Rotary drum granulator for producing granular organic fertilizer
By setting a rotatable sealing structure and dust-blocking curtain at the feed and discharge ends of the rotary cylinder granulator, and using water as a binder in combination with the spray structure, the environmental pollution problem caused by dust in the rotary cylinder granulator is solved, and a clean granulation environment and high-quality granulation production are achieved.
Patent Information
- Application Number
- CN202422292715.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing rotary cylinder granulation device is prone to dust during the granulation process, which leads to pollution in the workshop and surrounding environment and affects the comfort of staff.
A rotary cylinder granulator including a base, a rotary cylinder, an upper sealing structure and a lower sealing structure are designed. By providing rotatably connected sealing structures and dust-blocking curtains at both ends of the rotary cylinder, the feed and discharge ends of the rotary cylinder are sealed, and water is used as a binder for granulation to avoid the occurrence of dust.
Effectively prevent dust from occurring during the rotation of powdered organic fertilizer materials, keep the workshop and surrounding environment clean, and improve the comfort and granulation quality of the working environment.
Smart Images
Figure CN223196975U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of granulators, and in particular relates to a rotary drum granulator for producing granular organic fertilizers. Background Art
[0002] Organic fertilizers include all fertilizer-usable materials other than chemical fertilizers, typically consisting of human and animal waste, crop straw, and green manure. They are processed from biomass, animal and plant waste, and plant residues, eliminating toxic and harmful substances. They are enriched with beneficial substances, including various organic acids, peptides, and abundant nutrients such as nitrogen, phosphorus, and potassium. The production of granular organic fertilizers typically involves granulation, drying, and cooling, with rotary drum granulators being a common device used in this process.
[0003] In the prior art, a rotary drum granulation device typically includes a rotating drum, into which organic fertilizer material enters at one end. A certain binder (usually water) is added to the material, and the rotating drum rotates to mix, squeeze, and granulate the material. However, the organic fertilizer material entering the rotating drum is usually in powder form. Therefore, as the rotating drum rotates, it is easy to generate a lot of dust at the openings (inlet and outlet) at both ends of the rotating drum, causing environmental pollution in the workshop and the surrounding area, making it difficult for workers to work in a comfortable environment. Utility Model Content
[0004] The embodiment of the utility model provides a rotary drum granulator for producing granular organic fertilizer, aiming to solve the problem of poor practicality of existing rotary drum granulating devices due to easy generation of dust.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a rotary drum granulator for producing granular organic fertilizer, comprising:
[0006] The base has a mounting platform on the top; a feeding hopper is provided on the mounting platform;
[0007] The rotating drum is located above the mounting platform and is connected to the driving assembly provided on the mounting platform; the rotating drum is tilted, with the top end being the feeding end and the bottom end being the discharging end;
[0008] An upper sealing structure is fixed on the base and rotatably connected to the feed end of the rotating drum, and is used to seal the feed end of the rotating drum; the upper sealing structure has a feeding port connected to the feeding hopper;
[0009] The lower sealing structure is fixed on the base and is rotatably connected to the discharge end of the rotating drum for sealing the discharge end of the rotating drum; the lower sealing structure is provided with a discharge port.
[0010] In a possible implementation, the upper sealing structure includes:
[0011] A first bracket, fixed on the base;
[0012] The first sealing cover has a first protruding end extending into the barrel cavity of the rotating barrel, and the first protruding end is rotatably connected to the inner wall of the rotating barrel through a bearing; the first sealing cover is fixed on the first bracket; the feeding port is located on the first sealing cover.
[0013] In a possible implementation, the lower sealing structure includes:
[0014] A second bracket is fixed on the base;
[0015] The second sealing cover has a second protruding end extending into the barrel cavity of the rotating barrel, and the second protruding end is rotatably connected to the inner wall of the rotating barrel through a bearing; the second sealing cover is fixed on the second bracket; the discharge port is located on the second sealing cover.
[0016] In a possible implementation, a dust curtain is provided at the discharge port.
[0017] In one possible implementation, the driving component includes:
[0018] There are two groups of carrying rollers, the two groups of carrying rollers are spaced apart, and each group of carrying rollers includes two rollers spaced apart; each roller is rotatably mounted on the mounting platform, and a rotation space is formed on each roller;
[0019] There are two adapter rings, each of which is arranged in a one-to-one correspondence with each of the carrying rollers, and each of the adapter rings is arranged around the outer wall of the rotating drum and is in rolling contact with the corresponding rollers;
[0020] The driving structure is arranged on the mounting platform and is used for driving the rotating drum to rotate.
