Degassing and impurity removing device of smelting furnace for producing high-thermal-conductivity silicon carbide

Abstract

The utility model discloses a degassing and impurity-removing device of a smelting furnace for high-thermal-conductivity silicon carbide production, which relates to the field of high-thermal-conductivity silicon carbide production and comprises a support and a hydraulic telescopic rod mounted on the left side of the upper end of the support in a penetrating manner, and a lifting platform is fixedly mounted at the output end of the hydraulic telescopic rod. A conveying pipe is installed at the middle end of the lifting platform in a penetrating mode, and a feeding bin is arranged at the upper end of the conveying pipe. According to the degassing and impurity-removing device of the smelting furnace for high-thermal-conductivity silicon carbide production, when the lifting platform descends, the lifting platform slides along the surface of the discharging rotating pipe and is limited through a baffle, and when degassing and impurity-removing are conducted on the interior of the closed smelting furnace, gas carrying impurities is conveyed upwards to the interior of a purification bin along a gas guide pipe in a closed cover; the use safety is improved, the filter plate can be conveniently detached and cleaned, the potential safety hazard caused by the fact that gas carrying impurities is inhaled by workers is avoided, and the influence on the health of the workers is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to high thermal conductivity silicon carbide production technical field, specifically to a kind of high thermal conductivity silicon carbide production is smelted furnace degassing and impurity removal device. BACKGROUND

[0002] When high thermal conductivity high-strength silicon carbide metal composite material of high-power heat dissipation device and IGBT module heat dissipation substrate is produced, smelting furnace will be used, and the outside of smelting furnace is often provided with a device for degassing and impurity removal to ensure the precision of the material after smelting.

[0003] In the prior art, the diffusion efficiency of the gas is not good, and the degassing and impurity removal cannot be carried out quickly, which easily wastes time.

[0004] In order to overcome the above-mentioned deficiencies, the prior art (publication number CN220376752U) discloses a zinc alloy smelting degassing and impurity removal device, which comprises a stand, a limiting groove is formed in the inside of the stand, and a linear motor is connected in the inside of the limiting groove, a support is installed on the opposite surface of the linear motor, and a control panel is installed on the top of the support, a servo motor is arranged outside the control panel, and a driving wheel is connected to the output shaft of the servo motor, a gas pump is arranged outside the servo motor, and an air inlet pipe is connected to one end of the gas pump. The control panel is provided, which facilitates the addition of nitrogen and powder deslagging agent, and has high automation degree; the deslagging agent is introduced into the zinc solution with nitrogen through the stirring rod, which is uniformly distributed in the solution, can fully and quickly react with the zinc alloy liquid, and under the action of stirring and nitrogen, the slag body can be quickly separated from the melt, rapidly floats up or sinks down, increases the deslagging effect, and improves the purity of the zinc alloy liquid.

[0005] Although the prior art can overcome the above-mentioned deficiencies, there are still other problems in the operation process, such as: the removed gas and impurities are dispersed in the air, which can easily cause safety hazards to the workers if inhaled for a long time, and is not conducive to the health of the workers. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a smelted furnace degassing and impurity removal device for high thermal conductivity silicon carbide production, to solve the problem that the removed gas and impurities are dispersed in the air, which can easily cause safety hazards to the workers if inhaled for a long time, and is not conducive to the health of the workers in the above background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A kind of high thermal conductivity silicon carbide production is used in smelting furnace degassing and impurity removal device, including support and the left side of hydraulic telescopic rod that support upper end is installed and is penetrated, and the output end of hydraulic telescopic rod is fixedly installed with lifting platform, and the middle end of lifting platform is penetrated with feed pipe, and the upper end of feed pipe is provided with feed bin;

[0008] It is characterized in that: the lower end of the feed pipe is connected with the lower discharge rotating pipe, and the outer side of the lower discharge rotating pipe is provided with an efficient degassing and impurity removal mechanism, and the efficient degassing and impurity removal mechanism is provided with a stirring rod, and the inner side of the stirring rod is fixedly installed at the lower end of the lower discharge rotating pipe.

[0009] The lower end of the lower discharge rotating pipe is penetrated with a closure cover, and the outer side of the closure cover is provided with a purification gas outlet impurity removal mechanism, and the purification gas outlet impurity removal mechanism is provided with a purification bin, and the lower end of the purification bin is fixedly installed at the right upper end of the lifting platform.

[0010] Further, the left side of the lifting platform penetrates the inside of the support, and the shape of the lifting platform is convex plate.

[0011] Further, the efficient degassing and impurity removal mechanism further includes an air charging pump fixedly installed on the surface of the lifting platform, and the right side output end of the air charging pump is embedded in the inside of the feed pipe, and the right end output end of the feed pipe is shaped as a downward "L" letter, and the right side output end inside of the feed pipe is provided with a check valve.

[0012] Further, the upper end of the lifting platform is fixedly installed with a servo motor, and the output end of the servo motor is fixedly installed with a driving rod, and the driving rod is provided through the lifting platform, and the lower end of the driving rod is provided with a transmission belt through a belt pulley, and the right side of the transmission belt is sleeved on the upper end of the lower discharge rotating pipe through a belt pulley.

[0013] Further, the upper end of the lower discharge rotating pipe is fixedly installed in the inside of a rotating shaft, and the outer side of the rotating shaft is fixedly installed at the lower end of the lifting platform, and the upper end of the lower discharge rotating pipe is located inside the lower end of the feed pipe.

[0014] Further, the purification gas outlet impurity removal mechanism further includes a baffle provided on the surface of the lower discharge rotating pipe, and the number of baffles is two, and the upper and lower baffles are located on the outside and inside of the closure cover, and the lower end of the closure cover is provided with a sealing gasket, and the shape of the sealing gasket is circular.

[0015] Further, the left side inside of the closure cover and the purification bin is communicated through a gas guide pipe, and the inside of the purification bin is nested with a filter plate, and the upper end outlet of the gas guide pipe is aligned with the left side surface of the filter plate.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The utility model provides a set with the component of being able to write off gas and impurity, in use, the height of lifting platform is adjusted on the support through hydraulic telescopic link, with the height adjustment, the material in the inside of smelting furnace is embedded in the material in the inside of smelting furnace, at this time, with the addition of the chemical reagent for removing impurity to the inside of smelting furnace by feeding bin and material conveying pipe, the gas in the material is discharged, and the impurity is carried out with the air injection in the inside of material by auxiliary air pump, is discharged with the stirring of stirring rod, the impurity is carried out and discharged with the gas removal, can facilitate the use of staff, can reduce the complexity of operation simultaneously.

[0018] 2. When the lifting platform is lowered, with the material in the inside of smelting furnace being embedded in the material in the inside of smelting furnace, the closed cover slides along the surface of the material conveying pipe after contacting the upper end of smelting furnace due to its shape, is positioned by baffle, the gas carrying impurity is transported to the inside of purification bin along the gas guide pipe in the inside of closed cover and carries the gas carrying impurity to the inside of purification bin when the inside of closed smelting furnace is removed gas and impurity, improve the safety of use, filter plate can also be conveniently disassembled and cleaned, avoid the gas carrying impurity being inhaled by staff and causing security risks, avoid the influence on the health of staff;

[0019] Further, the closed cover is closed by the weight of the upper end of smelting furnace under the action of sealing gasket, so as to realize the sealing effect, avoid the gas leakage, and ensure the upward conveying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is the utility model's view three-dimensional structure schematic diagram;

[0022] Figure 3 It is the utility model's view three-dimensional structure schematic diagram;

[0023] Figure 4 It is the utility model Figure 3 It is the utility model's view three-dimensional structure schematic diagram;

[0024] Figure 5 It is the utility model's view three-dimensional structure schematic diagram;

[0025] Figure 6 It is the utility model's view three-dimensional structure schematic diagram.

