CN115507646B

CN115507646B - High-temperature sintering furnace for smelting silicon carbide porous ceramic

Info

Publication number: CN115507646B
Application number: CN202211062232.0A
Authority: CN
Inventors: 龚志刚; 龚冠城; 袁洪峰; 龚星宇; 李志涛; 徐博文; 孟龙; 周泽宇; 徐勤龙; 马坤; 高志民; 闫凡龙; 李海洲
Original assignee: Yamada New Material Group Co ltd
Current assignee: Yamada New Material Group Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-06-20
Anticipated expiration: 2042-08-31
Also published as: CN115507646A

Abstract

The invention relates to the technical field of sintering furnaces, and discloses a high-temperature sintering furnace for smelting silicon carbide porous ceramics, which comprises the following components: the furnace body, two baffles set up in the furnace body, two baffles cut apart the furnace body into first sintering chamber, second sintering chamber and cooling chamber, a plurality of heating pipes set up in first sintering chamber and second sintering chamber, the heating pipe is used for carrying out the sintering to treat in first sintering chamber and the second sintering chamber sintering product respectively, the cooling layer is fixed to be set up on the inner wall of furnace body, the cooler sets up in the cooling chamber, the cooler cools off the furnace body through the cooling layer, mobile device sets up in the furnace body, mobile device is used for controlling the sintering position of treating the sintering product, controlling means, the electricity is connected in heating pipe and cooler, and manage and control heating pipe and cooler, this application can be through mobile device realization treat the change of sintering product sintering temperature, the cooling efficiency of fritting furnace has been improved simultaneously, shorten production cycle greatly, production efficiency has been improved.

Description

High-temperature sintering furnace for smelting silicon carbide porous ceramic

Technical Field

The invention relates to the technical field of sintering furnaces, in particular to a high-temperature sintering furnace for smelting silicon carbide porous ceramics.

Background

The sintering furnace is a furnace which can lead the porous silicon carbide ceramics to be mutually bonded and transferred through substances under the action of high temperature, leads the air holes to be removed, the volume to be contracted and the strength to be improved, and gradually becomes a furnace with a certain geometric shape and strength.

When the current high-temperature sintering furnace sinters the silicon carbide porous ceramic, the silicon carbide porous ceramic is usually placed in a sintering chamber to be sintered, and the temperature is regulated by controlling a heating device, so that the sintering temperature reaches corresponding requirements, but the heating mode has strict requirements on the heating rate, when the heating rate is too fast or too slow, the silicon carbide porous ceramic is easy to crack, so that the waste of materials is caused, and meanwhile, in the prior art, after the sintering furnace finishes sintering the silicon carbide porous ceramic, the sintering furnace is filled with cooling gas, so that the sintering furnace is cooled, and the cooling mode needs to take a long time to reduce the temperature of the sintering furnace, so that the production efficiency is greatly reduced.

Therefore, how to provide a high-temperature sintering furnace capable of changing the sintering temperature of the silicon carbide porous ceramic by changing the sintering position is a technical problem to be solved at present.

Disclosure of Invention

The embodiment of the invention provides a high-temperature sintering furnace for smelting silicon carbide porous ceramics, which is used for solving the technical problems that the sintering temperature of a product to be sintered cannot be accurately changed, the cooling efficiency of the sintering furnace cannot be improved, and the production efficiency of the sintering furnace cannot be improved in the prior art.

In order to achieve the above object, the present invention provides a high temperature sintering furnace for smelting silicon carbide porous ceramics, comprising:

a furnace body;

the two partition plates are arranged in the furnace body and divide the furnace body into a first sintering chamber, a second sintering chamber and a cooling chamber;

the heating pipes are arranged in the first sintering chamber and the second sintering chamber, and each heating pipe is used for heating and sintering products to be sintered in the first sintering chamber and the second sintering chamber respectively;

the cooling layer is fixedly arranged on the inner wall of the furnace body;

the cooler is arranged in the cooling chamber and cools the furnace body through the cooling layer;

the moving device is arranged in the furnace body and is used for controlling the sintering position of the product to be sintered;

and the control device is electrically connected with the heating pipe and the cooler and is used for managing and controlling the heating pipe and the cooler.