[0021] In a possible implementation, the driving structure includes:
[0022] A driving motor is fixedly mounted on the mounting platform;
[0023] a gear coaxially connected to the output end of the drive motor;
[0024] The gear ring is arranged around the outer circumference of the rotating cylinder and meshes with the gear.
[0025] In a possible implementation, the rotary drum granulator for producing granular organic fertilizer further includes a spraying structure, which includes:
[0026] A water spray pipeline is located in the cylinder cavity of the rotating cylinder and is arranged parallel to the axis of the rotating cylinder and above the axis of the rotating cylinder. The two ends of the water spray pipeline are respectively fixed to the upper sealing structure and the lower sealing structure, and one end extends out of the lower sealing structure. The water spray pipeline is provided with a plurality of nozzles, each of which is arranged at intervals along the axis of the rotating cylinder and is arranged downward.
[0027] The water supply module is connected to the protruding end of the water spray pipeline and is used for intermittent water supply.
[0028] In a possible implementation, a plurality of material blocking rings are provided on the inner wall of the rotating drum, and the material blocking rings are spaced apart along the axis of the rotating drum; a granulation space is formed between any two adjacent material blocking rings;
[0029] Wherein, each of the nozzles is arranged in one-to-one correspondence with each of the granulation spaces.
[0030] In this implementation, a rotating drum mounted on a base receives powdered material from a hopper and granulates it through rotation, ensuring high-quality pellets. Upper and lower sealing structures, mounted at both ends of the rotating drum and rotatably connected to the drum, seal the drum, preventing dust from escaping from the powdered organic fertilizer, thereby maintaining a clean environment in the workshop and surrounding areas. This approach is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 A schematic structural diagram of a rotary drum granulator for producing granular organic fertilizers provided by an embodiment of the present invention;
[0032] Figure 2 A schematic cross-sectional view of a rotary drum granulator for producing granular organic fertilizers provided by an embodiment of the present invention;
[0033] Description of reference numerals:
[0034] 10. Base; 11. Feeding hopper; 20. Rotating drum; 21. Material blocking ring; 30. Upper sealing structure; 31. First bracket; 32. First sealing cover; 40. Lower sealing structure; 41. Second bracket; 42. Second sealing cover; 43. Dust curtain; 50. Drive assembly; 51. Carrying roller; 52. Adapter ring; 53. Drive motor; 54. Gear; 55. Gear ring; 60. Spraying structure; 61. Water spraying pipeline; 62. Water supply module. DETAILED DESCRIPTION
[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0036] Please also refer to Figure 1 and Figure 2 Now, the granulator with a rotating drum 20 for producing granular organic fertilizer provided by the present invention will be described. The granulator with a rotating drum 20 for producing granular organic fertilizer includes a base 10, a rotating drum 20, an upper sealing structure 30, and a lower sealing structure 40. A mounting platform is provided on the top of the base 10. A feeding hopper 11 is provided on the mounting platform. The rotating drum 20 is located above the mounting platform and is connected to a drive assembly 50 provided on the mounting platform. The rotating drum 20 is arranged at an angle, with the top end being the feed end and the bottom end being the discharge end. The upper sealing structure 30 is fixed on the base 10 and is rotatably connected to the feed end of the rotating drum 20, and is capable of sealing the feed end of the rotating drum 20. The upper sealing structure 30 has a feeding port connected to the feeding hopper. The lower sealing structure 40 is fixed on the base 10 and is rotatably connected to the discharge end of the rotating drum 20, and is capable of sealing the discharge end of the rotating drum 20. The lower sealing structure 40 has a discharge port.
[0037] Compared to the prior art, the present embodiment provides a granulator with a rotating drum 20 for producing granular organic fertilizer. The rotating drum 20, mounted on a base 10, receives powdered material from a hopper 11 and granulates the material through rotation, ensuring high-quality pellets. The upper and lower sealing structures 30 and 40, mounted at both ends of the rotating drum 20 and rotatably connected to the rotating drum 20, ensure that both ends of the rotating drum 20 are sealed, preventing dust generated by the powdered organic fertilizer from overflowing, thereby maintaining a clean environment in the workshop and surrounding areas. The granulator is highly practical.
[0038] In some embodiments, the upper sealing structure 30 may be formed as follows: Figure 2 The structure shown. Figure 2 The upper sealing structure 30 includes a first bracket 31 and a first sealing cover 32. The first bracket 31 is fixed to the base 10. The first sealing cover 32 has a first extension end extending into the barrel cavity of the rotating drum 20. The first extension end is rotatably connected to the inner wall of the rotating drum 20 via a bearing. The first sealing cover 32 is fixed to the first bracket 31. The feeding port is located on the first sealing cover 32.
