Automatic mixing and packaging device for fertilizer production line

Abstract

The utility model discloses an automatic mixing and packing device for fertilizer production line belongs to mixing and packing technical field. It mainly includes multiple sets of dynamic batching machine, and the dynamic batching machine below is fixed with the conveyer belt no.

Description

Technical Field

[0001] This utility model belongs to the field of mixing and packaging technology, and more specifically, it relates to an automatic mixing and packaging device for fertilizer production lines. Background Technology

[0002] The automatic mixing and packaging device for fertilizer production lines is mainly used in the large-scale production of compound fertilizers, organic fertilizers and other fertilizers. It can automatically complete the metering and mixing of various raw materials according to the preset fertilizer formula, and then bag, seal and label the uniformly mixed finished fertilizer according to the set weight. The whole process does not require a lot of manual intervention and is a key piece of equipment connecting fertilizer raw material processing and finished product delivery.

[0003] Chinese Patent Publication No. CN118079753A discloses a mixing device for compound fertilizer processing, including a shell and a scraping mechanism. The shell is rotatably arranged around a first direction, and the scraping mechanism is rotatably installed inside the shell. The scraping mechanism includes two scrapers and two cutters. By setting the scraping mechanism inside the shell, if the compound fertilizer adhering to the inner wall of the shell is small, the scrapers can directly scrape off the compound fertilizer adhering to the inner wall of the shell.

[0004] The device also has the following problems in the later use: the rotation of the outer shell drives the fertilizer to be mixed, but when the drum-type mixing equipment is faced with mixed fertilizer with a particle size difference of more than 3 times, it is easy to cause local accumulation due to the "particle grading effect" (large particles sink and small particles float) during stirring. Small particles may also adhere to the surface of large particles to form "pseudo-adhesion". Therefore, the mixing equipment is required to have a high mixing efficiency in the vertical direction. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automatic mixing and packaging device for fertilizer production line. The device uses a mixing mechanism and an agitator to agitate the fertilizer axially to promote axial mixing. Radial mixing of the fertilizer in the tank is achieved through a radial diffusion plate and two agglomerating hoppers.

[0006] An automatic mixing and packaging device for a fertilizer production line includes multiple sets of dynamic batching machines. A first conveyor belt is fixedly installed below each dynamic batching machine. A mixing mechanism is fixedly installed below the first conveyor belt. A second conveyor belt is fixedly installed at the bottom of the mixing mechanism. A metering hopper is fixedly installed below the second conveyor belt. A third conveyor belt is fixedly installed at the bottom of the metering hopper. The mixing mechanism includes a tank body. A fixed beam is fixedly connected to the top of the tank body, and an agitator is fixedly installed on the fixed beam. A discharge port is fixedly installed on the inner side of the bottom of the tank body, and an electric valve is fixedly installed on the discharge port. Support legs are fixedly connected to the outer side of the bottom of the tank body. An inlet extends upward from the inner wall of the bottom of the tank body. A feeding pipe is fixedly connected to the top of the inlet, and a gathering feeding hopper is fixedly installed on the top of the feeding pipe. A gathering feeding hopper is fixedly installed on the top of the gathering feeding hopper, and a radial diffuser is fixedly installed on the top of the gathering feeding hopper.

[0007] Preferably, the agitation assembly includes a drive motor, the bottom of which is fixedly connected to a fixed beam, and the output shaft of the drive motor is fixedly connected to a transmission shaft. A small screw is fixedly installed on the bottom outer wall of the transmission shaft, a medium screw is fixedly installed on the top of the small screw, a large screw is fixedly installed on the top of the medium screw, and a diffusion wheel is fixedly installed on the top of the large screw.

[0008] Preferably, the radial diffusion disk is fixedly provided with a second feeding pipe at its center, and a first feeding pipe, a second feeding pipe, and a third feeding pipe extend downward from the outer side of the radial diffusion disk.

[0009] Preferably, the center of the gathering and feeding hopper is fixedly provided with a second feeding port, the top of the second feeding port is fixedly connected to a third feeding pipe, the top of the third feeding pipe is fixedly connected to the second feeding pipe, and multiple sets of openings are fixedly opened on the outer side of the gathering and feeding hopper.

