Scouring-resistant magnesia-alumina-carbon impact zone ladle bottom brick and forming method

Abstract

The invention provides a scour-resistant magnesia-alumina-carbon impact zone ladle bottom brick which comprises the following components in percentage by weight: 6-8% of brown aluminum oxide particles; 4-6% of tabular corundum; 70-75% of fused magnesite; 1.2 to 1.5 percent of metal aluminum powder; 1.2 to 1.5 percent of silicon carbide powder; 7-9% of graphite; according to the invention, the quality of the ladle bottom brick is improved through cooperative work of a material pressing mechanism, a discharging mechanism and a lifting mechanism, a pressing assembly of the material pressing mechanism increases a punching head and increases pressure, an opening and closing assembly is matched with a loosening assembly, and the material pressing mechanism is matched with the opening and closing assembly, so that the material pressing mechanism, the discharging mechanism and the lifting mechanism are matched, and the material pressing mechanism, the discharging mechanism and the lifting mechanism are matched; powder is scattered by means of the gravity of the spring and the pressing plate and the power of the hydraulic rod, and layering and dust flying are prevented; the discharging mechanism accurately controls the discharging amount through a pressure sensor and an electromagnetic valve, and it is guaranteed that components and structures of brick bodies are uniform; the rotating assembly of the lifting mechanism is matched with discharging, so that powder evenly falls off, resin is distributed in a spring shape, and the structural strength of the ladle bottom brick is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of refractory materials, and in particular to an erosion-resistant magnesium-aluminum-carbon impact zone bottom brick and a forming method thereof. Background Art

[0002] Magnesium aluminum carbon impact zone bottom bricks are important refractory materials used in the impact area of the bottom of the ladle. They are mainly made of magnesia, alumina, carbon and other raw materials through a specific process. The bricks can withstand the strong scouring of high-temperature molten steel by virtue of their high scouring resistance, and effectively reduce the erosion caused by the impact on the bottom of the ladle. As the company participates in multiple large ladle overall contracting projects with a single ladle output of more than 200 tons, the original ordinary aluminum magnesium carbon (or magnesium aluminum carbon) impact zone bottom bricks can no longer meet the technical requirements of long life and scouring resistance. Due to the large difference in height between large and small ladles, the height difference of molten steel changes. After the free fall of molten steel, the scouring force of the large ladle and the small ladle changes accordingly. Faced with the increasingly fierce market competition environment and the dual pressure of steel mills on green production, it has become an important step at present to start the research and development of scouring-resistant magnesium aluminum carbon impact zone bottom bricks to meet the requirements of the market and customers.

[0003] Chinese patent CN117447216A discloses a bottom-clad aluminum-magnesium-carbon brick and its preparation method, comprising: 50-75wt% waste base material, 5-10wt% fused magnesia, 3-6wt% white corundum, 5-10wt% graphite, 5-10wt% composite magnesia-aluminum spinel, 0-5wt% antioxidant, and 2-3wt% resin. The present application also provides a preparation method for the bottom-clad aluminum-magnesium-carbon brick. The waste base material in the bottom-clad aluminum-magnesium-carbon brick provided herein is one of recycled waste argon base bricks and waste corundum carbon-free prefabricated blocks, with the main components being corundum and spinel. This not only allows the corundum to continue to function in terms of erosion resistance and slag erosion resistance, but also reduces costs. Simultaneously, by adding and controlling the amount of fused magnesia and composite magnesia-aluminum spinel, the bottom-clad aluminum-magnesium-carbon brick can significantly improve its erosion and penetration resistance.

[0004] Some existing bottom-wrapped bricks are relatively long, which means that they have extremely high height requirements. Therefore, during the production process, one-time filling and stamping will lead to inconsistent tightness of the internal raw materials. Therefore, a single existing bottom-wrapped brick needs to undergo multiple cycles of filling-stamping-filling-stamping. However, in the actual production process, it is found that the final stamped product will not be compacted enough at the joints, which will accelerate the rate of cracking during use and reduce the product life. Summary of the Invention

[0005] The purpose of the present invention is to address the shortcomings of the existing technology and provide a scour-resistant magnesium-aluminum-carbon impact zone bottom-wrapped brick. Through the main material layer and the bonding layer spirally built into the main material layer, the bonding material resin forms a distribution trajectory similar to a "spring" shape, and then uses the viscosity and elastic structure of the resin itself to firmly grasp and tighten the main material, thereby enhancing the structural strength of the brick, and solving the problem of low structural strength of the bottom-wrapped bricks in the existing technology and easy delamination and fracture at the joints.