[0039] The first bracket 31 can ensure fixed support for the first sealing cover 32, and the first sealing cover 32 is rotatably connected to the rotating drum 20 through the first protruding end, thereby ensuring stable rotation of the rotating drum 20. At the same time, the first sealing cover 32 can ensure that the feeding end of the rotating drum 20 is blocked to prevent dust overflow caused by the rotation of the rotating drum 20.
[0040] It should be noted that the first extension end of the first sealing cover 32 may be a cylindrical structure. In addition, a conveying pipeline is provided between the first sealing cover 31 and the feeding hopper 11 .
[0041] In some embodiments, the lower sealing structure 40 may be formed as follows: Figure 2 The structure shown. Figure 2 The lower sealing structure 40 includes a second bracket 41 and a second sealing cover 42. The second bracket 41 is fixed to the base 10. The second sealing cover 42 has a second extension end extending into the barrel cavity of the rotating drum 20. The second extension end is rotatably connected to the inner wall of the rotating drum 20 via a bearing. The second sealing cover 42 is fixed to the second bracket 41. The discharge port is located on the second sealing cover 42.
[0042] The second bracket 41 can ensure fixed support for the second sealing cover 42, and the second sealing cover 42 is rotatably connected to the rotating drum 20 through the second protruding end, thereby ensuring stable rotation of the rotating drum 20. At the same time, the second sealing cover 42 can ensure that the feeding end of the rotating drum 20 is blocked to avoid dust overflow caused by the rotation of the rotating drum 20.
[0043] It should be noted that the second protruding end of the second sealing cover 42 may be a cylindrical structure.
[0044] In some embodiments, the lower sealing structure 40 may be formed as follows: Figure 2 The structure shown. Figure 2 A dust curtain 43 is provided at the discharge port. The dust curtain 43 can be made of EPDM rubber, which has good flexibility and can ensure the discharge of granular materials. At the same time, it can ensure that the dust inside the rotating drum 20 is intercepted to further prevent dust from overflowing.
[0045] In some embodiments, the drive assembly 50 may be configured as follows: Figure 1 The structure shown. Figure 1The drive assembly 50 includes a carrying roller 51, an adapter ring 52, and a drive structure. There are two groups of carrying rollers 51, and the two groups of carrying rollers 51 are arranged at intervals. Each group of carrying rollers 51 includes two rollers arranged at intervals. Each roller is rotatably arranged on the mounting platform, and a rotation space is formed on each roller. There are two adapter rings 52, and each adapter ring 52 is arranged in a one-to-one correspondence with each carrying roller 51. Each adapter ring 52 is surrounded by the outer wall of the rotating drum and is in rolling contact with the corresponding rollers. The drive structure is arranged on the mounting platform and can drive the rotating drum 20 to rotate.
[0046] Each roller can ensure the rolling connection of the adapter ring 52, thereby ensuring the rotation of the rotating drum 20, and at the same time providing a support for the rotating drum 20. The driving structure can ensure that the rotating drum 20 is driven to rotate, which can effectively ensure the granulation work and has strong practicality.
[0047] In some embodiments, the above-mentioned drive structure can be used as follows Figure 1 The structure shown. Figure 1 The drive structure includes a drive motor 53, a gear 54, and a gear ring 55. The drive motor 53 is fixed to the mounting platform. The gear 54 is coaxially connected to the output end of the drive motor 53. The gear ring 55 is disposed around the outer periphery of the rotating drum 20 and meshes with the gear 54.
[0048] The driving motor 53 drives the gear 54 and then drives the gear ring 55 to rotate, thereby realizing the rotation of the rotating drum 20. The structure is simple, the rotation is stable, and the practicability is strong.
[0049] In some embodiments, see Figure 1 and Figure 2 The rotating drum 20 granulator for producing granular organic fertilizer also includes a spray structure 60, which includes a water spray pipeline 61 and a water supply module 62. The water spray pipeline 61 is located in the barrel cavity of the rotating drum 20, and is arranged parallel to the axis of the rotating drum 20 and above the axis of the rotating drum 20. The two ends of the water spray pipeline 61 are respectively fixed on the upper sealing structure 30 and the lower sealing structure 40, and one end extends out of the lower sealing structure 40. A plurality of nozzles are provided on the water spray pipeline 61, and each nozzle is arranged at intervals along the axial direction of the rotating drum 20 and is all arranged downward. The water supply module 62 is connected to the protruding end of the water spray pipeline 61 and can supply water intermittently.
[0050] The spray structure 60 supplies water to the water spray pipe 61 through the water supply module 62. The water is converted into small droplets by the various nozzles as a binder, which are then sprayed onto the material at the bottom of the rotating drum 20. The rotation of the rotating drum 20 achieves granulation. The water spray pipe 61 is located inside the rotating drum 20 and above its axis. During the rotation of the rotating drum 20, the water spray pipe 61 remains stationary, thereby ensuring effective water spraying and granulation.
