Ore crusher feeding system with iron recognizing and picking function

Abstract

The invention belongs to the technical field of iron identification and picking, and particularly discloses an ore crusher feeding system with an iron identification and picking function, which comprises a support frame and a control cabinet, the support frame is provided with a stock bin and an iron belt picking machine, the stock bin is provided with a feeding device, the iron belt picking machine is provided with a guide hopper, and the guide hopper is provided with a chute I and a chute II; the first chute and the second chute are provided with stepping motors, the control cabinet is provided with a Jetson series embedded image processing system, the iron belt picking machine is provided with an image shooting head, the image shooting head is connected with the Jetson series embedded image processing system, the Jetson series embedded image processing system is provided with a PLC, the stepping motors are connected with the PLC, and the stepping motors are provided with material distributing plates. The problem that in an existing iron ore fine crushing procedure, iron foreign matter is prone to being clamped in a crusher, and the crusher is damaged is solved. According to the invention, through the image shooting head and the Jetson series embedded image processing system, image recognition can be carried out on ores, iron foreign matters are effectively removed, and the service life of the crusher is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of iron identification and picking, and in particular to an ore crusher feeding system with the function of iron identification and picking. Background Art

[0002] During ore mining and subsequent processing, iron foreign bodies are very common and come in various forms. The reason for this is due to the complexity of the mining environment on the one hand, and the operation of mechanical equipment in each link and the characteristics of the ore itself on the other. During the shoveling process, the wear and tear of mechanical equipment and the detached parts will also cause iron foreign bodies to mix with the ore, such as the shovel teeth of the excavator and the drill bit of the drill rig falling into the ore due to long-term friction. In addition, some small tools are lost and mixed with the ore during the mining process.

[0003] The existing iron removal system mainly relies on electromagnets and metal sensors to achieve the iron removal function. The working principle is as follows: when the electromagnet is energized, it generates a magnetic field, which magnetizes and adsorbs the ferromagnetic material. When the metal approaches, the oscillation circuit changes are detected and converted into an electrical signal to trigger the control system, which then cooperates with the electromagnet or other iron removal devices to remove iron impurities.

[0004] In the iron ore crushing process, since the strong magnetic minerals themselves have strong magnetism, they will interfere with the normal work of iron foreign matter removal, making it impossible to accurately adsorb the iron foreign matter mixed in the ore, resulting in misjudgment or missed judgment. When iron foreign matter larger than the crusher discharge port enters the crusher, it is easy to be stuck in the crushing chamber and cannot be discharged by itself, thus damaging the crusher. Summary of the invention

[0005] The purpose of the present invention is to provide an ore crusher feeding system with the function of identifying and picking up iron, so as to solve the problem that in the iron ore fine crushing process, due to the strong magnetism of the ferromagnetic mineral itself, misjudgment or missed judgment is easy to occur, resulting in iron foreign matter being stuck in the crusher and unable to be discharged by itself, thus damaging the crusher.

[0006] To achieve the above-mentioned purpose, the basic scheme provided by the present invention is: an ore crusher feeding system with an iron picking identification function, comprising a support frame, a control cabinet and a collecting trough, the support frame is respectively provided with a silo, a receiving belt conveyor, an iron picking belt conveyor and a return belt conveyor, the outlet end of the silo is provided with a feeding device, a screening unit for screening ore is provided between the outlet end of the feeding device and the conveyor belt of the receiving belt conveyor, the unloading end of the receiving belt conveyor is located directly above the receiving end of the iron picking belt conveyor, baffles are provided on both sides of the receiving end of the iron picking belt conveyor, the unloading end of the iron picking belt conveyor is provided with a guide hopper, and the bottom of the guide hopper is respectively connected to chute one and chute two A stepper motor is provided at the feeding place of the chute one and the chute two, and a Jetson series embedded image processing system is electrically connected in the control cabinet. An image capture head is provided on the iron picking belt conveyor, and the output end of the image capture head is electrically connected to the Jetson series embedded image processing system, and the output end of the Jetson series embedded image processing system is electrically connected to a PLC controller, and the stepper motor is electrically connected to the PLC controller. A dividing plate for selecting and covering the chute one and the chute two is provided on the stepper motor, and the unloading end of the chute one is located directly above the conveyor belt of the return belt conveyor, and the unloading end of the chute two is located directly above the collecting tank.

