Compound fertilizer mixing device

Abstract

The utility model discloses a compound fertilizer mixing device, and relates to the technical field of agricultural fertilizers. According to the technical key points, the device comprises a primary material mixing unit and a secondary material mixing unit, a material conveying unit is arranged between the primary material mixing unit and the secondary material mixing unit, and the material conveying unit can directionally convey materials output by the primary material mixing unit into the secondary material mixing unit; the primary mixing unit is composed of two vertical stirrers with the same structure, and the secondary mixing unit is a horizontal stirrer. The primary mixing unit and the secondary mixing unit work cooperatively, so that the production efficiency of the compound fertilizer can be effectively improved while the production quality of the compound fertilizer is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of agricultural fertilizers, in particular to a compound fertilizer mixing device. BACKGROUND

[0002] The compound (compound) fertilizer is a fertilizer containing two or more than two nutrients of nitrogen, phosphorus and potassium, which can be divided into two types, one of which is a compound fertilizer made by a chemical method, and the other is a compound fertilizer mixed by several single fertilizers or compound fertilizers. The main difference between the compound fertilizer and the compound fertilizer is that the different single fertilizers (such as urea, potassium chloride) or basic compound fertilizers are mixed uniformly by mechanical means, so that the nutrient proportion of the compound fertilizer is more flexible, and the advantages of flexible preparation according to the crop demand or the actual soil fertilizer supply situation.

[0003] In the production of the existing compound fertilizer, the general process is to first weigh the required mass of single fertilizer or basic compound fertilizer, then convey the material to a vertical stirring barrel, start the stirring motor, and use the stirring motor with the stirring paddle to stir and mix the multiple fertilizers in the stirring barrel. If workers want to receive the compound fertilizer with a packaging bag, they must wait for a certain period of time to ensure that the multiple fertilizers in the stirring barrel are mixed uniformly, and then the stirring motor is stopped, and the compound fertilizer is discharged from the outlet of the stirring barrel. This leads to the difficulty of continuous production of the compound fertilizer in the production process, thereby improving the production efficiency of the compound fertilizer. CONTENT OF THE INVENTION

[0004] The application provides a compound fertilizer mixing device, which can realize the effect of continuous production of compound fertilizer, thereby effectively improving the production efficiency of the compound fertilizer.

[0005] The above object of the application is realized by the following technical scheme:

[0006] A compound fertilizer mixing device, comprising a primary mixing unit and a secondary mixing unit, a material conveying unit is arranged between the primary mixing unit and the secondary mixing unit, and the material conveying unit can direct the material output by the primary mixing unit to the secondary mixing unit;

[0007] The primary mixing unit is composed of two vertical stirrers with the same structure, both of which are installed on a first support frame, and the discharge ports of the two vertical stirrers are located directly above the material receiving end of the material conveying unit;

[0008] The secondary mixing unit is a horizontal stirrer, which is installed on a second support frame, and the discharge end of the material conveying unit is located directly above the feeding port of the horizontal stirrer.

[0009] Further, the material conveying unit comprises a scraper conveyor, which is obliquely installed between the primary mixing unit and the secondary mixing unit by a third support frame.

[0010] The low end of the scraper conveyor extends horizontally below the discharge ports of the two vertical mixers, and the high end of the scraper conveyor extends horizontally above the feed port of the horizontal mixer.

[0011] Further, a guide hopper is arranged below the primary mixing unit, which is fixed on the first support frame, the upper end of the guide hopper is opposite to the discharge ports of the two vertical mixers in the primary mixing unit, and the lower end of the guide hopper is opposite to the horizontal section of the low end of the scraper conveyor.

[0012] Further, an operation platform is arranged on the side of the primary mixing unit away from the secondary mixing unit, which is fixedly installed on a climbing frame.

[0013] Further, a receiving hopper is arranged below the discharge port of the horizontal mixer, which is fixedly installed on the second support frame, and a discharge pipe for discharging materials into a packaging bag is welded at the lower end of the receiving hopper.

