High-pressure forming process and equipment for low-carbon high-strength magnesia carbon brick

Abstract

The invention relates to the technical field of refractory material preparation, and discloses a low-carbon high-strength magnesia carbon brick high-pressure forming process and equipment, the low-carbon high-strength magnesia carbon brick high-pressure forming process comprises the following steps: S1, raw material preparation: selecting high-quality magnesia, a carbon source and a binding agent, proportioning according to a certain proportion, and controlling the content of the carbon source at a lower level to realize the low-carbon target; through the arrangement of the cleaning mechanism, after a material distribution box adds raw materials into the lower die, a motor can be started to drive a lead screw to rotate, and a transmission box is driven while the lead screw rotates, so that the transmission box reciprocates along a sliding groove under the limitation of a sliding block; and meanwhile, the transmission box can drive the shell, the cleaning plate and the brush to reciprocate at the top of the lower die, raw materials at the top of the lower die are cleaned, the integrating degree of the upper die and the lower die during die assembly is improved, and then the magnesia carbon brick forming effect is improved.

Description

Technical Field

[0001] This invention relates to the field of refractory material preparation technology, specifically to a high-pressure molding process and equipment for low-carbon, high-strength magnesia-carbon bricks. Background Technology

[0002] Refractories are a class of inorganic non-metallic materials with a refractoriness of not less than 1580℃. Refractoriness refers to the Celsius temperature at which a conical specimen of a refractory material, under no load, resists high temperatures without softening or melting. However, defining refractoriness alone is insufficient to fully describe refractory materials; 1580℃ is not absolute. Currently, it is defined as any material whose physicochemical properties allow it to be used in high-temperature environments. A search revealed a Chinese patent document disclosing a device and process for preparing high-strength magnesia-carbon bricks for refining steel ladles [Announcement No.: CN111844374B]. The device includes a first pressing device, a second pressing device located on one side of the first pressing device, a mold transfer device, and a powder adding device. Both the first and second pressing devices include a frame, a mold cavity assembly, a pressing mold assembly, and a transmission assembly, as well as a mold guiding assembly. The process includes upper mold, primary pressing, secondary pressing, transfer and flipping, reverse pressing, and discharge. By setting up the first and second pressing devices to press the powder into shape on both sides, and by using a second transmission unit to transfer and flip the mold between the first and second pressing devices, combined with the automation of upper mold, primary pressing, secondary pressing, transfer and flipping, reverse pressing, and discharge, automated production is achieved. Furthermore, the pressure is evenly distributed during the pressing of the bricks, and the density of the pressed refractory bricks is uniform.

[0003] Magnesia-carbon bricks, as an important refractory material, are widely used in industries such as iron and steel metallurgy. In the high-pressure molding process of low-carbon high-strength magnesia-carbon bricks, a brick press is used. By controlling the upper and lower molds to press, magnesia-carbon bricks are formed. Existing brick presses generally control the material box to move to the top of the lower mold and then feed the material into the mold groove. However, considering that some raw materials do not enter the mold groove during this process, but fall to the top of the lower mold, this will cause a gap when the upper and lower molds are closed, which will affect the molding effect of magnesia-carbon bricks. To address this issue, we propose a high-pressure molding process and equipment for low-carbon, high-strength magnesia-carbon bricks. Summary of the Invention

[0004] The purpose of this invention is to provide a high-pressure molding process and equipment for low-carbon, high-strength magnesia-carbon bricks, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-pressure molding process for low-carbon, high-strength magnesia-carbon bricks, comprising the following steps: S1: Raw material preparation: Select high-quality magnesia, carbon source (such as graphite) and binder, and mix them in a certain proportion. The content of carbon source is controlled at a low level to achieve the goal of low carbon. S2: Premixing, the prepared raw materials are put into the premixing equipment for preliminary mixing, so that the various raw materials are evenly distributed; S3: High-pressure molding, the premixed materials are placed into a special brick press and high pressure is applied to make the materials tightly bonded under high pressure to form a magnesia-carbon brick blank with a certain shape and strength; S4: Heat treatment, which involves heat-treating the formed magnesia-carbon brick blank to further improve its strength and stability.

[0006] Preferably, it also includes a lower mold fixedly installed inside the brick press, an upper mold is provided on the top of the lower mold, two hydraulic rods are fixedly installed on the top of the brick press, the output end of the hydraulic rods passes through the interior of the brick press and is fixedly connected to the bottom of the upper mold, a material feeding box for feeding is connected to the internal transmission of the brick press, and a mounting frame is fixedly installed on one side of the brick press. A cleaning mechanism is fixedly mounted on a mounting frame.

