Fertilizer mixing, bagging and discharging device and method

Abstract

The invention discloses a fertilizer mixing, bagging and blanking device and method, and relates to the technical field of fertilizer production. The fertilizer mixing, bagging and blanking device comprises a stock bin, a pipe bundle distribution assembly is installed in the stock bin and comprises a plurality of pipelines which are vertically arranged, and a bagging opening is formed in the bottom of the stock bin. The problems that in the production process of the blended fertilizer, urea, diamine, potash fertilizer and other raw materials are separated in the parabolic motion and free falling body process of throwing of a conveying belt due to weight and shape differences, the proportion of fertilizer components in a stock bin is uneven, the components of finished products at bagging openings in the two sides are inconsistent, and then the use effect of the product is affected are solved.

Description

Technical Field

[0001] This invention relates to the field of fertilizer production technology, and in particular to a fertilizer blending, bagging, and dispensing device and method. Background Technology

[0002] In the field of blended fertilizer production, to meet the needs of crops for multiple nutrients, it is usually necessary to mix different types of raw materials such as urea, diamine, and potash fertilizer in a specific ratio before bagging and selling them. Currently, the industry commonly uses conveyor belts to transport the blended fertilizer. After being thrown out from one end of the conveyor belt, the fertilizer falls directly into the silo, and is finally bagged through the bagging opening at the bottom of the silo.

[0003] However, the aforementioned traditional conveying and bagging methods have significant technical defects. The core problem lies in the severe segregation that easily occurs during the fertilizer's descent. Specifically, the raw materials in blended fertilizers have inherent differences in weight and shape: urea is the lightest and is in the form of small spherical particles, potash fertilizer is the heaviest and is flat, and diamine has a weight in between. When the fertilizer is thrown from the end of the conveyor belt, due to the parabolic motion and the differences in gravity, air resistance, and inertia of the different raw materials, the light, spherical urea particles fall the farthest, the heavy, flat potash fertilizer particles fall the shortest, and the medium-weight diamine particles are distributed in between, forming the first segregation. Subsequently, during the free fall of the fertilizer, the different accelerations of particles of different weights and shapes further exacerbate the separation, resulting in the dual problem of "parabolic separation and free fall separation."

[0004] This segregation phenomenon directly leads to a situation where, after the fertilizer falls into the silo, the raw materials cannot maintain their initial mixing ratio, exhibiting a clear stratified distribution. Even if the weight of each bag of fertilizer is ensured to be consistent during bagging, the actual proportions of urea, diamine, and potash fertilizer within the bags are severely uneven, with some bags containing a higher proportion of light raw materials and others containing an excessively high proportion of heavy raw materials. This problem not only reduces the product quality stability of blended fertilizers but also leads to an imbalance of nutrients absorbed by crops, failing to achieve the expected fertilization effect and affecting crop yield and quality. Furthermore, segregation can cause differences in fertilizer composition in different areas of the silo, resulting in inconsistent fertilizer composition at both bag openings, further affecting product qualification rates, causing economic losses to production enterprises, and hindering the high-quality development of the blended fertilizer industry.

[0005] Currently, existing technologies lack effective feeding devices that can solve the aforementioned segregation problem. Traditional silos only serve a storage and diversion function, failing to effectively constrain the fertilizer's falling trajectory or alleviate the separation tendency of different raw materials. Therefore, developing a feeding device that can suppress fertilizer fall segregation and ensure uniform mixing has become an urgent technical need in this field. Summary of the Invention

[0006] To address the problem that in the production of blended fertilizers, raw materials such as urea, diamine, and potash fertilizer, due to differences in weight and shape, segregate during the parabolic motion and free fall of the conveyor belt, resulting in uneven fertilizer composition ratios in the silo and inconsistent finished product composition at both sides of the bag opening, thus affecting the product's performance, the present invention aims to provide a fertilizer blending bagging and unloading device and method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a fertilizer blending and bagging device, comprising a hopper, wherein a tube bundle material distribution assembly is installed inside the hopper, the tube bundle material distribution assembly includes several vertically arranged pipes, and a bagging opening is provided at the bottom of the hopper.