[0006] To achieve the above object, the present invention provides the following technical solutions: A scour-resistant magnesium-aluminum-carbon impact zone bottom brick comprises a main material layer and a bonding layer spirally embedded in the main material layer; The raw materials of the main material layer include brown corundum particles, plate-shaped corundum, fused magnesia, metallic aluminum powder, silicon carbide powder, graphite and resin; The raw material of the bonding layer includes resin.

[0007] Preferably, the raw materials of the main material layer are as follows by weight percentage: Brown corundum particles 6-8%; Tabular corundum 4-6%; Fused magnesia 70-75%; Aluminum powder 1.2-1.5%; Silicon carbide powder 1.2-1.5%; Graphite 7-9%; Resin 2-3%.

[0008] Preferably, the ratio of the main material layer to the bonding layer is 10:1-15:1.

[0009] Preferably, the method comprises a main material layer and a bonding layer spirally embedded in the main material layer.

[0010] Preferably, the bonding layer is made of resin material.

[0011] Preferably, the resin material is a composite phenolic resin with a viscosity of 13000-15000.

[0012] Preferably, the brown corundum particles contain Al2O3≥95.0%, Fe2O3≤0.5%, and SiO2≤1.5%.

[0013] Preferably, Al2O3 in the tabular corundum is ≥99.0%, Fe2O3 ≤0.1%, SiO2 ≤0.2%, and Na2O ≤0.2%.

[0014] Preferably, SiC in silicon carbide powder is ≥95%, and free carbon C is ≤0.3%.

[0015] The present application also provides a method for forming a scour-resistant magnesium-aluminum-carbon impact zone bottom brick, comprising the following steps: S1, mixing brown corundum particles, plate corundum, fused magnesia, aluminum powder, silicon carbide powder, and graphite to form the main material, and placing it into a hopper, and then placing the resin into another hopper; S2, molding, the main material enters through the opening and closing component, and is fully broken up by the loosening component, and then evenly enters the brick pressing cavity. At the same time, as the brick pressing cavity rotates, the resin enters the brick pressing cavity from the other side and is laid behind the main material. The resin forms a spiral distribution structure in the main material. After the filling is completed, the pressing component pre-punches the filled material; S3. Output: After the pressing is completed, the bottom brick is formed and pushed out from the brick pressing cavity for collection.

[0016] Preferably, the pressing assembly comprises: a hydraulic rod, wherein the hydraulic rod is arranged on the frame; A punching head is installed on the top rod of the hydraulic rod.

[0017] Preferably, the opening and closing assembly comprises: A pressure rod, which is arranged at the bottom of the punch head and has a limiting column; A pressing plate, wherein a blanking cavity is provided inside the pressing plate; A limiting sleeve, the limiting sleeve is arranged on the pressure plate, and a sliding groove is opened on the limiting sleeve, and the limiting column is slidably arranged on the sliding groove; A fixing plate, the fixing plate being arranged on the pressure rod; a spring, the spring being arranged between the pressure plate and the fixing plate; a rotating rod, the rotating rod being rotatably disposed on the fixed plate; A sealing block is provided at the bottom end of the rotating rod and is used for sealing the blanking cavity to compact the powder at the notch.

[0018] Preferably, the loosening assembly comprises: a loosening motor, the loosening motor being mounted on the fixing plate; a limit block, the limit block being provided on the rotating rod and being used to abut against the fixing plate, thereby providing downward pressure to the sealing block to compact the powder; The loosening rotary blade is provided on the rotating rod and is used to break up the falling powder to make it more fluffy.

[0019] Preferably, during the preparation of a single bottom-wrapped brick, the S2 cycle is performed at least twice.

