Electric vibration automatic ore drawing device and control method

Abstract

The invention relates to an electric vibration automatic ore drawing device which comprises a workshop fixing body, a pulse scanner, an ore drawing groove, a hydraulic cylinder, a gate, an electric vibration device, a bin hopper, a belt device, a water pool, an ore outlet groove, a flushing device and a gate position sensor. A bin hopper is installed under an ore drawing groove, the bin hopper is fixedly installed on a workshop fixing body through an expansion screw rod, and the bin hopper is used for containing ore. A hydraulic cylinder is mounted in the hopper, one end of the hydraulic cylinder is mounted on a side fixing plate of the hopper, and the other end of the hydraulic cylinder is used for mounting a gate and controlling opening and closing of the gate; a gate position sensor is installed at the fixed position of the hydraulic cylinder and used for monitoring the position of an ore drawing gate, the hydraulic gate is accurately controlled, and accurate ore drawing is achieved.

Description

Technical Field

[0001] The present invention relates to a pressing device, in particular to an electric vibration automatic ore discharging device, belonging to the technical fields of mine automation and mine machinery. Background Art

[0002] In the medium crushing process of a concentrator, due to objective reasons such as ore discharging equipment and site, the medium crushing circular vibrating screen and the medium crushing main shaft ore discharging still adopt manual remote ore discharging through monitoring videos. The operator in the central control room observes the monitoring video of the ore discharging port, observes the actual ore output, and manually gives the electric vibration setting value and opens / closes the hydraulic gate valve to adjust the ore discharging amount according to operation experience in the computer operation screen to meet the requirements of medium crushing ore discharging. The electric vibration setting value and the opening degree of the hydraulic gate valve are completely given by the operator's experience. This operation method not only increases a large amount of labor for the post workers, but also causes the phenomenon of ore overflowing outside the belt. It not only wastes electric energy, increases costs, causes equipment failures such as the up and down bumping vibration of the electric vibrator, the damage and oil leakage of the gate hydraulic cylinder, and the loosening of the electric vibrator anchor bolts, but also reduces the service life of the electric vibrator and the hydraulic gate valve. Therefore, there is an urgent need for an electric vibration automatic ore discharging device and its use method. Summary of the Invention

[0003] The present invention precisely aims at the technical problems existing in the prior art and provides an electric vibration automatic ore discharging device. The technical solution is ingeniously designed and structurally compact, having the functions of vibrating ore, detecting the ore amount, and flushing impurities on the ore surface; adopting a rotating laser pulse scanning device, which can accurately scan the surface contour of the object to be measured; adopting a set of flushing and recycling device to realize the flushing of clay on the ore surface, making the ore easy to be vibrated down; designing a set of intelligent control method to realize automatic operation, improve labor efficiency, and reduce operation risks.

[0004] To achieve the above object, the technical solution of the present invention is as follows. An electric vibration automatic ore discharging device, the device includes a factory building fixed body, a pulse scanner, an ore discharging trough, a hydraulic cylinder, a gate, an electric vibration device, a hopper, a belt device, a water pool, an ore discharging chute, a flushing device and a gate position sensor. A rotary pulse scanner is installed on the factory building fixed body for scanning the ore quantity in the hopper. A hopper is installed directly below the ore discharging trough and is fixed to the factory building fixed body with expansion screws. The hopper is used to place ore. A hydraulic cylinder is installed in the hopper. One end of the cylinder is installed on the side fixing plate of the hopper, and the other end is used to install the gate for controlling the opening and closing of the gate. A gate position sensor is fixedly installed on the hydraulic cylinder to monitor the position of the ore discharging gate and accurately control the hydraulic gate to achieve accurate ore discharging. A flushing device is installed on the inner side of the hopper door to flush the surface of the ore. An electric vibration device is fixedly installed at the rear end of the hopper door to vibrate the ore to ensure the ore discharging speed. A belt device is installed directly below the hopper for transporting the ore in the hopper to the ore discharging chute. A water pool is built directly below the belt device for centralized treatment of the flushing water.

[0005] The on-site operation box diagram consists of seven parts: an electric vibration current display meter, a flushing device off button, a manual / automatic switch, a flushing device on button, a potentiometer, a hydraulic gate off button, and a hydraulic gate on button. The mode is selected through the manual / automatic switch on the on-site operation box. After selecting the manual mode, press the flushing device on button, and the flushing device will work. Press the flushing device off button to end the operation. Press the hydraulic gate on button, and the hydraulic gate will work. Press the hydraulic gate off button to end the work. The potentiometer is used to adjust the current value during on-site operation, and the value is observed through the electric vibration current display meter. After selecting the automatic mode, the operation will be controlled by the upper computer.

