Aluminum oxide ceramic grinding ball firing device

Abstract

The invention provides an alumina ceramic grinding ball firing device which comprises a tunnel kiln and a gate sleeve, a heating assembly is installed on the tunnel kiln, the heating assembly comprises a combustor and a flame port, a lifting assembly is installed on the gate sleeve and comprises a gate sleeve and a first motor, a feeding assembly and a discharging assembly are installed on the gate sleeve, and the first motor is connected with the feeding assembly. The feeding assembly comprises a gate plate I and a gate plate II, the discharging assembly comprises a gate plate III and a gate plate IV, and a storage assembly is mounted on the inner side of the tunnel kiln. The temperature of the moved-out grinding balls is prevented from being too high, heat is fully recycled, energy waste is reduced, the situation that the sintering temperature fluctuates due to changes of air pressure and air flow in the feeding and discharging process is avoided, the sintering machining quality of the grinding balls is guaranteed, and the device is suitable for sintering machining of the aluminum melting ceramic grinding balls.

Description

Technical Field

[0001] The present invention relates to the technical field of alumina ceramic firing equipment, and particularly to a firing device for alumina ceramic grinding balls. Background Art

[0002] When carrying out the production and processing of alumina ceramic grinding balls, alumina ceramic firing equipment is often required. The invention patent with the patent application number CN202020493253.8 discloses a firing device for alumina ceramic grinding balls. By setting a motor to drive the ball-making plate to vibrate up and down, a large amount of alumina raw materials can be made into balls at one time, improving the ball-making efficiency and being conducive to large-scale production. By setting multiple groups of rollers inside the pusher kiln, a large number of alumina ceramic grinding balls can be fired at one time, thereby improving the firing efficiency of alumina ceramic grinding balls. The invention patent with the patent application number CN201810672110.0 discloses a process for preparing alumina ceramic products by low-temperature sintering. It changes the traditional process of reducing the firing temperature by improving the point contact of powder, realizes the combination of the physical surface energy of β-alumina powder and the chemical energy at the molecular level of the flux, so that the β-alumina powder obtains a large surface energy, and thus can greatly reduce the energy required for firing the products and lower the firing temperature. The experimental results show that compared with the traditional process, the primary firing temperature of the alumina ceramic product preparation process provided by the present invention can be reduced by 100-150°C, and the secondary firing temperature can be reduced by 200-250°C. According to the disclosed technical solution, when the existing alumina ceramic firing equipment is in use, on the one hand, the alumina ceramic grinding balls still have a relatively high temperature when discharged, which is not only unfavorable for ensuring the safety of workers but also causes waste of energy. On the other hand, during the feeding and discharging operations of alumina ceramic grinding balls, a large amount of heat is often lost, increasing energy consumption, and the hot air flowing out is likely to cause harm to nearby personnel and items. On the further hand, when discharging the flue gas outward, the change of flue gas discharge is easily caused by the feeding and discharging operations, thereby causing fluctuations in the firing temperature inside the furnace, which is not conducive to ensuring the processing quality of alumina ceramic grinding balls. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a firing device for alumina ceramic grinding balls to solve the problems raised in the above background art. The structure of the present invention is novel and has diverse functions, and is suitable for the firing and processing of aluminum oxide ceramic grinding balls.

[0004] To achieve the above object, the present invention is realized through the following technical solutions: An alumina ceramic grinding ball firing device includes a tunnel kiln and a gate sleeve. A heating component is installed on the tunnel kiln. The heating component includes a burner and a flame port. A lifting component is installed on the gate sleeve. The lifting component includes a lead screw and a first motor. A feeding component and a discharging component are installed on the gate sleeve. The feeding component includes a first gate plate and a second gate plate. The discharging component includes a third gate plate and a fourth gate plate. A storage component is installed inside the tunnel kiln. The storage component includes a support plate and a tray. A pushing component is installed on the tunnel kiln. The pushing component includes a second motor and a first gear. A pushing-out component is installed on the tunnel kiln. The pushing-out component includes a third motor and a fourth motor. A transmission component is installed on the third motor. The transmission component includes a connecting sleeve and a connecting block.

[0005] Further, the gate sleeve is installed on the top of the tunnel kiln through bolts. The gate sleeves are distributed on the tops of both ends of the tunnel kiln. The burner is installed on the top of the tunnel kiln through bolts. The flame port is installed at the bottom of the burner. The flame port extends to the inside of the tunnel kiln. The flame ports are symmetrically distributed on both sides of the tunnel kiln.

