Efficient ball-milling mixer for silicon carbide powder

Abstract

The invention discloses an efficient silicon carbide powder ball-milling mixer, and relates to the technical field of ball mills, the efficient silicon carbide powder ball-milling mixer comprises a grinding and mixing assembly, and a separating and discharging assembly is arranged in the grinding and mixing assembly. When the device is used, in the crushing and grinding process of silicon carbide raw materials, grinding steel ball parts are blocked on one side of the double-layer grating plate, silicon carbide powder enters the other side through the double-layer grating plate, and the grinding steel ball parts and the silicon carbide powder are prevented from being discharged together. Meanwhile, the inclined material containing plate is used for containing the powder, and the powder is poured into the conical material receiving hopper and enters the discharging barrel through the feeding hole. A discharging motor is started, a solid gear drives a rotating chain to rotate, a spring telescopic rod drives a discharging plate to rotate, and silicon carbide powder is pushed to move towards a discharging hole, so that the effect of independently discharging the powder is achieved, shutdown work is not needed, continuous grinding machining can be achieved, and the continuity of the production process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ball mills, and particularly to a high-efficiency ball mill mixer for silicon carbide powder. Background Art

[0002] A ball mill is a device used for grinding materials. Silicon carbide is a compound composed of silicon and carbon, which has characteristics such as high hardness, high melting point, high thermal conductivity, good chemical stability, and electrical properties. During the processing of silicon carbide, a ball mill is usually used to impact and grind it, gradually breaking it into fine powders to meet the requirements of subsequent processes such as forming and sintering for the powder particle size. The ball mill mixer consists of multiple parts, and the grinding balls are one of the important parts. When the cylinder rotates, the grinding balls are brought to a certain height under the action of centrifugal force and friction, and then fall to impact and grind the materials in the cylinder, thereby gradually reducing the material particles.

[0003] In the prior art, when the ball mill mixer is in use, a feed inlet is provided at the port of the cylinder, and a discharge outlet is provided in the middle of the cylinder. The discharge outlet is sealed by a discharge door. When the silicon carbide is ground, the discharge door is opened for discharging. During the discharging process, the grinding balls will be discharged together with the ground silicon carbide powder. Workers need to separate the grinding balls and then put them back into the cylinder again, which is cumbersome and has a large labor intensity. Especially for large ball mills, the number of grinding balls is numerous, increasing the workload and working difficulty of workers. After discharging the silicon carbide powder, the discharge outlet also needs to be sealed again, and the equipment downtime is relatively long, affecting the continuity of the production process and reducing the production efficiency.

[0004] Therefore, we propose a high-efficiency ball mill mixer for silicon carbide powder to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-efficiency ball mill mixer for silicon carbide powder to solve the problems that when the ball mill mixer discharges materials, the grinding balls will be discharged together with the powder, and workers need to separate the grinding balls and put them into the cylinder, and then seal the discharge outlet again, which is cumbersome and has a large labor intensity, and the equipment downtime is relatively long, affecting the continuity of the production process and reducing the production efficiency as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A high-efficiency ball mill mixer for silicon carbide powder, including a grinding and mixing assembly, and a partitioned discharge assembly is arranged inside the grinding and mixing assembly. The grinding and mixing assembly is used for grinding the silicon carbide powder, and the partitioned discharge assembly is used for separating the grinding balls and discharging the silicon carbide powder alone; The grinding and mixing assembly includes a grinding cylinder, and grinding steel balls are arranged inside the grinding cylinder. Three different textures are arranged on the outer surface of the grinding steel balls; The separation and discharging assembly includes a discharging cylinder and a double-layer grid plate. A conical material receiving hopper is installed on the outer surface of one end of the discharging cylinder through bolts. The double-layer grid plate is used for separating the grinding steel balls and allowing silicon carbide powder to pass through. The conical material receiving hopper is used for collecting the silicon carbide powder passing through the double-layer grid plate and centrally conveying it into the discharging cylinder. The discharging cylinder is used for discharging the silicon carbide powder from the inside of the grinding cylinder.

[0007] Preferably, the separation and discharging assembly further includes a rotating chain. A spring telescopic rod is fixedly installed at the bottom of the rotating chain, and a discharging plate is fixedly installed at the bottom end of the spring telescopic rod. A connecting cylinder is installed on the other end of the discharging cylinder through bolts. A discharging motor is fixedly installed inside the connecting cylinder, and a solid gear is fixedly installed at the output end of the discharging motor. The outer surface of the solid gear is meshed with the rotating chain.

