Large granular urea feeding device

By combining the design of a circulating chain and a stepped feeding trough, the continuity and stability issues of the large-particle urea feeding device are solved, achieving efficient and reliable conveying and convenient maintenance of large-particle urea.

CN122009741APending Publication Date: 2026-05-12ANHUI SHUNFENG ECOLOGICAL FERTILIZER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI SHUNFENG ECOLOGICAL FERTILIZER CO LTD
Filing Date
2026-04-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional feeding equipment is difficult to adapt to the continuous and stable conveying of large urea particles, and is prone to material accumulation and blockage. In addition, the equipment is not stable and easy to maintain.

Method used

The system employs a circulating chain with hoppers and a stepped feeding trough. The hoppers move along the chain and gradually scoop up urea. Combined with a detachable and reinforced structure, this ensures the continuity and stability of the conveying process.

Benefits of technology

It enables continuous and stable feeding of large-particle urea, avoids accumulation and jamming problems, improves conveying efficiency and equipment reliability, and facilitates maintenance and replacement.

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Abstract

The invention relates to the technical field of urea processing, and discloses a large-particle urea feeding device which comprises a storage box and a feeding structure above the storage box, the feeding structure adopts a loop chain to be matched with evenly-distributed hoppers to achieve urea lifting and conveying, a material arranging groove with the side wall height gradually changing is formed in the storage box, and the material arranging groove is matched with the hoppers to complete urea scooping; the chains and the vertical plates are stably supported through the chain wheels, the hoppers and the supporting rods are reinforced and installed through the connecting rods with the threaded grooves, and the opening direction of the hoppers is consistent with the rotating direction of the chains. The device can effectively avoid accumulation and blockage during large-particle urea conveying, guarantees continuous and stable feeding process, has the characteristics of stable structure and convenience in maintenance, and is suitable for high-efficiency conveying operation of large-particle urea.
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Description

Technical Field

[0001] This invention relates to the field of urea processing, and in particular to a feeding device for large-particle urea. Background Technology

[0002] In fertilizer production and storage, large-particle urea, due to its large particle size and poor flowability, is prone to material accumulation and blockage in traditional feeding equipment. This not only affects conveying efficiency but also easily causes equipment wear and downtime. Existing bucket elevators are mostly designed for small-particle materials, with insufficient bucket structural stability, inconvenient disassembly and maintenance, and a lack of material handling structure adapted to large-particle urea, making it difficult to meet the requirements for continuous and stable feeding. Therefore, there is an urgent need for a high-efficiency feeding device adapted to the characteristics of large-particle urea. Therefore, this invention proposes a large-particle urea feeding device to solve the above problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a large-particle urea feeding device.

[0004] The present invention provides a large-particle urea feeding device with the following technical solution:

[0005] A large-particle urea feeding device includes a storage tank for placing urea, a feeding structure above the storage tank, the feeding structure including a chain with a loop structure, and several evenly distributed hoppers on the outside of the chain, the hoppers conveying urea from the storage tank upwards.

[0006] The storage bin is also equipped with a material feeding trough, the side wall of which gradually decreases in height along the displacement direction of the hopper.

[0007] Preferably, the material feeding trough has two side walls, and the width of the two side walls is greater than the diameter of the hopper.

[0008] Preferably, two sprockets are provided on the inner side of the chain, with the sprockets positioned near the storage bin and far away from the storage bin, and the two sprockets are located on the same vertical line. An upright plate is also provided on the outer side of the two sprockets for fixing their positions.

[0009] Preferably, the upright plate and the external structure are fixed to ensure the stability of the feeding structure.

[0010] Preferably, a coaxial connecting rod is fixedly connected to the shaft of the chain, and a threaded groove is provided at the end of the connecting rod so that the hopper can be added later.

[0011] Preferably, a support rod is welded to the outer wall of the connecting rod, and the end of the support rod is fixed to the hopper.

[0012] Preferably, the openings of all the hoppers are uniformly oriented clockwise or counterclockwise, consistent with the rotation direction of the chain.

[0013] Preferably, the number of material handling troughs is consistent with the number of hopper groups.

[0014] In summary, the present invention has at least one of the following beneficial technical effects:

[0015] By setting up a circulating chain with a hopper in conjunction with a stepped feeding trough, continuous and stable feeding of large granular urea is achieved, effectively avoiding the problems of accumulation and jamming of large granular urea during the conveying process. At the same time, the hopper adopts a detachable and reinforced structure, which not only ensures the stability of the conveying process, but also facilitates later maintenance and replacement, significantly improving the efficiency and reliability of large granular urea feeding operations. Attached Figure Description

[0016] Figure 1 It is the isometric drawing in Embodiment 1 of this application;

[0017] Figure 2 This is a structural diagram of the feeding component in Embodiment 1 of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Storage bin; 2. Feed trough; 3. Vertical plate; 4. Sprocket; 5. Chain; 6. Hopper; 7. Connecting rod; 71. Threaded groove; 8. Support rod. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 The present invention will be described in further detail below.