[0006] Further, the first motor is installed on the top of the gate sleeve through bolts. The top end of the lead screw is key-connected to the output shaft of the first motor. The tops of the first gate plate, the second gate plate, the third gate plate, and the fourth gate plate are all stuck inside the gate sleeve. The bottoms of the first gate plate, the second gate plate, the third gate plate, and the fourth gate plate are all sealed on the inner wall of the tunnel kiln. The first gate plate and the second gate plate are installed at one end of the tunnel kiln. The third gate plate and the fourth gate plate are installed at the other end of the tunnel kiln. The first gate plate, the second gate plate, the third gate plate, and the fourth gate plate are all sleeved on the outer side of the lead screw through threads.

[0007] Further, guide grooves are opened on the inner walls of both sides of the tunnel kiln. Both sides of the support plate are stuck inside the guide grooves. The trays are stacked on the top of the support plate through support rods. Tooth patterns are opened on both sides of the support plate. The third motor is installed at the bottoms of both ends of the tunnel kiln through bolts. The second motor is installed at the bottom of the tunnel kiln through bolts. The gear is installed inside the guide groove through a bearing. The gear meshes with the tooth pattern. The bottom of the gear passes through the bottom of the tunnel kiln and is key-connected to the output shaft of the second motor.

[0008] Further, the fourth motor is installed at the bottom of the tunnel kiln through bolts. The bottom of the connecting sleeve is key-connected to the output shafts of the third and fourth motors respectively. The bottom of the connecting block is stuck inside the connecting sleeve. A second gear is welded to the top of the connecting block. The second gear meshes with the tooth pattern. A curved surface is integrally formed on the top of the second gear. An activity groove is formed on one side of the connecting sleeve. An activity block is welded to one side of the connecting block. One side of the activity block is stuck on the inner wall of the activity groove. The other side of the activity block is connected to the inner wall of the other side of the activity groove through a spring. A first button is welded to the inner wall of the other side of the activity groove.

[0009] Further, the bottom of the connecting block is connected to the inner wall of the bottom of the connecting sleeve through a spring. A second button is welded to the inner wall of the bottom of the connecting sleeve. The second button is connected to the third and fourth motors through wires. The first button is connected to the first motor through wires. The third and fourth motors are symmetrically distributed on both sides of the tunnel kiln.

[0010] Further, through openings are formed at the top of the fourth gate plate, the bottom of the third gate plate and the bottom of the second gate plate. An air duct is formed at the top of the second gate plate. The inner side of one end of the tunnel kiln is connected to the inner side of the gate sleeve through the air duct. A chimney is installed at the top of the tunnel kiln through bolts. A channel is welded to one side of the chimney. The gate sleeve is connected to the chimney through the channel. The bottom of the chimney is connected to the inner side of the tunnel kiln. An electric valve is installed at the bottom of the chimney.

[0011] Further, a sleeve is welded to the top of the tunnel kiln. The top and bottom of the sleeve are respectively connected to the top and the inner side of the tunnel kiln. A piston is stuck inside the sleeve. A heat-insulating slider is welded to the bottom of the piston. The top of the piston is connected to the inner wall of the top of the sleeve through a spring.

[0012] Further, a third button is welded to the inner wall of the sleeve. The third button is respectively installed at the top and the bottom of the piston.

[0013] Further, a controller is externally connected to the tunnel kiln. The controller is connected to the burner, the first motor, the second motor, the third motor, the fourth motor, the first button, the second button and the third button through wires. The third button is connected to the electric valve through wires.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. When the alumina ceramic grinding ball firing device is in use, place the alumina ceramic grinding ball blank on the tray, and clamp the two sides of the support plate inside the guide grooves in the tunnel kiln. The first motor drives the first shutter upward through the lead screw, then pushes the support plate to the inside of the tunnel kiln, and then closes the first shutter. The curved surface on the second gear at the top of the third motor is squeezed by the top of the tooth pattern on the support plate, causing the connecting block to squeeze the second button downward, thereby turning on the third motor. The third motor drives the connecting sleeve, and the spring in the movable groove pushes the movable block, causing the connecting block to drive the second gear to rotate. The second gear drives the support plate to move inside the guide groove through meshing with the tooth pattern. The support plate drives the tray to move to the right inside the tunnel kiln, and the support plate squeezes the second shutter, causing the movable block to squeeze the first button. The first button turns on the first motor on the second shutter, and the first motor raises the second shutter through the lead screw, further moving the support plate and the tray to the right inside the tunnel kiln to the right of the second shutter, and then lowering the second shutter. The support plate is continuously pushed to the right by the second gear on the fourth motor until the support plate moves to the first gear. The second motor drives the support plate to move slowly inside the tunnel kiln through the first gear. The burner sprays the high-temperature flame generated by burning gas from both sides of the tray inside the tunnel kiln through the flame outlet to perform the firing operation on the blank on the tray. The fired grinding balls are slowly pushed to near the third shutter until the tooth pattern on the support plate is stuck on the second gear on the fourth motor. The fourth motor drives the second gear through the connecting sleeve and the connecting block until the support plate squeezes the third shutter, and moves the support plate and the tray between the third shutter and the fourth shutter. The chimney generates suction on the gate sleeve through the channel, causing air to enter the left side of the fourth shutter through the vent. After cooling down the grinding balls, the heat-absorbing air enters the inside of the tunnel kiln from the bottom of the third shutter through the vent, and then cools down the grinding balls on the right side of the burner one by one, and drives the heat to the unfired blank to perform sufficient preheating and baking work on the blank, then passes through the vent at the bottom of the second shutter and enters the left side of the second shutter to fully dry the blank between the first shutter and the second shutter. The flue gas and air enter the inside of the gate sleeve through the air duct, and then are discharged outward through the channel and the chimney. By using the rotational speed difference between the second motor and the fourth motor, sufficient space is reserved inside the two ends of the tunnel kiln for the tray, and the second shutter and the third shutter are respectively used to reduce the interference of heat radiation for sufficient drying and cooling work. It can fully preheat and dry the blank before firing, and fully cool down the grinding balls and recover the waste heat after the firing work is completed, avoiding the danger caused by the excessive temperature of the removed grinding balls, and fully recovering the heat of the discharged exhaust gas to reduce energy waste. The third motor and the fourth motor will only be powered on when the support plate moves to the second gear and the corresponding shutter is opened, reducing power consumption.

[0016] 2. When the alumina ceramic grinding ball firing device is in use and during the feeding and discharging operations, only one of the first shutter and the second shutter, and the third shutter and the fourth shutter will be opened. Thus, the other one can be effectively used to block the hot air, preventing the hot air from flowing out during the feeding and discharging processes. This not only reduces heat waste but also ensures the safety of personnel and property at both ends of the tunnel kiln.

[0017] 3. When the second shutter rises upward, the air duct is gradually blocked as it moves upward. As a result, the air pressure inside the tunnel kiln increases, causing the heat insulation slider to be pushed upward by the air pressure and the piston to squeeze the third button upward. The third button opens the electric valve, and according to the change in the air pressure inside the tunnel kiln, the piston squeezes the third button downward or upward. Then, the opening degree at the bottom of the chimney is adjusted larger or smaller through the electric valve to regulate the exhaust speed of the chimney, ensuring the stability of the air pressure and air flow in the tunnel kiln, and thus ensuring the stability of the firing temperature of the grinding balls. This avoids fluctuations in the firing temperature caused by changes in air pressure and air flow during the feeding and discharging processes in the tunnel kiln, and guarantees the quality of the firing process of the grinding balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an alumina ceramic grinding ball firing device of the present invention;

[0019] Figure 2 is a cross-sectional view of an alumina ceramic grinding ball firing device of the present invention;

[0020] Figure 3 is a schematic structural diagram of one end of the tunnel kiln of an alumina ceramic grinding ball firing device of the present invention;

[0021] Figure 4 is a schematic structural diagram of the support plate of an alumina ceramic grinding ball firing device of the present invention;

[0022] Figure 5 is a schematic structural diagram of the fourth shutter of an alumina ceramic grinding ball firing device of the present invention;

[0023] Figure 6 is a schematic structural diagram of the third shutter of an alumina ceramic grinding ball firing device of the present invention;

[0024] Figure 7 is a schematic structural diagram of the second gear of an alumina ceramic grinding ball firing device of the present invention;

[0025] Figure 8 is a schematic structural diagram of the connecting sleeve of an alumina ceramic grinding ball firing device of the present invention;

[0026] Figure 9Schematic diagram of the second gate plate of a firing device for alumina ceramic grinding balls according to the present invention;

[0027] Figure 10 Schematic diagram of the chimney of a firing device for alumina ceramic grinding balls according to the present invention;

[0028] Figure 11 Schematic diagram of the sleeve of a firing device for alumina ceramic grinding balls according to the present invention;

[0029] In the figure: 1, tunnel kiln; 2, burner; 3, flame port; 4, gate sleeve; 5, first gate plate; 6, second gate plate; 7, third gate plate; 8, fourth gate plate; 9, first motor; 10, lead screw; 11, guide groove; 12, support plate; 13, tray; 14, second motor; 15, third motor; 16, fourth motor; 17, first gear; 18, connecting sleeve; 19, connecting block; 20, second gear; 21, curved surface; 22, spring; 23, first button; 24, second button; 25, through port; 26, air duct; 27, chimney; 28, channel; 29, electric valve; 30, sleeve; 31, piston; 32, third button. Detailed implementation manners

[0030] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0031] Please refer to Figures 1 to 11, the present invention provides a technical solution: an alumina ceramic grinding ball firing device, including a tunnel kiln 1 and a gate sleeve 4. A heating component is installed on the tunnel kiln 1, and the heating component includes a burner 2 and a flame port 3. A lifting component is installed on the gate sleeve 4, and the lifting component includes a lead screw 10 and a motor one 9. A feeding component and a discharging component are installed on the gate sleeve 4. The feeding component includes a gate plate one 5 and a gate plate two 6, and the discharging component includes a gate plate three 7 and a gate plate four 8. A storage component is installed inside the tunnel kiln 1, and the storage component includes a support plate 12 and a tray 13. A pushing component is installed on the tunnel kiln 1, and the pushing component includes a motor two 14 and a gear one 17. A pushing-out component is installed on the tunnel kiln 1, and the pushing-out component includes a motor three 15 and a motor four 16. A transmission component is installed on the motor three 15, and the transmission component includes a connecting sleeve 18 and a connecting block 19. The gate sleeve 4 is installed on the top of the tunnel kiln 1 through bolts, and the gate sleeve 4 is distributed on the tops of both ends of the tunnel kiln 1. The burner 2 is installed on the top of the tunnel kiln 1 through bolts, and the flame port 3 is installed at the bottom of the burner 2. The flame port 3 extends to the inside of the tunnel kiln 1, and the flame ports 3 are symmetrically distributed on both sides of the tunnel kiln 1. The motor one 9 is installed on the top of the gate sleeve 4 through bolts, and the top end of the lead screw 10 is key-connected to the output shaft of the motor one 9. The tops of the gate plate one 5, the gate plate two 6, the gate plate three 7 and the gate plate four 8 are all stuck inside the gate sleeve 4, and the bottoms of the gate plate one 5, the gate plate two 6, the gate plate three 7 and the gate plate four 8 are all sealed on the inner wall of the tunnel kiln 1. The gate plate one 5 and the gate plate two 6 are installed at one end of the tunnel kiln 1, and the gate plate three 7 and the gate plate four 8 are installed at the other end of the tunnel kiln 1. The gate plate one 5, the gate plate two 6, the gate plate three 7 and the gate plate four 8 are all sleeved on the outer side of the lead screw 10 through threads. Guide grooves 11 are opened on the inner walls of both sides of the tunnel kiln 1, and both sides of the support plate 12 are stuck inside the guide grooves 11. The trays 13 are stacked on the top of the support plate 12 through support rods. Tooth patterns are opened on both sides of the support plate 12. The motor three 15 is installed at the bottoms of both ends of the tunnel kiln 1 through bolts respectively, and the motor two 14 is installed at the bottom of the tunnel kiln 1 through bolts. The gear one 17 is installed inside the guide groove 11 through a bearing, and the gear one 17 meshes with the tooth pattern. The bottom of the gear one 17 passes through the bottom of the tunnel kiln 1 and is key-connected to the output shaft of the motor two 14. When feeding and discharging, only one of the gate plate one 5 and the gate plate two 6 and one of the gate plate three 7 and the gate plate four 8 will be opened forever. Thus, the other one is effectively used to block the hot air, avoiding the situation that the hot air flows outwards during the feeding and discharging processes inside the tunnel kiln 1. This not only reduces the waste of heat but also ensures the safety of personnel and property at both ends of the tunnel kiln 1.

[0032] In this embodiment, the motor four 16 is installed at the bottom of the tunnel kiln 1 through bolts. The bottom of the connecting sleeve 18 is key-connected to the output shafts of the motor three 15 and the motor four 16 respectively. The bottom of the connecting block 19 is stuck inside the connecting sleeve 18. A gear two 20 is welded to the top of the connecting block 19. The gear two 20 meshes with the tooth pattern. A curved surface 21 is integrally formed on the top of the gear two 20. An activity groove is provided on one side of the connecting sleeve 18. An activity block is welded to one side of the connecting block 19. One side of the activity block is stuck on the inner wall of the activity groove. The other side of the activity block is connected to the inner wall of the other side of the activity groove through a spring 22. A button one 23 is welded to the inner wall of the other side of the activity groove. Through holes 25 are provided at the top of the gate plate four 8, the bottom of the gate plate three 7, and the bottom of the gate plate two 6. An air duct 26 is provided at the top of the gate plate two 6. The inner side of one end of the tunnel kiln 1 is connected to the inner side of the gate sleeve 4 through the air duct 26. A chimney 27 is installed at the top of the tunnel kiln 1 through bolts. A channel 28 is welded to one side of the chimney 27. The gate sleeve 4 is connected to the chimney 27 through the channel 28. The bottom of the chimney 27 is connected to the inner side of the tunnel kiln 1. An electric valve 29 is installed at the bottom of the chimney 27. A sleeve 30 is welded to the top of the tunnel kiln 1. The top and bottom of the sleeve 30 are respectively connected to the top and the inner side of the tunnel kiln 1. A piston 31 is stuck inside the sleeve 30. A heat-insulating slider is welded to the bottom of the piston 31. The top of the piston 31 is connected to the inner wall of the top of the sleeve 30 through a spring 22. A button three 32 is welded to the inner wall of the sleeve 30. The button three 32 is respectively installed at the top and the bottom of the piston 31. When the gate plate two 6 rises upward, the air duct 26 is gradually blocked due to upward movement, thereby increasing the air pressure inside the tunnel kiln 1, causing the heat-insulating slider to be pushed upward by the air pressure, and causing the piston 31 to squeeze the button three 32 upward. The button three 32 opens the electric valve 29, and according to the change of the air pressure inside the tunnel kiln 1, the piston 31 squeezes the button three 32 downward or upward, thereby adjusting the opening degree of the bottom of the chimney 27 through the electric valve 29 to adjust the exhaust speed of the chimney 27, so as to ensure the stability of the air pressure and air flow in the tunnel kiln 1, and further ensure the stability of the temperature for firing the grinding balls. During the feeding and discharging processes, the firing temperature fluctuates due to the changes in air pressure and air flow, ensuring the quality of the firing process of the grinding balls.

[0033] In this embodiment, the bottom of the connecting block 19 is connected to the inner wall of the bottom of the connecting sleeve 18 through a spring 22. A second button 24 is welded on the inner wall of the bottom of the connecting sleeve 18. The second button 24 is connected to the third motor 15 and the fourth motor 16 through wires. The first button 23 is connected to the first motor 9 through a wire. The third motor 15 and the fourth motor 16 are symmetrically distributed on both sides of the tunnel kiln 1. A controller is externally connected to the tunnel kiln 1. The controller is connected to the burner 2, the first motor 9, the second motor 14, the third motor 15, the fourth motor 16, the first button 23, the second button 24, and the third button 32 through wires. The third button 32 is connected to the electric valve 29 through a wire. When in use, place the alumina ceramic grinding ball blank on the tray 13, and clamp both sides of the support plate 12 inside the guide groove 11 in the tunnel kiln 1. The first motor 9 drives the first shutter 5 to move upward through the lead screw 10, and then pushes the support plate 12 to the inside of the tunnel kiln 1, and then closes the first shutter 5. The curved surface 21 on the second gear 20 at the top of the third motor 15 is squeezed by the top of the tooth pattern on the support plate 12, causing the connecting block 19 to squeeze the second button 24 downward, thereby turning on the third motor 15. The third motor 15 drives the connecting sleeve 18, and the spring 22 in the movable groove pushes the movable block, causing the connecting block 19 to drive the second gear 20 to rotate. The second gear 20 drives the support plate 12 to move inside the guide groove 11 through meshing with the tooth pattern. The support plate 12 drives the tray 13 to move to the right inside the tunnel kiln 1, and the support plate 12 squeezes the second shutter 6, causing the movable block to squeeze the first button 23. The first button 23 turns on the first motor 9 on the second shutter 6. The first motor 9 raises the second shutter 6 through the lead screw 10, thereby continuing to move the support plate 12 and the tray 13 to the right inside the tunnel kiln 1 to the right of the second shutter 6, and then lowers the second shutter 6. The support plate 12 is continuously pushed to the right by the second gear 20 on the fourth motor 16 until the support plate 12 moves to the first gear 17. The second motor 14 drives the support plate 12 to move slowly inside the tunnel kiln 1 through the first gear 17. The burner 2 sprays the high-temperature flame generated by burning gas from both sides of the tray 13 inside the tunnel kiln 1 to perform the firing operation on the blank on the tray 13. The fired grinding balls are slowly pushed to near the third shutter 7 until the tooth pattern on the support plate 12 is stuck on the second gear 20 on the fourth motor 16. The fourth motor 16 drives the second gear 20 through the connecting sleeve 18 and the connecting block 19 until the support plate 12 squeezes the third shutter 7, and moves the support plate 12 and the tray 13 between the third shutter 7 and the fourth shutter 8. The chimney 27 generates suction on the gate sleeve 4 through the channel 28, causing air to enter the left side of the fourth shutter 8 through the vent 25. After cooling and lowering the temperature of the grinding balls, the heat-absorbed air enters the inside of the tunnel kiln 1 from the bottom of the third shutter 7 through the vent 25, and then cools and lowers the temperature of the grinding balls located on the right side of the burner 2 one by one, and drives the heat to the unfired blank to perform sufficient preheating and baking work on the blank, and then passes through the vent 25 at the bottom of the second shutter 6 and enters the left side of the second shutter 6.Fully dry the blank between the first gate plate 5 and the second gate plate 6. Flue gas and air enter the inner side of the gate sleeve 4 through the air duct 26, and then are discharged outward through the channel 28 and the chimney 27. Utilize the rotational speed difference between the second motor 14 and the fourth motor 16 to leave sufficient space inside both ends of the tunnel kiln 1 for the tray 13, and respectively use the second gate plate 6 and the third gate plate 7 to reduce the interference of heat radiation, so as to carry out sufficient drying and cooling work. It is possible to fully preheat and dry the blank before firing, and fully cool down the grinding balls and recover the waste heat after the firing work is completed, avoid the danger caused by the overheated removed grinding balls, and make the heat of the exhausted tail gas be fully recovered, reducing energy waste. The third motor 15 and the fourth motor 16 will only be powered on when the support plate 12 moves to the second gear 20 and the corresponding gate plate is opened, reducing power consumption.

[0034] The firing device for alumina ceramic grinding balls provides electrical energy for all electrical equipment through an external power supply. When in use, place the alumina ceramic grinding ball blank on the tray 13, and clamp both sides of the support plate 12 inside the guide groove 11 in the tunnel kiln 1. The first motor 9 drives the first shutter 5 to move upward through the lead screw 10, then pushes the support plate 12 to the inside of the tunnel kiln 1, and then closes the first shutter 5. The curved surface 21 on the second gear 20 at the top of the third motor 15 is squeezed by the top of the tooth pattern on the support plate 12, causing the connecting block 19 to squeeze the second button 24 downward, thereby turning on the third motor 15. The third motor 15 drives the connecting sleeve 18, and the spring 22 in the movable groove pushes the movable block, causing the connecting block 19 to drive the second gear 20 to rotate. The second gear 20 drives the support plate 12 to move inside the guide groove 11 through meshing with the tooth pattern. The support plate 12 drives the tray 13 to move to the right inside the tunnel kiln 1, and the support plate 12 squeezes the second shutter 6, causing the movable block to squeeze the first button 23. The first button 23 turns on the first motor 9 on the second shutter 6. The first motor 9 raises the second shutter 6 through the lead screw 10, further moving the support plate 12 and the tray 13 to the right inside the tunnel kiln 1 to the right side of the second shutter 6, and then lowers the second shutter 6. The support plate 12 is continuously pushed to the right by the second gear 20 on the fourth motor 16 until the support plate 12 moves to the first gear 17. The second motor 14 drives the support plate 12 to move slowly inside the tunnel kiln 1 through the first gear 17. The burner 2 sprays the high-temperature flame generated by burning gas from both sides of the tray 13 inside the tunnel kiln 1 through the flame port 3 to perform the firing operation on the blank on the tray 13. The fired grinding balls are slowly pushed to near the third shutter 7 until the tooth pattern on the support plate 12 is stuck on the second gear 20 on the fourth motor 16. The fourth motor 16 drives the second gear 20 through the connecting sleeve 18 and the connecting block 19 until the support plate 12 squeezes the third shutter 7, and moves the support plate 12 and the tray 13 between the third shutter 7 and the fourth shutter 8. The chimney 27 generates suction on the gate sleeve 4 through the channel 28, causing air to enter the left side of the fourth shutter 8 through the through port 25. After cooling and cooling down the grinding balls, the heat-absorbing air enters the inside of the tunnel kiln 1 from the bottom of the third shutter 7 through the through port 25, and then cools and cools down the grinding balls located on the right side of the burner 2 one by one, and drives the heat to the unfired blank to perform sufficient preheating and baking work on the blank, and then enters the left side of the second shutter 6 through the through port 25 at the bottom of the second shutter 6 to fully dry the blank between the first shutter 5 and the second shutter 6. The flue gas and air enter the inside of the gate sleeve 4 through the air duct 26, and then are discharged outward through the channel 28 and the chimney 27. By using the speed difference between the second motor 14 and the fourth motor 16, sufficient space is reserved inside both ends of the tunnel kiln 1 for the tray 13, and the second shutter 6 and the third shutter 7 are respectively used to reduce the interference of heat radiation for sufficient drying and cooling and cooling down work. It can fully preheat and dry the blank before firing, and fully cool and cool down the grinding balls after the firing work and recover the waste heat.Avoid the ground balls removed from being dangerous due to excessive temperature, and fully recover the heat of the exhausted tail gas to reduce energy waste. Motors III 15 and IV 16 will only be powered on and operate when the support plate 12 moves to the position of gear II 20 and the corresponding gate plate is opened, reducing power consumption. Only one of gate plate I 5 and gate plate II 6, and gate plate III 7 and gate plate IV 8 will be opened at any time. Furthermore, the other one is effectively used to block the hot air, avoiding the situation of hot air flowing outwards during the feeding and discharging processes, reducing heat waste, and ensuring the safety of personnel and property at both ends of the tunnel kiln 1. When gate plate II 6 rises upwards, the air duct 26 is gradually blocked due to upward movement, increasing the air pressure inside the tunnel kiln 1. As a result, the heat insulation slider is pushed upwards by the air pressure, and the piston 31 squeezes button III 32 upwards. Button III 32 opens the electric valve 29, and according to the change in the air pressure inside the tunnel kiln 1, the piston 31 squeezes button III 32 downwards or upwards, thereby adjusting the opening degree at the bottom of the chimney 27 through the electric valve 29 to adjust the exhaust speed of the chimney 27, ensuring the stability of the air pressure and air flow in the tunnel kiln 1, and then ensuring the stability of the firing temperature of the ground balls, avoiding fluctuations in the firing temperature caused by changes in air pressure and air flow during the feeding and discharging processes in the tunnel kiln 1, and ensuring the quality of the firing process of the ground balls.

[0035] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. A person skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. An alumina ceramic grinding ball firing device, comprising a tunnel kiln (1) and a gate sleeve (4), wherein a heating assembly is installed on the tunnel kiln (1), wherein the heating assembly comprises a burner (2) and a flame port (3), and wherein: The gate sleeve (4) is provided with a lifting assembly, the lifting assembly comprising a screw rod (10) and a motor one (9), the gate sleeve (4) is provided with a feeding assembly and a discharging assembly, the feeding assembly comprising a gate plate one (5) and a gate plate two (6), the discharging assembly comprising a gate plate three (7) and a gate plate four (8), a storage assembly is provided on the inner side of the tunnel kiln (1), the storage assembly comprising a support plate (12) and a tray (13), the tunnel kiln (1) is provided with a pushing assembly, the pushing assembly comprising a motor two (14) and a gear one (17), the tunnel kiln (1) is provided with a pushing assembly, the pushing assembly comprising a motor three (15) and a motor four (16), the motor three (15) is provided with a transmission assembly, the transmission assembly comprising a connecting sleeve (18) and a connecting block (19).

2. The alumina ceramic grinding ball firing device according to claim 1, characterized in that: The gate sleeve (4) is installed on the top of the tunnel kiln (1) by means of bolts. The gate sleeve (4) is distributed on the tops of both ends of the tunnel kiln (1). The burner (2) is installed on the top of the tunnel kiln (1) by means of bolts. The flame port (3) is installed on the bottom of the burner (2). The flame port (3) extends to the inner side of the tunnel kiln (1). The flame ports (3) are symmetrically distributed on both sides of the tunnel kiln (1).

3. The alumina ceramic grinding ball firing device according to claim 2, characterized in that: The motor 1 (9) is mounted on the top of the gate sleeve (4) by bolts, the top of the screw rod (10) is keyed to the output shaft of the motor 1 (9), the tops of the gate plates 1 (5), 2 (6), 3 (7) and 4 (8) are all clamped on the inner side of the gate sleeve (4), the bottoms of the gate plates 1 (5), 2 (6), 3 (7) and 4 (8) are all sealed on the inner wall of the tunnel kiln (1), the gate plates 1 (5) and 2 (6) are mounted on one end of the tunnel kiln (1), the gate plates 3 (7) and 4 (8) are mounted on the other end of the tunnel kiln (1), and the gate plates 1 (5), 2 (6), 3 (7) and 4 (8) are all mounted on the outer side of the screw rod (10) by threaded sleeves.

4. The alumina ceramic grinding ball firing device according to claim 1, characterized in that: Guide grooves (11) are provided on the inner walls of both sides of the tunnel kiln (1), both sides of the support plate (12) are clamped on the inner side of the guide grooves (11), the tray (13) is stacked on the top of the support plate (12) through support rods, both sides of the support plate (12) are provided with tooth patterns, the motor three (15) is respectively installed at the bottom of both ends of the tunnel kiln (1) through bolts, the motor two (14) is installed at the bottom of the tunnel kiln (1) through bolts, the gear one (17) is installed on the inner side of the guide groove (11) through a bearing, the gear one (17) is meshed with the tooth patterns, and the bottom of the gear one (17) passes through the bottom of the tunnel kiln (1) and is keyed to the output shaft of the motor two (14).

5. The alumina ceramic grinding ball firing device according to claim 4, characterized in that: The motor four (16) is installed at the bottom of the tunnel kiln (1) by bolts, the bottom of the connecting sleeve (18) is key-connected with the output shafts of the motor three (15) and the motor four (16) respectively, the bottom of the connecting block (19) is clamped on the inner side of the connecting sleeve (18), the top of the connecting block (19) is welded with a gear two (20), the gear two (20) is meshed with the tooth pattern, the top of the gear two (20) is integrally formed with a curved surface (21), one side of the connecting sleeve (18) is provided with a movable groove, one side of the connecting block (19) is welded with a movable block, one side of the movable block is clamped on the inner wall of the movable groove, the other side of the movable block is connected to the inner wall of the other side of the movable groove through a spring (22), and a button one (23) is welded on the inner wall of the other side of the movable groove.

6. The alumina ceramic grinding ball firing device according to claim 5, characterized in that: The bottom of the connecting block (19) is connected to the inner wall of the bottom of the connecting sleeve (18) through a spring (22); a button 2 (24) is welded on the inner wall of the bottom of the connecting sleeve (18); the button 2 (24) is connected to the motor 3 (15) and the motor 4 (16) through electric wires; the button 1 (23) is connected to the motor 1 (9) through electric wires; the motor 3 (15) and the motor 4 (16) are symmetrically distributed on both sides of the tunnel kiln (1).

7. The alumina ceramic grinding ball firing device according to claim 6, characterized in that: The top of the gate plate 4 (8), the bottom of the gate plate 3 (7) and the bottom of the gate plate 2 (6) are all provided with openings (25); the top of the gate plate 2 (6) is provided with an air duct (26); the inner side of one end of the tunnel kiln (1) is connected to the inner side of the gate sleeve (4) through the air duct (26); a chimney (27) is installed on the top of the tunnel kiln (1) by bolts; a channel (28) is welded on one side of the chimney (27); the gate sleeve (4) is connected to the chimney (27) through the channel (28); the bottom of the chimney (27) is connected to the inner side of the tunnel kiln (1); and an electric valve (29) is installed on the bottom of the chimney (27).

8. The alumina ceramic grinding ball firing device according to claim 7, characterized in that: A sleeve (30) is welded to the top of the tunnel kiln (1); the top and bottom of the sleeve (30) are respectively connected to the top and inner side of the tunnel kiln (1); a piston (31) is clamped on the inner side of the sleeve (30); a heat-insulating slider is welded to the bottom of the piston (31); and the top of the piston (31) is connected to the inner wall of the top of the sleeve (30) via a spring (22).

9. The alumina ceramic grinding ball firing device according to claim 8, characterized in that: A button three (32) is welded on the inner wall of the sleeve (30), and the button three (32) is respectively installed on the top and bottom of the piston (31).

10. The alumina ceramic grinding ball firing device according to claim 9, characterized in that: The tunnel kiln (1) is externally connected to a controller, and the controller is connected to a burner (2), a motor 1 (9), a motor 2 (14), a motor 3 (15), a motor 4 (16), a button 1 (23), a button 2 (24) and a button 3 (32) through electric wires, and the button 3 (32) is connected to an electric valve (29) through electric wires.

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