Preferably, the mobile device includes:

the moving platform is provided with a sliding groove and is arranged in the furnace body;

a fixed block disposed on the mobile station;

the gear plate is slidably arranged in the chute;

one end of the rotating wheel is rotatably arranged in the fixed block, and the other end of the rotating wheel is rotatably connected with the gear plate;

the pushing plate is fixedly arranged on the gear plate and used for controlling the gear plate to move in the sliding groove.

Preferably, the method further comprises:

the material supporting mechanism is arranged in the furnace body and is used for supporting and placing the product to be sintered.

Preferably, the material supporting mechanism comprises:

a supporting block arranged on the moving table, wherein the supporting block is used for placing the product to be sintered;

the material supporting rod is fixedly arranged on the material supporting block, and the tooth block matched with the rotating wheel is arranged on the material supporting rod.

Preferably, the method further comprises:

the heating valve is arranged in the heating pipe and used for controlling the temperature of the heating pipe, and the heating valve is electrically connected with the control device;

and the cooling valve is arranged in the cooler and used for controlling the flow of the cooler, and the cooling valve is electrically connected with the control device.

Preferably, the control device includes:

the acquisition module is used for acquiring the temperature R of the first sintering chamber, the inner wall temperature S of the furnace body and the middle area temperature T of the furnace body;

the processing module is used for setting the opening of the heating valve in the second sintering chamber according to the temperature difference between the temperature R of the first sintering chamber and the target sintering temperature, setting the opening of the cooling valve according to the inner wall temperature S of the furnace body, and correcting the opening of the cooling valve according to the middle region temperature T of the furnace body;

and the control module is used for controlling the heating valve and the cooling valve.

Preferably, in the processing module, when setting the opening degree of the heating valve in the second sintering chamber according to the temperature difference between the temperature R of the first sintering chamber and the target sintering temperature, specifically:

the processing module is used for presetting a temperature difference matrix A between the temperature R of the first sintering chamber and the target sintering temperature, and setting A (A1, A2, A3 and A4), wherein A1 is a first preset temperature difference, A2 is a second preset temperature difference, A3 is a third preset temperature difference, A4 is a fourth preset temperature difference, and A1 is more than A2 and less than A3 and less than A4;

the processing module is used for presetting an opening matrix E of the heating valves, setting E (E1, E2, E3 and E4), wherein E1 is the opening of a first preset heating valve, E2 is the opening of a second preset heating valve, E3 is the opening of a third preset heating valve, E4 is the opening of a fourth preset heating valve, and E1 is less than E2 and less than E3 and less than E4;

the processing module is further configured to set an opening of the heating valve in the second sintering chamber according to a relationship between a temperature difference between the temperature R of the first sintering chamber and the target sintering temperature and each preset temperature difference:

when R is smaller than A1, selecting the opening E1 of the first preset heating valve as the opening of the heating valve in the second sintering chamber;

when R is less than or equal to A1 and less than A2, selecting the opening E2 of the second preset heating valve as the opening of the heating valve in the second sintering chamber;

when R is less than or equal to A2 and less than A3, selecting the opening E3 of the third preset heating valve as the opening of the heating valve in the second sintering chamber;

and when A3 is less than or equal to R < A4, selecting the opening E4 of the fourth preset heating valve as the opening of the heating valve in the second sintering chamber.

Preferably, the collecting module is further used for collecting the diameter X of the product to be sintered, and the processing module is further used for correcting the opening of the heating valve in the second sintering chamber according to the diameter X of the product to be sintered;

the processing module is used for presetting a diameter matrix Y of a product to be sintered, and setting Y (Y1, Y2, Y3 and Y4), wherein Y1 is the diameter of a first preset product to be sintered, Y2 is the diameter of a second preset product to be sintered, Y3 is the diameter of a third preset product to be sintered, Y4 is the diameter of a fourth preset product to be sintered, and Y1 is more than Y2 and less than Y3 and less than Y4;

the processing module is used for presetting an opening correction coefficient matrix n of a heating valve in a second sintering chamber, setting n (n 1, n2, n3 and n 4), wherein n1 is an opening correction coefficient of a first preset heating valve, n2 is an opening correction coefficient of a second preset heating valve, n3 is an opening correction coefficient of a third preset heating valve, n4 is an opening correction coefficient of a fourth preset heating valve, and n1 is more than 0.8 and less than n2 and n3 is more than n4 and less than 1.2;

