Airflow classifier for silica powder

Abstract

The invention relates to the technical field of airflow graders, in particular to an airflow grader for silica powder, which comprises a processing shell, a discharging shell capable of outputting fine materials is mounted at the upper end of the processing shell, a feeding hopper is mounted on the discharging shell, and the output end of the feeding hopper extends into the processing shell; a rotating shaft extending to the position above the discharging shell is arranged in the feeding hopper. In the using process of the device, the mode of treating coarse materials for multiple times is adopted, so that the coarse materials and fine materials can be classified more thoroughly, meanwhile, the speed of primary air can be increased, the primary air has certain rotating force under the action of the protruding blocks, further, the contact force between the materials and the classification wheel can be better, and the classification efficiency is improved. And therefore, fine materials can enter the grading wheel more quickly and better and then are discharged, the grading precision of the device is improved, and the practicability of the device is indirectly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air classifiers, and more specifically, the present invention relates to an air classifier for silica powder. Background Art

[0002] As the name implies, an air classifier is a device that uses air to classify and screen materials. The air classifier plays an important role in the production of 2.5-micron silica powder. However, the following problems will occur when the existing air classifier is in use: when the existing air classifier is in use, only the entry of primary air and the auxiliary screening of the classification wheel are relied on inside to complete the purpose of classifying silica powder. In this case, there will still be a situation where some qualified fine materials are carried out by the coarse materials, which further leads to a relatively low classification rate of the device and affects the classification accuracy of the device.

[0003] Therefore, we propose an air classifier for silica powder to solve the above problems. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an air classifier for silica powder to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: an air classifier for silica powder, including a processing housing. An outlet housing capable of outputting fine materials is installed at the upper end of the processing housing. A feeding funnel is installed on the outlet housing, and the output end of the feeding funnel extends into the processing housing; a rotating shaft extending above the outlet housing is provided in the feeding funnel. The rotating shaft can rotate with the assistance of a driving motor. A distributing plate is installed at the lower end of the rotating shaft. A classification wheel capable of being connected to the distributing plate is installed on the processing housing, and the classification wheel is located above the distributing plate; a processing member is installed on the rotating shaft. The processing member is located in the feeding funnel and is between the classification wheel and the distributing plate; an air inlet housing connected to an external air source is installed at the lower end of the processing housing. An accelerating member capable of accelerating air flow is installed in the air inlet housing; a discharging hopper is installed at the lower end of the air inlet housing. A feeding pipe capable of discharging coarse materials is installed at the lower end of the discharging hopper.

[0006] In a preferred embodiment, the processing member includes a processing seat sleeved on the rotating shaft. The processing seat is communicated with an external air source through the rotating shaft. The feeding funnel is composed of a funnel and a conveying channel. The processing seat is located in the conveying channel. A plurality of placing grooves are provided on the inner side wall of the processing seat. A rotating member in contact with the conveying channel is rotatably connected in each of the plurality of placing grooves. A plurality of discharging ports are provided at the lower end of the processing seat, and the plurality of discharging ports are respectively communicated with the plurality of placing grooves. A plurality of air outlet channels are provided on the processing seat. A plurality of fine holes are provided on the side wall of the conveying channel, and the plurality of fine holes are respectively on one side of the air outlet channels. The aperture of the fine holes is smaller than that of the air outlet channels.

[0007] In a preferred embodiment, an air supply channel is provided on the rotating shaft. A plurality of exhaust ports communicating with the air outlet channel are provided on the side wall of the air supply channel. The cross-section of the exhaust port is trapezoidal, and an accelerating cross plate is fixedly connected to the inner side wall of the exhaust port. The end with a smaller diameter of the exhaust port is connected to the air outlet channel. A collar is coaxially sleeved on the side wall of the rotating shaft. The collar is communicated with the air supply channel. Two sealing bearings are provided at the connection between the collar and the rotating shaft. An intake pipe is fixedly connected to the input end of the collar, and the intake pipe is connected to an external air pump.

[0008] In a preferred embodiment, the rotating member includes a rotating wheel rotatably connected in the placement groove. A plurality of through holes are provided on the end face of the rotating wheel. A plurality of alloy rings are sleeved on the side wall of the rotating wheel. A plurality of metal elastic plates are fixedly connected to the inner side wall of the alloy ring. One end of each of the plurality of metal elastic plates is fixedly connected to a cross column. A spring seat is installed on the inner side wall of the cross column. A extending rod is fixedly connected to the side wall of the spring seat. One end of the extending rod passes through the side wall of the cross column and extends to the outside. A magnetic ball is fixedly connected to one end of the extending rod, and a plurality of steel balls are provided in the magnetic ball.