[0014] Further, a closure cover is installed between the discharge port of the horizontal mixer and the upper end of the receiving hopper.

[0015] Further, a freely openable movable cover plate is arranged on the top of the vertical mixer, and an electromagnetic valve is installed on the discharge port at the bottom of the vertical mixer.

[0016] In summary, the present application has at least one of the following beneficial technical effects:

[0017] The primary mixing unit of this application can initially mix various fertilizers weighed according to the specified ratio. Then, the mixture is conveyed to the secondary mixing unit via a material conveying unit. The secondary mixing unit further mixes the initially mixed fertilizer to ensure the uniformity of the different fertilizer particles in the output compound fertilizer. The primary mixing unit consists of two vertical mixers. During operation, the worker first adds the weighed fertilizer to one of the vertical mixers. After the fertilizer is initially mixed in this mixer, the outlet of the first vertical mixer is opened, and the material is conveyed to the secondary mixing unit via the material conveying unit. While the first vertical mixer continues to discharge material, the worker can add fertilizer to the other vertical mixer and perform initial mixing. When the first vertical mixer has finished discharging, the worker can open the second vertical mixer to continue conveying material to the secondary mixing unit and add the weighed fertilizer back to the first vertical mixer. This allows for the continuous feeding of materials to the secondary mixing unit. The secondary mixing unit of this application is a horizontal mixer, which not only continuously mixes the materials inside during operation but also continuously discharges the mixed materials from its outlet. Combined with the primary mixing unit that continuously outputs materials, the production process can achieve the effect of continuously outputting qualified compound fertilizer. Correspondingly, the workers responsible for receiving the compound fertilizer in packaging bags can continuously receive qualified compound fertilizer from the outlet of the horizontal mixer. Compared with the prior art, this application can obviously effectively improve the production efficiency of compound fertilizer. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the primary mixing unit, guide hopper, operating platform, and climbing frame of this application.

[0021] Figure 3 This is a schematic diagram showing the state of the enclosure after it has been removed from the connection between the guide hopper and the discharge port of the horizontal mixer.

[0022] Reference numerals in the attached drawings: 1. Primary mixing unit; 101. Vertical mixer; 102. First support frame; 2. Secondary mixing unit; 21. Horizontal mixer; 22. Second support frame; 3. Material conveying unit; 31. Scraper conveyor; 32. Third support frame; 4. Guide hopper; 5. Operating platform; 6. Climbing frame; 7. Receiving hopper; 8. Discharge pipe; 9. Enclosed cover; 10. Movable cover plate; 11. Solenoid valve. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0024] like Figures 1-3 As shown, this application discloses a compound fertilizer mixing device, which includes a primary mixing unit 1 and a secondary mixing unit 2. A material conveying unit 3 is provided between the primary mixing unit 1 and the secondary mixing unit 2. The material conveying unit 3 can directionally convey the material output from the primary mixing unit 1 to the secondary mixing unit 2.

[0025] The primary mixing unit 1 consists of two vertical mixers 101 with the same structure. Both vertical mixers 101 are installed on the first support frame 102, and the discharge ports of both vertical mixers 101 are located directly above the receiving end of the material conveying unit 3.

[0026] The secondary mixing unit 2 is a horizontal mixer 21, which is installed on the second support frame 22, and the discharge end of the material conveying unit 3 is located directly above the feed inlet of the horizontal mixer 21.

