A silicon carbide grouting and stirring device

Abstract

The present invention relates to the technical field of silicon carbide grouting, and specifically relates to a silicon carbide grouting stirring device, which includes a base. The upper end surface of the base is fixedly installed with a stirring tank through a provided support frame. A sealing cover is arranged on the upper end surface of the stirring tank, and a stirring mechanism is arranged on the sealing cover. An actuating mechanism that cooperates with the stirring mechanism is arranged in the stirring tank. The stirring mechanism and the actuating mechanism cooperate to perform synchronous stirring on the silicon carbide slurry at the center and the outside. Through the combined use of the provided stirring mechanism, actuating mechanism and grouting mechanism, the operation model of combining internal and external stirring, up-and-down grouting and inner wall scraping is adopted to complete the preparation of the silicon carbide slurry, ensuring that the silicon carbide slurry is effectively and fully mixed. At the same time, the method of injecting liquid synchronously in two dimensions, up and down, is used to accelerate the contact and dispersion of the liquid and the silicon carbide powder, promote the rapid and effective exchange and mixing of the materials, and avoid the adhesion of silicon carbide to the tank side wall by scraping the inner wall, thereby significantly improving the stirring effect through multiple aspects of synthesis.

Description

Technical Field

[0001] The present invention relates to the technical field of silicon carbide grouting, and particularly to a silicon carbide grouting stirring device. Background Art

[0002] Silicon carbide is an inorganic non-metallic material with extremely high hardness, which is synthesized by mixing sand and graphite under high temperature conditions; and silicon carbide grouting is a process method of mixing silicon carbide particles with a binder, and then injecting them into a mold or void, and forming a silicon carbide product with a complex shape after curing treatment. Since it is necessary to ensure the uniformity and fluidity of the mixture in the silicon carbide slurry before grouting to ensure the quality and performance of the final product, stirring operations are usually carried out to ensure the full mixing of silicon carbide powder and binder, so as to prepare high-quality silicon carbide composite materials.

[0003] Currently, there are the following disadvantages when stirring silicon carbide: 1. When stirring the silicon carbide slurry, it is necessary to first introduce the silicon carbide powder into the stirring tank, then introduce the liquid binder from above the stirring tank, and then rotate the central shaft rod to drive the central paddle to rotate, so as to stir the silicon carbide slurry. In the above operation, the stirring is mainly concentrated in the central part of the stirring tank, while the stirring force in the side wall area of the stirring tank is insufficient, which easily leads to uneven distribution of silicon carbide particles and binder, affecting the consistency and quality of the final product, and the silicon carbide particles in the insufficient stirring area are prone to agglomeration, affecting the mechanical strength and durability of the product; 2. When introducing the liquid binder into the silicon carbide powder, it is usually injected from top to bottom, which will cause the first contacted silicon carbide powder to mix with a large amount of binder, forming a slurry with a locally high concentration. This uneven concentration distribution will affect the subsequent mixing effect and the performance of the final product; 3. After the stirring is completed, due to the certain viscosity of the silicon carbide slurry, it is easy to cause some slurry to adhere to the side wall of the tank, which is not easy to clean and will affect the stirring efficiency. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a silicon carbide grouting stirring device, which is achieved by the following specific technical means: A silicon carbide grouting stirring device includes a base, the upper end surface of the base is fixedly installed with a stirring tank through a set support frame, the upper end surface of the stirring tank is provided with a sealing cover, the sealing cover is provided with a stirring mechanism, the stirring tank is provided with an execution mechanism that cooperates with the stirring mechanism, and the stirring mechanism and the execution mechanism cooperate to perform synchronous stirring on the central and outer sides of the silicon carbide slurry.

[0005] The actuator includes a support part arranged in the mixing tank, a sliding part connected to the support part, and a switching part. The sliding part includes limiting plates symmetrically arranged and provided with a plurality of material-passing grooves. The switching part includes a sliding plate slidably arranged between the symmetrical limiting plates. One side of the sliding plate is provided with a scraping plate for scraping silicon carbide on the inner wall of the mixing tank, and the other side is provided with a plurality of matching grooves.

[0006] The mixing mechanism includes a mixing part for centrally mixing the silicon carbide slurry and a driving part for providing power to the mixing mechanism and the actuator. The driving part and the support part are jointly provided with triangular frames distributed up and down, and the triangular frames are used to provide a triangular prism type of stable support to the mixing mechanism and the actuator.

[0007] The mixing device further includes a grouting mechanism arranged on the mixing tank for injecting slurry into the mixing tank synchronously at two points up and down. The grouting mechanism includes a grouting part arranged on the mixing tank and a slurry discharging part arranged on the base and used for discharging the silicon carbide slurry in the mixing tank.

[0008] As a preferred technical solution of the present invention, the driving part is arranged on the sealing cover. The driving part includes a central shaft rod installed through the center of the lower end face of the sealing cover by a bearing and located in the mixing tank. The upper end face of the sealing cover is fixedly installed with a motor through a motor seat, and the output end of the motor is fixedly connected to the upper end of the central shaft rod.

[0009] As a preferred technical solution of the present invention, the mixing part includes propeller blades fixedly installed on the outer wall of the central shaft rod and located between the triangular frames distributed up and down. A plurality of mixing blades are fixedly installed on the propeller blades and evenly distributed along their contours.

[0010] As a preferred technical solution of the present invention, the support part includes a ring slide rail fixedly installed at the upper end of the inner wall of the mixing tank. Three support sliders evenly distributed along the circumference thereof are slidably installed in the ring slide rail. The lower ends of the support sliders are fixedly installed with electric guide rails, and positioning columns are fixedly installed on the upper end face of the electric guide rails on the side far away from the corresponding support sliders.

[0011] As a preferred technical solution of the present invention, the sliding part further includes limiting chutes. The limiting plates are fixedly installed on the electric guide rails and are symmetric about the center of the corresponding electric guide rails. The material-passing grooves are opened on the side wall of the limiting plates far away from the central shaft rod and are linearly distributed from top to bottom. A plurality of limiting chutes are jointly and evenly opened on the side walls of the two limiting plates on the same electric guide rail close to each other from top to bottom. Positioning blocks are jointly fixedly installed at the lower ends of the two limiting plates on the same electric guide rail.

[0012] As a preferred technical solution of the present invention, the switching part further includes a limiting slider. The sliding plate is fixedly installed at the movable end of the electric guide rail. The matching groove is opened on one side wall of the sliding plate close to the central shaft rod and is vertically staggered with the material passing groove. A limiting slider slidably connected to the corresponding limiting chute is fixedly installed on the sliding plate. The scraping plate is fixedly installed on the side wall of the sliding plate away from the central shaft rod.

[0013] As a preferred technical solution of the present invention, the actuating mechanism further includes an actuating part for synchronously stirring the silicon carbide slurry near the inner ring wall of the mixing tank. The actuating part includes a plurality of support rods fixedly installed on one side wall of the sliding plate close to the central shaft rod in a linear array from top to bottom. The end of the support rod away from the corresponding sliding plate is fixedly installed with a side paddle.

[0014] As a preferred technical solution of the present invention, the grouting part includes an upper ring pipe fixedly installed at the upper end of the outer ring wall of the mixing tank. A plurality of upper through pipes communicating with the upper ring pipe are uniformly distributed along the circumference at the upper end of the inner ring wall of the mixing tank. A lower ring pipe is fixedly installed at the lower end of the outer ring wall of the mixing tank. A plurality of lower through pipes communicating with the lower ring pipe are uniformly distributed along the circumference at the lower end of the inner ring wall of the mixing tank. A one-way valve is fixedly installed in the lower through pipe. The upper ring pipe and the lower ring pipe are communicated through a T-shaped connecting pipe provided.

[0015] As a preferred technical solution of the present invention, the slurry discharging part includes an L-shaped discharging pipe fixedly installed at the center of the lower end surface of the mixing tank and communicating with the inside of the mixing tank. A suction pump with a suction end fixedly connected to the discharging end of the L-shaped discharging pipe is fixedly installed on the upper end surface of the base. The discharging end of the suction pump is fixedly installed with a slurry discharging pipe, and a communication valve is provided on the slurry discharging pipe.