[0009] In a preferred embodiment, the accelerating member includes a gas blocking ring provided in the intake housing, and the gas blocking ring can rotate. The end face of the gas blocking ring is an arc surface, and the arc surface is on one side of the processing housing. The cross-section of the gas blocking ring is trapezoidal, and a plurality of convex blocks are fixedly connected to the side wall of the gas blocking ring. Guide wind arc surfaces are provided on the upper and lower end faces of the plurality of convex blocks, and a plurality of bending holes are provided on the end faces of the plurality of convex blocks.

[0010] In a preferred embodiment, a first bearing connected to the gas blocking ring is installed on the inner side wall of the intake housing. A first gear is coaxially sleeved on the outer side wall of the gas blocking ring. A sealing box communicated therewith is fixedly connected to the side wall of the intake housing. A plurality of dust-proof bristles are fixedly connected to the side wall of the sealing box, and the dust-proof bristles are at the connection between the sealing box and the intake housing. A second gear capable of meshing with the first gear is provided in the sealing box, and a motor connected to the second gear is installed on the processing housing.

[0011] In a preferred embodiment, a blowing member is provided in the feeding pipe. The blowing member includes a blowing bent pipe penetrating through the feeding pipe. A rotatable air outlet head is provided at the output end of the blowing bent pipe. A plurality of air outlet holes communicating with the blowing bent pipe are provided through the air outlet head. The cross-sections of the plurality of air outlet holes are all trapezoidal. Guide wind spiral sheets are fixedly connected to the inner side walls of the plurality of air outlet holes. Dust-proof covers are provided at the output ends of the plurality of air outlet holes. A diversion seat connected thereto through a connecting column is provided at the lower end of the material distribution plate.

[0012] In a preferred embodiment, a strong magnetic ring is inlaid on the side wall of the air outlet head, two second bearings are sleeved on the outer side wall of the feeding pipe, an electromagnetic ring is arranged between the two second bearings, a third gear is sleeved on the outer side wall of the electromagnetic ring, a rotating gear matching with the third gear is arranged on one side of the feeding pipe, and the rotating gear is connected to an external motor. A plurality of vibrating members are fixedly connected to the side wall of the air outlet head, and a plurality of metal knocking rods are fixedly connected to the side wall of the blowing and bending pipe. The plurality of metal knocking rods are respectively located between the plurality of vibrating members.

[0013] In a preferred embodiment, the vibrating member includes a metal semi-cylinder installed on the air outlet head. A spring is fixedly connected to the side wall of the metal semi-cylinder, one end of the spring is fixedly connected to a metal plate, two connecting rods are fixedly connected to the side wall of the metal semi-cylinder, one ends of the two connecting rods are both fixedly connected to metal balls, the two metal balls are respectively located on the left and right sides of the metal plate, and a plurality of hollow vibrating balls are arranged in each of the two metal balls.

[0014] The technical effects and advantages of the present invention: During the use of the present device, by adopting the method of processing the coarse materials multiple times, the coarse materials and the fine materials can be classified more thoroughly. At the same time, the speed of the primary air can be increased. Meanwhile, under the action of the convex blocks, the primary air has a certain rotational force, which can further improve the contact force between the materials and the classification wheel, so that the fine materials can enter the classification wheel faster and better and then be discharged, thereby improving the classification accuracy of the device and indirectly improving the practicality of the device. Brief Description of the Drawings

[0015] Figure 1 is the connection structure schematic diagram of the present invention; Figure 2 is the side view connection structure schematic diagram of the present invention; Figure 3 is the first partial cross-sectional connection structure schematic diagram of the present invention; Figure 4 is Figure 3 the partial connection structure schematic diagram of; Figure 5 is the partial connection structure schematic diagram of the processing member in the present invention; Figure 6 is the partial top view connection structure schematic diagram of the rotating member in the present invention; Figure 7 is the partial connection structure schematic diagram of the alloy ring and the magnetic ball in the present invention; Figure 8 is the second partial cross-sectional connection structure schematic diagram of the present invention; Figure 9 is the third partial cross-sectional connection structure schematic diagram of the present invention; Figure 10Schematic diagram of the fourth partial cross-sectional connection structure of the present invention; Figure 11 Schematic diagram of the partial connection structure of the blowing member in the present invention; Figure 12 Schematic diagram of the partial connection structure of the air outlet head and the electromagnetic ring in the present invention; Figure 13 Schematic diagram of the internal connection structure of the vibrating member in the present invention.

