Raw material crusher for silicon carbide production and processing

Abstract

The invention relates to the technical field of silicon carbide raw material crushing, in particular to a raw material crusher for silicon carbide production and processing. Comprising a shell, a feeding port is formed in the shell, a first motor is installed on the shell, an output shaft of the first motor is fixedly connected with a baffle through a rotating shaft, a filter screen is slidably connected into the shell, a buffer piece is installed in the shell, a collecting box is slidably connected into the shell, and a separation frame is slidably connected into the collecting box; an elastic telescopic rod is fixedly connected in the shell, a slide rheostat is mounted in the shell, and a fan is mounted on the shell. Large silicon carbide raw materials and small silicon carbide raw materials are screened out through the filter screen, long-time mutual friction generated when the large silicon carbide raw materials are smashed through the two smashing rollers is prevented, and therefore a large amount of dust is prevented from being generated, meanwhile, the dust removal strength of the draught fan is adjusted in a self-adaptive mode according to the amount of the screened silicon carbide raw materials, and the dust removal efficiency is improved. Therefore, the electric quantity loss is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of silicon carbide raw material crushing, in particular to a raw material crusher for silicon carbide production and processing. Background Art

[0002] Silicon carbide is a non-oxide ceramic material with a Mohs hardness of 9.2-9.3, second only to diamond. Therefore, when crushing silicon carbide raw materials, a special silicon carbide raw material crusher is required. When performing medium and fine crushing of silicon carbide raw materials, a double-roll crusher is generally required, that is, the incoming material is clamped in the middle by two relatively rotating rollers, and the material is crushed by the extrusion force between the two rollers.

[0003] The existing silicon carbide raw materials will generate a large amount of dust during the crushing process. Since the dust of the silicon carbide raw materials has extremely high hardness and is easy to wear the internal parts of the crusher, it is necessary to use a fan to absorb the silicon carbide dust generated during the crushing process. The gap between the two rollers of the existing double-roll crusher is fixed, but the block diameter and shape of silicon carbide are irregular. Large pieces of silicon carbide cannot enter the gap between the two rollers of the double-roll crusher, resulting in large pieces of silicon carbide repeatedly rubbing on the upper side of the two rollers, thereby causing a large amount of dust to be generated inside the device. This makes the amount of dust generated inside the crusher directly related to the amount and diameter of large pieces of silicon carbide. In addition, since the sizes of silicon carbide raw materials processed in the same batch are different, it is extremely difficult to determine the amount of dust generated in advance. If the dust removal intensity is directly increased, it will lead to excessive power loss. If the dust removal intensity is not increased, a large amount of dust will be present in the crusher, causing the parts in the crusher to be affected by the silicon carbide raw material dust, causing the silicon carbide parts to be worn or blocked, thereby affecting the service life of the crusher. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a raw material crusher for silicon carbide production and processing.

[0005] The technical solution of the present invention is: a raw material crusher for silicon carbide production and processing, comprising a shell, a feed port is arranged on the upper side of the shell, a first motor is installed on the position of the shell near the feed port, the output shaft of the first motor is fixedly connected to a baffle through a rotating shaft, a filter screen located at the lower side of the feed port is slidably connected in the shell, a buffer member fitted with the filter screen is installed in the shell, a collection box located below the filter screen is slidably connected in the shell, a partition frame is slidably connected in the collection box, the partition frame divides the collection box into three chambers, an elastic telescopic rod is fixed in the shell, the telescopic end of the elastic telescopic rod is fixedly connected to the collection box, a sliding rheostat is installed in the shell, the sliding piece of the sliding rheostat is fixedly connected to the collection box, a fan connected to the interior of the shell is installed, the fan is electrically connected to the sliding rheostat, and a crushing assembly for crushing silicon carbide raw materials is arranged on the shell.

[0006] In addition, it is particularly preferred that the pulverizing assembly includes a pulverizing shell, the pulverizing shell is fixedly connected to a position inside the outer casing close to the fan, a second motor is installed on the outside of the outer casing close to the fan, symmetrically distributed pulverizing rollers are rotatably connected inside the pulverizing shell, the pulverizing rollers and the output shaft of the second motor are transmitted by a transmission member, and a guide plate is fixedly connected to the pulverizing shell, and the guide plate is located below the side of the partition frame close to the pulverizing shell.

[0007] In addition, it is particularly preferred that the filter net is provided with two layers of filter holes distributed in a rectangular array, wherein the diameter of the upper filter holes is larger than the diameter of the lower filter holes, and the upper filter holes are used to isolate large pieces of silicon carbide on the upper side of the filter net, and the aperture of the lower filter holes is smaller than the gap between the symmetrically distributed crushing rollers, and is used to filter small pieces of silicon carbide.