[0008] Preferably, an inclined adjusting rod and a horizontal rod are fixedly installed inside the discharging cylinder. A fixing rod is fixedly installed at the top of the discharging plate, and a C-shaped ring is fixedly installed at one end of the fixing rod. The C-shaped ring is movably sleeved on the outer surface of the inclined adjusting rod. A discharging hole is formed in the outer surface of the discharging cylinder near the connecting cylinder.

[0009] Preferably, an annular guide rail is fixedly installed inside the discharging cylinder near the horizontal rod. A rotating groove is formed inside the annular guide rail, and a sliding hole is formed at the bottom of the annular guide rail. The outer surface of the rotating chain is movably embedded inside the rotating groove.

[0010] Preferably, the outer surfaces of the top ends of the spring telescopic rods are movably embedded inside the sliding holes. A feeding hole is formed in the outer surface of the discharging cylinder near the conical material receiving hopper. An installation ring is installed on the outer surface of one side of the double-layer grid plate through bolts, and the outer surface of the installation ring is fixedly installed on the inner wall of the grinding cylinder. The two ends of the inclined adjusting rod are respectively fixedly connected with the two ends of the horizontal rod.

[0011] Preferably, the grinding and mixing assembly further includes two hollow shafts and a bottom plate. Support seats are arranged on the outer surfaces of one ends of the two hollow shafts. A feeder is arranged at one end of one of the hollow shafts. A large gear is fixedly installed on the outer surface of the grinding cylinder. A grinding motor, a speed reducer, and a bearing seat are sequentially arranged on the top of the bottom plate, and a bearing rod is arranged inside the bearing seat.

[0012] Preferably, a small gear is fixedly installed at one end of the bearing rod. The outer surface of the small gear meshes with the outer surface of a large gear. The two hollow shafts are respectively connected to both sides of the grinding cylinder through bolts. The output end of the grinding motor is fixedly connected to the input end of the reducer. The other end of the bearing rod is fixedly connected to the output end of the reducer.

[0013] Preferably, a plurality of sliding mounting holes are fixedly formed inside the grinding cylinder away from the large gear. Sliding mounting strips are movably embedded inside the plurality of sliding mounting holes. Inclined material receiving plates are fixedly installed on the outer surfaces of one sides of the plurality of sliding mounting strips. The plurality of sliding mounting strips are connected to the grinding cylinder through bolts. The outer surfaces of one sides of the plurality of inclined material receiving plates are in contact with the outer surface of the other side of the double-layer grid plate.

[0014] Preferably, a rubber protection ring is fixedly connected to the outer surface of the discharge cylinder near the conical material receiving hopper. The outer surface of the rubber protection ring is in contact with the inner wall of the other hollow shaft.

[0015] Preferably, a first support frame is movably sleeved on the outer surface of the discharge cylinder. The discharge cylinder is connected to the first support frame through a connecting member. A second support frame is fixedly installed on the outer surface of the connecting cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the present invention is in use, during the crushing and grinding process of the silicon carbide raw material, the grinding steel ball parts are blocked on one side of the double-layer grid plate, and the silicon carbide powder passes through the double-layer grid plate and enters the other side, avoiding the discharge of the grinding steel ball parts together with the silicon carbide powder. At the same time, the inclined material receiving plate scoops up the powder and pours it into the conical material receiving hopper, and enters the discharge cylinder through the feed hole. Start the discharge motor, drive the rotating chain to rotate through the solid gear, and the spring telescopic rod drives the discharge plate to rotate, pushing the silicon carbide powder to move towards the discharge hole, thereby achieving the effect of discharging the powder separately. Under the action of the separating discharge assembly, the separation of the grinding balls and the powder can be realized, avoiding the discharge of the grinding balls together, reducing the subsequent separation and steel ball feeding work, and maximizing the discharge of the powder. There is no need to stop the machine, and continuous grinding processing can be carried out, improving the continuity of the production process.

[0017] 2. When the present invention is in use, the feeder conveys the silicon carbide raw material into the grinding cylinder. Start the grinding motor, and the reducer transmits the power to the bearing rod, driving the small gear and the large gear to rotate, driving the grinding cylinder to rotate, driving the grinding steel balls with different textures and the silicon carbide raw material to rotate, making the silicon carbide raw material broken into powder and mixed. Three different textures are arranged on the outer surface of the grinding steel ball, namely spiral winding, diamond pattern distribution and grid pattern, which are beneficial to generate stronger extrusion and shearing effects on the material, making the material easier to be broken and ground, and realizing efficient grinding.

