Drum-type drying and screening equipment for bio-organic fertilizer

By introducing a screen cleaning mechanism and a stirring mechanism into the drum-type drying and screening equipment, the problem of screen clogging was solved, achieving thorough drying and efficient screening of bio-organic fertilizer and improving the practicality of the equipment.

CN224142758UActive Publication Date: 2026-04-21WUHAN WONONG FERTILIZER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing rotary drum drying and screening equipment for bio-organic fertilizers is prone to screen clogging during screening, which affects the screening effect.

Method used

A drum-type drying and screening device was designed, which includes a screen cleaning mechanism and a stirring mechanism. The screen cleaning mechanism, consisting of a sandwich screen and impact balls, prevents screen clogging, and the combination of stirring impeller and hot air achieves thorough drying of bio-organic fertilizer.

Benefits of technology

It effectively prevents screen clogging, ensures screening effect, and makes the biological organic fertilizer dry more thoroughly through sufficient hot air drying and stirring, thus improving the practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of production and processing of bio-organic fertilizers, and discloses drum-type drying and screening equipment for bio-organic fertilizers, which comprises a screening support, a discharge hopper fixedly penetrates through the top of the screening support, a screening barrel is fixedly mounted at the top of the discharge hopper, and a drum support is rotatably mounted on the inner side of the screening barrel. A plurality of mounting ports are formed in the roller bracket, and net cleaning mechanisms are arranged on the inner sides of the plurality of mounting ports; a discharging head is fixedly installed on one side of the screening barrel, a driving shell fixedly penetrates through one side of the discharging head, a driving cavity is formed in the inner side of the driving shell, and a stirring mechanism is arranged on the inner side of the driving cavity. The utility model has the following advantages and effects: when the roller bracket drives the plurality of interlayer screens to rotate, the plurality of impact balls in the interlayer screens are driven to roll, so that the interlayer screens are impacted, and bio-organic fertilizers are prevented from blocking the screens to influence the screening effect.
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Description

Technical Field

[0001] This utility model relates to the field of bio-organic fertilizer production technology, and in particular to a drum-type drying and screening device for bio-organic fertilizer. Background Technology

[0002] Bio-organic fertilizer refers to a type of fertilizer that combines the effects of microbial fertilizer and organic fertilizer. It is composed of specific functional microorganisms and organic materials mainly derived from animal and plant residues (such as livestock and poultry manure, crop straw, etc.) that have undergone harmless treatment and composting. It contains abundant organic matter, nitrogen, phosphorus, potassium and other macroelements, as well as micronutrients such as calcium, magnesium, sulfur, iron, zinc, manganese, etc., which can provide comprehensive nutrition for crops, improve soil structure and increase soil fertility. It also contains a large number of beneficial microorganisms, such as Bacillus, lactic acid bacteria and yeast. These microorganisms can promote the transformation and release of nutrients in the soil, inhibit the growth of harmful microorganisms, enhance the crop's resistance to diseases and pests, and improve crop yield and quality.

[0003] In related technologies, when producing bio-organic fertilizer, it is necessary to dry and screen it using a drum-type drying and screening equipment. However, existing equipment is prone to clogging the screen with bio-organic fertilizer during screening, which affects the screening effect.

[0004] Therefore, we propose a drum-type drying and screening device for bio-organic fertilizer to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a drum-type drying and screening device for bio-organic fertilizer, which has the effects of cleaning the screen and thorough drying.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a drum-type drying and screening device for bio-organic fertilizer, including a screening support, a discharge hopper fixedly penetrating the top of the screening support, a screening barrel fixedly installed on the top of the discharge hopper, a drum support rotatably installed on the inner side of the screening barrel, a plurality of installation ports being provided on the drum support, and a screen cleaning mechanism being provided on the inner side of each of the plurality of installation ports; a discharge head fixedly installed on one side of the screening barrel, a drive housing fixedly penetrating one side of the discharge head, a drive chamber being provided on the inner side of the drive housing, and a stirring mechanism being provided on the inner side of the drive chamber.

[0007] A further feature of this invention is that the bottom of the screening barrel is provided with a discharge port, the diameter of which is smaller than the inlet at the top of the discharge hopper.

[0008] By adopting the above technical solution, it is convenient to discharge the screened bio-organic fertilizer.

[0009] A further feature of this invention is that a feed head is fixedly installed on one side of the screening barrel, and a hot air head is provided on one side of the feed head.

[0010] By adopting the above technical solution, it is easy to deliver hot air through the hot air head to the screening barrel, thereby drying the bio-organic fertilizer.

