A classification device for inorganic oxide miscible material powder
By combining buffering, powder blowing, and pulse backflushing components, the problems of uneven particle size and screen clogging caused by powder agglomeration are solved, achieving efficient classification and continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIUJIANG LINHUI ADVANCED MATERIALS CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-04
AI Technical Summary
Existing powder classification devices are prone to uneven particle size distribution due to powder agglomeration, resulting in poor classification effect. Furthermore, the screens are easily clogged, increasing downtime and cleaning time costs.
The system employs a buffer assembly, a powder blowing assembly, a pulse backflushing cleaning assembly, and a powder dispersing assembly. Through a vibrating motor, a blower, and a pulse jet control assembly, it achieves powder dispersion and screen clogging prevention, ensuring effective grading and continuous operation of the equipment.
It improves the accuracy of powder classification, reduces the risk of screen clogging, reduces downtime, and increases production efficiency.
Smart Images
Figure CN224586346U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of powder engineering technology, and in particular relates to a classification device for inorganic oxide mixed-phase material powder. Background Technology
[0002] Inorganic oxide mixed-phase material powders are particulate substances formed by mixing two or more different inorganic oxides, including metal oxides and non-metal oxides, under specific conditions. Due to their unique physical and chemical properties, these composite materials are widely used in various fields such as electronics, ceramics, catalysts, and battery materials. Different application areas have different requirements for powder particle size. Through classification technology, the particle size distribution of the powder can be precisely controlled, thereby meeting the technical specifications required for specific products.
[0003] However, in practical applications, ordinary powder classification devices are prone to agglomeration before classification due to the large specific surface area and surface energy of the powder itself. This agglomeration leads to a severely uneven particle size distribution, interfering with the classification operation and resulting in poor classification effect. It is difficult to meet the strict requirements of different application scenarios for powder particle size. In addition, agglomerated powder particles are prone to accumulate at the screen aperture, causing screen clogging. Once screen clogging occurs, the machine needs to be stopped for cleaning, resulting in production interruption and increasing production time costs.
[0004] Therefore, there is a particular need for a classification device for inorganic oxide mixed-phase material powders to solve the above problems. Utility Model Content
[0005] To overcome the shortcomings of ordinary powder classification devices, such as uneven particle size distribution and poor classification effect due to powder agglomeration, and easy clogging of screens requiring shutdown for cleaning, which increases time costs, this utility model provides a classification device for inorganic oxide mixed-phase material powders.
[0006] This utility model is achieved through the following technical means: A classification device for inorganic oxide mixed-phase material powders includes a buffer assembly, a working cylinder, a cover plate, a feed pipe, a powder dispersing assembly, a first discharge pipe, a second discharge pipe, a first screen, a second screen, a vibrating motor, a pulse backflushing cleaning assembly, a powder dispersion assembly, and a collecting assembly. The working cylinder is disposed on the upper part of the buffer assembly. The cover plate is rotatably disposed on the upper part of the working cylinder via a circular shaft at its rear, and completely covers the opening of the working cylinder from above. The feed pipe is fixedly connected to the center position of the cover plate and communicates with the internal space of the working cylinder through a circular hole opened at the center position of the cover plate. The powder dispersing assembly is disposed on the working cylinder, and the first discharge pipe is fixedly connected to the buffer assembly. The first discharge pipe is connected to the upper middle part of the working cylinder, with one end directly connected to the internal space of the working cylinder. The second discharge pipe, which has the same structure as the first discharge pipe, is fixed to the lower middle part of the working cylinder, with one end also directly connected to the internal space of the working cylinder. Both the first and second screens are fixed inside the working cylinder, with the first screen located above the second screen, forming a layered structure in terms of spatial layout. The inclination angles of the two screens are set in opposite directions. The aperture of the first screen is larger than that of the second screen. The vibrating motor is installed in the lower inner part of the working cylinder. The pulse backflushing cleaning component is set between the working cylinder and the second discharge pipe. The powder dispersion component is set inside the working cylinder. The collecting component is placed at the bottom of the working cylinder.
