Material control device of sintering circular cooler

Abstract

The invention relates to a material control device for a sintering circular cooler, which is characterized in that a material receiving weighing sensor is arranged in a material receiving hopper, a material unloading weighing sensor is arranged in a material unloading hopper, a material leveling device is arranged at the material receiving position of the circular cooler, and a temperature detection device and a cooling water spraying device are arranged at the top of the material surface of a finished product adhesive tape machine; the material receiving hopper, the material receiving weighing sensor, the circular cooler, the material flattening device, the cooling fan, the discharging hopper, the discharging weighing sensor, the plate type ore feeder, the finished product sealing-tape machine, the temperature detection device and the cooling water spraying device are in interlocking control, and the material receiving hopper, the material receiving weighing sensor, the circular cooler, the material flattening device, the cooling fan, the discharging hopper, the discharging weighing sensor, the plate type ore feeder, the finished product sealing-tape machine, the temperature detection device and the cooling water spraying device are in interlocking control. The material cooling control degree is high, the material cooling control efficiency is high, the material cooling control is accurate, and the material cooling effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of sintering ring cooling control, and in particular to a sintering ring cooling machine material control device. Background Art

[0002] In sintering production, the high-temperature materials generated at the tail of the sintering machine enter the ring cooler through the chute and the ring cooler receiving hopper for blast cooling. When the material temperature is lower than 120°C, it is discharged from the discharge hopper at the tail of the ring cooler to the plate feeder and then sent to the finished product belt conveyor. In order to ensure the cooling effect, the ring cooler material must be controlled as follows: the discharge of the ring cooler receiving hopper must be stable, the material on the ring cooler must be flat, and the discharge of the ring cooler discharge hopper must be stable.

[0003] The existing cooling method of the ring cooler uses a variable frequency speed regulating motor configured with the ring cooler and the plate feeder. The operator adjusts the speed of the ring cooler and the plate feeder according to production experience. This control method has the following disadvantages: 1) The unloading of the ring cooler hopper is unstable: there is a certain time interval when the adjacent trolleys of the sintering machine unload, resulting in intermittent feeding of high-temperature materials in the ring cooler hopper. When the unloading amount of the hopper does not match the operating speed of the ring cooler, it will cause the unloading of the hopper to be unstable, resulting in material interruption or blockage, affecting the stable operation of upstream and downstream equipment; 2) The material distribution of the ring cooler is uneven: due to the unstable unloading of the hopper, the material on the ring cooler trolley is uneven and the material layer thickness is inconsistent. When the cooling air passes through the material layer from the bottom of the ring cooler trolley, the cooling air segregation causes uneven cooling of the material, that is: the resistance at the thin material layer of the trolley is small, and the cooling air volume passing through is large, while the resistance at the thick material layer is large, and the cooling air volume passing through is small, resulting in overcooling at the thin material layer, the temperature is far below 120°C, and undercooling at the thick material layer, the temperature is higher than 120°C, which cannot meet production requirements; 3) Unstable unloading from the unloading hopper: There is a certain time interval when the adjacent trolleys of the ring cooler unload, resulting in intermittent unloading of the low-temperature material in the unloading hopper of the ring cooler. When the running speed of the ring cooler does not match the speed of the plate feeder, it will cause unstable unloading of the unloading hopper, material breakage or blockage, affecting the stable operation of upstream and downstream equipment, low control accuracy, large regulation workload, low control efficiency, low efficiency of cooling materials by the ring cooler, and poor material cooling effect. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a material control device for a sintering ring cooler, which controls the material feeding speed of a receiving hopper, the unloading speed of a discharging hopper, the material distribution height of a ring cooler and the operating speed of a ring cooler, the air volume of a cooling fan, the operating speed of a plate feeder, a temperature detection device and a cooling water spraying device through interlocking, thereby achieving a high degree of material cooling control, improving material cooling control efficiency, accurate material cooling control and good material cooling effect.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A material control device for a sintering ring cooler comprises a receiving hopper, a receiving weighing sensor, a ring cooler, a leveler, a cooling fan, a discharge hopper, a discharge weighing sensor, a plate feeder, a finished product belt conveyor, a temperature detection device and a cooling water spraying device, wherein the receiving hopper is provided at the bottom of the receiving hopper, the discharging position of the ring cooler is provided, the plate feeder is provided at the bottom of the discharging hopper, the finished product belt conveyor is provided at the outlet of the plate feeder, the receiving weighing sensor is provided inside the receiving hopper, the discharging weighing sensor is provided inside the discharging hopper, the leveler is provided at the receiving position of the ring cooler, the temperature detection device and the cooling water spraying device are provided at the top of the material surface of the finished product belt conveyor, and the receiving hopper, the receiving weighing sensor, the ring cooler, the leveler, the cooling fan, the discharge hopper, the discharge weighing sensor, the plate feeder, the finished product belt conveyor, the temperature detection device and the cooling water spraying device are interlocked and controlled.

