Search

CN-224230682-U - Vacuum pressurizing and sintering integrated device for silicon carbide sealing ring

CN224230682UCN 224230682 UCN224230682 UCN 224230682UCN-224230682-U

Abstract

The utility model relates to the technical field of silicon carbide sintering, in particular to a vacuum pressurized sintering integrated device of a silicon carbide sealing ring, which comprises a furnace body, wherein a combustion bin is arranged in the furnace body, an annular cavity is formed between the combustion bin and the inner wall of the furnace body, a sewage draining groove is formed in the bottom wall of the combustion bin, a waste discharging pipeline is fixedly connected to the furnace body, one end of the waste discharging pipeline is communicated with the annular cavity, the other end of the waste discharging pipeline is used for being connected with an external dust collecting device, a dust collecting assembly is arranged below the combustion bin and comprises an elastic piece, the lower end of the elastic piece is fixed in the furnace body, a baffle plate is sleeved on the elastic piece in a sliding manner and is abutted against the sewage draining groove tightly under the elastic force of the elastic piece, wherein when the external dust collecting device is started and negative pressure is generated in the annular cavity, the negative pressure acts on the baffle plate to overcome the elastic piece to move down so as to expose the sewage draining groove, and the material slag in the combustion bin falls into the bottom of the furnace body through the sewage draining groove and is sucked into the annular cavity and discharged through the waste discharging pipeline, so that automatic slag removal is realized.

Inventors

  • DING XIAODONG
  • Ding Chenming

Assignees

  • 江苏三田密封科技有限公司

Dates

Publication Date
20260512
Application Date
20250610

Claims (7)

  1. 1. The vacuum pressurized sintering integrated device for the silicon carbide sealing ring comprises a furnace body (100) and is characterized in that a combustion bin (120) is arranged in the furnace body (100), an annular cavity is formed between the combustion bin (120) and the inner wall of the furnace body (100), and a sewage draining groove (121) is formed in the bottom wall of the combustion bin (120); A waste discharge pipeline (230) is fixedly connected to the furnace body (100), one end of the waste discharge pipeline (230) is communicated with the annular cavity, and the other end of the waste discharge pipeline is used for being connected with an external dust collection device; a dust collection assembly (200) is arranged below the combustion bin (120), and the dust collection assembly (200) comprises an elastic piece (220) and a baffle (210), wherein the lower end of the elastic piece is fixed in the furnace body (100), the baffle is sleeved on the elastic piece (220) in a sliding manner, and the baffle is tightly abutted upwards to seal the sewage draining groove (121) under the elastic action of the elastic piece (220); When the external dust collection device is started and negative pressure is generated in the annular cavity, the negative pressure acts on the baffle plate (210) to overcome the elasticity of the elastic piece (220) so as to enable the baffle plate to move downwards, so that the blowdown tank (121) is exposed, and slag in the combustion bin (120) falls into the bottom of the furnace body (100) through the blowdown tank (121) and is sucked into the annular cavity and discharged from the waste discharge pipeline (230), so that automatic slag removal is realized.
  2. 2. The integrated vacuum pressure sintering device for the silicon carbide sealing ring according to claim 1, wherein one end of the furnace body (100) is hinged with an openable furnace door (110).
  3. 3. The vacuum pressure sintering integrated device of the silicon carbide sealing ring of claim 1, wherein a support bracket (130) is fixedly connected to the bottom of the furnace body (100).
  4. 4. The vacuum pressure sintering integrated device of the silicon carbide sealing ring of claim 1, wherein the baffle plate (210) is made of a high-temperature alloy material, and the area of the part of the baffle plate (210) covering the sewage draining groove (121) is larger than the opening area of the sewage draining groove (121).
  5. 5. The vacuum pressure sintering integrated device of a silicon carbide sealing ring according to claim 1, wherein the elastic member (220) is a high temperature resistant compression spring.
  6. 6. The vacuum pressurized sintering integrated device of the silicon carbide sealing ring of claim 1, wherein the outer surface of the combustion chamber (120) is fixedly connected with a supporting plate (140), the other end of the supporting plate (140) is fixedly connected with the inner surface of the furnace body (100), and an annular cavity is formed between the combustion chamber (120) and the furnace body (100).
  7. 7. The vacuum pressure sintering integrated device of the silicon carbide sealing ring of claim 1, wherein a quick connector is arranged at the joint of the waste discharge pipeline (230) and the external dust collection device, so that the quick connector is convenient to connect and disconnect.