[0007] The working principle of the present invention is that after the secondary crushing of the ore is completed, the ore after the secondary crushing is first sent to the silo, and then the ore is sent to the screening unit through the feeding device. The screening unit screens the ore to separate the ores of different particle sizes. After screening, the ore with smaller particles enters the subsequent process, and the ore with larger particles falls just above the conveyor belt of the receiving belt conveyor. The receiving belt conveyor transports the ore to the iron picking belt conveyor, and the ore dropped from the unloading end of the receiving belt conveyor falls on the iron picking belt conveyor. At the same time, in the process of the ore falling from the receiving belt conveyor to the iron picking belt conveyor, the image capture head on the iron picking belt conveyor takes pictures of the dropped and scattered ore, and transmits the image information to the control cabinet. The Jetson series embedded image processing system is used to compare and analyze the iron foreign body model entered into the system. When the similarity is greater than 80%, the electrical signal is transmitted to the PLC controller. After receiving the signal, the PLC controller controls the stepper motor to reverse, thereby causing the dividing plate to deflect toward the second chute until the dividing plate covers the top port of the second chute and stops rotating. The iron foreign bodies on the iron picking belt conveyor fall into the collecting tank together with the ore through the second chute. Then the PLC controller controls the stepper motor to rotate forward, thereby causing the dividing plate to deflect toward the second chute until the dividing plate covers the top port of the second chute and stops rotating. The above steps can complete the process of identifying and picking iron.

[0008] The beneficial effects of the present invention are as follows: through the image capture head and the Jetson series embedded image processing system, the ore can be image recognized. Compared with the traditional electromagnet and metal sensor, this method is not interfered by the strong magnetic minerals, avoids the situation of misjudgment or missed judgment, improves the accuracy of iron removal, effectively removes iron foreign matter, and prevents iron foreign matter larger than the crusher discharge port from entering the crusher, thereby preventing the crusher from being stuck in the crushing chamber and unable to be discharged by itself and being damaged, thereby extending the service life of the crusher, reducing the equipment maintenance cost, and reducing the production interruption caused by the damage of the crusher, improving the continuity and stability of the crushing production of the ore dressing plant, and ensuring the production efficiency.

[0009] Option 2, which is the preferred option of the basic option, the output end of the PLC controller is electrically connected to a timer, and the output ends of the timer are electrically connected to delay relay 1 and delay relay 2 respectively, the normally open contact of delay relay 1 is electrically connected to the forward control signal input end of the stepper motor driver, and the normally open contact of delay relay 2 is electrically connected to the reverse control signal input end of the stepper motor driver; by controlling the stepper motor through delay relay 1 and delay relay 2, it is possible to avoid the forward rotation time of the dividing plate being too long, which may cause too much ore to enter the collecting trough.

[0010] Option three, which is the preferred option of the basic option, the screening unit includes a casing, an upper screen and a lower screen are respectively arranged in the casing, the upper screen is located directly above the lower screen, the bottom of the casing is connected with a finished product chute, a finished product belt conveyor is arranged at the bottom of the support frame, the finished product belt conveyor is located directly below the silo, the unloading end of the finished product chute is located directly above the conveyor belt of the finished product belt conveyor, the discharge port of the lower screen is connected with a return chute, the unloading end of the return chute is located directly above the conveyor belt of the return belt conveyor, the unloading end of the upper screen is provided with a receiving trough, the unloading end of the receiving trough is located directly above the conveyor belt of the receiving belt conveyor; the ore that meets the particle size requirements of the finished product is directly transported to the finished product belt conveyor through the finished product chute, thereby realizing the rapid collection and transportation of the finished product ore, reducing the complexity of material transfer in the intermediate links, and improving the continuity of the production process.

[0011] Option 4 is the preferred option of the basic option. The bottom of the collecting tank is connected to chute three. A gate valve is provided at the connection between chute three and the collecting tank. The unloading end of chute three is located directly above the conveyor belt of the return belt conveyor. The bottom of the collecting tank is connected to chute three and a gate valve is provided. After the iron foreign matter in the collecting tank is processed, the ore can be discharged through chute three to the return belt conveyor by controlling the opening of the gate valve.

[0012] Option five is the preferred option of the basic option. A bracket one is provided on the iron picking belt conveyor, and a buffer plate is provided on the bracket one. The buffer plate is located directly above the material receiving end of the iron picking belt conveyor. When the ore falls from the material receiving belt conveyor to the iron picking belt conveyor, the buffer plate can play a buffering role, slowing down the falling speed and impact force of the ore, reducing the wear and damage of the ore to the conveyor belt of the iron picking belt conveyor, and extending the service life of the conveyor belt. At the same time, it helps to maintain the smooth transportation of the ore on the iron picking belt conveyor, avoid splashing, scattering, etc. caused by excessive impact of the ore, and improve the stability of ore transportation.

[0013] Option six, which is the preferred option of the basic option, is that the iron picking belt conveyor is provided with a bracket two, and the bracket two is detachably connected with a scraper; the scraper can thin and flatten the ore material during the operation of the iron picking belt conveyor to prevent material piling.

[0014] Option seven is a preferred embodiment of option six. A threaded hole is provided on the bracket two, a screw is threadedly connected to the threaded hole, the bottom end of the screw is connected to the scraper, a nut is threadedly connected to the screw, and the bottom of the nut is against the top of the bracket two; the height of the scraper can be adjusted by the screw and the nut, thereby improving flexibility.

[0015] Option eight is the preferred option of the basic option. The conveyor belts of the iron picking belt conveyor, material receiving belt conveyor, finished product belt conveyor and return material belt conveyor are all bucket-shaped; the conveyor belts of the iron belt conveyor, material receiving belt conveyor, finished product belt conveyor and return material belt conveyor are all bucket-shaped, which can prevent the ore from slipping from both sides of the conveyor belt during transportation and reduce material loss.

[0016] Option nine, which is the preferred option of the basic option, the feeding device is a vibrating feeder; the feeding device adopts a vibrating feeder, which can evenly and continuously transport the ore in the silo to the screening unit, avoiding the accumulation and blockage of the ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of a feeding system of an ore crusher with the function of identifying and picking up iron according to the present invention;

[0018] Figure 2 It is a partial cross-sectional view of a feeding system of an ore crusher with an iron identification and picking function according to the present invention;

[0019] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0020] Figure 4 It is a stereoscopic diagram of an iron picking belt conveyor and a material receiving belt conveyor in a feeding system of an ore crusher having an iron picking identification function according to the present invention;

[0021] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0022] Figure 6 The invention discloses a circuit diagram of a PLC controller and a stepping motor in a feeding system of an ore crusher with an iron identification and picking function. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below through specific embodiments:

[0024] The reference numerals in the drawings of the specification include: 1. support frame, 101. silo, 102. feeding device, 2. control cabinet, 201. image capture head, 3. material receiving belt conveyor, 4. iron picking belt conveyor, 401. baffle, 402. guide hopper, 403. chute one, 404. chute two, 405. stepper motor, 406. material dividing plate, 407. bracket one, 408. buffer plate, 409. bracket two, 410. scraper, 411. screw, 412. nut, 5. return material belt conveyor, 6. collecting trough, 601. chute three, 602. gate valve, 701. casing, 702. upper screen, 703. lower screen, 704. finished product chute, 705. return material chute, 706. material receiving chute, 8. finished product belt conveyor.