[0020] As another preferred embodiment, when punching, the weight of each brick should be ≥15Kg and punched at least 12 times.

[0021] The beneficial effects of the present invention are: (1) The present invention uses a main material layer and a spirally built-in adhesive layer in the main material layer, and is supplemented by a rotating component and a specific structure of a feeding mechanism, so that the adhesive material resin forms a distribution trajectory similar to a "spring" shape, and then uses the viscosity and elastic structure of the resin itself to firmly grasp and tighten the main material, thereby enhancing the structural strength of the brick, and solving the problem of low structural strength of the bottom-wrapped bricks in the prior art and easy delamination and fracture at the joints.

[0022] (2) The present invention adopts a special processing method in the forming process, that is, using a breaking component to break up the raw materials, while realizing intermittent discharge, so that the fluffy powder can be better squeezed into bricks, preventing the bricks from being delaminated. When the pressing plate squeezes the powder, the sealing block uses the power of the hydraulic rod moving downward to block the raw material cavity, preventing dust from flying out during the process of squeezing into bricks.

[0023] In summary, the present invention has the advantages of preventing dust from splashing, ensuring constant and uniform material feeding, and enhancing the structural strength of the bottom bricks. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the cylinder structure of the present invention; Figure 3 Schematic diagram of the structure of the material pressing mechanism of the present invention; Figure 4 This is a schematic diagram of the pressing plate structure of the present invention; Figure 5 This is a schematic diagram of the telescopic blanking elbow structure of the present invention; Figure 6 It is a structural schematic diagram of the blanking mechanism of the present invention; Figure 7 Schematic diagram of the structure of the pressure sensor of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the pressing plate of the present invention; Figure 9 Schematic diagram of the spring structure of the present invention; Figure 10 Schematic diagram of the limiting column structure of the present invention; Figure 11 This is a schematic diagram of the lifting mechanism structure of the present invention; Figure 12 This is a schematic cross-sectional view of the brick pressing cavity and sleeve barrel of the present invention; Figure 13 It is a process flow chart of the present invention; Figure 14It is a structural schematic diagram of the bottom-wrapped brick of the present invention.

[0024] In the picture: 100, rack; 1. Pressing mechanism; 11. Pressing assembly; 111. Hydraulic rod; 112. Punching head; 12. Opening and closing assembly; 121. Pressing rod; 1211. Limiting column; 122. Pressing plate; 1221. Unloading cavity; 123. Limiting sleeve; 1231. Slideway; 124. Fixing plate; 125. Spring; 126. Rotating rod; 127. Sealing block; 13. Loosening assembly; 131. Loosening motor; 132. Limiting block; 133. Loosening rotary cutter; 2. Unloading mechanism; 201. Support plate; 202. Pressure sensor; 203. Hopper; 204. Telescopic unloading elbow; 205. Solenoid valve; 206. Sealed feed cover; 3. Lifting mechanism; 31. Lifting assembly; 311. Brick pressing chamber; 312. Cylinder; 313. Push plate; 32. Rotating assembly; 321. Bucket; 322. Bearing; 323. Rotating motor; 324. Driving gear; 325. Driven gear. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] Example 1 like Figure 14As shown, this embodiment provides a erosion-resistant magnesium-aluminum-carbon impact zone bottom brick, comprising a main material layer and a bonding layer spirally built into the main material layer; The raw materials of the main material layer include brown corundum particles, plate-shaped corundum, fused magnesia, metallic aluminum powder, silicon carbide powder, graphite and resin; The raw material of the bonding layer includes resin.

[0028] Furthermore, the raw materials of the main material layer are as follows by weight percentage: Brown corundum particles 6-8%; Tabular corundum 4-6%; Fused magnesia 70-75%; Aluminum powder 1.2-1.5%; Silicon carbide powder 1.2-1.5%; Graphite 7-9%; Resin 2-3%.

[0029] Furthermore, the composition ratio of the main material layer to the bonding layer is 10:1-15:1.

[0030] Furthermore, the resin material is a composite phenolic resin with a viscosity of 13000-15000 mPa·s.

[0031] Furthermore, the invention comprises a main material layer and a bonding layer spirally embedded in the main material layer.