the processing module is further configured to correct, when the opening of the heating valve is set to the opening Ei of the i-th preset heating valve, the opening of the heating valve in the second sintering chamber according to a relationship between the diameter X of the product to be sintered and the diameters of the respective preset products to be sintered, i=1, 2,3, 4:

when X is less than Y1, selecting an opening correction coefficient n1 of the first preset heating valve to correct the opening Ei of the ith preset heating valve, wherein the corrected opening of the heating valve in the second sintering chamber is Ei X n1;

when Y1 is less than or equal to X and less than Y2, selecting an opening correction coefficient n2 of the second preset heating valve to correct the opening Ei of the ith preset heating valve, wherein the corrected opening of the heating valve in the second sintering chamber is Ei X n2;

when Y2 is less than or equal to X and less than Y3, selecting an opening correction coefficient n3 of the third preset heating valve to correct the opening Ei of the ith preset heating valve, wherein the corrected opening of the heating valve in the second sintering chamber is Ei X n3;

when Y3 is less than or equal to X < Y4, the opening correction coefficient n4 of the fourth preset heating valve is selected to correct the opening Ei of the ith preset heating valve, and the opening of the heating valve in the corrected second sintering chamber is Ei X n4.

Preferably, in the processing module, when setting the opening of the cooling valve according to the inner wall temperature S of the furnace body, the opening is specifically:

the processing module is used for presetting an inner wall temperature matrix F of the furnace body, setting F (F1, F2, F3 and F4), wherein F1 is the inner wall temperature of the first preset furnace body, F2 is the inner wall temperature of the second preset furnace body, F3 is the inner wall temperature of the third preset furnace body, F4 is the inner wall temperature of the fourth preset furnace body, and F1 is more than F2 and less than F3 and less than F4;

the processing module is used for presetting an opening matrix G of the cooling valves, setting G (G1, G2, G3 and G4), wherein G1 is the opening of a first preset cooling valve, G2 is the opening of a second preset cooling valve, G3 is the opening of a third preset cooling valve, G4 is the opening of a fourth preset cooling valve, and G1 is more than G2 and less than G3 and less than G4;

the processing module is also used for setting the opening of the cooling valve according to the relation between the inner wall temperature S of the furnace body and the inner wall temperature of each preset furnace body:

when S is smaller than F1, selecting the opening G1 of the first preset cooling valve as the opening of the cooling valve;

when F1 is less than or equal to S and less than F2, selecting the opening G2 of the second preset cooling valve as the opening of the cooling valve;

when F2 is less than or equal to S and less than F3, selecting the opening G3 of the third preset cooling valve as the opening of the cooling valve;

and when F3 is less than or equal to S and less than F4, selecting the opening G4 of the fourth preset cooling valve as the opening of the cooling valve.

Preferably, in the processing module, when the opening of the cooling valve is corrected according to the temperature T of the middle area of the furnace body, the method specifically includes:

the processing module is used for presetting a middle area temperature matrix K of the furnace body, setting K (K1, K2, K3 and K4), wherein K1 is the middle area temperature of the first preset furnace body, K2 is the middle area temperature of the second preset furnace body, K3 is the middle area temperature of the third preset furnace body, K4 is the middle area temperature of the fourth preset furnace body, and K1 is more than K2 and less than K3 and less than K4;

the processing module is used for presetting an opening correction coefficient matrix h of the cooling valve, setting h (h 1, h2, h3 and h 4), wherein h1 is an opening correction coefficient of a first preset cooling valve, h2 is an opening correction coefficient of a second preset cooling valve, h3 is an opening correction coefficient of a third preset cooling valve, h4 is an opening correction coefficient of a fourth preset cooling valve, and h1 is more than 0.8 and less than h2 and h3 is more than 0.2 and less than h4 and less than 1.2;

the processing module is further configured to, when setting the opening of the cooling valve to the opening Gi of the ith preset cooling valve, correct the opening of the cooling valve according to a relationship between the temperature T of the middle region of the furnace body and the temperature of the middle region of each preset furnace body, where i=1, 2,3, 4:

when T is smaller than K1, selecting an opening correction coefficient h1 of the first preset cooling valve to correct the opening Gi of the ith preset cooling valve, wherein the corrected opening of the cooling valve is Gi x h1;

when K1 is less than or equal to T and less than K2, selecting an opening correction coefficient h2 of the second preset cooling valve to correct the opening Gi of the ith preset cooling valve, wherein the corrected opening of the cooling valve is Gi x h2;

when K2 is less than or equal to T and less than K3, selecting an opening correction coefficient h3 of the third preset cooling valve to correct the opening Gi of the ith preset cooling valve, wherein the corrected opening of the cooling valve is Gi x h3;

when K3 is less than or equal to T and less than K4, the opening correction coefficient h4 of the fourth preset cooling valve is selected to correct the opening Gi of the ith preset cooling valve, and the corrected opening of the cooling valve is Gi x h4.