[0008] Preferably, a discharge control valve is installed in the bag opening.

[0009] Preferably, the bag openings are arranged symmetrically with two openings, and the shell between the two openings is arranged in an inverted V shape.

[0010] Preferably, the tubular fabric assembly includes a receiving trough installed inside the hopper, several pipes vertically and fixedly connected to the bottom of the receiving trough, the top ends of the pipes being flush with the bottom of the receiving trough, and an integrated plate being fixedly connected to the outer wall of the several pipes near the bottom.

[0011] Preferably, the tube bundle fabric assembly is arranged in two parts, one above the other, the pipe is made of rigid material, and the receiving trough is fixedly installed on the inner wall of the silo.

[0012] Preferably, the top port of the receiving trough is positioned higher than the top port of the hopper, and two symmetrically arranged guide rods are slidably connected to the side wall of the receiving trough. The two ends of the two guide rods are fixedly installed on the inner wall of the hopper, and a drive mechanism for driving the receiving trough to slide on the guide rods is installed on the side wall of the hopper.

[0013] Preferably, the drive mechanism includes a motor fixedly installed on the side wall of the hopper, a drive disk is shaft-connected to the output end of the motor, a drive shaft is eccentrically fixedly connected to the top end face of the drive disk, a rectangular plate is fixedly connected to the side wall above the top port of the hopper in the receiving trough, an elongated hole is opened on the top surface of the rectangular plate, and the outer wall of the drive shaft is slidably connected to the inner wall of the elongated hole.

[0014] Preferably, the pipe is made of stretchable rubber tubing and is tapered from top to bottom. An electric push rod is fixedly installed on the top of the receiving trough, and the bottom of the telescopic end of the electric push rod is fixedly connected to the top surface of the integrated plate.

[0015] Preferably, a partition is fixedly connected to the top of the inverted V-shaped section between the two bag openings, and the two side walls of the partition are fixedly connected to the two inner side walls of the hopper.

[0016] A method for using a fertilizer blending and bagging dispensing device includes the following steps:

[0017] S1, place one end of the fertilizer conveyor belt directly above the tube bundle fabric assembly.

[0018] S2, the mixed fertilizer is conveyed by a conveyor belt, and the fertilizer falls from one end of the conveyor belt onto the tube bundle cloth assembly to limit the fertilizer from falling.

[0019] S3, the fertilizer is distributed to the bottom of the silo via the tube bundle distribution assembly.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0021] 1. This invention uses a tube bundle fabric assembly to forcibly confine the fertilizer falling from the conveyor belt within the pipe, eliminating the free fall space for fertilizer particles of different weights and shapes, avoiding separation caused by differences in parabolic motion, ensuring the uniformity of the component ratio of the blended fertilizer product, and improving the thorough mixing of the fertilizer after bagging.

[0022] 2. This invention, by setting an electric push rod at the top of the receiving trough, in conjunction with a tapered pipe made of stretchable rubber, allows the integrated plate to move up and down via the extension and retraction of the electric push rod, thereby adjusting the pipe length and the height of the lower outlet. It can flexibly adjust the dropping height according to the real-time height of fertilizer accumulation in the hopper, ensuring that the bottom end of the pipe is always close to the top surface of the fertilizer accumulation. This avoids secondary segregation caused by excessive dropping and can adapt to changes in material level at different bagging stages, further optimizing the uniformity of material distribution.

[0023] 3. The present invention uses a reciprocating sliding drive structure of the receiving trough to make the fertilizer drop position change evenly. Combined with the inverted V-shaped diversion structure at the bottom of the silo, it realizes the uniform distribution and diversion of fertilizer in the silo, effectively preventing the granules from being separated by their own weight due to local accumulation of fertilizer, and ensuring the consistency of fertilizer composition throughout the silo.