[0006] The upper computer screen diagram consists of four parts: a release / interlock switch, a hydraulic gate opening given value setting, an electric vibration current given value setting, and a volume given value setting. Through the release / interlock switch on the upper computer, when it is set to the release switch, all operations are manual. When it is set to the interlock switch, the operation is an automatic switch. At this time, the current value is controlled and adjusted through the hydraulic gate opening given value setting, the electric vibration current given value setting, and the volume given value setting.

[0007] The PLC control diagram consists of seven parts: an automatic signal, a hydraulic gate opening feedback signal, an electric vibration current feedback signal, a pulse scanner volume feedback signal, a hydraulic gate opening given value signal, an electric vibration current given value signal, and a pulse scanner volume given value signal. The PLC control is mainly used to receive signals and feedback signals to the electric vibration automatic ore discharging device to achieve automated operation.

[0008] The present invention is an electric vibration automatic ore discharging device and method, mainly composed of an electric vibration automatic ore discharging device and PLC automatic control. The electric vibration automatic ore discharging device is installed in a fixed workshop. A hopper is installed directly below the ore discharging trough in the workshop and fixed to the fixed body of the workshop with expansion screws. The hopper is used to store ore. A hydraulic cylinder is installed in the hopper. One end of the hydraulic cylinder is installed on the side fixing plate of the hopper, and the other end is used to install a gate for controlling the opening and closing of the gate. A gate position sensor is installed at a fixed position on the hydraulic cylinder to monitor the position of the ore discharging gate and accurately control the hydraulic gate to achieve precise ore discharging. A flushing device is installed on the inner side of the hopper door to flush the surface of the ore. An electric vibration device is installed at a fixed position at the rear end of the hopper door to vibrate the ore through the electric vibration device to ensure the ore discharging speed. A rotary pulse scanner is installed on the fixed body of the workshop to scan the ore quantity in the hopper. A belt device is installed directly below the hopper to convey the ore in the hopper to the ore discharging trough. A water pool is built directly below the belt device to centrally treat the flushing water. The PLC automatic control mainly operates in manual and remote automatic methods, divided into two methods: on-site manual and remote automatic operation. The on-site manual mode is to operate through the operation box on-site. Select the manual switch through the hand / automatic switch on the on-site operation box, and press the hydraulic gate opening button. This button is a momentary action button and stops when released. Control the opening degree of the gate according to the on-site situation. The hydraulic cylinder drives the gate to move upward, and the hydraulic gate opens. Use the gate position sensor to prevent the gate from opening excessively and causing damage. Adjust the potentiometer to make the electric vibration device work. Press the flushing device opening button to start the flushing mode to flush the surface of the ore to ensure that there are no impurities such as clay in the ore. Then put the ore from the ore discharging trough into the hopper. The ore in the hopper is discharged from the hopper to the belt device through the opening of the hydraulic gate and the vibration of the electric vibration device. The ore is sent into the ore discharging trough through the belt device. The waste water for flushing the ore flows into the water pool uniformly for centralized treatment. During this process, the operator adjusts and processes according to the actual situation of the on-site ore. When there is more ore on the belt, press the hydraulic gate closing button. This button is a momentary action button and stops when released. Reduce the opening degree of the hydraulic gate, and then observe the value of the electric vibration current display meter. Adjust the potentiometer to reduce the vibration frequency of the electric vibration device by changing the electric vibration current value to reduce the amount of ore discharged from the hopper to the belt. When there is less ore on the belt, press the hydraulic gate opening button. This button is a momentary action button and stops when released. Increase the opening degree of the hydraulic gate, and then observe the value of the electric vibration current display meter. Adjust the potentiometer to increase the vibration frequency of the electric vibration device by changing the electric vibration current value to increase the amount of ore discharged from the hopper to the belt. After the work is completed, press the hydraulic gate closing button to close the hydraulic gate, press the flushing device closing button to close the flushing water, and adjust the potentiometer current value to turn off the electric vibration device.Remote automatic operation mode: By selecting the manual / automatic switch on the on-site operation box to the automatic switch, pressing the flush device opening button, and setting the unlock / lock switch on the upper computer screen to the lock switch, all operations are in the automatic operation mode at this time. The automatic signal is transmitted to the input end of the PLC. The operator only needs to enter the value of the ore volume passing through the belt in the bar box for setting the volume given value. The value enters the volume given value signal of the pulse scanner of the PLC and is calculated through the pre-entered data model of the PLC. Through the output end of the hydraulic gate opening given value signal of the PLC, the calculated value is output to the hydraulic cylinder to control the gate opening. Through the output end of the electric vibration current given value signal of the PLC, the calculated value is output to the electric vibration device to control the vibration frequency. The opening feedback signal of the hydraulic gate, the electric vibration current feedback signal, and the volume given value signal of the pulse scanner are then transmitted to the corresponding feedback ends of the PLC. The PLC performs real-time calculation. This process is a closed-loop control. The PLC automatically calculates based on the value of the volume feedback signal of the pulse scanner. When the ore volume is large, the electric vibration current value is reduced to lower the vibration frequency and the hydraulic gate opening value is reduced to control the hydraulic gate opening to become smaller. When the ore volume is small, the electric vibration current value is increased to increase the vibration frequency and the hydraulic gate opening value is increased to control the hydraulic gate opening to become larger. When the unlock / lock switch on the upper computer is selected to the unlock switch, the system is no longer in closed-loop control at this time. The operator can enter the desired values in the bar boxes for setting the hydraulic gate opening given value and the electric vibration current given value on the upper computer screen. The corresponding data given values of the PLC are output to the hydraulic gate and the electric vibration device. At this time, the pulse scanner does not function. This state provides the operator with the ability to perform remote individual operations when the pulse scanner is damaged.