[0007] Preferably, the cleaning mechanism includes a motor fixedly installed on one side of the mounting frame, the output end of the motor extending into the interior of the mounting frame and fixedly connected to a lead screw, a transmission box being drivenly connected to the surface of the lead screw, a housing being fixedly connected to one side of the transmission box, a cleaning plate being provided inside the housing, a brush being fixedly connected to the bottom of the cleaning plate, and a pressing mechanism being provided at the top of the housing.

[0008] Preferably, the pressing mechanism includes a connecting rod fixedly connected to the top of the cleaning plate, the top of the connecting rod extending through to the top of the housing and fixedly connected to a linkage rod, a pressing plate being provided on one side of the linkage rod, the bottom of the pressing plate being fixedly connected to the top of the mounting frame, a pressing groove being provided on one side of the pressing plate, a pressing rod being provided inside the pressing groove, and one end of the pressing rod being fixedly connected to one side of the linkage rod.

[0009] Preferably, it also includes a jetting mechanism, which includes a flow divider box fixedly connected to the top of the transmission box. Both sides of the flow divider box are provided with nozzles. One side of each nozzle is fixedly connected to two jetting pipes. One side of each jetting pipe is fixedly connected to one side of the flow divider box through a one-way pressure valve. One side of the diversion box is fixedly connected to a transmission hose via a first one-way valve. One side of the transmission hose is fixedly connected to an air collection box. One side of the air collection box is fixedly connected to one side of the mounting bracket. The top of the air collection box is fixedly connected to an air inlet pipe via a second one-way valve. A piston plate is installed inside the air collection box. A push block is fixedly connected to the bottom of the piston plate. A push rod is fixedly connected to the bottom of the push block. A transmission block is fixedly connected to the bottom of the push rod. A cam is fixedly connected to the bottom of the transmission block. The inner wall of the cam is fixedly connected to the surface of the motor output end. A spring is fixedly connected to the top of the transmission block. The top of the spring is fixedly connected to the bottom of the air collection box.

[0010] Preferably, the transmission hose is made of rubber and is bendable.

[0011] Preferably, a tension spring is fitted onto the surface of the connecting rod, with the top of the tension spring fixedly connected to the inner wall of the housing and the bottom of the tension spring fixedly connected to the top of the cleaning plate.

[0012] Preferably, the extrusion groove is sloping and contacts the surface of the extrusion rod.

[0013] Preferably, sliding blocks are fixedly connected to both sides of the transmission box, and the inner wall of the mounting bracket is provided with sliding grooves that cooperate with the sliding blocks.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention incorporates a cleaning mechanism. After the material is added to the lower mold by the material feeding box, the motor is started, which drives the lead screw to rotate. As the lead screw rotates, it drives the transmission box, causing the transmission box to reciprocate along the sliding groove under the constraint of the sliding block. At the same time, the transmission box drives the housing, cleaning plate, and brush to reciprocate on the top of the lower mold, cleaning the material on the top of the lower mold, improving the fit between the upper and lower molds when they are closed, and thus improving the molding effect of magnesia-carbon bricks. This invention incorporates a pressing mechanism. As the housing moves the cleaning plate and brush away from the mounting bracket, it also moves the connecting rod, linkage rod, and extrusion rod. During the movement of the extrusion rod, it gradually moves downward due to the extrusion groove, simultaneously moving the linkage rod, connecting rod, and cleaning plate downward. During this process, the bottom of the brush contacts the top of the lower mold. As the cleaning plate moves downward, the bristles at the bottom of the brush are gradually compacted, preventing raw materials from leaking out of the bristles and causing residue, thereby improving the cleaning effect. This invention employs a jetting mechanism. When the motor output rotates, it drives a cam to rotate as well. When the cam's protruding end contacts the bottom of the transmission block, the transmission block moves upward due to compression. Simultaneously, it drives the push rod, push block, and piston plate to move upward, compressing the gas in the gas collection box. This compresses the gas through the transmission hose into the distribution box. When the cam rotates to a point where it no longer contacts the transmission block, the spring force pushes the transmission block, push rod, push plate, and piston plate downward. At this point, the gas collection box is under negative pressure, and the gas enters the gas collection box through the air inlet pipe. This cycle continues, intermittently compressing the gas into the distribution box. When the gas pressure reaches the one-way pressure valve, the gas is ejected from the jetting pipe and then sprayed from the nozzle onto the top of the lower mold, blowing off small pieces of raw material and improving the mold's fit. Attached Figure Description

[0015] Figure 1 This is a flowchart of the process in this invention; Figure 2 This is a schematic diagram of the three-dimensional structure in this invention; Figure 3 This is a perspective view of a partial structure in this invention; Figure 4 This is a perspective view of the installation in this invention; Figure 5 This is a perspective view of the housing from the side in this invention; Figure 6 This is a perspective view of the side section of the gas collection box in this invention; Figure 7 This is a perspective view of a partial structure in this invention, viewed from below. Figure 8 This is a perspective view of the side section of the shell in this invention; Figure 9 This is a perspective view of the jet mechanism in this invention.

[0016] In the diagram: 1. Brick press; 2. Lower mold; 3. Upper mold; 4. Hydraulic rod; 5. Material box; 6. Mounting frame; 7. Motor; 8. Lead screw; 9. Transmission box; 10. Housing; 11. Cleaning plate; 12. Brush; 13. Connecting rod; 14. Linkage rod; 15. Extrusion plate; 16. Extrusion groove; 17. Extrusion rod; 18. Diverter box; 19. Nozzle; 20. Air jet pipe; 21. Transmission hose; 22. Air collection box; 23. Air inlet pipe; 24. Piston plate; 25. Push block; 26. Push rod; 27. Transmission block; 28. Cam; 29. ​​Spring; 30. Tension spring; 31. Sliding block; 32. Sliding groove. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 - Figure 9 As shown, Example 1: A high-pressure molding process for low-carbon, high-strength magnesia-carbon bricks includes the following steps: S1: Raw material preparation: Select high-quality magnesia, carbon sources such as graphite, and binders, and mix them in a certain proportion. The content of carbon sources is controlled at a low level to achieve the goal of low carbon. S2: Premixing, the prepared raw materials are put into the premixing equipment for preliminary mixing, so that the various raw materials are evenly distributed; S3: High-pressure molding. The premixed materials are placed into a special brick press 1 and high pressure is applied to make the materials tightly bonded under high pressure to form a magnesia-carbon brick blank with a certain shape and strength. S4: Heat treatment, which involves heat-treating the formed magnesia-carbon brick blank to further improve its strength and stability.

[0019] It also includes a lower mold 2 fixedly installed inside the brick press 1, an upper mold 3 is provided on the top of the lower mold 2, two hydraulic rods 4 are fixedly installed on the top of the brick press 1, the output end of the hydraulic rods 4 passes through the interior of the brick press 1 and is fixedly connected to the bottom of the upper mold 3, a material feeding box 5 for feeding is connected to the internal transmission of the brick press 1, and a mounting frame 6 is fixedly installed on one side of the brick press 1. The cleaning mechanism is fixedly mounted on the mounting bracket 6.

[0020] The cleaning mechanism includes a motor 7 fixedly installed on one side of the mounting frame 6. The output end of the motor 7 extends into the interior of the mounting frame 6 and is fixedly connected to a lead screw 8. A transmission box 9 is connected to the surface of the lead screw 8. A housing 10 is fixedly connected to one side of the transmission box 9. A cleaning plate 11 is provided inside the housing 10. A brush 12 is fixedly connected to the bottom of the cleaning plate 11. A pressing mechanism is provided at the top of the housing 10.

[0021] In this embodiment, the brick press 1 typically controls the material feeding box 5 to move to the top of the lower mold 2 before feeding the material into the mold groove. However, considering that some material may not enter the mold groove but instead fall onto the top of the lower mold 2, this can cause a gap when the upper mold 3 and the lower mold 2 are closed, affecting the molding effect of the magnesia-carbon bricks. Therefore, a cleaning mechanism is set up. After the material feeding box 5 adds the material into the lower mold 2, the motor 7 can be started. The motor 7 will drive the lead screw 8 to rotate. While the lead screw 8 is rotating, it will drive the transmission box 9, causing the transmission box 9 to reciprocate along the sliding groove 32 under the restriction of the sliding block 31. At the same time, the transmission box 9 will drive the housing 10, the cleaning plate 11, and the brush 12 to reciprocate on the top of the lower mold 2 to clean the material on the top of the lower mold 2, improve the fit between the upper mold 3 and the lower mold 2 when they are closed, and thus improve the molding effect of the magnesia-carbon bricks.

[0022] Sliding blocks 31 are fixedly connected to both sides of the transmission box 9, and sliding grooves 32 that cooperate with the sliding blocks 31 are opened on the inner wall of the mounting bracket 6.