[0016] As a preferred technical solution of the present invention, the electric guide rail is not on any radial extension line of the mixing tank. Connecting rings are fixedly sleeved on the outer ring wall of the central shaft rod and are distributed up and down. The connecting rings correspond to the triangular frames one by one. The connecting rings are fixedly connected to the corresponding triangular frames through connecting rods arranged on the diagonals of the triangular frames. The upper ends of the three positioning columns all penetrate through the included angles of the upper triangular frame and are fixedly connected to the triangular frame. The lower end surfaces of the three positioning blocks are all fixedly connected to the lower triangular frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. For this silicon carbide grouting and stirring device, through the combined use of the stirring mechanism, the actuating mechanism and the grouting mechanism, an operation model combining internal and external stirring, up-and-down grouting and inner wall scraping is adopted to complete the preparation of silicon carbide slurry. While ensuring that the silicon carbide slurry is effectively and fully mixed, the method of injecting liquid synchronously in two dimensions, up and down, is used to accelerate the contact and dispersion of the liquid and silicon carbide powder, promote the rapid and effective exchange and mixing of materials, and avoid the adhesion of silicon carbide to the tank side wall by scraping the inner wall. Thus, the stirring effect is significantly improved comprehensively in multiple aspects, silicon carbide slurry with more stable quality and better performance is obtained, and the utilization rate of silicon carbide slurry is increased.

[0018] 2. For this silicon carbide grouting and stirring device, through the combined use of the stirring mechanism and the actuating mechanism, the inner and outer sides of the silicon carbide slurry can be stirred synchronously during stirring, effectively eliminating the stirring dead zone, ensuring that the slurry is fully mixed in the entire stirring tank, improving the performance consistency of the final product, and when discharging, the state of the actuating mechanism can be converted to scrape the slurry adhering to the inner wall of the stirring tank, reducing the problem of silicon carbide slurry sticking to the wall and improving the utilization rate of materials.

[0019] 3. For this silicon carbide grouting and stirring device, through the grouting mechanism provided, liquid can be injected synchronously up and down, forming liquid flow at different depths of the slurry, promoting the material exchange and mixing between the upper and lower layers, thereby improving the overall uniformity of the slurry. And injecting liquid synchronously up and down can form multiple mixing regions in the slurry, accelerating the contact and dispersion of the liquid and silicon carbide powder, significantly shortening the mixing time, and improving the production efficiency.

[0020] 4. For this silicon carbide grouting and stirring device, the triangular frames distributed up and down provide a triangular prism-shaped stable support for the stirring mechanism and the actuating mechanism. The triangular prism-shaped arrangement can significantly improve the rigidity of the support structure, reduce the deformation and displacement of the equipment under high load conditions, and can effectively offset the vibration and unbalanced forces generated during the stirring process, ensuring the stability of the equipment operation, and thus facilitating the improvement of the stirring effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram when the present invention is working.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the grouting mechanism of the present invention.

[0023] Figure 3 It is a cross-sectional schematic diagram of a part of the structure of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the cooperation between the stirring mechanism and the actuating mechanism of the present invention.

[0025] Figure 5 Schematic three-dimensional structure diagram of the actuator of the present invention.

[0026] Figure 6 Partial structural schematic diagram of the switching part and the actuating part of the present invention.

[0027] Figure 7 Schematic diagram of the change process of the position between the sliding plate and the limiting plate of the present invention.

[0028] In the figure: 1, base; 2, stirring tank; 3, sealing cover; 4, stirring mechanism; 41, driving part; 411, central shaft rod; 412, motor; 42, stirring part; 421, propeller blade; 422, stirring paddle; 5, actuator; 51, supporting part; 511, annular slide rail; 512, supporting slider; 513, electric guide rail; 514, positioning column; 52, sliding part; 521, limiting plate; 522, material passing groove; 523, limiting chute; 53, switching part; 531, sliding plate; 532, mating groove; 533, limiting slider; 534, scraping plate; 54, actuating part; 541, support rod; 542, side paddle; 6, grouting mechanism; 61, grouting part; 611, upper ring pipe; 612, upper through pipe; 613, lower ring pipe; 614, lower through pipe; 62, slurry discharging part; 621, L-shaped discharge pipe; 622, suction pump; 623, slurry discharge pipe; 624, connecting valve; 7, tripod; 71, connecting ring; 72, connecting rod. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , a silicon carbide grouting and stirring device, including a base 1. The upper end surface of the base 1 is fixedly installed with a stirring tank 2 through a provided support frame. A sealing cover 3 is arranged on the upper end surface of the stirring tank 2. A stirring mechanism 4 is arranged on the sealing cover 3. An actuator 5 cooperating with the stirring mechanism 4 is arranged in the stirring tank 2; the stirring mechanism 4 includes a driving part 41 arranged on the sealing cover 3 and providing power for the stirring mechanism 4 and the actuator 5, and a stirring part 42 for stirring the silicon carbide slurry is arranged on the driving part 41.