[0010] Preferably, the center of the gathering and feeding hopper two is fixedly provided with a feeding port three, the top of the feeding port three is fixedly connected to a feeding pipe four, the top of the feeding pipe four is fixedly connected to the bottom of the gathering and feeding hopper one, the bottom of the gathering and feeding hopper two is fixedly connected to the feeding pipe one, and multiple sets of openings two are fixedly opened on the outer side of the gathering and feeding hopper two.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a mixing mechanism, the stirring component axially stirs the fertilizer, promoting axial mixing and reducing the local accumulation caused by the particle grading effect of fertilizers with large particle size differences. The radial diffusion plate and the first and second gathering hoppers realize the radial mixing of fertilizer in the tank, making the large-volume, large-diameter mixing tank more thorough and uniform for the compound fertilizer. 2. By setting up a convergence hopper, it is ensured that fertilizers at different heights can participate in the axial mixing operation in real time. This overcomes the problem that when traditional axial screws process mixed feed, they can only push the feed at the bottom to the top, and only the fertilizers in the top and bottom local areas can be mixed in real time, resulting in extremely low mixing efficiency. 3. By setting up a radial diffusion disk in conjunction with a diffusion wheel, the fertilizer is radially diffused and mixed, improving the mixing efficiency. By setting multiple sets of feed pipes of different lengths on its outer side, the freshly mixed fertilizer can be evenly distributed to different heights inside the tank, further ensuring the axial mixing efficiency of the fertilizer inside the large-volume tank. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the hybrid mechanism; Figure 3 This is a schematic diagram of the internal structure of the hybrid mechanism; Figure 4 This is a schematic diagram of the overall structure of the agitator assembly; Figure 5 This is a schematic diagram of the exploded structure of the hybrid mechanism; Figure 6 This is a schematic diagram of the structure of the agitator, radial diffuser, and two gathering hoppers.

[0013] In the diagram: 1. Dynamic batching machine; 2. Conveyor belt 1; 3. Mixing mechanism; 301. Tank; 301A. Fixed beam; 301B. Discharge port; 301C. Electric valve; 301D. Support leg; 301E. Feed inlet 1; 301F. Feeding pipe 1; 302. Agitator assembly; 302A. Drive motor; 302B. Drive shaft; 302C. Diffusion wheel; 302D. Large screw; 302E. Medium screw; 302F. Small screw. 303, Radial diffuser; 303A, Feeding pipe II; 303B, Discharge pipe I; 303C, Discharge pipe II; 303D, Discharge pipe III; 304, Gathering feeding hopper I; 304A, Feed inlet II; 304B, Feeding pipe III; 304C, Opening I; 305, Gathering feeding hopper II; 305A, Feed inlet III; 305B, Feeding pipe IV; 305C, Opening II; 4, Conveyor belt II; 5, Metering hopper; 6, Conveyor belt III. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings: The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0015] like Figure 1 , Figure 2 and Figure 3 As shown, an automatic mixing and packaging device for a fertilizer production line includes multiple sets of dynamic batching machines 1. The dynamic batching machine 1 is an automated device used in industrial production to continuously and precisely control the mixing of multiple materials according to a preset ratio. Its core advantage lies in breaking the intermittent mode of traditional static batching, which involves "weighing first and then mixing," and realizing "simultaneous conveying, weighing, and batching." The dynamic continuous operation is widely used in industries such as chemical, food, metallurgy, and feed that require the mixing of multi-component materials. A conveyor belt 2 is fixedly installed below the dynamic batching machine 1. Each fertilizer is transported to the mixing mechanism 3 through the conveyor belt 2 for mixing. The mixing mechanism 3 is fixedly installed below the conveyor belt 2. By setting the mixing mechanism 3, the stirring component 302 stirs the fertilizer axially, promotes axial mixing, and reduces the local accumulation caused by the particle grading effect of fertilizers with large particle size differences. The radial diffusion plate 303 and the two gathering hoppers 304 and 305 realize the radial mixing of fertilizer in the tank 301, so that the large-volume, large-diameter mixing tank can mix the compound fertilizer more thoroughly and evenly.

[0016] The bottom of the mixing mechanism 3 is fixedly equipped with a second conveyor belt 4. The mixed fertilizer is discharged from the outlet 301B, falls into the second conveyor belt 4, and enters the metering hopper 5 for precise weighing and packaging. The metering hopper 5 is fixedly installed below the second conveyor belt 4. The metering hopper 5 is a core piece of equipment in industrial production used for precise weight calculation, temporary storage and unloading of bulk materials. It is widely used in chemical, grain, feed and other industries. It is often used in conjunction with conveying equipment to realize the automated process of "feeding-measuring-unloading". The bottom of the metering hopper 5 is also fixedly equipped with a pneumatic gripper mechanism, which can cooperate with workers to temporarily clamp the packaging bag. After the metering hopper 5 discharges a certain amount of fertilizer into the packaging bag, the pneumatic gripper mechanism releases, and the packaging bag continues to move backward under the transport of the third conveyor belt 6 for subsequent sealing operations to complete the packaging of fertilizer.

