A sintering device and method for glass-ceramics

Abstract

The present invention discloses a sintering device for microcrystalline glass and a method thereof, comprising a chain plate machine, a sintering box is arranged at the right end of the chain plate machine, a pretreatment mechanism located on the left side of the sintering box is arranged on the top of the chain plate machine, the pretreatment mechanism comprises a preheating box body sleeved on the top of the chain plate machine, two heat insulation plates are arranged inside the preheating box body, the two heat insulation plates divide the internal space of the preheating box body into a primary preheating chamber, a secondary preheating chamber and a tertiary preheating chamber from left to right in sequence, and the pretreatment mechanism also comprises a cooling box located on the right side of the sintering box; the present invention can utilize the waste heat of the airflow discharged from the sintering box, allow the airflow to pass through multiple preheating chambers at one time, and allow the glass particles to be preheated step by step by utilizing the airflow preheating before being sent into the sintering box for direct sintering, and the preheating temperature of the glass particles is higher when they are closer to the sintering box, thereby finally reducing the temperature difference between the glass particles and the internal temperature of the sintering box, improving the sintering effect of the glass particles, and reducing the generation of surface cracks.

Description

Technical Field

[0001] The present invention belongs to the technical field of microcrystalline glass processing, and in particular relates to a sintering device and method for microcrystalline glass. Background Art

[0002] Glass-ceramics is a polycrystalline solid phase material containing glass bodies that is obtained by controlled nucleation and crystallization of certain basic glasses of specific composition at a certain temperature. Its production process is: weighing raw materials → mixing → high temperature melting and clarification → water quenching → drying of glass particles → molding and laying → sintering and crystallization → annealing → grinding, polishing and cutting → finished products. The sintering device is one of the important equipment in the production process of glass-ceramics.

[0003] For example, a microcrystalline glass sintering furnace system with publication number CN117504445B includes a sintering furnace and an exhaust port arranged on the sintering furnace, an S-shaped ventilation duct is arranged on the exhaust port, and dust scraping assemblies are arranged at the crests and troughs in the ventilation duct. The dust scraping assembly includes sliding components respectively arranged on both sides of the crests and troughs, and the sliding components are used to scrape dust particles attached to the inner wall of the arc-shaped duct.

[0004] In the above patent, the sintering temperature-carrying gas is directly discharged to the outside, resulting in heat waste. Meanwhile, the microcrystalline glass particles are directly sintered into the sintering device. The temperature in the sintering device is relatively high, which forms a temperature difference with the microcrystalline glass, and may cause cracks and affect the surface quality. Therefore, we propose a sintering device and method for microcrystalline glass. Summary of the invention

[0005] The object of the present invention is to provide a sintering device and method for glass-ceramics to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a sintering device for glass-ceramics, comprising a chain plate machine, a sintering box is arranged at the right end of the chain plate machine, a pretreatment mechanism located on the left side of the sintering box is arranged on the top of the chain plate machine, the pretreatment mechanism comprises a preheating box sleeved on the top of the chain plate machine, two heat insulation plates are arranged inside the preheating box, and the two heat insulation plates divide the internal space of the preheating box from left to right into a primary preheating chamber, a secondary preheating chamber and a tertiary preheating chamber, and the pretreatment mechanism also includes a cooling box located on the right side of the sintering box;

[0007] An air supply pipe is provided between the sintering box and the tertiary preheating chamber, and a reflux pipe is provided between the primary preheating chamber and the cooling box;

[0008] The chain plate machine includes a conveying chain plate arranged inside, and a material trough is opened on the surface of the conveying chain plate;

[0009] The preheating box is provided with a turning component for moving the glass particles in the material trough.

[0010] Preferably, a connecting pipe is provided between the secondary preheating chamber and the tertiary preheating chamber, and a mounting notch for a conveying chain plate to pass through is provided at the bottom of the preheating box.

[0011] Preferably, the flipping member includes a connecting long rod movably passing through two insulation plates, a ring is sleeved on the connecting long rod, a lifting cylinder is vertically arranged on the lower surface of the ring, a mounting plate is arranged at the lower end of the lifting cylinder, and a flipping plate is longitudinally arranged on the lower surface of the mounting plate.

[0012] Preferably, a reciprocating cylinder is horizontally arranged on the lower surface of the preheating box, an extension plate is arranged between the left end of the reciprocating cylinder and the connecting long rod, and a plurality of circular holes are opened on the surface of the flip plate.