[0026] In the diagram: 1. Support frame; 2. Hydraulic telescopic rod; 3. Lifting platform; 4. Conveying pipe; 5. Feeding hopper; 6. Discharge rotating pipe; 7. Agitator; 8. Rotating shaft; 9. Air pump; 10. Servo motor; 11. Drive rod; 12. Transmission belt; 13. Closing cover; 14. Sealing gasket; 15. Baffle; 16. Purification chamber; 17. Filter plate; 18. Air guide pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: As Figures 1-3 The technical solution shown is a degassing and impurity removal device for a smelting furnace used in the production of high thermal conductivity silicon carbide. To solve the problem of inconvenient degassing and impurity removal, the device discloses: a support frame 1 and a hydraulic telescopic rod 2 installed through the upper left side of the support frame 1. A lifting platform 3 is fixedly installed at the output end of the hydraulic telescopic rod 2. A conveying pipe 4 is installed through the middle of the lifting platform 3. A feeding bin 5 is provided at the upper end of the conveying pipe 4, and a discharge rotating pipe 6 is connected to the lower end of the conveying pipe 4. A high-efficiency degassing and impurity removal mechanism is provided on the outside of the discharge rotating pipe 6. The high-efficiency degassing and impurity removal mechanism includes a stirring rod 7, the inner side of which is fixedly installed at the lower end of the discharge rotating pipe 6. The left side of the lifting platform 3 penetrates the interior of the support frame 1, and the lifting platform 3 is convex in shape. The high-efficiency degassing and impurity removal mechanism also includes a lifting... An air pump 9 is fixedly installed on the surface of the lifting platform 3, and the right output end of the air pump 9 is embedded inside the material conveying pipe 4. The right output end of the material conveying pipe 4 is shaped like a downward "L". A one-way valve is installed inside the right output end of the material conveying pipe 4. A servo motor 10 is fixedly installed on the upper end of the lifting platform 3, and a drive rod 11 is fixedly installed on the output end of the servo motor 10. The drive rod 11 passes through the lifting platform 3. A transmission belt 12 is sleeved on the lower end of the drive rod 11 through a pulley. The right side of the transmission belt 12 is sleeved on the upper end of the feeding rotating pipe 6 through a pulley. The upper end of the feeding rotating pipe 6 is fixedly installed inside the rotating shaft 8, and the outer side of the rotating shaft 8 is fixedly installed on the lower end of the lifting platform 3. The upper end of the feeding rotating pipe 6 is located inside the lower end of the material conveying pipe 4.

[0029] Equipped with components capable of degassing and removing impurities, the height of the lifting platform 3 is adjusted on the support 1 via the hydraulic telescopic rod 2. As the height is adjusted, the feeding rotating pipe 6 is embedded into the material inside the smelting furnace. At this time, chemical agents for removing impurities are added to the inside of the smelting furnace through the feeding bin 5 and the conveying pipe 4. The servo motor 10 is started, which drives the drive rod 11 to rotate. The rotation of the drive rod 11 drives the feeding rotating pipe 6 to rotate under the action of the rotating shaft 8 via the transmission belt 12. As the feeding rotating pipe 6 rotates, the stirring rod 7 stirs the material inside the smelting furnace, causing the gas inside the material to be discharged. At the same time, the auxiliary air pump 9 pumps gas into the material, which can carry away impurities and discharge them with the stirring rod 7. Degassing and impurity removal are carried away at the same time, which is convenient for operators and reduces the complexity of operation.

[0030] Example 2: Figures 1-6 The technical solution shown, based on Embodiment 1, discloses the following to address the problem that the exhaust gas carrying impurities may easily affect the health of workers: a closed cover 13 is installed through the lower end of the feeding rotating pipe 6, and a purification exhaust and impurity removal mechanism is provided on the outside of the closed cover 13. The purification exhaust and impurity removal mechanism is provided with a purification chamber 16, and the lower end of the purification chamber 16 is fixedly installed on the upper right side of the lifting platform 3. The purification exhaust and impurity removal mechanism also includes a baffle 15 provided on the surface of the feeding rotating pipe 6, and there are two baffles 15. The upper and lower baffles 15 are located on the outside and inside of the closed cover 13, and a sealing gasket 14 is provided at the lower end of the closed cover 13. The sealing gasket 14 is circular in shape. The upper end of the closed cover 13 is connected to the left interior of the purification chamber 16 through a duct 18. A filter plate 17 is nested inside the purification chamber 16, and the upper outlet of the duct 18 is aligned with the left surface of the filter plate 17.