[0011] A further feature of this invention is that a baffle is fixedly installed on one side of the screening support.

[0012] By adopting the above technical solution, the spillage of bio-organic fertilizer during discharge can be prevented.

[0013] A further feature of this invention is that the screen cleaning mechanism includes a screen frame, a sandwich screen, and multiple impact balls. The sandwich screen is fixedly installed on the inner side of the screen frame, and multiple impact balls are rotatably installed on the inner side of the sandwich screen.

[0014] By adopting the above technical solution, it is easy to clean the bio-organic fertilizer that clogs the screen.

[0015] A further feature of this invention is that all the impact balls are made of rubber.

[0016] By adopting the above technical solution, damage to the sandwich screen caused by the impact ball can be prevented.

[0017] A further feature of this invention is that a reverse bevel gear is rotatably mounted on the left inner wall of the drive chamber, a reverse bracket is rotatably mounted on one side of the drive housing located inside the screening barrel, one side of the reverse bevel gear is fixedly connected to the reverse bracket, and the reverse bracket is fixedly connected to the drum bracket.

[0018] By adopting the above technical solution, the roller support is driven to rotate counterclockwise by the reverse support.

[0019] A further feature of this invention is that the stirring mechanism includes a driving bevel gear, a forward bevel gear, and a forward shaft. The driving bevel gear is rotatably mounted on the bottom inner wall of the driving chamber, and the forward bevel gear is rotatably mounted on the right inner wall of the driving chamber. Both the reverse bevel gear and the forward bevel gear mesh with the same driving bevel gear. A forward shaft is fixedly mounted on one side of the forward bevel gear, and the forward shaft rotatably passes through the reverse bevel gear and the reverse support.

[0020] By adopting the above technical solution, the active bevel gear can drive the reverse bevel gear and the forward bevel gear to rotate.

[0021] A further feature of this invention is that a motor slot is provided inside the drive housing, and a servo motor is fixedly installed on one inner wall of the motor slot, with the output shaft of the servo motor being fixedly connected to the drive bevel gear.

[0022] By adopting the above technical solution, a servo motor can drive the active bevel gear to rotate.

[0023] A further feature of this invention is that a plurality of stirring impellers are fixedly sleeved on the positive shaft.

[0024] By adopting the above technical solution, it is easier to stir the bio-organic fertilizer, making it heat more evenly.

[0025] This application includes at least one of the following beneficial technical effects:

[0026] 1. This application utilizes a stirring mechanism consisting of a forward shaft and stirring blades to stir the bio-organic fertilizer, allowing it to come into more thorough contact with hot air, thus continuously evaporating the moisture in the bio-organic fertilizer and making it dry more completely, thereby increasing the practicality of the equipment.

[0027] 2. This application utilizes a screen cleaning mechanism composed of sandwich screens and impact balls. When the roller support drives multiple sandwich screens to rotate, it can drive multiple impact balls to roll, thereby impacting the sandwich screens and causing the organic fertilizer adhering to the screens to fall off, preventing screen blockage and affecting the screening effect. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of a drum-type drying and screening device for bio-organic fertilizer proposed in this utility model.

[0030] Figure 2 This is a three-dimensional cross-sectional view of a drum-type drying and screening device for bio-organic fertilizer proposed in this utility model.

[0031] Figure 3 This is a three-dimensional structural diagram of the screen cleaning mechanism of a drum-type drying and screening device for bio-organic fertilizer proposed in this utility model.

[0032] Figure 4 This is a three-dimensional structural diagram of the stirring mechanism of a drum-type drying and screening device for bio-organic fertilizer proposed in this utility model.

[0033] Figure 5This is a three-dimensional structural breakdown diagram of the stirring mechanism of a drum-type drying and screening device for bio-organic fertilizer proposed in this utility model.

[0034] In the diagram, 1. Screening support; 2. Discharge hopper; 3. Screening barrel; 4. Feed head; 5. Discharge head; 6. Baffle; 7. Drum support; 8. Screen frame; 9. Sandwich screen; 10. Impact ball; 11. Drive chamber; 12. Drive housing; 13. Drive bevel gear; 14. Servo motor; 15. Reverse bevel gear; 16. Reverse support; 17. Forward bevel gear; 18. Forward shaft; 19. Agitator impeller. Detailed Implementation

[0035] Reference Figure 1-5 A drum-type drying and screening device for bio-organic fertilizer includes a screening support 1, a discharge hopper 2 fixedly inserted through the top of the screening support 1, a screening barrel 3 fixedly installed on the top of the discharge hopper 2, a drum support 7 rotatably installed on the inner side of the screening barrel 3, a plurality of installation ports on the drum support 7, and a screen cleaning mechanism provided on the inner side of each of the plurality of installation ports; a discharge head 5 fixedly installed on one side of the screening barrel 3, a drive housing 12 fixedly inserted through one side of the discharge head 5, a drive chamber 11 opened on the inner side of the drive housing 12, and a stirring mechanism provided on the inner side of the drive chamber 11.