[0027] In the above embodiments, the primary mixing unit 1 of this application mainly includes two vertical mixers 101 with the same structure. The structure of the vertical mixer 101 of this application is the same as that of the mixing tank used for mixing fertilizer in the prior art. It mainly consists of a tank body, a power motor and a stirring paddle. The power motor is located at the top of the tank body, and the stirring paddle is connected to the output end of the power motor. The bottom of the tank body is provided with a discharge port for discharging materials, and the top of the tank body is provided with a feeding port for adding materials. After the technicians add the various fertilizers to be mixed into the tank body and start the power motor, they can use the stirring paddle to mix the various materials in the tank body. The secondary mixing unit 2 of this application uses a horizontal mixer 21, whose structure is similar to that of a common continuous drum mixer. It mainly consists of a drum body, a power motor, and support components. The outer side of the drum body is equipped with a gear ring, and the inside of the drum body is equipped with spiral turning ribs. The drum body is mounted on a second support frame 22 through a support assembly, and the two are movably connected. The power motor is connected to a gear through a reducer, and the gear meshes with the gear ring. Thus, after the power motor starts, it can drive the drum body to rotate through the gear. During the rotation of the drum body, the spiral turning ribs inside can stir the fertilizer while continuously feeding the fertilizer out of the discharge port of the drum body. Since the vertical mixer 101 and the horizontal mixer 21 of this application are both mechanical mixing equipment commonly used in the manufacturing process, the specific details and working principles of these devices will not be elaborated here.

[0028] When starting the production of compound fertilizer, the production worker can first add the weighed fertilizer to one of the vertical mixers 101 (for easy distinction from the other vertical mixer 101, this mixer is referred to as the first vertical mixer 101 in this embodiment). After the vertical mixer 101 has initially mixed the fertilizer, the discharge port of the vertical mixer 101 can be opened to convey the material from the initial mixing chamber to the secondary mixing unit 2 through the material conveying unit 3. During the continuous discharge process of the first vertical mixer 101, since the discharge port diameter of the mixing tank is limited, the first vertical mixer 101 does not complete the unloading work instantly, but will continue for a certain period of time after the discharge port is opened. During this process, the worker can start adding fertilizer to another vertical mixer 101 (for ease of understanding, this mixer is referred to as the second vertical mixer 101) and perform preliminary mixing in the same way. When the second vertical mixer 101 has properly mixed the materials, the first vertical mixer 101 has just finished unloading the materials. At this time, the worker can open the second vertical mixer 101 and continue to transport materials to the secondary mixing unit 2 through the material conveying unit 3, and start adding the weighed fertilizer back to the first vertical mixer 101. By alternating the operation of the two vertical mixers 101 in the primary mixing unit 1, materials can be continuously supplied to the secondary mixing unit 2. The horizontal mixer 21 in the secondary mixing unit 2 is a continuous drum mixer, which not only continuously mixes the materials inside but also continuously discharges the mixed materials from its outlet. Combined with the continuous material output from the primary mixing unit 1, this achieves a continuous output of qualified compound fertilizer during production. Workers responsible for receiving the compound fertilizer in packaging bags can continuously receive qualified compound fertilizer from the outlet of the horizontal mixer 21. Compared with existing technologies, this application significantly improves the production efficiency of compound fertilizer. Furthermore, this application mixes multiple fertilizers twice during the production process, effectively ensuring a high degree of uniformity in the final packaging bags, so that farmers can achieve ideal fertilization results.

[0029] Furthermore, such as Figure 1 As shown, the material conveying unit 3 includes a scraper conveyor 31, which is installed at an angle between the primary mixing unit 1 and the secondary mixing unit 2 via a third support frame 32.

[0030] The lower end of the scraper conveyor 31 extends horizontally to directly below the discharge ports of the two vertical mixers 101, and the upper end of the scraper conveyor 31 extends horizontally to directly above the feed port of the horizontal mixer 21.

[0031] In the above embodiments, to facilitate workers in receiving compound fertilizer from the discharge port of the horizontal mixer 21, this application elevates the horizontal mixer 21 high up via the second support frame 22. If the discharge port of the vertical mixer 101 is positioned too high during installation, it will correspondingly increase the installation height of the third support frame 32 and the first support frame 102. This not only increases the risk of workers operating at height but also increases the construction cost of the second and third support frames 22. Therefore, this application positions the bottom discharge port of the vertical mixer 101 below that of the horizontal mixer 21. To smoothly transport the material discharged from the vertical mixer 101 to the inlet of the horizontal mixer 21, this application uses the third support frame 32 to position the scraper conveyor 31 at an angle between the horizontal mixer 21 and the two vertical mixers 101, as described above.