[0032] Furthermore, the bonding layer is made of resin material.

[0033] Furthermore, the resin material is a composite phenolic resin with a viscosity of 13000-15000.

[0034] Furthermore, in the brown corundum particles, Al2O3≥95.0%, Fe2O3≤0.5%, and SiO2≤1.5%.

[0035] Furthermore, in tabular corundum, Al2O3≥99.0%, Fe2O3≤0.1%, SiO2≤0.2%, and Na2O≤0.2%.

[0036] Furthermore, SiC in silicon carbide powder is ≥95%, and free carbon C is ≤0.3%.

[0037] Going one step further, use the following formula table: Table 1

[0038] This formula is for bale materials (approximately 24 hours). The required raw materials must be prepared in advance according to the particle size requirements and placed in the preparation silo. The production process must ensure that the raw materials are added according to the formula quality ratio and no other materials are mixed.

[0039] The physical and chemical indicators of the bottom-wrapped bricks obtained after production are as follows: Table 2

[0040] Example 2 like Figure 13 As shown, this embodiment provides a method for forming a erosion-resistant magnesium-aluminum-carbon impact zone bottom brick, comprising the following steps: S1, mixing brown corundum particles, plate-shaped corundum, fused magnesia, metallic aluminum powder, silicon carbide powder, and graphite to form a main material, and placing it into a hopper 203, and then placing the resin into another hopper 203; S2, molding, the main material enters through the opening and closing component 12, and is fully broken up by the loosening component 13, and then evenly enters the brick pressing cavity 311. At the same time, as the brick pressing cavity 311 rotates, the resin enters the brick pressing cavity 311 from the other side and is laid behind the main material. The resin forms a spiral distribution structure in the main material. After the filling is completed, the pressing component 11 pre-punches the filled powder; S3, output: after the pressing is completed, the bottom brick is formed and pushed out from the brick pressing cavity 311 for collection.

[0041] In the process of preparing a single bottom-wrapped brick, the S2 cycle is operated at least twice.

[0042] Among them, when punching, bricks weighing ≥15Kg / brick must be punched at least 12 times.

[0043] Example 3 like Figures 1 to 5 and Figures 8 to 10 As shown, the present invention also provides a forming device for forming a scour-resistant magnesium-aluminum-carbon impact zone bottom-clad brick, which includes: The pressing mechanism 1 includes: a pressing component 11, an opening and closing component 12 provided on the pressing component 11, and a loosening component 13 provided on the opening and closing component 12; When feeding, the opening and closing assembly is opened, and the main material enters through the opening and closing assembly, and is fully broken up by the loosening assembly, and then evenly enters the brick pressing cavity 311; In this embodiment, the opening and closing component 12 and the loosening component 13 are driven to move by the pressing component 11 to realize the controllable entry and exit and breaking up of the powder, thereby achieving the effect of improving the pressing effect and quality of the powder. Specifically, the movement of the pressing component 11 controls the opening and closing of the opening and closing component 12 to realize the regular entry and exit of the powder; the loosening component 13 breaks up the powder as it falls, making the powder more fluffy and convenient for subsequent pressing.

[0044] It is worth mentioning that as a further design of the structure, this embodiment realizes the functions of precise material unloading, uniform material distribution, efficient pressing and prevention of dust pollution through the coordination of the downward pressing component, opening and closing component and loosening component in the pressing mechanism, as well as the pressure sensor, solenoid valve and rotating component of the lifting mechanism of the unloading mechanism.

[0045] Further, if Figures 3 to 5 As shown, the pressing assembly 11 includes: A hydraulic rod 111, wherein the hydraulic rod 111 is provided on the frame 100; The punching head 112 is installed on the top rod of the hydraulic rod 111.

[0046] In this embodiment, the pressing assembly 11 composed of a hydraulic rod 111 and a punch head 112 is used to increase the pressing pressure, thereby achieving the effect of improving the compaction density of the bricks and improving the quality of the bricks. The pressing assembly 11 provides stable and sufficient pressure for the entire pressing process to ensure that the material powder can be fully compacted.

[0047] In detail, the hydraulic rod 111 cooperates with the punch head 112. When the top rod of the hydraulic rod 111 contracts upward, it drives the punch head 112 upward together to prepare for downward pressing. When the powder needs to be pressed, the top rod of the hydraulic rod 111 moves downward, pushing the punch head 112 down. The punch head 112 itself has a certain weight, which increases the downward pressure on the basis of the thrust of the hydraulic rod 111. This makes the pressure acting on the powder during the pressing process greater, and can compress the powder more tightly. Originally, the pressure of the hydraulic rod 111 alone may not be able to make the brick reach the ideal density. After adding the punch head 112, the pressure is increased, which can effectively reduce the gaps inside the brick, increase the density of the brick, and thus enhance the strength and durability of the brick.

[0048] Further, if Figures 8 to 10 As shown, the opening and closing component 12 includes: A pressure rod 121, which is disposed at the bottom of the punch head 112 and has a limiting column 1211; A pressing plate 122, wherein a blanking cavity 1221 is formed inside the pressing plate 122; A limiting sleeve 123 is provided on the pressing plate 122 and has a sliding groove 1231 formed thereon. The limiting post 1211 is slidably disposed on the sliding groove 1231 . A fixing plate 124 , the fixing plate 124 being disposed on the pressing rod 121 ; a spring 125 , the spring 125 being disposed between the pressing plate 122 and the fixing plate 124 ; A rotating rod 126 , the rotating rod 126 being rotatably disposed on the fixing plate 124 ; The sealing block 127 is provided at the bottom end of the rotating rod 126 and is used to seal the blanking cavity 1221 and compact the powder at the gap.

[0049] In this embodiment, by setting up an opening and closing component 12, the function of controlling the inflow and outflow of powder and compacting the powder is achieved, thereby preventing dust from flying and ensuring the quality of the brick body. The operation of the opening and closing component 12 ensures the orderly progress of the pressing process, avoids powder waste and environmental pollution, and ensures that the pressed brick body structure is uniform.

[0050] In detail, the pressure rod 121 cooperates with the pressure plate 122. When the pressure rod 121 moves up and down with the hydraulic rod 111 and the punch head 112 in the pressing assembly 11, the pressure plate 122 is driven to move together. When the pressure rod 121 moves upward, the pressure plate 122 drops relatively under the action of the spring 125, so that the material cavity 1221 opens, making it convenient for the material powder to enter the lifting mechanism 3, so that the material powder can be replenished to prepare for the next pressing. The limiting column 1211 cooperates with the limiting sleeve 123, and the limiting column 1211 slides in the slide groove 1231 of the limiting sleeve 123, limiting the movement trajectory of the pressure plate 122, so that it can only move up and down along a fixed direction, ensuring the stability of the movement of the pressure plate 122, and then ensuring the accurate opening and closing position of the material cavity 1221 to prevent the material powder from leaking.

[0051] The spring 125 cooperates with the pressing plate 122 and the fixed plate 124. When the pressing rod 121 is pressed down, the spring 125 is compressed and stores elastic potential energy; when the pressing rod 121 rises, the spring 125 releases the elastic potential energy and pushes the pressing plate 122 to move downward, thereby realizing the automatic opening of the blanking cavity 1221 without the need for an additional power device, saving energy and improving work efficiency. The rotating rod 126 cooperates with the sealing block 127, and the rotating rod 126 is rotatably set on the fixed plate 124. When the pressing plate 122 is pressed down to contact the powder, the rotating rod 126 drives the sealing block 127 to move downward to block the blanking cavity 1221, compacting the powder at the gap, preventing the powder from overflowing from the blanking cavity 1221 during the pressing process, avoiding dust flying, and ensuring the cleanliness of the pressing environment and the uniformity of the brick density.

[0052] Further, if Figures 8 to 10 As shown, the loosening assembly 13 includes: a loosening motor 131 , the loosening motor 131 being mounted on the fixing plate 124 ; a limit block 132 , which is disposed on the rotating rod 126 and is used to abut against the fixing plate 124 , thereby providing downward pressure to the sealing block 127 to compact the powder; The loosening blade 133 is provided on the rotating rod 126 and is used to break up the falling powder to make it more fluffy.