[0036] In this embodiment, a discharge port is provided at the bottom of the screening bucket 3. The diameter of the discharge port is smaller than the inlet port at the top of the discharge hopper 2, which facilitates the discharge of the screened bio-organic fertilizer.

[0037] In this embodiment, a feed head 4 is fixedly installed on one side of the screening barrel 3, and a hot air head is provided on one side of the feed head 4 to facilitate the delivery of hot air to the screening barrel 3, thereby drying the bio-organic fertilizer.

[0038] In this embodiment, a baffle 6 is fixedly installed on one side of the screening support 1 to prevent the biological organic fertilizer from spilling during discharge.

[0039] In this embodiment, the screen cleaning mechanism includes a screen frame 8, a sandwich screen 9, and multiple impact balls 10. The sandwich screen 9 is fixedly installed on the inner side of the screen frame 8, and multiple impact balls 10 are rolled on the inner side of the sandwich screen 9 to facilitate the cleaning of bio-organic fertilizer that clogs the screen.

[0040] In this embodiment, all impact balls 10 are made of rubber to prevent the impact balls 10 from damaging the sandwich screen 9.

[0041] In this embodiment, a reverse bevel gear 15 is rotatably mounted on the left inner wall of the drive chamber 11, and a reverse bracket 16 is rotatably mounted on one side of the drive housing 12 located inside the screening barrel 3. One side of the reverse bevel gear 15 is fixedly connected to the reverse bracket 16, and the reverse bracket 16 is fixedly connected to the drum bracket 7. The drum bracket 7 is driven to rotate counterclockwise by the reverse bracket 16.

[0042] In this embodiment, the stirring mechanism includes a driving bevel gear 13, a forward bevel gear 17, and a forward shaft 18. The driving bevel gear 13 is rotatably mounted on the bottom inner wall of the drive chamber 11, and the forward bevel gear 17 is rotatably mounted on the right inner wall of the drive chamber 11. The reverse bevel gear 15 and the forward bevel gear 17 are both meshed with the same driving bevel gear 13. The forward shaft 18 is fixedly mounted on one side of the forward bevel gear 17. The forward shaft 18 rotatably passes through the reverse bevel gear 15 and the reverse support 16, and can drive the reverse bevel gear 15 and the forward bevel gear 17 to rotate through the driving bevel gear 13.

[0043] In this embodiment, a motor slot is provided inside the drive housing 12, and a servo motor 14 is fixedly installed on one inner wall of the motor slot. The output shaft of the servo motor 14 is fixedly connected to the active bevel gear 13, and the active bevel gear 13 can be rotated by the servo motor 14.

[0044] In this embodiment, multiple stirring impellers 19 are fixedly sleeved on the forward shaft 18 to facilitate stirring of the bio-organic fertilizer and make it heat more evenly.

[0045] Working Principle: During the drying and screening of bio-organic fertilizer, the operator pours the bio-organic fertilizer into the screening drum 3, then starts the equipment. The servo motor 14 starts, driving the active bevel gear 13 to rotate. The rotation of the active bevel gear 13 drives the forward bevel gear 17 and the reverse bevel gear 15 to rotate. The rotation of the reverse bevel gear 15 drives the reverse support 16 to rotate counterclockwise, which in turn drives the drum support 7 to rotate counterclockwise. The rotation of the drum support 7 drives multiple screen frames 8 and sandwich screens 9 to move around the same reverse bevel gear 15 as the center. The rotation of the multiple sandwich screens 9 screens screens the bio-organic fertilizer. As the bio-organic fertilizer gradually moves towards the discharge end in the screening drum 3 with the rotational motion, particles that meet the screen aperture size requirements will fall into the discharge hopper 2 through the sandwich screens 9 and then be discharged through the discharge port, while larger particles continue to remain in the screening drum 3. The mixture rolls until its size is reduced to be able to pass through the sandwich screen 9 or be discharged from the end of the discharge head 5. This achieves the screening of the bio-organic fertilizer and separates products of different particle sizes. At the same time, the rotation of the forward bevel gear 17 drives the forward shaft 18 to rotate, which in turn drives multiple stirring impellers 19 to rotate clockwise, stirring the bio-organic fertilizer and causing it to be continuously lifted and sprinkled. Simultaneously, the hot air blower equipped with the equipment is started. The hot air generated by the hot air blower is input into the screening barrel 3 through the hot air head. The bio-organic fertilizer comes into full contact with the hot air, and through heat conduction and heat convection, the moisture in it evaporates continuously, thereby achieving the purpose of drying. When the multiple sandwich screens 9 rotate with the drum support 7, the multiple impact balls 10 set in the multiple sandwich screens 9 will impact the screens, thereby preventing the bio-organic fertilizer from clogging the screens and ensuring the stability of screening.