[0009] Compared with the prior art, the present invention has the following advantages: 1) Reducing labor intensity. The original ore discharging method used manual operation. During the operation, personnel needed to continuously adjust the ore discharging amount, which increased the labor intensity of the personnel and reduced the operation efficiency. By adopting an intelligent operation method through transformation, the operation efficiency can be improved and the labor intensity can be reduced.

[0010] 2) Saving human resources. The original ore discharging method was that personnel monitored and operated in the central control room, which required personnel for operation. Now, with the intelligent electric vibration automatic ore discharging device, no operating personnel are needed, saving the personnel allocation.

[0011] 3) Improving operation efficiency. Previously, during the operation process, personnel often spilled the ore outside the belt, resulting in secondary operations and repeated operations, increasing the labor intensity of the personnel and reducing the operation efficiency. Now, the adoption of intelligence can avoid repeated operations and improve the operation efficiency.

[0012] 4) Reduce spare part costs. During the original manual operation, malfunctions such as the up-and-down jolting and vibration of the electric vibration device and the oil leakage due to damage of the gate hydraulic cylinder often occurred due to operational errors, resulting in continuous repair and replacement of spare parts and excessive expenditure on spare part costs. Now, it is changed to an intelligent electric vibration automatic ore discharging device, so that personnel do not need to operate manually, which greatly ensures the smooth operation of the operation and reduces the damage of spare parts. Description of the Drawings

[0013] Figure 1 It is a structural diagram of the electric vibration automatic ore discharging device.

[0014] Figure 2 It is a diagram of the on-site operation box.

[0015] Figure 3 It is a diagram of the upper computer screen.

[0016] Figure 4 It is a PLC control diagram.

[0017] In the figure: 1. Factory building fixed body, 2. Pulse scanner, 3. Ore discharging trough, 4. Hydraulic cylinder, 5. Gate, 6. Electric vibration device, 7. Bin hopper, 8. Belt device, 9. Water pool, 10. Ore outlet trough, 11. Flushing device, 12. Gate position sensor, 13. Electric vibration current display meter, 14. Flushing device off button, 15. Manual / automatic switch, 16. Flushing device on button, 17. Potentiometer, 18. Hydraulic gate off button, 19. Hydraulic gate on button, 20. Release / lock switch, 21. Hydraulic gate opening given value setting, 22. Electric vibration current given value setting, 23. Volume given value setting, 24. Automatic signal, 25. Hydraulic gate opening feedback signal, 26. Electric vibration current feedback signal, 27. Pulse scanner volume feedback signal, 28. Hydraulic gate opening given value signal, 29. Electric vibration current given value signal, 30. Pulse scanner volume given value signal. Detailed Implementation Modes

[0018] To deepen the understanding of the present invention, the following will give a detailed description of this embodiment with reference to the drawings.