[0016] Reference numerals are: 1 processing housing, 2 discharge housing, 3 feed hopper, 4 rotating shaft; 5 processing member, 51 processing seat, 52 placement groove, 53 rotating member, 54 discharge port, 55 air outlet channel; 511 air supply channel, 512 collar, 513 sealing bearing, 514 intake pipe, 515 exhaust port, 516 acceleration cross plate; 531 rotating wheel, 532 through hole, 533 alloy ring, 534 metal elastic plate, 535 cross column, 536 spring seat, 537 extension rod, 538 magnetic ball, 539 steel ball; 6 material distribution plate, 7 grading wheel, 8 intake housing; 9 accelerating member, 91 air blocking ring, 92 arc surface, 93 convex block, 94 wind guiding arc surface, 95 bending hole; 911 first bearing, 912 first gear, 913 sealing box, 914 second gear, 915 motor, 10 discharge hopper, 11 feed pipe; 12 blowing member, 121 blowing bent pipe, 122 air outlet head, 123 air outlet hole, 124 wind guiding spiral piece, 125 dust cover, 126 diversion seat, 127 connecting column; 1221 strong magnetic ring, 1222 second bearing, 1223 electromagnetic ring, 1224 third gear, 1225 vibrating member, 1226 metal knocking rod; 12251 metal semi-cylinder, 12252 spring, 12253 metal plate, 12254 connecting rod, 12255 metal ball, 12256 hollow vibrating ball. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Refer to Figure 1 、 Figure 2 and Figure 3, an air flow classifier for silicon micropowder, comprising a processing shell 1, a discharging shell 2 is installed on the processing shell 1, and it is particularly noteworthy that the shape of the discharging shell 2 is a volute, wherein a feeding funnel 3 is installed on the discharging shell 2, and two feeding pipes connected with the feeding funnel 3 are installed on the discharging shell 2, and it is particularly noteworthy that the staff can directly convey the material to the feeding pipe through the conveying equipment, so that the material can enter the feeding funnel 3, wherein a rotating shaft 4 is penetrated by the discharging shell 2, and the lower end of the rotating shaft 4 extends to the bottom of the feeding funnel 3, and it is particularly noteworthy that a mounting plate is installed on the discharging shell 2, and a driving motor is installed on the mounting plate, and the driving motor is connected to the rotating shaft 4 through a pulley group. When the driving motor is working, the rotating shaft 4 can be rotated with the assistance of the pulley group; Reference Figure 1 、 Figure 2 and Figure 3 At the same time, the lower end of the rotating shaft 4 is fixedly connected to the distribution plate 6 below the feed funnel 3. It is particularly noteworthy that the distribution plate 6 is consistent with the distribution plate structure in the existing airflow classifier. This is a prior art and will not be described in detail here. At the same time, a classifying wheel 7 is rotatably connected to the processing shell 1. It is particularly noteworthy that the connection relationship between the classifying wheel 7 and the processing shell 1 is consistent with the connection relationship between the classifying wheel and the shell in the airflow classifier in the prior art. This is a prior art and will not be described in detail here. At the same time, it is particularly noteworthy that a sleeve plate is fixedly connected to the inner side wall of the classifying wheel 7, and the sleeve plate sleeve It is connected to the conveying channel on the feed funnel 3, which can effectively prevent the material from entering the grading wheel 7 from below the grading wheel 7, and the working principle here is that when the material enters the distribution plate 6 from the feed funnel 3, the distribution plate 6 continuously rotates, so that the material can be thrown out, and under the influence of the airflow below, the powder and the grading wheel 7 can be in contact, so that the powder that meets the requirements can enter the inside of the grading wheel 7, and then with the assistance of the airflow, the powder can be discharged from the discharge shell 2, which can ensure the normal use of the device.

[0019] Reference Figure 1 、 Figure 2 and Figure 3 The lower end of the processing shell 1 is equipped with an air intake shell 8, and an accelerator 9 is provided in the air intake shell 8. It is particularly noteworthy that the shape of the air intake shell 8 is also a volute. When the external air pump is working, the air flow can enter the air intake shell 8. With the assistance of the accelerator 9, the air flow can rush to the area between the classifying wheel 7 and the processing shell 1, so that the material can be brought into the discharge shell 2, further ensuring the normal use of the device, and the relatively large material shell then enters the feed pipe 11 from the discharge hopper 10. It is particularly noteworthy that a dust removal and ash unloading valve is provided in the feed pipe 11, so that the material can be discharged normally, thereby ensuring the normal use of the device.