[0013] Preferably, a cooling component is provided on the return pipe near the cooling box, and the cooling component includes a sleeve provided on the return pipe, a wiring terminal is embedded in the front end of the sleeve, and a refrigeration pipe located outside the return pipe is provided on the inner circumference of the sleeve.

[0014] Preferably, a heat-insulating layer is provided on the outer side of the sleeve, a support plate for supporting the sleeve is provided on the front surface of the cooling box, and a material discharge door is provided on the bottom of the cooling box.

[0015] Preferably, the right end of the chain conveyor extends through the sintering box, and the chain conveyor also includes a conveying roller supporting the conveying chain plate, a conveying shaft is arranged inside the conveying roller, and a conveying motor located outside the sintering box is arranged at the front end of the conveying shaft.

[0016] Preferably, a turning mechanism is provided inside the sintering box, and the turning mechanism includes a collecting plate horizontally located below the right end of the conveying chain plate, and a plurality of material stripping plates are longitudinally arranged inside the collecting plate. A guide rail is provided on the rear inner wall of the sintering box, and a connecting member for driving the material stripping plate to move is provided between the guide rail and the conveying shaft. A moving cylinder connected to the guide rail is provided on the inner surface of the sintering box.

[0017] Preferably, the connecting component includes an eccentric wheel fixed at the rear end of the conveying shaft, a rotating plate is rotatably provided on the rear surface of the eccentric wheel, a guide slide is sleeved on the guide rail, a pushing plate is rotatably provided between the guide slide and the rotating plate, a connecting base plate is provided on the lower surface of the guide slide, and the rear ends of the plurality of material removing plates are fixed to the connecting base plate.

[0018] A sintering method for glass-ceramics, specifically comprising the following steps:

[0019] S1, feeding glass particles into the trough, and the fed glass particles move to the right along with the chain conveyor and are first located in the primary preheating chamber, at which time the sintering box always maintains a suitable sintering temperature;

[0020] S2, the airflow in the sintering box first enters the third-stage preheating chamber, then enters the second-stage preheating chamber from the third-stage preheating chamber, and finally enters the first-stage preheating chamber. At this time, after being consumed in the first two preheating chambers, the temperature of the airflow that finally enters the primary preheating chamber is reduced, and the cooled airflow acts on the glass particles, which not only preheats but also reduces the temperature difference;

[0021] S3. After multi-stage preheating, the temperature of the glass particles gradually increases. When they are sent to the sintering box for sintering, the cracking caused by the temperature difference is reduced. At the same time, the turning mechanism is used to keep the glass particles flat during the sintering process, which is convenient for sintering.

[0022] S4. The sintered glass particles are sent to the cooling box, and the airflow in S that has been cooled again after passing through the primary preheating chamber is sent to the cooling box to cool the glass particles, relatively lowering the temperature of the glass particles and making it easier for the glass particles to be sent to the next process.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention can utilize the waste heat of the airflow discharged from the sintering box, allowing the airflow to pass through the multi-stage preheating chambers at one time, so that the glass particles are preheated step by step by the airflow preheating before being sent into the sintering box for direct sintering, and the closer the glass particles are to the sintering box, the higher the preheating temperature is, and finally the temperature difference between the glass particles and the internal temperature of the sintering box is reduced, the sintering effect of the glass particles is improved, and the generation of surface cracks is reduced.

[0025] The present invention combines a reflux pipe, a cooling component and a cooling box. The temperature of the airflow after multiple preheating and cooling is reduced, and then it flows back into the cooling box to perform primary cooling on the glass particles. In combination with the cooling component, the reflux gas is further cooled, thereby improving the cooling effect on the glass particles in the cooling box and facilitating the glass particles to enter the next processing step.

[0026] The present invention adopts a designed flipping mechanism, which can flip the glass particles in the material trough and discharge them into the collecting plate when the conveying chain plate moves, and drives the material-discharging plate to move back and forth left and right as the conveying roller rotates, so as to spread the discharged glass particles outward, and the situation of falling materials being piled up will not occur, thereby facilitating the sintering processing of the glass particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a glass-ceramic sintering device of the present invention;

[0028] Figure 2 It is a rear view structural schematic diagram of the microcrystalline glass sintering device of the present invention;

[0029] Figure 3 For the present invention Figure 1 A cross-sectional view of a medium-crystal glass sintering device;

[0030] Figure 4 For the present invention Figure 3 The structural diagram of the pretreatment mechanism;

[0031] Figure 5 For the present invention Figure 4 The structural diagram of the flipping component;

[0032] Figure 6 For the present invention Figure 4 A cross-sectional view of a cooling member;

[0033] Figure 7 For the present invention Figure 3 The structural diagram of the flipping mechanism;

[0034] Figure 8 For the present invention Figure 7 A rear view structural diagram of the middle flip mechanism;

[0035] Fig. 9 For the present invention Figure 8 A magnified image of area A;

[0036] In the figure: 100, chain conveyor; 101, conveying motor; 102, material trough; 103, collecting plate; 104, frame; 105, conveying roller; 106, conveying shaft; 107, conveying chain plate; 200, pretreatment mechanism; 201, preheating box; 202, cooling box; 2021, unloading door; 203, flipping member; 2031, connecting long rod; 2032, collar; 2033, lifting cylinder; 2034, mounting plate; 2035, flipping plate; 2036, reciprocating cylinder; 2037, extension plate; 204, return pipe; 205, connecting pipe; 206, insulation board ; 207, air supply pipe; 208, installation notch; 209, cooling component; 2091, sleeve; 2092, insulation layer; 2093, support plate; 2094, terminal; 2095, refrigeration pipe; 300, sintering box; 301, guide plate; 302, baffle plate; 303, unloading cylinder; 304, vibration motor; 400, turning mechanism; 401, collecting plate; 402, material shifting plate; 403, connecting component; 4031, eccentric wheel; 4032, rotating plate; 4033, pushing plate; 4034, guide slide; 404, guide rail; 405, moving cylinder. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] See also Figure 1 - Figure 5 The present invention provides a technical solution: a sintering device for microcrystalline glass, including a chain plate machine 100, a frame 104 is arranged at the bottom of the chain plate machine 100, and a collecting plate 103 is arranged obliquely inside the frame 104 and located below the conveying chain plate 107, so as to collect the fallen glass particles conveniently, a sintering box 300 is arranged at the right end of the chain plate machine 100, and a pretreatment mechanism 200 is arranged at the top of the chain plate machine 100 and located on the left side of the sintering box 300, and the pretreatment mechanism 200 can be used to utilize the waste heat of the airflow discharged from the sintering box 300, so that the airflow passes through the multi-stage preheating chamber at one time, so that the glass particles are preheated step by step by the airflow preheating before being sent into the sintering box 300 for direct sintering, and the glass particles are preheated step by step by the airflow preheating as they are closer to the sintering box 300. The higher the preheating temperature of the glass particles near the sintering box 300, the smaller the temperature difference between the glass particles and the internal temperature of the sintering box 300, the better the sintering effect of the glass particles, and the less surface cracks. The pretreatment mechanism 200 includes a preheating box 201 sleeved on the top of the chain plate machine 100, and two heat insulation plates 206 are arranged inside the preheating box 201. The two heat insulation plates 206 divide the internal space of the preheating box 201 from left to right into a primary preheating chamber, a secondary preheating chamber and a tertiary preheating chamber. The primary preheating chamber is the farthest one from the sintering box 300, and the tertiary preheating chamber is the closest to the sintering box 300. The pretreatment mechanism 200 also includes a cooling box 202 located on the right side of the sintering box 300.

[0040] An air delivery pipe 207 is provided between the sintering box 300 and the third-stage preheating chamber, which can allow the airflow discharged from the sintering box 300 to enter the preheating box 201 first. A return pipe 204 is provided between the primary preheating chamber and the cooling box 202, and the airflow after multiple preheating will flow back to the cooling box 202;

[0041] The chain conveyor 100 includes a conveying chain plate 107 disposed inside, and a material trough 102 is provided on the surface of the conveying chain plate 107;

[0042] The preheating box 201 is provided with a turning member 203 for stirring the glass particles in the material trough 102, so as to facilitate stirring the glass particles in the material trough 102 so that the airflow contacts the glass particles for preheating.

