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CN-121994024-A - Sintering furnace with preheating function

CN121994024ACN 121994024 ACN121994024 ACN 121994024ACN-121994024-A

Abstract

The invention relates to the field of heat treatment equipment, in particular to a sintering furnace with a preheating function, which comprises a sintering furnace body, a closed cover, a heat preservation furnace and the like; the sintering furnace body is connected with a sealing cover, and the sintering furnace body is provided with a heat preservation furnace. According to the invention, two temperature areas are divided by arranging two different furnace bodies of the sintering furnace body and the heat preservation furnace, the sintering furnace body always keeps high-temperature operation, the heat preservation furnace is used for preheating materials and primarily cooling after sintering, and the materials are transferred in different temperature areas, so that uninterrupted continuous sintering treatment is realized, the problem that a large amount of time is consumed due to direct heating and cooling of a single sintering furnace body in the prior art is avoided, the sintering efficiency is effectively improved, and the design utilizes the waste heat of the sintering furnace body to preheat the materials without additional heating equipment, thereby improving the heat energy utilization rate and accelerating the heat transfer speed.

Inventors

  • Deng Yiyong
  • CHEN GANG
  • JIANG ZHONGXIANG

Assignees

  • 广东泛瑞新材料股份有限公司

Dates

Publication Date
20260508
Application Date
20260205

Claims (10)

  1. 1. A sintering furnace with a preheating function comprises a sintering furnace body (1), and is characterized by further comprising a sealing cover (2), a heat preservation furnace (3), a supporting table (4), a material frame (5), a push-pull assembly, a moving assembly and a feeding assembly, wherein the sealing cover (2) is connected to the sintering furnace body (1), a plurality of connecting strips (201) are fixedly connected to the sealing cover (2) in an annular distribution mode, a sealing plate (202) is fixedly connected to one end, far away from the sealing cover (2), of all the connecting strips (201) together, the connecting strips (201) and the sealing plate (202) are located in the sintering furnace body (1), a limiting ring (101) for limiting the position of the sealing plate (202) is fixedly connected to the sintering furnace body (1), the heat preservation furnace (3) is installed on the sintering furnace body (1), the heat preservation furnace (3) is located on one side, connected to the sealing cover (2), the inner diameter of the heat preservation furnace (3) is identical to the outer diameter of the sealing cover (2), a plurality of door plates (301) are installed on the heat preservation furnace (3), a plurality of hollow heat preservation pipes (201) are installed on the sintering furnace body (1) and are connected to the moving assemblies for controlling the door plates (301) to be opened, each cooling pipe (302) penetrates through one connecting strip (201), the hollow connecting strips (201) are communicated with the inside of the sintering furnace body (1), a bearing table (4) is arranged on the heat preservation furnace (3), material frames (5) are arranged in the sintering furnace body (1), placing frames (203) for placing the material frames (5) are arranged on all the connecting strips (201) together, a push-pull assembly for controlling the movement of the sealing cover (2) is connected to the heat preservation furnace (3), and a feeding assembly for moving the material frames (5) is connected to the bearing table (4).
  2. 2. The sintering furnace with the preheating function according to claim 1 is characterized in that the push-pull assembly comprises an electric push rod (21) and a connecting rod (22), the electric push rod (21) is installed at the bottom of the heat preservation furnace (3), the connecting rod (22) is fixedly connected to the telescopic end of the electric push rod (21), and the connecting rod (22) penetrates into the heat preservation furnace (3) to be fixedly connected with the sealing cover (2).
  3. 3. The sintering furnace with the preheating function according to claim 1 is characterized in that the moving assembly comprises a first guide rail (31) and a first electric sliding block (32), the sintering furnace body (1) is provided with the two first guide rails (31), each first guide rail (31) is connected with the first electric sliding block (32) in a sliding mode, and all the first electric sliding blocks (32) are fixedly connected with a door plate (301) and drive the door plate (301) to slide and open.
  4. 4. The sintering furnace with the preheating function according to claim 1, wherein the feeding assembly comprises a support bracket (401), support columns (402), electric hydraulic rods (403), travelling wheels (404) and a driving assembly, the driving assembly is connected to the support table (4), the driving assembly is connected with two support brackets (401), two support columns (402) are connected to the lower side of each support bracket (401), the electric hydraulic rods (403) for adjusting the distance are connected between each support bracket (401) and each support column (402), the travelling wheels (404) are arranged at the bottoms of the support columns (402), one lifting edge (501) is fixedly connected to each of two sides of the material frame (5), and the upper surface of each support bracket (401) is in contact with the lower surface of each lifting edge (501) and is used for supporting the material frame (5).
  5. 5. The sintering furnace with the preheating function according to claim 4, wherein the driving assembly comprises a second guide rail (41), a second electric sliding block (42) and a sliding rod (43), the two guide rails (41) are arranged on the bearing table (4), each second guide rail (41) is connected with the second electric sliding block (42) in a sliding mode, each second electric sliding block (42) is fixedly connected with the sliding rod (43), and each sliding rod (43) is connected with the bearing bracket (401) in a sliding mode.
  6. 6. The sintering furnace with the preheating function according to claim 5 is characterized by further comprising a temperature control pipe (6) and an exchange pipe (7), wherein the temperature control pipe (6) is connected to one side, far away from the sealing cover (2), of the sintering furnace body (1), the temperature control pipe (6) is communicated with the interior of the sintering furnace body (1), the exchange pipe (7) for exchanging heat is communicated with the temperature control pipe (6), and the exchange pipe (7) is communicated with the interior of the heat preservation furnace (3).
  7. 7. The sintering furnace with the preheating function according to claim 6 is characterized by further comprising a rotating block (205), a motor (61) and a plug-in rod (62), wherein the rotating block (205) is rotatably connected to the sealing plate (202), a plurality of communication grooves (204) are formed in the sealing plate (202), the communication grooves (204) are communicated with a space, facing one side of the sealing cover (2), of the sealing plate (202), a plurality of communication ports (206) are formed in the rotating block (205), the communication ports (206) are communicated with a space, facing away from the sealing cover (2), of the sealing plate (202), the communication grooves (204) are matched with the communication ports (206), the motor (61) is mounted on the temperature control tube (6), the plug-in rod (62) is plugged with the rotating block (205), and the plug-in rod (62) is fixedly connected with an output shaft of the motor (61).
  8. 8. A sintering furnace with preheating function according to claim 7, wherein the insertion end of the insertion rod (62) is in a reduced shape.
  9. 9. A sintering furnace with a preheating function according to claim 3, wherein the door plate (301) is connected with the heat preservation furnace (3) in an embedded sliding manner.
  10. 10. A sintering furnace with a preheating function according to claim 9, wherein the surfaces of the placing rack (203) and the holding table (4) are roughened.