[0019] Example 1: As Figure 1As shown in the figure: The electric vibration automatic ore discharging device consists of twelve parts, namely the plant fixed body 1, pulse scanner 2, ore discharging chute 3, hydraulic cylinder 4, gate 5, electric vibration device 6, bin hopper 7, belt device 8, water pool 9, ore discharging trough 10, flushing device 11, and gate position sensor 12. A bin hopper 7 is installed directly below the ore discharging chute 3 and fixed to the plant fixed body with expansion bolts. The bin hopper is used to store ore. A hydraulic cylinder 4 is installed in the bin hopper 7. One end of the cylinder is installed on the side fixing plate of the bin hopper 7, and the other end is used to install the gate 5 for controlling the opening and closing of the gate. A gate position sensor 12 is fixedly installed on the hydraulic cylinder 4 to monitor the position of the ore discharging gate and accurately control the hydraulic gate to achieve precise ore discharging. A flushing device 11 is installed on the inner side of the bin door 7 to wash the surface of the ore. An electric vibration device 6 is fixedly installed at the rear end of the bin door 7 to vibrate the ore through the electric vibration device to ensure the ore discharging speed. A rotary pulse scanner 2 is installed on the plant fixed body 1 to scan the ore quantity in the bin hopper. A belt device 8 is installed directly below the bin hopper 7 to convey the ore in the bin hopper 7 to the ore discharging trough 10. A water pool 9 is built directly below the belt device 8 to centrally treat the flushing water.

[0020] The specific operation is as follows:

[0021] (1) Install a bin hopper directly below the ore discharging chute and fix it to the plant fixed body with expansion bolts. The bin hopper is used to store ore.

[0022] (2) Install a hydraulic cylinder in the bin hopper. One end is installed on the side fixing plate of the bin hopper, and the other end is used to install the gate for controlling the opening and closing of the gate.

[0023] (3) Install a gate position sensor at a fixed position on the hydraulic cylinder to monitor the position of the ore discharging gate, accurately control the hydraulic gate, and achieve precise ore discharging.

[0024] (4) Install a flushing device on the inner side of the bin door to wash the surface of the ore.

[0025] (5) Install an electric vibration device at a fixed position at the rear end of the bin door to vibrate the ore through the electric vibration device to ensure the ore discharging speed.

[0026] (6) Install a rotary pulse scanning device on the plant fixed body to scan the ore quantity in the bin hopper.

[0027] (7) Install a belt device directly below the bin hopper to convey the ore in the bin hopper to the ore discharging trough.

[0028] (8) Build a water pool directly below the belt device to centrally treat the flushing water.

[0029] (9) The design realizes the automated operation of the electric vibration automatic ore discharging device through a PLC device.

[0030] As Figure 2 shown in the figure: The on-site operation box diagram consists of seven parts, namely, the electric vibration current display meter 13, the flushing device closing button 14, the manual / automatic switch 15, the flushing device opening button 16, the potentiometer 17, the hydraulic gate closing button 18, and the hydraulic gate opening button 19. The mode is selected through the on-site operation box manual / automatic switch 15. After selecting the manual mode, press the flushing device opening button 16, and the flushing device will work. Press the flushing device closing button 14 to end the operation; press the hydraulic gate opening button 19, and the hydraulic gate will work. Press the hydraulic gate closing button 18 to end the work; the potentiometer 17 is used to adjust the current value during on-site operation, and the value is observed through the electric vibration current display meter 13; after selecting the automatic mode, the operation will be controlled by the upper computer.

[0031] As Figure 3 shown in the figure: The upper computer screen diagram consists of four parts, namely, the unlocking / locking switch 20, the hydraulic gate opening degree set value setting 21, the electric vibration current set value setting 22, and the volume set value setting 23. When the unlocking / locking switch 20 on the upper computer is set to the unlocking switch, all operations are manual. When it is set to the locking switch, the operation is an automatic switch. At this time, the current value is controlled and adjusted through the hydraulic gate opening degree set value setting 21, the electric vibration current set value setting 22, and the volume set value setting 23. As Figure 4 shown in the figure: The PLC control diagram consists of seven parts, namely, the automatic signal 24, the hydraulic gate opening degree feedback signal 25, the electric vibration current feedback signal 26, the pulse scanner volume feedback signal 27, the hydraulic gate opening degree set value signal 28, the electric vibration current set value signal 29, and the pulse scanner volume set value signal 30. The PLC control is mainly used to receive signals and feedback signals to the electric vibration automatic ore discharging device to realize automated operation.