[0020] Example 1: Refer to Figure 1 - Figure 2 A large-particle urea feeding device includes a storage tank 1 for placing urea, and a feeding structure is arranged above the storage tank 1. The feeding structure includes a chain 5 with a loop structure, and several evenly distributed hoppers 6 are arranged on the outer side of the chain 5. The hoppers 6 convey the urea in the storage tank 1 upwards. The storage tank 1 is also equipped with a material sorting trough 2. The side wall of the material sorting trough 2 gradually decreases in height along the displacement direction of the hoppers 6, so that the hoppers 6 can gradually scoop up urea as they move with the chain 5, avoiding the accumulation and jamming of large-particle urea, while ensuring a stable amount of urea scooped up at one time.

[0021] The material feeding trough 2 has two side walls, and the width of the two side walls is greater than the diameter of the hopper 6, so that the hopper 6 can pass through the material feeding trough 2 smoothly without scraping or colliding with the side walls, ensuring the continuous conveying process.

[0022] Two sprockets 4 are installed on the inner side of the chain 5, positioned one near the storage bin 1 and the other away from it. The two sprockets 4 are on the same vertical line. A vertical plate 3 is installed on the outer side of the two sprockets 4 to fix their positions. The vertical plate 3 is fixed to the external structure to ensure the stability of the feeding structure, prevent the chain 5 from shifting or shaking during operation, and improve feeding accuracy.

[0023] A coaxial connecting rod 7 is fixedly connected to the shaft of chain 5. The end of the connecting rod 7 has a threaded groove 71, which allows the hopper 6 to be added or removed later, facilitating maintenance and replacement. A support rod 8 is also welded to the outer wall of the connecting rod 7. The end of the support rod 8 is fixed to the hopper 6. The cooperation between the connecting rod 7 and the support rod 8 improves the installation firmness of the hopper 6 and prevents the hopper 6 from falling off or deforming due to the impact of large urea particles.

[0024] The openings of all hoppers 6 are uniformly oriented clockwise or counterclockwise, consistent with the rotation direction of the chain 5. This ensures that the hoppers 6 can smoothly scoop up urea as they pass through the feed troughs 2. Upon reaching the upper end of the chain 5, they flip and pour the urea into the designated location, completing the feeding operation. The number of feed troughs 2 is consistent with the number of hoppers 6, allowing multiple hoppers 6 to simultaneously scoop urea, improving feeding efficiency and adapting to high-flow-rate urea conveying needs.

[0025] During operation, the drive sprocket 4 rotates, driving the chain 5 and the outer hopper 6 to circulate. After the hopper 6 enters the material feeding trough 2 along the chain 5, it gradually scoops up the large granular urea in the storage box 1 along the material feeding trough 2. After being conveyed upward to the upper position along the chain 5, the hopper 6 flips with the chain 5, pouring the internal urea into the subsequent process equipment, thus completing continuous feeding.

[0026] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-particle urea feeding device, characterized in that: It includes a storage tank for urea storage, and a feeding structure is provided above the storage tank. The feeding structure includes a chain (5) with a loop structure. Several evenly distributed hoppers (6) are provided on the outside of the chain (5). The hoppers (6) transport the urea in the storage tank (1) upward. The storage bin (1) is also equipped with a material sorting trough (2), and the height of the side wall of the material sorting trough (2) gradually decreases along the displacement direction of the hopper (6).

2. The large-particle urea feeding device according to claim 1, characterized in that: The material handling trough (2) is provided with two side walls, and the width of the two side walls is greater than the diameter of the hopper (6).

3. The large-particle urea feeding device according to claim 1, characterized in that: Two sprockets (4) are provided on the inner side of the chain (5). The sprockets (4) are positioned near the storage box (1) and far away from the storage box (1). The two sprockets (4) are located on the same vertical line. The outer sides of the two sprockets (4) are also provided with upright plates (3) for fixing their positions.

4. The large-particle urea feeding device according to claim 3, characterized in that: The upright plate (3) is fixed to the external structure to ensure the stability of the feeding structure.

5. The large-particle urea feeding device according to claim 1, characterized in that: A coaxial connecting rod (7) is fixedly connected to the shaft of the chain (5). A threaded groove (71) is opened at the end of the connecting rod (7) so that the hopper (6) can be subsequently installed.

6. The large-particle urea feeding device according to claim 5, characterized in that: A support rod (8) is also welded to the outer wall of the connecting rod (7), and the end of the support rod (8) is fixed to the hopper (6).

7. The large-particle urea feeding device according to claim 1, characterized in that: The openings of all the hoppers (6) are uniformly oriented clockwise or counterclockwise, consistent with the rotation direction of the chain (5).

8. The large-particle urea feeding device according to claim 6, characterized in that: The number of material handling troughs (2) and the number of hoppers (6) are consistent.