[0007] Furthermore, the flat material feeder is provided with a lifting control mechanism.

[0008] Furthermore, the control signal of the interlocking control is connected to the sintering production control system.

[0009] Furthermore, the motors of the ring cooler, cooling fan and plate feeder are all variable frequency speed regulating motors.

[0010] Furthermore, the specific steps of the control method of the sintering ring cooler material control device are as follows:

[0011] S1. Interlocking control between the receiving hopper, receiving weighing sensor, ring cooler, flat material feeder, cooling fan, discharge hopper, discharge weighing sensor, plate feeder and finished product belt conveyor, and the control signal of the interlocking control is connected to the existing production control system;

[0012] S2. According to production conditions, the value of the material receiving weighing sensor on the receiving hopper, the height of the leveler on the ring cooler, and the value of the unloading weighing sensor on the unloading hopper are pre-set in the production control system;

[0013] S3. At the beginning of production, as the high-temperature material enters the receiving hopper, the receiving weighing sensor senses the weight of the material in the receiving hopper, and the unloading weighing sensor detects the weight of the material in the unloading hopper. The weight signal is transmitted to the production control system through interlocking control. According to the material weight signal, the material height of the ring cooler, the speed of the ring cooler, the speed of the plate feeder, and the speed of the cooling fan are adjusted through the interlocking in the production control system;

[0014] S4. The material cooled in the ring cooler is unloaded from the discharge hopper and unloaded to the finished product belt conveyor through the plate feeder;

[0015] S5. A temperature detection device and a cooling water spraying device are set above the finished tape machine, and the length of time for continuous over-temperature of the two materials, i.e., the spraying value and the adjustment value, are pre-set in the production control system;

[0016] S6. When the temperature detection device detects that the continuous over-temperature time of the material on the finished tape machine reaches the spraying value, the interlock control automatically turns on the cooling water spray device for spraying. After detecting that the temperature of the subsequent material is normal, the interlock control of the cooling water spray device is automatically closed; when the temperature detection device detects that the continuous over-temperature time of the material exceeds the spraying value and reaches the adjustment value, the interlock control automatically turns on the cooling water spray device for spraying, and readjusts the speed of the cooling fan in the production control system to increase the cooling air volume to ensure that the temperature of the cooled material is less than 120°C; when the temperature of the subsequent material is detected to be normal, the interlock control of the cooling water spray device is automatically closed;

[0017] S7. If the actual production is adjusted, the amount of material entering the receiving hopper per unit time will change. The above S2-S6 process can be repeated to make the control device reach a new balance and ensure the material cooling effect.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) By adjusting the speed of the ring cooler, the speed of the plate feeder, and the speed of the cooling fan, the weight of the material in the receiving hopper is controlled to be stable within the preset value range of the receiving weighing sensor, ensuring that the material discharge from the receiving hopper is stable, without material breakage or blockage, and the material discharge is continuous and stable, and the discharge amount is accurate.

[0020] 2) The height of the material leveler is controlled by interlocking, the thickness of the material is accurately controlled and the material surface is flat. The speed of the cooling fan is controlled by interlocking to ensure that the cooling air is evenly distributed and not segregated when passing through the material layer from the bottom of the ring cooler trolley. The air volume of the cooling fan is accurately controlled, energy is saved, the material cooling is stable, the material cooling control degree is high, the material cooling control efficiency is high, the material cooling control is accurate, and the material cooling effect is good.

[0021] 3) By adjusting the speed of the annular cooler, the speed of the plate feeder, and the speed of the cooling fan, the weight of the material in the discharge hopper is controlled to be stable within the preset value range of the discharge weighing sensor, ensuring the stability of the discharge of the discharge hopper, without material breakage and blockage, continuous and smooth discharge, and accurate discharge quantity.

[0022] 4) The interlocking control device interlocks and controls the air volume of the cooling fan and the spraying of the cooling water spraying device according to the temperature detected by the temperature detection device, ensuring that the temperature of the material after cooling is less than 120°C, improving the output quality of the finished sintered material, and improving the material cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1The present invention discloses a flow chart of a material control device for a sintering ring cooler.

[0024] In the figure: 1. Receiving hopper; 2. Receiving weighing sensor; 3. Annular cooler; 4. Leveler; 5. Cooling fan; 6. Discharging hopper; 7. Discharging weighing sensor; 8. Plate feeder; 9. Finished product belt conveyor; 10. Temperature detection device; 11. Cooling water spraying device; 12. Material; 13. Exhaust gas; 14. Annular cooler running direction; 15. Cooling air. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0026] like Figure 1 As shown, the working principle of a sintering ring cooler material control device is as follows: all devices of the control device are interlocked, and the control signal is connected to the existing production control system. The value of the receiving weighing sensor 2, the value of the discharging weighing sensor 7, and the height value of the leveler 4 are preset; when the material 12 enters the receiving hopper 1, the speed of the ring cooler 3, the speed of the plate feeder 8, and the speed of the cooling fan 5 are adjusted according to the weight signal transmitted by the receiving weighing sensor 2 and the discharging weighing sensor 7, so that the amount of material in the receiving hopper 1 and the discharging hopper 6 of the ring cooler is stable, the height of the leveler 4 is interlocked to control the height of the ring cooling trolley to be flat and consistent, and the air volume and pressure of the cooling fan 5 are interlocked to ensure that the temperature of the material 12 after cooling is less than 120°C. At the same time, the temperature of the material 12 on the finished product belt conveyor 9 is detected. When it is over-temperature, the cooling water spraying device 11 is opened or the relevant equipment parameters are readjusted according to the temperature detection signal of the temperature detection device 10, so that the control device reaches a new balance and ensures the cooling effect of the material 12.

[0027] like Figure 1 As shown, a sintering ring cooler material control device comprises a receiving hopper 1, a receiving weighing sensor 2, a ring cooler 3, a leveler 4, a cooling fan 5, a discharge hopper 6, a discharge weighing sensor 7, a plate feeder 8, a finished product belt conveyor 9, a temperature detection device 10 and a cooling water spraying device 11, wherein the receiving hopper 1 is provided with a ring cooler 3 at the bottom, the ring cooler 3 is provided with a discharge hopper 6 at the discharge position, the plate feeder 8 is provided with a finished product belt conveyor 9 at the outlet of the plate feeder 8, and the receiving hopper 1 is provided with a plate feeder 8 at the bottom. A receiving weighing sensor 2 is arranged in the material receiving part, a discharging weighing sensor 7 is arranged in the discharging hopper 6, a leveler 4 is arranged at the receiving position of the ring cooler 3, a temperature detecting device 10 and a cooling water spraying device 11 are arranged on the top of the material surface of the finished product belt conveyor 9, and the receiving hopper 1, the receiving weighing sensor 2, the ring cooler 3, the leveler 4, the cooling fan 5, the discharging hopper 6, the discharging weighing sensor 7, the plate feeder 8, the finished product belt conveyor 9, the temperature detecting device 10 and the cooling water spraying device 11 are interlocked and controlled.

[0028] Furthermore, the flat material device 4 is provided with a lifting control mechanism.

[0029] Furthermore, the control signal of the interlocking control is connected to the sintering production control system.

[0030] Furthermore, the motors of the ring cooler 3, the cooling fan 5 and the plate feeder 8 are all variable frequency speed regulating motors.