[0020] Reference Figure 3 、 Figure 4 and Figure 5 On the rotating shaft 4, a processing part 5 is installed. The processing part 5 includes a processing seat 51 sleeved on the rotating shaft 4, and the processing seat 51 can conduct air. It should be particularly noted that the feeding funnel 3 is composed of a funnel and a conveying channel. The processing seat 51 is located in the conveying channel. A plurality of placing grooves 52 are provided on the inner side wall of the processing seat 51. In each of the plurality of placing grooves 52, a rotating part 53 in contact with the conveying channel is rotatably connected. A plurality of discharge ports 54 are provided at the lower end of the processing seat 51, and the plurality of discharge ports 54 are respectively communicated with the plurality of placing grooves 52. A plurality of air outlet channels 55 are provided on the processing seat 51. It should be particularly noted that a plurality of fine holes are provided on the side wall of the conveying channel, and the plurality of fine holes are respectively on one side of the air outlet channels 55. It should be particularly noted that the aperture of the fine holes is smaller than that of the air outlet channels 55.

[0021] Reference Figure 4 and Figure 5 On the rotating shaft 4, a air supply channel 511 is provided. A plurality of exhaust ports 515 communicating with the air outlet channels 55 are provided on the side wall of the air supply channel 511. It should be particularly noted that the cross-section of the exhaust port 515 is trapezoidal, and an accelerating cross plate 516 is fixedly connected to the inner side wall of the exhaust port 515. At the same time, the smaller-diameter end of the exhaust port 515 is connected to the air outlet channel 55. When the air flow passes through the accelerating cross plate 516, affected by the accelerating cross plate 516, the flow velocity of the air flow on both sides of the accelerating cross plate 516 can be increased, further increasing the gas flow velocity of the air outlet channel 55, so that the oscillating powder can be discharged from the fine holes on the side wall of the conveying channel. At the same time, a collar 512 is coaxially sleeved on the side wall of the rotating shaft 4. The collar 512 is communicated with the air supply channel 511. Two sealing bearings 513 are provided at the connection between the collar 512 and the rotating shaft 4. The input end of the collar 512 is fixedly connected with an air inlet pipe 514, and the air inlet pipe 514 is connected to an external air pump.

[0022] Reference Figure 4 、 Figure 5 、 Figure 6 and Figure 7, the rotating member 53 includes a rotating wheel 531 rotatably connected to the placement groove 52. A plurality of through holes 532 are provided on the end surface of the rotating wheel 531. A plurality of alloy rings 533 are sleeved on the side wall of the rotating wheel 531. A plurality of metal elastic plates 534 are fixedly connected to the inner side wall of the alloy ring 533. One end of each of the plurality of metal elastic plates 534 is fixedly connected with a cross column 535. A spring seat 536 is installed on the inner side wall of the cross column 535. It should be particularly noted that, as the name implies, the spring seat 536 is composed of a spring and a moving seat. A extension rod 537 is fixedly connected to the side wall of the spring seat 536. One end of the extension rod 537 passes through the side wall of the cross column 535 and extends to the outside. A magnetic ball 538 is fixedly connected to one end of the extension rod 537. A plurality of steel balls 539 are provided in the magnetic ball 538. It should be particularly noted that the instruction manual appendix Figure 7 only shows the positional relationship between the metal elastic plate 534 and the alloy ring 533, and its specific ratio can be adjusted according to the actual production process. It should be particularly noted that a plurality of magnetic blocks can be inlaid on the side wall of the conveying channel. In this way, when the alloy ring 533 rotates, and it should be particularly noted that the alloy ring 533 is not magnetically connected to the magnetic ball 538. Therefore, when the magnetic ball 538 is on one side of the magnetic block, the magnetic ball 538 moves accordingly, so that the steel balls 539 can shake, and further can cause slight vibration on the alloy ring 533, and further can improve the oscillation force of the powder in the conveying channel, so as to facilitate the discharge of the powder.

[0023] Refer to Figure 8 , Figure 9 and Figure 10 , the accelerating member 9 includes a gas blocking ring 91 arranged in the air inlet housing 8, and the gas blocking ring 91 can rotate to accelerate the flow rate of air. At the same time, the end surface of the gas blocking ring 91 is an arc surface 92, and the arc surface 92 is on one side of the processing housing 1, so that the material can be discharged from the arc surface 92 of the gas blocking ring 91, further avoiding the accumulation of materials. At the same time, the cross section of the gas blocking ring 91 is trapezoidal, and a plurality of convex blocks 93 are fixedly connected to the side wall of the gas blocking ring 92. Guide wind arc surfaces 94 are provided on the upper and lower end surfaces of the plurality of convex blocks 93. When the air flow enters one side of the gas blocking ring 91 from the air inlet housing 8, the gas can enter from the lower end of the gas blocking ring 91. At this time, with the assistance of the convex blocks 93 and the guide wind arc surfaces 94, the air flow can enter the processing housing 1 more smoothly and stably. A plurality of bending holes 95 are provided on the end surfaces of the plurality of convex blocks 93. The plurality of bending holes 95 can prevent materials from accumulating on the convex blocks 93. As the name implies, the bending holes 95 are in a bending shape, so that the materials can be better discharged from the convex blocks 93 to ensure the normal use of the device.

[0024] Refer to Figure 10, a first bearing 911 connected to the air baffle ring 91 is installed on the inner side wall of the intake housing 8. A first gear 912 is coaxially sleeved on the outer side wall of the air baffle ring 91. A sealing box 913 connected thereto is fixedly connected to the side wall of the intake housing 8. A plurality of dust-proof bristles are fixedly connected to the side wall of the sealing box 913, and the dust-proof bristles are at the connection between the sealing box 913 and the intake housing 8. A second gear 914 capable of meshing with the first gear 912 is provided in the sealing box 913. A motor 915 connected to the second gear 914 is installed on the processing housing 1.

[0025] Referring to Figure 9 and Figure 11 , a blowing member 12 is provided in the feeding pipe 11. The blowing member 12 includes a blowing bent pipe 121 penetrating through the feeding pipe 11. A rotatable air outlet head 122 is provided at the output end of the blowing bent pipe 121. A plurality of air outlet holes 123 communicated with the blowing bent pipe 121 are provided through the air outlet head 122. It should be particularly noted that the cross-sections of the plurality of air outlet holes 123 are all trapezoidal. Guide wind spiral vanes 124 are fixedly connected to the inner side walls of the plurality of air outlet holes 123. It should be particularly noted that the spiral of the guide wind spiral vane 124 is similar to the spiral on a spiral column. Dust-proof covers 125 are provided at the output ends of the plurality of air outlet holes 123. A diversion seat 126 connected thereto through a connecting column 127 is provided at the lower end of the material distribution plate 6, and the diversion seat 126 is an inverted cone.

[0026] Referring to Figure 11 and Figure 12 , a strong magnetic ring 1221 is embedded on the side wall of the air outlet head 122. Two second bearings 1222 are sleeved on the outer side wall of the feeding pipe 11. An electromagnetic ring 1223 is provided between the two second bearings 1222. A third gear 1224 is sleeved on the outer side wall of the electromagnetic ring 1223. It should be further noted that a rotating gear matched with the third gear 1224 is provided on one side of the feeding pipe 11, and the rotating gear is connected to an external motor. In this way, when the external motor works, the third gear 1224 can be rotated, so that the electromagnetic ring 1223 can be rotated. At the same time, when the electromagnetic ring 1223 works, the strong magnetic ring 1221 can be rotated. A plurality of vibrating members 1225 are fixedly connected to the side wall of the air outlet head 122. A plurality of metal knocking rods 1226 are fixedly connected to the side wall of the blowing bent pipe 121, and the plurality of metal knocking rods 1226 are respectively between the plurality of vibrating members 1225.

[0027] Referring to Figure 12 and Figure 13, the vibrating member 1225 includes a metal semi-cylinder 12251 mounted on the air outlet head 122. A spring 12252 is fixedly connected to the side wall of the metal semi-cylinder 12251. One end of the spring 12252 is fixedly connected to a metal plate 12253. Two connecting rods 12254 are fixedly connected to the side wall of the metal semi-cylinder 12251. One end of each of the two connecting rods 12254 is fixedly connected to a metal ball 12255. The two metal balls 12255 are respectively located on the left and right sides of the metal plate 12253. A plurality of hollow vibrating balls 12256 are provided in each of the two metal balls 12252.