[0025] like Figures 1 to 6As shown: a feeding system of an ore crusher with an iron-recognition and picking function, comprising a support frame 1, a control cabinet 2 and a collecting tank 6, a silo 101, a material receiving belt conveyor 3, an iron-receiving belt conveyor 4 and a return belt conveyor 5 are fixedly connected to the support frame 1, and a feeding device 102 is detachably connected to the outlet end of the silo 101, and the feeding device 102 is a vibrating feeder. A screening unit for screening ore is arranged between the outlet end of the feeding device 102 and the conveyor belt of the material receiving belt conveyor 3, and the screening unit comprises a casing 701, and an upper screen 702 and a lower screen 703 are arranged in the casing 701, respectively. The discharge end of the feeding device 102 is located directly above the upper screen 703, the upper screen 703 is located directly above the lower screen 702, the bottom of the casing 701 is connected to a finished product chute 704, the bottom of the support frame 1 is provided with a finished product belt conveyor 8, the finished product belt conveyor 8 is located directly below the silo 101, the discharge end of the finished product chute 704 is located directly above the conveyor belt of the finished product belt conveyor 8, the discharge port of the lower screen 703 is connected to a return chute 705, the discharge end of the return chute 705 is located directly above the conveyor belt of the return belt conveyor 5, and the discharge end of the upper screen 702 is bolted to a receiving trough 706, the unloading end of the receiving trough 706 is located just above the conveyor belt of the receiving belt machine 3, the unloading end of the receiving belt machine 3 is located just above the receiving end of the iron picking belt machine 4, baffles 401 are fixedly connected on both sides of the receiving end of the iron picking belt machine 4, a bracket 1 407 is fixedly connected to the iron picking belt machine 4, a buffer plate 408 is fixedly connected to the bracket 1 407, the buffer plate 408 is located just above the receiving end of the iron picking belt machine 4, a buffer pad of soft material is detachably connected to the buffer plate 408, a bracket 2 409 is fixedly connected to the iron picking belt machine 4, and a threaded hole is provided on the bracket 2 409, A screw 411 is threadedly connected to the threaded hole, a scraper 410 is fixedly connected to the bottom end of the screw 411, a nut 412 is threadedly connected to the screw 411, the bottom of the nut 412 is against the top of the bracket 2 409, the unloading end of the iron picking belt conveyor 4 is fixedly connected to the guide hopper 402, the bottom of the guide hopper 402 is respectively connected to the chute 1 403 and the chute 2 404, a stepper motor 405 is provided at the feeding place of the chute 1 403 and the chute 2 404, the model of the stepper motor 405 is ATK-S42H40D20, and the frequency of iron foreign matter appearing in the ore is less than 5 times within one month.

[0026] The control cabinet 2 is electrically connected to a Jetson series embedded image processing system, and the iron picking belt conveyor 4 is detachably connected to an image capture head 201, the output end of the image capture head 201 is electrically connected to the Jetson series embedded image processing system, the output end of the Jetson series embedded image processing system is electrically connected to a PLC controller, the output end of the PLC controller is electrically connected to a timer, the output ends of the timer are electrically connected to a delay relay 1 and a delay relay 2 respectively, the normally open contact of the delay relay 1 is electrically connected to the forward control signal input end of the stepper motor 405 driver, the delay time of the delay relay 1 of 13s originates from: the length of the iron foreign matter and the ore from the unloading end of the receiving belt conveyor 3 to the unloading end of the iron picking belt conveyor 4 is 10m, the rotation speed of the iron picking belt conveyor 4 is 0.6m / s, then the time for the iron foreign matter from the unloading end of the receiving belt conveyor 3 to the unloading end of the iron picking belt conveyor 4 is the length 10m divided by the rotation speed 0.6m / s, the delay time is equal to 16s, the normally open contact of the delay relay 2 is electrically connected to the reverse control signal input terminal of the stepper motor 405 driver, and the delay time of the delay relay 2 is 3s. The stepper motor 405 is provided with a dividing plate 406 for selecting and closing the chute 1 403 and the chute 2 404. The unloading end of the chute 1 403 is located directly above the conveyor belt of the return belt conveyor 5, and the unloading end of the chute 2 404 is located directly above the collecting tank 6. The stepper motor 405 belt When the movable dividing plate 406 deflects toward the direction of chute one 403, it is reverse rotation. When the stepper motor 405 drives the dividing plate 406 to deflect toward the direction of chute two 404, it is forward rotation. The bottom of the collecting tank 6 is connected with the chute three 601. A gate valve 602 is provided at the connection between the chute three 601 and the collecting tank 6. The unloading end of the chute three 601 is located directly above the conveyor belt of the return belt conveyor 5. The conveyor belts of the iron picking belt conveyor 4, the material receiving belt conveyor 3, the finished product belt conveyor 8 and the return belt conveyor 5 are all bucket-shaped.

[0027] The implementation method of this embodiment is as follows: after the secondary crushing of the ore is completed, the ore after the secondary crushing is first sent into the silo 101, and then the feeding device 102 sends the ore out evenly through vibration, and the ore first falls on the upper screen 702, and the larger particles of ore and iron foreign matter are intercepted, and the larger particles of ore fall to the top of the conveyor belt of the receiving belt conveyor 3 through the receiving trough 706, and the smaller particles of ore pass through the upper screen 702 and fall to the lower screen 703, and the smaller particles of ore intercepted by the lower screen 703 fall to the top of the conveyor belt of the returning belt conveyor 5 through the returning chute 705 and are sent to the fine crushing process, and the smaller particles of ore that meet the size requirements The ore passes through the lower screen 703 and falls from the finished product chute 704 connected to the bottom of the casing 701 to the top of the conveyor belt 8 of the finished product, and the qualified finished ore is transported to the ball mill for grinding; the receiving belt conveyor 3 transports the larger particle ore from the upper screen 702 to the iron picking belt conveyor 4, and the ore falling from the unloading end of the receiving belt conveyor 3 falls on the buffer plate 408. At the same time, in the process of the ore falling from the receiving belt conveyor 3 to the buffer plate 408, the image capture head 201 on the iron picking belt conveyor 4 takes pictures of the fallen and scattered ore, and transmits the image information to the Jetson series embedded image processing in the control cabinet 2. The system compares and analyzes the iron foreign body model entered in the system. When the similarity is greater than 80%, the electrical signal is transmitted to the PLC controller. After receiving the signal, the PLC controller first starts the delay relay 1 through the timer, and starts the delay of 16s. After the delay of 16s, the normally open contact of the delay relay 1 is closed, and the stepper motor 405 is controlled to reverse. The stepper motor 405 drives the dividing plate 406 to rotate and cover the top port of the chute 1 403 (the dividing plate 406 originally covers the top port of the chute 2 404). After the reversal is completed, the delay relay 2 starts to work and starts to delay for 3s. The 3s delay is for the ore and iron. At the unloading time of foreign objects, the iron foreign objects on the iron picking belt conveyor 4 fall into the collecting tank 6 together with the ore through the chute two 404. After the delay of 3s, the normally open contact of the delay relay two is closed, and the stepper motor 405 is controlled to rotate forward, so that the dividing plate 406 deflects toward the direction of the chute two 404 until the dividing plate 406 covers the top end of the chute two 404 and stops rotating. The above steps can complete the process of identifying and picking iron, and then manually clean the iron foreign objects in the collecting tank 6. After the processing is completed, open the gate valve 602, and the ore falls through the chute three 601 to the top of the conveyor belt of the return belt conveyor 5 and is transported to the fine crushing process.

