Blocking device of drum screen

Abstract

The utility model discloses a blocking device of a drum screen. The blocking device of the drum screen comprises a lower blocking plate, two side sealing plates, a rear baffle and an upper connecting plate. The lower blocking plate is an arc panel and is arranged on the outer side of the drum screen in parallel; the upper ends of the two side sealing plates are vertically and fixedly connected with the two sides of the upper connecting plate and the lower ends are vertically and fixedly connected with the two sides of the lower blocking plate; the upper end of the rear baffle is connected below the outer wall of the upper connecting plate, and the lower end of the rear baffle is connected with the upper wall of the lower blocking plate; the upper connecting plate and the roller screen are concentrically attached and connected to the outer wall of the roller screen, separation holes are evenly distributed in the upper connecting plate, the separation holes and screen holes of the roller screen are oppositely formed in the vertical direction, and the lower blocking plate, the two side sealing plates, the rear baffle and the upper connecting plate surround one another to form a blocking shell. The vibrating screen has the advantages that materials can be smoothly separated through the screen, the screening effect is good, and the sorting efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of bagged garbage sorting, in particular to a blocking device for a drum screen. Background Art

[0002] With the rapid development of urbanization, there are more and more decoration waste and domestic waste. People usually pack them up and have them recycled by garbage trucks of urban public departments.

[0003] Due to the environmental, safety and health disadvantages of manual garbage handling, bagged garbage has begun to adopt mechanized processing production lines, such as drum screens. The current working principle of the drum screen is: the garbage enters the rotating drum from the feed port, the bag breaking knife passively cuts the bag, and the garbage is roughly sorted through the screen. Its defects are: 2D materials such as strips and films mixed in the garbage are easy to get stuck in the screen, affecting the screening efficiency. At the same time, the screen needs to be frequently cleaned and maintained, affecting the sorting speed; and the material is stuck in the screen for a long time, which is easy to damage the screen, resulting in frequent replacement of the screen. Utility Model Content

[0004] In order to solve one or more of the above problems, the utility model provides a blocking device for a drum screen.

[0005] According to one aspect of the utility model, the blocking device of the drum screen comprises: a lower blocking plate, two side sealing plates, a rear baffle plate and an upper connecting plate;

[0006] The lower blocking plate is an arc panel, the lower blocking plate and the drum screen are arranged concentrically, the inner wall radius of the lower blocking plate is larger than the outer wall radius of the drum screen, and the lower blocking plate is arranged parallel to the outer side of the drum screen;

[0007] The two side sealing plates are symmetrically arranged radial annular plates, the upper ends of which are vertically fixedly connected to the two sides of the upper connecting plate and the lower ends of which are vertically fixedly connected to the two sides of the lower blocking plate;

[0008] The upper end of the rear baffle is connected to the lower outer wall of the upper connecting plate and the lower end is connected to the upper wall of the lower blocking plate, and the two ends of the front side of the rear baffle are connected to the rear end of the side sealing plate;

[0009] The upper connecting plate is an arc panel. The upper connecting plate and the drum screen are concentrically arranged. The inner wall radius of the upper connecting plate is equal to the outer wall radius of the drum screen. The upper connecting plate is connected to the outer wall of the drum screen. Separation holes are evenly distributed on the upper connecting plate. The separation holes and the screen holes of the drum screen are arranged opposite to each other up and down.

[0010] The lower baffle plate, two side sealing plates, the rear baffle plate and the upper connecting plate surround each other to form an obstruction shell. A lateral opening is provided on one side of the annular cavity of the obstruction shell. The lateral opening faces the rotation direction of the drum screen. The 2D material and the coarse and fine material enter the annular cavity from the screen holes through the separation holes. The coarse and fine material falls through the lateral opening to the lower discharge port for discharge. When the lower baffle plate rotates to above the drum screen, the 2D material falls back to the drum screen and is discharged from the other port of the drum screen.

[0011] In some embodiments, the lower blocking plate and the rear baffle are an integrally bent structure, and the lower blocking plate includes an arc substrate, and the rear end of the arc substrate is bent upward to form the rear baffle.

[0012] In some embodiments, the upper end of the rear baffle is bent again to form a first wing plate, the first wing plate is provided with a plurality of first through holes at equal intervals, the upper connecting plate is provided with a plurality of first threaded holes at equal intervals, and the threaded member passes through the first through hole and is screwed into the first threaded hole, thereby realizing a threaded detachable fixed connection between the rear baffle and the upper connecting plate.