[0031] Furthermore, the specific steps of the control method of the sintering ring cooler material control device are as follows:

[0032] S1. Interlocking control between receiving hopper 1, receiving weighing sensor 2, ring cooler 3, flat material device 4, cooling fan 5, discharge hopper 6, discharge weighing sensor 7, plate feeder 8 and finished product belt conveyor 9, and the control signal of the interlocking control is connected to the existing production control system;

[0033] S2 according to production conditions, in the production control system pre-set receiving hopper 1 receiving the value of the weighing sensor 2, the height of the ring cooler 3 flat material 4, the discharge hopper 5 discharge weighing sensor 6 value;

[0034] S3. At the beginning of production, as the high-temperature material 12 enters the receiving hopper 1, the receiving weighing sensor 2 senses the weight of the material in the receiving hopper 1, and the unloading weighing sensor 6 detects the weight of the material in the unloading hopper 5. The weight signal is transmitted to the production control system through interlocking control. According to the material weight signal, the production control system interlocks and adjusts the material height of the ring cooler 3, the speed of the ring cooler 3, the speed of the plate feeder 8, and the speed of the cooling fan 5;

[0035] S4. The material 12 cooled in the ring cooler 3 is unloaded from the discharge hopper 5 and unloaded to the finished product belt conveyor 9 through the plate feeder 8;

[0036] S5 finished tape machine 9 above the temperature detection device 10 and the cooling water spraying device 11, and the production control system pre-set two materials 12 continuous over-temperature time length, ie, the spray value and adjustment value;

[0037] S6. When the temperature detection device 10 detects that the material 12 on the finished tape machine 3 has been continuously overheated for a time that reaches the spraying value, the interlock control automatically turns on the cooling water spray device 11 for spraying. After the subsequent material 12 temperature is detected to be normal, the cooling water spray device 11 is automatically closed by the interlock control; when the temperature detection device 10 detects that the material 12 has been continuously overheated for a time that exceeds the spraying value and reaches the adjustment value, the interlock control automatically turns on the cooling water spray device 11 for spraying, and readjusts the speed of the cooling fan 5 in the production control system to increase the cooling air volume to ensure that the temperature of the cooled material 12 is less than 120°C; when the subsequent material 12 temperature is detected to be normal, the cooling water spray device 11 is automatically closed by the interlock control;

[0038] S7. If the actual production is adjusted, the amount of material 12 entering the receiving hopper 1 per unit time will change, and the above-mentioned process of S2-S6 can be repeated to make the control device reach a new balance to ensure the cooling effect of the material 12.

[0039] like Figure 1 As shown, the control effect of a sintering ring cooler material control device is as follows:

[0040] 1) Through interlocking control, the weight of the material 12 in the receiving hopper 1 and the discharge hopper 6 is stabilized within the preset value range of the weighing sensor 2 and the weight sensor 7, ensuring the stability of the material discharge from the receiving hopper 1 and the discharge hopper 6, and ensuring the continuous and stable operation of the material 12 in the running direction 14 of the ring cooler without material breakage or blockage.

[0041] 2) The material 12 on the ring cooler 3 trolley is ensured to have a uniform thickness and a flat surface by presetting the height of the leveler 4. When the cooling air 15 passes through the material layer from the bottom of the ring cooler trolley, the cooling air 15 is evenly distributed without segregation, and the material cooling effect is the same, meeting the production requirements.

[0042] 3) The cooling air 15 provided by the cooling fan 5 has a pressure that can penetrate the material layer, and an air volume that can cool the material temperature to less than 120°C. The cooled air becomes exhaust gas 13 and enters the existing exhaust gas treatment system above the ring cooler. The cooling fan 5 is composed of multiple fans. Under the condition of meeting production requirements, the cooling air volume and pressure of each fan can be adjusted according to the actual working conditions through motor frequency conversion and damper opening changes to achieve the purpose of energy saving.

[0043] 4) When the detection device 10 detects that the continuous over-temperature time of the material 12 reaches the spraying value, the cooling water spraying device 11 is automatically turned on for spraying. After detecting that the temperature of the subsequent material 12 is normal, the cooling water spraying device 11 is automatically turned off to ensure that the temperature of the cooled material 12 is less than 120°C, thereby improving the cooling effect of the material 12 and improving the quality of the finished product.