[0007] In one embodiment, the buffer assembly includes legs, telescopic rods, springs, mounting bases, and insert rods. Two T-shaped legs are arranged side by side, forming the basic support of the entire device. Each telescopic rod consists of a fixed end and a sliding end. The fixed end is fixed to the top of each leg, and each mounting base is fixed to the sliding end of each telescopic rod. The sliding end of the telescopic rod forms a sliding fit with the leg in the vertical direction. The working cylinder is rotatably fitted with the two mounting bases and is constrained between the two mounting bases by two square plates arranged side by side. Each spring is sleeved on the outside of the sliding end of each telescopic rod, and its two ends are fixedly connected to the fixed end of the corresponding telescopic rod and the corresponding mounting base, respectively. Each insert rod is slidably inserted into the upper part of each mounting base, and its lower end is engaged with the square plate of the working cylinder.
[0008] In one embodiment, the powder dispersing assembly includes an exhaust pipe, an intercepting net, a fan, a protective net, and an air inlet pipe. The exhaust pipe is installed on the upper part of the working cylinder, with one end directly connected to the internal space of the working cylinder. The intercepting net is fixed inside the exhaust pipe, and its aperture is smaller than that of the second screen. The fan is installed in the lower part of the working cylinder and located above the vibrating motor. The protective net is fixed to the top of the fan. The air inlet pipe is fixed to the lower part of the working cylinder, with one end directly connected to the internal space of the working cylinder.
[0009] In one embodiment, the pulse jet control assembly includes an air tank, an air outlet pipe, and a pulse solenoid valve. Two air tanks are fixed to the top of the second discharge pipe by support plates at their left and right ends. Each air tank stores compressed air. Multiple air outlet pipes are distributed in two rows at equal intervals. Each air outlet pipe is fixed to the front of each air tank and directly connects to the internal space of the air tank. One end of each air outlet pipe extends through the working cylinder into its interior and is located above the first screen or the second screen. Each pulse solenoid valve is installed at the other end of each air outlet pipe.
[0010] In one embodiment, the powder dispersion assembly includes an inclined plate, a feeding frame, and a drive motor. The inclined plate is fixed to the upper inner part of the working cylinder and has a C-shaped opening at its rear. The drive motor is installed at the bottom end of the inclined plate, with its output shaft facing upwards and rotating in cooperation with the inclined plate. The feeding frame is fixed to the output shaft of the drive motor and is aligned vertically with the feed pipe. The feeding frame is located above the inclined plate and forms a tight contact with the bottom end of the cover plate. The outer periphery of the feeding frame has a plurality of evenly distributed discharge ports.
[0011] In one embodiment, the collecting assembly includes a wheelbarrow, a baffle, and wheels. The wheelbarrow is placed between two legs and below the working cylinder, with the lower end of the working cylinder extending into the interior of the wheelbarrow. The baffle is rotatably disposed at the rear of the wheelbarrow, and multiple wheels are distributed along a rectangular path and installed at the bottom of the wheelbarrow.
[0012] Beneficial effects: 1. Through the cooperation of the feeding frame and the drive motor in the powder dispersion component, the centrifugal force generated by the feeding frame when rotating at high speed can quickly disperse the agglomerated powder, so that it enters the subsequent classification process in a more dispersed particle state, thereby improving the classification effect, avoiding the problem of inaccurate classification caused by powder agglomeration, and reducing the risk of clogging of the first screen and the second screen.
[0013] By using the blower in the powder dispersing component, the high-speed airflow generated by the blower can further enhance the dispersibility of powder particles, making the powder particles more evenly distributed on the screen, improving the screening efficiency, and ensuring that powder particles of different sizes can be separated more accurately.
[0014] Through the coordinated action of the air tank, pulse solenoid valve and air outlet pipe in the pulse jet control component, when powder particles tend to accumulate on the first or second screen, the accumulated powder particles can be blown away in time, so that the powder particles can be discharged from the first or second discharge pipe, effectively preventing the first or second screen from clogging, ensuring the continuous and stable operation of the device, and reducing downtime caused by cleaning the first or second screen.
[0015] 2. By setting up a hopper in the collection component, smaller powder particles can be collected in a concentrated manner, which facilitates subsequent processing. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a partial sectional view of the working cylinder, feed pipe, and exhaust pipe of this utility model.
[0018] Figure 3 This is a three-dimensional structural diagram of the inclined plate, the first screen, and the second screen of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the gas tank, pulse solenoid valve, and gas outlet pipe components of this utility model.
[0020] Figure 5 This is a three-dimensional structural diagram of the inclined plate, the material spreading frame, and the drive motor components of this utility model.
[0021] Figure 6 This is a three-dimensional structural diagram of the wheelbarrow, baffle, and moving wheel components of this utility model.