[0023] In this embodiment, by setting a sliding block 31 and a sliding groove 32, when the lead screw 8 drives the transmission box 9, it can restrict the transmission box 9 to move only along the trajectory of the sliding groove 32, thereby limiting the movement trajectory.

[0024] Example 2: Based on Embodiment 1, in this embodiment, the cleaning mechanism can control the brush 12 to move back and forth to remove the raw material on the surface of the upper mold 3, so that the upper mold 3 and the lower mold 2 can be perfectly closed, thereby improving the molding effect of magnesia-carbon bricks. However, considering that during the cleaning process, as the raw material in front of the brush 12 increases, some raw material may easily leak from the bottom of the brush 12 and remain on the top of the lower mold 2, which will also affect the mold closing effect. In this application, the pressing mechanism includes a connecting rod 13 fixedly connected to the top of the cleaning plate 11. The top of the connecting rod 13 extends through to the top of the housing 10 and is fixedly connected to a linkage rod 14. A pressing plate 15 is provided on one side of the linkage rod 14. The bottom of the pressing plate 15 is fixedly connected to the top of the mounting frame 6. A pressing groove 16 is opened on one side of the pressing plate 15. A pressing rod 17 is provided inside the pressing groove 16. One end of the pressing rod 17 is fixedly connected to one side of the linkage rod 14.

[0025] In this embodiment, by setting a pressing mechanism, when the housing 10 moves the cleaning plate 11 and the brush 12 away from the mounting bracket 6, it also moves the connecting rod 13, the linkage rod 14 and the pressing rod 17. During the movement of the pressing rod 17, it will gradually move downward due to the influence of the pressing groove 16, and at the same time move the linkage rod 14, the connecting rod 13 and the cleaning plate 11 downward. During this process, the bottom of the brush 12 contacts the top of the lower mold 2. As the cleaning plate 11 moves downward, the bristles at the bottom of the brush 12 will be gradually compacted, preventing the raw materials from leaking out of the bristles and causing residue, thereby improving the cleaning effect. When the housing 10 and other structures move in the opposite direction, the tension generated by the tension spring 30 will drive the cleaning plate 11 and brush 12 and other structures to gradually move upward, which will play a role in resetting. At the same time, it will reduce the contact area between the brush 12 and the lower mold 2, thereby reducing wear.

[0026] A tension spring 30 is fitted on the surface of the connecting rod 13. The top of the tension spring 30 is fixedly connected to the inner wall of the housing 10, and the bottom of the tension spring 30 is fixedly connected to the top of the cleaning plate 11.

[0027] In this embodiment, by setting a tension spring 30, when the housing 10 and other structures move in the opposite direction, the tension generated by the tension spring 30 will drive the cleaning plate 11 and brush 12 and other structures to gradually move upward, thereby achieving the function of resetting.

[0028] The extrusion groove 16 is sloping and contacts the surface of the extrusion rod 17.

[0029] In this embodiment, by setting the extrusion groove 16, when the extrusion rod 17 moves, it will gradually move downward due to the influence of the extrusion groove 16, and at the same time drive the linkage rod 14, the connecting rod 13 and the cleaning plate 11 to move downward, thus playing a transmission role.

[0030] Example 3: Based on Embodiment 1, in this embodiment, the cleaning mechanism can control the brush 12 to move back and forth to remove the raw material on the surface of the upper mold 3, so that the upper mold 3 and the lower mold 2 can be perfectly closed. However, considering that some small raw materials will remain on the top of the lower mold 2 during the cleaning process of the brush 12, which will also affect the mold closing effect, this application also includes an air jet mechanism. The air jet mechanism includes a flow distribution box 18 fixedly connected to the top of the transmission box 9. Both sides of the flow distribution box 18 are provided with nozzles 19. One side of the nozzle 19 is fixedly connected to two air jet pipes 20. One side of the air jet pipe 20 is fixedly connected to one side of the flow distribution box 18 through a one-way pressure valve. One side of the diverter box 18 is fixedly connected to a transmission hose 21 via a first one-way valve. One side of the transmission hose 21 is fixedly connected to an air collection box 22. One side of the air collection box 22 is fixedly connected to one side of the mounting bracket 6. The top of the air collection box 22 is fixedly connected to an air inlet pipe 23 via a second one-way valve. A piston plate 24 is provided inside the air collection box 22. A push block 25 is fixedly connected to the bottom of the piston plate 24. A push rod 26 is fixedly connected to the bottom of the push block 25. A transmission block 27 is fixedly connected to the bottom of the push rod 26. A cam 28 is fixedly connected to the bottom of the transmission block 27. The inner wall of the cam 28 is fixedly connected to the surface of the output end of the motor 7. A spring 29 is fixedly connected to the top of the transmission block 27. The top of the spring 29 is fixedly connected to the bottom of the air collection box 22.