[0044] 5) When the detection device 10 detects that the material 12 has been continuously over-temperature for a period of time exceeding the spray value and reaching the adjustment value, the cooling water spray device 11 is automatically turned on for spraying, and the speed of the cooling fan 5 is readjusted in the production control system to increase the cooling air volume to ensure that the temperature of the material after cooling is less than 120°C. When it is detected that the temperature of the subsequent material 12 is normal, the cooling water spray device 11 is automatically turned off to ensure that the temperature of the cooled material 12 is less than 120°C, thereby improving the cooling effect of the material 12 and the quality of the finished product.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sintering ring cooler material control device, comprising a receiving hopper, a receiving weighing sensor, a ring cooler, a leveler, a cooling fan, a discharge hopper, a discharge weighing sensor, a plate feeder, a finished product belt conveyor, a temperature detection device and a cooling water spraying device, wherein the receiving hopper is provided with a ring cooler at the bottom, the ring cooler unloading position is provided with a discharge hopper, a plate feeder is provided at the bottom of the discharge hopper, and a finished product belt conveyor is provided at the plate feeder outlet, characterized in that: A receiving weighing sensor is arranged inside the receiving hopper, a discharging weighing sensor is arranged inside the discharging hopper, a leveler is arranged at the receiving position of the ring cooler, a temperature detection device and a cooling water spraying device are arranged on the top of the material surface of the finished product belt conveyor, and the receiving hopper, the receiving weighing sensor, the ring cooler, the leveler, the cooling fan, the discharging hopper, the discharging weighing sensor, the plate feeder, the finished product belt conveyor, the temperature detection device and the cooling water spraying device are interlocked and controlled.

2. A sintering ring cooler material control device according to claim 1, characterized in that: The flat material device is provided with a lifting control mechanism.

3. A sintering ring cooler material control device according to claim 1, characterized in that: The control signal of the interlocking control is connected to the sintering production control system.

4. A sintering ring cooler material control device according to claim 1, characterized in that: The motors of the ring cooler, cooling fan and plate feeder are all variable frequency speed regulating motors.

5. The control method of a sintering ring cooler material control device according to claim 1, characterized in that: The specific steps of the control method of the sintering ring cooler material control device are as follows: S1. Interlocking control between the receiving hopper, receiving weighing sensor, ring cooler, flat material feeder, cooling fan, discharge hopper, discharge weighing sensor, plate feeder and finished product belt conveyor, and the control signal of the interlocking control is connected to the existing production control system; S2. According to production conditions, the value of the material receiving weighing sensor on the receiving hopper, the height of the leveler on the ring cooler, and the value of the unloading weighing sensor on the unloading hopper are pre-set in the production control system; S3. At the beginning of production, as the high-temperature material enters the receiving hopper, the receiving weighing sensor senses the weight of the material in the receiving hopper, and the unloading weighing sensor detects the weight of the material in the unloading hopper. The weight signal is transmitted to the production control system through interlocking control. According to the material weight signal, the material height of the ring cooler, the speed of the ring cooler, the speed of the plate feeder, and the speed of the cooling fan are adjusted through the interlocking in the production control system; S4. The material cooled in the ring cooler is unloaded from the discharge hopper and unloaded to the finished product belt conveyor through the plate feeder; S5. A temperature detection device and a cooling water spraying device are set above the finished tape machine, and the length of time for continuous over-temperature of the two materials, i.e., the spraying value and the adjustment value, are pre-set in the production control system; S6. When the temperature detection device detects that the continuous over-temperature time of the material on the finished product belt conveyor reaches the spraying value, the interlock control automatically turns on the cooling water spray device for spraying. After detecting that the temperature of the subsequent material is normal, the interlock control of the cooling water spray device is automatically closed; when the temperature detection device detects that the continuous over-temperature time of the material exceeds the spraying value and reaches the adjustment value, the interlock control automatically turns on the cooling water spray device for spraying, and readjusts the speed of the cooling fan in the production control system to increase the cooling air volume to ensure that the temperature of the material after cooling is less than 120℃; when the temperature of the subsequent material is detected to be normal, the interlock control of the cooling water spray device is automatically closed; S7. If the actual production is adjusted, the amount of material entering the receiving hopper per unit time will change. The above S2-S6 process can be repeated to make the control device reach a new balance and ensure the material cooling effect.

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