[0043] In this embodiment, preferably, a connecting pipe 205 is provided between the secondary preheating chamber and the tertiary preheating chamber to facilitate the passage of air between the two. An installation notch 208 is provided at the bottom of the preheating box 201 for the conveying chain plate 107 to pass through, so as to facilitate the installation of the preheating box 201 on the chain plate machine 100 without affecting the movement of the conveying chain plate 107.

[0044] In this embodiment, preferably, the flipping component 203 includes a connecting long rod 2031 that movably passes through the two insulation plates 206, and a ring 2032 is sleeved on the connecting long rod 2031. A limit screw is screwed on the ring 2032 to realize the detachable installation of the ring 2032. A lifting cylinder body 2033 is vertically arranged on the lower surface of the ring 2032. The lifting cylinder body 2033 can change the height of the flipping plate 2035 to facilitate extending into the feed trough 102. A mounting plate 2034 is arranged at the lower end of the lifting cylinder body 2033, and a flipping plate 2035 is longitudinally arranged on the lower surface of the mounting plate 2034. The lifting cylinder body 2033, the reciprocating cylinder body 2036 and the moving cylinder body 405 are all structures for wrapping the inner cylinder with an insulating outer layer, which play a protective and heat-insulating role for the inner cylinder.

[0045] In this embodiment, preferably, a reciprocating cylinder 2036 is horizontally arranged on the lower surface of the preheating box 201, and the reciprocating cylinder 2036 can drive the connecting long rod 2031 to move back and forth left and right, and a movable distance is left between the two ends of the connecting long rod 2031 and the two side walls of the preheating box 201, and an extension plate 2037 is arranged between the left end of the reciprocating cylinder 2036 and the connecting long rod 2031, and a plurality of circular holes are opened on the surface of the flip plate 2035, and the circular holes facilitate the glass particles to pass through when the flip plate 2035 is shifting the material.

[0046] In summary, when in use, the glass particles are fed into the material trough 102, and the glass particles in the multiple material troughs 102 are first fed into the primary preheating chamber, and the airflow generated by the sintering box 300 first enters the tertiary preheating chamber, and then enters the secondary preheating chamber from the tertiary preheating chamber through the connecting pipe 205, and finally enters the primary preheating chamber. After passing through the multiple preheating chambers, the temperature of the glass particles finally entering the primary preheating chamber is greatly reduced, and acts on the glass particles in the material trough 102, and the temperature difference will not be too high while the glass particles are preheated. At this time, the internal rod of the lifting cylinder 2033 extends, driving the mounting plate 2034 and the flip plate 2035 to move downward until the flip plate 2035 extends into the material trough 102, and then the reciprocating cylinder 2036 works. The internal rod is extended and retracted to drive the connecting long rod 2031 to move left and right, thereby driving the flip plate 2035 to move left and right, and the glass particles are flipped to facilitate the airflow to pass through the glass particles for preheating. In the process of utilizing the waste heat of the airflow, the temperature of the multi-stage preheating chamber is gradually increased, and the temperature difference of the glass particles finally entering the sintering box 300 is reduced, and cracks will not appear due to excessive temperature difference. The sintering quality of the glass particles is improved, waste heat utilization is realized, and resource waste is reduced. After the airflow is preheated and cooled in multiple stages, it can be discharged into the cooling box 202 to perform primary cooling on the sintered glass particles, which is convenient for the sintered glass to be discharged into the next process, reducing the inconvenience of transporting glass particles caused by high temperature, and improving the convenience and safety of sintering glass particles.

[0047] Example 2

[0048] Reference Figure 6 , which is the second embodiment of the present invention.

[0049] In this embodiment, preferably, a cooling member 209 is sleeved on the return pipe 204 near the cooling box 202. By combining the return pipe 204, the cooling member 209 and the cooling box 202, the temperature of the airflow after multiple preheating and cooling is reduced, and then the airflow returns to the cooling box 202 to perform primary cooling on the glass particles. In combination with the cooling member 209, the return gas is further cooled, thereby improving the cooling effect on the glass particles in the cooling box 202, and facilitating the glass particles to enter the next process. The cooling member 209 includes a sleeve on the return pipe 204. The sleeve 2091 has a wiring terminal 2094 embedded in the front end of the sleeve 2091, and a refrigeration pipe 2095 located on the outside of the return pipe 204 is arranged on the inner circumference of the sleeve 2091 to facilitate cooling the airflow returning into the cooling box 202, and an insulation layer 2092 is arranged on the outside of the sleeve 2091 to play a role of thermal insulation, a support plate 2093 is arranged on the front surface of the cooling box 202 to support the sleeve 2091, and a discharge door 2021 is arranged at the bottom of the cooling box 202 to facilitate the subsequent discharge of glass particles cooled to a certain temperature.

[0050] In summary, the reflux gas coming out of the multi-stage preheating chamber will enter the reflux pipe 204 and enter the cooling box 202 under the transportation of the wind conveying equipment. Before returning to the cooling box 202, the refrigeration pipe 2095 can be used to cool the internal space of the sleeve 2091, so that the airflow passing through the sleeve 2091 will have a certain cooling effect. The cooled airflow acts on the glass particles in the cooling box 202 for preliminary cooling, and then the glass particles after the preliminary cooling are discharged through the discharge door 2021 and subsequently enter the next process, thereby improving the convenience of glass sintering cooling.

[0051] Example 3

[0052] Reference Figure 7 - Fig. 9 , which is the third embodiment of the present invention.

[0053] In this embodiment, preferably, the right end of the chain conveyor 100 extends through the sintering box 300, and burner spray guns are staggered on the front and rear surfaces of the sintering box 300, which can spray high-temperature airflow to form a vortex state to act on the glass particles for sintering, so as to facilitate the discharge of glass particles in the material trough 102 into the collecting plate 401. The chain conveyor 100 also includes a conveying roller 105 supporting the conveying chain plate 107, and a conveying shaft 106 is arranged inside the conveying roller 105, and a conveying motor 101 located outside the sintering box 300 is arranged at the front end of the conveying shaft 106.

[0054] In the present embodiment, preferably, a turning mechanism 400 is provided inside the sintering box 300. By means of the turning mechanism 400, the glass particles in the material trough 102 can be turned over and discharged into the collecting plate 401 when the conveying chain plate 107 moves, and the material plate 402 is driven to move back and forth left and right as the conveying roller 105 rotates, so that the discharged glass particles are flattened outward, and the material will not pile up, which is convenient for the sintering processing of the glass particles. The turning mechanism 400 includes a collecting plate 401 horizontally located below the right end of the conveying chain plate 107, and a protrusion is provided on the right side of the collecting plate 401. A rotating shaft passing through the protrusion is provided inside the sintering box 300, and a turning motor is provided at the rear end of the rotating shaft. After the sintering of the glass particles is completed, the collecting plate 401 can be tilted downward, and the glass particles can be poured onto the guide plate 301 and sent to the cooling box 202 through the guide plate 301. A feeding hole for discharging glass particles is provided on the right side of the sintering box 300, and a The baffle plate 302 is provided on the right side of the sintering box 300. A discharge cylinder 303 for controlling the lifting of the baffle plate 302 is provided, and the guide plate 301 is inclined. A vibration motor 304 is provided at the bottom of the guide plate 301, and the space for installing the vibration motor 304 is divided by the guide plate 301, so that the temperature environment of the vibration motor 304 is suitable and will not be affected by the glass sintering temperature. A plurality of prying plates 402 are longitudinally arranged inside the collecting plate 401. The prying plates 402 are serrated, and the glass particles will not be accumulated while being pried, which is convenient for flattening the glass particles. A guide rail 404 is provided on the rear inner wall of the sintering box 300, and a connecting member 403 for driving the prying plate 402 to move is provided between the guide rail 404 and the conveying shaft 106. A moving cylinder body 405 connected to the guide rail 404 is provided on the inner surface of the sintering box 300. The height of the guide rail 404 can be changed by using the moving cylinder body 405, so that the prying plate 402 can move downward to the surface of the collecting plate 401.

[0055] In this embodiment, preferably, the connecting member 403 includes an eccentric wheel 4031 fixed at the rear end of the conveying shaft 106, and a rotating plate 4032 is rotatably provided on the rear surface of the eccentric wheel 4031. A guide slide 4034 is sleeved on the guide rail 404. The guide slide 4034 can limit the position of the material removal plate 402, and a pushing plate 4033 is rotatably provided between the guide slide 4034 and the rotating plate 4032 to facilitate the rotation of the rotating plate 4032. A connecting base plate is provided on the lower surface of the guide slide 4034, and the rear ends of multiple material removal plates 402 are fixed to the connecting base plate and can move toward the guide slide 4034.