[0053] In this embodiment, the loosening component 13 is used to achieve the functions of breaking up the powder and assisting in compacting the powder, thereby improving the powder pressing effect and improving the quality of the brick. The loosening component 13 ensures that the powder is evenly dispersed before pressing, making the pressed brick structure more compact and uniform.

[0054] In detail, the loosening motor 131 cooperates with the rotating rod 126. After the loosening motor 131 is started, its output shaft drives the rotating rod 126 to rotate. The rotation of the rotating rod 126 causes the loosening blade 133 installed thereon to rotate. During the rotation, the loosening blade 133 comes into contact with the falling powder and breaks up the powder that may have originally agglomerated. In this way, the powder becomes more fluffy, and in the subsequent pressing process, the powder can be more fully filled and combined, and the pressed brick structure is more uniform and compact, which improves the strength and stability of the brick. The limit block 132 cooperates with the fixed plate 124. When the rotating rod 126 rotates with the loosening motor 131, the limit block 132 will move with the rotating rod 126. When the rotating rod 126 rotates to a specific position, the limit block 132 will abut against the fixed plate 124. At this time, the abutting action of the limit block 132 will apply an additional force to the rotating rod 126. This force is transmitted to the sealing block 127 through the rotating rod 126, providing downward pressure for the sealing block 127. Under the action of this pressure, the sealing block 127 can more effectively compact the powder at the gap of the blanking cavity to prevent powder leakage during the pressing process. At the same time, it also helps to improve the density of the brick during pressing and further improve the quality of the brick.

[0055] like Figures 6 and 7 As shown, a erosion-resistant magnesium-aluminum-carbon impact zone bottom-wrapped brick forming device further includes a blanking mechanism 2 arranged on the pressing mechanism 1, and the blanking mechanism 2 includes: A support plate 201, the support plate 201 is disposed on the punch head 112; Pressure sensors 202 are provided at each of the four corners of the support plate 201 to detect the weight of the falling powder; A hopper 203, the hopper 203 is provided on the support plate 201; a telescopic discharge elbow 204 , the telescopic discharge elbow 204 being in communication with the bottom of the hopper 203 and passing through the support plate 201 ; Solenoid valve 205, the solenoid valve 205 is provided on the telescopic material discharge elbow 204, and is used to control material discharge; The sealed feed cover 206 is provided on the pressing plate 122 and is in communication with the telescopic discharge elbow 204 .

[0056] In this embodiment, by setting up the unloading mechanism 2, the unloading amount can be accurately controlled and dust leakage can be prevented. In conjunction with the rotating component 32, uniform unloading can be achieved, ensuring stable brick quality and maintaining a clean production environment.

[0057] In detail, the support plate 201 provides an installation platform for the pressure sensor 202. The pressure sensor 202 monitors the weight changes of the hopper 203 and the powder, and transmits the signal to the control system. The control system controls the opening and closing of the solenoid valve 205 accordingly to achieve precise unloading and ensure uniform composition and stable performance of the brick body. The hopper 203 stores the powder and is connected to the telescopic unloading elbow 204. The solenoid valve 205 is installed on the telescopic unloading elbow 204 to control the unloading. The telescopic unloading elbow 204 can help the opening and closing component 12 to realize the opening and closing operation of the powder through its telescopic structure, so that it does not affect the unloading work. The sealed feed cover 206 connects the pressure plate 122 and the telescopic unloading elbow 204 to prevent powder leakage, reduce dust flying, and protect personnel health and brick quality.

[0058] like Figures 11 to 12 As shown, a erosion-resistant magnesium-aluminum-carbon impact zone bottom-wrapped brick forming device further includes a lifting mechanism 3 provided on the frame 100 and below the pressing mechanism 1, and the lifting mechanism 3 includes: A lifting assembly 31, wherein the lifting assembly 31 is provided on the frame 100; A rotating assembly 32 , the rotating assembly 32 being disposed on the lifting assembly 31 ; The rotating assembly 32 rotates when the powder falls, so that the powder falls evenly into the lifting mechanism 3. After the bricks are pressed, the bricks are pushed out through the lifting assembly 31.

[0059] In this embodiment, the lifting mechanism 3 is used to achieve the functions of uniform distribution of powder and pushing out the pressed bricks, thereby achieving the effect of improving the uniformity of brick quality and improving production efficiency. The lifting mechanism 3 ensures that the powder can enter the pressing area evenly and can quickly push out the formed bricks to prepare for the next pressing.

[0060] In detail, the rotating component 32 cooperates with the powder. When the powder falls, the rotating component 32 starts to rotate. The rotation of the rotating component 32 disperses the falling powder in the horizontal direction and can evenly fall into the corresponding area of the lifting mechanism 3. In this way, in the subsequent pressing process, the pressure on various parts of the brick body and the distribution of powder are more uniform, thereby improving the uniformity of the brick body quality. The lifting component 31 cooperates with the pressed brick. When the brick is pressed, the lifting component 31 starts to work and moves upward to push the pressed brick out of the pressing area. The formed brick can be quickly removed, saving the time of manual brick removal, improving production efficiency, and also reducing the errors and damage that may be caused by manual operation.

[0061] Further, if Figures 11 to 12 As shown, the lifting assembly 31 includes: A brick pressing chamber 311, the brick pressing chamber 311 is provided on the frame 100; A cylinder 312, wherein the cylinder 312 is disposed in a groove at the bottom of the frame 100; The push plate 313 is connected to the push rod of the cylinder 312 .

[0062] In this embodiment, the lifting assembly 31 is provided to realize the function of pushing the pressed bricks out of the brick pressing chamber, thereby achieving the effect of improving production efficiency and facilitating continuous production. The lifting assembly 31 can move the formed bricks out of the brick pressing chamber in time to provide conditions for the next round of pressing.

[0063] In detail, the cylinder 312 cooperates with the push plate 313, and the push rod of the cylinder 312 is connected to the push plate 313. When the brick is pressed in the brick pressing chamber 311, the cylinder 312 starts, and the push rod extends to push the push plate 313 to move upward. Under the push of the push rod, the push plate 313 pushes the brick in the brick pressing chamber 311 upward. This cooperation allows the brick to leave the brick pressing chamber smoothly without manual operation, saving time and manpower, and improving production efficiency.

[0064] Further, if Figures 11 to 12 As shown, the rotating assembly 32 includes: A sleeve barrel 321, which is sleeved on the brick pressing cavity 311; A bearing 322 is provided between the sleeve barrel 321 and the brick pressing cavity 311; A rotating motor 323 , the rotating motor 323 being mounted on the barrel 321 ; A driving gear 324 , the driving gear 324 being in driving connection with the output shaft of the rotating motor 323 ; The driven gear 325 is disposed on the brick pressing cavity 311 and is engaged with the driving gear 324 .

[0065] In this embodiment, a rotating assembly 32 is provided to assist the unloading mechanism 2 in unloading, thereby driving the brick pressing chamber 311 to rotate so that the powder is evenly distributed, thereby achieving the effect of improving the uniformity of brick quality and enhancing product stability.

[0066] In detail, the rotating motor 323 cooperates with the driving gear 324. When the rotating motor 323 is powered on, its output shaft rotates, driving the driving gear 324 connected to it to rotate synchronously. The driving gear 324 cooperates with the driven gear 325. When the driving gear 324 continues to rotate, it engages with the driven gear 325, driving the driven gear 325 to rotate. It can stably transmit the rotational motion of the driving gear 324 to the driven gear 325, ensuring the smooth rotation of the brick pressing chamber 311.