[0017] A conveyor belt 6 is fixedly installed at the bottom of the metering hopper 5. The mixing mechanism 3 includes a tank 301, a fixed beam 301A is fixedly connected to the top of the tank 301, an agitator 302 is fixedly installed on the fixed beam 301A, a discharge port 301B is fixedly provided on the inner side of the bottom of the tank 301, and an electric valve 301C is fixedly installed on the discharge port 301B. The discharge of compound fertilizer in the tank 301 is controlled by the electric valve 301C. A support leg 301D is fixedly connected to the outer side of the bottom of the tank 301. The bottom inner wall of the tank 301 extends upward with a feed inlet 301E. Since the bottom of the tank 301 is conical, it is easy for fertilizer to gather in the middle. The fertilizer is pushed upward by the stirring component 302 through the feed inlet 301E, which promotes the mixing of fertilizer in different axes. The top of the feed inlet 301E is fixedly connected to the feeding pipe 301F. The top of the feeding pipe 301F is fixedly installed with a gathering feeding hopper 305. The top of the gathering feeding hopper 305 is fixedly installed with a gathering feeding hopper 304. The first and second hoppers, 304 and 305, are positioned at different heights within the tank 301 to prevent the excessive height of the tank 301 from affecting the axial mixing of materials located in the middle of the tank. By setting up the hoppers, it is ensured that fertilizers at different heights can participate in the axial mixing operation in real time. This overcomes the limitations of traditional axial screw feed processing, which only pushes the feed at the bottom to the top, resulting in only two localized areas of fertilizer being mixed in real time, leading to extremely low mixing efficiency. A radial diffusion plate 303 is fixedly installed on the top of the first hopper 304. By setting up the radial diffusion plate 303, in conjunction with the diffusion wheel 302C, the fertilizer is radially diffused and mixed, improving the mixing efficiency. By setting multiple sets of discharge pipes of different lengths on its outer side, the freshly mixed fertilizer can be evenly distributed to different heights within the tank 301, further ensuring the axial mixing efficiency of the fertilizer inside the large-volume tank 301.

[0018] like Figure 4As shown, the stirring assembly 302 includes a drive motor 302A. The bottom of the drive motor 302A is fixedly connected to the fixed beam 301A. The output shaft of the drive motor 302A is fixedly connected to a transmission shaft 302B. A small screw 302F is fixedly installed on the bottom outer wall of the transmission shaft 302B. A medium screw 302E is fixedly installed on the top of the small screw 302F. A large screw 302D is fixedly installed on the top of the medium screw 302E. A diffusion wheel 302C is fixedly installed on the top of the large screw 302D. The small screw 302F has the smallest diameter and works with the feed inlet 301E and the feed pipe 301F to push the fertilizer at the bottom of the tank 301 upwards. The medium screw 302E has a larger diameter and works with the feed inlet 305A and the feed pipe 305B. It pushes the material gathered in the feed hopper 305 upwards and also pushes the fertilizer pushed up from the bottom of the tank 301 upwards. Because the diameter of the medium screw 302E is larger than that of the small screw 302F, at the same rotational speed, the medium screw 302E... The amount of fertilizer pushed upward by screw 302E is much greater than that pushed upward by screw 302F. Screw 302D has the largest diameter, and on the one hand, it continues to push the material in hopper 1 304 upward, and on the other hand, it continues to push the fertilizer pushed up from the bottom of tank 301 and hopper 2 305 upward. Similarly, the amount of fertilizer pushed upward by screw 302D is greater than that pushed upward by screw 302E, thus ensuring that the fertilizer at all heights can be continuously axially stirred and mixed under the rotation of agitation component 302.

[0019] like Figure 6 As shown, a feed pipe 2 303A is fixedly installed at the center of the radial diffuser 303. Feed pipes 1 303B, 2 303C, and 3 303D extend downwards from the outer side of the radial diffuser 303. Feed pipe 3 303D is the longest and cooperates with both openings 1 304C and 2 305C to directly transport the fertilizer from the top of the tank 301 to the bottom of the tank 301. Feed pipe 2 303C is of medium length and cooperates with opening 1 304C to directly transport the fertilizer from the top of the tank 301 to the gathering feed hopper 2 305. Feed pipe 1 303B is the shortest and directly transports the fertilizer from the top of the tank 301 to the gathering feed hopper 1 304, ensuring uniform mixing of the fertilizer in the axial direction.

[0020] like Figure 5 As shown, a feed inlet 304A is fixedly provided in the center of the gathering and feeding hopper 304. A feeding pipe 304B is fixedly connected to the top of the feed inlet 304A. The top of the feeding pipe 304B is fixedly connected to the feeding pipe 303A. Multiple sets of openings 304C are fixedly opened on the outside of the gathering and feeding hopper 304.

[0021] The two-stage feeding hopper 305 is fixedly provided with a three-stage feeding port 305A at its center. The top of the three-stage feeding port 305A is fixedly connected to a four-stage feeding pipe 305B. The top of the four-stage feeding pipe 305B is fixedly connected to the bottom of the one-stage feeding hopper 304. The bottom of the two-stage feeding hopper 305 is fixedly connected to the one-stage feeding pipe 301F. Multiple sets of openings 305C are fixedly opened on the outer side of the two-stage feeding hopper 305.

[0022] Working principle of hybrid mechanism 3: After the fertilizers of various components are poured into the tank 301, the drive motor 302A is started. The fertilizers at the bottom of the tank 301, the fertilizers in the second gathering hopper 305, and the fertilizers in the first gathering hopper 304 are pushed upward by the stirring component 302 from the first feed port 301E, the third feed port 305A, and the second feed port 304A, respectively. Under the rotation of the diffusion wheel 302C, the fertilizers are radially diffused in all directions and enter the tank 301 at different heights through different discharge pipes, thus completing the uniform axial diffusion.

[0023] This invention utilizes a mixing mechanism 3 and an agitator 302 to axially agitate the fertilizer, promoting axial mixing and reducing localized accumulation caused by particle grading effects in fertilizers with large particle size differences. Radial mixing of the fertilizer within the tank 301 is achieved through a radial diffusion plate 303 and two aggregating hoppers 304 and 305, resulting in more thorough and uniform mixing of the compound fertilizer in the large-volume, large-diameter mixing tank. The aggregating hoppers ensure that fertilizers at different heights can participate in the axial mixing operation in real time, overcoming the limitations of traditional axial screw feeders, which only push feed from the bottom to the top, resulting in very low mixing efficiency due to only two localized areas (top and bottom). The radial diffusion plate 303, in conjunction with a diffusion wheel 302C, performs radial diffusion mixing of the fertilizer, improving mixing efficiency. Multiple sets of discharge pipes of different lengths on its outer side can evenly distribute the freshly mixed fertilizer to different heights within the tank 301, further ensuring efficient axial mixing of the fertilizer within the large-volume tank 301.

Claims

1. An automatic mixing and packaging device for a fertilizer production line, comprising multiple sets of dynamic batching machines, a first conveyor belt fixedly disposed below the first conveyor belt, a mixing mechanism fixedly disposed below the first conveyor belt, a second conveyor belt fixedly disposed at the bottom of the mixing mechanism, a metering hopper fixedly disposed below the second conveyor belt, and a third conveyor belt fixedly disposed at the bottom of the metering hopper, characterized in that: The mixing mechanism includes a tank body, a fixed beam fixedly connected to the top of the tank body, an agitator fixedly installed on the fixed beam, a discharge port fixedly provided on the inner side of the bottom of the tank body, an electric valve fixedly installed on the discharge port, a support leg fixedly connected to the outer side of the bottom of the tank body, a feed inlet extending upward from the inner wall of the bottom of the tank body, a feeding pipe fixedly connected to the top of the feeding inlet, a gathering feeding hopper two fixedly installed on the top of the feeding pipe one, a gathering feeding hopper one fixedly installed on the top of the gathering feeding hopper two, and a radial diffuser plate fixedly installed on the top of the gathering feeding hopper one.

2. The automatic mixing and packaging device for a fertilizer production line according to claim 1, characterized in that: The agitation assembly includes a drive motor, the bottom of which is fixedly connected to a fixed beam. The output shaft of the drive motor is fixedly connected to a transmission shaft. A small screw is fixedly installed on the bottom outer wall of the transmission shaft. A medium screw is fixedly installed on the top of the small screw. A large screw is fixedly installed on the top of the medium screw. A diffusion wheel is fixedly installed on the top of the large screw.

3. The automatic mixing and packaging device for a fertilizer production line according to claim 1, characterized in that: The radial diffusion disk is fixedly provided with a feeding pipe 2 at its center, and feeding pipe 1, feeding pipe 2 and feeding pipe 3 extend downward from the outer side of the radial diffusion disk respectively.

4. The automatic mixing and packaging device for a fertilizer production line according to claim 1, characterized in that: The gathering and feeding hopper 1 is fixedly provided with a feeding port 2 at its center. The top of the feeding port 2 is fixedly connected to a feeding pipe 3. The top of the feeding pipe 3 is fixedly connected to the feeding pipe 2. Multiple sets of openings 1 are fixedly opened on the outer side of the gathering and feeding hopper 1.

5. The automatic mixing and packaging device for a fertilizer production line according to claim 1, characterized in that: The center of the gathering and feeding hopper 2 is fixedly provided with a feeding port 3, the top of the feeding port 3 is fixedly connected to a feeding pipe 4, the top of the feeding pipe 4 is fixedly connected to the bottom of the gathering and feeding hopper 1, the bottom of the gathering and feeding hopper 2 is fixedly connected to the feeding pipe 1, and multiple sets of openings 2 are fixedly opened on the outer side of the gathering and feeding hopper 2.

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