An integrated material screening device for municipal engineering

Abstract

The present invention relates to an integrated material screening device for municipal engineering applied to the field of material screening, comprising an installation frame, both sides of one end of the installation frame are fixedly connected with fixed plates, two left rotating shafts are rotatably connected between the two fixed plates, and different types of screening requirements are integrated into the same device through a multi-mode screening function, thereby avoiding the need to purchase multiple devices, reducing equipment costs, and significantly reducing the demand for space. The device combines a rotary screening mode and a direct screening mode, and can adjust the screening mode according to the characteristics of the material. The rotary screening mode is suitable for large-particle materials that are moist or highly viscous. Although the screening efficiency is low, it can better handle coarse screening and wet materials. The direct screening mode is suitable for fine-particle, uniform and dry materials, has a high screening efficiency, and is particularly suitable for mass production. Through this mode switching, the applicability and processing efficiency of the equipment can be improved to meet the screening requirements under different working conditions.

Description

Technical Field

[0001] The invention relates to a screening device, in particular to an integrated material screening device used in the field of material screening and for municipal engineering. Background Art

[0002] A Chinese patent with publication number CN111266284B discloses a sand screening machine for construction machinery. By setting a rolling sand screener, the sand inside the screen cylinder is screened under the action of the rotation of the screen cylinder. A Chinese patent with publication number CN103331255A discloses a vibrating screen. When working, the screen is driven to shake by a vibrating motor to screen the material.

[0003] The above patent application is for two types of screening devices, namely a drum screen and a linear vibrating screen. The linear vibrating screen is suitable for materials with relatively uniform particles and little size difference, especially fine-grained materials. The drum vibrating screen is suitable for materials with irregular, large or high humidity particles.

[0004] Due to the large number of types of building materials, in order to better handle different materials, drum screens and linear vibrating screens are prepared at the same time, which increases equipment costs and occupies an area of ​​more space, so further improvement is needed. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that, in order to better process different materials, a drum screen and a linear vibrating screen are prepared at the same time, which leads to an increase in equipment cost and an increase in floor space.

[0006] To solve the above problems, the present invention provides an integrated material screening device for municipal engineering, comprising an installation frame, both sides of one end of the installation frame are fixedly connected with fixed plates, two left rotating shafts are rotatably connected between the two fixed plates, both sides of the other end of the installation frame are slidably connected with movable plates, two right rotating shafts are rotatably connected between the two movable plates, the two left rotating shafts and the two right rotating shafts are distributed in a rectangular shape, the outer walls of the left rotating shaft and the right rotating shaft are respectively fixedly connected with a left screen frame and a right screen frame, the inner walls of the left screen frame and the right screen frame are both fixedly connected with screen meshes, one end of the left screen frame away from the left rotating shaft and one end of the right screen frame away from the right rotating shaft are respectively fixedly connected with a rotating sleeve and an inner shaft, the rotating sleeve is rotatably connected with the inner shaft, the side wall of the fixed plate is fixedly connected with an adjusting motor, the output end of the adjusting motor is fixedly connected with a screw rod, the screw rod passes through the movable plate and is threadedly connected thereto, and both sides of the middle part of the installation frame are fixedly connected with an intermediate plate;

[0007] It also includes a base, the top of the base is fixedly connected to two support plates through a spring, the two support plates are respectively located on one side of the two middle plates, the middle of the support plate is rotatably connected to a connecting shaft, one end of the connecting shaft is fixedly connected to the side wall of the middle plate, an oscillator is fixedly connected between the bottom ends of the two support plates, the top of the base located on one side of one of the support plates is fixedly connected to a vertical plate, the side wall of the vertical plate is fixedly connected to a rotating motor and a vibration motor, the output end of the rotating motor and one end of the connecting shaft, the output end of the vibration motor and one end of the oscillator are fixedly connected by rubber strips;

[0008] It also includes a rotary screen mode. When the rotary screen mode is started, the adjusting motor is started to drive the screw rod to rotate forward. At this time, the moving plate moves toward the fixed plate, and a drum screen is formed between the two left screen frames and the two right screen frames. The rotary motor is started to drive the drum screen to rotate through the connecting shaft;

[0009] It also includes a direct screening mode. When the direct screening mode is started, the adjusting motor is started to drive the screw to reverse. At this time, the moving plate moves away from the fixed plate, and the two left screen frames and the two right screen frames form a two-layer flat screen. The vibration motor is started to drive the flat screen to vibrate through the oscillator.

[0010] As a further improvement of the present application, a cleaning mode is also included. When the rotary screening mode is used for screening and the screen is blocked, the cleaning mode is started, the rotary screening mode is switched to the straight screening mode, and the direct screening mode is operated for 1-10 minutes, and then switched to the rotary screening mode, which can automatically clean the holes in the screen.

[0011] As a further improvement of the present application, inner guard plates are fixedly connected between the two fixed plates and between the two moving plates. The two inner guard plates are respectively located between the two left rotating shafts and between the two right rotating shafts. Through the above arrangement, in the rotating screening mode, the material can be shielded to prevent it from leaking out.

[0012] As a further improvement of the present application, outer guard plates are fixedly connected between the two fixed plates and between the two movable plates. The two outer guard plates are respectively located on the upper side of the upper left rotating shaft and the upper side of the upper right rotating shaft. Through the above arrangement, in the straight screening mode, the material can be shielded to prevent it from leaking out.

[0013] As another improvement of the present application, a waste conveyor belt and a raw material conveyor belt are fixedly connected to the top of the base. The waste conveyor belt is located at the lower side of one end of the left screen frame and the right screen frame, and the raw material conveyor belt is located at the lower side of the left screen frame and the right screen frame. Through the above arrangement, the waste conveyor belt can convey the screened impurities, and the raw material conveyor belt can convey the screened materials.

[0014] As another improved supplement of the present application, the left screen frame and the right screen frame are arranged in an inclined shape, and one end of the left screen frame and the right screen frame close to the inner guard plate is lower than the other end.

[0015] As another improved supplement of the present application, the mounting frame is located on a side of the moving plate away from the fixed plate and is fixedly connected to the limiting strip.

[0016] In summary, the multi-mode screening function integrates different types of screening needs into the same device, avoiding the need to purchase multiple devices, reducing equipment costs, and significantly reducing space requirements.

[0017] The device combines the rotary screening mode and the direct screening mode, and can adjust the screening method according to the characteristics of the material. The rotary screening mode is suitable for large-particle materials that are moist or sticky. Although the screening efficiency is lower, it can better handle coarse screening and wet materials. The direct screening mode is suitable for fine-particle, uniform and dry materials. It has a higher screening efficiency and is particularly suitable for mass production. By switching this mode, the applicability and processing efficiency of the equipment can be improved to meet the screening needs under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the screen in the first and second embodiments of the present application;

[0019] Figure 2 This is a side view of the fixed plate and the movable plate in the first embodiment of the present application;

[0020] Figure 3 It is a side cross-sectional view of the left screen frame and the right screen frame in the rotating screen mode in the first and second embodiments of the present application;

[0021] Figure 4 It is a side cross-sectional view of the left screen frame and the right screen frame in the straight screen mode in the first and second embodiments of the present application;

[0022] Figure 5 It is a front cross-sectional view of the left screen frame and the right screen frame in the rotating screen mode in the first and second embodiments of the present application;

[0023] Figure 6 This is a front view of the installation frame in the first and second embodiments of the present application.

[0024] Description of the numbers in the figure:

[0025] 1. Mounting frame; 2. Fixed plate; 201. Left rotating shaft; 3. Moving plate; 301. Right rotating shaft; 4. Left screen frame; 5. Right screen frame; 6. Rotating sleeve; 7. Inner shaft; 8. Adjusting motor; 9. Screw; 10. Middle plate; 11. Base; 12. Spring; 13. Support plate; 1301. Connecting shaft; 14. Vertical plate; 15. Rotating motor; 16. Rubber strip; 17. Vibrating motor; 18. Oscillator; 19. Inner guard plate; 20. Outer guard plate; 21. Waste conveyor belt; 22. Raw material conveyor belt; 23. Limiting strip. DETAILED DESCRIPTION

[0026] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0027] The first implementation method:

[0028] Figure 1-6 An integrated material screening device for municipal engineering is shown, comprising a mounting frame 1, fixed plates 2 are fixedly connected to both sides of one end of the mounting frame 1, two left rotating shafts 201 are rotatably connected between the two fixed plates 2, and moving plates 3 are slidably connected to both sides of the other end of the mounting frame 1, two right rotating shafts 301 are rotatably connected between the two moving plates 3, the two left rotating shafts 201 and the two right rotating shafts 301 are distributed in a rectangular shape, and the outer walls of the left rotating shafts 201 and the right rotating shafts 301 are respectively fixedly connected to the left screen frame 4 and the right screen frame 5, the inner walls of the left screen frame 4 and the right screen frame 5 are fixedly connected with screens, one end of the left screen frame 4 away from the left rotating shaft 201 and the one end of the right screen frame 5 away from the right rotating shaft 301 are respectively fixedly connected with a rotating sleeve 6 and an inner shaft 7, the rotating sleeve 6 is rotatably connected to the inner shaft 7, the side wall of the fixed plate 2 is fixedly connected with an adjusting motor 8, the output end of the adjusting motor 8 is fixedly connected with a screw rod 9, the screw rod 9 penetrates the moving plate 3 and is threadedly connected thereto, and both sides of the middle of the mounting frame 1 are fixedly connected with intermediate plates 10;

[0029] It also includes a base 11, the top of the base 11 is fixedly connected to two support plates 13 through a spring 12, the two support plates 13 are respectively located on one side of the two middle plates 10, the middle of the support plate 13 is rotatably connected to a connecting shaft 1301, one end of the connecting shaft 1301 is fixedly connected to the side wall of the middle plate 10, an oscillator 18 is fixedly connected between the bottom ends of the two support plates 13, a vertical plate 14 is fixedly connected to the top of the base 11 located on one side of the support plates 13, a rotating motor 15 and a vibration motor 17 are fixedly connected to the side wall of the vertical plate 14, and the output end of the rotating motor 15 and one end of the connecting shaft 1301, and the output end of the vibration motor 17 and one end of the oscillator 18 are fixedly connected by a rubber strip 16;

[0030] It also includes a rotary screen mode. When the rotary screen mode is started, the adjusting motor 8 is started to drive the screw rod 9 to rotate forward. At this time, the movable plate 3 moves toward the fixed plate 2, and the two left screen frames 4 and the two right screen frames 5 form a drum screen. The rotating motor 15 is started to drive the drum screen to rotate through the connecting shaft 1301;

[0031] This mode is suitable for screening wet or sticky materials with large particles. The screening efficiency is low, but it is more advantageous when processing coarse screening and wet materials.

[0032] It also includes a direct screening mode. When the direct screening mode is started, the adjusting motor 8 is started to drive the screw 9 to reverse. At this time, the movable plate 3 moves away from the fixed plate 2, and the two left screen frames 4 and the two right screen frames 5 form a two-layer flat screen. The vibration motor 17 is started to drive the flat screen to vibrate through the oscillator 18;

[0033] This mode is suitable for screening fine-grained, uniform, and dry materials, with high screening efficiency, and is suitable for mass production;

[0034] The screen is set to a rubber screen and also includes a cleaning mode. When the rotary screen mode is used for screening and the screen is blocked, the cleaning mode is started, the rotary screen mode is switched to the direct screen mode, and the screen works for 1-10 minutes in the direct screen mode, and then switched to the rotary screen mode, which can automatically clean the holes of the screen.

[0035] The rubber screen can be vibrated in the straight screen mode, causing the mesh of the screen to change, allowing the material blocked in the mesh to escape from the screen, and the bouncing effect of the material will help clean the particles on the surface of the screen. This self-cleaning feature effectively avoids clogging of the screen holes.

[0036] The second implementation method:

[0037] Figure 1 and Figure 3-6 An integrated material screening device for municipal engineering is shown. Different from the first embodiment, inner guard plates 19 are fixedly connected between the two fixed plates 2 and between the two movable plates 3. The two inner guard plates 19 are respectively located between the two left rotating shafts 201 and between the two right rotating shafts 301. Through the above arrangement, in the rotating screening mode, the material can be shielded to prevent the material from leaking out.

[0038] Outer guard plates 20 are fixedly connected between the two fixed plates 2 and between the two movable plates 3. The two outer guard plates 20 are respectively located on the upper side of the upper left rotating shaft 201 and the upper side of the upper right rotating shaft 301. Through the above arrangement, in the straight screening mode, the material can be shielded to prevent the material from leaking out.

[0039] A waste conveyor belt 21 and a raw material conveyor belt 22 are fixedly connected to the top of the base 11. The waste conveyor belt 21 is located at the lower side of one end of the left screen frame 4 and the right screen frame 5, and the raw material conveyor belt 22 is located at the lower side of the left screen frame 4 and the right screen frame 5. Through the above arrangement, the waste conveyor belt 21 can convey the screened impurities, and the raw material conveyor belt 22 can convey the screened materials.

[0040] The left screen frame 4 and the right screen frame 5 are arranged in an inclined shape, and one end of the left screen frame 4 and the right screen frame 5 close to the waste conveyor belt 21 is lower than the other end.

[0041] The mounting frame 1 is located on a side of the movable plate 3 away from the fixed plate 2 and is fixedly connected to a limit strip 23. By setting the limit strip 23, the movable plate 3 moves to the farthest distance in the direction away from the fixed plate 2. When the left screen frame 4 and the right screen frame 5 form a flat screen, the angle between the left screen frame 4 and the right screen frame 5 is less than 180 degrees, and the screen is in a horizontal state. When it is switched to a drum screen and the movable plate 3 moves toward the fixed plate 2, the two left screen frames 4 and the two right screen frames 5 can bulge outwards when rotating to form a drum screen.

[0042] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An integrated material screening device for municipal engineering, comprising a mounting frame (1), characterized in that: Both sides of one end of the installation frame (1) are fixedly connected to fixed plates (2), and two left rotating shafts (201) are rotatably connected between the two fixed plates (2). Both sides of the other end of the installation frame (1) are slidably connected to movable plates (3), and two right rotating shafts (301) are rotatably connected between the two movable plates (3). The two left rotating shafts (201) and the two right rotating shafts (301) are distributed in a rectangular shape. The outer walls of the left rotating shaft (201) and the right rotating shaft (301) are respectively fixedly connected to a left screen frame (4) and a right screen frame (5). The left screen frame (4) and the right screen frame (5) are The inner wall of the fixed plate (5) is fixedly connected with a screen, one end of the left screen frame (4) away from the left rotating shaft (201) and one end of the right screen frame (5) away from the right rotating shaft (301) are respectively fixedly connected with a rotating sleeve (6) and an inner shaft (7), the rotating sleeve (6) is rotatably connected to the inner shaft (7), the side wall of the fixed plate (2) is fixedly connected with an adjusting motor (8), the output end of the adjusting motor (8) is fixedly connected with a screw rod (9), the screw rod (9) passes through the moving plate (3) and is threadedly connected thereto, and both sides of the middle part of the mounting frame (1) are fixedly connected with an intermediate plate (10); It also comprises a base (11), the top end of the base (11) being fixedly connected to two support plates (13) via a spring (12), the two support plates (13) being respectively located on one side of two middle plates (10), the middle part of the support plate (13) being rotatably connected to a connecting shaft (1301), one end of the connecting shaft (1301) being fixedly connected to a side wall of the middle plate (10), an oscillator (18) being fixedly connected between the bottom ends of the two support plates (13), the top end of the base (11) being located on one side of one of the support plates (13) being fixedly connected to a vertical plate (14), the side wall of the vertical plate (14) being fixedly connected to a rotating motor (15) and a vibration motor (17), the output end of the rotating motor (15) and one end of the connecting shaft (1301), and the output end of the vibration motor (17) and one end of the oscillator (18) being fixedly connected via a rubber strip (16); The invention also includes a rotary screen mode. When the rotary screen mode is started, the adjusting motor (8) is started to drive the screw rod (9) to rotate forward, at which time the moving plate (3) moves in the direction of the fixed plate (2), and a drum screen is formed between the two left screen frames (4) and the two right screen frames (5). The rotary motor (15) is started to drive the drum screen to rotate through the connecting shaft (1301); The invention also includes a direct screening mode. When the direct screening mode is started, the adjusting motor (8) is started to drive the screw rod (9) to reverse, and the movable plate (3) moves in a direction away from the fixed plate (2), and the two left screen frames (4) and the two right screen frames (5) form a two-layer flat screen. The vibration motor (17) is started to drive the flat screen to vibrate through the oscillator (18).

2. The integrated material screening device for municipal engineering according to claim 1, characterized in that: The screen is configured as a rubber screen and also includes a cleaning mode. When the rotary screen mode is used for screening and the screen is blocked, the cleaning mode is started, the rotary screen mode is switched to the straight screen mode, and the screen is operated for 1-10 minutes in the straight screen mode, and then switched to the rotary screen mode, which can automatically clean the holes in the screen.

3. The integrated material screening device for municipal engineering according to claim 1 is characterized in that: An inner guard plate (19) is fixedly connected between the two fixed plates (2) and between the two movable plates (3), and the two inner guard plates (19) are respectively located between the two left rotating shafts (201) and between the two right rotating shafts (301).

4. The integrated material screening device for municipal engineering according to claim 1 is characterized in that: An outer guard plate (20) is fixedly connected between the two fixed plates (2) and between the two movable plates (3), and the two outer guard plates (20) are respectively located on the upper side of the upper left rotating shaft (201) and the upper side of the upper right rotating shaft (301).

5. The integrated material screening device for municipal engineering according to claim 1 is characterized in that: A waste conveyor belt (21) and a raw material conveyor belt (22) are fixedly connected to the top end of the base (11); the waste conveyor belt (21) is located at the lower side of one end of the left screen frame (4) and the right screen frame (5); and the raw material conveyor belt (22) is located at the lower side of the left screen frame (4) and the right screen frame (5).

6. The integrated material screening device for municipal engineering according to claim 5, characterized in that: The left screen frame (4) and the right screen frame (5) are arranged in an inclined shape, and one end of the left screen frame (4) and the right screen frame (5) close to the waste conveyor belt (21) is lower than the other end.

7. The integrated material screening device for municipal engineering according to claim 1, characterized in that: The installation frame (1) is located on a side of the movable plate (3) away from the fixed plate (2) and is fixedly connected to the limiting strip (23).

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