[0067] The driven gear 325 is fixed on the brick pressing chamber 311. When the driven gear 325 rotates, it drives the brick pressing chamber 311 to rotate synchronously. This allows the brick pressing chamber 311 to continuously change its position during the falling process of the powder material, so that the powder material is evenly scattered therein, avoiding local accumulation of the powder material, thereby making the structure and composition of each part of the pressed brick body more uniform, improving the quality of the brick body, and the barrel 321 provides a stable installation position for the rotating motor 323, so that the rotating motor 323 can work stably. At the same time, the barrel 321 is sleeved on the brick pressing chamber 311, the rotation generated by the rotating motor 323 is transmitted to the brick pressing chamber 311 to ensure the continuity of power transmission. The barrel 321 is sleeved on the outer ring of the bearing 322, and the inner ring of the bearing 322 is connected to the brick pressing chamber 311. When the barrel 321 rotates with the rotating motor 323, the rolling element of the bearing 322 rolls between the inner and outer rings, which greatly reduces the friction resistance between the barrel 321 and the brick pressing chamber 311, so that the barrel 321 can smoothly drive the brick pressing chamber 311 to rotate, reduce energy loss, and extend the service life of the equipment.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A erosion-resistant magnesium-aluminum-carbon impact zone bottom brick, characterized in that: It includes a main material layer and a bonding layer spirally built into the main material layer; The raw materials of the main material layer include brown corundum particles, plate-shaped corundum, fused magnesia, metallic aluminum powder, silicon carbide powder, graphite and resin; The raw material of the bonding layer includes resin.

2. The erosion-resistant magnesium-aluminum-carbon impact zone bottom brick according to claim 1, characterized in that: The ratio of the main material layer to the bonding layer is 10:1-15:

1.

3. The erosion-resistant magnesium-aluminum-carbon impact zone bottom brick according to claim 1, characterized in that: The resin material is a composite phenolic resin with a viscosity of 13000-15000 mPa·s.

4. The erosion-resistant magnesium-aluminum-carbon impact zone bottom brick according to claim 1, characterized in that: The brown corundum particles contain Al2O3≥95.0%, Fe2O3≤0.5%, and SiO2≤1.5%; The plate-shaped corundum contains Al2O3≥99.0%, Fe2O3≤0.1%, SiO2≤0.2%, and Na2O≤0.2%; The silicon carbide powder contains SiC ≥ 95% and free carbon C ≤ 0.3%.

5. A forming method for forming the erosion-resistant magnesium-aluminum-carbon impact zone bottom-clad brick according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, mixing brown corundum particles, plate corundum, fused magnesia, aluminum powder, silicon carbide powder, graphite, and resin to form the main material, and placing it into a hopper, and then placing the resin into another hopper; S2, molding, the main material enters through the opening and closing component, and is fully broken up by the loosening component, and then evenly enters the brick pressing cavity. At the same time, as the brick pressing cavity rotates, the resin enters the brick pressing cavity from the other side and is laid behind the main material. The resin forms a spiral distribution structure in the main material. After the filling is completed, the pressing component pre-punches the filled material; S3. Output: After the pressing is completed, the bottom brick is formed and pushed out from the brick pressing cavity for collection.

6. A molding method according to claim 5, characterized in that: The pressing assembly comprises: a hydraulic rod, wherein the hydraulic rod is arranged on the frame; A punching head is installed on the top rod of the hydraulic rod.

7. A molding method according to claim 6, characterized in that: The opening and closing assembly comprises: A pressure rod, which is arranged at the bottom of the punch head and has a limiting column; A pressing plate, wherein a blanking cavity is provided inside the pressing plate; A limiting sleeve, the limiting sleeve is arranged on the pressure plate, and a sliding groove is opened on the limiting sleeve, and the limiting column is slidably arranged on the sliding groove; A fixing plate, the fixing plate being arranged on the pressure rod; a spring, the spring being arranged between the pressure plate and the fixing plate; a rotating rod, the rotating rod being rotatably disposed on the fixed plate; A sealing block is provided at the bottom end of the rotating rod and is used for sealing the blanking cavity to compact the powder at the notch.

8. A molding method according to claim 7, characterized in that: The loosening assembly comprises: a loosening motor, the loosening motor being mounted on the fixing plate; a limit block, the limit block being provided on the rotating rod and being used to abut against the fixing plate, thereby providing downward pressure to the sealing block to compact the powder; The loosening rotary blade is provided on the rotating rod and is used to break up the falling powder to make it more fluffy.

9. A molding method according to claim 5, characterized in that: During the preparation of a single bottom-wrapped brick, the S2 cycle is performed at least twice.

10. A molding method according to claim 5, characterized in that: In said S2, when the pressing assembly is pressed, the mass of a single brick is ≥15Kg, and the number of punching times is not less than 12 times.

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