[0008] In addition, it is particularly preferred that an air guide plate is provided in the housing near the fan, and the air guide plate is provided with a plurality of groups of through holes distributed in a linear array and connected to the fan, and the plurality of groups of through holes increase in size from top to bottom.

[0009] In addition, it is particularly preferred that the rotating shaft of the first motor output shaft is fixedly connected with a limit block which is uniformly and symmetrically distributed in the circumferential direction, the inner wall of the outer shell is slidably connected with a symmetrically distributed limit rod, an elastic part is fixedly connected between the limit rod and the outer shell, the limit block is squeezed and fitted with the adjacent limit rod, the limit rod is slidably connected to the filter screen, and an elastic part is fixedly connected between the limit rod and the filter screen.

[0010] In addition, it is particularly preferred that a first wedge block is fixedly connected to one side of the filter screen close to the partition frame, a second wedge block is fixedly connected to a position of the partition frame close to the first wedge block, the first wedge block and the second wedge block are squeezed together, and a symmetrically distributed first guide plate is fixedly connected to a position of the partition frame close to the crushing shell, which is used to guide the silicon carbide raw material into the crushing shell.

[0011] In addition, it is particularly preferred that the pulverizing shell is slidably connected to a filter plate, the filter plate is located on the lower side of the pulverizing shell, an elastic member is fixed between the filter plate and the pulverizing shell, a discharge shell located below the filter plate is fixedly connected in the outer shell, a pressure sensor located below the filter plate is fixedly connected in the outer shell, and the pressure sensor is squeezed into fit with the filter plate.

[0012] In addition, it is particularly preferred that it also includes an extrusion block, which is fixedly connected to the rotating shaft of the first motor output shaft, and a first hydraulic telescopic rod is fixedly connected to the position of the outer shell near the extrusion block, and the telescopic end of the first hydraulic telescopic rod is extruded and matched with the extrusion block, and the collection box is fixedly connected to a second hydraulic telescopic rod connected to the first hydraulic telescopic rod through a conduit, and an elastic member is fixedly connected between the telescopic end of the first hydraulic telescopic rod and its fixed part, and a sealing plate is fixedly connected to the telescopic end of the second hydraulic telescopic rod, and the sealing plate is slidably connected to the collection box, and the collection box is provided with a discharge port, and the discharge port is sealed and matched with the sealing plate.

[0013] In addition, it is particularly preferred that symmetrically distributed guide slopes are provided in the collection box, a guide shell slidably connected to the outer shell is slidably connected to the collection box, and the guide slopes and the guide shell are respectively separated into different chambers by the partition frame.

[0014] In addition, it is particularly preferred that a second guide plate located at the lower side of the collecting box is fixedly connected to the outer shell, and the second guide plate is used to guide the silicon carbide in the discharge port into the pulverizing shell.

[0015] The advantages and positive effects of the present invention compared with the prior art are as follows: 1. The present invention screens out large and small pieces of silicon carbide raw materials through a filter screen, thereby preventing the two crushing rollers from rubbing against each other for a long time when crushing large pieces of silicon carbide raw materials, thereby avoiding the generation of a large amount of dust, and at the same time, the dust removal strength of the fan is adaptively adjusted according to the amount of silicon carbide raw materials screened out, thereby reducing the loss of electricity; 2. The rotating shaft of the output shaft of the first motor drives the limit rod to move up and down reciprocatingly, so that the filter net moves up and down reciprocatingly, thereby continuously vibrating when screening the silicon carbide raw material, so that the silicon carbide raw material is quickly and evenly spread on the upper side of the filter net, and the silicon carbide raw material is prompted to quickly pass through the filter holes of the filter net, thereby improving the efficiency of the filter net in screening the silicon carbide raw material; 3. The sealing plate is driven to move by hydraulic transmission, so that large pieces of silicon carbide raw materials slide along the discharge port and the second guide plate into the crushing shell, and the large pieces of silicon carbide raw materials are crushed separately. When the large pieces of silicon carbide raw materials are crushed, the wind force of the fan is automatically increased, which prevents the waste of electric energy and reduces the generation of dust in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a three-dimensional structural cross-sectional view of the housing of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the collecting box of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the buffer member of the present invention; Figure 5 It is a three-dimensional structural cross-sectional view of the outer shell and the pulverizing shell of the present invention; Figure 6 is a schematic diagram of the three-dimensional structure of the second motor of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the crushing roller and the guide plate of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the limiting block and the limiting rod of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the first wedge block and the second wedge block of the present invention; Fig.10 It is a three-dimensional structural schematic diagram of the filter screen and the limiting rod of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the filter plate and the lower material shell of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the extrusion block of the present invention; Fig.13 It is an exploded view of the three-dimensional structure of the collecting box, the sealing plate and the second guide plate of the present invention.

[0017] The markings in the accompanying drawings are as follows: 1. Shell, 101. Feed port, 102. First motor, 103. Baffle, 104. Filter, 105. Buffer, 106. Collecting box, 107. Partition frame, 108. Elastic telescopic rod, 109. Sliding rheostat, 110. Fan, 2. Crushing assembly, 201. Crushing shell, 202. Second motor, 203. Crushing roller, 204. Guide plate, 3. Air guide plate, 4. Limit block, 401. Limit rod, 5. First wedge block, 501. Second wedge block, 6. First guide plate, 7. Filter plate, 701. Discharge shell, 702. Pressure sensor, 8. Extrusion block, 801. First hydraulic telescopic rod, 802. Second hydraulic telescopic rod, 803. Blocking plate, 804. Discharge port, 9. Guide ramp, 901. Guide shell, 10. Second guide plate. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below.

[0019] When the existing silicon carbide raw materials are crushed, the amount of dust generated inside the crusher is directly related to the amount and diameter of large pieces of silicon carbide. In addition, since the sizes of silicon carbide raw materials processed in the same batch are different, it is extremely difficult to judge the amount of dust generated in advance. If the dust removal intensity is directly increased, it will lead to excessive loss of electricity. If the dust removal intensity is not increased, a large amount of dust will exist in the crusher, causing the parts in the crusher to be affected by the silicon carbide raw material dust, causing the silicon carbide parts to be worn or blocked, and thus affecting the service life of the crusher.

[0020] Embodiment 1: A raw material crusher for silicon carbide production and processing, such as Figure 1-Figure 4As shown, it includes a shell 1, a control panel is installed on the shell 1, a feed port 101 is arranged on the upper side of the shell 1, a first motor 102 electrically connected to the control panel is installed at the rear side of the shell 1 near the feed port 101, the output shaft of the first motor 102 is fixedly connected to a baffle 103 through a rotating shaft, a filter screen 104 located at the lower side of the feed port 101 is slidably connected in the shell 1, and the filter screen 104 is provided with upper and lower layers of filter holes distributed in a rectangular array, wherein the diameter of the upper filter holes is larger than the diameter of the lower filter holes, and the upper filter holes are used to filter large pieces of silicon carbide. Isolated on the upper side of the filter screen 104, the aperture of the lower filter hole is smaller than the gap between the two crushing rollers 203, which is used to filter small pieces of silicon carbide. A buffer 105 that fits the filter screen 104 is installed in the housing 1. The buffer 105 consists of two left and right rectangular plates, two sliding rods and a plurality of elastic members. The right rectangular plate is fixed to the inner wall of the housing 1. The right rectangular plate is slidably connected to the left rectangular plate through two sliding rods. The elastic member is fixed between the two rectangular plates. After the large piece of silicon carbide moves to the left rectangular plate, the left rectangular plate is compressed and drives its elastic member to move. The parts shrink to cushion the fall of large pieces of silicon carbide. A collection box 106 located below the filter screen 104 is slidably connected in the housing 1. A partition frame 107 is slidably connected in the collection box 106. The partition frame 107 divides the collection box 106 into three chambers. The middle chamber is used to store small pieces of silicon carbide, and the right chamber is used to store large pieces of silicon carbide. An elastic telescopic rod 108 is fixedly connected in the housing 1. The telescopic end of the elastic telescopic rod 108 is fixedly connected to the collection box 106. A sliding rheostat 109 is installed in the housing 1. The sliding piece of the sliding rheostat 109 is fixedly connected to the collection box 106. The housing 1 is equipped with a fan 110 connected to its interior. After the sliding piece of the sliding rheostat 109 moves downward, the resistance of the sliding rheostat 109 gradually increases, and the current of the fan 110 gradually decreases, so that after the large and small pieces of silicon carbide added in equal amounts are excluded, the suction force of the fan 110 is adaptively adjusted according to the weight of the large and small pieces of silicon carbide raw materials. The fan 110 is electrically connected to the sliding rheostat 109, and the fan 110 and the sliding rheostat 109 are both electrically connected to the control panel. A crushing component 2 for crushing the silicon carbide raw material is provided on the housing 1.

[0021] like Figure 2 , Figure 3 and Figure 5-Figure 7As shown, the pulverizing assembly 2 includes a pulverizing shell 201, which is fixedly connected to a position in the outer shell 1 near the fan 110, and a second motor 202 electrically connected to the control panel is installed on the outside of the outer shell 1 near the fan 110. The pulverizing shell 201 is rotatably connected to symmetrically distributed pulverizing rollers 203, and the pulverizing rollers 203 and the output shaft of the second motor 202 are transmitted through a transmission member, wherein the transmission member is composed of four spur gears, two of which are fixedly connected to adjacent pulverizing rollers 203, respectively, and the remaining two spur gears are meshed with each other and respectively meshed with the spur gears fixed on the adjacent pulverizing rollers 203, and the output shaft of the second motor 202 is coaxially fixed with the adjacent spur gears, and the pulverizing shell 201 is fixedly connected to a guide plate 204, which is located at the lower left side of the partition frame 107, and is used to guide silicon carbide to between the two pulverizing rollers 203 to prevent silicon carbide from being stuck in the gap between the pulverizing rollers 203 and the pulverizing shell 201.

[0022] like Figure 5 As shown, an air guide plate 3 is arranged on the left side of the shell 1, and a plurality of through holes are arranged on the air guide plate 3, which are distributed in a linear array and are all connected to the fan 110. The plurality of through holes increase in size from top to bottom, and are used to increase the air suction volume on the lower side of the shell 1. A part of the through holes are located on the upper side of the pulverizing shell 201, and another part of the through holes are located on the lower side of the pulverizing shell 201. The through holes on the upper side are used to absorb the dust generated during the pulverizing process of silicon carbide, and the through holes on the lower side are used to reduce the amount of dust raised by the falling silicon carbide after pulverizing.

[0023] like Figure 3 , Figure 8 and Fig.10 As shown, the rotating shaft of the output shaft of the first motor 102 is fixedly connected with a limit block 4 which is uniformly and symmetrically distributed in the circumferential direction, the limit block 4 is a wedge-shaped block with an inclined surface, and a symmetrically distributed limit rod 401 is slidably connected to the inner wall of the outer shell 1, and an inclined surface is provided on the upper part of the limit rod 401, and an elastic member is fixedly connected between the limit rod 401 and the outer shell 1, wherein the elastic member is a compression spring, and the inclined surface of the limit block 4 is squeezed and matched with the inclined surface of the adjacent limit rod 401, so as to squeeze the limit rod 401 to move downward, and the limit rod 401 is slidably connected with the filter screen 104, so that the filter screen 104 and the limit rod 401 can move horizontally relative to each other, but cannot move vertically relative to each other, and an elastic member is fixedly connected between the limit rod 401 and the filter screen 104, wherein the elastic member is a compression spring.

[0024] like Figure 2 , Figure 4 , Figure 8 and Fig. 9As shown, a first wedge block 5 is fixedly connected to the right portion of the lower side of the filter screen 104, and a second wedge block 501 is fixedly connected to the right portion of the upper side of the partition frame 107. The first wedge block 5 and the second wedge block 501 are squeezed together. When the filter screen 104 moves up and down, the first wedge block 5 is squeezed by the second wedge block 501, so that the filter screen 104 and the limit rod 401 move horizontally relative to each other. Two first guide plates 6 symmetrically distributed front and back are fixedly connected to the left portion of the upper side of the partition frame 107. The two first guide plates 6 together form an eight-shaped shape, and the distance between the two first guide plates 6 gradually increases from left to right. The pulverizing shell 201 is located on the left side of the two first guide plates 6, and is used to guide the silicon carbide raw material into the pulverizing shell 201.

[0025] like Figure 2 , Figure 5 and Fig.11 As shown, the grinding shell 201 is slidably connected to the filter plate 7, and the filter plate 7 is located at the lower side of the grinding shell 201. An elastic member is fixed between the filter plate 7 and the grinding shell 201, wherein the elastic member is a compression spring, and its elastic force is greater than the gravity of the filter plate 7 itself. A discharge shell 701 located below the filter plate 7 is fixedly connected in the outer shell 1, and a pressure sensor 702 located below the filter plate 7 is fixedly connected in the outer shell 1. The pressure sensor 702 is electrically connected to the control panel, and the pressure sensor 702 is squeezed and matched with the filter plate 7. After the pressure sensor 702 is pressurized, the pressure sensor 702 issues a command and controls the first motor 102 and the second motor 202 to stop running at the same time through the control panel.

[0026] When the operator needs to use the present device to crush the silicon carbide raw material, the operator first adds the silicon carbide raw material into the feed port 101, and the silicon carbide raw material falls to the upper side of the baffle 103. The operator turns on the first motor 102 through the control panel, and the output shaft of the first motor 102 slowly drives the baffle 103 to rotate through the rotating shaft. When the baffle 103 rotates until its left end loses contact with the shell 1 and contacts with the shell 1 again, the control panel controls the output shaft of the first motor 102 to stop rotating, and the silicon carbide raw material falls to the upper side of the filter screen 104 through the gap between the baffle 103 and the shell 1, and the silicon carbide raw material is screened through the filtering holes distributed in a rectangular array on the upper side of the filter screen 104, and large pieces of silicon carbide raw material are blocked on the upper side of the filter screen 104, so that the large pieces of silicon carbide raw material are filtered along the filter screen 104. 4 moves rightward to the buffer 105, and the large pieces of silicon carbide raw materials fall into the chamber on the right side of the collecting box 106 after being buffered by the buffer 105, and the screened silicon carbide raw materials fall to the filtering holes distributed in the rectangular array on the lower side of the filter 104, and the small pieces of silicon carbide raw materials directly pass through the filtering holes on the lower side of the filter 104 and fall into the chamber in the middle of the collecting box 106, and the silicon carbide raw materials with relatively uniform sizes after screening move along the filter 104 to the partition frame 107, and the silicon carbide raw materials on the partition frame 107 are guided by the two first guide plates 6, so that the silicon carbide raw materials are gathered in the middle between the two first guide plates 6, and then the silicon carbide raw materials fall along the partition frame 107 to the guide plate 204, and the silicon carbide raw materials slide along the upper surface of the guide plate 204 into the pulverizing shell 201.

[0027] After the silicon carbide raw materials of appropriate size enter into the crushing shell 201, the operator turns on the fan 110 through the control panel. The large pieces of silicon carbide raw materials and the small pieces of silicon carbide raw materials are now located in the collecting box 106. The weight of the collecting box 106 increases and squeezes the telescopic end of the elastic telescopic rod 108 to move downward, and the collecting box 106 drives the sliding piece of the sliding rheostat 109 to move downward, the resistance of the sliding rheostat 109 increases, and the current delivered to the fan 110 decreases, thereby reducing the force of the fan 110 to extract dust in the outer shell 1, thereby reducing the power loss, and by screening out the oversized silicon carbide raw materials in advance, the two crushing rollers 203 are prevented from generating long-term mutual friction when crushing large pieces of silicon carbide raw materials, thereby generating a large amount of dust, which in turn causes the parts in the outer shell 1 to be worn or blocked by the hard silicon carbide raw material dust.

[0028] After the silicon carbide raw material of appropriate size enters into the pulverizing shell 201, the operator turns on the second motor 202 through the control panel, and the output shaft of the second motor 202 drives the two pulverizing rollers 203 through the transmission member, and the two pulverizing rollers 203 rotate and pulverize the silicon carbide raw material. Since the two first guide plates 6 gather the silicon carbide raw material in the middle, the silicon carbide raw material is located in the middle position of the pulverizing roller 203, preventing the silicon carbide raw material from falling into the front or rear side of the pulverizing roller 203, thereby causing the pulverizing roller 203 to be tilted and damaged during long-term use. During the pulverization of the silicon carbide raw material, the fan 110 extracts dust in the outer casing 1 through the through holes on the air guide plate 3.

[0029] In the process that the output shaft of the first motor 102 slowly drives the baffle 103 to rotate through the rotating shaft, the rotating shaft of the output shaft of the first motor 102 drives all the limit blocks 4 to rotate. During the rotation process, the limit block 4 first squeezes the limit rod 401 adjacent to the lower side, so that the limit rod 401 moves downward and drives its elastic member to stretch. After one limit block 4 rotates to lose contact with the adjacent limit rod 401, the elastic member of the limit rod 401 rebounds and drives it to reset. The above steps are repeated, so that the limit rod 401 continuously moves back and forth up and down, and the two limit rods 401 jointly drive the filter screen 104 to move back and forth up and down, so that the filter screen 104 continuously vibrates when screening the silicon carbide raw material, and the silicon carbide raw material is quickly and evenly spread on the upper side of the filter screen 104, prompting the silicon carbide raw material to quickly pass through the filtering holes of the filter screen 104, thereby improving the efficiency of the filter screen 104 in screening the silicon carbide raw material.

[0030] During the up and down movement of the filter screen 104, the filter screen 104 drives the first wedge block 5 to move up and down. When the first wedge block 5 moves downward, the first wedge block 5 is squeezed by the second wedge block 501 and drives the filter screen 104 to move leftward. The elastic member between the limit rod 401 and the filter screen 104 is gradually compressed. When the first wedge block 5 moves upward, the elastic member between the limit rod 401 and the filter screen 104 rebounds and resets. The filter screen 104 resets and drives the first wedge block 5 to reset. The above steps are repeated continuously to realize the reciprocating left and right movement of the filter screen 104, thereby improving the efficiency of the filter screen 104 in screening silicon carbide raw materials.

[0031] When the crushing roller 203 finishes crushing the screened silicon carbide raw material, the silicon carbide raw material in the crushing shell 201 passes through the filter plate 7 and falls into the discharge shell 701. The operator pulls out the discharge shell 701 and collects the crushed silicon carbide raw material. If the two crushing rollers 203 are worn out due to long-term use, the degree of crushing of the silicon carbide raw material by the two crushing rollers 203 is reduced, resulting in some silicon carbide raw materials being unable to pass through the holes of the filter plate 7 after being crushed, and the weight on the upper side of the filter plate 7 increases. When too much silicon carbide raw material accumulates on the upper side of the filter plate 7, the filter plate 7 moves downward under the action of gravity, and the filter plate 7 squeezes the pressure sensor 702. The pressure sensor 702 is triggered and transmits a signal to the control panel. The control panel prompts the operator to repair or replace the two crushing rollers 203.

[0032] When the device is no longer in use, the operator turns off the fan 110, the first motor 102 and the second motor 202 through the control panel, then removes and collects the crushed silicon carbide raw material, takes out the silicon carbide raw material in the collection box 106 for collection, collects the large pieces of silicon carbide and knocks them into small pieces, then places the large pieces of silicon carbide raw material into the device again, and crushes the large pieces of silicon carbide after being knocked into small pieces through the above steps.

[0033] Embodiment 2: Based on embodiment 1, Figure 1 , Fig.12 and Fig.13As shown, it also includes an extrusion block 8, which is provided with protrusions distributed symmetrically in the center. After the baffle 103 rotates on the left side to lose contact with the shell 1 and makes secondary contact, a protrusion on the upper side of the extrusion block 8 rotates to contact the telescopic end of the first hydraulic telescopic rod 801. The extrusion block 8 is fixedly connected to the rotating shaft of the output shaft of the first motor 102. The first hydraulic telescopic rod 801 is fixedly connected to the position of the shell 1 near the extrusion block 8. The telescopic end of the first hydraulic telescopic rod 801 is extruded and matched with the extrusion block 8. The collection box 106 is fixedly connected to the collection box 106 through the conduit and the collection box 106. The first hydraulic telescopic rod 801 is connected to the second hydraulic telescopic rod 802, and an elastic member is fixedly connected between the telescopic end of the first hydraulic telescopic rod 801 and its fixed part, wherein the elastic member is a compression spring, and a blocking plate 803 is fixedly connected to the telescopic end of the second hydraulic telescopic rod 802, and the blocking plate 803 is slidably connected to the collection box 106, and the collection box 106 is provided with a discharge port 804, and the discharge port 804 is blocked with the blocking plate 803. When the baffle 103 rotates to the left side to contact the shell 1 for the second time, the blocking plate 803 gradually moves and loses the discharge. The outlet 804 is blocked. After the baffle 103 rotates to the horizontal position, the discharge outlet 804 is completely opened. The collecting box 106 is provided with guide slopes 9 symmetrically distributed front and rear to guide the large silicon carbide to the top of the discharge outlet 804. The collecting box 106 is slidably connected with a guide shell 901 slidably connected with the outer shell 1. The guide slope 9 and the guide shell 901 are respectively separated into different chambers by a partition frame 107. The guide slope 9 is located in the right chamber, the guide shell 901 is located in the middle chamber, and the outer shell 1 is fixed with a guide shell 901 located in the middle chamber. The second guide plate 10 at the lower side of the collecting box 106 has an eight-shaped limit block on its upper side, and the left side of the second guide plate 10 is narrower than the right side. The second guide plate 10 is used to guide the silicon carbide in the discharge port 804 into the crushing shell 201, and to freely disperse the large silicon carbide raw materials on the upper side of the second guide plate 10 to prevent the accumulation of large silicon carbide raw materials, thereby avoiding the accumulation of a large amount of large silicon carbide raw materials in the middle position between the two crushing rollers 203, which in turn affects the reduction of the processing efficiency of large silicon carbide.

[0034] In the process of the output shaft of the first motor 102 driving the rotating shaft to rotate, the rotating shaft of the output shaft of the first motor 102 drives the extrusion block 8 to rotate. After the baffle 103 rotates to guide all the silicon carbide raw materials on it to the upper side of the filter 104, the control panel controls the output shaft of the first motor 102 to temporarily stop rotating. After the two crushing rollers 203 have crushed the silicon carbide raw materials through the above steps, the control panel controls the rotating shaft of the output shaft of the first motor 102 to continue rotating. The rotating shaft of the output shaft of the first motor 102 drives the extrusion block 8 to rotate, and the extrusion block 8 rotates and gradually extrudes At the telescopic end of the first hydraulic telescopic rod 801, the hydraulic oil in the first hydraulic telescopic rod 801 flows into the second hydraulic telescopic rod 802 through the conduit, causing the telescopic end of the second hydraulic telescopic rod 802 to contract, and the elastic part of the second hydraulic telescopic rod 802 is gradually compressed. The second hydraulic telescopic rod 802 drives the blocking plate 803 to move to the left, causing the blocking plate 803 to lose its blockage of the discharge port 804, and large pieces of silicon carbide raw materials slide to the discharge port 804 through the guide slope 9, and the large pieces of silicon carbide raw materials fall onto the second guide plate 10 through the discharge port 804.

[0035] After the large pieces of silicon carbide raw material fall onto the second guide plate 10, the large pieces of silicon carbide raw material slide along the second guide plate 10 into the pulverizing shell 201, and the two pulverizing rollers 203 pulverize the large pieces of silicon carbide raw material through the above steps. At the same time, the weight in the collecting box 106 is reduced, and the telescopic end of the elastic telescopic rod 108 moves upward. The collecting box 106 drives the sliding piece of the sliding rheostat 109 to move upward, and the resistance of the sliding rheostat 109 decreases, and the current delivered to the fan 110 increases, thereby increasing the force of the fan 110 to extract dust in the outer casing 1, and the large pieces of silicon carbide raw material are pulverized separately, so that the wind force of the fan 110 is automatically increased when the large pieces of silicon carbide raw material are pulverized, thereby preventing waste of electric energy and reducing the accumulation of dust in the outer casing 1.

[0036] When the large pieces of silicon carbide raw materials are crushed, the operator repeats the above steps to extract the discharge shell 701 and collect the crushed silicon carbide raw materials, then extract the guide shell 901, and collect the small pieces of silicon carbide raw materials in the guide shell 901 separately. If the next group of silicon carbide raw materials needs to be processed, the next group of silicon carbide raw materials is placed on the upper side of the baffle 103 and the above steps are repeated.

[0037] In summary, the invention includes but is not limited to the above embodiments. Any equivalent substitution or partial improvement made under the spirit and principle of the invention shall be deemed to be within the protection scope of the invention.

Claims

1. A raw material crusher for silicon carbide production and processing, comprising a housing (1), a feed port (101) being arranged on the upper side of the housing (1), a first motor (102) being installed near the feed port (101) of the housing (1), an output shaft of the first motor (102) being fixedly connected to a baffle (103) via a rotating shaft, characterized in that: The invention also comprises a filter screen (104) located below the feed port (101), the filter screen (104) being slidably connected to the shell (1), a buffer member (105) being installed in the shell (1) and being in contact with the filter screen (104), a collection box (106) being slidably connected to the shell (1) and located below the filter screen (104), a partition frame (107) being slidably connected to the collection box (106), the partition frame (107) dividing the collection box (106) into three chambers, and the shell (101) being slidably connected to the collection box (106). An elastic telescopic rod (108) is fixedly connected inside the housing (1), the telescopic end of the elastic telescopic rod (108) is fixedly connected to the collection box (106), a sliding rheostat (109) is installed inside the housing (1), the sliding piece of the sliding rheostat (109) is fixedly connected to the collection box (106), the housing (1) is installed with a fan (110) connected to the inside thereof, the fan (110) is electrically connected to the sliding rheostat (109), and a crushing component (2) for crushing silicon carbide raw material is arranged on the housing (1).

2. A raw material crusher for silicon carbide production and processing according to claim 1, characterized in that: The pulverizing assembly (2) comprises a pulverizing shell (201), the pulverizing shell (201) being fixedly connected to a position inside the outer shell (1) close to the fan (110), a second motor (202) being installed outside the outer shell (1) close to the fan (110), symmetrically distributed pulverizing rollers (203) being rotatably connected inside the pulverizing shell (201), the pulverizing rollers (203) being transmitted to an output shaft of the second motor (202) via a transmission member, the pulverizing shell (201) being fixedly connected to a guide plate (204), the guide plate (204) being located below a side of the partition frame (107) close to the pulverizing shell (201).

3. A raw material crusher for silicon carbide production and processing according to claim 2, characterized in that: The filter screen (104) is provided with two layers of filter holes distributed in a rectangular array, wherein the diameter of the filter holes in the upper layer is larger than the diameter of the filter holes in the lower layer, and the filter holes in the upper layer are used to isolate large pieces of silicon carbide on the upper side of the filter screen (104), and the aperture of the filter holes in the lower layer is smaller than the gap between the symmetrically distributed crushing rollers (203), and is used to filter small pieces of silicon carbide.

4. A raw material crusher for silicon carbide production and processing according to claim 2, characterized in that: An air guide plate (3) is arranged in the housing (1) at a position close to the fan (110), and the air guide plate (3) is provided with a plurality of groups of through holes distributed in a linear array and all connected to the fan (110), and the plurality of groups of through holes are enlarged in size from top to bottom.

5. A raw material crusher for silicon carbide production and processing according to claim 4, characterized in that: The rotating shaft of the output shaft of the first motor (102) is fixedly connected with a circumferentially uniform and symmetrically distributed limit block (4); the inner wall of the housing (1) is slidably connected with symmetrically distributed limit rods (401); an elastic member is fixedly connected between the limit rods (401) and the housing (1); the limit block (4) is extruded and matched with the adjacent limit rods (401); the limit rods (401) are slidably connected with the filter screen (104); and an elastic member is fixedly connected between the limit rods (401) and the filter screen (104).

6. A raw material crusher for silicon carbide production and processing according to claim 5, characterized in that: A first wedge block (5) is fixedly connected to one side of the filter screen (104) close to the partition frame (107); a second wedge block (501) is fixedly connected to a position of the partition frame (107) close to the first wedge block (5); the first wedge block (5) and the second wedge block (501) are pressed together; and a symmetrically distributed first guide plate (6) is fixedly connected to a position of the partition frame (107) close to the pulverizing shell (201) for guiding the silicon carbide raw material into the pulverizing shell (201).

7. The raw material crusher for silicon carbide production and processing according to claim 5, characterized in that: The pulverizing shell (201) is slidably connected to a filter plate (7), the filter plate (7) being located at the lower side of the pulverizing shell (201), an elastic member being fixedly connected between the filter plate (7) and the pulverizing shell (201), a material discharge shell (701) being fixedly connected to the outer shell (1) and located below the filter plate (7), a pressure sensor (702) being fixedly connected to the outer shell (1) and located below the filter plate (7), the pressure sensor (702) being pressed and fitted with the filter plate (7).

8. A raw material crusher for silicon carbide production and processing according to claim 7, characterized in that: The invention also comprises an extrusion block (8), wherein the extrusion block (8) is fixedly connected to the rotating shaft of the output shaft of the first motor (102); a first hydraulic telescopic rod (801) is fixedly connected to the position of the housing (1) close to the extrusion block (8); the telescopic end of the first hydraulic telescopic rod (801) is extruded and matched with the extrusion block (8); the collection box (106) is fixedly connected to a second hydraulic telescopic rod (802) connected to the first hydraulic telescopic rod (801) through a conduit; an elastic member is fixedly connected between the telescopic end of the first hydraulic telescopic rod (801) and its fixed part; a sealing plate (803) is fixedly connected to the telescopic end of the second hydraulic telescopic rod (802); the sealing plate (803) is slidably connected to the collection box (106); the collection box (106) is provided with a discharge port (804); the discharge port (804) is sealed and matched with the sealing plate (803).

9. A raw material crusher for silicon carbide production and processing according to claim 8, characterized in that: The collecting box (106) is provided with symmetrically distributed guiding inclined surfaces (9), and a guiding shell (901) slidably connected to the outer shell (1) is slidably connected to the collecting box (106), and the guiding inclined surfaces (9) and the guiding shell (901) are respectively separated into different chambers by the separating frame (107).

10. A raw material crusher for silicon carbide production and processing according to claim 9, characterized in that: A second guide plate (10) located at the lower side of the collecting box (106) is fixedly connected to the outer shell (1), and the second guide plate (10) is used to guide the silicon carbide in the discharge port (804) into the pulverizing shell (201).

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