[0028] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An ore crusher feeding system with iron identification and picking function, characterized in that: The invention comprises a support frame (1), a control cabinet (2) and a collecting trough (6); the support frame (1) is respectively provided with a silo (101), a material receiving belt conveyor (3), an iron picking belt conveyor (4) and a material returning belt conveyor (5); a feeding device (102) is provided at the outlet end of the silo (101); a screening unit for screening ore is provided between the outlet end of the feeding device (102) and the conveyor belt of the material receiving belt conveyor (3); a discharge end of the material receiving belt conveyor (3) is located directly above a discharge end of the iron picking belt conveyor (4); baffles (401) are provided on both sides of the discharge end of the iron picking belt conveyor (4); a material guide hopper (402) is provided at the discharge end of the iron picking belt conveyor (4); a chute 1 (403) and a chute 2 (404) are respectively connected at the bottom of the material guide hopper (402); and the chute 1 (403) and the chute 2 (404) are connected to each other. A stepper motor (405) is provided at the feeding place of the iron picking belt conveyor (404), a Jetson series embedded image processing system is electrically connected in the control cabinet (2), an image capture head (201) is provided on the iron picking belt conveyor (4), an output end of the image capture head (201) is electrically connected to the Jetson series embedded image processing system, an output end of the Jetson series embedded image processing system is electrically connected to a PLC controller, the stepper motor (405) is electrically connected to the PLC controller, a dividing plate (406) for selecting and closing chute one (403) and chute two (404) is provided on the stepper motor (405), a discharge end of the chute one (403) is located directly above the conveyor belt of the return belt conveyor (5), and a discharge end of the chute two (404) is located directly above the collecting tank (6).

2. The ore crusher feeding system with iron identification and picking function according to claim 1 is characterized in that: The output end of the PLC controller is electrically connected to a timer, and the output end of the timer is electrically connected to a delay relay 1 and a delay relay 2 respectively. The normally open contact of the delay relay 1 is electrically connected to the forward control signal input end of the stepper motor (405) driver, and the normally open contact of the delay relay 2 is electrically connected to the reverse control signal input end of the stepper motor (405) driver.

3. The ore crusher feeding system with iron identification and picking function according to claim 1 is characterized in that: The screening unit comprises a casing (701), wherein an upper screen (702) and a lower screen (703) are respectively arranged in the casing (701), wherein the upper screen (703) is located directly above the lower screen (702), wherein the bottom of the casing (701) is connected to a finished product chute (704), wherein a finished product belt conveyor (8) is arranged at the bottom of the support frame (1), wherein the finished product belt conveyor (8) is located directly below the silo (101), and wherein the upper screen (703) is located directly above the lower screen (702). The unloading end of the finished product chute (704) is located directly above the conveyor belt of the finished product belt conveyor (8); the discharge port of the lower screen (703) is connected to a return chute (705); the unloading end of the return chute (705) is located directly above the conveyor belt of the return belt conveyor (5); the unloading end of the upper screen (702) is provided with a receiving trough (706); the unloading end of the receiving trough (706) is located directly above the conveyor belt of the receiving belt conveyor (3).

4. The ore crusher feeding system with iron identification and picking function according to claim 1 is characterized in that: The bottom of the collecting tank (6) is connected to the chute three (601), and a gate valve (602) is provided at the connection between the chute three (601) and the collecting tank (6). The unloading end of the chute three (601) is located directly above the conveyor belt of the return belt conveyor (5).

5. The ore crusher feeding system with iron identification and picking function according to claim 1 is characterized in that: The iron picking belt conveyor (4) is provided with a bracket one (407), and the bracket one (407) is provided with a buffer plate (408), and the buffer plate (408) is located just above the material receiving end of the iron picking belt conveyor (4).

6. The ore crusher feeding system with iron identification and picking function according to claim 1, characterized in that: The iron picking belt conveyor (4) is provided with a second bracket (409), and a scraper (410) is detachably connected to the second bracket (409).

7. The ore crusher feeding system with iron identification and picking function according to claim 6, characterized in that: The second bracket (409) is provided with a threaded hole, a screw rod (411) is threadedly connected to the threaded hole, the bottom end of the screw rod (411) is connected to the scraper (410), a nut (412) is threadedly connected to the screw rod (411), and the bottom of the nut (412) is against the top of the second bracket (409).

8. The ore crusher feeding system with iron identification and picking function according to claim 1, characterized in that: The conveyor belts of the iron picking belt conveyor (4), the material receiving belt conveyor (3), the finished product belt conveyor (8) and the material returning belt conveyor (5) are all bucket-shaped.

9. The ore crusher feeding system with iron identification and picking function according to claim 1, characterized in that: The feeding device (102) is a vibrating feeder.

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