[0031] Please refer to Figure 1 and Figure 3, the actuating mechanism 5 includes a supporting part 51 disposed within the mixing tank 2. A sliding part 52 is arranged on the supporting part 51, and a switching part 53 for cooperating with the mixing part 42 to stir and scrape the silicon carbide slurry on the inner wall of the mixing tank 2 is arranged on the sliding part 52. The supporting part 51 cooperates with the sliding part 52 to convert the execution state of the switching part 53. An actuating part 54 for synchronously stirring the silicon carbide slurry near the inner wall of the mixing tank 2 is arranged on the switching part 53. Tripods 7 distributed vertically are commonly arranged on the driving part 41 and the supporting part 51. The mixing mechanism 4 cooperates with the actuating mechanism 5 to synchronously stir the center and the outside of the silicon carbide slurry. The tripods 7 distributed vertically provide a triangular prism-shaped stable support for the mixing mechanism 4 and the actuating mechanism 5.

[0032] Please refer to Figure 1 and Figure 2 , a grouting mechanism 6 for injecting slurry into the mixing tank 2 synchronously up and down is arranged on the mixing tank 2; the grouting mechanism 6 includes a grouting part 61 arranged on the mixing tank 2, and a slurry discharging part 62 for discharging the silicon carbide slurry in the mixing tank 2 is arranged on the base 1.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , the driving part 41 includes a central shaft rod 411 which is installed through the center of the lower end face of the sealing cover 3 by means of a bearing and is located within the mixing tank 2. A motor 412 with an output end fixedly connected to the upper end of the central shaft rod 411 is fixedly installed on the upper end face of the sealing cover 3 through a motor base arranged.

[0034] Please refer to Figure 3 and Figure 4 , the mixing part 42 includes propeller blades 421 fixedly installed on the outer wall of the central shaft rod 411 and located between the tripods 7 distributed vertically. A number of mixing blades 422 are fixedly installed on the propeller blades 421 and are evenly distributed along their contours.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , the grouting part 61 includes an upper ring pipe 611 fixedly installed at the upper end of the outer wall of the mixing tank 2. A number of upper through pipes 612 communicating with the upper ring pipe 611 are evenly distributed along the circumference at the upper end of the inner wall of the mixing tank 2. A lower ring pipe 613 is fixedly installed at the lower end of the outer wall of the mixing tank 2. A number of lower through pipes 614 communicating with the lower ring pipe 613 are evenly distributed along the circumference at the lower end of the inner wall of the mixing tank 2. A one-way valve (not shown in the figure) is fixedly installed in the lower through pipes 614. The upper ring pipe 611 and the lower ring pipe 613 are communicated through a T-shaped connecting pipe arranged.

[0036] During specific operation, first, silicon carbide is introduced into the stirring tank 2. Then, the external liquid pump is started to inject the liquid binder into the upper ring pipe 611 and the lower ring pipe 613 through the T-shaped connecting pipe, so that the liquid binder enters the stirring tank 2 through the upper connecting pipe 612 and the lower connecting pipe 614 respectively. The one-way valve in the lower connecting pipe 614 ensures that the slurry in the stirring tank 2 will not flow out from the lower connecting pipe 614, thereby injecting the binder into the silicon carbide slurry synchronously from top and bottom, promoting the material exchange and mixing between the upper and lower layers, and improving the overall uniformity of the slurry.

[0037] Subsequently, the motor 412 is started to rotate the central shaft rod 411, and then the central shaft rod 411 drives the propeller blade 421 and the stirring blade 422 to stir and mix the silicon carbide slurry at the center inside the stirring tank 2.

[0038] Please refer to Figure 3 and Figure 4 , the supporting part 51 includes a ring slide rail 511 fixedly installed at the upper end of the inner ring wall of the stirring tank 2. The ring slide rail 511 is located below the upper connecting pipe 612. Three supporting sliders 512 evenly distributed along its circumference are slidably installed in the ring slide rail 511. An electric guide rail 513 is fixedly installed at the lower end of the supporting slider 512. A positioning column 514 is fixedly installed on the upper end surface of the electric guide rail 513 on the side far from the corresponding supporting slider 512.

[0039] Please refer to Figure 3 , Figure 4 and Figure 5 , the sliding part 52 includes limiting plates 521 fixedly installed on the electric guide rail 513 and symmetrically arranged about the center of the corresponding electric guide rail 513. A plurality of material passing grooves 522 are formed in a linear array from top to bottom on the side wall of the limiting plate 521 far from the central shaft rod 411. A plurality of limiting sliding grooves 523 are evenly formed from top to bottom on the side walls of the two limiting plates 521 on the same electric guide rail 513 close to each other. A positioning block is fixedly installed at the lower ends of the two limiting plates 521 on the same electric guide rail 513.

[0040] Please refer to Figure 3 , Figure 5 and Figure 6 , the switching part 53 includes a sliding plate 531 fixedly installed at the mobile end of the electric guide rail 513 and located between the corresponding two limiting plates 521. A matching groove 532 staggered up and down with the material passing grooves 522 is formed on the side wall of the sliding plate 531 close to the central shaft rod 411. A limiting slider 533 slidably connected with the corresponding limiting sliding groove 523 is fixedly installed on the sliding plate 531. A scraping plate 534 is fixedly installed on the side wall of the sliding plate 531 far from the central shaft rod 411.

[0041] Please refer to Figure 3 , Figure 5 and Figure 6, the execution unit 54 includes a number of support rods 541 fixedly installed on the side wall of the skateboard 531 close to the central shaft rod 411 in a linear array from top to bottom. One end of the support rod 541 away from the corresponding skateboard 531 is fixedly installed with a side paddle 542.

[0042] Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the electric guide rail 513 is not on any radial extension line of the mixing tank 2. A connecting ring 71 is fixedly sleeved on the outer ring wall of the central shaft rod 411 and is distributed up and down. The connecting ring 71 corresponds to the triangular frame 7 one by one. The connecting ring 71 is fixedly connected to the corresponding triangular frame 7 through a connecting rod 72 arranged on the diagonal of the triangular frame 7. The upper ends of the three positioning columns 514 all penetrate through the included angle of the upper triangular frame 7 and are fixedly connected to the triangular frame 7. The lower end faces of the three positioning blocks are all fixedly connected to the lower triangular frame 7.

[0043] During specific operation, during the process of the mixing mechanism 4 mixing the silicon carbide slurry in the central part, the central shaft rod 411 will drive the triangular frame 7 to rotate through the connecting ring 71 and the connecting rod 72, so as to drive the three support sliders 512 to rotate synchronously in the ring slide rail 511 through the triangular frame 7. At this time, the skateboard 531 is located on the side of the electric guide rail 513 close to the central shaft rod 411. The matching groove 532 on the skateboard 531 and the corresponding material passing groove 522 are in a state of being back to back. The support slider 512 will drive the corresponding skateboard 531 and the limiting plate 521 to rotate around the central shaft rod 411 with the central shaft rod 411 as the axis. At this time, the skateboard 531 and the side paddle 542 will mix the silicon carbide slurry located at the side wall of the mixing tank 2, and cooperate with the propeller blade 421 and the mixing blade 422 to mix the silicon carbide slurry in the center of the mixing tank 2, realizing synchronous mixing of the inner and outer sides of the silicon carbide slurry, ensuring that the slurry is fully mixed in the entire mixing tank 2, and improving the performance consistency of the final product.

[0044] It should be noted that during the process of the skateboard 531 and the limiting plate 521 rotating to mix the silicon carbide slurry, the corresponding material passing groove 522 and the matching groove 532 will reduce the direct impact area of the silicon carbide slurry on the skateboard 531 and the limiting plate 521. At the same time, due to the arrangement of the material passing groove 522 and the matching groove 532, the corresponding convex parts of the skateboard 531 and the limiting plate 521 also have a stirring effect and stir the silicon carbide slurry during the rotation process.

[0045] And during the stirring process, since the electric guide rail 513 is not on any radial extension line of the stirring tank 2, the electric guide rail 513, together with the sliding plate 531, the limiting plate 521 and the side paddle 542, is in an offset state. Therefore, when stirring the silicon carbide slurry at the side wall of the stirring tank 2, it will not directly bear the pressure of the silicon carbide slurry, thus extending the service life of the equipment. And during the stirring process, a certain axial flow will be generated, promoting the circulation and exchange of the upper and lower layers of the slurry, helping to break the laminar flow state in the slurry, improving the mixing effect, and obtaining a more uniform silicon carbide slurry.