[0024] 4. This invention drives the receiving trough and the entire pipe to slide back and forth through a driving mechanism. Combined with the pipe structure made of stretchable rubber material, the fertilizer granules can obliquely collide with other granules as they fall into the pipe. At the same time, the impacted granules are ejected obliquely upward by the elastic inner wall of the pipe, which further disrupts the movement trajectory of the granules, prolongs the contact and mixing time of the granules, and effectively slows down the falling speed. This fundamentally avoids the separation of granules of different weights due to differences in acceleration, ensuring that each granule falls in a fully mixed state. Attached Figure Description

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] Figure 1 This is a side view of the overall structure of the present invention;

[0027] Figure 2 This is a top view of the material receiving trough of the present invention.

[0028] Figure 3 This is a schematic diagram of the drive mechanism of the present invention.

[0029] In the diagram: 1. Hopper; 11. Bag opening; 12. Discharge control valve; 2. Tube bundle fabric assembly; 21. Pipe; 22. Receiving trough; 23. Integrated plate; 24. Guide rod; 25. Electric push rod; 3. Drive mechanism; 31. Motor; 32. Drive disc; 33. Drive shaft; 34. Rectangular plate; 35. Oblong hole; 4. Partition. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0031] Please see Figures 1 to 3 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0032] Example 1 discloses a fertilizer blending and bagging device, including a hopper 1. The hopper 1 is made of stainless steel and has a rectangular cross-section, used to store the blended fertilizer.

[0033] The silo 1 is equipped with a tube bundle distribution assembly 2, which disperses the delivered fertilizer to prevent the separation of particles of different sizes or weights during the concentrated dropping process, thus avoiding the re-separation of the mixed fertilizer and reducing the uniformity of the mixture. Specifically, the tube bundle distribution assembly 2 includes several vertically arranged pipes 21. In this embodiment, there are several pipes 21 arranged close together in the upper-middle area inside the silo 1.

[0034] The tube bundle fabric assembly 2 also includes a receiving trough 22 installed inside the hopper 1. The receiving trough 22 is a rectangular trough structure with an open top and a closed bottom, and its material is also stainless steel. Several pipes 21 are vertically fixedly connected to the bottom of the receiving trough 22. The connection between the pipes 21 and the receiving trough 22 is sealed by welding to prevent fertilizer from leaking out from the gaps. The top end of the pipes 21 is flush with the bottom of the receiving trough 22. This arrangement allows fertilizer falling into the receiving trough 22 to smoothly enter each pipe 21, preventing fertilizer from accumulating in the receiving trough 22.

[0035] The bottom of the hopper 1 is provided with a bagging opening 11, which is used to attach fertilizer packaging bags and fill the bags with fertilizer. A discharge control valve 12 is installed in the bagging opening 11. The discharge control valve 12 is an electromagnetic control valve, which can be precisely controlled by the control system to open and close the valve, thereby adjusting the discharge speed to meet different bagging requirements.

[0036] The bag openings 11 are arranged symmetrically, and the shell between the two bag openings 11 is arranged in an inverted V shape. The inverted V-shaped shell is welded from stainless steel plate, and its apex faces the inside of the hopper 1. It can guide the fertilizer at the bottom of the hopper 1 to flow into the two bag openings 11, avoid the fertilizer from accumulating at the bottom of the hopper 1, and ensure smooth discharge.

[0037] A partition 4 is fixedly connected to the top of the inverted V-shaped area between the two bag openings 11. The two side walls of the partition 4 are fixedly connected to the two inner side walls of the hopper 1, dividing the interior into two compartments.