[0032] Working principle description:

[0033] The present invention is an electric vibration automatic ore discharging device and method, mainly composed of an electric vibration automatic ore discharging device and PLC automation control. As Figures 1-4As shown in the figure: The electric vibration automatic ore discharging device is installed in a fixed workshop. A hopper 7 is installed directly below the ore discharging chute 3 in the workshop and is fixed to the fixed body of the workshop with expansion screws. The hopper is used to store ore. A hydraulic cylinder 4 is installed in the hopper 7. One end of the cylinder is installed on the side fixing plate of the hopper 7, and the other end is used to install a gate 5 to control the opening and closing of the gate. A gate position sensor 12 is installed at a fixed position on the hydraulic cylinder 4 to monitor the position of the ore discharging gate and precisely control the hydraulic gate to achieve accurate ore discharging. A flushing device 11 is installed on the inner side of the hopper door 7 to flush the surface of the ore. An electric vibration device 6 is installed at a fixed position at the rear end of the hopper door 7 to vibrate the ore through the electric vibration device to ensure the ore discharging speed. A rotary pulse scanner 2 is installed on the fixed body 1) of the workshop to scan the ore quantity in the hopper. A belt device 8 is installed directly below the hopper 7 to convey the ore in the hopper 7 to the ore discharging chute 10. A water pool 9 is built directly below the belt device 8 to centrally treat the flushing water. The PLC automatic control mainly operates by manual and remote automatic methods, divided into two methods: on-site manual and remote automatic operation. The on-site manual mode is to operate through the operation box on-site. Select the manual switch through the hand / auto switch 15 on the on-site operation box. Press the hydraulic gate opening button 19. This button is a momentary action button and stops when released. Control the opening degree of the gate according to the on-site situation. The hydraulic cylinder 4 drives the gate 5 to move upward, and the hydraulic gate opens. Use the gate position sensor 12 to prevent the gate from opening excessively and causing damage. Adjust the potentiometer 17 to make the electric vibration device 6 work. Press the flushing device opening button 16 to start the flushing mode to flush the surface of the ore to ensure that there are no impurities such as clay in the ore. Then put the ore from the ore discharging chute 3 into the hopper 7. The ore in the hopper 7 is discharged from the hopper 7 to the belt device 8 through the opening of the hydraulic gate and the vibration of the electric vibration device 6. The ore is sent into the ore discharging chute 10 through the belt device 8. The waste water for flushing the ore flows into the water pool 9 uniformly for centralized treatment. During this process, the operator adjusts and processes according to the actual situation of the on-site ore. When there is more ore on the belt, press the hydraulic gate closing button 18. This button is a momentary action button and stops when released. Reduce the opening degree of the hydraulic gate, and then observe the value of the electric vibration current display meter 13. Adjust the potentiometer 17 to reduce the vibration frequency of the electric vibration device 6 by changing the electric vibration current value, so that the amount of ore discharged from the hopper 7 to the belt is reduced. When there is less ore on the belt, press the hydraulic gate opening button 19. This button is a momentary action button and stops when released. Increase the opening degree of the hydraulic gate, and then observe the value of the electric vibration current display meter 13. Adjust the potentiometer 17 to increase the vibration frequency of the electric vibration device 6 by changing the electric vibration current value, so that the amount of ore discharged from the hopper 7 to the belt is increased. After the work is completed, press the hydraulic gate closing button 18 to close the hydraulic gate, press the flushing device closing button 14 to close the flushing water, and adjust the current value of the potentiometer 17 to turn off the electric vibration device 6.Remote automatic operation mode: such as. Figures 1-4 As shown in the figure: By selecting the hand / automatic switch 15 on the on-site operation box as the automatic switch, pressing the flushing device opening button 16, and selecting the unlocking / locking switch 20 on the upper computer screen as the locking switch, all operations are in the automatic operation mode at this time. The automatic signal 24 is transmitted to the input end of the PLC. The operator only needs to input the value of the ore volume passing through the belt in the bar graph of the volume given value setting 23. The value enters the volume given value signal 30 of the pulse scanner of the plc. After being calculated by the data model pre-entered in the plc, the calculated value is output through the output end of the hydraulic gate opening given value signal 28 of the plc to control the opening of the hydraulic cylinder of the gate. Through the output end of the electric vibration current given value signal 29 of the plc, the calculated value is output to the electric vibration device 6 to control the vibration frequency. The opening feedback signal 25 of the hydraulic gate, the electric vibration current feedback signal 26, and the volume given value signal 30 of the pulse scanner are transmitted to the corresponding feedback ends of the plc again. The plc performs real-time calculation. This process is a closed-loop control. The plc automatically calculates according to the value of the volume feedback signal 27 of the pulse scanner. When the ore volume is large, the electric vibration current value is reduced to reduce the vibration frequency and the opening value of the hydraulic gate is reduced to control the reduction of the opening of the hydraulic gate. When the ore volume is small, the electric vibration current value is increased to increase the vibration frequency and the opening value of the hydraulic gate is increased to control the increase of the opening of the hydraulic gate. When the unlocking / locking switch 20 on the upper computer is selected as the unlocking switch, the system is not in closed-loop control at this time. The operator can input the desired value in the bar graphs of the hydraulic gate opening given value setting 21 and the electric vibration current given value setting 22 on the upper computer screen. The corresponding data given value of the plc is output to the hydraulic gate and the electric vibration device 6. At this time, the pulse scanner 2 does not play a role. This state provides the operator with the ability to perform remote individual operations when the pulse scanner 2 is damaged.