Description

Vacuum pressurizing and sintering integrated device for silicon carbide sealing ring Technical Field The utility model relates to the technical field of silicon carbide sintering, in particular to a vacuum pressurizing and sintering integrated device of a silicon carbide sealing ring. Background Silicon carbide sealing rings take an important role in the fields of high-end sealing such as petrochemical industry, aerospace and the like by virtue of excellent high-temperature resistance, wear resistance and chemical stability. The vacuum pressure sintering process adopted in the production process is carried out in a high-temperature environment with the temperature of more than 1600 ℃, and volatile matters and impurities in the raw materials can form solid slag in the sintering process and are continuously deposited in the combustion bin. The slag removal process of the traditional sintering device has obvious technical bottlenecks that on one hand, equipment needs to be subjected to a complete cooling period of several hours to tens of hours due to the high-temperature environment in the furnace, so that the utilization rate of the equipment is insufficient, and on the other hand, operators need to open a furnace door to manually clean up the high Wen Liaozha, so that occupational risks such as burning, dust suction and the like are faced. The operation mode not only causes the production line to run due to cooling and slag removal interruption, greatly reduces the production efficiency, but also has potential safety hazards such as high-temperature scalding, dust suction and the like. In addition, the intervention of external oxygen and dust in the furnace opening process can also cause secondary pollution risks of product oxidation or purity reduction, and the continuous production and quality stability of the silicon carbide sealing ring are seriously restricted. In view of the foregoing, there is a need for a silicon carbide seal ring vacuum pressure sintering integrated device that ameliorates the deficiencies of the prior art. Disclosure of utility model The utility model aims to provide a silicon carbide sealing ring vacuum pressurizing sintering integrated device, negative pressure generated by an external dust collection device is transmitted to an annular cavity through a waste discharge pipeline, a baffle plate is triggered to move downwards instantaneously, a pollution discharge groove on the wall surface of a combustion bin is opened, the height Wen Liaozha falls into the furnace bottom under the dual actions of gravity and suction force, and is sucked into the waste discharge pipeline by negative pressure to be discharged directionally, so that the problems in the background art are solved, namely: The silicon carbide sealing ring inevitably produces raw slag in vacuum pressure sintering, the traditional manual slag removal mode needs to be subjected to a complete cooling period of several hours to tens of hours due to the high-temperature environment in the furnace, so that the utilization rate of the equipment is insufficient, operators need to open the furnace door to manually clean up Wen Liaozha, and the occupational risks such as burning, dust suction and the like are faced. In order to achieve the aim, the utility model provides a silicon carbide sealing ring vacuum pressurized sintering integrated device, which comprises a furnace body, wherein a combustion bin is arranged in the furnace body, an annular cavity is formed between the combustion bin and the inner wall of the furnace body, and a sewage draining groove is formed in the bottom wall of the combustion bin; The furnace body is fixedly connected with a waste discharge pipeline, one end of the waste discharge pipeline is communicated with the annular cavity, and the other end of the waste discharge pipeline is used for being connected with an external dust collection device; The dust collection assembly comprises an elastic piece, a baffle plate, a sealing plate and a dust collection device, wherein the lower end of the elastic piece is fixed in the furnace body; When the external dust collection device is started and negative pressure is generated in the annular cavity, the negative pressure acts on the baffle plate to overcome the elasticity of the elastic piece so as to enable the baffle plate to move downwards, so that the blowdown tank is exposed, and the slag in the combustion bin falls into the bottom of the furnace body through the blowdown tank and is sucked into the annular cavity and discharged through the waste discharge pipeline, so that automatic slag removal is realized. In the technical scheme, negative pressure is conducted into the annular cavity through the waste discharge pipeline, the negative pressure acts on the baffle plate sleeved on the elastic piece in a sliding mode, the baffle plate overcomes the elasticity of the elastic piece to enable the baffle plate to move downwards, and therefore a sewage drai