[0018] 3. When the present invention is in use, separate the hollow shaft from the grinding cylinder, take out the partition discharging assembly, and then sequentially remove the inclined material receiving plate, and the double-layer grid plate can be taken out, which is convenient for cleaning or replacing the double-layer grid plate. Separate the connecting cylinder from the discharging cylinder, remove the first support frame from the outer surface of the discharging cylinder, and then draw out the hollow shaft from the outer surface of the discharging cylinder, so that the hollow shaft can be separated from the partition discharging assembly, which is convenient for installing the partition discharging assembly into other grinding and mixing assemblies for use, improving flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a first-angle perspective view of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 2 is a second-angle perspective view of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 3 is a structural sectional view of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 4 is a structural sectional view of a grinding and mixing assembly of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 5 is a structural sectional view of a grinding cylinder of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 6 is a structural sectional view of a partition discharging assembly of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 7 is a structural sectional view of a discharging cylinder of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 8 is an unfolded perspective view of a structure of an inclined adjusting rod of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention; Figure 9 is an unfolded perspective view of a structure of an annular guide rail of a high-efficiency ball mill mixer for silicon carbide powder according to the present invention.

[0020] In the figure: 1. Grinding and mixing assembly; 101. Grinding cylinder; 102. Hollow shaft; 103. Support base; 104. Feeder; 105. Large gear; 106. Bottom plate; 107. Grinding motor; 108. Reducer; 109. Bearing seat; 110. Bearing rod; 111. Small gear; 112. Grinding steel balls; 113. Sliding mounting hole; 114. Sliding mounting strip; 115. Inclined material holding plate; 2. Partitioning and discharging assembly; 201. Discharge cylinder; 202. Double-layer grid plate; 203. Mounting ring; 204. Conical receiving hopper; 205. Rubber protection ring; 206. Annular guide rail; 207. Rotating groove; 208. Rotating chain; 209. Spring telescopic rod; 210. Discharge plate; 211. Fixed rod; 212. C-shaped ring; 213. Inclined adjusting rod; 214. Discharge motor; 215. Solid gear; 216. Connecting cylinder; 217. Discharge hole; 218. Slide hole; 219. First support frame; 220. Second support frame; 221. Feed hole; 222. Horizontal rod. Detailed implementation mode

[0021] 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.

[0022] Example 1: Please refer to Figures 1-9As shown in the figure, the present invention provides a technical solution: a high-efficiency ball milling mixer for silicon carbide powder, which includes a grinding and mixing assembly 1. A separation and discharging assembly 2 is arranged inside the grinding and mixing assembly 1. The grinding and mixing assembly 1 is used for grinding silicon carbide powder, and the separation and discharging assembly 2 is used for separating grinding balls and discharging silicon carbide powder separately; the grinding and mixing assembly 1 includes a grinding cylinder 101, and grinding steel balls 112 are arranged inside the grinding cylinder 101. Three different textures are arranged on the outer surface of the grinding steel balls 112;The separating and discharging assembly 2 includes a discharging cylinder 201 and a double-layer grid plate 202. A conical material receiving hopper 204 is installed on the outer surface at one end of the discharging cylinder 201 through bolts. The double-layer grid plate 202 is used to separate the grinding steel balls 112 and allow the silicon carbide powder to pass through. The conical material receiving hopper 204 is used to collect the silicon carbide powder passing through the double-layer grid plate 202 and centrally convey it into the discharging cylinder 201. The discharging cylinder 201 is used to discharge the silicon carbide powder from inside the grinding cylinder 101. The separating and discharging assembly 2 further includes a rotating chain 208. A spring telescopic rod 209 is fixedly installed at the bottom of the rotating chain 208. A discharging plate 210 is fixedly installed at the bottom end of the spring telescopic rod 209. A connecting cylinder 216 is installed at the other end of the discharging cylinder 201 through bolts. A discharging motor 214 is fixedly installed inside the connecting cylinder 216. A solid gear 215 is fixedly installed at the output end of the discharging motor 214. The outer surface of the solid gear 215 is meshed with the rotating chain 208. An inclined adjusting rod 213 and a horizontal rod 222 are fixedly installed inside the discharging cylinder 201. A fixing rod 211 is fixedly installed at the top of the discharging plate 210. A C-shaped ring 212 is fixedly installed at one end of the fixing rod 211. The C-shaped ring 212 is movably sleeved on the outer surface of the inclined adjusting rod 213. A discharging hole 217 is opened on the outer surface of the discharging cylinder 201 near the connecting cylinder 216. An annular guide rail 206 is fixedly installed inside the discharging cylinder 201 near the horizontal rod 222. A rotating groove 207 is opened inside the annular guide rail 206. A sliding hole 218 is opened at the bottom of the annular guide rail 206. The outer surface of the rotating chain 208 is movably embedded inside the rotating groove 207. The outer surfaces at the top ends of multiple spring telescopic rods 209 are all movably embedded inside the sliding hole 218. A feeding hole 221 is opened on the outer surface of the discharging cylinder 201 near the conical material receiving hopper 204. An installation ring 203 is installed on the outer surface of one side of the double-layer grid plate 202 through bolts. The outer surface of the installation ring 203 is fixedly installed on the inner wall of the grinding cylinder 101. The two ends of the inclined adjusting rod 213 are respectively fixedly connected to the two ends of the horizontal rod 222. Multiple sliding installation holes 113 are fixedly opened inside the grinding cylinder 101 far from the large gear 105. Multiple sliding installation bars 114 are movably embedded inside the multiple sliding installation holes 113. Inclined material receiving plates 115 are fixedly installed on the outer surfaces of one sides of the multiple sliding installation bars 114. The multiple sliding installation bars 114 are connected to the grinding cylinder 101 through bolts. The outer surfaces of one sides of the multiple inclined material receiving plates 115 are all in contact with the outer surface of the other side of the double-layer grid plate 202. A rubber protection ring 205 is fixedly connected to the outer surface of the discharging cylinder 201 near the conical material receiving hopper 204. The outer surface of the rubber protection ring 205 is in contact with the inner wall of another hollow shaft 102. A first support frame 219 is movably sleeved on the outer surface of the discharging cylinder 201. The discharging cylinder 201 and the first support frame 219 are connected through a connecting piece. A second support frame 220 is fixedly installed on the outer surface of the connecting cylinder 216.;