[0051] It should be noted that the water supply module 62 can be a water pump and a water tank for placing the water pump. This technology is existing technology and will not be described in detail here.
[0052] In some embodiments, the rotating drum 20 may be configured as follows: Figure 1 and Figure 2 The structure shown. Figure 1 and Figure 2 The inner wall of the rotating drum 20 is provided with a plurality of material blocking rings 21, which are spaced apart along the axis of the rotating drum 20. A granulation space is formed between any two adjacent material blocking rings 21. The material blocking rings 21 can extend the rolling time of the material, thereby ensuring the granulation effect.
[0053] In this embodiment, each nozzle is provided in one-to-one correspondence with each granulation space. This structure can ensure that the material in each granulation space is fully in contact with the powdered material during the rolling and extension process, thereby ensuring the granulation effect.
[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A rotary drum granulator for producing granular organic fertilizers, characterized in that: include: The base has a mounting platform on the top; a feeding hopper is provided on the mounting platform; The rotating drum is located above the mounting platform and is connected to the driving assembly provided on the mounting platform; the rotating drum is tilted, with the top end being the feeding end and the bottom end being the discharging end; An upper sealing structure is fixed on the base and rotatably connected to the feed end of the rotating drum, and is used to seal the feed end of the rotating drum; the upper sealing structure has a feeding port connected to the feeding hopper; The lower sealing structure is fixed on the base and is rotatably connected to the discharge end of the rotating drum for sealing the discharge end of the rotating drum; the lower sealing structure is provided with a discharge port.
2. The rotary drum granulator for producing granular organic fertilizer according to claim 1, wherein: The upper sealing structure comprises: A first bracket, fixed on the base; The first sealing cover has a first protruding end extending into the barrel cavity of the rotating barrel, and the first protruding end is rotatably connected to the inner wall of the rotating barrel through a bearing; the first sealing cover is fixed on the first bracket; the feeding port is located on the first sealing cover.
3. The rotary drum granulator for producing granular organic fertilizer according to claim 2, wherein: The lower sealing structure comprises: A second bracket is fixed on the base; The second sealing cover has a second protruding end extending into the barrel cavity of the rotating barrel, and the second protruding end is rotatably connected to the inner wall of the rotating barrel through a bearing; the second sealing cover is fixed on the second bracket; the discharge port is located on the second sealing cover.
4. The rotary drum granulator for producing granular organic fertilizer according to claim 3, wherein: A dust curtain is provided at the discharge port.
5. The rotary drum granulator for producing granular organic fertilizer according to claim 1, wherein: The drive assembly includes: There are two groups of carrying rollers, the two groups of carrying rollers are spaced apart, and each group of carrying rollers includes two rollers spaced apart; each roller is rotatably mounted on the mounting platform, and a rotation space is formed on each roller; There are two adapter rings, each of which is arranged in a one-to-one correspondence with each of the carrying rollers, and each of the adapter rings is arranged around the outer wall of the rotating drum and is in rolling contact with the corresponding rollers; The driving structure is arranged on the mounting platform and is used for driving the rotating drum to rotate.
6. The rotary drum granulator for producing granular organic fertilizer according to claim 5, characterized in that: The driving structure includes: A driving motor is fixedly mounted on the mounting platform; a gear coaxially connected to the output end of the drive motor; The gear ring is arranged around the outer circumference of the rotating cylinder and meshes with the gear.
7. The rotary drum granulator for producing granular organic fertilizer according to claim 1, wherein: The rotary drum granulator for producing granular organic fertilizer further comprises a spraying structure, which comprises: A water spray pipeline is located in the cylinder cavity of the rotating cylinder and is arranged parallel to the axis of the rotating cylinder and above the axis of the rotating cylinder. The two ends of the water spray pipeline are respectively fixed to the upper sealing structure and the lower sealing structure, and one end extends out of the lower sealing structure. The water spray pipeline is provided with a plurality of nozzles, each of which is arranged at intervals along the axis of the rotating cylinder and is arranged downward. The water supply module is connected to the protruding end of the water spray pipeline and is used for intermittent water supply.
8. The rotary drum granulator for producing granular organic fertilizer according to claim 7, characterized in that: A plurality of material blocking rings are provided on the inner wall of the rotating drum, and the material blocking rings are spaced apart along the axis of the rotating drum; a granulation space is formed between any two adjacent material blocking rings; Wherein, each of the nozzles is arranged in one-to-one correspondence with each of the granulation spaces.