Description

Sintering furnace with preheating function Technical Field The invention relates to the field of heat treatment equipment, in particular to a sintering furnace with a preheating function. Background The existing sintering furnace is divided into an intermittent sintering furnace and a continuous sintering furnace, the intermittent sintering furnace adopts a fully-closed structure, and can reach higher working temperature relative to the continuous sintering furnace, but the existing intermittent sintering furnace can only carry out sintering treatment in batches due to limited closed furnace chamber space, and has higher working temperature, so that the temperature rising and the temperature lowering of the existing intermittent sintering furnace are longer, further, the sintering treatment period of single batch of materials is long, if the materials are directly put into the high-temperature sintering furnace, the materials can be cracked due to transient internal stress of the materials caused by instant temperature rising, and then the sintering furnace needs to be gradually heated for preheating the materials every time, so that the existing intermittent sintering furnace is difficult to adapt to the industrial continuous production requirements of large batch and low cost. Disclosure of Invention In order to overcome the defects of long single-furnace production period and limited productivity caused by the fact that a large amount of time is consumed in the temperature raising and lowering process of the intermittent sintering furnace, the invention provides the sintering furnace with the preheating function. The sintering furnace comprises a sintering furnace body, a sealing cover, a heat preservation furnace, a bearing table, a material frame, a push-pull assembly, a moving assembly and a feeding assembly, wherein the sealing cover is connected to the sintering furnace body, a plurality of connecting strips are fixedly connected to the sealing cover in an annular mode, sealing plates are fixedly connected to one ends of all the connecting strips far away from the sealing cover together, the connecting strips and the sealing plates are located in the sintering furnace body, limiting rings used for limiting the positions of the sealing plates are fixedly connected to the sintering furnace body, the heat preservation furnace is mounted on the sintering furnace body, the heat preservation furnace is located on one side, connected with the sealing cover, of the sintering furnace body, the inner diameter of the heat preservation furnace is identical to the outer diameter of the sealing cover, a door plate is mounted on the heat preservation furnace, the moving assembly used for controlling opening and closing of the door plate is connected to the sintering furnace body, a plurality of cooling pipes are mounted on the heat preservation furnace, each cooling pipe penetrates into one connecting strip, the hollow connecting strip is communicated with the inside of the sintering furnace body, the bearing table is mounted on the heat preservation furnace body, the material frame is arranged in the sintering furnace body, the material frame is mounted on the connecting strips together, the connecting strips are mounted on the sealing plates and used for placing the push-pull assembly used for placing the material frame and the sealing assembly is connected to the moving the material frame. As a further preferable scheme, the push-pull assembly comprises an electric push rod and a connecting rod, wherein the electric push rod is arranged at the bottom of the heat preservation furnace, the connecting rod is fixedly connected with the telescopic end of the electric push rod, and the connecting rod penetrates into the heat preservation furnace to be fixedly connected with the sealing cover. As a further preferable scheme, the moving assembly comprises a first guide rail and a first electric slider, wherein the two first guide rails are arranged on the sintering furnace body, each first guide rail is connected with one first electric slider in a sliding manner, and all the electric sliders are fixedly connected with the door plate in a sharing manner and drive the door plate to slide to open and close. As a further preferable scheme, the feeding assembly comprises a support bracket, support columns, electric hydraulic rods, travelling wheels and a driving assembly, wherein the driving assembly is connected to the support table, the driving assembly is connected with two support brackets, the lower side of each support bracket is connected with two support columns, the electric hydraulic rods used for adjusting the distance are connected between the support brackets and each support column, the travelling wheels are arranged at the bottoms of the support columns, two lifting edges are fixedly connected to two sides of the material frame respectively, and the support brackets are in contact with the lifting edges. As