[0034] Description of the working process:

[0035] 1. Description of the working process of the electric vibration ore discharging device:

[0036] Such as Figure 1 As shown in the figure: Manual operation: The ore is put into the hopper 7 from the ore discharging trough 3. The gate in the hopper is composed of a hydraulic cylinder 4 and a gate 5. The gate 5 is driven to open and close by controlling the hydraulic cylinder 4. The opening of the gate is limited by the gate position sensor 12. The ore enters the hopper 7, and the ore surface is washed by the flushing device 11 to remove impurities such as clay on the ore surface. Then, the ore is shaken from the hopper 7 to the belt device 8 by the electric vibration device 6. The ore is transported to the ore discharging trough 10 through the belt device 8. The waste water after flushing is collected and treated centrally by the water tank 9. When the operator encounters abnormal ore volume, the operator adjusts the gate opening and the electric vibration frequency according to the actual situation and operation experience to ensure the normal operation of ore discharging.

[0037] PLC remote operation: The ore is put into the hopper 7 from the ore discharging chute 3. The gate in the hopper 7 consists of a hydraulic cylinder 4 and a gate 5. By controlling the hydraulic cylinder 4, the gate 5 is driven to open and close. The opening degree of the gate is limited by the gate position sensor 12. The ore enters the hopper 7, and the ore surface is washed by the washing device 11 to remove impurities such as clay on the ore surface. Then, the ore is shaken out of the hopper 7 onto the belt device 8 by the electric vibration device 6. The ore is transported to the ore discharging chute 10 through the belt device 8. The waste water after washing is centrally recovered and treated by the water tank 9. When the ore quantity is abnormal, the ore is scanned and compared by the pulse scanner 2, and the data is fed back to the PLC. The PLC controls the gate opening degree and the electric vibration frequency by comparison to ensure the normal operation of ore discharging.

[0038] 2. Working description of the PLC-controlled electric vibration automatic ore discharging device:

[0039] Such as Figures 2-4Shown: On-site manual operation mode: Select the manual switch on the on-site operation box's hand / auto switch 15, then press the hydraulic gate opening button 19. Control the hydraulic cylinder 4 to drive the gate 5 to move upward in a jogging manner, and the hydraulic gate opens. Due to the protection of the gate position sensor 12, the opening of the hydraulic gate is restricted to prevent excessive opening of the gate and damage. Observe the data value of the electro-vibrating ammeter 13, adjust the potentiometer 17 to make the electro-vibrating device 6 work, press the flushing device opening button 16 to start the flushing mode, and flush the surface of the ore to ensure that there are no impurities such as clay on the ore. Then put the ore into the hopper 7 from the ore discharge chute 3. The ore in the hopper is discharged from the hopper to the belt device 8 through the opening of the hydraulic gate and the vibration of the electro-vibrating device 6, and the ore is sent into the ore discharge chute 10 through the belt device. The wastewater for flushing the ore flows uniformly into the water tank 9 for centralized treatment. This process is when the amount of ore on the belt is normal. When there is more ore on the belt, press the hydraulic gate closing button 18, control the hydraulic cylinder 4 to drive the gate 5 to move downward in a jogging manner, the hydraulic gate closes, reduce the opening of the hydraulic gate, observe the data value of the electro-vibrating ammeter 13, adjust the potentiometer 17 to reduce the electro-vibrating current value, and reduce the vibration frequency of the electro-vibrating device 6 by reducing the electro-vibrating current value to reduce the amount of ore discharged from the hopper 7 to the belt. When there is less ore on the belt, press the hydraulic gate opening button 19, control the hydraulic cylinder 4 to drive the gate 5 to move upward in a jogging manner, increase the opening of the hydraulic gate, observe the data value of the electro-vibrating ammeter 13, adjust the potentiometer 17 to increase the electro-vibrating current value, and increase the vibration frequency of the electro-vibrating device 6 by increasing the electro-vibrating current value to increase the amount of ore discharged from the hopper 7 to the belt. After the work is completed, press the hydraulic gate closing button 18 to close the hydraulic gate, press the flushing device closing button 14 to close the flushing water, adjust the potentiometer 17 to the lowest level, and turn off the electro-vibrating device 6.

