Anti-blocking type bio-organic fertilizer drum grading screen

Abstract

The utility model relates to biological organic fertilizer production technical field discloses anti -blocking type biological organic fertilizer drum classifying screen, including the casing, casing inner wall left and right sides all are fixedly connected with the baffle, casing inner wall left and right sides all are rotatively connected with the rotating rod, casing inner wall rotatively connected with the drum screen, the drum screen is connected with the rotating rod through the rotating subassembly, the right end of casing outer wall rear side is installed with the motor, motor drive end is connected with right side bottom rotating rod, the drum screen inner wall rear end is connected with the drum brush through the transmission assembly, the drum brush front end is rotatively connected with casing inner wall front side. In the utility model, through the linkage structure inside drum screen realizes the synchronous rotation of drum brush and drum screen, carries out real -time cleaning to the screen hole. The clogging under the brush falls back to the material and is screened again, avoids the cumbersome of traditional drum screen and improves production efficiency obviously.

Description

Technical Field

[0001] This utility model relates to the field of bio-organic fertilizer production technology, and in particular to an anti-clogging bio-organic fertilizer drum grading screen. Background Technology

[0002] Bio-organic fertilizers use advanced technology to add a variety of highly active growth-promoting bacteria, giving them multiple advantages.

[0003] It can revitalize and repair damaged soil, improving problems such as acidification and compaction caused by long-term use of livestock and poultry manure, chemical fertilizers, and pesticide residues; it can decompose organic matter, increasing soil organic matter and beneficial microorganisms; and it can activate nutrients, improving soil fertility by 30%-50%. The bio-organic fertilizer drum grading screen is a screening device used in the production process of bio-organic fertilizer. Its main function is to separate and screen bio-organic fertilizers of different particle sizes. Through the rotation of the drum, the material moves within the drum. Utilizing the difference in screen aperture size, fertilizers that meet the required particle size are screened out, while those that do not meet the requirements remain in the drum for further screening. This achieves bio-organic fertilizer grading by particle size, ensuring the uniformity and consistency of product quality and meeting the needs of different application scenarios and customers for fertilizer particle size.

[0004] However, existing bio-organic fertilizer drum grading screens generally suffer from problems such as easy clogging and difficulty in cleaning. Because bio-organic fertilizers have complex compositions, often containing sticky substances and fibrous impurities, these easily adhere to the screen holes during screening. As the amount of clogging increases, screening efficiency decreases significantly. Furthermore, most current equipment lacks an effective automatic cleaning mechanism; once the screen holes are clogged, manual cleaning is the only option, requiring the machine to be stopped.

[0005] Not only does it consume a significant amount of time and manpower, but frequent downtime also severely impacts production progress. Furthermore, most existing equipment has a simple screening structure, causing organic fertilizer to tend to accumulate at the front end of the drum screen after being poured in, resulting in excessive screening pressure in that area. When the drum rotates, the fertilizer at the top lacks agitation and guidance, and flows into the subsequent coarse filtration area before it has had sufficient time to be fully screened in the fine filtration area. This prevents precise grading of fertilizers of different particle sizes, ultimately leading to insufficient screening accuracy and making it difficult to meet the production requirements of high-quality bio-organic fertilizer.

[0006] In response to this technical problem, this application proposes an anti-clogging bio-organic fertilizer drum grading screen. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies, such as easy clogging and difficulty in cleaning screen holes, and the lack of an automatic cleaning mechanism. The proposed anti-clogging bio-organic fertilizer drum grading screen utilizes an internal linkage structure to achieve synchronous rotation between the drum brush and the drum screen, enabling real-time cleaning of the screen holes. The clogging material brushed off automatically falls back into the material for further sieving, avoiding the tedious manual cleaning required by traditional drum screens and significantly improving production efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A clog-resistant bio-organic fertilizer drum grading screen includes a shell. Baffles are fixedly connected to the left and right ends of the inner wall of the shell. Rotating rods are rotatably connected to the left and right ends of the inner wall of the shell. A drum screen is rotatably connected to the inner wall of the shell. The drum screen is connected to the rotating rods through a rotating assembly. A motor is installed at the right end of the rear side of the outer wall of the shell. The drive end of the motor is connected to the rotating rod at the bottom right end. A drum brush is connected to the rear end of the inner wall of the drum screen through a transmission assembly. The front end of the drum brush is rotatably connected to the front side of the inner wall of the shell. A feed pipe is provided on the front side of the shell. Discharge ports are provided at both the front and rear ends of the bottom of the shell.