[0022] In the attached diagram, the following are the reference numerals: 1. Support leg; 2. Telescopic rod; 3. Spring; 4. Mounting base; 5. Insert rod; 6. Working cylinder; 61. Cover plate; 62. Feed pipe; 7. Exhaust pipe; 71. Interception net; 8. First discharge pipe; 81. Second discharge pipe; 9. Inclined plate; 10. First screen; 101. Second screen; 11. Fan; 111. Protective net; 12. Air inlet pipe; 13. Vibrating motor; 14. Air tank; 15. Pulse solenoid valve; 16. Air outlet pipe; 17. Spreading frame; 18. Drive motor; 19. Wheelbarrow; 192. Moving wheel. Detailed Implementation
[0023] Example: A classification device for inorganic oxide mixed-phase material powder, such as Figures 1-6As shown, the assembly includes a buffer assembly, a working cylinder 6, a cover plate 61, a feed pipe 62, a powder dispersing assembly, a first discharge pipe 8, a second discharge pipe 81, a first screen 10, a second screen 101, a vibrating motor 13, a pulse backflushing cleaning assembly, a powder dispersion assembly, and a collection assembly. The working cylinder 6 is positioned above the buffer assembly. The cover plate 61 is rotatably mounted on the upper part of the working cylinder 6 via a circular shaft at its rear, completely covering the opening of the working cylinder 6 from above. The feed pipe 62 is welded to the center of the cover plate 61 and passes through... A circular hole at the center of the cover plate 61 connects to the internal space of the working cylinder 6. A powder dispersing assembly is mounted on the working cylinder 6. A first discharge pipe 8 is welded to the upper front side of the working cylinder 6, with its rear end directly connected to the internal space of the working cylinder 6. A second discharge pipe 81, with the same structure as the first discharge pipe 8, is welded to the lower rear side of the working cylinder 6, with its front end also directly connected to the internal space of the working cylinder 6. Both the first screen 10 and the second screen 101 are welded inside the working cylinder 6. The first screen 10 is located... Above the second screen 101, a layered structure is formed in the spatial layout, with the two screens tilted at opposite angles. The first screen 10 extends from low at the front to high at the back, tilting upwards and backwards, while the second screen 101 extends from low at the back to high at the front, tilting upwards and forwards. The aperture of the first screen 10 is larger than that of the second screen 101. The highest point of the lower inclined surface of the first discharge pipe 8 is at the same height as the highest point of the front end of the first screen 10, so that large particles sliding down from the front end of the first screen 10 are prevented from falling. Small-diameter powder particles can smoothly enter the first discharge pipe 8. The highest point of the lower inclined surface of the second discharge pipe 81 is at the same height as the highest point of the rear end of the second screen 101, so that small-diameter powder particles sliding down from the front end of the second screen 101 can smoothly enter the second discharge pipe 81. The vibration motor 13 is bolted to the lower part of the working cylinder 6. The pulse back-flushing cleaning component is set between the working cylinder 6 and the second discharge pipe 81. The powder dispersion component is set inside the working cylinder 6. The collection component is placed below the working cylinder 6.
[0024] like Figures 1-3As shown, the buffer assembly includes support legs 1, telescopic rods 2, springs 3, mounting bases 4, and insertion rods 5. Two T-shaped support legs 1 are arranged side-by-side, forming the basic support structure of the entire device. Each telescopic rod 2 consists of a fixed end and a sliding end. The fixed end is welded to the top of each support leg 1, and each mounting base 4 is welded to the sliding end of each telescopic rod 2. The sliding end of the telescopic rod 2 forms a sliding fit with the vertical support leg 1. The working cylinder 6 rotates with the two mounting bases 4 and is constrained between the two mounting bases 4 by two side-by-side square plates, preventing the working cylinder 6 from... The two mounting seats 4 are detached, and each spring 3 is sleeved on the outside of the sliding end of each telescopic rod 2. Its two ends are fixedly connected to the fixed end of the corresponding telescopic rod 2 and the corresponding mounting seat 4, respectively. When the vibration motor 13 runs and the working cylinder 6 drives the mounting seat 4 to vibrate, the mounting seat 4 causes the spring 3 to deform and absorb the vibration energy by driving the telescopic rod 2 to extend and retract, thereby protecting the entire device from damage caused by excessive vibration. Each insertion rod 5 is slidably inserted into the outward side of the upper part of each mounting seat 4, and its lower end is engaged with the square plate of the working cylinder 6, so that the working cylinder 6 is locked between the two mounting seats 4.