[0031] In this embodiment, by setting up an air jet mechanism, when the output end of the motor 7 rotates, it will drive the cam 28 to rotate. When the protruding end of the cam 28 contacts the bottom of the transmission block 27, the transmission block 27 will move upward due to the squeezing effect. At the same time, it will drive the push rod 26, the push block 25 and the piston plate 24 to move upward, squeezing the gas in the gas collection box 22, so that the gas enters the distribution box 18 through the transmission hose 21. When the cam 28 rotates to the point where it does not contact the transmission block 27, the elastic force generated by the spring 29 will push the transmission block 27, the push rod 26, the push plate and the piston plate 24 to move downward. At this time, the gas collection box 22 is under negative pressure, and the gas will enter the gas collection box 22 through the air inlet pipe 23. The gas is compressed into the distribution box 18 intermittently in a cycle. When the gas pressure reaches the one-way pressure valve, the gas will be sprayed out from the air jet pipe 20, and then sprayed from the nozzle 19 to the top of the mold 2, blowing off some small raw materials and improving the mold closing fit. It should be noted that the first check valve position can only be used for the valve that allows air to enter the distribution box 18 through the transmission hose 21, while the second check valve can only be used for the valve that allows air to enter the collection box 22.

[0032] The transmission hose 21 is made of rubber and can be bent.

[0033] In this embodiment, a transmission hose 21 is provided, which is made of rubber. When the cleaning mechanism controls the diversion box 18 to move, the transmission hose 21 will bend, which will not affect the normal operation of the housing 10 and other structures.

[0034] The working principle and usage process of this invention: After the material box 5 adds the raw material into the lower mold 2, the motor 7 can be started. The motor 7 will drive the lead screw 8 to rotate. While the lead screw 8 is rotating, it will drive the transmission box 9, causing the transmission box 9 to move back and forth along the sliding groove 32 under the restriction of the sliding block 31. At the same time, the transmission box 9 will drive the housing 10, the cleaning plate 11 and the brush 12 to move back and forth on the top of the lower mold 2 to clean the raw material on the top of the lower mold 2, improve the fit between the upper mold 3 and the lower mold 2 when they are closed, and thus improve the molding effect of magnesia-carbon bricks. As the housing 10 moves the cleaning plate 11 and brush 12 away from the mounting bracket 6, it also moves the connecting rod 13, linkage rod 14 and extrusion rod 17. During the movement of the extrusion rod 17, it will gradually move downward due to the extrusion groove 16, and at the same time move the linkage rod 14, connecting rod 13 and cleaning plate 11 downward. During this process, the bottom of the brush 12 contacts the top of the lower mold 2. As the cleaning plate 11 moves downward, the bristles at the bottom of the brush 12 will be gradually compacted to prevent raw materials from leaking out of the bristles and causing residue, thereby improving the cleaning effect. When the output end of motor 7 rotates, it drives cam 28 to rotate. When the protruding end of cam 28 contacts the bottom of transmission block 27, the transmission block 27 will move upward due to the squeezing effect. At the same time, it will drive push rod 26, push block 25 and piston plate 24 to move upward, squeezing the gas in the gas collection box 22. The gas will then enter the distribution box 18 through the transmission hose 21. When cam 28 rotates to the point where it no longer contacts transmission block 27, the elastic force generated by spring 29 will push transmission block 27, push rod 26, push plate and piston plate 24 downward. At this time, the gas collection box 22 is under negative pressure, and the gas will enter the gas collection box 22 through the air inlet pipe 23. The gas will be compressed into the distribution box 18 intermittently in a cycle. When the gas pressure reaches the one-way pressure valve, the gas will be sprayed out through the jet pipe 20 and then sprayed from the nozzle 19 to the top of the mold 2, blowing off some small raw materials and improving the mold closing fit.