[0046] The technological advancements of this invention compared to existing technologies are as follows: it can stir the bio-organic fertilizer, allowing it to come into more thorough contact with hot air, thus continuously evaporating the moisture in the bio-organic fertilizer and making it drier more completely, increasing the practicality of the equipment. Furthermore, when the roller support 7 drives the multiple sandwich screens 9 to rotate, it can also drive the multiple impact balls 10 to roll, thereby impacting the sandwich screens 9 and causing the bio-organic fertilizer adhering to the screens to fall off, preventing the screens from clogging and affecting the screening effect.

[0047] The above provides a detailed description of a drum-type drying and screening device for bio-organic fertilizer provided in this application. Specific embodiments have been used to illustrate the principles and implementation methods of this application. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A drum-type drying and screening device for bio-organic fertilizer, characterized in that, Includes a screening support (1), the top of which is fixedly connected to a discharge hopper (2), the top of which is fixedly connected to a screening barrel (3), and the inner side of which is rotatably connected to a roller support (7). The roller support (7) has multiple installation ports, and the inner side of each installation port is provided with a screen cleaning mechanism. A discharge head (5) is fixedly installed on one side of the screening barrel (3), and a drive housing (12) is fixedly passed through one side of the discharge head (5). A drive chamber (11) is opened on the inner side of the drive housing (12), and a stirring mechanism is provided on the inner side of the drive chamber (11).

2. The drum drying and screening apparatus for bio-organic fertilizer according to claim 1, characterized in that: The bottom of the screening barrel (3) is provided with a discharge port, the diameter of which is smaller than the inlet at the top of the discharge hopper (2).

3. The drum drying and screening apparatus for bio-organic fertilizer according to claim 1, characterized in that: A feed head (4) is fixedly installed on one side of the screening barrel (3), and a hot air head is provided on one side of the feed head (4).

4. The drum drying and screening apparatus for bio-organic fertilizer according to claim 1, characterized in that: A baffle (6) is fixedly installed on one side of the screening support (1).

5. The drum drying and screening apparatus for bio-organic fertilizer according to claim 1, characterized in that: The screen cleaning mechanism includes a screen frame (8), a sandwich screen (9) and multiple impact balls (10). The sandwich screen (9) is fixedly installed on the inner side of the screen frame (8), and multiple impact balls (10) are rolled on the inner side of the sandwich screen (9).

6. The drum drying and screening apparatus for bio-organic fertilizer according to claim 5, characterized in that: All impact balls (10) are made of rubber.

7. The drum drying and screening apparatus for bio-organic fertilizer according to claim 1, characterized in that: A reverse bevel gear (15) is rotatably installed on the left inner wall of the drive chamber (11). A reverse bracket (16) is rotatably installed on one side of the drive housing (12) inside the screening barrel (3). One side of the reverse bevel gear (15) is fixedly connected to the reverse bracket (16). The reverse bracket (16) is fixedly connected to the drum bracket (7).

8. The drum drying and screening apparatus for bio-organic fertilizer according to claim 7, characterized in that: The stirring mechanism includes a drive bevel gear (13), a forward bevel gear (17), and a forward shaft (18). The drive bevel gear (13) is rotatably mounted on the bottom inner wall of the drive chamber (11), and the forward bevel gear (17) is rotatably mounted on the right inner wall of the drive chamber (11). The reverse bevel gear (15) and the forward bevel gear (17) are both meshed with the same drive bevel gear (13). The forward shaft (18) is fixedly mounted on one side of the forward bevel gear (17), and the forward shaft (18) rotatably passes through the reverse bevel gear (15) and the reverse support (16).

9. The drum drying and screening apparatus for bio-organic fertilizer according to claim 8, characterized in that: The drive housing (12) has a motor slot inside, and a servo motor (14) is fixedly installed on one inner wall of the motor slot. The output shaft of the servo motor (14) is fixedly connected to the active bevel gear (13).

10. The drum-type drying and screening equipment for bio-organic fertilizer according to claim 9, characterized in that: Multiple stirring impellers (19) are fixedly sleeved on the positive shaft (18).