[0023] In this embodiment, during use, when the grinding and mixing assembly 1 rotates, it drives the hollow shaft 102 on the right side to rotate on the outer surfaces of the discharge cylinder 201 and the conical receiving hopper 204. At the same time, it drives the mounting ring 203 and the double-layer grid plate 202 to rotate together. The double-layer grid plate 202 blocks the silicon carbide raw materials with larger particle sizes and the grinding steel balls 112, enabling them to be fully pulverized and ground in the grinding cylinder 101. When the silicon carbide raw materials are ground into powder, the grinding steel balls 112 are blocked on the left side of the double-layer grid plate 202, and the silicon carbide powder enters the interior of the right side of the grinding cylinder 101 through the plate holes of the double-layer grid plate 202. The double-layer grid plate 202 separates the grinding steel balls 112 to prevent them from being discharged together with the silicon carbide powder. As the grinding cylinder 101 continues to rotate, it drives a plurality of inclined material receiving plates 115 to rotate together, scooping up the silicon carbide powder that has fallen onto the inner bottom surface of the grinding cylinder 101 and rising with it. When the inclined material receiving plate 115 rotates to the top, the scooped-up silicon carbide powder falls downward into the conical receiving hopper 204 under the action of gravity, and then enters the discharge cylinder 201 through the feed hole 221. A rubber protective ring 205 is used for protection between the hollow shaft 102 and the discharge cylinder 201 to prevent the silicon carbide powder from accidentally floating to the outside through the space between the hollow shaft 102 and the discharge cylinder 201 with the air flow, causing waste. The discharge motor 214 is started in advance to drive the solid gear 215 to rotate, further driving the rotating chain 208 to rotate annularly inside the rotating groove 207. At the same time, it drives the spring telescopic rod 209 to rotate inside the sliding hole 218, causing the discharge plate 210 to rotate annularly, and driving the C-shaped ring 212 to slide from the inclined adjusting rod 213 to the outer surface of the horizontal rod 222 through the fixed rod 211. The inclined adjusting rod 213 is located in the front position, and the horizontal rod 222 is located in the rear position. When the discharge plate 210 rotates from the inclined adjusting rod 213 to the horizontal rod 222, the spring telescopic rod 209 is fully extended, and the bottom of the discharge plate 210 contacts the inner bottom surface of the discharge cylinder 201, thereby pushing the silicon carbide powder that has fallen into the discharge cylinder 201 through the feed hole 221 to the right, causing the silicon carbide powder to move towards the discharge hole 217 and be discharged through the discharge hole 217, thus achieving the effect of discharging the powder separately. As the rotating chain 208 continues to rotate, the C-shaped ring 212 gradually slides from the outer surface of the horizontal rod 222 to the inclined adjusting rod 213. The inclined adjusting rod 213 is arranged to be upwardly inclined and has a height higher than that of the horizontal rod 222, such as Figure 8As shown in the figure, when the C-shaped ring 212 slides on the tilt adjustment rod 213, it drives the discharge plate 210 to move upward through the fixed rod 211, and squeezes the spring telescopic rod 209, so that the discharge plate 210 moves upward a certain distance while rotating, so that the bottom of the discharge plate 210 does not contact the inner bottom surface of the discharge cylinder 201, preventing part of the powder from being accidentally pushed to the corner when the discharge plate 210 moves to the left, affecting the normal discharge of the powder. Under the action of the separation discharge assembly 2, the separation of the grinding balls and the powder can be realized, avoiding the discharge of the grinding balls together, reducing the subsequent separation and steel ball feeding work, and maximizing the discharge of the powder. There is no need to stop the machine, and continuous grinding processing can be carried out, improving the continuity of the production process. It solves the problem that when the nodular graphite mixer discharges materials, the grinding balls will be discharged together with the powder. After the staff separates the grinding balls, they need to put them into the cylinder and then seal the discharge port again, which is cumbersome and labor-intensive, and the equipment downtime is long, affecting the continuity of the production process and reducing the production efficiency.