[0031] As the lifting platform 3 descends, the material feeding rotating pipe 6 is embedded into the material inside the smelting furnace. Due to its shape, the closing cover 13 slides along the surface of the material feeding rotating pipe 6 after contacting the upper end of the smelting furnace. It is limited by the baffle 15, thereby closing the upper opening of the smelting furnace under the action of the sealing gasket 14. After the smelting furnace is closed, when degassing and impurity removal are carried out inside the closed cover 13, the gas carrying impurities is transported upward to the purification chamber 16 through the gas guide pipe 18 inside the closing cover 13. At this time, the gas is filtered by the filter plate 17 and discharged, improving the safety of use. The filter plate 17 can also be easily disassembled for cleaning, avoiding the safety hazards caused by the inhalation of gas carrying impurities by the staff and avoiding the impact on the health of the staff.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high thermal conductivity silicon carbide production smelting furnace degassing and impurity removal device, comprising a support (1) and a hydraulic telescopic rod (2) installed through the left side of the upper end of the support (1), and the output end of the hydraulic telescopic rod (2) is fixedly installed with a lifting platform (3), and the middle end of the lifting platform (3) is installed through a feeding pipe (4), and the upper end of the feeding pipe (4) is provided with a feeding bin (5); characterized in that The lower end of the feeding pipe (4) is connected with a discharging rotating pipe (6), and the outer side of the discharging rotating pipe (6) is provided with a high-efficiency degassing and impurity removal mechanism, and the high-efficiency degassing and impurity removal mechanism is provided with a stirring rod (7), and the inner side of the stirring rod (7) is fixedly installed at the lower end of the discharging rotating pipe (6); The lower end of the discharging rotating pipe (6) is installed through a closed cover (13), and the outer side of the closed cover (13) is provided with a purification gas outlet impurity removal mechanism, and the purification gas outlet impurity removal mechanism is provided with a purification bin (16), and the lower end of the purification bin (16) is fixedly installed at the right side of the upper end of the lifting platform (3).

2. The degassing and impurity removal device for a high thermal conductivity silicon carbide production smelting furnace according to claim 1, characterized in that: The left side of the lifting platform (3) penetrates through the inside of the support (1), and the shape of the lifting platform (3) is a convex plate.

3. The degassing and impurity removal device for a high thermal conductivity silicon carbide production smelting furnace according to claim 1, characterized in that: The high-efficiency degassing and impurity removal mechanism further comprises an air charging pump (9) fixedly installed on the surface of the lifting platform (3), and the right side output end of the air charging pump (9) is embedded in the inside of the feeding pipe (4), and the right end output end of the feeding pipe (4) is in the shape of a downward "L" character, and the right side output end inside of the feeding pipe (4) is provided with a check valve.

4. The gas and impurity removal device for a high thermal conductivity silicon carbide production smelting furnace according to claim 3, characterized in that: The upper end of the lifting platform (3) is fixedly installed with a servo motor (10), and the output end of the servo motor (10) is fixedly installed with a driving rod (11), and the driving rod (11) penetrates through the lifting platform (3), and the lower end of the driving rod (11) is provided with a transmission belt (12) through a belt pulley, and the right side of the transmission belt (12) is provided with a belt pulley on the upper end of the discharging rotating pipe (6).

5. The gas and impurity removal device for a high thermal conductivity silicon carbide production smelting furnace according to claim 4, characterized in that: The upper end of the discharging rotating pipe (6) is fixedly installed in the inside of a rotating shaft (8), and the outer side of the rotating shaft (8) is fixedly installed at the lower end of the lifting platform (3), and the upper end of the discharging rotating pipe (6) is located in the inside of the lower end of the feeding pipe (4).

6. The degassing and impurity removal device for a high thermal conductivity silicon carbide production smelting furnace according to claim 1, characterized in that: The purification gas outlet impurity removal mechanism further comprises a baffle (15) provided on the surface of the discharging rotating pipe (6), and the number of the baffle (15) is two, and the upper and lower baffles (15) are located on the outside and inside of the closed cover (13), and the lower end of the closed cover (13) is provided with a sealing gasket (14), and the sealing gasket (14) is in the shape of a circle.

7. The gas and impurity removal device for a high thermal conductivity silicon carbide production smelting furnace according to claim 6, characterized in that: The upper end of the closed cover (13) and the left side inside of the purification bin (16) are communicated through an air guide pipe (18), and the inside of the purification bin (16) is nested with a filter plate (17), and the upper end outlet of the air guide pipe (18) is aligned with the left side surface of the filter plate (17).

Images