[0056] In summary, when in use, the overall temperature of the preheated glass particles approaches the temperature during sintering. As the conveying chain plate 107 moves into the sintering box 300, the moving cylinder 405 works, and the internal rod extends downward to drive the guide rail 404 and the guide slide 4034 to move downward. At this time, the rotating plate 4032 and the pushing plate 4033 are in a reasonable matching state until the material-pickup plate 402 is located at a suitable height on the upper surface of the collecting plate 401, and falls into the collecting plate 401 as the chain plate moves. As the conveying chain plate 107 moves, the conveying roller 105 and the conveying shaft 106 driven to move rotate, driving the eccentric wheel 4031 and the rotating plate 4032 thereon to rotate. , let the pushing plate 4033 move left or right with the rotation of the rotating plate 4032, drive the guide slide 4034 to move along the guide rail 404, drive the material stripping plate 402 to move, the left and right movement of the material stripping plate 402 can spread the piled glass particles outward, increase the sufficiency of the subsequent sintering processing of the glass particles, after the sintering of the glass particles is completed, use the flip motor to drive the rotating shaft and the collecting plate 401 to rotate downward, the glass particles in the collecting plate 401 fall into the guide plate 301, and move downward along the guide plate 301 through the discharge hole and fall into the cooling box 202, and are cooled to a certain temperature, and finally discharged from the discharge door 2021 to enter the next process.

[0057] Example 4

[0058] Combining the devices in Example 1, Example 2 and Example 3, a sintering method for glass-ceramics in this embodiment is obtained, which specifically includes the following steps:

[0059] S1, feeding glass particles into the material trough 102, and the fed glass particles are first placed in the primary preheating chamber as the chain conveyor 100 moves to the right, and the sintering box 300 always maintains a suitable sintering temperature;

[0060] S2, the airflow in the sintering box 300 first enters the third-stage preheating chamber, then enters the second-stage preheating chamber from the third-stage preheating chamber, and finally enters the first-stage preheating chamber. At this time, after being consumed in the first two preheating chambers, the temperature of the airflow that finally enters the primary preheating chamber is reduced, and the cooled airflow acts on the glass particles, which not only performs preheating but also reduces the temperature difference;

[0061] S3, the temperature of the glass particles after multi-stage preheating gradually increases, and when they are sent to the sintering box 300 for sintering, the cracking caused by the temperature difference is reduced. At the same time, the turning mechanism 400 is used to make the glass particles flat during the sintering process, which is convenient for sintering;

[0062] S4, the sintered glass particles are sent to the cooling box 202, and the air flow that has been cooled again in the primary preheating chamber in S2 is sent to the cooling box 202 to cool the glass particles, thereby relatively lowering the temperature of the glass particles and facilitating the glass particles to be sent to the next process. If the cooling temperature needs to be lowered, the cooling component 209 can be used to cool the return pipe 204, and an air pipe is provided on the surface of the cooling box 202.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sintering device for glass-ceramics, comprising a chain conveyor (100), Features: A sintering box (300) is arranged at the right end of the chain conveyor (100), a pretreatment mechanism (200) is arranged on the top of the chain conveyor (100) and is located on the left side of the sintering box (300), the pretreatment mechanism (200) comprises a preheating box (201) sleeved on the top of the chain conveyor (100), two heat insulation plates (206) are arranged inside the preheating box (201), and the two heat insulation plates (206) divide the internal space of the preheating box (201) into a primary preheating chamber, a secondary preheating chamber and a tertiary preheating chamber from left to right, and the pretreatment mechanism (200) further comprises a cooling box (202) located on the right side of the sintering box (300); An air supply pipe (207) is provided between the sintering box (300) and the tertiary preheating chamber, and a reflux pipe (204) is provided between the primary preheating chamber and the cooling box (202); The chain plate machine (100) comprises a conveying chain plate (107) arranged inside, and a material trough (102) is provided on the surface of the conveying chain plate (107); The preheating box (201) is provided with a turning component (203) for moving glass particles inside the material trough (102); The flipping member (203) comprises a connecting rod (2031) that movably passes through two heat insulation plates (206); a collar (2032) is sleeved on the connecting rod (2031); a lifting cylinder (2033) is vertically arranged on the lower surface of the collar (2032); a mounting plate (2034) is arranged at the lower end of the lifting cylinder (2033); and a flipping plate (2035) is longitudinally arranged on the lower surface of the mounting plate (2034); A reciprocating cylinder (2036) is horizontally arranged on the lower surface of the preheating box (201), an extension plate (2037) is arranged between the left end of the reciprocating cylinder (2036) and the connecting long rod (2031), and a plurality of circular holes are opened on the surface of the flip plate (2035).