[0010] Furthermore, the inner wall of the drum screen is provided with an internal tooth 2 at the front end, the driven gear 2 is rotatably connected to the bottom front side of the inner wall of the shell, the bottom rear side of the inner wall of the shell is rotatably connected to a mounting base, the front side of the mounting base is slidably connected to a connecting block, and the connecting block and the side of the driven gear 2 adjacent to each other are connected to a flap plate through a mounting assembly.

[0011] Furthermore, a spring is provided on the rear side of the connecting block, and the other end of the spring is fixedly connected to the rear side of the inner wall of the mounting base.

[0012] Furthermore, a flow divider is provided on the right side of the flap, and an observation window is provided on the rear side of the housing.

[0013] Furthermore, the rotating assembly includes external teeth and a drive gear. The external teeth are disposed at the front and rear ends of the outer wall of the drum screen, and the drive gear is fixedly connected to the front and rear ends of the outer side of the rotating rod on the bottom side.

[0014] The external gear teeth mesh with the drive gear.

[0015] Furthermore, the transmission assembly includes a driven gear and an internal tooth. The driven gear is rotatably connected to the top end of the rear side of the inner wall of the housing. The front side of the driven gear is fixedly connected to the rear end of the drum brush. The internal tooth is disposed at the rear end of the inner wall of the drum screen and meshes with the driven gear.

[0016] Furthermore, the mounting assembly includes a positioning hole and a positioning bolt. The positioning hole is located on the side adjacent to the driven gear and the connecting block. The positioning bolt is fixedly connected to the front and rear sides of the flap. The positioning hole and the positioning bolt are detachably connected.

[0017] Furthermore, a pad is fixedly connected to the middle of the outer side of the rotating rod.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the synchronous rotation of the drum brush and the drum screen is achieved through the meshing transmission of the internal teeth at the rear end of the inner wall of the drum screen and the driven gear, thus cleaning the screen holes in real time. The blockages brushed off automatically fall back into the material for further screening, avoiding the tedious manual cleaning required by traditional drum screens and significantly improving production efficiency.

[0020] 2. In this utility model, the flipping and diversion action of the flap effectively solves the problem of fertilizer accumulating at the front end and some materials entering the coarse filtration zone without sufficient screening in existing devices. The flap evenly disperses the fertilizer into the fine filtration area through the diversion channel and prolongs the residence time, so that fertilizers of different particle sizes can be accurately graded. Attached Figure Description

[0021] Figure 1 is a perspective view of the anti-clogging bio-organic fertilizer drum grading screen proposed in this utility model;

[0022] Figure 2 is a schematic diagram of the rotating rod structure of the anti-clogging bio-organic fertilizer drum grading screen proposed in this utility model;

[0023] Figure 3 shows the drum screen structure of the anti-clogging bio-organic fertilizer drum grading screen proposed in this utility model.

[0024] Schematic diagram;

[0025] Figure 4 is a schematic diagram of the mounting base structure of the anti-clogging bio-organic fertilizer drum grading screen proposed in this utility model.

[0026] Legend:

[0027] 1. Shell; 2. Baffle; 3. Rotary drum screen; 4. Pad block; 5. Observation window; 6. Motor; 7. Rotating assembly; 8. Rotating rod; 9. Drum brush; 10. Transmission assembly; 11. Feed pipe; 12. Driven gear II; 13. Internal gear II; 14. Mounting base; 15. Connecting block; 16. Mounting assembly; 17. Flip plate;

[0028] 18. Discharge port; 19. Diverter trough; 20. Spring; 701. External gear; 702. Drive gear; 1001. Driven gear one; 1002. Internal gear one; 1601. Positioning hole; 1602. Positioning bolt. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Referring to Figures 1-3, an embodiment of this utility model is provided: an anti-clogging type bio-organic fertilizer drum grading screen, including a shell 1, baffles 2 fixedly connected to the left and right ends of the inner wall of the shell 1, rotating rods 8 rotatably connected to the left and right ends of the inner wall of the shell 1, a drum screen 3 rotatably connected to the inner wall of the shell 1, the drum screen 3 being connected to the rotating rods 8 via a rotating assembly 7, a motor 6 installed at the right end of the rear side of the outer wall of the shell 1, the drive end of the motor 6 being connected to the rotating rod 8 at the bottom right side, a drum brush 9 connected to the rear end of the inner wall of the drum screen 3 via a transmission assembly 10, the front end of the drum brush 9 being rotatably connected to the front side of the inner wall of the shell 1, a feed pipe 11 provided on the front side of the shell 1, and discharge ports 18 provided at both the front and rear ends of the bottom of the shell 1;

[0031] Specifically, after the motor 6 starts, it drives the rotating rod 8 at the bottom right side to rotate, which in turn interacts with the drive gear 702.