[0028] Working principle: First, the staff can first convey the material into the feeding pipeline, so that the material can enter the feeding funnel 3. At this time, the external motor starts to work. After the external motor works, with the assistance of the pulley group, the rotating shaft 4 can be rotated. When the rotating shaft 4 rotates, the processing seat 51 can be rotated. It should be noted that the cross-section of the processing seat 51 is trapezoidal, so that the material can enter between the conveying channel and the processing seat 51. When the processing seat 51 rotates, the rotating wheel 531 can be rotated, and further the alloy ring 533 can be rotated. It should be noted that when the rotating ring 531 rotates, the material between the conveying channel and the processing seat 51 can be ground and processed. Secondly, since there are multiple strong magnets on the side wall of the conveying channel, when the magnetic ball moves to one side of the strong magnet, under the influence of magnetism, the magnetic ball 538 can be moved, and further the magnetic ball 538 can be made to impact on the alloy ring 533. At the same time, the steel ball 539 is also shaking, so that the alloy ring 533 and the conveying channel have a certain vibration, and thus the material on the rotating wheel 531 can be shaken up. At this time, the external fan starts to work, so that the external air source can enter the collar 512 from the air inlet pipe 514. Since the collar 512 and the rotating shaft 4 are connected in communication, the gas can enter the rotating shaft 4. It should be noted that the exhaust port 515 and the accelerating cross plate 516 are provided, which can accelerate the air flow rate. The rapidly flowing air flow can enter the processing seat 51, so that the air flow can be ejected from the processing seat 51. It should be noted that the air flow impact here is not very large to prevent the material from being discharged from the feeding pipeline. Then, since through holes are provided on the surface of the conveying channel, the finer material can be discharged from the through holes on the surface of the conveying channel into the classification wheel 7, so that the material can be classified and ground for the first time, and the purpose of the device for processing the material for the first time is further completed.

[0029] Secondly, after the materials are processed, they will fall onto the material distribution plate 6. As the material distribution plate 6 rotates continuously, the materials can continuously impact the inner wall of the processing housing 1. At this time, it should be particularly noted that external gas continuously enters from the air inlet housing 8. At this time, the motor 915 starts to work. When the motor 915 works, the second gear 914 can be rotated. Since the sealing box 913 is provided with dust-proof bristles, it can effectively prevent materials from entering the sealing box 913. When the second gear 914 rotates, the first gear 912 can be rotated, and further the air blocking ring 91 can be rotated. When the air blocking ring 91 rotates, the convex block 93 can be rotated. It should be particularly noted that external gas enters from the lower end of the air blocking ring 91. When the convex block 93 and the air blocking ring 91 rotate, the flow rate of the gas can be increased. Secondly, the air guiding arc surface 94 can make the gas enter more smoothly, so that the gas can enter the position between the material distribution plate 6 and the grading wheel 7, enabling suitable materials to be directly discharged from the grading wheel 7. It should be particularly noted that the bending hole 95 can effectively prevent impurities from accumulating on the convex block 93, thus ensuring the normal use of the device.