2. A sintering device for glass-ceramics according to claim 1, Features: A connecting pipe (205) is provided between the secondary preheating chamber and the tertiary preheating chamber, and a mounting notch (208) for the conveying chain plate (107) to pass through is provided at the bottom of the preheating box (201).

3. A sintering device for glass-ceramics according to claim 2, Features: The return pipe (204) is sleeved with a cooling component (209) near the cooling box (202), and the cooling component (209) comprises a sleeve (2091) sleeved on the return pipe (204), a connecting terminal (2094) is embedded in the front end of the sleeve (2091), and a refrigeration pipe (2095) located outside the return pipe (204) is arranged on the inner circumference of the sleeve (2091).

4. A sintering device for glass-ceramics according to claim 3, Features: The outer side of the sleeve (2091) is provided with a heat-insulating layer (2092), the front surface of the cooling box (202) is provided with a support plate (2093) for supporting the sleeve (2091), and the bottom of the cooling box (202) is provided with a material discharge door (2021).

5. A sintering device for glass-ceramics according to claim 4, Features: The right end of the chain plate machine (100) extends through the sintering box (300), and the chain plate machine (100) further includes a conveying roller (105) supporting the conveying chain plate (107), a conveying shaft (106) is arranged inside the conveying roller (105), and a conveying motor (101) located outside the sintering box (300) is arranged at the front end of the conveying shaft (106).

6. A sintering device for glass-ceramics according to claim 5, Features: The sintering box (300) is provided with a turnover mechanism (400) inside, and the turnover mechanism (400) comprises a material collecting plate (401) horizontally located below the right end of the conveying chain plate (107), and a plurality of material shifting plates (402) are longitudinally arranged inside the material collecting plate (401). A guide rail (404) is provided on the rear inner wall of the sintering box (300), and a connecting member (403) for driving the material shifting plate (402) to move is provided between the guide rail (404) and the conveying shaft (106), and a moving cylinder (405) connected to the guide rail (404) is provided on the inner surface of the sintering box (300).

7. A sintering device for glass-ceramics according to claim 6, Features: The connecting member (403) comprises an eccentric wheel (4031) fixed to the rear end of the conveying shaft (106); a rotating plate (4032) is rotatably provided on the rear surface of the eccentric wheel (4031); a guide slide (4034) is sleeved on the guide rail (404); a push plate (4033) is rotatably provided between the guide slide (4034) and the rotating plate (4032); a connecting bottom plate is provided on the lower surface of the guide slide (4034); and the rear ends of the plurality of material-diverting plates (402) are fixed to the connecting bottom plate.

8. A sintering method for glass-ceramics, It is characterized in that The specific steps include: Using a sintering device for glass-ceramics as claimed in claim 7; S1, feeding glass particles into the material trough (102), and the fed glass particles are first placed in the primary preheating chamber as the chain conveyor (100) moves to the right, and at this time, the sintering box (300) always maintains a suitable sintering temperature; S2, the airflow in the sintering box (300) first enters the third-stage preheating chamber, then enters the second-stage preheating chamber from the third-stage preheating chamber, and finally enters the first-stage preheating chamber. At this time, after being consumed in the first two preheating chambers, the temperature of the airflow that finally enters the primary preheating chamber is reduced, and the cooled airflow acts on the glass particles, which not only performs preheating but also reduces the temperature difference; S3, after the multi-stage preheating, the temperature of the glass particles gradually increases, and when they are sent to the sintering box (300) for sintering, the cracking caused by the temperature difference is reduced, and at the same time, the turning mechanism (400) is used to make the glass particles flat during the sintering process, which is convenient for sintering; S4, the sintered glass particles are sent to the cooling box (202), and the airflow that has been cooled again in the primary preheating chamber in S2 is sent to the cooling box (202) to cool the glass particles, thereby relatively lowering the temperature of the glass particles and facilitating the glass particles to be sent to the next process.

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