rotating tubes are fixedly installed with inner brackets. The outer sides of the two groups of inner brackets are fixedly installed with adsorption cylinders. Both ends of the outer side of the adsorption cylinder are fixedly installed with side ring frames. The outer side of the adsorption cylinder is fixedly installed with a plurality of partition plates distributed in an annular array. The two ends of the partition plates are respectively fixedly installed with the inner sides of the corresponding side ring frames. A magnetic absorption cylinder is arranged in the adsorption cylinder. A cleaning cylinder is fixedly clamped at the bottom of the magnetic absorption cylinder close to the first coal conveyor belt. A mounting cross frame is fixedly installed at the side end of the magnetic absorption cylinder. One end of the mounting cross frame away from the magnetic absorption cylinder passes through the corresponding rotating tube and is fixedly installed with an L-shaped bracket. The L-shaped bracket is fixedly installed on the top of the corresponding second bracket. A material guiding inclined frame is fixedly installed on one side of the middle of the second bracket close to the first coal conveyor belt.

[0013] Preferably, a transmission gear ring is fixedly installed at one end of the rotating tube away from the inner bracket. The bottom of the transmission gear ring is meshed with a driving gear. The shaft end of the driving gear is rotatably installed on the corresponding second bracket. A third motor is fixedly installed on one side of the second bracket close to the driving gear. The driving end of the third motor is fixedly installed with the shaft end of the driving gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting a metal detector to detect metal foreign objects doped in coal, cooperating with the primary removal device, automatically and primarily magnetically clean the metal foreign objects doped in coal, using a transmission member for transmission, and using a material guiding member to discharge the primarily cleaned metal foreign objects, the treatment effect of metal foreign objects is improved, and it is prevented that metal foreign objects enter the next device and cause damage.

[0015] 2. By setting a secondary removal device, magnetically adsorb and transmit the metal foreign objects doped in coal for a second time, so as to further automatically clean and discharge the metal foreign objects doped in coal, and prevent metal foreign objects from entering the next device and causing damage.

[0016] 3. By setting a scraper, one end of the scraper away from the inner wall of the material gathering frame contacts the outer wall of the conveyor belt. Under the continuous transmission of the conveyor belt, the scraper scrapes and cleans the metal foreign objects remaining on the surface of the conveyor belt, so that the metal foreign objects remaining on the surface of the conveyor belt are scraped off, and the remaining metal foreign objects automatically fall on the material guiding member, thereby realizing the comprehensive and automatic cleaning of the metal foreign objects after magnetic adsorption. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the present invention.

[0019] Figure 2 It is a schematic structural connection diagram of the first bracket and the metal detector in the present invention.

[0020] Figure 3 It is a schematic structural diagram of the primary removal device in the present invention.

[0021] Figure 4 It is a schematic structural connection diagram of the primary removal device in the present invention.

[0022] Figure 5 It is a schematic structural diagram of the transmission member in the present invention.

[0023] Figure 6 It is a schematic structural connection diagram of the magnetic chuck and the cleaning disc in the present invention.

[0024] Figure 7 It is a schematic structural connection diagram of the material collecting frame and the material guiding member in the present invention.

[0025] Figure 8 It is a schematic structural diagram of the secondary removal device in the present invention.

[0026] Figure 9 It is a partial schematic structural connection diagram of the secondary removal device in the present invention.

[0027] Figure 10 It is a schematic structural connection diagram of the magnetic suction cylinder and the cleaning cylinder in the present invention.