[0032] The meshing of the external teeth 701 drives the drum screen 3 to rotate. The fine filter holes at the front end and the coarse filter holes at the rear end of the outer wall of the drum screen 3 form a grading and screening area. During the rotation of the drum screen 3, the internal teeth 1002 at the rear end of the inner wall drive the driven gear 1001 to rotate, causing the drum brush 9 to rotate synchronously. This continuously brushes and cleans the blockages in the screen holes on the inner wall of the drum screen 3. The blockages brushed off fall back into the material to be screened below due to gravity and participate in the screening process again, effectively solving the problem of easy clogging and difficult cleaning of traditional drum screen holes.

[0033] Reference Figures 2-4The inner wall of the drum screen 3 has an internal tooth 13 at its front end. A driven gear 12 is rotatably connected to the bottom front side of the inner wall of the housing 1. A mounting base 14 is rotatably connected to the bottom rear side of the inner wall of the housing 1. A connecting block 15 is slidably connected to the front side of the mounting base 14. A flap 17 is connected to the side of the connecting block 15 and the driven gear 12 via a mounting assembly 16. A spring 20 is located on the rear side of the connecting block 15, and the other end of the spring 20 is fixedly connected to the rear side of the inner wall of the mounting base 14. A flow divider 19 is provided on the right side of the flap 17, and an observation window 5 is provided on the rear side of the housing 1. The rotating assembly 7 includes an external tooth 701 and a driving gear 702. The external tooth 701 is located at the front and rear ends of the outer wall of the drum screen 3, and the driving gear 702 is fixedly connected to the front and rear ends of the outer side of the bottom rotating rod 8. The external tooth 701 meshes with the driving gear 702. The transmission assembly 10... The assembly includes a driven gear 1001 and an internal tooth 1002. The driven gear 1001 is rotatably connected to the top of the rear side of the inner wall of the housing 1. The front side of the driven gear 1001 is fixedly connected to the rear end of the drum brush 9. The internal tooth 1002 is located at the rear end of the inner wall of the drum screen 3 and meshes with the driven gear 1001. The mounting assembly 16 includes a positioning hole 1601 and a positioning bolt 1602. The positioning hole 1601 is opened on the side close to the driven gear 12 and the connecting block 15. The positioning bolt 1602 is fixedly connected to the front and rear sides of the flap 17. The positioning hole 1601 and the positioning bolt 1602 are detachably connected. A pad 4 is fixedly connected to the middle of the outer side of the rotating rod 8.

[0034] Specifically, the internal teeth 13 at the front end of the inner wall of the drum screen 3 drive the driven gear 12 to rotate, which in turn drives the flap 17 to rotate around the connection point. The flap 17, through the diversion groove 19, agitates and diverts the organic fertilizer inside the drum screen 3, causing the fertilizer accumulated at the front end to be evenly dispersed into the fine filtration area, extending the residence time of the fertilizer in the fine filtration area, and preventing the top fertilizer from flowing into the coarse filtration area without being fully screened.

[0035] This significantly improves the accuracy and efficiency of grading and screening. The elasticity of the spring 20 can alleviate the impact force when the flip plate 17 turns over the fertilizer, ensuring the stability of the structure. The quick-positioning connection between the positioning bolt 1602 and the positioning hole 1601 makes the maintenance and operation of the flip plate 17 more convenient and efficient. The overall structure achieves multiple technical effects of anti-clogging, high-efficiency screening and convenient maintenance through the linkage design of multiple components.

[0036] Working principle: Motor 6 starts and drives the rotating rod 8 at the bottom right side to rotate. Through the engagement of the drive gear 702 and the outer teeth 701 on the outer wall of the drum screen 3, the drum screen 3 rotates. The fine filter holes at the front end and the coarse filter holes at the rear end of its outer wall form a grading and screening area. When the drum screen 3 rotates, the inner teeth 1002 at the rear end of the inner wall engage with the driven gear 1001, driving the drum brush 9 to rotate, clearing the screen hole blockages and causing them to fall back for further screening. At the same time, the inner teeth 13 at the front end of the inner wall of the drum screen 3 engage with the driven gear 12, driving the flap 17 to rotate around the connection point. Through the diversion channel 19, the fertilizer is diverted to the fine filter area to prolong the residence time. Spring 20 buffers the impact force of flap 17. The positioning bolt 1602 cooperates with the positioning hole 1601 to realize the quick installation and removal of flap 17. Baffle 2 limits and guides the drum screen 3. Pad 4 reinforces the rotating rod 8. Support strength: Material enters through the feed pipe 11, and after screening, it is discharged from the front and rear discharge ports 18 at the bottom of the shell 1. The observation window 5 allows observation of the internal condition. When this anti-clogging bio-organic fertilizer drum grading screen is working, the motor 6 drives the rotating rod 8 at the bottom right side to rotate. Through the meshing of the drive gear 702 and the external teeth 701, the drum screen 3 is rotated. The fine filter holes at the front end and the coarse filter holes at the rear end of the outer wall of the drum screen 3 form a grading and screening area. During the rotation of the drum screen 3, the internal teeth 1002 at the rear end of the inner wall drive the driven gear 1001 to rotate, so that the drum brush 9 rotates synchronously to clean the screen hole blockage. The blockage brushed off falls back into the material to be screened for further screening. Meanwhile, the internal teeth 13 at the front end of the inner wall of the drum screen 3 drive the driven gear 12 to rotate, which in turn drives the flap 17 to rotate around the connection point. The flap 17 flips and diverts the fertilizer through the diversion channel 19, causing the fertilizer to disperse into the fine filter area and prolonging the residence time. The spring 20 relieves the impact force of the flap 17. The connection between the positioning bolt 1602 and the positioning hole 1601 facilitates the maintenance of the flap 17. The whole system achieves anti-clogging, efficient screening and convenient maintenance through the linkage of multiple components.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to be construed as a complete invention.

[0038] To limit the scope of this utility model, although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anti-clogging type bio-organic fertilizer drum grading screen, characterized in that, The device includes a housing (1), with baffles (2) fixedly connected to the left and right ends of the inner wall of the housing (1), rotating rods (8) rotatably connected to the left and right ends of the inner wall of the housing (1), a drum screen (3) rotatably connected to the inner wall of the housing (1), the drum screen (3) being connected to the rotating rods (8) via a rotating assembly (7), a motor (6) being installed on the right end of the rear side of the outer wall of the housing (1), the driving end of the motor (6) being connected to the rotating rods (8) at the bottom right side, a drum brush (9) being connected to the rear end of the inner wall of the drum screen (3) via a transmission assembly (10), the front end of the drum brush (9) being rotatably connected to the front side of the inner wall of the housing (1), a feed pipe (11) being provided on the front side of the housing (1), and discharge ports (18) being provided at the front and rear ends of the bottom of the housing (1).

2. The anti-clogging bio-organic fertilizer drum grading screen according to claim 1, characterized in that: The inner wall of the drum screen (3) is provided with an internal tooth 2 (13) at the front end. The driven gear 2 (12) is rotatably connected to the bottom front side of the inner wall of the shell (1). The bottom rear side of the inner wall of the shell (1) is rotatably connected to a mounting base (14). A connecting block (15) is slidably connected to the front side of the mounting base (14). A flap (17) is connected to the side of the connecting block (15) and the driven gear 2 (12) near each other through a mounting assembly (16).

3. The anti-clogging bio-organic fertilizer drum grading screen according to claim 2, characterized in that: A spring (20) is provided on the rear side of the connecting block (15), and the other end of the spring (20) is fixedly connected to the rear side of the inner wall of the mounting base (14).

4. The anti-clogging bio-organic fertilizer drum grading screen according to claim 2, characterized in that: The flap (17) has a diversion groove (19) on the right side, and the housing (1) has an observation window (5) on the rear side.

5. The anti-clogging bio-organic fertilizer drum grading screen according to claim 1, characterized in that: The rotating assembly (7) includes an external tooth (701) and a drive gear (702). The external tooth (701) is disposed at the front and rear ends of the outer wall of the drum screen (3), and the drive gear (702) is fixedly connected to the bottom side of the drum screen. The outer front and rear ends of the rotating rod (8) are connected to the drive gear (702) by the external teeth (701).

6. The anti-clogging bio-organic fertilizer drum grading screen according to claim 1, characterized in that: The transmission assembly (10) includes a driven gear (1001) and an internal gear (1002). The driven gear (1001) is rotatably connected to the top end of the rear side of the inner wall of the housing (1). The front side of the driven gear (1001) is fixedly connected to the rear end of the drum brush (9). The internal gear (1002) is disposed at the rear end of the inner wall of the drum screen (3). The internal gear (1002) meshes with the driven gear (1001).

7. The anti-clogging bio-organic fertilizer drum grading screen according to claim 2, characterized in that: The mounting assembly (16) includes a positioning hole (1601) and a positioning bolt (1602). The positioning hole (1601) is located on the same side as the driven gear (12) and the connecting block (15). The positioning bolt (1602) is fixedly connected to the front and rear sides of the flap (17). The positioning hole (1601) and the positioning bolt (1602) are detachably connected.

8. The anti-clogging bio-organic fertilizer drum grading screen according to claim 1, characterized in that: A pad (4) is fixedly connected to the middle of the outer side of the rotating rod (8).

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