Silica sand feeding flow adjusting device

Abstract

The utility model belongs to silica sand processing equipment technical field, concretely speaking, the utility model relates to a kind of silica sand feeding flow regulating device;A kind of silica sand feeding flow regulating device is set on vibrating screen, including shell and feeding structure, the vibrating screen is arranged in shell, the feeding structure is set above vibrating screen, and flow regulating structure is arranged on vibrating screen;The distance of its and vibrating screen can be flexibly adjusted by the threaded hole on baffle plate: when distance reduces, the cross-sectional area of silica sand through baffle plate becomes small, the speed of silica sand through baffle plate becomes slow, the contact time of silica sand and vibrating screen is extended, contact area increases, and screening fineness and efficiency are significantly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of silica sand processing equipment. Specifically, this utility model relates to a silica sand feeding and flow rate adjustment device. Background Technology

[0002] After dehydration in the homogenization silage, the silica sand is unloaded by a rake and fed into a collection belt conveyor. It is then transported to a wet sand vibrating screen for screening and impurity removal, and then conveyed by a belt conveyor to the top floor of the raw material workshop warehouse. From there, it is fed into a feeding silo via a rotary belt conveyor for storage and weighing. However, in actual use, due to factors such as the silica sand supply cycle and its own moisture content, wet silica sand used in situations with insufficient inventory and short dehydration cycles tends to accumulate locally after entering the wet sand vibrating screen due to its high moisture content and poor fluidity. This results in a small coverage area and a significantly reduced amount passing through the screen under the action of the vibrating motor.

[0003] Chinese patent (publication number: 222512632U) discloses a quartz sand feeding device that can avoid pipe blockage, including a support frame. A guide trough is provided on one side of the support frame, and the lower end of the guide trough is connected to a material conveying component. Four first fixed plates arranged in a matrix are provided at the upper end of the guide trough. A movable rod is inserted into the middle of the first fixed plate, and the upper part of the movable rod is fixedly connected to a second fixed plate. A spring is sleeved between the first and second fixed plates on the movable rod. A feeding trough is provided in the middle of the four second fixed plates. A first mounting plate is provided on the side of the feeding trough away from the support frame, and a vibrating motor is fixedly mounted on the first mounting plate. A filter screen is provided at the lower end of the feeding trough. However, this quartz sand feeding device that can avoid pipe blockage has poor screening effect. Utility Model Content

[0004] This utility model is designed to solve the above-mentioned problems and aims to provide a silica sand feeding flow regulating device that can improve the screening effect of impurities and reduce the clogging of the vibrating screen. To achieve the above objective, the technical solution adopted by this utility model is as follows: a silica sand feeding flow regulating device, which is installed on a vibrating screen, includes a housing and a feeding structure. The vibrating screen is installed inside the housing, the feeding structure is installed above the vibrating screen, and a flow regulating structure is provided on the vibrating screen.

[0005] The flow regulation structure includes a fixed pipe, which is disposed inside the housing, and a baffle plate is movably connected to the fixed pipe.

[0006] The feeding structure includes a feeding pipe, which is connected to a conveyor belt chute, and the conveyor belt chute is located directly above the vibrating screen.

[0007] A material level sensor is installed on the feeding pipe, and the material level sensor is connected to a PLC controller, which is connected to the motor of the conveyor belt chute.

[0008] A pad is provided between the fixed tube and the shell, and a first reinforcing plate is provided between the pad and the fixed tube.

[0009] The baffle plate has threaded holes at equal intervals, and the fixed tube has threaded holes at equal intervals. The baffle plate is bolted to the fixed tube.

[0010] The feed pipe has a trapezoidal cross-section, and the shell has a square structure.

[0011] A second reinforcing plate is provided between the feeding pipe and the conveyor belt chute.

[0012] The baffle plate is a one-piece molded structure of polyethylene polymer.

[0013] The technical advantages of this invention are as follows: The feeding pipe receives silica sand and centrally transports it to the conveyor belt chute; the conveyor belt chute guides the silica sand to the vibrating screen and pushes it to both sides. The distance between the baffle plate and the vibrating screen can be flexibly adjusted through the threaded holes on the baffle plate: when the distance decreases, the cross-sectional area of ​​the silica sand passing through the baffle plate becomes smaller, the speed of the silica sand passing through the baffle plate slows down, the contact time between the silica sand and the vibrating screen is extended, and the contact area is increased, significantly improving the screening fineness and efficiency. The baffle plate adopts a one-piece molded structure of polyethylene polymer, which, due to its wear resistance and corrosion resistance, can work stably for a long time, reducing the frequency of replacement, and its smooth surface can reduce the flow resistance of the silica sand.