[0028] In the figure: 1. First coal conveyor belt; 2. Second coal conveyor belt; 3. First support; 31. Metal detector; 4. Primary removal device; 5. Secondary removal device; 41. Installation top frame; 411. First mounting seat; 412. Second mounting seat; 42. Magnetic chuck; 421. Auxiliary roller; 43. Cleaning plate; 431. Partition plate; 44. Aggregating frame; 45. Material guiding member; 46. Scraper; 47. Transmission member; 471. Transmission side frame; 472. Transmission roller; 473. Side top roller; 474. Transmission belt; 475. First motor; 451. Material guiding roller; 452. Material guiding side frame; 453. Material guiding belt; 454. Second motor; 51. Second support; 52. Rotating tube; 521. Inner support; 522. Driving gear ring; 523. Driving gear; 524. Third motor; 53. Adsorption cylinder; 531. Side ring frame; 532. Partition board; 54. Magnetic adsorption cylinder; 541. Installation cross frame; 542. Cleaning cylinder; 543. L-shaped support; 55. Object guiding inclined frame. Detailed implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment: As Figures 1-10As shown in the figure, the present invention provides a metal foreign object detection device based on a coal conveyor belt, including a first coal conveyor belt 1. Below one end of the first coal conveyor belt 1, there is a second coal conveyor belt 2. The first coal conveyor belt 1 and the second coal conveyor belt 2 are inclined. The first coal conveyor belt 1 can stably convey coal, and the second coal conveyor belt 2 can stably convey coal. At one end of the first coal conveyor belt 1 close to the second coal conveyor belt 2, there is a first support 3. At the top of the first support 3, a metal detector 31 is fixedly installed. The metal detector 31 is located above the first coal conveyor belt 1. When the coal doped with metal foreign objects on the first coal conveyor belt 1 is conveyed to the position of the metal detector 31, the metal detector 31 detects that the coal is doped with metal foreign objects, and then controls the first coal conveyor belt 1 to slowly convey the coal. On one side of the first support 3 close to the second coal conveyor belt 2, there is a primary removal device 4. The primary removal device 4 is located above the first coal conveyor belt 1. By setting the primary removal device 4, the metal foreign objects doped in the coal are magnetically attracted for the first time, so as to automatically clean the metal foreign objects doped in the coal. On one side of the first coal conveyor belt 1 close to the second coal conveyor belt 2, there is a secondary removal device 5. By setting the secondary removal device 5, the metal foreign objects doped in the coal are magnetically attracted for the second time, so as to further automatically clean the metal foreign objects doped in the coal and prevent the metal foreign objects from entering the next device and causing damage.

[0031] The primary removal device 4 includes an installation top frame 41. At the bottom end of the installation top frame 41, there is a magnetic chuck 42. On the outer side of the magnetic chuck 42, a first mounting seat 411 is fixedly installed. The first mounting seat 411 is fixedly installed at the bottom end of the installation top frame 41. By setting the first mounting seat 411, the magnetic chuck 42 is fixed. On one side of the magnetic chuck 42 close to the first support 3, there is a cleaning plate 43. Between the cleaning plate 43 and the magnetic chuck 42, a partition plate 431 is fixedly installed. By setting the partition plate 431 between the cleaning plate 43 and the magnetic chuck 42, the cleaning plate 43 and the magnetic chuck 42 are isolated, so that the cleaning plate 43 will not be magnetic. On the outer side of the cleaning plate 43, there is a material collecting frame 44. The material collecting frame 44 is inclined. The material collecting frame 44 is located on the outer side of the cleaning plate 43. The material collecting frame 44 is fixedly installed at the bottom end of the installation top frame 41 for the installation and fixation of the material collecting frame 44. On the outer side of the cleaning plate 43, a second mounting seat 412 is fixedly installed. The second mounting seat 412 is fixedly installed in the material collecting frame 44. By setting the second mounting seat 412, the cleaning plate 43 is installed and fixed. On one side of the bottom end of the material collecting frame 44 close to the first support 3, there is a guiding member 45. The guiding member 45 is inclined. At the bottom of the inner wall of the material collecting frame 44 close to the first support 3, a scraping plate 46 is fixedly installed. On the outer sides of the magnetic chuck 42 and the cleaning plate 43, there is a transmission member 47. The transmission member 47 is inclined. By setting the transmission member 47, the metal foreign objects isolated and magnetically attracted below the magnetic chuck 42 are transmitted.

[0032] The transmission member 47 includes two symmetrically distributed transmission side frames 471. The transmission side frames 471 are fixedly installed at the bottom end of the installation top frame 41 to fix the transmission member 47. Two vertically distributed transmission rollers 472 are rotatably installed at both ends of the transmission side frame 471. A side top roller 473 is provided between the two transmission rollers 472 on the same side. The side top roller 473 is rotatably installed on the transmission side frame 471. A transmission belt 474 is movably sleeved outside the plurality of transmission rollers 472 and the side top roller 473. A plurality of auxiliary rollers 421 evenly distributed are movably clamped at the bottom of the magnetic suction cup 42. The outer surface of the auxiliary roller 421 is in contact with the inner wall of the transmission belt 474. By providing a plurality of auxiliary rollers 421 at the bottom of the magnetic suction cup 42, the transmission belt 474 on the lower surface of the magnetic suction cup 42 is assisted and supported, facilitating the stable transmission of the transmission belt 474 on the lower surface of the magnetic suction cup 42; the magnetic suction cup 42 and the cleaning disc 43 are located in the transmission belt 474. The inner wall of the transmission belt 474 is in contact with the lower surfaces of the magnetic suction cup 42 and the cleaning disc 43. After the metal foreign objects doped in the coal conveyed on the first coal conveyor belt 1 are slowly conveyed below the magnetic suction cup 42, under the high-strength magnetic suction action of the magnetic suction cup 42, the metal foreign objects doped in the coal are magnetically attracted to the lower surface of the transmission belt 474 below the magnetic suction cup 42; First motors 475 are fixedly installed at both ends of the transmission side frame 471. The driving ends of the first motors 475 are fixedly installed with the shaft ends of the corresponding side top rollers 473 respectively; By controlling the first motor 475 to start and drive the corresponding side top roller 473 to rotate, the transmission belt 474 is driven to transmit stably. With the continuous magnetic suction action of the magnetic suction cup 42, the metal foreign objects magnetically separated and attracted on the lower surface of the transmission belt 474 are stably transmitted below the cleaning disc 43. Since the cleaning disc 43 has no magnetic suction effect, the metal foreign objects fall on the guiding member 45 in the material collecting frame 44 under the action of their own gravity, thereby automatically processing the metal foreign objects after magnetic suction; One end of the scraper 46 away from the inner wall of the material collecting frame 44 is in contact with the outer wall of the transmission belt 474. By providing the scraper 46, one end of the scraper 46 away from the inner wall of the material collecting frame 44 is in contact with the outer wall of the transmission belt 474. Under the continuous transmission of the transmission belt 474, the scraper 46 scrapes and cleans the metal foreign objects remaining on the surface of the transmission belt 474, so that the metal foreign objects remaining on the surface of the transmission belt 474 are scraped off and automatically fall on the guiding member 45, thereby realizing the comprehensive automatic cleaning of the metal foreign objects after magnetic suction.

[0033] The guiding member 45 includes two symmetrically distributed guiding rollers 451 and two symmetrically distributed guiding side frames 452. The guiding side frames 452 are fixedly installed at the bottom of the side end of the material collecting frame 44. One of the guiding rollers 451 is rotatably installed at the bottom of the end of the material collecting frame 44 away from the guiding side frame 452, and the other guiding roller 451 is rotatably installed at the end of the guiding side frame 452 away from the material collecting frame 44. A guiding belt 453 is movably sleeved outside the two guiding rollers 451. The metal foreign objects fall on the guiding belt 453 in the guiding member 45. One side of one of the material guiding side frames 452 away from the material collecting frame 44 is fixedly installed with a second motor 454. The driving end of the second motor 454 is fixedly installed with the shaft end of one of the material guiding rollers 451. By controlling the second motor 454 to start, one of the material guiding rollers 451 is driven to rotate, so as to control the stable transmission of the material guiding belt 453, thereby transmitting the metal foreign objects on the material guiding belt 453 in the material guiding member 45 and discharging the cleaned metal foreign objects.

[0034] The secondary removal device 5 includes two second brackets 51 symmetrically distributed. The tops of the second brackets 51 are both rotatably installed with rotating tubes 52. The opposite ends of the rotating tubes 52 are both fixedly installed with inner brackets 521. The outer sides of the two groups of inner brackets 521 are fixedly installed with adsorption cylinders 53. Both ends of the outer side of the adsorption cylinder 53 are fixedly installed with side ring frames 531. By setting the side ring frames 531, the two ends of the outer side of the adsorption cylinder 53 are limited. A plurality of partition plates 532 distributed in an annular array are fixedly installed on the outer side of the adsorption cylinder 53. Both ends of the partition plates 532 are respectively fixedly installed with the inner sides of the corresponding side ring frames 531. A magnetic adsorption cylinder 54 is arranged in the adsorption cylinder 53. A cleaning cylinder 542 is fixedly clamped at the bottom of the magnetic adsorption cylinder 54 close to the first coal conveyor belt 1. A mounting cross frame 541 is fixedly installed on the side end of the magnetic adsorption cylinder 54. One end of the mounting cross frame 541 away from the magnetic adsorption cylinder 54 passes through the corresponding rotating tube 52 and is fixedly installed with an L-shaped bracket 543. The L-shaped bracket 543 is fixedly installed on the top of the corresponding second bracket 51. By setting the L-shaped bracket 543, the mounting cross frame 541 is installed and fixed, so as to fix the position of the magnetic adsorption cylinder 54 in the adsorption cylinder 53, without affecting the rotation of the adsorption cylinder 53 outside the magnetic adsorption cylinder 54. A material guiding inclined frame 55 is fixedly installed on one side of the middle part of the second bracket 51 close to the first coal conveyor belt 1. After the metal foreign objects doped in the coal conveyed on the first coal conveyor belt 1 are subjected to primary automatic treatment, they continue to be conveyed to the position of the second coal conveyor belt 2. The coal is conveyed and falls between one group of partition plates 532 on the outer side of the adsorption cylinder 53. At the same time, the magnetic adsorption cylinder 54 is started. With the magnetic adsorption effect of the magnetic adsorption cylinder 54, the remaining metal foreign objects in the coal are secondarily isolated and adsorbed on the surface of the adsorption cylinder 53 for secondary treatment of the metal foreign objects in the coal. With the rotation of the adsorption cylinder 53, the coal in one group of partition plates 532 is sequentially conveyed to the second coal conveyor belt 2 for continuous transmission. When the metal foreign objects isolated and adsorbed on the surface of the adsorption cylinder 53 rotate to the position of the cleaning cylinder 542, since the cleaning cylinder 542 does not have a magnetic adsorption effect, the metal foreign objects isolated and adsorbed on the surface of the adsorption cylinder 53 automatically fall. Through the action of the partition plates 532, the metal foreign objects automatically fall on the material guiding inclined frame 55 and are discharged for the discharge of the secondarily treated metal foreign objects.

[0035] One end of the rotating tube 52 away from the inner support 521 is fixedly installed with a transmission gear ring 522. The bottom of the transmission gear ring 522 is meshed and connected with a driving gear 523. The shaft end of the driving gear 523 is rotatably installed on the corresponding second support 51. One side of the second support 51 close to the driving gear 523 is fixedly installed with a third motor 524. The driving end of the third motor 524 and the shaft end of the driving gear 523 are fixedly installed. By controlling the third motor 524 to start and drive the driving gear 523 to rotate, the transmission gear ring 522 is controlled to rotate, and then the rotating tube 52 and the inner support 521 are controlled to drive the adsorption cylinder 53 to rotate stably.

[0036] Working principle: During use, the first coal conveyor belt 1 stably conveys coal. When the coal conveyed on the first coal conveyor belt 1 is doped with metal foreign objects and is conveyed to the position of the metal detector 31, the metal detector 31 detects that the coal is doped with metal foreign objects, and then controls the first coal conveyor belt 1 to convey the coal slowly. After the metal foreign objects doped in the coal conveyed on the first coal conveyor belt 1 are slowly conveyed to the lower part of the magnetic chuck 42, under the strong magnetic adsorption of the magnetic chuck 42, the metal foreign objects doped in the coal are magnetically adsorbed on the lower surface of the conveyor belt 474 below the magnetic chuck 42. At the same time, control the first motor 475 to start and drive the corresponding side top roller 473 to rotate, so as to drive the conveyor belt 474 to convey stably. With the continuous magnetic adsorption of the magnetic chuck 42, the metal foreign objects magnetically isolated on the lower surface of the conveyor belt 474 are stably conveyed to the lower part of the cleaning plate 43. Since the cleaning plate 43 has no magnetic adsorption effect, the metal foreign objects fall on the guide member 45 in the material collecting frame 44 under the action of their own gravity, so as to automatically process the metal foreign objects after magnetic adsorption. Under the continuous conveyance of the conveyor belt 474, the scraper 46 scrapes the metal foreign objects remaining on the surface of the conveyor belt 474, so that the metal foreign objects remaining on the surface of the conveyor belt 474 are scraped off, and the remaining metal foreign objects automatically fall on the guide member 45, so as to realize the full-automatic cleaning of the metal foreign objects after magnetic adsorption. The metal foreign objects automatically fall on the guide belt 453 in the guide member 45. By controlling the second motor 454 to drive one of the guide rollers 451 to rotate, the guide belt 453 is controlled to convey stably, so as to convey the metal foreign objects falling on the guide belt 453 in the guide member 45 and discharge the cleaned metal foreign objects. After the metal foreign objects doped in the coal conveyed on the first coal conveyor belt 1 are subjected to primary automatic treatment, they continue to be conveyed to the position of the second coal conveyor belt 2. The coal is conveyed and falls between one group of partitions 532 on the outer side of the adsorption cylinder 53. At the same time, the magnetic adsorption cylinder 54 is started. With the magnetic adsorption of the magnetic adsorption cylinder 54, the remaining metal foreign objects in the coal are secondarily isolated and adsorbed on the surface of the adsorption cylinder 53 for secondary treatment of the metal foreign objects in the coal. At the same time, the third motor 524 is controlled to start to drive the driving gear 523 to rotate, thereby controlling the transmission gear ring 522 to rotate, and then controlling the rotating tube 52 and the inner bracket 521 to drive the adsorption cylinder 53 to rotate stably, and cooperate with the rotation of the adsorption cylinder 53, and sequentially transfer the coal in one group of partitions 532 to the second coal conveyor belt 2 for continued transmission. When the metal foreign matter isolated and adsorbed on the surface of the adsorption cylinder 53 rotates to the position of the cleaning cylinder 542, since the cleaning cylinder 542 does not have a magnetic effect, the metal foreign matter isolated and adsorbed on the surface of the adsorption cylinder 53 automatically falls down, and through the action of the partition 532, the metal foreign matter automatically falls on the guide inclined frame 55 and is discharged, and the discharge of the metal foreign matter is processed for secondary treatment.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal foreign body detection device based on a coal conveyor belt, comprising a first coal conveyor belt (1), characterized in that: A second coal conveyor belt (2) is provided below one end of the first coal conveyor belt (1); the first coal conveyor belt (1) and the second coal conveyor belt (2) are arranged obliquely; a first bracket (3) is provided at one end of the first coal conveyor belt (1) close to the second coal conveyor belt (2); a metal detector (31) is fixedly mounted on the top of the first bracket (3); the metal detector (31) is located above the first coal conveyor belt (1); a primary removal device (4) is provided on a side of the first bracket (3) close to the second coal conveyor belt (2); the primary removal device (4) is located above the first coal conveyor belt (1); and a secondary removal device (5) is provided on a side of the first coal conveyor belt (1) close to the second coal conveyor belt (2).

2. The metal foreign body detection device based on the coal conveyor belt according to claim 1 is characterized in that: The primary removal device (4) comprises a mounting frame (41), a magnetic suction cup (42) being provided at the bottom end of the mounting frame (41), a first mounting seat (411) being fixedly mounted on the outer side of the magnetic suction cup (42), the first mounting seat (411) being fixedly mounted on the bottom end of the mounting frame (41), a cleaning disc (43) being provided on a side of the magnetic suction cup (42) close to the first bracket (3), an isolation plate (431) being fixedly mounted between the cleaning disc (43) and the magnetic suction cup (42), a material gathering frame (44) being provided on the outer side of the cleaning disc (43), the material gathering frame (44) being fixedly mounted on the mounting frame. (41), a second mounting seat (412) is fixedly mounted on the outer side of the cleaning disk (43), the second mounting seat (412) is fixedly mounted in a material gathering frame (44), the material gathering frame (44) is tilted, a material guide member (45) is provided on the side of the bottom end of the material gathering frame (44) close to the first bracket (3), the material guide member (45) is tilted, a scraper (46) is fixedly mounted on the bottom of the inner wall of the material gathering frame (44) close to the first bracket (3), and a transmission member (47) is provided on the outer side of the magnetic suction cup (42) and the cleaning disk (43), the transmission member (47) is tilted.

3. The metal foreign body detection device based on coal conveyor belt according to claim 2 is characterized in that: The transmission member (47) comprises two symmetrically distributed transmission side frames (471), the transmission side frames (471) being fixedly mounted on the bottom end of the mounting top frame (41), two transmission rollers (472) being rotatably mounted on both ends of the transmission side frames (471) and being distributed up and down, a side top roller (473) being provided between the two transmission rollers (472) on the same side, the side top roller (473) being rotatably mounted on the transmission side frames (471), a plurality of transmission rollers (472) and side top rollers (473) being provided with transmission belts (474) on the outer movable sleeves thereof, a plurality of evenly distributed auxiliary rollers (421) being provided on the bottom movable card of the magnetic suction cup (42), the outer surface of the auxiliary roller (421) being in contact with the inner wall of the transmission belt (474).

4. The metal foreign body detection device based on the coal conveyor belt according to claim 3 is characterized in that: The magnetic suction cup (42) and the cleaning cup (43) are located in the conveyor belt (474), and the inner wall of the conveyor belt (474) is in contact with the lower surfaces of the magnetic suction cup (42) and the cleaning cup (43).

5. The metal foreign body detection device based on coal conveyor belt according to claim 3 is characterized in that: One end of the scraper (46) away from the inner wall of the material gathering frame (44) contacts the outer wall of the conveyor belt (474).

6. The metal foreign body detection device based on coal conveyor belt according to claim 3 is characterized in that: First motors (475) are fixedly mounted on both ends of the transmission side frame (471), and the driving ends of the first motors (475) are respectively fixedly mounted on the shaft ends of the corresponding side top rollers (473).

7. The metal foreign body detection device based on coal conveyor belt according to claim 2 is characterized in that: The material guide member (45) comprises two symmetrically distributed material guide rollers (451) and two symmetrically distributed material guide side frames (452), wherein the material guide side frames (452) are fixedly mounted on the bottom of the side ends of the material gathering frame (44), wherein one of the material guide rollers (451) is rotatably mounted on the bottom of one end of the material gathering frame (44) away from the material guide side frame (452), and the other material guide roller (451) is rotatably mounted on one end of the material guide side frame (452) away from the material gathering frame (44), and a material guide belt (453) is movablely sleeved on the outer sides of the two material guide rollers (451).

8. The metal foreign body detection device based on coal conveyor belt according to claim 7 is characterized in that: A second motor (454) is fixedly mounted on one side of one of the material guide side frames (452) away from the material gathering frame (44), and a driving end of the second motor (454) and an axial end of one of the material guide rollers (451) are fixedly mounted.

9. The metal foreign body detection device based on coal conveyor belt according to claim 1 is characterized in that: The secondary removal device (5) comprises two symmetrically distributed second brackets (51), a rotating tube (52) is rotatably mounted on the top of each of the second brackets (51), an inner bracket (521) is fixedly mounted on the opposite ends of each of the rotating tubes (52), an adsorption cylinder (53) is fixedly mounted on the outer sides of the two groups of inner brackets (521), a side ring frame (531) is fixedly mounted on both ends of the outer sides of the adsorption cylinder (53), a plurality of partitions (532) distributed in a ring array are fixedly mounted on the outer sides of the adsorption cylinder (53), and both ends of the partitions (532) are respectively fixedly mounted on the inner sides of the corresponding side ring frames (531). The adsorption cylinder (53) is provided with a magnetic suction cylinder (54), and a cleaning cylinder (542) is fixedly clamped on the bottom of a side of the magnetic suction cylinder (54) close to the first coal conveyor belt (1). A mounting cross frame (541) is fixedly installed on the side end of the magnetic suction cylinder (54), and an end of the mounting cross frame (541) away from the magnetic suction cylinder (54) passes through a corresponding rotating tube (52) and is fixedly installed with an L-shaped bracket (543), and the L-shaped bracket (543) is fixedly installed on the top of the corresponding second bracket (51), and a guide inclined frame (55) is fixedly installed on a side of the middle part of the second bracket (51) close to the first coal conveyor belt (1).

10. The metal foreign body detection device based on coal conveyor belt according to claim 9, characterized in that: A transmission gear ring (522) is fixedly mounted on one end of the rotating tube (52) away from the inner bracket (521); a driving gear (523) is meshingly connected to the bottom of the transmission gear ring (522); an axial end of the driving gear (523) is rotatably mounted on a corresponding second bracket (51); a third motor (524) is fixedly mounted on a side of the second bracket (51) close to the driving gear (523); a driving end of the third motor (524) and an axial end of the driving gear (523) are fixedly mounted.

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