[0038] In Example 2, the pipe 21 is made of rigid stainless steel, but it can also be made of rigid plastic. The pipe bundle distribution assembly (2) is arranged in two parts, one above the other, and the receiving groove (22) is fixedly installed on the inner wall of the silo (1). This makes the bottom of the lower pipe bundle distribution assembly (2) closer to the bottom of the silo (1), increasing the falling path in the pipe 21 and effectively limiting the mixing of fertilizer from being thrown down, instead dispersing and confining it in each pipe 21.

[0039] Example 3 differs from Example 2 in that the installation method of the receiving trough 22 is different; the rest of the structure is exactly the same as in Example 1. The top port of the trough 22 is set higher than the top port of the hopper 1 to facilitate receiving fertilizer conveyed by the conveyor belt above. Two symmetrically arranged guide rods 24 are slidably connected to the side wall of the receiving trough 22. The guide rods 24 are optical shafts, and their two ends are fixed to the inner wall of the hopper 1 by bolts. A sliding bearing is installed at the connection between the guide rods 24 and the receiving trough 22 to reduce sliding friction and allow the receiving trough 22 to slide smoothly.

[0040] A drive mechanism 3 is installed on the side wall of the hopper 1 to drive the receiving trough 22 to slide on the guide rod 24. The drive mechanism 3 includes a motor 31 fixedly installed on the side wall of the hopper 1. The motor 31 is a servo motor, which has the advantages of precise speed regulation and stable operation. The motor 31 is fixed to the outer side wall of the hopper 1 by a motor bracket. The output end of the top of the motor 31 is connected to a drive disk 32 through a coupling. The drive disk 32 is a circular steel plate, and its center is fixed coaxially with the output shaft of the motor 31.

[0041] A drive shaft 33 is eccentrically fixed to the top end face of the drive disc 32. The drive shaft 33 has a cylindrical structure, and its axis is parallel to but does not coincide with the axis of the drive disc 32. A rectangular plate 34 is fixedly welded to the side wall of the receiving trough 22 above the top port of the hopper 1. An elongated hole 35 is opened on the top surface of the rectangular plate 34, and the length direction of the elongated hole 35 is perpendicular to the axis direction of the guide rod 24. The outer wall of the drive shaft 33 is slidably connected to the inner wall of the elongated hole 35, and a wear-resistant sleeve is also fitted on the outer wall of the drive shaft 33 to reduce wear during sliding.

[0042] When motor 31 starts, drive disc 32 rotates accordingly, and eccentrically positioned drive shaft 33 slides within elongated hole 35, simultaneously driving rectangular plate 34 to reciprocate linearly along the axis of guide rod 24, thereby driving the material receiving trough 22 and pipe 21 to reciprocate. This arrangement causes the material drop position of pipe 21 to continuously change, further improving the uniformity of fertilizer dispersion within silo 1 and preventing localized accumulation.

[0043] Example 4 is an improvement on Example 3. The pipe 21 is made of stretchable rubber tube and is tapered from top to bottom, that is, the inner diameter of the upper end of the pipe 21 is larger than the inner diameter of the lower end. This design can slow down the speed at which the fertilizer falls.

[0044] An electric actuator 25 is fixedly installed on the top of the receiving trough 22. The electric actuator 25 is an industrial-grade electric actuator, with its fixed end bolted to the top surface of the receiving trough 22. The bottom of the telescopic end of the electric actuator 25 is fixedly connected to the top surface of the integrated plate 23 by bolts. By controlling the extension and retraction of the electric actuator 25, the integrated plate 23 can be moved up and down, thereby driving the stretchable rubber pipe 21 to extend and deform, changing the length of the pipe 21 and the height of its lower outlet. This configuration allows for flexible adjustment of the discharge height according to the accumulation height of fertilizer in the hopper 1, ensuring that the bottom end of the pipe 21 is always close to the top surface of the fertilizer accumulation.

[0045] In this embodiment, during the feeding process, the receiving trough 22 and the pipe 21 are driven to reciprocate and slide as a whole by the driving mechanism 3. When the fertilizer passes through the pipe 21, it can obliquely impact the fertilizer particles, so that the impacted fertilizer particles are ejected obliquely upward by the elastic oblique inner wall of the pipe 21, further slowing down the falling speed and ensuring that each particle falls in a fully mixed state.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A fertilizer blending and bagging dispensing device, comprising a hopper (1), characterized in that: The silo (1) is equipped with a tubular fabric assembly (2), which includes several vertically arranged pipes (21). The bottom of the silo (1) is provided with a bag opening (11).

2. The fertilizer blending, bagging, and dispensing device according to claim 1, characterized in that: A discharge control valve (12) is installed in the bag opening (11).

3. The fertilizer blending, bagging, and dispensing device and method according to claim 2, characterized in that: The bag openings (11) are arranged symmetrically in two places, and the shell between the two bag openings (11) is arranged in an inverted V shape.

4. The fertilizer blending, bagging, and dispensing device according to claim 3, characterized in that: The tube bundle fabric assembly (2) includes a receiving groove (22) installed inside the hopper (1), and several pipes (21) are vertically fixedly connected to the bottom of the receiving groove (22). The top end of the pipes (21) is flush with the bottom of the receiving groove (22), and several pipes (21) are fixedly connected to an integrated plate (23) near the bottom of the outer wall.

5. A fertilizer blending and bagging dispensing device according to claim 4, characterized in that: The tube bundle fabric assembly (2) is arranged in two parts, one above the other. The pipe (21) is made of rigid material. The receiving groove (22) is fixedly installed on the inner wall of the silo (1).

6. The fertilizer blending, bagging, and dispensing device according to claim 4, characterized in that: The top port of the receiving trough (22) is set higher than the top port of the hopper (1). Two guide rods (24) are symmetrically arranged and slide through the side wall of the receiving trough (22). The two ends of the two guide rods (24) are fixedly installed on the inner wall of the hopper (1). The side wall of the hopper (1) is equipped with a driving mechanism (3) for driving the receiving trough (22) to slide on the guide rods (24).

7. A fertilizer blending, bagging, and dispensing device according to claim 4, characterized in that: The drive mechanism (3) includes a motor (31) fixedly installed on the side wall of the hopper (1). The output end of the motor (31) is shaft-connected to a drive disk (32). The top end face of the drive disk (32) is eccentrically fixedly connected to a drive shaft (33). The receiving groove (22) is located on the side wall above the top port of the hopper (1) and a rectangular plate (34) is fixedly connected. The top surface of the rectangular plate (34) is provided with an elongated hole (35). The outer wall of the drive shaft (33) and the inner wall of the elongated hole (35) are slidably connected.

8. A fertilizer blending, bagging, and dispensing device according to claim 7, characterized in that: The pipe (21) is made of stretchable rubber tube and is tapered from top to bottom. An electric push rod (25) is fixedly installed on the top of the receiving trough (22), and the bottom of the telescopic end of the electric push rod (25) is fixedly connected to the top surface of the integrated plate (23).

9. A fertilizer blending, bagging, and dispensing device according to claim 3, characterized in that: A partition (4) is fixedly connected to the top of the inverted V-shaped section between the two bag openings (11), and the two side walls of the partition (4) are fixedly connected to the two side inner walls of the hopper (1).

10. A method of using a fertilizer blending, bagging, and dispensing device, characterized in that, The fertilizer blending and bagging dispensing device according to any one of claims 1-9 includes the following steps: S1, place one end of the fertilizer conveyor belt directly above the tube bundle fabric assembly (2). S2, the mixed fertilizer is conveyed by the conveyor belt, and the fertilizer falls from one end of the conveyor belt onto the tube bundle cloth assembly (2) to limit the fertilizer from falling. S3, fertilizer is distributed to the bottom of the silo (1) via the tube bundle distribution assembly (2).

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