[0014] When the moisture content of the silica sand is too high, it is difficult for the silica sand to pass through the vibrating screen. It accumulates on the vibrating screen from bottom to top, causing blockage in the conveyor belt chute. When the accumulated silica sand triggers the material level sensor, the conveyor belt chute automatically stops running and stops conveying silica sand. After the staff clears the blockage, the conveyor belt can be used again. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following: Figure 1 This is an overall structural diagram of a silica sand feeding and flow rate regulating device according to this utility model; Figure 2 This is an isometric drawing of a silica sand feeding and flow rate regulating device according to this utility model.

[0016] The following are marked in the diagram: 1. Vibrating screen; 2. Shell; 3. Feeding structure; 301. Feeding pipe; 302. Conveyor belt chute; 4. Flow regulation structure; 401. Fixed pipe; 402. Baffle plate; 5. Material level sensor; 6. Pad plate; 7. First reinforcing plate; 8. Second reinforcing plate. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0018] like Figures 1-2 As shown, a silica sand feeding and flow regulation device is installed on a vibrating screen 1, including a housing 2 and a feeding structure 3. The vibrating screen 1 is installed inside the housing 2, and the feeding structure 3 is installed above the vibrating screen 1. A flow regulation structure 4 is installed on the vibrating screen 1. The vibrating screen 1 is installed inside the housing 2 and is mainly used to screen out impurities in the quartz silica sand before it is transported to the top floor of the raw material workshop silo by a belt conveyor. The feeding structure 3 is located directly above the vibrating screen 1 and is responsible for conveying the silica sand to the vibrating screen 1 for processing. The vibrating screen 1 is also equipped with a flow regulation structure 4, which adjusts the contact area between the silica sand and the vibrating screen 1. The housing 2 provides installation support and protection for all internal components, reducing spillage and external interference during the silica sand conveying process.

[0019] The flow regulation structure 4 includes a fixed pipe 401, which is a steel pipe and is installed inside the housing 2. A baffle plate 402 is movably connected to the fixed pipe 401. The fixed pipe 401 provides the mounting base for the baffle plate 402. The baffle plate 402 is movably connected to the fixed pipe 401. By adjusting the baffle plate 402, the distance between the baffle plate 402 and the vibrating screen 1 can be changed. After the silica sand is conveyed to the vibrating screen 1 by the feeding structure 3, it will be forcibly pushed to both ends. By changing the distance between the baffle plate 402 and the vibrating screen 1, when the distance between the baffle plate 402 and the vibrating screen 1 is reduced, the cross-sectional area of ​​the silica sand passing through the baffle plate 402 becomes smaller, changing the flow rate of the silica sand passing through the baffle plate 402. The contact time between the silica sand and the mesh of the vibrating screen 1 becomes longer, and the contact area increases, thereby improving the fineness and efficiency of screening. The feeding structure 3 includes a feeding pipe 301, which is connected to a conveyor belt chute 302 located directly above the vibrating screen 1. The feeding pipe 301 receives external silica sand, while the conveyor belt chute 302 transports the silica sand from the feeding pipe 301 to the vibrating screen 1 and pushes the silica sand to both sides, reducing clogging of the vibrating screen and improving screening efficiency.

[0020] A level sensor 5 is installed on the feeding pipe 301, and the level sensor 5 is connected to a PLC controller, which in turn is connected to the motor of the conveyor belt chute 302. The level sensor 5 monitors the silica sand level in the feeding pipe 301 in real time. When the silica sand has excessive moisture, it cannot easily pass through the vibrating screen 1 and accumulates from bottom to top on the vibrating screen 1, causing a blockage in the conveyor belt chute 302. The accumulated silica sand triggers the level sensor 5, and the conveyor belt chute 302 automatically stops operating, stopping the conveying of silica sand. After the blockage is cleared, the conveyor belt chute can resume operation.

[0021] A pad 6 is provided between the fixed tube 401 and the housing 2, and a first reinforcing plate 7 is provided between the pad 6 and the fixed tube 401. The pad 6 is welded to the housing 2 and is located between the fixed tube 401 and the housing 2 to avoid direct contact between the fixed tube 401 and the housing 2, prevent scratches between the fixed tube 401 and the housing 2, and extend the service life of the fixed tube 401 and the housing 2. The first reinforcing plate 7 is welded to the pad 6 and the fixed tube 401 to enhance the connection strength between the fixed tube 401 and the pad 6.

[0022] The baffle plate 402 has threaded holes at equal intervals, and the fixing pipe 401 has threaded holes at equal intervals. The baffle plate 402 and the fixing pipe 401 are bolted together. By setting rows of threaded holes on the baffle plate 402, after adjusting the baffle plate 402 and the vibrating screen 1, the baffle plate 402 is fixed to the fixing pipe 401 with bolts.

[0023] The feed pipe 301 has a trapezoidal cross-section, while the housing 2 has a square structure. The trapezoidal cross-section of the feed pipe 301 provides a larger opening area at the feed end, allowing for smoother reception of externally transported silica sand and reducing accumulation and blockage at the inlet. Simultaneously, the trapezoidal structure gradually narrows from the feed end to the end connecting to the conveyor belt chute 302. This gradual shape guides the silica sand towards the conveying direction, ensuring a more concentrated and orderly flow as it enters the conveyor belt chute 302, preventing dispersion. The housing 2 is a square frame composed of four plates, used to house the vibrating screen 1 and other components.

[0024] A second reinforcing plate 8 is provided between the feeding pipe 301 and the conveyor belt chute 302. The second reinforcing plate 8 can strengthen the connection between the feeding pipe 301 and the conveyor belt chute 302.

[0025] The baffle plate 402 is a one-piece molded structure made of polyethylene polymer. Polyethylene polymer itself has excellent wear resistance. When silica sand passes through the baffle plate 402, it generates continuous friction with the baffle plate. This material effectively resists wear, significantly extending the service life of the baffle plate 402 and reducing replacement frequency. Simultaneously, this material has good corrosion resistance; trace corrosive components that may be present in the silica sand or moisture in the environment are unlikely to cause erosion, ensuring that the baffle plate 402 maintains a stable structure and performance over the long term.

[0026] The role and effect of the embodiments

[0027] Feed pipe 301 receives silica sand and centrally conveys it to conveyor belt chute 302. Conveyor belt chute 302 guides the silica sand to vibrating screen 1 and pushes it to both sides. The distance between the baffle plate 402 and the vibrating screen 1 can be flexibly adjusted through the threaded holes on the baffle plate 402: when the distance decreases, the cross-sectional area of ​​the silica sand passing through the baffle plate 402 becomes smaller, the speed of the silica sand passing through the baffle plate 402 decreases, the contact time between the silica sand and the vibrating screen 1 is extended, and the contact area increases, significantly improving the screening fineness and efficiency. The baffle plate 402 adopts a one-piece molded structure of polyethylene polymer. With its wear resistance and corrosion resistance, it can work stably for a long time, reducing the frequency of replacement, and its smooth surface can reduce the flow resistance of silica sand.

[0028] When the moisture content of the silica sand is too high, it is difficult for the silica sand to pass through the vibrating screen 1. It accumulates on the vibrating screen 1 from bottom to top, causing blockage in the conveyor belt chute 302. When the accumulated silica sand triggers the material level sensor 5, the conveyor belt chute 302 automatically stops running and stops conveying silica sand. After the staff clears the blockage, it can be used again.

[0029] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A silica sand feeding and flow rate regulating device, installed on a vibrating screen (1), characterized in that, Includes a housing (2) and a feeding structure (3), the vibrating screen (1) is disposed inside the housing (2), the feeding structure (3) is disposed above the vibrating screen (1), and the vibrating screen (1) is provided with a flow regulating structure (4). The flow regulation structure (4) includes a fixed tube (401), which is disposed inside the housing (2), and a baffle plate (402) is movably connected to the fixed tube (401). The feeding structure (3) includes a feeding pipe (301), which is connected to a conveyor belt chute (302), and the conveyor belt chute (302) is located directly above the vibrating screen (1); A material level sensor (5) is installed on the feeding pipe (301), and the material level sensor (5) is connected to a PLC controller, which is connected to the motor of the conveyor belt chute (302).

2. The silica sand feeding and flow rate regulating device according to claim 1, characterized in that: A pad (6) is provided between the fixed tube (401) and the shell (2), and a first reinforcing plate (7) is provided between the pad (6) and the fixed tube (401).

3. The silica sand feeding and flow rate regulating device according to claim 1, characterized in that: The baffle plate (402) has threaded holes at equal intervals, and the fixed tube (401) has threaded holes at equal intervals. The baffle plate (402) and the fixed tube (401) are bolted together.

4. The silica sand feeding and flow rate regulating device according to claim 1, characterized in that: The feed pipe (301) has a trapezoidal cross-section, and the shell (2) has a square structure.

5. The silica sand feeding and flow rate regulating device according to claim 1, characterized in that: A second reinforcing plate (8) is provided between the feeding pipe (301) and the conveyor belt chute (302).

6. The silica sand feeding and flow rate regulating device according to claim 1, characterized in that: The baffle plate (402) is a one-piece molded structure of polyethylene polymer.

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