Air and material distribution structure of V-shaped powder concentrator

Abstract

The utility model discloses a V-shaped powder concentrator wind and material distribution structure which comprises a material distribution box and an air inlet pipe, the air inlet pipe is arranged in the center of the top end of the material distribution box, powder outlet pipes are arranged at the positions, on the two sides of the air inlet pipe, of the top end of the material distribution box, and a supporting plate is arranged in the center of the interior of the material distribution box. A plurality of sets of scattering plates are arranged on the two sides of the supporting plate at equal intervals, movable shafts are arranged at the ends, close to the supporting plate, of the scattering plates, the scattering plates are movably connected with the supporting plate through the movable shafts, and a plurality of sets of triangular open holes are formed in the surfaces of the scattering plates at equal intervals; the triangular holes in every two adjacent groups of scattering plates are designed in a staggered manner, angle iron stop blocks are arranged on the surfaces of the scattering plates on one sides of the triangular holes, and grooves of the angle iron stop blocks face the triangles. According to the material distributing and powder selecting device, a multi-stream three-dimensional material curtain is achieved, material powder can be evenly selected conveniently, and the material distributing and powder selecting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fabric structure technology, specifically a V-type air-fabricating structure for a classifier. Background Technology

[0002] In the building materials and metallurgical industries, V-type air classifiers, due to their combined functions of material dispersing, drying, and grading, can be integrated with roller presses or vertical mills to form various grinding process systems, and are widely used in the building materials and cement industries. However, current V-type air classifiers also have some problems in use. For example, the dispersing plate cannot fully disperse the material, resulting in poor dispersing effect and the inability to form a uniformly dispersed material curtain. Some suitable particles enter the sorting zone but are not selected and fall to the coarse powder outlet, resulting in low sorting efficiency. The air classifier lacks a lower air inlet, and the air inlet and outlet shell sections lack wind speed adjustment devices. If the system parameters or material conditions change significantly, adjustments cannot be made, affecting the dispersing and grading effect of the air classifier. To improve this situation, a new air and material distribution structure for the V-type air classifier is proposed.

[0003] A V-type air classifier, as disclosed in authorization announcement number CN207478990U, includes an air classifier housing. An air inlet is located on one side of the housing, and an air outlet is located on the other side. An air distribution plate is located inside the housing near the air inlet. A grading plate is located inside the housing near the air outlet. A large particle powder outlet is located between the air distribution plate and the grading plate for large particles to pass through. A material distribution device is located above the large particle powder outlet inside the housing. The internal space of the housing has a "V"-shaped structure, with the upper part of the "V"-shaped structure connected to the material distribution device and the lower part connected to the large particle powder outlet.

[0004] Although this utility model of V-type classifier can obtain a uniform and continuous material curtain, it greatly improves the classification accuracy and classification efficiency of V-type classifier, reduces the energy loss of system circulating air caused by uneven material curtain, and plays a positive role in improving the overall efficiency of grinding system.

[0005] However, this does not solve the problem that the existing fabric structure is not conducive to multi-flow three-dimensional material precipitate and uniform material selection, thus affecting the efficiency of material selection in the fabric. Utility Model Content

[0006] The purpose of this invention is to provide a V-type air-closing and material-closing structure for a powder classifier, in order to solve the problem mentioned in the background art that the material-closing structure is not conducive to multi-stream three-dimensional material flow, which is not conducive to uniform material selection and affects the efficiency of powder selection.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a V-type air classifier air and material distribution structure, including a material distribution box and an air inlet pipe. An air inlet pipe is provided at the center of the top of the material distribution box, and powder outlet pipes are provided at the top of the material distribution box on both sides of the air inlet pipe. A support plate is provided at the center of the inside of the material distribution box. Multiple sets of dispersing plates are provided at equal intervals on both sides of the support plate. A movable shaft is provided at the end of each dispersing plate near the support plate, and the dispersing plate is movably connected to the support plate through the movable shaft. Multiple sets of triangular openings are provided at equal intervals on the surface of each dispersing plate, and the triangular openings on adjacent sets of dispersing plates are staggered. An angle iron block is provided on the surface of each dispersing plate on one side of the triangular opening, and the groove of the angle iron block faces the triangle.

[0008] Preferably, a sleeve is provided on the side wall of the support plate on one side of the dispersing plate, and the sleeve is movably connected to the support plate.

[0009] Preferably, each sleeve has a sliding rod inside, and the sliding rod is slidably connected to the sleeve.

[0010] Preferably, each sleeve has a locking pin on its side wall, and the locking pin extends through the sleeve to the surface of the slide rod, and the locking pin is threadedly connected to the sleeve.

[0011] Preferably, each of the slide rods is provided with a linkage shaft at the end near the dispersing plate, and the slide rod is movably connected to the dispersing plate through the linkage shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the fabric structure not only realizes multi-stream three-dimensional material flow, facilitating uniform material selection, but also improves the efficiency of material selection; by pouring the material powder into the fabric box through the air inlet pipe and connecting the air supply pipe to the air inlet pipe, air enters the fabric box from the air inlet pipe, and the airflow drives the material powder to move. The material powder follows the airflow and impacts the surface of the dispersing plate. Triangular openings are made at certain intervals in the middle section of the dispersing plate, and angle iron blocks are welded to the bottom edge of the triangular openings. The grooves of the angle iron blocks face the triangles to form a baffle plate, which blocks the material powder into the triangular holes. The triangular openings on the upper and lower dispersing plates are staggered, so that the material passing through the upper triangular opening falls into the unopened area of ​​the lower dispersing plate, thereby realizing multi-stream three-dimensional material flow from top to bottom of the dispersing plate, and fine material powder. Large particles of material are discharged through the powder outlet pipe. After passing through multiple layers of fabric, they sink to the bottom collection box. The collection box can be pulled out of the fabric box to remove the large particles of material. The angle between the dispersing plate and the support plate varies, and the airflow velocity generated by the airflow hitting the dispersing plate also varies. The higher the velocity, the worse the material selection effect. To ensure the material selection effect, the locking pin can be loosened to separate the slide rod from the sleeve. Moving the slide rod causes it to slide inside the sleeve and drive the sleeve to rotate. The slide rod drives the dispersing plate to rotate around the movable shaft through the linkage shaft, thereby adjusting the angle between the dispersing plate and the support plate. The dispersing plate can be adjusted in the same way as above, thereby adjusting the airflow speed to improve the material distribution effect. This achieves simultaneous material distribution of multiple airflows, which facilitates uniform material selection, expands the air classification space area, and improves the efficiency of material selection. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional perspective structural diagram of the fabric box of this utility model;

[0015] Figure 3 This is a front view cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a three-dimensional structural diagram of the disintegration plate and angle iron block of this utility model;

[0017] Figure 5 This is a three-dimensional magnified structural diagram of the sleeve of this utility model.

[0018] In the diagram: 1. Fabric box; 2. Powder outlet pipe; 3. Air inlet pipe; 4. Support plate; 5. Dispersing plate; 6. Angle iron stop block; 7. Triangular opening; 8. Movable shaft; 9. Sleeve; 10. Locking pin; 11. Slide rod; 12. Linkage shaft. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Please see Figure 1-5 The present invention provides an embodiment of a V-type classifier air and material distribution structure, including a material distribution box 1 and an air inlet pipe 3. The air inlet pipe 3 is provided at the center of the top of the material distribution box 1. The top of the material distribution box 1 on both sides of the air inlet pipe 3 is provided with powder outlet pipes 2. The center of the inside of the material distribution box 1 is provided with a support plate 4. Multiple sets of dispersing plates 5 are provided at equal intervals on both sides of the support plate 4. The end of the dispersing plate 5 near the support plate 4 is provided with a movable shaft 8, and the dispersing plate 5 is movably connected to the support plate 4 through the movable shaft 8. Multiple sets of triangular openings 7 are provided at equal intervals on the surface of the dispersing plate 5, and the triangular openings 7 on two adjacent sets of dispersing plates 5 are staggered. An angle iron block 6 is provided on the surface of the dispersing plate 5 on one side of the triangular opening 7, and the groove of the angle iron block 6 faces the triangle.

[0021] Sleeves 9 are provided on the side wall of the support plate 4 on one side of the disintegration plate 5, and the sleeves 9 are movably connected to the support plate 4.

[0022] Each sleeve 9 has a slide rod 11 inside, and the slide rod 11 is slidably connected to the sleeve 9. Each sleeve 9 has a locking pin 10 on its side wall, and the locking pin 10 extends through the sleeve 9 to the surface of the slide rod 11, and the locking pin 10 is threadedly connected to the sleeve 9.

[0023] Each slide rod 11 is provided with a linkage shaft 12 at one end near the dispersing plate 5, and the slide rod 11 is movably connected to the dispersing plate 5 through the linkage shaft 12;

[0024] The powder material is poured into the fabric box 1 through the air inlet pipe 3. The air supply pipe is connected to the air inlet pipe 3, and air enters the fabric box 1 through the air inlet pipe 3. The airflow carries the powder material, which then impacts the surface of the dispersing plate 5. Triangular openings 7 are made at certain intervals in the middle section of the dispersing plate 5, and angle iron blocks 6 are welded to the bottom edge of the triangular openings 7. The grooves of the angle iron blocks 6 face the triangles, forming a baffle plate that blocks the powder material into the triangular openings. The triangular openings 7 on the upper and lower layers of the dispersing plate 5 are staggered, so that the material passing through the upper triangular opening 7 falls into the unopened area of ​​the lower dispersing plate 5, thus realizing a multi-stream three-dimensional material flow from top to bottom. Fine powder is discharged through the powder outlet pipe 2, and large powder particles sink to the bottom collection box after passing through multiple layers of fabric. Large particles of material can be removed by pulling them out of the material box 1. The angle between the dispersing plate 5 and the support plate 4 is different, and the flow velocity generated by the airflow hitting the dispersing plate 5 is also different. The higher the flow velocity, the worse the material selection effect. In order to ensure the material selection effect, the locking pin 10 can be loosened to separate the slide rod 11 from the sleeve 9. Move the slide rod 11, and the slide rod 11 slides inside the sleeve 9 and drives the sleeve 9 to rotate. The slide rod 11 drives the dispersing plate 5 to rotate around the movable shaft 8 through the linkage shaft 12 to adjust the angle between the dispersing plate 5 and the support plate 4. Adjust the dispersing plate 5 in the same way to adjust the airflow speed and improve the material distribution effect. This realizes the simultaneous distribution of multiple airflows, which facilitates the uniform selection of material powder, expands the air selection space area, and improves the efficiency of material distribution and powder selection.

[0025] Working principle: The material powder is poured into the inside of the material distribution box 1 through the air inlet pipe 3. The air supply pipe is connected to the air inlet pipe 3, and the air enters the material distribution box 1 through the air inlet pipe 3. The airflow carries the material powder to move, and the material powder follows the airflow to impact the surface of the dispersing plate 5. Triangular openings 7 are made at certain intervals in the middle section of the dispersing plate 5, and angle iron blocks 6 are welded to the bottom edge of the triangular openings 7. The groove of the angle iron block 6 faces the triangle, forming a baffle plate, which blocks the material powder into the triangular cavity. The triangular openings 7 on the upper and lower layers of the dispersing plate 5 are staggered, so that the material passing through the upper triangular opening 7 falls into the unopened area of ​​the lower dispersing plate 5, thereby realizing a multi-stream three-dimensional material flow from top to bottom of the dispersing plate. Fine powder is discharged through the powder outlet pipe 2, and large particles are discharged through the powder outlet pipe 2. After passing through multiple layers of fabric, the powder settles into the bottom storage box. Large powder particles can be removed by pulling the storage box out of the fabric box 1. The angle between the dispersing plate 5 and the support plate 4 varies, resulting in different flow velocities when the airflow impacts the dispersing plate 5. A higher flow velocity leads to a poorer material selection effect. To ensure the selection effect, the locking pin 10 can be loosened to separate the sliding rod 11 from the sleeve 9. Moving the sliding rod 11 causes it to slide inside the sleeve 9 and rotate it. The sliding rod 11, through the linkage shaft 12, drives the dispersing plate 5 to rotate around the movable shaft 8, thus adjusting the angle between the dispersing plate 5 and the support plate 4. This process is repeated for each dispersing plate 5, thereby adjusting the airflow speed and improving the fabric selection effect.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A V-type air classifier air distribution and material distribution structure, comprising a material distribution box (1) and an air inlet pipe (3), characterized in that: An air inlet pipe (3) is provided at the center of the top of the fabric box (1). A powder outlet pipe (2) is provided at the top of the fabric box (1) on both sides of the air inlet pipe (3). A support plate (4) is provided at the center of the interior of the fabric box (1). Multiple sets of dispersing plates (5) with equal spacing are provided on both sides of the support plate (4). A movable shaft (8) is provided at the end of the dispersing plate (5) near the support plate (4). The dispersing plate (5) is movably connected to the support plate (4) through the movable shaft (8). Multiple sets of triangular openings (7) with equal spacing are provided on the surface of the dispersing plate (5). The triangular openings (7) on two adjacent sets of dispersing plates (5) are staggered. An angle iron block (6) is provided on the surface of the dispersing plate (5) on one side of the triangular opening (7). The groove of the angle iron block (6) faces the triangle.

2. The air distribution and fabric distribution structure of a V-type air classifier according to claim 1, characterized in that: Sleeves (9) are provided on the side wall of the support plate (4) on one side of the dispersing plate (5), and the sleeves (9) are movably connected to the support plate (4).

3. The air distribution and fabric distribution structure of a V-type air classifier according to claim 2, characterized in that: Each sleeve (9) is provided with a slide rod (11) inside, and the slide rod (11) is slidably connected to the sleeve (9).

4. The air distribution and fabric distribution structure of a V-type air classifier according to claim 2, characterized in that: Locking pins (10) are provided on the side walls of the sleeve (9), and the locking pins (10) extend through the sleeve (9) to the surface of the slide rod (11), and the locking pins (10) are threadedly connected to the sleeve (9).

5. The air distribution and fabric distribution structure of a V-type air classifier according to claim 3, characterized in that: Each slide rod (11) is provided with a linkage shaft (12) at one end near the dispersing plate (5), and the slide rod (11) is movably connected to the dispersing plate (5) through the linkage shaft (12).

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