[0032] Furthermore, such as Figure 1 and Figure 2 As shown, a guide hopper 4 is provided directly below the primary mixing unit 1. The guide hopper 4 is fixed on the first support frame 102. The upper port of the guide hopper 4 faces the discharge port of the two vertical mixers 101 in the primary mixing unit 1, and the lower port of the guide hopper 4 faces the horizontal section at the lower end of the scraper conveyor 31.

[0033] In the above embodiments, the discharge ports of the two vertical mixers 101 in the primary mixing unit 1 are both facing the upper port of the guide hopper 4 installed below them in the manner described above. In this way, regardless of which vertical mixer 101 discharge port the material will first enter the guide hopper 4 before flowing to the scraper conveyor 31. The guide hopper 4 gathers and guides the material entering the hopper. After being discharged from the lower port of the guide hopper 4, it can be ensured that the material falls smoothly and evenly on the horizontal section at the lower end of the scraper conveyor 31, so that the scraper conveyor 31 can transport the pre-mixed material to the horizontal mixer 21.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown, the primary mixing unit 1 has an operating platform 5 on the side away from the secondary mixing unit 2, and the operating platform 5 is fixedly installed on the climbing frame 6 below it.

[0035] In the above embodiments, the operating platform 5, located on the side of the primary mixing unit 1 away from the secondary mixing unit 2, is fixedly installed on the ground by a climbing frame 6. The height reached by the worker after standing on the operating platform 5 via the climbing frame 6 makes it convenient for the worker to add the unpacked and weighed fertilizer into the vertical mixer 101 in the primary mixing unit 1.

[0036] Furthermore, such as Figure 1 and Figure 3As shown, a receiving hopper 7 is provided below the discharge port of the horizontal mixer 21. The receiving hopper 7 is fixedly installed on the second support frame 22. A discharge pipe 8 for unloading into the packaging bag is welded to the lower port of the receiving hopper 7.

[0037] In the above embodiments, the receiving hopper 7 located below the discharge port of the horizontal mixer 21 facilitates the collection and guidance of the material discharged from the horizontal mixer 21, which flows smoothly along the discharge pipe 8 welded to its lower port into the packaging bag prepared in advance by the worker responsible for collecting the compound fertilizer.

[0038] Furthermore, such as Figure 1 and Figure 3 As shown, a closed cover 9 is installed between the discharge port of the horizontal mixer 21 and the upper port of the receiving hopper 7.

[0039] In the above embodiments, in order to ensure the uniformity of material mixing in the horizontal mixer 21, the material will rotate to a certain height with the drum and then fall down to collide and mix with the material below the drum. There is also a certain height between the discharge port of the horizontal mixer 21 and the receiving hopper 7. This makes it easy for the material discharged from the discharge port of the horizontal mixer 21 to generate dust when it falls into the receiving hopper 7 due to the impact with the hopper wall. Therefore, this application adds a closed cover 9 between the discharge port of the horizontal mixer 21 and the receiving hopper 7. This can effectively block the dust generated when the horizontal mixer 21 discharges material within the closed cover 9, thereby reducing the harm to the surrounding workers.

[0040] Furthermore, such as Figure 2 As shown, the top of the vertical mixer 101 is provided with a movable cover plate 10 that can be opened freely, and a solenoid valve 11 is installed on the discharge port at the bottom of the vertical mixer 101.

[0041] In the above embodiments, the movable cover plate 10 on top of the mixing tank in the vertical mixer 101 allows workers to add raw materials to the tank as needed or observe the mixing process at any time. A solenoid valve 11 is installed on the discharge port at the bottom of the mixing tank in the vertical mixer 101, allowing workers to remotely control the discharge port without frequently bending over, thus improving operational convenience.

[0042] The implementation principle of this embodiment is as follows: When producing compound fertilizer, the production worker first adds the weighed fertilizer to one of the vertical mixers 101. After the vertical mixer 101 initially mixes the fertilizer, the discharge port of the vertical mixer 101 can be opened to convey the material from the initial mixing chamber to the secondary mixing unit 2 through the material conveying unit 3. During the continuous discharge process of the first vertical mixer 101, since the discharge port diameter of the mixing tank is limited, the first vertical mixer 101 does not complete the unloading work instantly, but will continue for a certain period of time after the discharge port is opened.