[0035] It should be noted that the brick press 1, hydraulic rod 4 and motor 7 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Furthermore, the specific composition and principle of the power supply of the brick press 1, hydraulic rod 4 and motor 7 are clear to those skilled in the art, and therefore will not be described in detail.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure molding process for low-carbon, high-strength magnesia-carbon bricks, characterized in that: Includes the following steps: S1: Raw material preparation: Select high-quality magnesia, carbon source and binder, and mix them in a certain proportion. The content of carbon source is controlled at a low level to achieve the goal of low carbon. S2: Premixing, the prepared raw materials are put into the premixing equipment for preliminary mixing, so that the various raw materials are evenly distributed; S3: High-pressure molding, the premixed materials are placed into a special brick press and high pressure is applied to make the materials tightly bonded under high pressure to form a magnesia-carbon brick blank with a certain shape and strength; S4: Heat treatment, which involves heat-treating the formed magnesia-carbon brick blank to further improve its strength and stability.

2. The high-pressure molding equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 1, characterized in that: It also includes a lower mold (2) fixedly installed inside the brick press (1), an upper mold (3) is provided on the top of the lower mold (2), two hydraulic rods (4) are fixedly installed on the top of the brick press (1), the output end of the hydraulic rods (4) passes through the inside of the brick press (1) and is fixedly connected to the bottom of the upper mold (3), a material feeding box (5) for feeding is connected to the internal transmission of the brick press (1), and a mounting frame (6) is fixedly installed on one side of the brick press (1). The cleaning mechanism is fixedly mounted on the mounting frame (6).

3. The high-pressure molding equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 2, characterized in that: The cleaning mechanism includes a motor (7) fixedly installed on one side of the mounting frame (6). The output end of the motor (7) extends through the interior of the mounting frame (6) and is fixedly connected to a lead screw (8). A transmission box (9) is connected to the surface of the lead screw (8). A housing (10) is fixedly connected to one side of the transmission box (9). A cleaning plate (11) is provided inside the housing (10). A brush (12) is fixedly connected to the bottom of the cleaning plate (11). A pressing mechanism is provided on the top of the housing (10).

4. The high-pressure molding equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 2, characterized in that: The pressing mechanism includes a connecting rod (13) fixedly connected to the top of the cleaning plate (11). The top of the connecting rod (13) extends through to the top of the housing (10) and is fixedly connected to a linkage rod (14). A pressing plate (15) is provided on one side of the linkage rod (14). The bottom of the pressing plate (15) is fixedly connected to the top of the mounting bracket (6). A pressing groove (16) is provided on one side of the pressing plate (15). A pressing rod (17) is provided inside the pressing groove (16). One end of the pressing rod (17) is fixedly connected to one side of the linkage rod (14).

5. The high-pressure molding equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 2, characterized in that: It also includes a jetting mechanism, which includes a split box (18) fixedly connected to the top of the transmission box (9). Both sides of the split box (18) are provided with nozzles (19). One side of the nozzle (19) is fixedly connected to two jet pipes (20). One side of the jet pipes (20) is fixedly connected to one side of the split box (18) through a one-way pressure valve. One side of the diversion box (18) is fixedly connected to a transmission hose (21) via a first one-way valve. One side of the transmission hose (21) is fixedly connected to an air collection box (22). One side of the air collection box (22) is fixedly connected to one side of the mounting bracket (6). The top of the air collection box (22) is fixedly connected to an air inlet pipe (23) via a second one-way valve. The inside of the air collection box (22) is provided with a piston plate (24). The bottom of the piston plate (24) is fixedly connected to a push block (25). The bottom of the push block (25) is fixedly connected to a push rod (26). The bottom of the push rod (26) is fixedly connected to a transmission block (27). The bottom of the transmission block (27) is fixedly connected to a cam (28). The inner wall of the cam (28) is fixedly connected to the surface of the output end of the motor (7). The top of the transmission block (27) is fixedly connected to a spring (29). The top of the spring (29) is fixedly connected to the bottom of the air collection box (22).

6. The high-pressure molding process and equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 5, characterized in that: The transmission hose (21) is made of rubber and can be bent.

7. The high-pressure molding equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 4, characterized in that: A tension spring (30) is fitted on the surface of the connecting rod (13). The top of the tension spring (30) is fixedly connected to the inner wall of the housing (10), and the bottom of the tension spring (30) is fixedly connected to the top of the cleaning plate (11).

8. The high-pressure molding equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 4, characterized in that: The extrusion groove (16) is sloping and contacts the surface of the extrusion rod (17).

9. The high-pressure molding equipment for low-carbon, high-strength magnesia-carbon bricks according to claim 3, characterized in that: Both sides of the transmission box (9) are fixedly connected with sliding blocks (31), and the inner wall of the mounting bracket (6) is provided with sliding grooves (32) that cooperate with the sliding blocks (31).

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