The invention provides a high-temperature sintering furnace for smelting silicon carbide porous ceramics, which has the following beneficial effects compared with the prior art:

discloses a high-temperature sintering furnace for smelting silicon carbide porous ceramics, which comprises the following steps: the furnace body, two baffles set up in the furnace body, two baffles cut apart the furnace body into first sintering chamber, second sintering chamber and cooling chamber, a plurality of heating pipes set up in first sintering chamber and second sintering chamber, the heating pipe is used for carrying out the sintering to treat in first sintering chamber and the second sintering chamber sintering product respectively, the cooling layer is fixed to be set up on the inner wall of furnace body, the cooler sets up in the cooling chamber, the cooler cools off the furnace body through the cooling layer, mobile device sets up in the furnace body, mobile device is used for controlling the sintering position of treating the sintering product, controlling means, the electricity is connected in heating pipe and cooler, and manage and control heating pipe and cooler, this application can be through mobile device realization treat the change of sintering product sintering temperature, the cooling efficiency of fritting furnace has been improved simultaneously, shorten production cycle greatly, production efficiency has been improved.

Drawings

FIG. 1 shows a cross-sectional view of a high temperature sintering furnace for smelting silicon carbide porous ceramics in an embodiment of the invention;

FIG. 2 is a schematic diagram showing the structure of a mobile station, a fixed block and a push plate in an embodiment of the present invention;

FIG. 3 is a schematic view showing the structure of a rotating wheel according to an embodiment of the present invention;

FIG. 4 shows a schematic view of the structure of a gear plate in an embodiment of the invention;

FIG. 5 shows a schematic structural diagram of a material supporting mechanism in an embodiment of the invention;

FIG. 6 shows a functional block diagram of a control device in an embodiment of the invention;

in the figure, 1, a furnace body; 2. a partition plate; 3. a first sintering chamber; 4. a second sintering chamber; 5. a cooling chamber; 6. heating pipes; 7. a cooling layer; 8. a cooler; 9. a mobile station; 10. a chute; 11. a fixed block; 12. a gear plate; 13. a rotating wheel; 14. a push plate; 15. a supporting block; 16. a material supporting rod; 100. an acquisition module; 110. a processing module; 120. and a control module. Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The following is a description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings.

As shown in fig. 1,2,3,4 and 5, an embodiment of the present invention discloses a high temperature sintering furnace for smelting silicon carbide porous ceramics, comprising:

a furnace body 1;

two partition boards 2 are arranged in the furnace body 1, and the two partition boards 2 divide the furnace body 1 into a first sintering chamber 3, a second sintering chamber 4 and a cooling chamber 5;

the heating pipes 6 are arranged in the first sintering chamber 3 and the second sintering chamber 4, and each heating pipe 6 is used for heating and sintering products to be sintered in the first sintering chamber 3 and the second sintering chamber 4 respectively;

the cooling layer 7 is fixedly arranged on the inner wall of the furnace body 1;

a cooler 8 provided in the cooling chamber 5, the cooler 8 cooling the furnace body 1 through the cooling layer 7;

the moving device is arranged in the furnace body 1 and is used for controlling the sintering position of the product to be sintered;

and a control device electrically connected to the heating pipe 6 and the cooler 8, and managing and controlling the heating pipe 6 and the cooler 8.

It should be noted that, through setting up heating pipe 6 in first sintering room 3 and second sintering room 4, can realize the heating sintering of treating the sintering product through heating pipe 6, the quantity of heating pipe 6 can be set up according to actual demand, not specifically limited here, set up cooling layer 7 on the inner wall of furnace body 1, and set up cooling chamber 5 in furnace body 1, cooler 8 in cooling chamber 5 can be with the coolant liquid input to cooling layer 7, and then carry out cooling treatment to the sintering furnace, this application still is provided with mobile device, set up mobile device in furnace body 1, can change the position of treating the sintering product through mobile device, and then change the sintering temperature of treating the sintering product, make treat the sintering product and can carry out more stable sintering, improve the performance of treating the sintering product.