[0024] Embodiment 2: As Figures 1-5 shown, the grinding and mixing assembly 1 includes a grinding cylinder 101. The inside of the grinding cylinder 101 is provided with grinding steel balls 112. The outer surface of the grinding steel balls 112 is provided with three different textures. The grinding and mixing assembly 1 also includes two hollow shafts 102 and a bottom plate 106. Support seats 103 are arranged on the outer surfaces of one ends of the two hollow shafts 102. A feeder 104 is arranged at one end of one of the hollow shafts 102. A large gear 105 is fixedly installed on the outer surface of the grinding cylinder 101. A grinding motor 107, a speed reducer 108 and a bearing seat 109 are arranged in sequence on the top of the bottom plate 106. A bearing rod 110 is arranged inside the bearing seat 109. One end of the bearing rod 110 is fixedly installed with a small gear 111. The outer surface of the small gear 111 meshes with the outer surface of the large gear 105. The two hollow shafts 102 are respectively connected to both sides of the grinding cylinder 101 by bolts. The output end of the grinding motor 107 is fixedly connected to the input end of the speed reducer 108. The other end of the bearing rod 110 is fixedly connected to the output end of the speed reducer 108.

[0025] In this embodiment, during use, the silicon carbide raw material is conveyed into the hollow shaft 102 connected thereto through the feeder 104, and then conveyed into the interior of the grinding cylinder 101 through the hollow shaft 102. The grinding motor 107 is started to provide power for the rotation of the grinding cylinder 101. The power is transmitted to the bearing rod 110 through the reducer 108 to realize the rotation of the pinion 111, and then drive the large gear 105 to rotate, further driving the grinding cylinder 101 to rotate, and at the same time driving the two hollow shafts 102 to rotate on the outer surfaces of the two support seats 103, the feeder 104 and the discharge cylinder 201 respectively. The reducer 108 is used to convert the high-speed rotation of the grinding motor 107 into the appropriate rotation speed required by the grinding cylinder 101 and transmit the torque. As the grinding cylinder 101 rotates, it drives the grinding steel balls 112 and the silicon carbide raw material inside it to rotate. Under the action of centrifugal force and friction, the grinding steel balls 112 rise to a certain height with the grinding cylinder 101 and then fall under the action of gravity, impacting and grinding the silicon carbide raw material in the grinding cylinder 101. At the same time, the friction between the grinding steel balls 112 and between the grinding steel balls 112 and the inner wall of the grinding cylinder 101 will also produce shearing and friction effects on the silicon carbide particles, gradually breaking the silicon carbide particles into smaller powders. Since the movement trajectories and impact forces of the grinding steel balls 112 of different sizes and weights in the grinding cylinder 101 are different, the silicon carbide particles can be ground in multiple levels and from multiple angles, thus achieving an efficient crushing effect. As the grinding steel balls 112 move, the silicon carbide powder is continuously thrown up, fallen and tumbled in the grinding cylinder 101, forming a complex flow state. This flow enables the silicon carbide powders at different positions and with different particle sizes to fully contact and exchange positions, thereby achieving uniform mixing. Under the action of the grinding and mixing assembly 1, the efficient grinding and mixing processing of silicon carbide is realized. The interior of the grinding cylinder 101 is filled with grinding steel balls 112 of different sizes and weights. The grinding steel balls 112 in the figure are only schematic diagrams and do not represent the specific quantity. Classified according to the surface texture, the grinding steel balls 112 are mainly divided into three types, such as Figure 3As shown in the figure, the texture on the outer surface of the first type of grinding steel ball 112 is spiral. When the grinding steel ball 112 with such spiral texture rolls, the spiral texture can guide the material to move along the spiral direction, increasing the movement path and residence time of the material on the surface of the steel ball, enabling the material to be ground more fully. Moreover, the shear force and frictional force generated by the spiral texture contribute to the crushing and refinement of the material particles, improving the grinding efficiency. The texture on the outer surface of the second type of grinding steel ball 112 consists of multiple diamond patterns, which are evenly distributed on the outer surface. The edges of the diamond texture can increase the contact points and contact area between the grinding steel ball 112 and the material. During the rolling and collision of the grinding steel ball 112, these edges exert a stronger squeezing and shearing effect on the material, making the material easier to be broken and ground. In addition, the grooves between the diamond textures can accommodate the material particles, forming a local grinding area and improving the grinding effect. The texture on the outer surface of the third type of grinding steel ball 112 consists of intersecting lines that form a grid covering the outer surface. During the movement of the grinding steel ball 112, the intersection points and the edges of the lines of the grid exert a cutting and crushing effect on the material, improving the grinding effect and achieving efficient grinding.

[0026] Embodiment 3: As Figures 1-7 shown in the figure, the grinding and mixing assembly 1 includes a grinding cylinder 101. The inside of the grinding cylinder 101 is provided with grinding steel balls 112. The grinding and mixing assembly 1 further includes two hollow shafts 102 and a bottom plate 106. The two hollow shafts 102 are respectively connected to both sides of the grinding cylinder 101 by bolts. The other end of the discharge cylinder 201 is installed with a connecting cylinder 216 by bolts. The outer surface of the discharge cylinder 201 is movably sleeved with a first support frame 219. The discharge cylinder 201 and the first support frame 219 are connected by a connecting member. The outer surface of the connecting cylinder 216 is fixedly installed with a second support frame 220. Multiple sliding mounting holes 113 are fixedly opened inside the grinding cylinder 101 away from the large gear 105. Sliding mounting strips 114 are movably embedded inside the multiple sliding mounting holes 113. One side outer surfaces of the multiple sliding mounting strips 114 are all fixedly installed with inclined material receiving plates 115. The multiple sliding mounting strips 114 and the grinding cylinder 101 are connected by bolts. One side outer surface of the double-layer grille plate 202 is installed with a mounting ring 203 by bolts. The outer surface of the mounting ring 203 is fixedly installed on the inner wall of the grinding cylinder 101.

[0027] In this embodiment, during use, the sliding mounting bar 114 is fixed inside the sliding mounting hole 113 by bolts. Unscrew the bolts at the connection between the hollow shaft 102 on the right side and the grinding cylinder 101, and the hollow shaft 102 can be separated from the grinding cylinder 101. Take out the partition discharging assembly 2 from inside the grinding cylinder 101, then remove the inclined material receiving plate 115 in sequence, and finally remove the connection bolts between the double-layer grid plate 202 and the mounting ring 203, and the double-layer grid plate 202 can be taken out, which is convenient for cleaning or replacing the double-layer grid plate 202. A plurality of connecting pieces are installed on the outer surface of the first support frame 219 by bolts, and the connecting pieces are fixed to the discharging cylinder 201 by bolts. Remove the connection bolts between the connecting cylinder 216 and the discharging cylinder 201, remove the bolts between the connecting pieces and the first support frame 219 and the discharging cylinder 201, then separate the connecting cylinder 216 from the discharging cylinder 201, remove the first support frame 219 from the outer surface of the discharging cylinder 201, and finally slide the hollow shaft 102 out from the outer surface of the discharging cylinder 201, and the hollow shaft 102 can be separated from the partition discharging assembly 2, which is convenient for installing the partition discharging assembly 2 into other grinding and mixing assemblies 1 for use, improving flexibility.

[0028] The effects achieved by the entire mechanism and its working principle are as follows: The silicon carbide raw material is conveyed into the interior of the grinding cylinder 101 through the feeder 104. The grinding motor 107 is started, and the reducer 108 transmits the power to the bearing rod 110 to achieve the rotation of the pinion 111. Then, the large gear 105 is driven to rotate, further driving the grinding cylinder 101 to rotate, driving the multiple grinding steel balls 112 with different textures and the silicon carbide raw material inside it to rotate. Under the action of centrifugal force and friction, the grinding steel balls 112 rise to a certain height with the grinding cylinder 101 and then fall under the action of gravity, impacting and grinding the silicon carbide raw material in the grinding cylinder 101, gradually crushing the silicon carbide particles into powder. At the same time, the silicon carbide powder is continuously thrown up, fallen, and tumbled in the grinding cylinder 101 to achieve uniform mixing. Classified by the surface texture, the grinding steel balls 112 are mainly divided into three types. The texture on the outer surface of the first type of grinding steel ball 112 is in a spiral shape. The texture on the outer surface of the second type of grinding steel ball 112 consists of multiple diamond patterns, evenly distributed on the outer surface. The texture on the outer surface of the third type of grinding steel ball 112 consists of intersecting lines forming a grid-like covering on the outer surface to achieve efficient grinding. When the grinding and mixing assembly 1 rotates, it drives the mounting ring 203 and the double-layer grid plate 202 to rotate together. The double-layer grid plate 202 blocks the silicon carbide raw material with larger particle sizes and the grinding steel balls 112, enabling them to be fully crushed and ground in the grinding cylinder 101. When the silicon carbide raw material is ground into powder, the grinding steel balls 112 are blocked on the left side of the double-layer grid plate 202, and the silicon carbide powder enters the interior of the right side of the grinding cylinder 101 through the plate holes of the double-layer grid plate 202. During this process, the inclined material holding plate 115 holds up the silicon carbide powder and rises with it. When the inclined material holding plate 115 rotates to the top, the held-up silicon carbide powder falls downward into the conical material receiving hopper 204 under the action of gravity, and then enters the discharge cylinder 201 through the feed hole 221. The discharge motor 214 is started in advance to drive the solid gear 215 to rotate, further driving the rotating chain 208 to rotate. At the same time, the spring telescopic rod 209 drives the discharge plate 210 to rotate, and through the fixed rod 211, the C-shaped ring 212 slides from the inclined adjusting rod 213 to the outer surface of the horizontal rod 222. When the discharge plate 210 rotates from the inclined adjusting rod 213 to the horizontal rod 222, the spring telescopic rod 209 is fully extended, and the bottom of the discharge plate 210 contacts the inner bottom surface of the discharge cylinder 201, pushing the silicon carbide powder to move and discharging it through the discharge hole 217. As the rotating chain 208 continues to rotate, the C-shaped ring 212 gradually slides from the outer surface of the horizontal rod 222 to the inclined adjusting rod 213. When the C-shaped ring 212 slides on the inclined adjusting rod 213, it drives the discharge plate 210 to move upward through the fixed rod 211 and compresses the spring telescopic rod 209, causing the discharge plate 210 to move upward a certain distance while rotating, so that the bottom of the discharge plate 210 does not contact the inner bottom surface of the discharge cylinder 201.

[0029] Among them, the grinding motor 107, the speed reducer 108, and the discharging motor 214 are all prior arts, and their components and operating principles are all publicly known technologies, and will not be explained in detail here.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient ball milling mixer for silicon carbide powder, comprising a grinding and mixing assembly (1), characterized in that: A separation and discharging component (2) is arranged inside the grinding and mixing component (1). The grinding and mixing component (1) is used for grinding silicon carbide powder, and the separation and discharging component (2) is used for separating grinding balls and discharging the silicon carbide powder separately; The grinding and mixing component (1) includes a grinding cylinder (101). Grinding steel balls (112) are arranged inside the grinding cylinder (101), and three different textures are arranged on the outer surface of the grinding steel balls (112); The separation and discharging component (2) includes a discharging cylinder (201) and a double-layer grid plate (202). A conical receiving hopper (204) is installed on the outer surface of one end of the discharging cylinder (201) through bolts. The double-layer grid plate (202) is used for separating the grinding steel balls (112) and allowing the silicon carbide powder to pass through. The conical receiving hopper (204) is used for collecting the silicon carbide powder passing through the double-layer grid plate (202) and centrally conveying it into the discharging cylinder (201). The discharging cylinder (201) is used for discharging the silicon carbide powder from inside the grinding cylinder (101).

