Verification device and method for sintering batching electronic belt scale

Abstract

The invention discloses a verification device and method for a sintering batching electronic belt scale. The verification device comprises a displacement part, a square frame, an opening and closing part, a cleaning part and a weighing part, the displacement parts are arranged on the ground on the two sides of the large belt; the square frame is arranged on the displacement part; the opening and closing part, the cleaning part and the weighing part are all arranged on the square frame; and the opening and closing part is in contact with the weighing part. According to the invention, the inspection efficiency of each electronic belt scale on the sintering batching large belt is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present invention relates to a calibration device and method for a sintering batching electronic belt scale, in particular to a device and method capable of calibrating each electronic belt scale in a sintering batching process, belonging to the technical field of electronic belt scale batch calibration equipment. Background Art

[0002] In the sintering production process, sintering batching is achieved by loading and unloading materials from different silos to the large belt at the same time. The batching process is to set the various raw materials through precise ratio calculation, and use the electronic belt scale of each silo to automatically and instantly adjust according to the size of the material flow to ensure accurate material discharge, so that the chemical composition and physical properties of the sintered ore produced meet the technical requirements, thereby ensuring the stability and efficiency of blast furnace smelting. However, in production, due to the nature of the raw materials and the different levels of moisture in them, different degrees of sticky materials will adhere to the small belts. At the same time, according to the different types of raw materials, the silo door must also be adjusted frequently. These unfavorable factors that affect the accuracy of material discharge will cause deviations in material discharge, which requires manual Check, that is, manually use the weighing tray to perform running weighing comparison and correction; running weighing is a general term in the industry, and the process is that the staff puts the material tray on the large belt, so that it passes directly under the electronic belt scale to receive the material, and then weighs the material tray, and the material discharge data of the electronic belt scale is obtained according to the weight carried by the material tray; however, the number of electronic belt scales above the large belt is large, and the spacing is far apart. The staff's running weighing calibration of each electronic belt scale one by one is inefficient and the work intensity is high; in addition, there is a certain risk for the staff to perform running weighing operation next to the large belt; therefore, a device and method that can uniformly calibrate each electronic belt scale above the large belt is needed. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a calibration device and method for an electronic belt scale for sintering batching, which can not only reduce the labor intensity of the staff, but also improve the calibration efficiency of each electronic belt scale in the sintering batching process.

[0004] The problem described in the present invention is solved by the following technical solutions: A calibration device for an electronic belt scale for sintering batching comprises a displacement part, a square frame, an opening and closing part, a cleaning part and a weighing part; the displacement part is arranged on the ground at both sides of a large belt; the square frame is arranged on the displacement part; the opening and closing part, the cleaning part and the weighing part are all arranged on the square frame; the opening and closing part is in contact with the weighing part.

[0005] The above-mentioned calibration device for the electronic belt scale for sintering batching, the square frame includes a side long plate, a short vertical plate and a material dividing mechanism; the number of the side long plates and the short vertical plate is two, and the head and tail are vertically connected to form a frame structure, the two side long plates are opposite to each other, and the two short vertical plates are opposite to each other; the top end surface of the side long plate is flush with the top end surface of the short vertical plate, and the vertical height of the bottom end surface of the short vertical plate is lower than the vertical height of the bottom end surface of the side long plate; the material dividing mechanism is located between the end surfaces of the two short vertical plates that are close to each other.

[0006] The above-mentioned calibration device for the electronic belt scale for sintering ingredients, the weighing part includes a first weighing mechanism and a second weighing mechanism; the first weighing mechanism and the second weighing mechanism have the same structure, the first weighing mechanism and the second weighing mechanism are both arranged between two short vertical plates, and the positions of the first weighing mechanism and the second weighing mechanism are symmetrical about the connecting line of the center points of the two short vertical plates.

[0007] The above-mentioned calibration device for the electronic belt scale for sintering batching, the first weighing mechanism includes a flap, a rotating shaft, a protruding shaft, a weighing plate and a weighing device; the rotating shaft is axially connected between the end faces of the two short vertical plates close to each other, and the rotating shaft is located at the end of the short vertical plate; the height of the rotating shaft is higher than the height of the bottom end of the side long plate; a first inclined baffle is arranged on the inner wall of the side long plate, and the first inclined baffle is located directly above the rotating shaft, and the end of the first inclined baffle in contact with the side long plate is higher than the end of the first inclined baffle away from the side long plate; the long side of the flap is connected to the rotating shaft, and the length direction of the flap is parallel to the axis center line direction of the rotating shaft; the axis center line of the rotating shaft is parallel to the length direction of the side long plate; The two side walls of the flap in the length direction of the side long plate are in contact with the two short vertical plates respectively; the short vertical plate is provided with an arc hole, and the axis center line of the arc hole coincides with the axis center line of the rotating shaft; a protruding shaft is provided on the end surface of the flap in contact with the short vertical plate, and the protruding shaft passes through the arc hole on the short vertical plate; the top end surface of the flap is provided with a guide hole and a weighing device; the bottom end surface of the weighing plate is provided with a guide rod, and the guide rod is inserted into the guide hole on the top end surface of the flap; the bottom end surface of the weighing plate contacts the weighing device on the top end surface of the flap; the length and width dimensions of the weighing plate are consistent with the length of the flap; the signal output end of the weighing device is connected to the signal input end of the CPU.

[0008] The above-mentioned calibration device for the electronic belt scale for sintering batching, the material distribution mechanism includes a first V-shaped baffle and a side push piece; the first V-shaped baffle is arranged between two short vertical plates, and the first V-shaped baffle is located in the middle position of the short vertical plates; the tip of the first V-shaped baffle is vertically upward; the bottom end surface of the first V-shaped baffle does not contact the top end surface of the weighing plate; the number of the side push pieces is two, and they are symmetrically arranged on both sides of the first V-shaped baffle along the length direction of the short vertical plates.

[0009] The above-mentioned calibration device for the electronic belt scale for sintering batching, the side push member includes a side push plate and an electric cylinder; the electric cylinder is arranged on the inner wall of the first V-shaped baffle plate, and the axis line of its piston rod is parallel to the length direction line of the short vertical plate; a hole is arranged on the side wall of the first V-shaped baffle plate, and the electric cylinder piston rod passes through the hole on the side wall of the first V-shaped baffle plate; the end of the electric cylinder piston rod is connected to the side push plate, and the end face of the side push plate close to the first V-shaped baffle plate is pressed against the side wall of the first V-shaped baffle plate; the signal input end of the electric cylinder is connected to the signal output end of the CPU.

[0010] The above-mentioned calibration device for the electronic belt scale for sintering batching, the number of the opening and closing parts is two, and they are respectively arranged on the outer walls of the two short vertical plates; the opening and closing part includes an opening and closing mechanism and a long hollow frame; the number of the opening and closing mechanisms is two, and they are symmetrically arranged on both sides of the outer wall of the short vertical plate; the opening and closing mechanism includes a servo motor, a lead screw and a lead screw nut; the servo motor is arranged at the top of the short vertical plate, and a support plate is arranged at the bottom of the short vertical plate, and the top of the lead screw is connected to the output shaft of the servo motor, and the other end of the lead screw is connected to the support plate axis; the lead screw nut is arranged on the lead screw; the two ends of the long hollow frame in the length direction are respectively connected to the two lead screw nuts; the two protruding shafts on the same side of the first weighing mechanism and the second weighing mechanism both pass through the inner strip hole of the same long hollow frame; the signal input end of the servo motor is connected to the signal output end of the CPU; the top of the outer wall of the short vertical plate is provided with a second inclined baffle, and the second inclined baffle is located directly above the servo motor, and the height of the end of the second inclined baffle connected to the short vertical plate is higher than the height of the end of the second inclined baffle away from the short vertical plate.

[0011] The above-mentioned calibration device for the electronic belt scale for sintering ingredients, the cleaning part includes a second V-shaped baffle, an air pipe and a nozzle; the second V-shaped baffle is arranged between two short vertical plates, and its vertical height is lower than the bottom end height of the side long plate; the tip of the second V-shaped baffle is vertically upward; the second V-shaped baffle is located between the two arc-shaped holes on the short vertical plate; the air pipe is located between the two short vertical plates, and it is located directly below the second V-shaped baffle; nozzles are arranged on the side walls on both sides of the air pipe in the horizontal direction, and the nozzles are connected to the inner cavity of the air pipe; the height of the nozzle is lower than the height of the bottom end of the second V-shaped baffle; a joint is arranged at the end of the air pipe, the joint passes through the side wall of the short vertical plate, and the joint is connected to the air pump; the signal input end of the air pump is connected to the signal output end of the CPU.

[0012] The above-mentioned calibration device for the electronic belt scale for sintering ingredients, the number of the displacement parts is two, and they are symmetrically arranged on the ground on both sides of the large belt; the displacement part includes a support plate, a vertical support plate, a wheel, a motor and a magnetic block; two vertical support plates are arranged at the bottom end of the support plate, and the support plate is connected to the side long plate through a bracket; tracks are arranged on the ground on both sides of the large belt, and the center line of the track is parallel to the center line of the large belt; wheels and motors are arranged at the bottom end of the vertical support plate, the motor output shaft is connected to the center of the wheel, and the wheel is mounted on the track; a magnetic block is arranged on the end surface of the support plate close to the large belt; magnetic induction switches are arranged at the corresponding positions of the large belt racks directly below each electronic belt scale, and the signal output end of the magnetic induction switch is connected to the signal input end of the CPU; the magnetic block and the magnetic induction switch are at the same vertical height; a display screen is arranged on the outer wall of the support plate, and the signal input end of the display screen is connected to the signal output end of the CPU.

[0013] A calibration method for an electronic belt scale for sintering batching comprises the following steps: In the initial state, the wheel is located at the very end of the track; the long hollow frame is located at the top of the arc hole of the short vertical plate, and the position of the protruding shaft is consistent with the position of the long hollow frame; the flap and the weighing plate are in a horizontal state; Step 1: When it is necessary to calibrate each electronic belt scale above the large belt, start the device, the motor drives the wheel to rotate, and then drives the device to move forward at the same speed as the large belt, passing under each electronic belt scale in turn until the end of the track; Step 2: A plurality of magnetic induction switches are arranged on the large belt frame, and there is an electronic belt scale directly above each magnetic induction switch; the device moves forward on the track, and the magnetic block triggers the magnetic induction switch corresponding to the position below the first electromagnetic belt scale, which means that the device has reached the position directly below the first electronic belt scale, and the weight data detected next is the data of the first electronic belt scale; the device continues to move forward until it completely passes below the discharge port of the first electronic belt scale; in the process of the device moving forward and passing the first electronic belt scale, the material on the electronic belt scale falls on the weighing plate, and when the data on the weighing device no longer changes, it means that the device has completely passed the first electronic belt scale; then the electric cylinder is started to push the side push plate to push the material pressed on the side push plate away from the side push plate, and then the electric cylinder is reset, and the side push plate is re-fitted and pressed against the side wall of the first V-shaped baffle; Step 3: The weighing device calculates the weight of the material received by the first electronic belt scale when the weighing plate passes at the speed of the large belt, and the weight data of the material discharged by the first electronic belt scale is recorded on the display screen; Step 4: After recording the weight, start the servo motor to drive the screw nut downward, and the screw nut drives the long hollow frame downward synchronously. When the long hollow frame moves downward, it drives the protruding shaft to move downward along the arc hole, which drives the flipping of the flap and weighing plate assembly, and unloads the material carried on it to the large belt directly below; Step 5: When the protruding shaft moves to the bottom of the arc hole, the two bearing plates tilt downward; start the air pump, inject air into the air pipe, and the air flow is sprayed onto the upper surface of the bearing plate through the nozzle to purge the residual or adhered materials on the weighing plate. After a certain period of purge, turn off the air pump, and control the servo motor to reverse and drive the lead screw nut upward, drive the protruding shaft upward, and then drive the flap and weighing plate assembly to reset to a horizontal state; Step 6: The device continues to move forward until the magnetic block triggers the signal of the magnetic induction switch under the second electronic belt scale, and then repeats the above actions until the device moves to the end, completes the detection of all electronic belt scales and records the data on the display screen; Step 7: After the device moves to the end, keep the screw nut at the bottom. At this time, the flap and the load-bearing plate assembly is in a tilted state, and the motor reverses to drive the device to reset and move back to the initial position. During the return process, due to the tilt of the flap, the material on the electronic belt scale naturally passes through the load-bearing plate and falls onto the large belt until the device moves to the initial position; the staff compares the data on the display screen with the data of the electronic belt scale body, and then learns the error of each electronic belt scale.

[0014] The present invention drives the rest of the electronic belt scales passing over the large belt through the displacement part; the weight of the material dropped on the weighing plate when passing through the electronic belt scale is weighed through the weighing part; the weighing plate is cleaned through the cleaning part to reduce subsequent errors as much as possible; the material weighed by the weighing part is unloaded through the opening and closing part; in the past, when the electronic belt scale was inspected, a large plate was placed on the large belt and passed through the electronic belt scale to inspect the weight of the large plate. The length of the weighing plate of the present invention is known, and its speed when passing through the electronic belt scale is consistent with that of the large belt, which completely imitates the passing process of the large plate, reduces manual labor intensity, and improves efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure at a low angle after the displacement part, the first inclined baffle plate, the second inclined baffle plate and the material dividing mechanism are removed from the present invention; Figure 3 It is a schematic diagram of the elevation angle three-dimensional structure after removing the displacement part, the first inclined baffle, the second inclined baffle and the material dividing mechanism of the present invention.

[0016] The list of numbers in the figure is: 1. Large belt, 2. Electronic belt scale, 3. Side long plate, 4. Short vertical plate, 5. Flip plate, 6. Protruding shaft, 7. Weighing plate, 8. First inclined baffle, 9. First V-shaped baffle, 10. Side push plate, 11. Long hollow frame, 12. Servo motor, 13. Screw nut, 14. Second V-shaped baffle, 15. Air pipe, 16. Second inclined baffle, 17. Support plate, 18. Vertical support plate, 19. Wheel, 20. Motor, 21. Magnetic induction switch. DETAILED DESCRIPTION

[0017] See also Figure 1 , 2 and Figure 3 The present invention comprises a displacement part, a square frame, an opening and closing part, a cleaning part and a weighing part; the displacement part is arranged on the ground on both sides of the large belt 1; the displacement part drives the remaining parts to pass under each electronic belt scale in turn along the transportation direction of the large belt; the square frame is arranged on the displacement part; the opening and closing part, the cleaning part and the weighing part are all arranged on the square frame; the opening and closing part is in contact with the weighing part. The opening and closing part is used for unloading; the weighing part is used for weighing the materials dropped from the electronic belt scale; the cleaning part is used to clean the materials remaining on the weighing plate 7.

[0018] The square frame includes a side long board 3, a short vertical board 4 and a material dividing mechanism; the number of the side long board 3 and the short vertical board 4 are both two, and they are vertically connected head to tail to form a frame structure, the two side long boards 3 are opposite to each other, and the two short vertical boards 4 are opposite to each other; the top end surface of the side long board 3 is flush with the top end surface of the short vertical board 4, and the vertical height of the bottom end surface of the short vertical board 4 is lower than the vertical height of the bottom end surface of the side long board 3; the downward protruding part of the short vertical board 4 is used to provide an arc track for the protruding shaft 6; secondly, it provides installation space for the cleaning part to ensure that the cleaning part can be aligned with its top end surface for jet blowing after the weighing plate is tilted; the material dividing mechanism is located between the end surfaces of the two short vertical boards 4 that are close to each other, and the function of the material dividing mechanism is that since the two weighing plates need to be tilted and turned down, there is a gap between the two weighing plates, which is used to reserve space for them when they are turned over to ensure that they can be turned over smoothly; and the existence of the material dividing mechanism ensures that the material is not discharged from the gap during unloading, and ensures that the material from the electronic belt scale can fall smoothly onto the two weighing plates.

[0019] The weighing part includes a first weighing mechanism and a second weighing mechanism; the two weighing mechanisms cooperate to weigh the materials from the electronic belt scale; the first weighing mechanism and the second weighing mechanism have the same structure, and the first weighing mechanism and the second weighing mechanism are both arranged between the two short vertical plates 4, and the positions of the first weighing mechanism and the second weighing mechanism are symmetrical about the center point connection line of the two short vertical plates 4; after weighing the materials, the two weighing mechanisms can unload by flipping and unloading the materials on them onto the large belt below.

[0020] The first weighing mechanism comprises a flap 5, a rotating shaft, a protruding shaft 6, a weighing plate 7 and a weighing device; the rotating shaft is axially connected between the end faces of the two short vertical plates 4 close to each other, and the rotating shaft is located at the end of the short vertical plate 4; the height of the rotating shaft is higher than the height of the bottom end of the side long plate 3; the flap 5 can be smoothly turned over by the rotating shaft, and then the material is unloaded onto the large belt; a first inclined baffle 8 is arranged on the inner wall of the side long plate 3, and the first inclined baffle 8 is located directly above the rotating shaft, and the end of the first inclined baffle 8 in contact with the side long plate 3 is higher than the end of the first inclined baffle 8 away from the side long plate 3; the function of the first inclined baffle 8 is to avoid jamming of the material close to the rotating shaft as much as possible, and ensure that the material falls onto the weighing plate as much as possible; the long side of the flap 5 is connected to the rotating shaft, and the length direction of the flap 5 is parallel to the axis center line direction of the rotating shaft; the axis center line of the rotating shaft is parallel to the length direction of the side long plate 3; the flap The two side walls of the plate 5 in the length direction of the side long plate 3 are in contact with the two short vertical plates 4 respectively; the short vertical plate 4 is provided with an arc hole, and the axis center line of the arc hole coincides with the axis center line of the rotating shaft; the end surface of the flap 5 in contact with the short vertical plate 4 is provided with a protruding shaft 6, and the protruding shaft 6 passes through the arc hole on the short vertical plate 4; by driving the arc movement of the protruding shaft 6, the flipping movement of the end of the flap 5 away from the rotating shaft is driven; the top end surface of the flap 5 is provided with a guide hole and a weighing device; the bottom end surface of the weighing plate 7 is provided with a guide rod, and the guide rod is inserted into the guide hole of the top end surface of the flap 5; the bottom end surface of the weighing plate 7 touches and presses on the weighing device on the top end surface of the flap 5; after the material falls onto the weighing plate, it is weighed by the weighing device at its bottom; the length and width dimensions of the weighing plate 7 are consistent with the length of the flap 5; the signal output end of the weighing device is connected to the signal input end of the CPU.

[0021] The material dividing mechanism includes a first V-shaped baffle plate 9 and a side push piece; the first V-shaped baffle plate 9 is arranged between the two short vertical plates 4, and the first V-shaped baffle plate 9 is located in the middle position of the short vertical plates 4; that is, the first V-shaped baffle plate 9 is located directly above the gap position between the two weighing plates 7, successfully blocking the gap to avoid leakage of material from the gap; the tip of the first V-shaped baffle plate 9 is vertically upward; the bottom end surface of the first V-shaped baffle plate 9 does not contact the top end surface of the weighing plate 7; the number of the side push pieces is two, and they are symmetrically arranged on both sides of the first V-shaped baffle plate 9 along the length direction of the short vertical plates 4.

[0022] The side thrust member includes a side thrust plate 10 and an electric cylinder; the electric cylinder is arranged on the inner wall of the first V-shaped baffle plate 9, and the axis line of its piston rod is parallel to the length direction line of the short vertical plate 4; a hole is arranged on the side wall of the first V-shaped baffle plate 9, and the electric cylinder piston rod passes through the hole on the side wall of the first V-shaped baffle plate 9; the end of the electric cylinder piston rod is connected to the side thrust plate 10, and the end face of the side thrust plate 10 close to the first V-shaped baffle plate 9 is pressed against the side wall of the first V-shaped baffle plate 9; the side thrust plate 10 is driven to advance and retreat by the extension and contraction of the electric cylinder piston rod, thereby realizing the pushing away of the materials piled on the side thrust plate 10, avoiding the materials leaning against the side thrust plate 10 and affecting the weighing accuracy; ensuring that the materials are on the weighing plate as much as possible; the signal input end of the electric cylinder is connected to the signal output end of the CPU.

[0023] There are two opening and closing parts, which are respectively arranged on the outer walls of the two short vertical plates 4; the function of the opening and closing parts is to drive the combination of the flap and the weighing plate to flip over, and then unload the materials onto the large belt below; the opening and closing parts include an opening and closing mechanism and a long hollow frame 11; there are two opening and closing mechanisms, which are symmetrically arranged on both sides of the outer wall of the short vertical plate 4; the two opening and closing mechanisms cooperate to drive the long hollow frame 11 to move vertically, thereby driving the protruding shaft to move in an arc shape, and finally driving the combination of the flap and the weighing plate to flip over.

[0024] The opening and closing mechanism includes a servo motor 12, a lead screw and a lead screw nut 13; the servo motor 12 is arranged at the top of the short vertical plate 4, a support plate is arranged at the bottom of the short vertical plate 4, and the top of the lead screw is connected to the output shaft of the servo motor 12, and the other end of the lead screw is connected to the support plate axis; the lead screw nut 13 is arranged on the lead screw; the two ends of the long hollow frame 11 in the length direction are respectively connected to the two lead screw nuts 13; the two protruding shafts 6 on the same side of the first weighing mechanism and the second weighing mechanism both pass through the inner strip-shaped hole of the same long hollow frame 11; the servo motor 12 can drive the lead screw to rotate, and then drive the lead screw nut to move vertically, and the lead screw nut drives the long hollow frame 11 moves vertically. Since the protruding shaft is arranged in the long hollow frame 11, when the long hollow frame 11 moves vertically, it gives the protruding shaft a vertical force, so that the protruding shaft can move along the trajectory of the arc hole; the signal input end of the servo motor 12 is connected to the signal output end of the CPU; a second inclined baffle 16 is arranged at the top of the outer wall of the short vertical plate 4, and the second inclined baffle 16 is located directly above the servo motor 12, and the height of the end of the second inclined baffle 16 connected to the short vertical plate 4 is higher than the height of the end of the second inclined baffle 16 away from the short vertical plate 4; the second inclined baffle 16 is used to provide protection for the servo motor to prevent materials from falling onto the servo motor.

[0025] The cleaning part includes a second V-shaped baffle 14, an air pipe 15 and a nozzle; the second V-shaped baffle 14 is arranged between the two short vertical plates 4, and its vertical height is lower than the bottom end height of the side long plate 3; the tip of the second V-shaped baffle 14 is vertically upward; the second V-shaped baffle 14 is located between the two arc-shaped holes on the short vertical plate 4; the air pipe 15 is located between the two short vertical plates 4, and it is located directly below the second V-shaped baffle 14; nozzles are arranged on the side walls on both sides of the air pipe 15 in the horizontal direction, and the nozzles are connected to the inner cavity of the air pipe 15; the height of the nozzle is lower than the height of the bottom end of the second V-shaped baffle 14; a joint is arranged at the end of the air pipe 15, the joint passes through the side wall of the short vertical plate 4, and the joint is connected to the air pump; the signal input end of the air pump is connected to the signal output end of the CPU; when the combination of the weighing plate and the flap is tilted, the air pump is started to inject airflow into the air pipe 15, and the airflow is sprayed onto the top surface of the weighing plate through the nozzle for spraying and brushing, so as to clean the residual materials thereon.

[0026] The number of the displacement parts is two, and they are symmetrically arranged on the ground on both sides of the large belt 1; the displacement part includes a support plate 17, a vertical support plate 18, a wheel 19, a motor 20 and a magnetic block; two vertical support plates 18 are arranged at the bottom end of the support plate 17, and the support plate 17 is connected to the side long plate 3 through a bracket; tracks are arranged on the ground on both sides of the large belt 1, and the center line of the track is parallel to the center line of the large belt 1; wheels 19 and motors 20 are arranged at the bottom end of the vertical support plates 18, the output shaft of the motor 20 is connected to the center of the wheel 19, and the wheel 19 is set on the track; the support plate 17 is close to the large belt A magnetic block is arranged on the end surface of the belt 1; a magnetic induction switch 21 is arranged at the corresponding position of the large belt 1 frame directly below each electronic belt scale 2, and the signal output end of the magnetic induction switch 21 is connected to the signal input end of the CPU; the magnetic block and the magnetic induction switch 21 are at the same vertical height; a display screen is arranged on the outer wall of the support plate 17, and the signal input end of the display screen is connected to the signal output end of the CPU; the motor 20 drives the wheel 19 to rotate, thereby driving the device to move forward at the speed of the large belt; the cooperation between the magnetic block and the magnetic induction switch is used to determine which electronic belt scale the device moves under.

[0027] The model of the CPU module in the present invention is 87C196KC.

[0028] The present invention comprises the following steps: In the initial state, the wheel 19 is located at the very end of the track; the long hollow frame 11 is located at the top of the arc hole of the short vertical plate 4, and the position of the protruding shaft 6 is consistent with the position of the long hollow frame 11; the flap 5 and the weighing plate 7 are in a horizontal state; Step 1: When it is necessary to calibrate each electronic belt scale 2 above the large belt 1, start the device, the motor 20 drives the wheel 19 to rotate, and then drives the device to move forward at the same speed as the large belt 1, passing under each electronic belt scale 2 in turn until the end of the track; Step 2: A plurality of magnetic induction switches 21 are arranged on the frame of the large belt 1, and there is an electronic belt scale 2 directly above each magnetic induction switch 21; the device moves forward on the track, and the magnetic block triggers the magnetic induction switch 21 corresponding to the position below the first electromagnetic belt scale, which means that the device has reached the position directly below the first electronic belt scale 2, and the weight data detected next is the data of the first electronic belt scale 2; the device continues to move forward until it completely passes below the discharge port of the first electronic belt scale 2; in the process of the device moving forward and passing the first electronic belt scale 2, the material on the electronic belt scale 2 falls on the weighing plate 7, and when the data of the weighing device no longer changes, it means that the device has completely passed the first electronic belt scale 2; then the electric cylinder is started to push the side push plate 10, and the material pressed on the side push plate 10 is pushed away from the side push plate 10, and then the electric cylinder is reset, and the side push plate 10 is re-fitted and pressed against the side wall of the first V-shaped baffle 9; Step 3: The weighing device calculates the weight of the material received by the first electronic belt scale 2 when the weighing plate 7 passes at the speed of the large belt 1, and the weight data of the material discharged by the first electronic belt scale 2 is recorded on the display screen; Step 4: After recording the weight, start the servo motor 12 to drive the screw nut 13 downward, and the screw nut 13 drives the long hollow frame 11 downward synchronously. When the long hollow frame 11 moves downward, it drives the protruding shaft 6 to move downward along the arc hole, which drives the flipping of the combination of the flap 5 and the weighing plate 7, and unloads the material carried thereon to the large belt 1 directly below; Step 5: When the protruding shaft 6 moves to the bottom of the arc hole, the two bearing plates tilt downward; start the air pump, inject air into the air pipe 15, and the air flow is sprayed onto the upper surface of the bearing plate through the nozzle to purge the residual or adhered materials on the weighing plate 7. After a certain period of purge, turn off the air pump, and control the servo motor 12 to reverse and drive the screw nut 13 upward, drive the protruding shaft 6 upward, and then drive the flap 5 and the weighing plate 7 combination to reset to a horizontal state; Step 6: The device continues to move forward until the magnetic block triggers the signal of the magnetic induction switch 21 under the second electronic belt scale 2, and then repeats the above actions until the device moves to the end, completes the detection of all electronic belt scales 2 and records the data on the display screen; Step seven: After the device moves to the end, keep the screw nut 13 at the bottom. At this time, the flap 5 and the load-bearing plate assembly are in a tilted state, and the motor 20 reverses to drive the device to reset and move back to the initial position. During the return process, due to the tilt of the flap 5, the material on the electronic belt scale 2 naturally passes through the load-bearing plate and falls onto the large belt 1 until the device moves to the initial position; the staff compares the data on the display screen with the data of the electronic belt scale 2 body, and then finds out the error of each electronic belt scale 2.

Claims

1. A calibration device for an electronic belt scale for sintering batching, characterized in that: It comprises a displacement part, a square frame, an opening and closing part, a cleaning part and a weighing part; the displacement part is arranged on the ground at both sides of the large belt (1); the square frame is arranged on the displacement part; the opening and closing part, the cleaning part and the weighing part are all arranged on the square frame; the opening and closing part is in contact with the weighing part.

2. The calibration device for the electronic belt scale for sintering batching according to claim 1 is characterized in that: The square frame comprises a side long board (3), a short vertical board (4) and a material distribution mechanism; the number of the side long board (3) and the short vertical board (4) are both two, and the two side long boards (3) are vertically connected at the head and tail to form a frame structure, the two side long boards (3) are opposite to each other, and the two short vertical boards (4) are opposite to each other; the top end surface of the side long board (3) is flush with the top end surface of the short vertical board (4), and the vertical height of the bottom end surface of the short vertical board (4) is lower than the vertical height of the bottom end surface of the side long board (3); the material distribution mechanism is located between the end surfaces of the two short vertical boards (4) that are close to each other.

3. The calibration device for the electronic belt scale for sintering batching according to claim 2 is characterized in that: The weighing part comprises a first weighing mechanism and a second weighing mechanism; the first weighing mechanism and the second weighing mechanism have the same structure, the first weighing mechanism and the second weighing mechanism are both arranged between two short vertical plates (4), and the positions of the first weighing mechanism and the second weighing mechanism are symmetrical about the connecting line of the center points of the two short vertical plates (4).

4. The calibration device for the electronic belt scale for sintering batching according to claim 3 is characterized in that: The first weighing mechanism comprises a flap (5), a rotating shaft, a protruding shaft (6), a weighing plate (7) and a weighing device; the rotating shaft is axially connected between the end surfaces of the two short vertical plates (4) that are close to each other, and the rotating shaft is located at the end of the short vertical plate (4); the height of the rotating shaft is higher than the height of the bottom end of the side long plate (3); a first inclined baffle (8) is provided on the inner wall of the side long plate (3), and the first inclined baffle (8) is located directly above the rotating shaft, and the end of the first inclined baffle (8) in contact with the side long plate (3) is higher than the end of the first inclined baffle (8) away from the side long plate (3); the long side of the flap (5) is connected to the rotating shaft, and the length direction of the flap (5) is parallel to the axis center line direction of the rotating shaft; the axis center line of the rotating shaft is parallel to the length direction of the side long plate (3); the flap (5) is The two side walls of the long plate (3) in the length direction are in contact with the two short vertical plates (4) respectively; the short vertical plate (4) is provided with an arc hole, and the axis of the arc hole coincides with the axis of the rotating shaft; the end surface of the flap (5) in contact with the short vertical plate (4) is provided with a protruding shaft (6), and the protruding shaft (6) passes through the arc hole on the short vertical plate (4); the top end surface of the flap (5) is provided with a guide hole and a weighing device; the bottom end surface of the weighing plate (7) is provided with a guide rod, and the guide rod is inserted into the guide hole on the top end surface of the flap (5); the bottom end surface of the weighing plate (7) contacts the weighing device on the top end surface of the flap (5); the length and width of the weighing plate (7) are consistent with the length of the flap (5); the signal output end of the weighing device is connected to the signal input end of the CPU.

5. The calibration device for the electronic belt scale for sintering batching according to claim 4 is characterized in that: The material distribution mechanism comprises a first V-shaped baffle plate (9) and a side push member; the first V-shaped baffle plate (9) is arranged between two short vertical plates (4), and the first V-shaped baffle plate (9) is located in the middle of the short vertical plates (4); the tip of the first V-shaped baffle plate (9) is vertically upward; the bottom end surface of the first V-shaped baffle plate (9) does not contact the top end surface of the weighing plate (7); the number of the side push members is two, and they are symmetrically arranged on both sides of the first V-shaped baffle plate (9) along the length direction of the short vertical plates (4).

6. The calibration device for the electronic belt scale for sintering batching according to claim 5, characterized in that: The side thrust member comprises a side thrust plate (10) and an electric cylinder; the electric cylinder is arranged on the inner wall of the first V-shaped baffle plate (9), and the axis of its piston rod is parallel to the length direction line of the short vertical plate (4); a hole is arranged on the side wall of the first V-shaped baffle plate (9), and the electric cylinder piston rod passes through the hole on the side wall of the first V-shaped baffle plate (9); the end of the electric cylinder piston rod is connected to the side thrust plate (10), and the end surface of the side thrust plate (10) close to the first V-shaped baffle plate (9) contacts and presses on the side wall of the first V-shaped baffle plate (9); the signal input end of the electric cylinder is connected to the signal output end of the CPU.

7. The calibration device for the electronic belt scale for sintering batching according to claim 6, characterized in that: The number of the opening and closing parts is two, and they are respectively arranged on the outer walls of the two short vertical plates (4); the opening and closing parts include an opening and closing mechanism and a long hollow frame (11); the number of the opening and closing mechanisms is two, and they are symmetrically arranged on both sides of the outer wall of the short vertical plate (4); the opening and closing mechanism includes a servo motor (12), a lead screw and a lead screw nut (13); the servo motor (12) is arranged at the top end of the short vertical plate (4), a support plate is arranged at the bottom end of the short vertical plate (4), and the top end of the lead screw is connected to the output shaft of the servo motor (12), and the other end of the lead screw is axially connected to the support plate; the lead screw nut (13) is arranged on the lead screw; the long The two ends of the hollow strip frame (11) in the length direction are respectively connected to two lead screw nuts (13); the two protruding shafts (6) on the same side of the first weighing mechanism and the second weighing mechanism both pass through the inner strip hole of the same hollow strip frame (11); the signal input end of the servo motor (12) is connected to the signal output end of the CPU; a second inclined baffle (16) is provided at the top end of the outer wall of the short vertical plate (4), and the second inclined baffle (16) is located directly above the servo motor (12), and the height of one end of the second inclined baffle (16) connected to the short vertical plate (4) is higher than the height of one end of the second inclined baffle (16) away from the short vertical plate (4).

8. The calibration device for the electronic belt scale for sintering batching according to claim 7, characterized in that: The cleaning part comprises a second V-shaped baffle (14), an air pipe (15) and a nozzle; the second V-shaped baffle (14) is arranged between the two short vertical plates (4), and its vertical height is lower than the bottom end height of the side long plate (3); the tip of the second V-shaped baffle (14) is vertically upward; the second V-shaped baffle (14) is located between the two arc-shaped holes on the short vertical plate (4); the air pipe (15) is located between the two short vertical plates (4), and is located directly below the second V-shaped baffle (14); nozzles are arranged on the side walls of both sides of the air pipe (15) in the horizontal direction, and the nozzles are connected to the inner cavity of the air pipe (15); the height of the nozzle is lower than the height of the bottom end of the second V-shaped baffle (14); a joint is arranged at the end of the air pipe (15), the joint passes through the side wall of the short vertical plate (4), and the joint is connected to the air pump; the signal input end of the air pump is connected to the signal output end of the CPU.

9. The calibration device for the electronic belt scale for sintering batching according to claim 8, characterized in that: The number of the displacement parts is two, and they are symmetrically arranged on the ground on both sides of the large belt (1); the displacement part comprises a support plate (17), a vertical support plate (18), a wheel (19), a motor (20) and a magnetic block; two vertical support plates (18) are arranged at the bottom end of the support plate (17), and the support plate (17) is connected to the side long plate (3) through a bracket; tracks are arranged on the ground on both sides of the large belt (1), and the center line of the track is parallel to the center line of the large belt (1); wheels (19) and a motor (20) are arranged at the bottom end of the vertical support plate (18), and the motor (20) ) output shaft is connected to the center of the wheel (19), and the wheel (19) is mounted on the track; a magnetic block is arranged on the end surface of the support plate (17) close to the large belt (1); a magnetic induction switch (21) is arranged at a corresponding position of the large belt (1) frame directly below each electronic belt scale (2), and the signal output end of the magnetic induction switch (21) is connected to the signal input end of the CPU; the magnetic block and the magnetic induction switch (21) are at the same vertical height; a display screen is arranged on the outer wall of the support plate (17), and the signal input end of the display screen is connected to the signal output end of the CPU.

10. A calibration method for an electronic belt scale for sintering batching according to any one of claims 1 to 9, characterized in that: The steps include: In the initial state, the wheel (19) is located at the very end of the track; the long hollow frame (11) is located at the top end of the arc hole of the short vertical plate (4), and the position of the protruding shaft (6) is consistent with the position of the long hollow frame (11); the flap (5) and the weighing plate (7) are in a horizontal plane state; Step 1: When it is necessary to calibrate each electronic belt scale (2) above the large belt (1), start the device, the motor (20) drives the wheel (19) to rotate, and then drives the device to move forward at the same speed as the large belt (1), passing under each electronic belt scale (2) in turn until the end of the track; Step 2: A plurality of magnetic induction switches (21) are arranged on the frame of the large belt (1), and there is an electronic belt scale (2) directly above each magnetic induction switch (21); the device moves forward on the track, and the magnetic block triggers the magnetic induction switch (21) corresponding to the position below the first electromagnetic belt scale, which indicates that the device has reached the position directly below the first electronic belt scale (2), and the weight data detected next is the data of the first electronic belt scale (2); the device continues to move forward until it completely passes below the discharge port of the first electronic belt scale (2); in the process of the device moving forward and passing the first electronic belt scale (2), the material on the electronic belt scale (2) falls on the weighing plate (7), and when the data on the weighing device no longer changes, it indicates that the device has completely passed the first electronic belt scale (2); then the electric cylinder is started to push the side push plate (10), so that the material pressed on the side push plate (10) is pushed away from the side push plate (10), and then the electric cylinder is reset, and the side push plate (10) is again pressed against the side wall of the first V-shaped baffle (9); Step 3: The weighing device calculates the weight of the material received by the first electronic belt scale (2) when the weighing plate (7) passes at the speed of the large belt (1), and the weight data of the material discharged by the first electronic belt scale (2) is recorded on the display screen; Step 4: After the weight is recorded, the servo motor (12) is started to drive the lead screw nut (13) downward. When the lead screw nut (13) moves downward, it drives the long hollow frame (11) to move downward synchronously. When the long hollow frame (11) moves downward, it drives the protruding shaft (6) to move downward along the arc hole, which drives the combination of the flap (5) and the weighing plate (7) to flip, and the material carried thereon is discharged to the large belt (1) directly below; Step 5: When the protruding shaft (6) moves to the bottom of the arc hole, the two bearing plates tilt downward; start the air pump to inject air into the air pipe (15), and the air is sprayed onto the upper surface of the bearing plate through the nozzle to purge the residual or adhered materials on the weighing plate (7). After a certain period of time, turn off the air pump, and control the servo motor (12) to reverse and drive the screw nut (13) upward, drive the protruding shaft (6) upward, and then drive the flap (5) and the weighing plate (7) assembly to reset to a horizontal state; Step 6: The device continues to move forward until the magnetic block triggers the signal of the magnetic induction switch (21) under the second electronic belt scale (2), and then repeats the above actions until the device moves to the end, all electronic belt scales (2) are detected and the data is recorded on the display screen; Step 7: After the device moves to the end, the lead screw nut (13) is kept at the bottom. At this time, the flap (5) and the load-bearing plate assembly are in a tilted state, and the motor (20) is reversed to drive the device to reset and move back to the initial position. During the return process, due to the tilt of the flap (5), the material on the electronic belt scale (2) naturally passes through the load-bearing plate and falls onto the large belt (1) until the device moves to the initial position; the staff compares the data on the display screen with the data of the electronic belt scale (2) body, and then obtains the error of each electronic belt scale (2).

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