[0013] In some embodiments, a first bent inclined plate is further provided at the rear end of the arc base plate and the lower end of the rear baffle.

[0014] In some embodiments, a right-angled deceleration step is further provided at the front end of the arc substrate.

[0015] In some embodiments, the lower ends of the two side sealing plates are welded and fixedly connected to the lower blocking plate, and the upper ends of the two side sealing plates are welded and fixedly connected to the upper connecting plate.

[0016] In some embodiments, a second wing plate with a right-angle bend is further provided at the upper end of the side sealing plate, the second wing plate is provided with a second through hole, and the upper connecting plate is provided with a second threaded through hole. The threaded member passes through the second through hole and is screwed into the second threaded through hole, thereby realizing a threaded detachable fixed connection between the side sealing plate and the upper connecting plate.

[0017] In some embodiments, the diameter of the separation pores is larger than the diameter of the sieve pores.

[0018] In some embodiments, a plurality of positioning posts are provided on the upper end of the upper connecting plate, and the positioning posts are plugged into the drum screen.

[0019] In some embodiments, the upper connecting plate and the outer wall of the drum screen are fixed by welding or detachably connected by threads.

[0020] The device is provided with an intercepting and separating mechanism, and 2D materials and strip materials are intercepted by the lower intercepting plate, and only a small part of them can be drawn out of the drum screen. When they are rotated to the upper end, the 2D materials and strip materials automatically fall off due to gravity, preventing the screen from being blocked. The beneficial effects are: first, the screen can smoothly separate materials, with good screening effect and high sorting efficiency, while reducing the maintenance speed of the screen and avoiding the replacement caused by frequent damage of the screen; second, the structure is simple, organically combined with the drum screen and the inner cavity of the shell, does not occupy extra space, can be used in the direct transformation of the original equipment, greatly reducing the cost of equipment transformation, and effectively utilizing resources to avoid the waste of public resources caused by reinvestment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a blocking device of a drum screen according to one embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic front view of a blocking device of a drum screen is shown;

[0023] Figure 3 for Figure 1 A three-dimensional schematic diagram of the lower arresting plate shown;

[0024] Figure 4 for Figure 1 A schematic front view of a drum screen in which a blocking device and a drum screen are connected;

[0025] Figure 5 for Figure 4 A partial cross-sectional schematic diagram of a blocking device of a drum screen having a positioning column is shown;

[0026] Lower blocking plate 1, arc base plate 10, deceleration step 11; side sealing plate 2;

[0027] The rear baffle 3, the first wing plate 31, the first through hole 32, the first bending inclined plate 33;

[0028] Upper connecting plate 4, separation hole 41, first threaded hole 42; positioning column 5;

[0029] Drum screen 01, screen hole 010; blocking shell 02, annular cavity 020, lateral opening 021. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0031] Figures 1 to 5 A blocking device of a drum screen according to an embodiment of the utility model is schematically shown.

[0032] As shown in the figure, the blocking device of the drum screen includes: a lower blocking plate 1, two side sealing plates 2, a rear baffle plate 3 and an upper connecting plate 4;

[0033] The lower blocking plate 1 is an arc panel. The lower blocking plate 1 and the drum screen 01 are arranged concentrically. The inner wall radius of the lower blocking plate 1 is greater than the outer wall radius of the drum screen 01. The lower blocking plate 1 is arranged parallel to the outer side of the drum screen 01.

[0034] The two side sealing plates 2 are symmetrically arranged radial annular plates, the upper ends of the two side sealing plates 2 are vertically fixedly connected to the two sides of the upper connecting plate 4, and the lower ends thereof are vertically fixedly connected to the two sides of the lower blocking plate 1;

[0035] The upper end of the rear baffle plate 3 is connected to the lower outer wall of the upper connecting plate 4 and the lower end is connected to the upper wall of the lower blocking plate 1. The two ends of the front side of the rear baffle plate 3 are connected to the rear end of the side sealing plate 2;

[0036] The upper connecting plate 4 is an arc panel. The upper connecting plate 4 and the drum screen 01 are concentrically arranged and the inner wall radius of the upper connecting plate 4 is equal to the outer wall radius of the drum screen 01. The upper connecting plate 4 is connected to the outer wall of the drum screen 01. Separation holes 41 are evenly distributed on the upper connecting plate 4. The separation holes 41 and the screen holes 010 of the drum screen 01 are arranged opposite to each other up and down.