[0030] Finally, when the coarse-grained material passes through the discharge hopper 10 and enters the feed pipe 11, at this time, the external air pump starts to work. When the external air pump works, gas can enter the blowing and bending pipe 121, so that the gas can be discharged from the air outlet head 122. It should be particularly noted that, with the assistance of the air outlet holes 123 and the air guiding spiral fins 124, the flow rate of the gas can be accelerated. It should be particularly noted that the gas can drive the material to the guide seat 126. It should be particularly noted that the tail end of the guide seat 126 is close to the origin circulation position of the intake housing 8, so that the coarse material can come into contact with the classification wheel 7 again, and the material can be classified and processed multiple times. It should be particularly noted that when the external impact work is carried out, the electromagnetic ring 1223 can work. When the electromagnetic ring 1223 is electrified and has magnetism, the strong magnetic ring 1221 can rotate, so that the air outlet head 122 can rotate. Further, the metal knocking rod 1226 can continuously knock on the metal semi-cylinder 12251. At this time, the spring 12262 is affected by the knocking force, so that the metal plate 12253 can continuously shake, so that the metal plate 12253 can impact the metal ball 12255, so that the air vibration ball 12256 can continuously shake, so that the dust-proof cover 125 on the air outlet head 122 can be blocked, further ensuring the normal use of the device. It should be particularly noted that the electromagnetic ring 1223 is composed of a coil and a ring-shaped magnet. The coil is wound around the ring-shaped magnet, and both ends of the coil are respectively connected with electrode guide pieces. One side of the electrode guide piece is provided with an energized ring seat, and the energized ring seat is provided with a metal piece that can be energized. The electrode guide piece is always in contact with the metal piece. Therefore, when the electromagnetic ring 1223 rotates, due to the assistance of the energized ring seat, it will not affect the generation of the magnetic force of the electromagnetic ring 1223. It should be particularly noted that the two energized ring seats are respectively located on the upper and lower sides of the electromagnetic ring 1223 to ensure the normal use of the device. It should be particularly noted that the blowing and bending pipe 121 is provided with an annular groove, and the inner bottom of the annular groove is provided with an elastic metal annular piece. The lower end of the air outlet head 122 is installed with a ball in contact with the metal annular piece, so that the air outlet head 122 can keep rotating. It should be particularly noted that the ball is embedded in the vertical column. It should be particularly noted that the vertical column is a telescopic rod that can be telescoped and has a spring inside, further ensuring that the ball can contact the metal annular piece. The setting of the vertical column can make the air outlet head 122 fit into the blowing and bending pipe 121. It should be particularly noted that the blowing and bending pipe 121 is also provided with a limiting groove, and the vertical column is provided with a convex block matching the limiting groove. It should be particularly noted that the convex block is smaller than the limiting groove, so that the air outlet head 122 can have a certain displacement force. The lower end of the air outlet head 122 extends into the blowing and bending pipe 121, thus avoiding gas leakage and enabling the air outlet head 122 to be used normally.

[0031] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "linked" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change; Second, in the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally, the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air classifier for silica fume, characterized in that; It includes a processing housing (1). An outlet housing (2) capable of outputting fine materials is installed at the upper end of the processing housing (1). A feed hopper (3) is installed on the outlet housing (2), and the output end of the feed hopper (3) extends into the processing housing (1). A rotating shaft (4) extending above the outlet housing (2) is provided in the feed hopper (3). The rotating shaft (4) can rotate with the assistance of a driving motor. A distribution plate (6) is installed at the lower end of the rotating shaft (4). A grading wheel (7) capable of being connected to the distribution plate (6) is installed on the processing housing (1), and the grading wheel (7) is located above the distribution plate (6). A processing member (5) is installed on the rotating shaft (4). The processing member (5) is in the feed hopper (3), and the processing member (5) is between the grading wheel (7) and the distribution plate (6). An air inlet housing (8) connected to an external air source is installed at the lower end of the processing housing (1). An accelerating member (9) capable of accelerating air flow is installed in the air inlet housing (8). A discharge hopper (10) is installed at the lower end of the air inlet housing (8). A feed pipe (11) capable of discharging coarse materials is installed at the lower end of the discharge hopper (10).

2. The air classifier for silica fume according to claim 1, characterized in that: The processing member (5) includes a processing seat (51) installed and sleeved on the rotating shaft (4). The processing seat (51) is communicated with an external air source through the rotating shaft (4). The feed hopper (3) is composed of a funnel and a conveying channel. The processing seat (51) is in the conveying channel. A plurality of placement grooves (52) are provided on the inner side wall of the processing seat (51). A rotating member (53) in contact with the conveying channel is rotatably connected in each of the plurality of placement grooves (52). A plurality of discharge ports (54) are provided at the lower end of the processing seat (51), and the plurality of discharge ports (54) are respectively communicated with the plurality of placement grooves (52). A plurality of air outlet channels (55) are provided on the processing seat (51). A plurality of fine holes are provided on the side wall of the conveying channel, and the plurality of fine holes are respectively on one side of the air outlet channels (55). The aperture of the fine holes is smaller than that of the air outlet channels (55).

3. The air classifier for silica fume according to claim 2, wherein: A air supply channel (511) is provided on the rotating shaft (4). A plurality of exhaust ports (515) communicated with the air outlet channels (55) are provided on the side wall of the air supply channel (511). The cross section of the exhaust port (515) is trapezoidal, and an accelerating cross plate (516) is fixedly connected to the inner side wall of the exhaust port (515). The end with a smaller diameter of the exhaust port (515) is connected to the air outlet channel (55). A collar (512) is coaxially sleeved on the side wall of the rotating shaft (4). The collar (512) is communicated with the air supply channel (511). Two sealing bearings (513) are provided at the connection between the collar (512) and the rotating shaft (4). An air inlet pipe (514) is fixedly connected to the input end of the collar (512), and the air inlet pipe (514) is connected to an external air pump.

