Mixing device for compound fertilizer production

Abstract

The utility model relates to the technical field of compound fertilizer production discloses a mixing device for compound fertilizer production, including mixing box and support frame, the inside of mixing box is provided with mixing structure, the mixing structure includes filter mechanism and mixing mechanism, the filter mechanism includes feed hopper, driving motor, rotating rod, mounting plate, threaded rod, the feed hopper bottom is connected with the mixing box top each other, this mixing device for compound fertilizer production has realized through driving motor drive rolling pressure roll rotation, can fast rolling pressure fertilizer agglomeration, cooperate threaded rod adjustment rolling pressure roll and filter screen's interval, adapt to different size's agglomeration fertilizer, and the fertilizer after beating is selected through filter screen, and the impurity and the hard block that have not beaten are rejected, improve the final fertilizer mixing quality, and the clean brush can clean the residual fertilizer on the surface of filter screen in real time, and can quickly and conveniently dismount filter screen, thereby can better carry out mixing work.

Description

Technical Field

[0001] This utility model belongs to the field of compound fertilizer production technology, specifically, it relates to a mixing device for compound fertilizer production. Background Technology

[0002] Compound fertilizer refers to chemical fertilizer containing two or more nutrients. