A sintering furnace

Abstract

The present application relates to sintering furnace technical field, especially to a kind of sintering kiln;Including bottom shell and sintering furnace body, sintering furnace body includes sintering furnace outer cylinder, machine cover and sintering furnace liner, sintering furnace outer cylinder is fixedly connected at the top end of bottom shell, the inside of machine cover bottom end and the outside of sintering furnace outer cylinder top end are equipped with threaded surface, machine cover is threadedly connected with sintering furnace outer cylinder top end, bottom shell is hollow inside design, the present application is filtered by the filter assembly and the reciprocating mechanism and the material laying mechanism that filter assembly works, so that the combustion exhaust gas in furnace can quickly pass through filter gas material, prevent the problem that waste gas overflow is too slow, leading to excessive pressure in furnace, by the rotation feeding mechanism and the driving mechanism that rotation feeding mechanism works, so that its sintering furnace has flexibility, it is convenient for operator to place the material to be sintered, increase work efficiency.

Description

Technical Field

[0001] This invention relates to the field of sintering furnace technology, and more particularly to a sintering kiln. Background Technology

[0002] A sintering kiln is a piece of equipment made of refractory materials for firing products. It is an essential facility in hot pressing of ceramics. By adding ceramic materials into the furnace chamber and using an electric heat source to sinter the materials, a sintered finished product is obtained.

[0003] However, existing sintering furnaces have the following problems during use: 1. Before use, materials need to be fed into the sintering furnace. Currently, feeding is usually done manually, which is labor-intensive and results in low sintering efficiency; 2. During combustion, the sintering furnace emits a large amount of flue gas, which causes air pollution. Existing sintering furnaces usually have a filter installed inside to filter the exhaust gas, but traditional filter mechanisms can cause gas to overflow too slowly, leading to excessive gas pressure inside the furnace, which can damage the equipment and prevent heating; 3. The gas flow inside the existing sintering furnace is poor, which can lead to uneven heating of the materials and affect the sintering quality. Therefore, we have proposed a new type of sintering kiln. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a sintering kiln, comprising a bottom shell and a sintering furnace body, the sintering furnace body comprising a sintering furnace outer cylinder, a machine cover and a sintering furnace inner liner, the sintering furnace outer cylinder being fixedly connected to the top of the bottom shell, the machine cover being threadedly connected to the top of the sintering furnace outer cylinder, the bottom shell being hollow inside, two support blocks being fixedly connected to the inner surface of the bottom end of the bottom shell, a rotating feeding mechanism being provided inside the bottom shell, and a drive mechanism cooperating with the rotating feeding mechanism being provided inside the bottom of the bottom shell, a placement plate being threadedly connected to the bottom end of the inner part of the machine cover, a filter assembly being provided inside the machine cover, and a reciprocating mechanism being provided on the outer surface of the machine cover;

[0005] The drive mechanism includes a servo motor fixedly installed on the inner surface of the bottom end of the bottom shell. The servo motor is covered with a heat insulation cover. The output shaft of the servo motor passes through the heat insulation cover and is fixedly connected to a first transmission rod. The top end of the first transmission rod is fixedly connected to the inner liner of the sintering furnace. A first circular groove is opened on the bottom surface of the inner liner of the sintering furnace. The top ends of the two support blocks are rotatably connected in the first circular groove.

[0006] The rotating feeding mechanism includes a geared disc fixedly connected to the inside of the bottom end of the bottom shell. The geared disc is symmetrically connected to two spur gears through gear teeth. The bottom ends of the two spur gears are slidably connected to the inner surface of the bottom end of the bottom shell. The top ends of the two spur gears are fixedly connected to lead screws. The surfaces of the two lead screws are rotatably connected to arc-shaped sliders and threaded blocks. The arc-shaped sliders are located below the threaded blocks. The inner surface of the outer cylinder of the sintering furnace is provided with a second circular groove. The two arc-shaped sliders are tightly attached to the inner surface of the second circular groove and are slidably connected to the second circular groove. The side surface of the threaded block is fixedly connected to a support rod. The surface of the inner liner of the sintering furnace is provided with two first limiting grooves. The two support rods pass through the first limiting grooves and are fixedly connected to a placement plate. The placement plate is slidably connected to the inner liner of the sintering furnace.

[0007] Preferably, the filter assembly includes a connecting disc slidably connected to the inner surface of the cover, a filter disc is provided in the middle of the connecting disc, the filter disc is covered with activated carbon, and a material spreading mechanism is provided in the middle of the filter disc.

[0008] Preferably, the reciprocating mechanism includes a mounting plate fixedly installed on the outer wall of the cover, a drive motor fixedly installed on the mounting plate, a second transmission rod fixedly connected to the output shaft of the drive motor, a missing gear fixedly connected to the surface of the second transmission rod, a spur rack fixedly connected to the top of the connecting plate, the missing gear and the spur rack being connected by gear teeth meshing, and a telescopic spring rod fixedly connected between the placement plate and the connecting plate.

[0009] Preferably, the material spreading mechanism includes a sleeve rotatably connected to the filter disc, a plurality of material spreading rods fixedly connected to the sleeve, a connecting rod fixedly connected to the inner side wall of the cover, a fixing block fixedly connected to the bottom end of the connecting rod, a second limiting groove being provided on the fixing block, and a ball bearing fixedly connected to the inner side wall of the sleeve, the ball bearing being slidably connected in the second limiting groove.

[0010] Preferably, the fixing block is inside the sleeve, and there is a certain distance between the bottom end of the fixing block and the bottom end of the sleeve, and there is a certain gap between the material spreading rod and the filter disc.

[0011] Preferably, a fixing frame is fixedly installed at the top of the bottom shell, and a hydraulic cylinder is fixedly installed on the crossbar of the fixing frame. The output shaft of the hydraulic cylinder is threadedly connected to the machine cover through a mounting plate. Both the machine cover and the outer cylinder of the sintering furnace are provided with threaded holes. The machine cover and the outer cylinder of the sintering furnace are connected by bolts. An exhaust pipe is fixedly connected through the top of the machine cover.

[0012] The present invention has at least the following beneficial effects: 1. The present invention, through the design of the filter component and the reciprocating mechanism and the material spreading mechanism that work together with the filter component, causes the connecting plate to shake up and down continuously, thereby realizing the up and down shaking of the filter material on the filter plate, so that the combustion exhaust gas in the furnace can quickly pass through the filter gas material, preventing the exhaust gas from overflowing too slowly, which would lead to excessive gas pressure in the furnace. At the same time, the material spreading rod rotates to flatten the filter material on the filter plate, avoiding the situation where the filter material piles up together, leaving gaps on the filter plate, causing the exhaust gas to overflow directly to the outside without being filtered.

[0013] 2. The present invention, through the design of a rotating feeding mechanism and a drive mechanism that works in conjunction with the rotating feeding mechanism, enables the placement tray to move up and down, making the sintering furnace more flexible, facilitating the placement of materials to be sintered by operators, increasing work efficiency. At the same time, the forward and reverse rotation of the inner liner of the sintering furnace can drive the flow of gas inside the furnace, thereby ensuring that the materials are heated evenly and guaranteeing the quality of sintering. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a front view of the internal structure of the present invention.

[0016] Figure 2 This is a connection diagram between the sintering furnace inner liner and the servo motor of the present invention.

[0017] Figure 3 This is a top-view cross-sectional structural diagram of the present invention.

[0018] Figure 4 yes Figure 3 Enlarged structural diagram at point A in the middle.

[0019] Figure 5 This is a side view cross-sectional structural diagram of the present invention.

[0020] Figure 6 yes Figure 5 Enlarged structural diagram at point B.

[0021] Figure 7 This is a schematic diagram of the connection between the sleeve and the fixing block of the present invention.

[0022] Figure 8 This is a three-dimensional structural diagram of the present invention.

[0023] In the diagram: 1. Bottom shell; 2. Sintering furnace body; 201. Sintering furnace outer cylinder; 202. Machine cover; 203. Sintering furnace inner liner; 3. Support block; 4. Drive mechanism; 401. Servo motor; 402. First transmission rod; 403. First circular groove; 5. Rotary feeding mechanism; 501. Gear disc; 502. Circular gear; 503. Lead screw; 504. Arc-shaped slider; 505. Threaded block; 506. Second circular groove; 507. Support rod; 508. Placement plate; 509. First limiting groove; 6. Placement plate 7. Filter assembly; 701. Connecting disc; 702. Filter disc; 8. Reciprocating mechanism; 801. Mounting plate; 802. Drive motor; 803. Second transmission rod; 804. Gear; 805. Spur rack; 806. Telescopic spring rod; 9. Material spreading mechanism; 901. Sleeve; 902. Material spreading rod; 903. Connecting rod; 904. Fixing block; 905. Second limiting groove; 906. Ball bearing; 10. Fixing frame; 11. Hydraulic rod; 12. Air outlet pipe; 13. Bolt; 14. Heat insulation cover. Detailed Implementation

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0025] See Figure 1-4 A sintering kiln includes a bottom shell 1 and a sintering furnace body 2. The sintering furnace body 2 includes a sintering furnace outer cylinder 201, a machine cover 202, and a sintering furnace inner liner 203. The sintering furnace outer cylinder 201 is fixedly connected to the top of the bottom shell 1. The machine cover 202 is threadedly connected to the top of the sintering furnace outer cylinder 201. The bottom shell 1 has a hollow interior design. Two support blocks 3 are fixedly connected to the inner surface of the bottom end of the bottom shell 1. A rotating feeding mechanism 5 is provided inside the bottom shell 1, and a drive mechanism 4 that works in conjunction with the rotating feeding mechanism 5 is provided inside the bottom shell 1. A placement plate 6 is threadedly connected to the bottom end of the machine cover 202.

[0026] See Figure 2 and Figure 3 The drive mechanism 4 includes a servo motor 401 fixedly installed on the inner surface of the bottom end of the bottom shell 1. The servo motor 401 is covered with a heat insulation cover 14. The output shaft of the servo motor 401 passes through the heat insulation cover 14 and is fixedly connected to a first transmission rod 402. The top end of the first transmission rod 402 is fixedly connected to the inner liner 203 of the sintering furnace. A first circular groove 403 is opened on the bottom surface of the inner liner 203 of the sintering furnace. The top ends of the two support blocks 3 are rotatably connected in the first circular groove 403.

[0027] See Figure 1-4The rotating feeding mechanism 5 includes a geared disc 501 fixedly connected to the inside of the bottom end of the bottom shell 1. The geared disc 501 is symmetrically connected to two spur gears 502 via meshing teeth. The bottom ends of both spur gears 502 are slidably connected to the inner surface of the bottom end of the bottom shell 1. Lead screws 503 are fixedly connected to the top ends of both spur gears 502. Arc-shaped sliders 504 and threaded blocks 505 are rotatably connected to the surfaces of the two lead screws 503. The arc-shaped sliders 504 are located below the threaded blocks 505. The inner surface of the sintering furnace outer cylinder 201... The inner surface of the sintering furnace liner 203 is provided with a second circular groove 506. Two arc-shaped sliders 504 are closely attached to the inner surface of the second circular groove 506, and the two arc-shaped sliders 504 are slidably connected to the second circular groove 506. A support rod 507 is fixedly connected to the side surface of the threaded block 505. Two first limiting grooves 509 are provided on the surface of the sintering furnace liner 203. A placement plate 508 is fixedly connected between the two support rods 507 through the first limiting grooves 509. The placement plate 508 is slidably connected to the sintering furnace liner 203.

[0028] In actual operation, firstly, the machine cover 202 is opened, and the material to be sintered is placed into the sintering furnace. The servo motor 401 is started, driving the first transmission rod 402 to rotate. The first transmission rod 402, in turn, drives the inner liner 203 of the sintering furnace to rotate. Since the inner liner 203 has first limiting grooves 509 on both sides, the support rod 507 is in close contact with the surface of the first limiting grooves 509. Furthermore, since the support rod 507 is fixedly connected to the threaded block 505, which is threaded onto the lead screw 503, the two support rods 507 provide a fixed limiting function for the placement tray 508. As the inner liner 203 rotates, the support rods 507 rotate accordingly, which in turn drives the threaded block 505 to rotate, which in turn drives the lead screw 503 to rotate. Since a spur gear 502 is fixedly connected to the bottom end of the lead screw 503, the spur gear 507... 02 meshes with the circular gear disc 501, so the lead screw 503 rotates on its own axis while revolving around the sintering furnace inner liner 203. The rotation of the lead screw 503 drives the threaded block 505 to move up and down on the lead screw 503. The up and down movement of the threaded block 505, in turn, drives the placement plate 508 to move up and down through the support rod 507. When the placement plate 508 moves to the highest position, the servo motor 401 stops working. At this time, the material to be sintered is placed on the placement plate 508, which facilitates the placement of the material. After the material is placed, the placement plate 508 can be lowered by simply starting the servo motor 401 to reverse. When sintering the material on the placement plate 508, the first transmission rod 402 can also be driven by the servo motor 401 to continuously rotate forward and backward. The first transmission rod 402 drives the sintering furnace inner liner 203 to rotate forward and backward. The forward and backward rotation of the sintering furnace inner liner 203 drives the gas flow in the furnace, thereby making the material heat evenly.

[0029] It should be noted that: by rotating and connecting the arc-shaped slider 504 at the bottom of the lead screw 503, a second circular groove 506 is opened on the inner surface of the outer cylinder 201 of the sintering furnace. Therefore, the arc-shaped slider 504 will revolve with the inner cylinder 203 of the sintering furnace. The arc-shaped slider 504 thus plays the role of limiting the lead screw 503. The heating source is integrated with the inner cylinder 203 of the sintering furnace. The heating source is installed below the bottom plate 508 inside the inner cylinder 203 of the sintering furnace.

[0030] See Figure 1 , Figure 5 , Figure 6 and Figure 7 The machine cover 202 has a filter assembly 7 inside and a reciprocating mechanism 8 on its outer surface. The filter assembly 7 includes a connecting plate 701 slidably connected to the inner surface of the machine cover 202. A filter plate 702 is located in the middle of the connecting plate 701. The filter plate 702 is covered with activated carbon. A material spreading mechanism 9 is located in the middle of the filter plate 702. The reciprocating mechanism 8 includes a mounting plate 801 fixedly installed on the outer wall of the machine cover 202. A drive motor 802 is fixedly installed on the mounting plate 801. A second transmission rod 803 is fixedly connected to the output shaft of the drive motor 802. A missing gear 804 is fixedly connected to the surface of the second transmission rod 803. The connecting plate 701... A rack 805 is fixedly connected to the top of the 1st part, and a gear 804 is connected to the rack 805 through gear meshing. A telescopic spring rod 806 is fixedly connected between the placement plate 6 and the connecting plate 701. The material spreading mechanism 9 includes a sleeve 901 rotatably connected to the filter plate 702. Multiple material spreading rods 902 are fixedly connected to the sleeve 901. A connecting rod 903 is fixedly connected to the inner side wall of the cover 202. A fixing block 904 is fixedly connected to the bottom end of the connecting rod 903. A second limiting groove 905 is opened on the fixing block 904. A ball bearing 906 is fixedly connected to the inner side wall of the sleeve 901. The ball bearing 906 is slidably connected in the second limiting groove 905.

[0031] In specific operation, when sintering materials, after placing the materials in the sintering furnace inner liner 203, the machine cover 202 is closed, and then the combustion equipment is started. At this time, a large amount of combustion exhaust gas is generated in the furnace, and the drive motor 802 is started simultaneously. The drive motor 802 drives the second transmission rod 803 to rotate, which in turn drives the missing gear 804 to rotate. When the teeth on the missing gear 804 mesh with the teeth on the rack 805, the missing gear 804 will drive the rack 805 to move upward. The upward movement of the rack 805 will in turn drive the connecting plate 701 to move upward. The upward movement of the connecting plate 701 pulls the telescopic spring rod 806 to extend, and the telescopic spring rod 806 generates elastic force. The upward movement of the connecting plate 701 also drives the filter plate 702 to move upward. When the teeth on the second transmission rod 803 do not mesh with the teeth on the rack 805, the connecting plate 701 will be in contact with the telescopic spring rod 806. Under the action of force, it moves downward, and the connecting plate 701 shakes, causing the connecting plate 701 to shake back and forth continuously. This causes the filter material on the filter plate 702 to shake up and down, allowing the combustion exhaust gas in the furnace to pass through the filter material quickly, preventing the exhaust gas from overflowing too slowly and causing excessive gas pressure in the furnace. As the filter plate 702 moves upward, it drives the sleeve 901 to move upward. When the sleeve 901 moves upward, the ball bearings 906 on the inner wall slide on the second limiting groove 905. Since the second limiting groove 905 limits the ball bearings 906, the sleeve 901 will rotate around the second limiting groove 905. The rotation of the sleeve 901 drives the spreading rod 902 to rotate. The rotation of the spreading rod 902 then spreads the filter material on the filter plate 702, preventing the filter material from piling up and leaving gaps in the filter plate 702, which would cause the exhaust gas to overflow directly to the outside without being filtered.

[0032] It should be noted that: the fixing block 904 is inside the sleeve 901, and there is a certain distance between the bottom end of the fixing block 904 and the bottom end of the sleeve 901. The purpose is to allow the sleeve 901 to rotate upwards a certain distance. There is a certain gap between the material spreading rod 902 and the filter disc 702. The purpose is to prevent the material spreading rod 902 from contacting the filter material on the filter disc 702 too much and pushing the filter material to one side.

[0033] See Figure 8 A fixed bracket 10 is fixedly installed at the top of the bottom shell 1. A hydraulic rod 11 is fixedly installed on the crossbar of the fixed bracket 10. The output shaft of the hydraulic rod 11 is threadedly connected to the cover 22 through the mounting plate. The cover 202 and the outer cylinder 201 of the sintering furnace are both provided with threaded holes. The cover 202 and the outer cylinder 201 of the sintering furnace are threadedly connected by bolts 13. An exhaust pipe 12 is fixedly connected through the top of the cover 202.

[0034] In specific operations, when sealing the sintering furnace, the inner surface of the cover 202 is pressed tightly against the outer surface of the outer cylinder 201 of the sintering furnace by activating the hydraulic rod 11. After the threaded hole on the cover 202 is aligned with the threaded hole on the outer cylinder 201 of the sintering furnace, it is fixed by bolts 13.

[0035] The working steps of this invention are as follows: Step 1, Feeding step: First, open the machine cover 202 and put the material to be sintered into the sintering furnace. The drive mechanism 4 drives the inner liner 203 of the sintering furnace to rotate. The rotation of the inner liner 203 of the sintering furnace drives the support rod 507 to rotate as well. The support rod 507 drives the threaded block 505 to rotate as well. The threaded block 505 drives the lead screw 503 to rotate as well. While the lead screw 503 revolves around the inner liner 203 of the sintering furnace, the lead screw 503 also rotates on its own axis. The rotation of the lead screw 503 drives the threaded block 505 to move up and down on the lead screw 503. The up and down movement of the threaded block 505 then... The support rod 507 drives the placement plate 508 to move up and down. When the placement plate 508 moves to the highest position, the servo motor 401 stops working. At this time, the material to be sintered is placed on the placement plate 508, which facilitates the placement of the material. After the material is placed, the placement plate 508 can be lowered simply by starting the servo motor 401 to reverse. When sintering the material on the placement plate 508, the servo motor 401 can also drive the first transmission rod 402 to continuously rotate forward and backward. The first transmission rod 402 drives the inner liner 203 of the sintering furnace to rotate forward and backward. The forward and backward rotation of the inner liner 203 of the sintering furnace drives the gas flow in the furnace, thereby making the material heat evenly.

[0036] Step Two, Filtration Step: When sintering the material, the combustion equipment is started. At this time, a large amount of combustion exhaust gas is generated inside the furnace. Simultaneously, the drive motor 802 is started. The drive motor 802 drives the second transmission rod 803 to rotate, which in turn drives the gear 804 to rotate. When the teeth on the gear 804 mesh with the teeth on the rack 805, the gear 804 drives the rack 805 to move upward. The rack 805 then drives the connecting plate 701 to move upward. The connecting plate 701 pulls the telescopic spring rod 806 to extend. The telescopic spring rod 806 generates elastic force, causing the connecting plate 701 to move upward and simultaneously driving the filter plate 702 to move upward. When the teeth on the second transmission rod 803 do not mesh with the teeth on the rack 805, the connecting plate 701 will move downward under the elastic force of the telescopic spring rod 806. 1. The shaking causes the connecting plate 701 to shake back and forth, which in turn causes the filter material on the filter plate 702 to shake up and down. This allows the combustion exhaust gas in the furnace to pass through the filter material quickly, preventing the exhaust gas from overflowing too slowly and causing excessive gas pressure in the furnace. As the filter plate 702 moves upward, it drives the sleeve 901 to move upward. When the sleeve 901 moves upward, the ball bearings 906 on the inner wall slide on the second limiting groove 905. Since the second limiting groove 905 limits the ball bearings 906, the sleeve 901 will rotate around the second limiting groove 905. The rotation of the sleeve 901 drives the spreading rod 902 to rotate. The rotation of the spreading rod 902 flattens the filter material on the filter plate 702, preventing the filter material from piling up and leaving gaps in the filter plate 702, which would cause the exhaust gas to overflow directly to the outside without being filtered.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sintering kiln, comprising a bottom shell and a sintering kiln body, the sintering kiln body comprising a sintering kiln outer cylinder, a machine cover, and a sintering kiln inner liner, the sintering kiln outer cylinder being fixedly connected to the top of the bottom shell, the machine cover being threadedly connected to the top of the sintering kiln outer cylinder, the bottom shell being hollow inside, characterized in that: Two support blocks are fixedly connected to the inner surface of the bottom end of the bottom shell. A rotating feeding mechanism is provided inside the bottom shell, and a drive mechanism that works in conjunction with the rotating feeding mechanism is also provided inside the bottom shell. A placement plate is threadedly connected to the bottom of the inside of the cover. A filter assembly is provided inside the cover, and a reciprocating mechanism is provided on the outer surface of the cover. The drive mechanism includes a servo motor fixedly installed on the inner surface of the bottom end of the bottom shell. The servo motor is covered with a heat insulation cover. The output shaft of the servo motor passes through the heat insulation cover and is fixedly connected to a first transmission rod. The top end of the first transmission rod is fixedly connected to the inner liner of the sintering furnace. A first circular groove is opened on the bottom surface of the inner liner of the sintering furnace. The top ends of the two support blocks are rotatably connected in the first circular groove. The rotating feeding mechanism includes a geared disc fixedly connected to the bottom of the bottom shell. The geared disc is symmetrically connected to two spur gears through gear teeth. The bottom ends of the two spur gears are slidably connected to the inner surface of the bottom of the bottom shell. The top ends of the two spur gears are fixedly connected to lead screws. The surfaces of the two lead screws are rotatably connected to arc-shaped sliders and threaded blocks. The arc-shaped sliders are located below the threaded blocks. The inner surface of the outer cylinder of the sintering furnace is provided with a second circular groove. The two arc-shaped sliders are closely attached to the inner surface of the second circular groove and are slidably connected to the second circular groove. The side surface of the threaded block is fixedly connected to a support rod. The surface of the inner liner of the sintering furnace is provided with two first limiting grooves. The two support rods pass through the first limiting grooves and are fixedly connected to a placement plate. The placement plate is slidably connected to the inner liner of the sintering furnace. The filter assembly includes a connecting plate that is slidably connected to the inner surface of the cover. A filter plate is located in the middle of the connecting plate. The filter plate is covered with activated carbon. A material spreading mechanism is located in the middle of the filter plate. The material spreading mechanism includes a sleeve that is rotatably connected to the filter plate. Multiple material spreading rods are fixedly connected to the sleeve. A connecting rod is fixedly connected to the inner side wall of the cover, and a fixing block is fixedly connected to the bottom end of the connecting rod. A second limiting groove is provided on the fixing block. A ball is fixedly connected to the inner side wall of the sleeve, and the ball is slidably connected in the second limiting groove. The filter assembly, reciprocating mechanism, and material spreading mechanism work together to shake the filter material on the filter disc up and down while the material spreading rod rotates to flatten the filter material on the filter disc.

2. A sintering kiln according to claim 1, wherein the reciprocating mechanism includes a mounting plate fixedly installed on the outer wall of the machine cover, a drive motor fixedly installed on the mounting plate, a second transmission rod fixedly connected to the output shaft of the drive motor, a gear fixedly connected to the surface of the second transmission rod, a rack fixedly connected to the top of the connecting plate, the gear and the rack being connected by gear meshing, and a telescopic spring rod fixedly connected between the placement plate and the connecting plate.

3. In a sintering kiln according to claim 1, the fixing block is inside the sleeve, and there is a certain distance between the bottom end of the fixing block and the bottom end of the sleeve, and a certain gap is left between the material spreading rod and the filter plate.

4. A sintering kiln according to claim 1, wherein a fixed frame is fixedly installed at the top of the bottom shell, a hydraulic system is fixedly installed on the crossbar of the fixed frame, the output shaft of the hydraulic rod is threadedly connected to the machine cover through a mounting plate, both the machine cover and the outer cylinder of the sintering furnace are provided with threaded holes, the machine cover and the outer cylinder of the sintering furnace are threadedly connected by bolts, and an exhaust pipe is fixedly connected through the top of the machine cover.

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