[0040] Remote automatic operation mode: By selecting the manual / automatic switch 15 on the on-site operation box to the automatic switch, pressing the flushing device opening button 16, and setting the unlocking / locking switch 20 on the upper computer screen to the locking switch, all operations are in the automatic operation mode at this time. The automatic signal 24 is transmitted to the input end of the PLC. The operator only needs to enter the value of the ore volume passing through the belt in the bar graph of the volume given value setting 23. The value enters the volume given value signal 30 of the pulse scanner of the PLC and is calculated through the pre-input data model of the PLC. Through the output end of the hydraulic gate opening given value signal 28 of the PLC, the calculated value is output to the hydraulic cylinder to control the opening of the gate. Through the output end of the electric vibration current given value signal 29 of the PLC, the calculated value is output to the electric vibration device 6 to control the vibration frequency. The opening feedback signal 25 of the hydraulic gate, the electric vibration current feedback signal 26, and the volume given value signal 30 of the pulse scanner are transmitted to the corresponding feedback ends of the PLC again, and the PLC performs real-time calculation. This process is a closed-loop control. The PLC automatically calculates based on the value of the volume feedback signal 27 of the pulse scanner. When the ore quantity is large, the electric vibration current value is reduced to reduce the vibration frequency and the opening value of the hydraulic gate is reduced to control the reduction of the opening of the hydraulic gate. When the ore quantity is small, the electric vibration current value is increased to increase the vibration frequency and the opening value of the hydraulic gate is increased to control the increase of the opening of the hydraulic gate. When the unlocking / locking switch 20 on the upper computer is selected as the unlocking switch, the system is no longer in closed-loop control at this time. The operator can enter the desired values in the bar graphs of the hydraulic gate opening given value setting 21 and the electric vibration current given value setting 22 on the upper computer screen, and the corresponding data given values of the PLC are output to the hydraulic gate and the electric vibration device 6. At this time, the pulse scanner 2 does not function. This state provides the operator with the ability to perform remote individual operations when the pulse scanner 2 is damaged. After the work is completed, press the flushing device closing button 14 to close the flushing water and turn off the upper computer.

[0041] It should be noted that the above embodiments are not used to limit the protection scope of the present invention. Equivalent transformations or substitutions made on the basis of the above technical solutions fall within the protection scope of the claims of the present invention.

Claims

1. An electric vibration automatic ore discharging device, characterized in that, The device includes a plant fixed body (1), an ore discharge chute (3), a hydraulic cylinder (4), a gate (5), an electric vibration device (6), a hopper (7), a belt device (8), an ore discharge chute (10), and a gate position sensor (12). A hopper (7) is installed directly below the ore discharge chute (3) and fixed to the plant fixed body. A hydraulic cylinder (4) is installed in the hopper (7). One end of the hydraulic cylinder is installed on the side fixing plate of the hopper (7), and the other end is used to install the gate (5) for controlling the opening and closing of the gate. A gate position sensor (12) is fixedly installed on the hydraulic cylinder (4) to monitor the position of the ore discharge gate and precisely control the hydraulic gate to achieve precise ore discharge. An electric vibration device (6) is fixedly installed at the rear end of the hopper door (7) to vibrate the ore through the electric vibration device to ensure the ore discharge speed. A belt device (8) is installed directly below the hopper (7) to convey the ore in the hopper (7) to the ore discharge chute (10).

2. The electric vibration automatic ore discharging device according to claim 1, characterized in that, The device includes a pulse scanner (2). A rotary pulse scanner (2) is installed on the plant fixed body (1) for scanning the ore quantity in the hopper.