2. The high-efficiency ball milling mixer for silicon carbide powder according to claim 1, wherein: The separation and discharging component (2) further includes a rotating chain (208). A spring telescopic rod (209) is fixedly installed at the bottom of the rotating chain (208). A discharging plate (210) is fixedly installed at the bottom end of the spring telescopic rod (209). A connecting cylinder (216) is installed on the other end of the discharging cylinder (201) through bolts. A discharging motor (214) is fixedly installed inside the connecting cylinder (216). A solid gear (215) is fixedly installed at the output end of the discharging motor (214). The outer surface of the solid gear (215) is meshed and connected with the rotating chain (208).

3. The high-efficiency ball milling and mixing machine for silicon carbide powder according to claim 2, characterized in that: An inclined adjusting rod (213) and a horizontal rod (222) are fixedly installed inside the discharging cylinder (201). A fixing rod (211) is fixedly installed at the top of the discharging plate (210). A C-shaped ring (212) is fixedly installed at one end of the fixing rod (211). The C-shaped ring (212) is movably sleeved on the outer surface of the inclined adjusting rod (213). A discharging hole (217) is formed in the outer surface of the discharging cylinder (201) near the connecting cylinder (216).

4. The high-efficiency ball milling mixer for silicon carbide powder according to claim 3, wherein: An annular guide rail (206) is fixedly installed inside the discharging cylinder (201) near the horizontal rod (222). A rotating groove (207) is formed inside the annular guide rail (206). A sliding hole (218) is formed at the bottom of the annular guide rail (206). The outer surface of the rotating chain (208) is movably embedded inside the rotating groove (207).

5. The high-efficiency ball milling and mixing machine for silicon carbide powder according to claim 4, wherein: The outer surfaces at the top ends of the spring telescopic rods (209) are all movably embedded inside the sliding holes (218). A feeding hole (221) is formed in the outer surface of the discharging cylinder (201) near the conical receiving hopper (204). An installation ring (203) is installed on the outer surface of one side of the double-layer grid plate (202) through bolts. The outer surface of the installation ring (203) is fixedly installed on the inner wall of the grinding cylinder (101). The two ends of the inclined adjusting rod (213) are fixedly connected to the two ends of the horizontal rod (222) respectively.

6. The high-efficiency ball milling mixer for silicon carbide powder according to claim 2, wherein: The grinding and mixing assembly (1) further includes two hollow shafts (102) and a bottom plate (106). Support seats (103) are arranged on the outer surfaces of one ends of the two hollow shafts (102). A feeder (104) is arranged at one end of one of the hollow shafts (102). A large gear (105) is fixedly installed on the outer surface of the grinding cylinder (101). A grinding motor (107), a speed reducer (108) and a bearing seat (109) are successively arranged on the top of the bottom plate (106). A bearing rod (110) is arranged inside the bearing seat (109).

7. The high-efficiency ball milling mixer for silicon carbide powder according to claim 6, wherein: One end of the bearing rod (110) is fixedly installed with a small gear (111). The outer surface of the small gear (111) meshes with the outer surface of the large gear (105). The two hollow shafts (102) are respectively connected to both sides of the grinding cylinder (101) by bolts. The output end of the grinding motor (107) is fixedly connected to the input end of the speed reducer (108). The other end of the bearing rod (110) is fixedly connected to the output end of the speed reducer (108).

8. The high-efficiency ball milling mixer for silicon carbide powder according to claim 7, wherein: A plurality of sliding installation holes (113) are fixedly opened inside the grinding cylinder (101) away from the large gear (105). Sliding installation bars (114) are movably embedded inside the plurality of sliding installation holes (113). Inclined material receiving plates (115) are fixedly installed on the outer surfaces of one sides of the plurality of sliding installation bars (114). The plurality of sliding installation bars (114) are connected to the grinding cylinder (101) by bolts. The outer surfaces of one sides of the plurality of inclined material receiving plates (115) are in contact with the outer surface of the double-layer grid plate (202).

9. The high-efficiency ball milling mixer for silicon carbide powder according to claim 8, wherein: A rubber protection ring (205) is fixedly connected to the outer surface of the discharge cylinder (201) near the conical material receiving hopper (204). The outer surface of the rubber protection ring (205) is in contact with the inner wall of the other hollow shaft (102).

10. The high-efficiency ball milling mixer for silicon carbide powder according to claim 2, wherein: A first support frame (219) is movably sleeved on the outer surface of the discharge cylinder (201). The discharge cylinder (201) is connected to the first support frame (219) by a connecting member. A second support frame (220) is fixedly installed on the outer surface of the connecting cylinder (216).

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