[0046] Meanwhile, during the stirring of the silicon carbide slurry by the central shaft rod 411 with the actuator 5 and the stirring mechanism 4, the upper and lower tripod 7 and the actuator 5 form a triangular prism type stable support. Therefore, during the stirring process, the deformation and displacement of the equipment under high load conditions can be reduced, and the vibration and unbalanced force generated during the stirring process can be effectively offset.

[0047] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 , the slurry discharging part 62 includes an L-shaped discharging pipe 621 fixedly installed at the center of the lower end face of the stirring tank 2 and communicating with the inside of the stirring tank 2. A one-way valve (not shown in the figure) is provided in the L-shaped discharging pipe 621. A suction pump 622 with its suction end fixedly connected to the discharging end of the L-shaped discharging pipe 621 is fixedly installed on the upper end face of the base 1. A slurry discharging pipe 623 is fixedly installed at the discharging end of the suction pump 622, and a communicating valve 624 is provided on the slurry discharging pipe 623.

[0048] During specific operation, when the stirring of the silicon carbide slurry is completed, start the suction pump 622 and open the communicating valve 624 and the one-way valve in the L-shaped discharging pipe 621, so that the suction pump 622 extracts and discharges the silicon carbide slurry from the stirring tank 2 through the L-shaped discharging pipe 621.

[0049] At the same time, start the electric guide rail 513 to make its moving end drive the sliding plate 531 to move towards the side wall of the stirring tank 2. During this process, the two limiting plates 521 on the same electric guide rail 513 gradually block the corresponding matching grooves 532, and the sliding plate 531 gradually blocks the material passing grooves 522 on the corresponding limiting plates 521. Finally, the sliding plate 531 drives the scraping plate 534 to fit with the inner ring wall of the stirring tank 2. At this time, the two limiting plates 521 and the sliding plate 531 form a complete scraping vertical plate, and the two limiting plates 521 stably support the corresponding sliding plates 531. Subsequently, by rotating the stirring mechanism 4 with the actuator 5, the slurry attached to the inner wall of the stirring tank 2 can be scraped, thereby reducing the problem of silicon carbide slurry sticking to the wall and improving the utilization rate of materials.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicon carbide grouting and stirring device, comprising a base, wherein a stirring tank is fixedly installed on the upper end surface of the base through a provided support frame, and a sealing cover is arranged on the upper end surface of the stirring tank, and is characterized in that: A stirring mechanism is provided on the sealing cover, and an actuating mechanism cooperating with the stirring mechanism is provided in the stirring tank; The actuating mechanism includes a support portion provided in the stirring tank, a sliding portion connected to the support portion, and a switching portion; the sliding portion includes symmetrically arranged limiting plates, and a plurality of linearly distributed material-passing grooves are formed from top to bottom on a side wall of the limiting plate away from the center of the sealing cover; the switching portion includes a sliding plate provided between the symmetrically arranged limiting plates and having a scraping plate, and a mating groove staggered up and down with the material-passing groove is formed on a side wall of the sliding plate close to the center of the sealing cover; When the sliding plate is moved between the symmetrically arranged limiting plates through the support portion, that is, when the symmetrically arranged limiting plates and the corresponding sliding plate are closed, the scraping plate scrapes the silicon carbide on the inner wall of the stirring tank; when the symmetrically arranged limiting plates and the corresponding sliding plate are unfolded from each other, the scraping plate, the sliding plate and the limiting plates cooperate to stir the silicon carbide slurry on the outside, and the corresponding material-passing grooves and the mating grooves reduce the direct impact area of the silicon carbide slurry on the sliding plate and the limiting plates; The stirring mechanism includes a stirring portion and a driving portion that provides power for the stirring mechanism and the actuating mechanism; the stirring portion includes a propeller blade and a plurality of stirring blades fixedly installed thereon, and the stirring portion performs central stirring on the silicon carbide slurry; Tripods are commonly provided on the driving portion and the support portion and are distributed up and down. During stirring, the tripods are used to provide a triangular prism-shaped stable support for the stirring mechanism and the actuating mechanism; The support portion includes an electric guide rail, and the limiting plates are fixedly installed on the electric guide rail. The electric guide rail is not on any radial extension line of the stirring tank, so that the sliding plate and the limiting plates are both in an offset state; A grouting mechanism, which is provided on the stirring tank and is used for implementing double-point synchronous grouting of slurry up and down; The grouting mechanism includes an upper ring pipe and a lower ring pipe. A plurality of upper through pipes communicating with the upper ring pipe are evenly distributed along the circumference at the upper end of the inner wall of the stirring tank, and a plurality of lower through pipes communicating with the lower ring pipe are evenly distributed along the circumference at the lower end of the inner wall of the stirring tank.

2. The silicon carbide grouting and stirring device according to claim 1, characterized in that: The driving portion is provided on the sealing cover. The driving portion includes a central shaft rod that is installed through the center of the lower end face of the sealing cover through a bearing and is located in the stirring tank, and a motor with an output end fixedly connected to the upper end of the central shaft rod is fixedly installed on the upper end face of the sealing cover through a motor seat provided.

3. The silicon carbide grouting and stirring device according to claim 2, characterized in that: The propeller blade is fixedly installed on the outer wall of the central shaft rod and is located between the tripods distributed up and down, and the stirring blades are evenly distributed along the contour of the propeller blade.

4. The silicon carbide grouting and stirring device according to claim 2, characterized in that: The support portion further includes a ring slide rail fixedly installed at the upper end of the inner wall of the stirring tank. Three support sliders evenly distributed along the circumference are slidably installed in the ring slide rail. The lower ends of the support sliders are fixedly installed with electric guide rails, and positioning columns are fixedly installed on one side of the upper end face of the electric guide rail away from the corresponding support sliders.

5. The silicon carbide grouting and stirring device according to claim 4, characterized in that: The limiting plates are symmetrically arranged about the center of the electric guide rail. A plurality of limiting chutes are evenly formed from top to bottom on the side walls of the two limiting plates on the same electric guide rail that are close to each other, and positioning blocks are fixedly installed at the lower ends of the two limiting plates on the same electric guide rail.

6. The silicon carbide grouting and stirring device according to claim 5, wherein: The sliding plate is fixedly installed on the mobile end of the electric guide rail. Limiting sliders slidably connected to the corresponding limiting chutes are fixedly installed on the sliding plate, and the scraping plate is fixedly installed on a side wall of the sliding plate away from the center of the sealing cover.

7. The silicon carbide grouting stirring device according to claim 6, characterized in that: The actuator further includes an actuator part for synchronously stirring the silicon carbide slurry near the inner wall of the stirring tank. The actuator part includes a plurality of support rods fixedly installed on the side wall of the sliding plate close to the center of the sealing cover. The support rods are linearly distributed from top to bottom. One end of the support rod away from the corresponding sliding plate is fixedly installed with a side paddle.

8. A silicon carbide grouting and stirring device according to claim 1, characterized in that: The grouting mechanism further includes a grouting part arranged on the stirring tank. The upper ring pipe is fixedly installed at the upper end of the outer wall of the stirring tank, the lower ring pipe is fixedly installed at the lower end of the outer wall of the stirring tank, a one-way valve is fixedly installed in the lower through pipe, and the upper ring pipe and the lower ring pipe are communicated through a set T-shaped connecting pipe.

9. A silicon carbide grouting and stirring device according to claim 1, characterized in that: The grouting mechanism further includes a slurry discharging part arranged on the base and used for discharging the silicon carbide slurry in the stirring tank. The slurry discharging part includes an L-shaped discharging pipe fixedly installed at the center of the lower end surface of the stirring tank and communicated with the inside of the stirring tank. A suction pump with a suction end fixedly connected to the discharging end of the L-shaped discharging pipe is fixedly installed on the upper end surface of the base. The discharging end of the suction pump is fixedly installed with a slurry discharging pipe, and a communicating valve is arranged on the slurry discharging pipe.

10. A silicon carbide grouting and stirring device according to claim 5, characterized in that: Connecting rings distributed up and down are fixedly sleeved on the outer wall of the central shaft rod. The connecting rings correspond to the triangular frames one by one. The connecting rings are fixedly connected with the corresponding triangular frames through connecting rods arranged on the diagonals of the triangular frames. The upper ends of the three positioning columns all penetrate through the included angles of the upper triangular frame and are fixedly connected with the triangular frame. The lower end surfaces of the three positioning blocks are all fixedly connected with the lower triangular frame.

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