Multilayer screening equipment for expanded perlite

Abstract

The multi-layer screening equipment comprises a screening box, a plurality of screening cylinders are evenly and obliquely installed on the screening box in the longitudinal direction, feeding ports are formed in the top ends of the screening cylinders, screening net plates are installed at the bottoms of the screening cylinders, and the screening net plates are arranged on the screening box. The diameters of meshes of the multiple screening net plates are reduced at a time from top to bottom, stirring mechanisms are installed on the multiple screening barrels correspondingly, discharging ports are formed in the side ends of the multiple screening barrels correspondingly, fixing bases are fixedly connected to the positions, located on the upper sides of the discharging ports, of the side ends of the multiple screening barrels correspondingly, and electric cylinders are installed on the fixing bases. And the bottom end of a telescopic rod of the electric cylinder is fixedly connected with a sealing plate used for sealing the discharging opening, large-particle expanded perlite on the multiple screening net plates can be conveniently discharged, and time is saved.

Description

Technical Field

[0001] This utility model relates to the field of expanded perlite screening technology, and more specifically, to a multi-layer screening device for expanded perlite. Background Technology

[0002] Expanded perlite is a natural acidic glassy volcanic lava non-metallic mineral, including perlite, resinstone, etc. Because its volume expands rapidly by 4-30 times under high-temperature conditions of 1000-1300℃, it is collectively referred to as expanded perlite. It can be used as a filter, catalyst, molecular sieve, and carrier for rubber, fertilizers, and pesticides. The production process of expanded perlite mainly involves processing the ore mined from the mine into mineral sand with a certain particle size distribution through mechanical crushing and expansion. The resulting material has different particle sizes, and the functions of materials with different particle sizes are also different, which requires separation of the material according to particle size.

[0003] A search revealed that Chinese utility model patent application number CN202222683238.1 discloses a multi-layer screening device for expanded perlite, comprising a box and multiple screens. The multiple screens divide the box into multiple cavities from top to bottom. A pair of transverse grooves are recessed on the left and right inner walls of the cavities. Each transverse groove is slidably connected to a bearing seat. A rotating shaft is rotatably connected between the two bearing seats. A rack is fixed on the inner wall of the cavity below each transverse groove. A gear that meshes with the rack is fixedly sleeved on the rotating shaft. Multiple elastic columns are fixed on the rotating shaft. An elastic ball is fixed to the end of the elastic column that is not connected to the rotating shaft. A moving rod parallel to the transverse groove is provided in the cavity. One end of the moving rod is rotatably sleeved on the rotating shaft. A vertical plate is provided outside the box. The end of the moving rod that is not sleeved on the rotating shaft extends through the box and out of the box. The vertical plate is horizontally connected to the outer wall of the box by a translation cylinder.

[0004] Because its multiple screens are all horizontally set, larger particles of expanded perlite will be intercepted on the upper side of the corresponding screens. The expanded perlite accumulates on the screens, making it difficult to clean out the larger particles of expanded perlite. The cleaning time is relatively long, resulting in low efficiency in screening expanded perlite. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a multi-layer screening device for expanded perlite, thereby solving the technical problem mentioned in the background art that it is inconvenient to clean out larger particles of expanded perlite from the screen, and the long cleaning time required leads to low screening efficiency of expanded perlite.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer screening device for expanded perlite, comprising a screening box, on which multiple screening cylinders are longitudinally and evenly inclinedly installed. Each screening cylinder has a feed inlet at its top and a screening mesh plate at its bottom. The mesh diameter of the screening mesh plates decreases sequentially from top to bottom. Each screening cylinder is equipped with a stirring mechanism. Each screening cylinder has a discharge port at its side end. A fixed base is fixedly connected to the side end of each screening cylinder above the discharge port. An electric cylinder is installed on the fixed base. A sealing plate is fixedly connected to the bottom end of the electric cylinder's telescopic rod for sealing the discharge port, facilitating the discharge of larger expanded perlite particles from the multiple screening mesh plates, saving time and improving the efficiency of expanded perlite screening.

[0009] The present invention is further configured such that two fixing rods are fixedly connected to the top of the sealing plate, and both fixing rods are slidably engaged with the fixing seat to ensure the stability of the sliding of the sealing plate.

[0010] The present invention is further configured such that the stirring mechanism includes a motor, the motor is mounted on the screening cylinder, the output shaft of the motor extends into the interior of the screening cylinder and is fixedly connected to a rotating shaft, and the outside of the rotating shaft is connected to multiple scraper plates that cooperate with the screening screen through multiple connecting plates, so as to scrape away the larger expanded perlite on the screening screen and avoid clogging of the screening screen.

[0011] The present invention is further configured such that two guide plates are fixedly connected to the upper side of each of the multiple screening cylinders inside the screening box, so as to facilitate the expansion perlite falling into the interior of the corresponding screening cylinder.

[0012] The present invention is further configured such that a plurality of guide hoppers are fixedly connected to the side end of the screening box, and the plurality of guide hoppers are respectively located below a plurality of discharge ports, so as to facilitate the transport of the expanded perlite discharged from the discharge ports to the corresponding positions, and to facilitate the separate collection of the various expanded perlite samples screened.

[0013] The present invention is further configured such that a guide seat is installed at the bottom of the screening box, and a discharge chute is provided on the guide seat to facilitate the discharge of the expanded perlite screened by the bottom screening screen.

[0014] The present invention is further configured such that a plurality of support legs are fixedly connected to the bottom end of the guide seat, and a support base is fixedly connected to the bottom end of each of the plurality of support legs, and a plurality of fixing holes are provided on each of the plurality of support bases to ensure the stability of the screening box.

[0015] The present invention is further configured such that a top cover is installed at the top of the screening cylinder, and a feeding pipe is connected to the top cover to facilitate the addition of expanded perlite to be screened into the screening box.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a multi-layer screening device for expanded perlite, which has the following beneficial effects:

[0018] 1. When it is necessary to clean the expanded perlite on multiple screening screens, the sealing plate is moved upward by the electric cylinder, exposing the bottom part of the discharge port. Since both the screening cylinder and the screening screens are inclined, the expanded perlite on the screening screens is discharged through the discharge port. At the same time, the expansion perlite screened inside the screening cylinder can be quickly discharged through the stirring mechanism, thereby reducing the cleaning time of the expanded perlite on the screening screens and improving the efficiency of screening expanded perlite.

[0019] 2. When screening expanded perlite, the sealing plate is moved downward by the electric cylinder to seal the outlet and prevent smaller expanded perlite particles from being discharged from the screen.

[0020] 3. A guide seat is installed at the bottom of the screening box. Multiple support legs are fixedly connected to the bottom of the guide seat. Each of the multiple support legs is fixedly connected to a support base. Multiple support bases are provided with multiple fixing holes, so that expansion bolts can pass through the fixing holes and fix the support bases firmly to the ground, thus ensuring the stability of the screening box when screening expanded perlite. Attached Figure Description

[0021] Figure 1 This is a front structural diagram of a multi-layer screening device for expanded perlite according to the present invention.

[0022] Figure 2 This is a structural diagram showing the combination of multiple screening cylinders, multiple fixed seats, multiple electric cylinders, and multiple sealing plates in this utility model.

[0023] Figure 3 This is a schematic diagram showing the connection between multiple screening cylinders and multiple stirring mechanisms in this utility model;

[0024] Figure 4 This is a schematic diagram of the connection between the guide seat, support leg, and support seat in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure in which the screening box is connected to multiple guide plates in this utility model.

[0026] In the diagram: 1. Screening box; 2. Screening cylinder; 3. Feed inlet; 4. Screening mesh; 5. Discharge outlet; 6. Fixed base; 7. Electric cylinder; 8. Sealing plate; 9. Fixed rod; 10. Motor; 11. Rotating shaft; 12. Connecting plate; 13. Scraper; 14. Guide plate; 15. Guide hopper; 16. Guide seat; 17. Discharge chute; 18. Support leg; 19. Support base; 20. Fixing hole; 21. Top cover; 22. Feeding pipe. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A multi-layer screening device for expanded perlite includes a screening box 1, a top cover 21 installed at the top of a screening cylinder 2, and a feeding pipe 22 connected to the top cover 21 to facilitate the addition of expanded perlite to be screened into the screening box 1. Multiple screening cylinders 2 are installed longitudinally and evenly at an incline on the screening box 1. Each screening cylinder 2 has a feed inlet 3 at its top. Two guide plates 14 are fixedly connected to the upper side of each screening cylinder 2 inside the screening box 1 to facilitate the expansion perlite falling into the corresponding screening cylinder 2. Screening devices are installed at the bottom of each screening cylinder 2. The mesh diameter of the multiple screening meshes 4 decreases from top to bottom. A stirring mechanism is installed on each of the multiple screening cylinders 2. A discharge port 5 is provided on the side end of each of the multiple screening cylinders 2. A fixed seat 6 is fixedly connected to the side end of each of the multiple screening cylinders 2 above the discharge port 5. An electric cylinder 7 is installed on the fixed seat 6. A sealing plate 8 for sealing the discharge port 5 is fixedly connected to the bottom end of the telescopic rod of the electric cylinder 7. Two fixed rods 9 are fixedly connected to the top end of the sealing plate 8. Both fixed rods 9 slide in cooperation with the fixed seat 6 to ensure the stability of the sliding of the sealing plate 8.

[0031] Specifically, when it is necessary to clean the expanded perlite on multiple screening screens 4, the electric cylinder 7 pulls the sealing plate 8 upward, exposing the bottom part of the discharge port 5. Since both the screening cylinder 2 and the screening screens 4 are inclined, the expanded perlite on the screening screens 4 is discharged through the discharge port 5. At the same time, with the cooperation of the stirring mechanism, the expanded perlite screened inside the screening cylinder 2 can be quickly discharged, thereby reducing the cleaning time of the expanded perlite on the screening screens 4 and improving the efficiency of screening the expanded perlite. When screening the expanded perlite, the electric cylinder 7 pushes the sealing plate 8 downward, so that the sealing plate 8 seals the discharge port 5, preventing smaller particles of expanded perlite on the screening screens 4 from being discharged from the discharge port 5.

[0032] Please see Figure 3 The stirring mechanism includes a motor 10, which is mounted on the screening cylinder 2. The output shaft of the motor 10 extends into the interior of the screening cylinder 2 and is fixedly connected to a rotating shaft 11. The outside of the rotating shaft 11 is connected to multiple scraper plates 13 that cooperate with the screening screen plate 4 through multiple connecting plates 12.

[0033] Specifically, the motor 10 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives multiple connecting plates 12 and multiple scraper plates 13 to rotate. The multiple scraper plates 13 facilitate the scraping away of larger particles of expanded perlite on the screening screen plate 4, thus preventing the larger particles of expanded perlite from clogging the mesh of the screening screen plate 4.

[0034] Please see Figure 1 Multiple guide hoppers 15 are fixedly connected to the side of the screening box 1, and the multiple guide hoppers 15 are located below the multiple discharge ports 5 respectively.

[0035] Specifically, the discharge ends of the multiple feed hoppers 15 are located at different positions, which makes it convenient to place the box for collecting expanded perlite particles of different diameters below the discharge end of the corresponding feed hopper 15, thus facilitating the collection of expanded perlite of different grades after screening.

[0036] Please see Figure 1 and Figure 4 The bottom of the screening box 1 is equipped with a guide seat 16, and the guide seat 16 is provided with a discharge chute 17 to facilitate the discharge of the expanded perlite screened by the bottom screening screen 4. The bottom of the guide seat 16 is fixedly connected with multiple support legs 18, and the bottom of each of the multiple support legs 18 is fixedly connected with a support base 19. Each of the multiple support bases 19 is provided with multiple fixing holes 20.

[0037] Specifically, a guide seat 16 is installed at the bottom of the screening box 1. Multiple support legs 18 are fixedly connected to the bottom of the guide seat 16. Support bases 19 are fixedly connected to the bottom of each support leg 18. Multiple fixing holes 20 are provided on each support base 19 to facilitate the expansion bolts to pass through the fixing holes 20 and fix the support base 19 firmly to the ground, thus ensuring the stability of the screening box 1 when screening expanded perlite.

[0038] In summary, during the layered screening of expanded perlite, the expanded perlite to be screened is added into the screening box 1 through the feeding pipe 22. The expanded perlite falls into the corresponding screening cylinder 2, and expanded perlite particles larger than the mesh diameter are screened out by the screening mesh 4. Smaller expanded perlite particles fall to the bottom through the mesh of the corresponding screening mesh 4. The expanded perlite is screened in multiple layers by multiple screening meshes 4. At the same time, the motor 10 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives multiple connecting plates 12 and multiple scraper plates 13 to rotate. The multiple scraper plates 13 facilitate the removal of larger particles on the screening meshes 4. Expanded perlite is scraped away to prevent larger particles from clogging the mesh of the screening screen 4. When it is necessary to clean the expanded perlite inside the screening cylinder 2, the sealing plate 8 is moved upward by the electric cylinder 7, exposing the bottom part of the discharge port 5. Since both the screening cylinder 2 and the screening screen 4 are inclined, the expanded perlite on the screening screen 4 is discharged through the discharge port 5 and discharged into the corresponding guide hopper 15. It is then discharged into the corresponding expanded perlite collection box through the guide hopper 15. Thus, the small expanded perlite falling from the mesh of the bottom screening screen 4 falls into the box below through the guide seat 16.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layer screening device for expanded perlite, comprising a screening box (1), characterized in that: Multiple screening cylinders (2) are installed longitudinally and evenly at an inclination. Each screening cylinder (2) has a feed inlet (3) at its top and a screening screen (4) at its bottom. The mesh diameter of the screening screen (4) decreases from top to bottom. Each screening cylinder (2) is equipped with a stirring mechanism. Each screening cylinder (2) has a discharge port (5) at its side. Each screening cylinder (2) has a fixed seat (6) fixedly connected to the side of the discharge port (5) above the side of the discharge port (5). An electric cylinder (7) is installed on the fixed seat (6). A sealing plate (8) for sealing the discharge port (5) is fixedly connected to the bottom of the telescopic rod of the electric cylinder (7).

2. The multi-layer screening device for expanded perlite according to claim 1, characterized in that: The top of the sealing plate (8) is fixedly connected to two fixing rods (9), and both fixing rods (9) are slidably engaged with the fixing seat (6).

3. The multi-layer screening device for expanded perlite according to claim 1, characterized in that: The stirring mechanism includes a motor (10), which is mounted on the screening cylinder (2). The output shaft of the motor (10) extends into the interior of the screening cylinder (2) and is fixedly connected to a rotating shaft (11). The outside of the rotating shaft (11) is connected to multiple scraper plates (13) that cooperate with the screening screen (4) through multiple connecting plates (12).

4. The multi-layer screening device for expanded perlite according to claim 1, characterized in that: The inside of the screening box (1) is fixedly connected to two guide plates (14) on the upper side of the multiple screening cylinders (2).

5. The multi-layer screening device for expanded perlite according to claim 1, characterized in that: The screening box (1) is fixedly connected to a plurality of guide hoppers (15), and the plurality of guide hoppers (15) are respectively located below a plurality of discharge ports (5).

6. The multi-layer screening device for expanded perlite according to claim 1, characterized in that: The bottom of the screening box (1) is equipped with a guide seat (16), and the guide seat (16) is provided with a discharge chute (17).

7. The multi-layer screening device for expanded perlite according to claim 6, characterized in that: The bottom end of the guide seat (16) is fixedly connected to a plurality of support legs (18), and the bottom end of each of the plurality of support legs (18) is fixedly connected to a support seat (19), and each of the plurality of support seats (19) is provided with a plurality of fixing holes (20).

8. The multi-layer screening device for expanded perlite according to claim 1, characterized in that: The top of the screening cylinder (2) is equipped with a top cover (21), and a feeding pipe (22) is connected to the top cover (21).

Images