Referring specifically to fig. 2-4, in some embodiments of the present application, the mobile device includes:

a moving table 9 provided with a chute 10, wherein the moving table 9 is arranged in the furnace body 1;

a fixed block 11 provided on the mobile station 9;

a gear plate 12, wherein the gear plate 12 is slidably arranged in the chute 10;

the rotating wheel 13 is provided with a tooth block matched with the gear plate 12, one end of the rotating wheel 13 is rotatably arranged in the fixed block 11, and the other end of the rotating wheel 13 is rotatably connected with the gear plate 12;

a push plate 14 fixedly arranged on the gear plate 12, wherein the push plate 14 is used for controlling the gear plate 12 to move in the chute 10.

Referring specifically to fig. 5, in some embodiments of the present application, the method further includes:

the material supporting mechanism is arranged in the furnace body 1 and is used for supporting and placing the product to be sintered.

In some embodiments of the present application, the stock holding mechanism comprises:

a supporting block 15, which is arranged on the moving table 9, wherein the supporting block 15 is used for placing the product to be sintered;

the material supporting rod 16 is fixedly arranged on the material supporting block 15, and the material supporting rod 16 is provided with a tooth block matched with the rotating wheel.

It should be noted that, be provided with spout 10 on mobile station 9, spout 10 and gear plate 12 can mutually support, and then make the bottom of gear plate 12 slide in spout 10, still be provided with fixed block 11 in the fritting furnace, fixed block 11 can fix on mobile station 9 according to actual demand, the one end of rotating wheel 13 sets up in fixed block 11, and then can take place to rotate in fixed block 11, the other end of rotating wheel 13 is provided with the tooth piece with gear plate 12 matched with, can realize the rotation of rotating wheel 13 through pushing gear plate 12, still be provided with on the material supporting piece 15 and hold in the palm material pole 16, still offered the tooth piece with rotating wheel 13 matched with on the material supporting piece 16, through pushing push pedal 14, gear plate 12 takes place the motion in spout 10, and then drive rotating wheel 13 takes place to rotate, rotating wheel 13 drives material supporting piece 16 and takes place to remove, and then realize holding in the material 15 and drive the product of waiting to sinter and move forward or backward. According to the device, the position of the product to be sintered can be changed through the moving device, meanwhile, the sintering temperature is changed, and the product to be sintered is better in performance.

In some embodiments of the present application, further comprising:

the heating valve is arranged in the heating pipe 6 and is used for controlling the temperature of the heating pipe 6, and the heating valve is electrically connected with the control device;

and a cooling valve is arranged in the cooler 8 and is used for controlling the flow of the cooler, and the cooling valve is electrically connected with the control device.

The heating temperature of the heating pipe 6 can be controlled by controlling the opening degree of the heating valve, and the flow rate of the cooling water in the cooler 8 can be controlled by controlling the opening degree of the cooling valve.

In some embodiments of the present application, the control device includes:

The acquisition module can acquire the temperature of the first sintering chamber, the temperature of the inner wall of the furnace body and the temperature of the middle area of the furnace body through the temperature sensor.

In some embodiments of the present application, in the processing module, when setting the opening of the heating valve in the second sintering chamber according to the temperature difference between the temperature R of the first sintering chamber and the target sintering temperature, specifically:

the processing module is used for presetting an opening matrix E of a heating valve in a second sintering chamber and setting E (E1, E2, E3 and E4), wherein E1 is the opening of a first preset heating valve, E2 is the opening of a second preset heating valve, E3 is the opening of a third preset heating valve, E4 is the opening of a fourth preset heating valve, and E1 is more than E2 and less than E3 and less than E4;

It should be noted that, according to the relation between the temperature difference between the temperature of the first sintering chamber and the target sintering temperature and each preset temperature difference, the opening of the heating valve in the second sintering chamber is set, and after the sintering of the product to be sintered in the first stage is performed, the sintering in the second stage is directly performed by setting the opening of the heating valve, so that the phenomenon that the product to be sintered is broken or damaged due to uneven heating rate can be effectively avoided.