4. The air classifier for silica powder according to claim 3, characterized in that: The rotating member (53) includes a rotating wheel (531) rotatably connected to the placement groove (52). A plurality of through holes (532) are provided on the end surface of the rotating wheel (531). A plurality of alloy rings (533) are sleeved on the side wall of the rotating wheel (531). A plurality of metal elastic plates (534) are fixedly connected to the inner side wall of the alloy ring (533). One end of each of the plurality of metal elastic plates (534) is fixedly connected to a cross column (535). A spring seat (536) is installed on the inner side wall of the cross column (535). A extension rod (537) is fixedly connected to the side wall of the spring seat (536). One end of the extension rod (537) passes through the side wall of the cross column (535) and extends to the outside. A magnetic ball (538) is fixedly connected to one end of the extension rod (537). A plurality of steel balls (539) are provided in the magnetic ball (538).

5. The air classifier for silica fume according to claim 1, wherein: The accelerating member (9) includes a gas blocking ring (91) disposed in the intake housing (8), and the gas blocking ring (91) is rotatable. The end surface of the gas blocking ring (91) is an arc surface (92), and the arc surface (92) is on one side of the processing housing (1). The cross section of the gas blocking ring (91) is trapezoidal. A plurality of convex blocks (93) are fixedly connected to the side wall of the gas blocking ring (92). Guide wind arc surfaces (94) are provided on the upper and lower end surfaces of the plurality of convex blocks (93). A plurality of bending holes (95) are provided on the end surfaces of the plurality of convex blocks (93).

6. The air classifier for silica fume according to claim 5, characterized in that: A first bearing (911) connected to the gas blocking ring (91) is installed on the inner side wall of the intake housing (8). A first gear (912) is coaxially sleeved on the outer side wall of the gas blocking ring (91). A sealing box (913) communicating therewith is fixedly connected to the side wall of the intake housing (8). A plurality of dust-proof bristles are fixedly connected to the side wall of the sealing box (913), and the dust-proof bristles are at the connection between the sealing box (913) and the intake housing (8). A second gear (914) capable of meshing with the first gear (912) is provided in the sealing box (913). A motor (915) connected to the second gear (914) is installed on the processing housing (1).

7. The air classifier for silica powder according to claim 1, wherein: A blowing member (12) is provided in the feeding pipe (11). The blowing member (12) includes a blowing bent pipe (121) penetrating through the feeding pipe (11). A rotatable air outlet head (122) is provided at the output end of the blowing bent pipe (121). A plurality of air outlet holes (123) communicating with the blowing bent pipe (121) are provided through the air outlet head (122). The cross sections of the plurality of air outlet holes (123) are all trapezoidal. Guide wind spiral sheets (124) are fixedly connected to the inner side walls of the plurality of air outlet holes (123). Dust-proof covers (125) are provided at the output ends of the plurality of air outlet holes (123). A diversion seat (126) connected thereto through a connecting column (127) is provided at the lower end of the material distribution plate (6).

8. The air classifier for silica fume according to claim 7, wherein: A strong magnetic ring (1221) is inlaid on the side wall of the air outlet head (122). Two second bearings (1222) are sleeved on the outer side wall of the feeding pipe (11). An electromagnetic ring (1223) is arranged between the two second bearings (1222). A third gear (1224) is sleeved on the outer side wall of the electromagnetic ring (1223). A rotating gear matching with the third gear (1224) is arranged on one side of the feeding pipe (11), and the rotating gear is connected to an external motor. A plurality of vibrating parts (1225) are fixedly connected to the side wall of the air outlet head (122). A plurality of metal knocking rods (1226) are fixedly connected to the side wall of the air blowing and bending pipe (121), and the plurality of metal knocking rods (1226) are respectively located between the plurality of vibrating parts (1225).

9. An air classifier for silica powder according to claim 8, characterized in that: The vibrating part (1225) includes a metal semi-cylinder (12251) installed on the air outlet head (122). A spring (12252) is fixedly connected to the side wall of the metal semi-cylinder (12251). One end of the spring (12252) is fixedly connected to a metal plate (12253). Two connecting rods (12254) are fixedly connected to the side wall of the metal semi-cylinder (12251). One end of each of the two connecting rods (12254) is fixedly connected to a metal ball (12255). The two metal balls (12255) are respectively located on the left and right sides of the metal plate (12253). A plurality of hollow vibrating balls (12256) are arranged in each of the two metal balls (12252).

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