[0025] like Figures 1-3 As shown, the powder dispersing assembly includes an exhaust pipe 7, an intercepting net 71, a blower 11, a protective net 111, and an air inlet pipe 12. The exhaust pipe 7 is bolted to the upper front side of the working cylinder 6, and its rear end is directly connected to the internal space of the working cylinder 6. The intercepting net 71 is welded to the inside of the exhaust pipe 7, and its aperture is smaller than that of the second screen 101 to prevent powder particles from being discharged from the exhaust pipe 7 with the airflow during the grading process. The blower 11 is bolted to the lower inner part of the working cylinder 6 and is located above the vibrating motor 13. The protective net 111 is welded to the top of the blower 11. The air inlet pipe 12 is welded to the lower right side of the working cylinder 6, and its left end is directly connected to the internal space of the working cylinder 6.
[0026] like Figure 1 , Figure 3 and Figure 4 As shown, the pulse jet control assembly includes an air tank 14, an air outlet pipe 16, and a pulse solenoid valve 15. Two air tanks 14 are welded to the top of the second discharge pipe 81 via support plates at their left and right ends. Each air tank 14 stores compressed air. Fourteen air outlet pipes 16 are distributed in two rows at equal intervals. Each air outlet pipe 16 is welded to the front of each air tank 14 and directly connects to the internal space of the air tank 14. The front end of each air outlet pipe 16 extends through the working cylinder 6 into its interior and is located above the first screen 10 or the second screen 101 (meaning there is an air outlet pipe 16 above each of the first screen 10 and the second screen 101). Each pulse solenoid valve 15 is bolted to the rear end of each air outlet pipe 16.
[0027] like Figure 2 , Figure 3 and Figure 5 As shown, the powder dispersion assembly includes an inclined plate 9, a feeding frame 17, and a drive motor 18. The inclined plate 9 is welded to the upper inner part of the working cylinder 6, and a C-shaped opening is provided at its rear. The drive motor 18 is bolted to the bottom end of the inclined plate 9, with its output shaft facing upwards and connected to the inclined plate 9 by a rotatable engagement. The feeding frame 17 is connected to the output shaft of the drive motor 18 by a key connection and is aligned vertically with the feed pipe 62 to ensure that the powder entering from the feed pipe 62 can fall directly and smoothly into the feeding frame 17. The feeding frame 17 is located above the inclined plate 9 and forms a tight contact with the bottom end of the cover plate 61. This tight contact can prevent powder leakage during the feeding process and can reduce the residue of powder between the feeding frame 17 and the cover plate 61 to a certain extent. The outer periphery of the feeding frame 17 has four evenly distributed discharge ports, so that the powder inside the feeding frame 17 can be discharged from different directions through these four discharge ports.
[0028] like Figure 1 and Figure 6 As shown, the collecting assembly includes a wheelbarrow 19, a baffle 191, and casters 192. The wheelbarrow 19 is placed between two support legs 1 and below the working cylinder 6, with the lower end of the working cylinder 6 extending into the interior of the wheelbarrow 19. An n-shaped handle is provided on the upper front side of the wheelbarrow 19, which facilitates pulling the wheelbarrow 19. The baffle 191 is rotatably located at the rear of the wheelbarrow 19. Four casters 192 are distributed along a rectangular direction and are bolted to the four corners of the bottom of the wheelbarrow 19, which facilitates easy and labor-saving movement of the wheelbarrow 19.
[0029] When this device is needed to classify powder, the operator first connects the powder feeding pipe to the feed pipe 62 tightly, ensuring there is no leakage at the connection. After the connection is completed, the powder to be classified is fed into the inside of the spreading frame 17 through the feed pipe 62. At this time, the vibration motor 13, drive motor 18 and fan 11 are started. After the drive motor 18 runs, its output shaft drives the spreading frame 17 to rotate at high speed. The centrifugal force generated by the high-speed rotation of the spreading frame 17 will quickly break up the agglomerated powder, so that the powder is spread out from the spreading frame 17 in a more dispersed particle state. The spread powder particles first contact the inclined plate 9 and then move along the inclined surface of the inclined plate 9 from the rear C-shaped... The powder slides down onto the first screen 10 for sieving. At the same time, the vibrating motor 13 drives the working cylinder 6 to vibrate regularly, thereby accelerating the dispersion and movement of powder particles on the first screen 10 and preventing the powder particles from accumulating on the first screen 10. Meanwhile, the blower 11 operates to draw in external gas through the air inlet pipe 12 and blows the gas forcefully into the working cylinder 6, so that a stable airflow is generated inside the working cylinder 6. This airflow can further blow the powder particles, making them fall more dispersed onto the first screen 10. As more and more gas is blown in, the excess gas is discharged from the exhaust pipe 7, maintaining the stability and balance of the airflow inside the working cylinder 6.
[0030] During the grading process, large-diameter powder particles are intercepted by the aperture of the first screen 10 and remain on the first screen 10, while small-diameter powder particles pass smoothly through the first screen 10 and continue to fall onto the second screen 101. As time goes by, the amount of powder particles accumulated on the first screen 10 and the second screen 101 gradually increases and slides down the inclined surfaces of the first screen 10 and the second screen 101, respectively, and is discharged from the first discharge pipe 8 and the second discharge pipe 81 into the prepared collection container, thereby realizing the collection of powder particles of different diameters. At the same time, some smaller-diameter powder particles continue to fall through the protective net 111 and the fan 11 and are caught by the wheelbarrow 19 for centralized collection.
[0031] During the grading process, the operator must closely monitor the working status of the first screen 10 and the second screen 101. Once the powder particles show a tendency to accumulate on the first screen 10 or the second screen 101, the corresponding row of pulse solenoid valves 15 should be opened immediately to open the corresponding row of exhaust pipes 16. After the exhaust pipes 16 are opened, the compressed air in the corresponding air tank 14 is guided to the first screen 10 or the second screen 101 through the exhaust pipes 16 to realize the blowing operation, blow away the powder particles accumulated on the first screen 10 or the second screen 101, and discharge the powder particles from the first discharge pipe 8 or the second discharge pipe 81 to prevent the first screen 10 or the second screen 101 from clogging.
[0032] After grading is completed, the operator turns off the vibration motor 13, drive motor 18 and fan 11, and then pulls the wheelbarrow 19 forward to offset the working cylinder 6. During this process, the baffle 191 is squeezed by the lower end of the working cylinder 6 and rotates counterclockwise, allowing the wheelbarrow 19 to smoothly offset the working cylinder 6. After offsetting the working cylinder 6, the baffle 191 rotates clockwise under its own gravity to return to the initial position.
[0033] When it is necessary to clean the working cylinder 6, the operator pulls out the insert rod 5 upwards to release the locking state of the working cylinder 6. Then, the working cylinder 6 is rotated counterclockwise to make it at a suitable tilt angle to facilitate cleaning the inside. Next, the cover plate 61 is rotated clockwise to open the working cylinder 6 and the inside of the working cylinder 6 is thoroughly cleaned. After cleaning, the working cylinder 6 is rotated clockwise to restore it to its initial vertical angle. Finally, the cover plate 61 is rotated counterclockwise to close the working cylinder 6, and the insert rod 5 is inserted downwards to lock the working cylinder 6 again.
Claims
1. An apparatus for classifying a powder of an inorganic oxide miscible material, characterized by: The system includes a buffer assembly, a working cylinder (6), a cover plate (61), a feed pipe (62), a powder dispersing assembly, a first discharge pipe (8), a second discharge pipe (81), a first screen (10), a second screen (101), a vibrating motor (13), a pulse backflushing cleaning assembly, a powder dispersion assembly, and a collection assembly. The working cylinder (6) is located on top of the buffer assembly. The cover plate (61) is rotatably mounted on top of the working cylinder (6) via a circular shaft at its rear, completely covering the opening of the working cylinder (6) from above. The feed pipe (62) is fixed to the center of the cover plate (61) and connects to the internal space of the working cylinder (6) through a circular hole at the center of the cover plate (61). The powder dispersing assembly is mounted on the working cylinder (6). The first discharge pipe (8) is fixed to the upper middle part of the working cylinder (6), with one end connected to the working cylinder (6). The internal space of the 6) is directly connected. The second discharge pipe (81), which has the same structure as the first discharge pipe (8), is fixed in the middle and lower part of the working cylinder (6). One end of the second discharge pipe (8) is also directly connected to the internal space of the working cylinder (6). The first screen (10) and the second screen (101) are both fixed inside the working cylinder (6). The first screen (10) is located above the second screen (101), forming a layered structure in the spatial layout. The inclination angles of the two are set in opposite directions. The aperture of the first screen (10) is larger than that of the second screen (101). The vibration motor (13) is installed in the lower part of the working cylinder (6). The pulse back-blowing cleaning component is set between the working cylinder (6) and the second discharge pipe (81). The powder dispersion component is set inside the working cylinder (6). The collection component is placed below the working cylinder (6).
2. A classification device for inorganic oxide miscible material powder according to claim 1, characterized in that: The buffer assembly includes a support leg (1), a telescopic rod (2), a spring (3), a mounting base (4), and a plug rod (5). The two support legs (1) of the T-shaped structure are arranged side by side, forming the basic support part of the entire device. Each telescopic rod (2) consists of a fixed end and a sliding end. Its fixed end is fixed to the top of each support leg (1). Each mounting base (4) is fixed to the sliding end of each telescopic rod (2) and forms a sliding fit with the support leg (1) in the vertical direction through the sliding end of the telescopic rod (2). The working cylinder (6) is rotatably fitted with the two mounting bases (4) and is restricted between the two mounting bases (4) by two square plates arranged side by side. Each spring (3) is sleeved on the outside of the sliding end of each telescopic rod (2), and its two ends are fixedly connected to the fixed end of the corresponding telescopic rod (2) and the corresponding mounting base (4) respectively. Each plug rod (5) is slidably inserted into the upper part of each mounting base (4), and its lower end is engaged with the square plate of the working cylinder (6).
3. An apparatus for classifying inorganic oxide intimate mixture powder as claimed in claim 2, wherein: The powder blowing assembly includes an exhaust pipe (7), an intercepting net (71), a fan (11), a protective net (111), and an air inlet pipe (12). The exhaust pipe (7) is installed on the upper part of the working cylinder (6), and one end of it is directly connected to the internal space of the working cylinder (6). The intercepting net (71) is fixed inside the exhaust pipe (7), and its aperture is smaller than that of the second screen (101). The fan (11) is installed in the lower part of the working cylinder (6) and is located above the vibrating motor (13). The protective net (111) is fixed to the top of the fan (11). The air inlet pipe (12) is fixed to the lower part of the working cylinder (6), and one end of it is directly connected to the internal space of the working cylinder (6).
4. A classification device for inorganic oxide miscible material powder according to claim 3, characterized in that: The pulse jet control assembly includes an air tank (14), an air outlet pipe (16), and a pulse solenoid valve (15). Two air tanks (14) are fixed to the top of the second discharge pipe (81) by support plates at their left and right ends. Each air tank (14) stores compressed air. Multiple air outlet pipes (16) are distributed in two rows at equal intervals. Each air outlet pipe (16) is fixed to the front of each air tank (14) and directly connects to the internal space of the air tank (14). One end of each air outlet pipe (16) extends through the working cylinder (6) into its interior and is located above the first screen (10) or the second screen (101). Each pulse solenoid valve (15) is installed at the other end of each air outlet pipe (16).
5. An apparatus for classifying inorganic oxide intimate mixture material powder according to claim 4, characterized in that: The powder dispersion assembly includes an inclined plate (9), a feeding frame (17), and a drive motor (18). The inclined plate (9) is fixed to the upper inner part of the working cylinder (6), and a C-shaped opening is provided at its rear. The drive motor (18) is installed at the bottom end of the inclined plate (9), with its output shaft facing upwards and rotating in cooperation with the inclined plate (9). The feeding frame (17) is fixed to the output shaft of the drive motor (18) and is aligned vertically with the feed pipe (62). The feeding frame (17) is located above the inclined plate (9) and forms a tight contact with the bottom end of the cover plate (61). Multiple evenly distributed discharge ports are provided on the outer periphery of the feeding frame (17).
6. An apparatus for classifying inorganic oxide intimate mixture powder as claimed in claim 5, wherein: The collection assembly includes a wheelbarrow (19), a baffle (191), and wheels (192). The wheelbarrow (19) is placed between two legs (1) and below the working cylinder (6), with the lower end of the working cylinder (6) extending into the interior of the wheelbarrow (19). The baffle (191) is rotatably mounted at the rear of the wheelbarrow (19). Multiple wheels (192) are distributed along a rectangular path and installed at the bottom of the wheelbarrow (19).