[0037] The lower baffle plate 1, two side sealing plates 2, the rear baffle plate 3 and the upper connecting plate 4 surround each other to form a baffle shell 02. A lateral opening 021 is provided on one side of the annular cavity 020 of the baffle shell 02. The lateral opening 021 faces the rotation direction of the drum screen 01. The 2D material and the coarse and fine material enter the annular cavity 020 from the sieve hole 010 through the separation hole 41. The coarse and fine material falls to the lower discharge port through the lateral opening 021 and is discharged. When the lower baffle plate 1 rotates to above the drum screen 01, the 2D material falls back to the drum screen 01 and is discharged from the other port of the drum screen 01.

[0038] The device is provided with an intercepting and separating mechanism, and 2D materials and strip materials are intercepted by the lower intercepting plate 1, and only a small part of them can be drawn out of the drum screen 01. When they are rotated to the upper end, the 2D materials and strip materials automatically fall off due to gravity, preventing the screen from being blocked. The beneficial effects are: first, the screen can smoothly separate materials, with good screening effect and high sorting efficiency, while reducing the maintenance speed of the screen and avoiding the replacement caused by frequent damage of the screen; second, the structure is simple, organically combined with the drum screen 01 and the inner cavity of the shell, does not occupy extra space, and can be used in the direct transformation of the original equipment, which greatly reduces the cost of equipment transformation, while effectively utilizing resources and avoiding the waste of public resources caused by reinvestment.

[0039] Preferably, the lower blocking plate 1 and the rear baffle 3 are an integrally bent structure, wherein the lower blocking plate 1 comprises an arc base plate 10, and the rear end of the arc base plate 10 is bent upward to form the rear baffle 3. The beneficial effects are: the integrally bent structure is easy to process and manufacture, and has high overall strength.

[0040] Preferably, the upper end of the rear baffle 3 is bent again to form a first wing plate 31, the first wing plate 31 is provided with a plurality of first through holes 32 at equal intervals, the upper connecting plate 4 is provided with a plurality of first threaded holes 42 at equal intervals, and the threaded member passes through the first through holes 32 and is screwed into the first threaded holes 42, thereby realizing the threaded detachable fixed connection between the rear baffle 3 and the upper connecting plate 4. The beneficial effect is that the detachable connection of the arrangement has high connection strength and is easy to install.

[0041] Preferably, the rear end of the arc base plate 10 and the lower end of the rear baffle plate 3 are further provided with a first bending inclined plate 33. The beneficial effect is that the first bending inclined plate 33 makes the two parts bend twice, reduces the bending handover, and avoids stress cracks caused by large-angle bending.

[0042] Preferably, a right-angled deceleration step 11 is further provided at the front end of the arc base plate 10. The beneficial effect is that the deceleration step 11 can reduce the material discharge speed, change the material movement direction, and play a certain guiding role.

[0043] Preferably, the lower end points of the two side sealing plates 2 are welded and fixedly connected to the lower blocking plate 1, and the upper end points are welded and fixedly connected to the upper connecting plate 4. The beneficial effect is that spot welding not only ensures a firm connection, but also avoids the deformation of components caused by full welding.

[0044] Preferably, the upper end of the side sealing plate 2 is further provided with a second wing plate bent at a right angle, the second wing plate is provided with a second through hole, the upper connecting plate 4 is provided with a second threaded through hole, and the threaded member passes through the second through hole and is screwed into the second threaded through hole, thereby realizing the threaded detachable fixed connection between the side sealing plate 2 and the upper connecting plate 4. The beneficial effect is that this setting ensures the overall detachable connection and facilitates the replacement of components.

[0045] Preferably, the diameter of the separation hole 41 is larger than the diameter of the sieve hole 010. The beneficial effect is that the material flow can be ensured without blockage.

[0046] Preferably, a plurality of positioning posts 5 are further provided at the upper end of the upper connecting plate 4, and the positioning posts 5 are plugged into the drum screen 01. The beneficial effect is that the positioning posts 5 can ensure the installation accuracy of the components and realize rapid assembly.

[0047] Preferably, the upper connecting plate 4 and the outer wall of the drum screen 01 are welded or threaded for detachable connection. The beneficial effect is that the connection strength is high and the processing and manufacturing are convenient.

[0048] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A blocking device for a drum screen, characterized in that: It comprises: a lower blocking plate (1), two side sealing plates (2), a rear baffle plate (3) and an upper connecting plate (4); The lower blocking plate (1) is an arc panel, the lower blocking plate (1) and the drum screen (01) are arranged concentrically, the inner wall radius of the lower blocking plate (1) is greater than the outer wall radius of the drum screen (01), and the lower blocking plate (1) is arranged parallel to the outer side of the drum screen (01); The two side sealing plates (2) are symmetrically arranged radial annular plates, the upper ends of the two side sealing plates (2) are vertically fixedly connected to the two sides of the upper connecting plate (4) and the lower ends are vertically fixedly connected to the two sides of the lower blocking plate (1); The upper end of the rear baffle (3) is connected to the lower outer wall of the upper connecting plate (4) and the lower end is connected to the upper wall of the lower blocking plate (1); the two ends of the front side surface of the rear baffle (3) are connected to the rear end of the side sealing plate (2); The upper connecting plate (4) is an arc panel. The upper connecting plate (4) and the drum screen (01) are concentrically arranged and the inner wall radius of the upper connecting plate (4) is equal to the outer wall radius of the drum screen (01). The upper connecting plate (4) is connected to the outer wall of the drum screen (01). Separation holes (41) are evenly distributed on the upper connecting plate (4). The separation holes (41) and the screen holes (010) of the drum screen (01) are arranged opposite to each other in the upper and lower directions. The lower baffle plate (1), the two side sealing plates (2), the rear baffle plate (3) and the upper connecting plate (4) surround each other to form a baffle shell (02); a lateral opening (021) is provided on one side of the annular cavity (020) of the baffle shell (02); the lateral opening (021) faces the rotation direction of the drum screen (01); 2D materials and coarse and fine materials enter the annular cavity (020) from the sieve holes (010) through the separation holes (41); the coarse and fine materials fall through the lateral opening (021) to the lower discharge port and are discharged; when the lower baffle plate (1) rotates to above the drum screen (01), the 2D materials fall back to the drum screen (01) and are discharged from another port of the drum screen (01).

2. The blocking device of the drum screen according to claim 1, characterized in that: The lower blocking plate (1) and the rear baffle plate (3) are an integrally bent structure; the lower blocking plate (1) comprises an arc base plate (10); the rear end of the arc base plate (10) is bent upward to form the rear baffle plate (3).

3. The blocking device of the drum screen according to claim 2, characterized in that: The upper end of the rear baffle (3) is bent again to form a first wing plate (31), the first wing plate (31) is provided with a plurality of first through holes (32) at equal intervals, the upper connecting plate (4) is provided with a plurality of first threaded holes (42) at equal intervals, and a threaded member passes through the first through hole (32) and is screwed into the first threaded hole (42), thereby realizing a threaded detachable fixed connection between the rear baffle (3) and the upper connecting plate (4).

4. The blocking device of the drum screen according to claim 2, characterized in that: A first bent inclined plate (33) is also provided at the rear end of the arc base plate (10) and the lower end of the rear baffle plate (3).

5. The blocking device of the drum screen according to claim 2, characterized in that: The front end of the arc base plate (10) is also provided with a right-angled deceleration step (11).

6. The blocking device of a drum screen according to claim 1, characterized in that: The lower ends of the two side sealing plates (2) are welded and fixedly connected to the lower blocking plate (1), and the upper ends are welded and fixedly connected to the upper connecting plate (4).

7. The blocking device of a drum screen according to claim 1, characterized in that: The upper end of the side sealing plate (2) is also provided with a second wing plate bent at a right angle, the second wing plate is provided with a second through hole, the upper connecting plate (4) is provided with a second threaded through hole, and the threaded member passes through the second through hole and is screwed into the second threaded through hole, thereby realizing a threaded detachable fixed connection between the side sealing plate (2) and the upper connecting plate (4).

8. The blocking device of a drum screen according to claim 1, characterized in that: The diameter of the separation hole (41) is greater than the diameter of the sieve hole (010).

9. The blocking device of a drum screen according to claim 1, characterized in that: A plurality of positioning posts (5) are also provided at the upper end of the upper connecting plate (4), and the positioning posts (5) are plugged into the drum screen (01).

10. The blocking device of a drum screen according to claim 1, characterized in that: The upper connecting plate (4) and the outer wall of the drum screen (01) are fixed by welding or detachably connected by threads.

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