3. The electric vibration automatic ore discharging device according to claim 2, wherein, A flushing device (11) is installed on the inner side of the hopper door (7) to flush the surface of the ore. A water pool (9) is built directly below the belt device (8) for centralized treatment of the flushing water.

4. A control method for an electric vibration automatic ore discharging device, characterized in that, Using the electric vibration automatic ore discharge device according to any one of claims 1-3, the control method is as follows: The PLC automatic control mainly operates by manual and remote automatic methods, which are divided into two methods: on-site manual and remote automatic operation. The on-site manual mode is to operate through the operation box on-site. Select the manual switch through the on / off switch (15) on the on-site operation box, and press the hydraulic gate opening button (19). This button is a momentary action button, and it stops when released. Control the opening degree of the gate according to the on-site situation. The hydraulic cylinder (4) drives the gate (5) to move upward, and the hydraulic gate opens. Use the gate position sensor (12) to prevent the gate from being damaged due to excessive opening. Adjust the potentiometer (17) to make the electric vibration device (6) work. Press the flushing device opening button (16) to start the flushing mode and flush the surface of the ore to ensure that there are no impurities such as clay on the ore. Then put the ore from the ore discharge chute (3) into the hopper (7). The ore in the hopper (7) is discharged from the hopper (7) to the belt device (8) through the opening of the hydraulic gate and the vibration of the electric vibration device (6). The ore is sent into the ore discharge chute (10) through the belt device (8). The waste water for flushing the ore flows into the water pool (9) uniformly for centralized treatment. During this process, the operator adjusts and processes according to the actual situation of the on-site ore. When there is a large amount of ore on the belt, press the hydraulic gate closing button (18). This button is a momentary action button, and it stops when released. Reduce the opening degree of the hydraulic gate, and then observe the value of the electric vibration current display meter (13), adjust the potentiometer (17), and change the electric vibration current value to reduce the vibration frequency of the electric vibration device (6), so that the amount of ore discharged from the hopper (7) to the belt decreases. When there is less ore on the belt, press the hydraulic gate opening button (19). This button is a momentary action button, and it stops when released. Increase the opening degree of the hydraulic gate, and then observe the value of the electric vibration current display meter (13), adjust the potentiometer (17), and change the electric vibration current value to increase the vibration frequency of the electric vibration device (6), so that the amount of ore discharged from the hopper (7) to the belt increases. After the work is completed, press the hydraulic gate closing button (18) to close the hydraulic gate, press the flushing device closing button (14) to close the flushing water, and adjust the current value of the potentiometer (17) to turn off the electric vibration device (6); Remote automatic operation mode: By selecting the on / automatic switch (15) on the on-site operation box as the automatic switch, pressing the flushing device opening button (16), and selecting the unlocking / locking switch (20) in the upper computer screen as the locking switch, all operations are in the automatic operation mode at this time. The automatic signal (24) is transmitted to the input end of the PLC. The operator only needs to input the value of the ore volume passing through the belt in the bar box for setting the volume given value (23). The value enters the volume given value signal (30) of the pulse scanner of the plc and is calculated through the pre-input data model of the plc. Through the output end of the hydraulic gate opening given value signal (28) of the plc, the calculated value is output to the hydraulic cylinder to control the gate opening. Through the output end of the electric vibration current given value signal (29) of the plc, the calculated value is output to the electric vibration device (6) to control the vibration frequency. The opening feedback signal (25) of the hydraulic gate, the electric vibration current feedback signal (26), and the volume given value signal (30) of the pulse scanner are then transmitted to the corresponding feedback ends of the plc. The plc performs real-time calculation. This process is a closed-loop control. The plc automatically calculates based on the value of the volume feedback signal (27) of the pulse scanner. When the ore quantity is large, the electric vibration current value is reduced to reduce the vibration frequency and the hydraulic gate opening value is reduced to control the hydraulic gate opening to become smaller. When the ore quantity is small, the electric vibration current value is increased to increase the vibration frequency and the hydraulic gate opening value is increased to control the hydraulic gate opening to become larger. When the unlocking / locking switch (20) of the upper computer is selected as the unlocking switch, the system is no longer in closed-loop control at this time. The operator can input the desired values in the bar boxes for setting the hydraulic gate opening given value (21) and the electric vibration current given value (22) in the upper computer screen. The corresponding data given values of the plc are output to the hydraulic gate and the electric vibration device (6). At this time, the pulse scanner (2) does not play a role.

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