[0043] During this process, the worker can start adding fertilizer to another vertical mixer 101 and perform preliminary mixing in the same way. When the second vertical mixer 101 has properly mixed the material, the first vertical mixer 101 has just finished unloading the material. At this time, the worker can open the second vertical mixer 101 and continue to transport the material to the secondary mixing unit 2 through the material conveying unit 3, and start adding the weighed fertilizer back to the first vertical mixer 101.

[0044] By alternating the operation of the two vertical mixers 101 in the primary mixing unit 1, the material can be continuously supplied to the secondary mixing unit 2. The horizontal mixer 21 in the secondary mixing unit 2 of this application is a continuous drum mixer. During operation, it not only continuously mixes the internal material but also continuously discharges the mixed material from its outlet. Combined with the primary mixing unit 1 that continuously outputs material, the production process can achieve the effect of continuously outputting qualified compound fertilizer. Correspondingly, the workers responsible for receiving the compound fertilizer in packaging bags can continuously receive qualified compound fertilizer from the outlet of the horizontal mixer 21. Compared with the prior art, this effectively improves the production efficiency and uniformity of compound fertilizer.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A compound fertilizer mixing device, characterized in that: It includes a primary mixing unit (1) and a secondary mixing unit (2), and a material conveying unit (3) is provided between the primary mixing unit (1) and the secondary mixing unit (2). The material conveying unit (3) can directionally convey the material output from the primary mixing unit (1) to the secondary mixing unit (2). The primary mixing unit (1) consists of two vertical mixers (101) with the same structure. Both vertical mixers (101) are installed on the first support frame (102), and the discharge ports of both vertical mixers (101) are located directly above the receiving end of the material conveying unit (3). The secondary mixing unit (2) is a horizontal mixer (21), which is installed on the second support frame (22), and the discharge end of the material conveying unit (3) is located directly above the feed inlet of the horizontal mixer (21).

2. The compound fertilizer mixing device according to claim 1, characterized in that: The material conveying unit (3) includes a scraper conveyor (31), which is inclinedly installed between the primary mixing unit (1) and the secondary mixing unit (2) via a third support frame (32); The lower end of the scraper conveyor (31) extends horizontally to directly below the discharge ports of the two vertical mixers (101), and the upper end of the scraper conveyor (31) extends horizontally to directly above the feed port of the horizontal mixer (21).

3. The compound fertilizer mixing device according to claim 2, characterized in that: The primary mixing unit (1) is provided with a guide hopper (4) directly below it. The guide hopper (4) is fixed on the first support frame (102). The upper port of the guide hopper (4) is facing the discharge port of the two vertical mixers (101) in the primary mixing unit (1), and the lower port of the guide hopper (4) is facing the horizontal section at the lower end of the scraper conveyor (31).

4. The compound fertilizer mixing device according to any one of claims 1 to 3, characterized in that: The primary mixing unit (1) is provided with an operating platform (5) on the side away from the secondary mixing unit (2), and the operating platform (5) is fixedly installed on the climbing frame (6) below.

5. The compound fertilizer mixing device according to claim 2, characterized in that: The horizontal mixer (21) has a receiving hopper (7) below the discharge port. The receiving hopper (7) is fixedly installed on the second support frame (22). The lower port of the receiving hopper (7) is welded with a discharge pipe (8) for unloading into the packaging bag.

6. The compound fertilizer mixing device according to claim 5, characterized in that: A closed cover (9) is installed between the discharge port of the horizontal mixer (21) and the upper port of the receiving hopper (7).

7. The compound fertilizer mixing device according to any one of claims 1 to 3, characterized in that: The vertical mixer (101) is provided with a movable cover plate (10) that can be opened freely, and a solenoid valve (11) is installed on the discharge port at the bottom of the vertical mixer (101).

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