In some embodiments of the present application, the collecting module is further configured to collect a diameter X of the product to be sintered, and the processing module is further configured to correct an opening of the heating valve in the second sintering chamber according to the diameter X of the product to be sintered;

It should be noted that, when the opening of the heating valve is set to the opening Ei of the i preset heating valve, i=1, 2,3,4, the opening of the heating valve in the second sintering chamber is corrected according to the relationship between the diameter X of the product to be sintered and the diameters of the products to be sintered, and the performance of the product to be sintered can be ensured to be more perfect by correcting the opening of the heating valve in the second sintering chamber.

In some embodiments of the present application, in the processing module, when setting the opening of the cooling valve according to the inner wall temperature S of the furnace body, specifically:

It should be noted that, this application through setting for the aperture of cooling valve according to the relation between the inner wall temperature S of furnace body and the inner wall temperature of each preset furnace body, can cool off the sintering furnace effectively, improved the cooling efficiency of sintering furnace, and then shortened cooling time, promoted production efficiency widely.

In some embodiments of the present application, in the processing module, when the opening of the cooling valve is corrected according to the temperature T of the middle area of the furnace body, specifically:

When the opening of the cooling valve is set to be the i-th preset opening Gi of the cooling valve, i=1, 2,3,4, the opening of the cooling valve is corrected according to the relationship between the temperature T of the middle region of the furnace body and the temperature of the middle region of each preset furnace body.

In summary, the embodiment of the invention discloses a high-temperature sintering furnace for smelting silicon carbide porous ceramics, which comprises the following components: the furnace body, two baffles set up in the furnace body, two baffles cut apart the furnace body into first sintering chamber, second sintering chamber and cooling chamber, a plurality of heating pipes set up in first sintering chamber and second sintering chamber, the heating pipe is used for carrying out the sintering to treat in first sintering chamber and the second sintering chamber sintering product respectively, the cooling layer is fixed to be set up on the inner wall of furnace body, the cooler sets up in the cooling chamber, the cooler cools off the furnace body through the cooling layer, mobile device sets up in the furnace body, mobile device is used for controlling the sintering position of treating the sintering product, controlling means, the electricity is connected in heating pipe and cooler, and manage and control heating pipe and cooler, this application can be through mobile device realization treat the change of sintering product sintering temperature, the cooling efficiency of fritting furnace has been improved simultaneously, shorten production cycle greatly, production efficiency has been improved.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Although the invention has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the entire description of these combinations is not made in the present specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Those of ordinary skill in the art will appreciate that: the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature sintering furnace for smelting silicon carbide porous ceramics, which is characterized by comprising:

a furnace body;

the cooling layer is fixedly arranged on the inner wall of the furnace body;

the control device is electrically connected with the heating pipe and the cooler and is used for managing and controlling the heating pipe and the cooler;

the cooling valve is arranged in the cooler and used for controlling the flow of the cooler, and the cooling valve is electrically connected with the control device;

the control device includes:

2. The high-temperature sintering furnace for smelting porous silicon carbide ceramics according to claim 1, wherein the moving means comprises:

a fixed block disposed on the mobile station;

the gear plate is slidably arranged in the chute;

the rotating wheel is provided with a tooth block matched with the gear plate, one end of the rotating wheel is rotatably arranged in the fixed block, and the other end of the rotating wheel is rotatably connected with the gear plate;

3. The high-temperature sintering furnace for smelting silicon carbide porous ceramics according to claim 2, further comprising:

4. A high temperature sintering furnace for smelting porous silicon carbide ceramics according to claim 3, wherein the material supporting mechanism comprises:

5. The high-temperature sintering furnace for smelting porous silicon carbide ceramic according to claim 1, wherein in the processing module, when setting the opening degree of the heating valve in the second sintering chamber according to the temperature difference between the temperature R of the first sintering chamber and the target sintering temperature, specifically:

6. The high-temperature sintering furnace for smelting silicon carbide porous ceramics according to claim 5, wherein,

the collecting module is also used for collecting the diameter X of the product to be sintered, and the processing module is also used for correcting the opening of the heating valve in the second sintering chamber according to the diameter X of the product to be sintered;

7. The high-temperature sintering furnace for smelting porous silicon carbide ceramics according to claim 1, wherein in the processing module, when the opening degree of the cooling valve is set according to the inner wall temperature S of the furnace body, specifically:

8. The high-temperature sintering furnace for smelting porous silicon carbide ceramics according to claim 7, wherein in the processing module, when the opening degree of the cooling valve is corrected according to the temperature T of the middle region of the furnace body, specifically: