Classification packaging system for processed silicon carbide micro powder and using method

Abstract

The invention discloses a processed silicon carbide micro-powder grading and packaging system and a using method, and belongs to the technical field of silicon carbide micro-powder grading and packaging. The system comprises an operation table and a controller arranged in the operation table, a containing box is arranged at the top of the operation table, and a spiral feeding assembly is arranged at the top of the containing box; the spiral feeding assembly comprises a connecting frame fixedly connected with the top of the containing box, a feeding port is formed in the top of the connecting frame, a first motor is installed on one side of the connecting frame, a first transmission assembly is arranged at the output end of the first motor, and a knocking assembly is arranged in the containing box. And the knocking assembly comprises two sets of supporting rods connected with the interior of the containing box through bearings. The device solves the problems that current equipment is low in screening precision, operation parameters cannot be optimized in a self-adaptive mode, the precision in the follow-up grading process is insufficient, micro powder with different particle sizes is mixed, and grading packaging is difficult to achieve.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of silicon carbide micro-powder grading packaging, and particularly relates to a silicon carbide micro-powder grading packaging system after processing and a use method. BACKGROUND

[0002] In the field of grading packaging of silicon carbide micro-powder after processing, the grading packaging system plays a key role in product quality and production efficiency. The traditional grading packaging process of silicon carbide micro-powder has many problems. In the feeding link, the lack of precise control often leads to material accumulation or material breakage, affecting the continuity and stability of the subsequent process, and different particle sizes of the material are easily mixed, affecting the accuracy of grading packaging.

[0003] In the traditional equipment, a large number of fine particles that meet the requirements cannot pass through the screen holes due to aggregation, which reduces the accuracy and efficiency of screening. The state of the material retained on the screen lacks intelligent sensing and adjusting ability, and the subsequent grading process lacks precision. Different particle sizes of the micro-powder are easily mixed, resulting in poor uniformity of the final product, and it is difficult to achieve accurate grading and automatic packaging with high quality and high efficiency. This phenomenon has become a problem that personnel in the field are eager to solve. SUMMARY

[0004] The present application aims to solve the problems raised in the background art by providing a silicon carbide micro-powder grading packaging system after processing and a use method.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of after processing silicon carbide micro powder grading packaging system, including operation platform and the controller being set to operation platform interior, the top of the operation platform is provided with placing box, the top of the placing box is provided with screw feeding assembly, the screw feeding assembly includes the connecting frame being fixedly connected with the top of placing box, the top of the connecting frame is equipped with feed inlet, one side of the connecting frame is equipped with first motor, the output of the first motor is provided with first transmission assembly, the inside of the placing box is provided with knock component, the knock component includes two groups of support rods being connected with the inside of placing box by bearing, second transmission assembly is connected between the end of two groups of support rods located in the same side, the knock component is provided with screening component below, the top of the operation platform is installed with airflow dispersion component, the airflow dispersion component includes first discharge pipe, the output of the first discharge pipe is sequentially provided with first classification zone, second classification zone and third classification zone from left to right, the bottom of the first classification zone, second classification zone and third classification zone is provided with storage tank, the airflow dispersion component further includes induced draft fan being fixedly installed on the top of operation platform, the air outlet pipe of the induced draft fan is connected with fluidized bed, the air outlet pipe of the induced draft fan is also connected with connecting pipe, the other end of the connecting pipe is connected with placing box, valve is provided at the connecting pipe, the top of the operation platform is installed with feed pump, the bottom of one side of the fluidized bed is connected with one end of the feed pump, the first discharge pipe is arranged at the top of the other side of fluidized bed.

[0006] The present application further illustrates that the output of the first motor is provided with the first transmission assembly, the first transmission assembly includes the first belt pulley connected with the output of the first motor, the first belt body is drivingly connected to the outside of the first belt pulley, and the other end of the first belt body is drivingly connected to the second belt pulley.

[0007] The present application further illustrates that the inside of the placing box is provided with the knock component, and one group of the support rods is drivingly connected with the second belt pulley.

[0008] The present application further illustrates that the second transmission assembly is connected between the end of two groups of support rods located in the same side, the third belt pulley is fixedly connected with one end of one group of support rods, the second belt body is drivingly connected to the outer surface of the third belt pulley, the fourth belt pulley is drivingly connected to the other end of the second belt body, the inside of the fourth belt pulley is fixedly connected with one end of the adjacent support rod, the cam is fixedly connected to the outer surface of two groups of support rods located in the inside of the placing box, and the stirring rod is arranged on the outer surface of both sides of the cam.

[0009] The application further discloses that the screening assembly comprises a chute opened on both sides of the placing box, a sliding rod is fixedly connected to the inside of the chute, a sliding block is slidably connected to the outer top end of the sliding rod, a screening plate is hinged to one side of the sliding block, and a first visual sensor is arranged on the top of the screening plate.

[0010] The application further discloses that the bottom of the sliding block is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a sliding block, the sliding block is sleeved on the outside of the sliding rod, a supporting spring is fixedly connected between the bottom of the sliding block and the bottom of the chute, the supporting spring is sleeved on the outer surface of the sliding rod, and an electric push rod is hinged between the sliding block and the screening plate.

[0011] The application further discloses that a second motor is arranged below the supporting rod on the outer surface of the placing box, a first scattering roller is connected to the output end of the second motor, a second scattering roller is arranged on one side of the first scattering roller, a third transmission assembly is arranged between the first scattering roller and the second scattering roller, the third transmission assembly comprises a fifth belt pulley fixedly connected to one end of the outer surface of the first scattering roller, a third belt body is connected to the outside of the fifth belt pulley, a sixth belt pulley is transmissionally connected to one end of the third belt body, a rotating speed sensor is arranged on the outside of the second motor, a feeding pump is mounted on the top of the operation table, and one end of the feeding pump is connected to the top of the placing box.

[0012] The application further discloses that an airflow scattering assembly is mounted on the top of the operation table, the airflow scattering assembly comprises an air drafter fixedly mounted on the top of the operation table, a fluidized bed is connected to the air outlet pipe of the air drafter, one end of a connecting pipe is connected to the air outlet pipe of the air drafter, the other end of the connecting pipe is connected to the placing box, a valve is arranged at the connecting pipe, the bottom of one side of the fluidized bed is connected to one end of the feeding pump, and the first discharge pipe is arranged on the top of the other side of the fluidized bed.

[0013] The application further discloses that the output end of the first discharge pipe is sequentially provided with a first classification zone, a second classification zone and a third classification zone from left to right, and the bottom outer surfaces of the first classification zone, the second classification zone and the third classification zone are all provided with granularity detection sensors.

[0014] In addition, in order to achieve the above-mentioned purpose, the application also provides a use method of the processing silicon carbide micro-powder grading and packaging system, which comprises the following specific operation methods. Step one: feeding, the silicon carbide micro-powder is added from the feeding port of the spiral feeding assembly, the controller starts the first motor to drive the spiral shaft to rotate, the micro-powder is pushed along the inside of the connecting frame to the bottom discharge port through the pushing force of the spiral shaft, the quantitative and stable conveying of the material is realized, and the accumulation or material breakage is avoided; Step two: preliminary dispersion and vibration screening, the first motor drives the two groups of support rods of the knocking assembly to rotate through the first transmission assembly and the second transmission assembly, so that the stirring rod in the knocking assembly preliminarily disperses the material, and knocks the screening plate at the same time, so that vibration screening is realized; Step three: screening detection, the first motor speed and the second motor speed and the angle of the screening plate are adjusted through the first visual sensor detecting the length and area range of the retained material; Step four: material airflow dispersion, the material is sent into the fluidized bed of the airflow dispersion assembly by the material conveying pump, the induced draft fan provides high-pressure airflow from the bottom of the fluidized bed, the material is suspended in a fluidized state under the impact of the airflow, the buoyancy and shear force of the airflow further break the agglomeration, so that the particles move upward with the airflow in a monodisperse state, realizing airflow separation of the agglomerated particles; Step five: the material in a fluidized state enters the three-stage classification area through the first discharge pipe, and then realizes multi-stage classification, finally, the classified material enters the storage tank at the bottom of the three-stage classification area, realizing classification collection and packaging.

[0015] Compared with the prior art, the beneficial effects achieved by the present application are: in the present application, after the material enters from the spiral feeding assembly, it is sequentially subjected to knocking and stirring, screening and double-roller scattering pretreatment, and large impurities are removed and preliminarily dispersed; then, in the airflow dispersion assembly, the material is realized in a fluidized state, and finally, through the three-stage classification area, the material is accurately classified according to particle size, and finally, different particle size grades of silicon carbide micro-powder are obtained, realizing the effect of rapid classification and packaging of different grade products. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the overall rear view structure of the present application; Figure 1 Figure 3 is a schematic diagram of the overall bottom view structure of the present application; Figure 1 Figure 4 is a schematic diagram of the cross-sectional structure of the screening assembly of the present application; Figure 5 is a schematic diagram of the enlarged area structure at A in the present application; Figure 4 is a schematic diagram of the rear view structure of the present application; Figure 6 Figure 4 Figure 7 Figure 6 ​​​​​The enlarged area at the middle B is a schematic view.

[0017] In the figure: 1, operation table; 2, placing box; 3, spiral feeding assembly; 301, connecting frame; 302, feeding port; 303, first motor; 304, spiral shaft; 305, discharging port; 4, first transmission assembly; 401, first belt pulley; 402, first belt body; 403, second belt pulley; 5, knocking assembly; 501, support rod; 502, cam; 503, stirring rod; 6, second transmission assembly; 601, third belt pulley; 602, second belt body; 603, fourth belt pulley; 7, screening assembly; 701, chute; 702, slide rod; 703, sliding block; 704, screening plate; 705, connecting rod; 706, sliding block; 707, support spring; 708, electric push rod; 709, first visual sensor; 8, second motor; 9, first dispersion roller; 10, second dispersion roller; 11, third transmission assembly; 1101, fifth belt pulley; 1102, third belt body; 1103, sixth belt pulley; 1104, rotational speed sensor; 12, material conveying pump; 13, airflow dispersion assembly; 1301, air blower; 1302, fluidized bed; 1303, first discharging pipe; 14, connecting pipe; 15, first classification zone; 16, second classification zone; 17, third classification zone; 18, particle size detection sensor; 19, storage tank. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be further described in detail below in combination with preferred embodiments and the drawings thereof. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0019] Please refer to Figures 1-7 The present application provides the technical solutions: including operation table 1 and controller arranged in the operation table 1, the top of the operation table 1 is provided with placing box 2, the top of the placing box 2 is provided with spiral feeding assembly 3, the spiral feeding assembly 3 includes connecting frame 301 fixedly connected with the top of the placing box 2, the top of the connecting frame 301 is provided with feeding port 302, one side of the connecting frame 301 is provided with first motor 303, the first motor 303 is supported and fixed with the outer wall of the placing box 2 through a fixing frame, which is not shown in the figure, the output end of the first motor 303 is connected with spiral shaft 304, and the bottom of the connecting frame 301 is provided with discharging port 305; The silicon carbide powder is added from the feed port 302 of the connecting frame 301, the controller controls the first motor 303 to start, and drives the screw shaft 304 to rotate. The screw shaft 304 pushes the powder along the inside of the connecting frame 301 to the discharge port 305 at the bottom through the rotating thrust, realizes the quantitative conveying of the material, can effectively control the feeding speed, and avoids material accumulation or material breakage.

[0020] As shown in Figure 1 , Figure 2 , the output end of the first motor 303 is provided with a first transmission assembly 4, the first transmission assembly 4 includes a first belt pulley 401 connected with the output end of the first motor 303, the outside of the first belt pulley 401 is drivingly connected with a first belt body 402, and the other end of the first belt body 402 is drivingly connected with a second belt pulley 403. The first transmission assembly 4 is driven by the first motor 303, so that the power is transmitted to the second belt pulley 403 through the rotation of the first belt body 402 driven by the first belt pulley 401, so that the second belt pulley 403 rotates, so that a single power source drives multiple assemblies to operate, reduces the setting of independent power sources, and further saves energy consumption.

[0021] As shown in Figure 3 , Figure 4 , the inside of the placing box 2 is provided with a knocking assembly 5, the knocking assembly 5 is used for dispersing particles, and is used for pretreatment for subsequent screening, the knocking assembly 5 includes two groups of support rods 501 connected with the inside of the placing box 2 through bearings, one group of support rods 501 is drivingly connected with the second belt pulley 403, the two groups of support rods 501 are connected with a second transmission assembly 6 between the same side ends, the second transmission assembly 6 includes a third belt pulley 601 fixedly connected with one end of one group of support rods 501, the outer surface of the third belt pulley 601 is drivingly connected with a second belt body 602, the other end of the second belt body 602 is drivingly connected with a fourth belt pulley 603, and the inside of the fourth belt pulley 603 is fixedly connected with the end of the adjacent support rod 501. The outer surfaces of the two groups of support rods 501 located in the inside of the placing box 2 are fixedly connected with cams 502, and the outer surfaces of the two sides of the cams 502 are provided with stirring rods 503. The output end of the first motor 303 drives the first belt pulley 401 to rotate, the power is transmitted to the second belt pulley 403 through the friction transmission of the first belt body 402, and then the support rods 501 of the knocking assembly 5 are driven to rotate, the cams 502 on the outer surfaces of the two groups of support rods 501 rotate with the shafts, and the stirring rods 503 on the outer surfaces of the cams 502 can mechanically stir the powder, and further disperse the particles.

[0022] As shown in Figure 5As shown, the lower part of the knocking assembly 5 is provided with a screening assembly 7 for vibrating coarse screening of the micro powder, the screening assembly 7 comprises a chute 701 opened on both sides inside the placing box 2, the inside of the chute 701 is fixedly connected with a sliding rod 702, the outside top end of the sliding rod 702 is slidingly connected with a sliding block 703, one side of the sliding block 703 is hinged with a sieve plate 704, the top of the sieve plate 704 is provided with a first visual sensor 709, the first visual sensor 709 captures image information of the target scene through an optical system, and then through photoelectric conversion and signal processing, the detection, identification or measurement of the target is realized, which is used to identify the size and accumulation area of the particle size, the bottom of the sliding block 703 is fixedly connected with a connecting rod 705, the bottom of the connecting rod 705 is fixedly connected with a sliding block 706, the sliding block 706 is sleeved on the outside of the sliding rod 702, the bottom of the sliding block 706 and the bottom of the chute 701 are fixedly connected with a supporting spring 707, the supporting spring 707 is sleeved on the outer surface of the sliding rod 702, and the sliding block 706 and the sieve plate 704 are hinged with an electric push rod 708; The sieve plate 704 is slidingly connected with the sliding rod 702 through the sliding block 703, the bottom of the sliding block 706 and the bottom of the chute 701 are fixedly connected through the supporting spring 707, and a plurality of screen holes with the same diameter are formed in the sieve plate 704, when the cam 502 rotates, one end of the cam 502 with the diameter contacts the sieve plate 704, which can push the sieve plate 704 to move downward, when the cam 502 is not in contact with the sieve plate 704, the supporting spring 707 pushes the sliding block 706 and the sieve plate 704 to reset, so that the sieve plate 704 vibrates up and down, and the material screening is accelerated. It should be noted that the one side of the cam 502 with the diameter and the other side with the short diameter are provided as flat surfaces, fine particles can directly fall into the bottom of the placing box 2, coarse particles stay above the sieve plate 704, the electric push rod 708 can adjust the inclination angle of the sieve plate 704, and the electric push rod 708 can be extended or retracted to control the inclination angle of the sieve plate 704, thereby adjusting the discharge speed.

[0023] As shown in Figure 4 , Figure 7 , the outside surface of the placing box 2 located below the supporting rod 501 is provided with a second motor 8, the output end of the second motor 8 is connected with a first dispersion roller 9, one side of the first dispersion roller 9 is provided with a second dispersion roller 10, and the first dispersion roller 9 and the second dispersion roller 10 are provided with a third transmission assembly 11, the third transmission assembly 11 comprises a fifth belt pulley 1101 fixedly connected with one end of the outer surface of the first dispersion roller 9, the outside of the fifth belt pulley 1101 is connected with a third belt body 1102, one end of the third belt body 1102 is transmissionally connected with a sixth belt pulley 1103, the outside of the second motor 8 is provided with a rotating speed sensor 1104, the top of the operation table 1 is installed with a material conveying pump 12, one end of the material conveying pump 12 is connected with the top of the placing box 2; The second motor 8 is started by the controller, the output end of the second motor 8 drives the first dispersion roller 9 to rotate, and the second dispersion roller 10 is driven to rotate synchronously by the third transmission assembly 11, the screened material falls between the two dispersion rollers, and the residual small agglomerates are completely dispersed into single particles, so that the material entering the subsequent air flow system is uniformly dispersed, and the dispersed material is discharged by the material conveying pump 12.

[0024] As shown in Figure 1 、 Figure 2 , the top of the operation table 1 is provided with an air flow dispersion assembly 13, which is used for fluidizing and dispersing the micro powder, so that the micro powder is separated and the particle agglomeration is prevented. The air flow dispersion assembly 13 comprises an air blower 1301 fixedly installed on the top of the operation table 1, the air outlet pipe of the air blower 1301 is connected with a fluidized bed 1302, the air outlet pipe of the air blower 1301 is connected with one end of a connecting pipe 14, the other end of the connecting pipe 14 is connected with the placing box 2, a valve is arranged at the connecting pipe 14, the bottom of one side of the fluidized bed 1302 is provided with one end of the material conveying pump 12, and the top of the other side of the fluidized bed 1302 is provided with a first discharge pipe 1303. The air blower 1301 is used for providing high-pressure airflow, which is sent into the bottom of the fluidized bed 1302 through the air outlet pipe. The micro powder input into the fluidized bed 1302 by the material conveying pump 12 is suspended in the bed body in a fluidized state under the impact of the airflow. When the airflow passes through the gap between the particles, the agglomeration is further broken by the buoyancy and shear force, so that the particles move upward with the airflow in a single dispersion state, and the agglomeration of the micro powder is separated by the airflow. The connecting pipe 14 is used for inputting the airflow in the air blower 1301 into the inside of the placing box 2, so that the material in the placing box 2 can be dried.

[0025] As shown in Figure 1 、 Figure 2 、 Figure 3 , the output end of the first discharge pipe 1303 is sequentially provided with a first classification zone 15, a second classification zone 16 and a third classification zone 17 from left to right, the outer surface of the bottom of the first classification zone 15, the second classification zone 16 and the third classification zone 17 is provided with a particle size detection sensor 18, the bottom of the first classification zone 15, the second classification zone 16 and the third classification zone 17 is provided with a storage tank 19, and the first classification zone 15, the second classification zone 16 and the third classification zone 17 are provided with classification tanks. The first classification zone 15 comprises a classification turbine arranged in the classification tank, the second classification zone 16 comprises a cyclone collector arranged in the classification tank, and the third classification zone 17 comprises a pulse dust collector arranged in the classification tank. The classification turbine in the classification tank of the first classification area 15 rotates at high speed, generating centrifugal force. The dust-containing airflow entering from the first discharge pipe 1303 is affected by the centrifugal force and the airflow resistance. The larger particles are thrown to the tank wall and fall along the wall to be collected and packaged as a first-level product. The smaller particles enter the second classification area 16 inside the cyclone collector and are separated by the centrifugal force generated by the rotating airflow. The separated particles are then collected and packaged as a second-level product. The ultrafine particles enter the third classification area 17 inside the pulse dust collector. The pulse dust collector is provided with a filter bag. The ultrafine particles are trapped by the interception of the filter bag pores. The filter bag is periodically cleaned by pulse blowing. Compressed air is sprayed back to the filter bag to make the ultrafine particles fall and be collected and packaged as a third-level product. The particle sizes of the first-level product, the second-level product, and the third-level product decrease in turn.

[0026] In this embodiment, first, the material enters the inside of the placing box 2 through the spiral feeding assembly 3, and is dispersed by the knocking assembly 5 and the screening assembly 7, and the size of the material retained on the screening plate 704 is detected; The silicon carbide powder enters from the feed port 302 of the connecting frame 301. The control console remotely controls the first motor 303 to start, drives the spiral shaft 304 to rotate, and the spiral shaft 304 pushes the powder along the inside of the connecting frame 301 to the discharge port 305 at the bottom through the rotating thrust, realizes the quantitative conveying of the material, and at the same time, the first motor 303 drives the first transmission assembly 4 and the second transmission assembly 6 to rotate synchronously, so that the cam 502 in the knocking assembly 5 and the stirring rod 503 can push the screening plate 704 to vibrate and realize up-down reciprocating motion while dispersing the material, and screen the material. The material retained on the top of the screening plate 704 is detected by the first visual sensor 709; In this embodiment, in the first step, the user sets the numerical parameters in advance according to the actual feeding amount of the material through the controller. The numerical parameters include the initial speed r0 of the first motor 303, the speed R0 of the second motor 8, and the initial angle value a0 of the screening plate 704, which is set to 90°. In addition, the preset value of the material diameter is d0, and the preset value of the retention area range is S0: The material diameter refers to the diameter of the material retained on the top of the screening plate 704. Both the material diameter and the retention area range are related to the speed of the first motor 303. The first motor 303 is used to control the speed of the first transmission assembly 4 and the second transmission assembly 6, and the frequency of the knocking assembly 5. The angle value of the screening plate 704 is used to control the flow of the discharge. When the angle value is 90°, the discharge process is not performed. After the material feeding is completed, the screening process inside the box 2 is continued for a period of time, and then the standing process is continued for a period of time. During the standing process, the first visual sensor 709 detects the actual value of the material diameter and the actual value of the residence area range, wherein the actual value of the material diameter is denoted as d1, and d1 is the average value of all measured material diameters. The actual value of the residence area range is denoted as S1; Specifically, case one: when d1≤d0, S1≤S0, it indicates that the material diameter size is overall qualified, and the residence area range on the top of the screening plate 704 is small, which meets the expected screening effect. Case two: when d1≤d0, S1>S0, it indicates that although the material diameter size is overall qualified, the residence area range is large. It is preliminarily judged that the initial knocking frequency is low, which leads to insufficient dispersion of the material on the screening plate 704. A large number of qualified small particles are not passed through the screen holes of the screening plate 704 due to aggregation, and are accumulated on the screening plate 704. Case three: when d1>d0, S1≤S0, it indicates that the material diameter size accumulated on the top of the screening plate 704 is large, but the residence area range is small. It is indicated that a small amount of material with an oversized diameter size is mixed during the feeding process, which makes it difficult to pass through the screening plate 704. Case four: when d1>d0, S1>S0, it indicates that the material diameter size accumulated on the top of the screening plate 704 is large, and the residence area range is large. It is preliminarily judged that the knocking frequency of the first motor 303 is too low, and the material dispersion is seriously insufficient, which leads to a large number of large particles accumulated on the upper surface of the screening plate 704, causing the screen holes to be blocked, so that qualified small particles cannot pass through the screen holes. For case one, the speed of the first motor 303 does not need to be adjusted. After the standing process is completed, the initial angle α0 of the screening plate 704 is adjusted to 45° to discharge the residual small particles, so as to avoid the accumulation of the residual material affecting the next round of screening. For case two, the speed r0 of the first motor 303 is increased to increase the frequency of the knocking assembly 5 and the speed of the first transmission assembly 4 and the second transmission assembly 6, so as to promote the dispersion of the material. After standing, the angle of the screening plate 704 is adjusted to 50° to slowly discharge the particles. For case three, a pretreatment screening mechanism is added before feeding to reduce the mixing of oversized particles. If the proportion of oversized particles is extremely low, the speed r0 can be kept unchanged. If oversized particles frequently appear, the speed r0 can be reduced, so that the transmission speed is slightly reduced. The screening plate 704 has sufficient time to intercept oversized particles. After standing, the angle of the screening plate 704 is adjusted to 70° to quickly discharge the small amount of large particles accumulated, so as to avoid blocking the screen holes. At the same time, the speed of the second motor 8 is increased, so that the second motor 8 drives the third transmission assembly 11 and the first dispersion roller 9 and the second dispersion roller 10 to break and disperse the oversized particles at a high frequency. For case four, the rotational speed r0 of the first motor 303 is increased, the knocking frequency is greatly increased to disperse the gathered large particles, the transmission speed is increased, and the residence time of the large particle materials on the sieve plate 704 is reduced. After standing, the angle of the sieve plate 704 is adjusted to 50°, the large particle materials are slowly discharged, the rotational speed R0 of the second motor 8 is increased, the large particle materials are broken at a high frequency, after the large particle materials are discharged, the rotational speed of the second motor 8 is reduced, and the angle of the sieve plate 704 is adjusted to 70°, so that the residual small particles can be quickly discharged; After the preliminary treatment of case two and case four, the comparison between S1 and S0 is performed again. It should be noted that a heater is arranged at the connecting pipe 14, the connecting pipe 14 is connected with a switch valve, the connecting pipe 14 can introduce the heated airflow in the induced draft fan 1301 into the inside of the placing box 2. On the one hand, the airflow can help the small-diameter sieve holes and the residual material particles to be dispersed and discharged. On the other hand, if S1 is still greater than S0, the switch valve is controlled to be opened, the heated airflow is used for drying the residual materials, and after the drying is completed, the vibration step is used for knocking and sieving the particles and discharging the materials.

[0027] Further, the preliminarily treated materials pass through the airflow dispersion assembly 13, the induced draft fan 1301 is used for providing high-pressure airflow, the materials in the fluidized bed 1302 enter from the first feeding pipe 1303, the particles are suspended in the bed body in a fluidized state under the impact of the airflow, when the airflow passes through the gap between the particles, the agglomeration of the particles is further broken by the buoyancy and shear force, the particles move upward with the airflow in a single-dispersed state, and then the airflow separation of the agglomerated fine powder is realized. The bottom of the first classification area 15, the second classification area 16 and the third classification area 17 is provided with a particle size detection sensor 18 for detecting the size of the materials, and the corresponding standard ranges are respectively 、 、 , > > ; The separated materials enter the first classification area 15, the classification turbine in the classification tank rotates at a high speed to generate a centrifugal force field, the particles in the dust-containing airflow entering from the first discharge pipe 1305 are subjected to the combined action of the centrifugal force and the airflow resistance, the coarse particles are thrown to the tank wall and fall along the wall due to the centrifugal force being greater than the airflow resistance, and if the particle size of the collected materials is detected by the particle size detection sensor 18 as D> , it indicates that the particle size is large and exceeds the standard range of qualified particles, and it can be preliminarily judged whether the classification turbine speed is insufficient. Since the centrifugal force is not enough, the coarse particles cannot be effectively separated. At this time, the classification turbine speed should be increased to enhance the centrifugal force so that more coarse particles can be separated. When the particle size is detected as D≤ Then it can fall into the storage tank 19 at the bottom for collection and packaging; Furthermore, if D> is still detected It can be determined whether the airflow speed entering the first classification zone 15 is too fast, causing coarse particles to be carried by the airflow and not thrown towards the tank wall. At this time, the airflow speed is reduced, and the control console controls the airflow dispersion component 13 to reduce the airflow speed of the fluidized bed 1302 through the blower 1301, thereby reducing the entrainment force of the airflow on the coarse particles, so that the coarse particles can fall down the wall and be collected until they are collected and packaged in the storage tank 19 at the bottom. Smaller particles in the first classification zone 15 follow the airflow into the second classification zone 16. The centrifugal force generated by the rotating airflow causes these smaller particles to settle and separate. If the collected smaller particles are detected by D> If the airflow intensity of the cyclone collector is insufficient, resulting in poor centrifugal separation, then it is necessary to increase the airflow intensity of the cyclone collector to enhance the centrifugal force. At this point, smaller particles after settling will be detected with a density of D≤... If the product is a qualified Level II product, it can be collected and packaged inside storage tank 19. The ultrafine particles in the second classification zone 16 follow the airflow into the third classification zone 17. If the particle size D intercepted by the pulse dust collector in the third classification zone 17 is greater than 16, then the ultrafine particles in the third classification zone 17 are more than 16. This indicates that the coarser particles within the ultrafine particles have not been effectively retained. It suggests a decrease in the filtration accuracy of the pulse jet dust collector's filter bags, indicating damage. The filter bags are unable to effectively separate ultrafine particles from the coarser particles within them. In this case, the entire filter bag needs to be replaced with a new one of the same model. The pulse jet dust collector will then retain the ultrafine particles again. At this point, the outer surface of the new filter bag will be covered with fine particles, with a particle size D ≤ [missing value]. It is a Class III qualified product and can be collected inside storage tank 19.

[0028] The specific usage method is as follows: Step 1: Feeding. Silicon carbide micro powder is added from the feed port 302 of the screw feeder assembly 3. The controller starts the first motor 303, which drives the screw shaft 304 to rotate. The thrust of the screw shaft 304 pushes the micro powder along the inside of the connecting frame 301 to the bottom discharge port 305, so as to realize the quantitative and stable conveying of materials and avoid accumulation or material interruption. Step 2: Preliminary dispersion and vibrating screening. The first motor 303 is driven by the first transmission component 4 and the second transmission component 6 to synchronously drive the two sets of support rods 501 of the striking component 5 to rotate, so that the stirring rod 503 in the striking component 5 initially disperses the material and simultaneously strikes the screening plate 704 to achieve vibrating screening. Step three: screening detection, the first visual sensor 709 detects the length and area of the retained material, and the first motor 303 and the second motor 8 are adjusted in speed and the angle of the sieve plate 704; Step four: material airflow dispersion, the material is sent to the fluidized bed 1302 of the airflow dispersion assembly 13 by the material pump 12, the high-pressure airflow is provided from the bottom of the fluidized bed 1302 by the draught fan 1301, the material is suspended in a fluidized state under the impact of the airflow, the buoyancy and shear force of the airflow further break the agglomeration, and the particles move upward with the airflow in a monodisperse state, so that the airflow separation of the agglomerated particles is realized; Step five: the material in a fluidized state enters the three-stage classification area through the first discharge pipe 1303 with the airflow, and then multi-stage classification is realized, finally, the classified material enters the storage tank 19 at the bottom of the three-stage classification area, and the classified material is collected and packaged.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A post-processing silicon carbide micropowder fractionation packaging system, characterized by: The utility model provides an operation platform, which comprises an operation table (1) and a controller arranged in the operation table (1), the top of the operation table (1) is provided with a placing box (2), the top of the placing box (2) is provided with a spiral feeding assembly (3), the spiral feeding assembly (3) comprises a connecting frame (301) fixedly connected with the top of the placing box (2), the top of the connecting frame (301) is provided with an inlet (302), and a first motor (303) is arranged on one side of the connecting frame (301). The output end of the first motor (303) is provided with a first transmission assembly (4), the inside of the placing box (2) is provided with a knocking assembly (5), the knocking assembly (5) comprises two groups of supporting rods (501) connected with the inside of the placing box (2) through bearings, the two groups of supporting rods (501) are connected with a second transmission assembly (6) between the same side ends, the bottom of the knocking assembly (5) is provided with a screening assembly (7), the top of the operation table (1) is provided with an airflow dispersion assembly (13), the airflow dispersion assembly (13) comprises a first discharge pipe (1303), the output end of the first discharge pipe (1303) is sequentially provided with a first classification zone (15), a second classification zone (16) and a third classification zone (17) from left to right, the bottoms of the first classification zone (15), the second classification zone (16) and the third classification zone (17) are provided with storage tanks (19), the airflow dispersion assembly (13) further comprises an air draught fan (1301) fixedly arranged on the top of the operation table (1), the air outlet pipe of the air draught fan (1301) is connected with a fluidized bed (1302), the air outlet pipe of the air draught fan (1301) is further connected with a connecting pipe (14), the other end of the connecting pipe (14) is connected with the placing box (2), a valve is arranged at the connecting pipe (14), a feeding pump (12) is arranged on the top of the operation table (1), the bottom of one side of the fluidized bed (1302) is connected with one end of the feeding pump (12), and the first discharge pipe (1303) is arranged on the top of the other side of the fluidized bed (1302).

2. The post-processing silicon carbide micropowder grading and packaging system according to claim 1, characterized in that: The first motor (303) is supported and fixed by a fixing frame and the outer wall of the placing box (2), the output end of the first motor (303) is connected with a spiral shaft (304), the bottom of the connecting frame (301) is provided with a discharge port (305), the first transmission assembly (4) comprises a first belt pulley (401) connected with the output end of the first motor (303), the outer portion of the first belt pulley (401) is in transmission connection with a first belt body (402), and the other end of the first belt body (402) is in transmission connection with a second belt pulley (403).

3. The system for grading and packaging of processed silicon carbide micropowder according to claim 2, characterized in that: One group of the supporting rods (501) is in transmission connection with the second belt pulley (403).

4. The system for grading and packaging of processed microsilica of claim 3, wherein: The second transmission assembly (6) includes a third pulley (601) fixedly connected with one end of one of the support rods (501), the outer surface of the third pulley (601) is in transmission connection with a second belt body (602), the other end of the second belt body (602) is in transmission connection with a fourth pulley (603), the inner part of the fourth pulley (603) is fixedly connected with one end of the adjacent support rod (501), the outer surfaces of the two groups of support rods (501) located inside the placing box (2) are fixedly connected with cams (502), and the outer surfaces of the two sides of the cam (502) are both provided with stirring rods (503).

5. The post-processing silicon carbide micropowder classification and packaging system of claim 4, wherein: The screening assembly (7) includes a chute (701) opened on the inside of both sides of the placing box (2), the inside of the chute (701) is fixedly connected with a sliding rod (702), the outer top end of the sliding rod (702) is in sliding connection with a sliding block (703), one side of the sliding block (703) is hingedly connected with a screening plate (704), and the top of the screening plate (704) is provided with a first visual sensor (709).

6. The system for grading and packaging of processed microsilica of claim 5, wherein: The bottom of the sliding block (703) is fixedly connected with a connecting rod (705), the bottom of the connecting rod (705) is fixedly connected with a sliding block (706), the sliding block (706) is sleeved on the outside of the sliding rod (702), the bottom of the sliding block (706) and the bottom of the chute (701) are fixedly connected with a supporting spring (707), the supporting spring (707) is sleeved on the outer surface of the sliding rod (702), and the sliding block (706) and the screening plate (704) are hingedly connected with an electric push rod (708).

7. The system for grading and packaging of processed microsilica of claim 6, wherein: The outer surface of the placing box (2) is provided with a second motor (8) below the support rod (501), the output end of the second motor (8) is connected with a first dispersion roller (9), one side of the first dispersion roller (9) is provided with a second dispersion roller (10), and the first dispersion roller (9) and the second dispersion roller (10) are provided with a third transmission assembly (11). The third transmission assembly (11) includes a fifth pulley (1101) fixedly connected with one end of the outer surface of the first dispersion roller (9), the outer part of the fifth pulley (1101) is connected with a third belt body (1102), one end of the third belt body (1102) is in transmission connection with a sixth pulley (1103), the outer part of the second motor (8) is provided with a rotating speed sensor (1104), and one end of the material conveying pump (12) is connected with the top of the placing box (2).

8. The system for grading and packaging of processed microsilica of claim 7, wherein: The bottom outer surfaces of the first classification area (15), the second classification area (16) and the third classification area (17) are all provided with granularity detection sensors (18).

9. A method for using a post-processing silicon carbide micro-powder grading and packaging system, which is suitable for the post-processing silicon carbide micro-powder grading and packaging system of claim 8, characterized in that: Step one: feeding, the micro-powder of silicon carbide is added from the feeding port (302) of the screw feeding assembly (3), the controller starts the first motor (303), drives the rotation of the screw shaft (304), and pushes the micro-powder along the inside of the connecting frame (301) to the bottom discharge port (305) through the thrust of the screw shaft (304), realizes the quantitative and stable conveying of the material, and avoids accumulation or material breakage; Step two: preliminary dispersion and vibration screening, the first motor (303) is driven by the first transmission assembly (4) and the second transmission assembly (6), synchronously drives the rotation of the two groups of support rods (501) of the knocking assembly (5), so that the stirring rod (503) in the knocking assembly (5) preliminarily disperses the material, and knocks the screen plate (704) at the same time, realizes vibration screening; Step three: screening detection, the first visual sensor (709) detects the length and area range of the retained material, adjusts the rotation speed of the first motor (303) and the second motor (8) and the angle of the screen plate (704); Step four: material airflow dispersion, the material is sent into the fluidized bed (1302) of the airflow dispersion assembly (13) by the feeding pump (12), the induced draft fan (1301) provides high-pressure airflow from the bottom of the fluidized bed (1302), the material is suspended in a fluidized state under the impact of the airflow, the buoyancy and shear force of the airflow further break the agglomeration, so that the particles move upward with the airflow in a single dispersed state, realizing the airflow separation of the agglomerated particles; Step five: the material in a fluidized state enters the three-stage classification area through the first discharge pipe (1303) along with the airflow, and then realizes multi-stage classification, finally, the classified material enters the storage tank (19) at the bottom of the three-stage classification area, realizes classification collection and packaging.

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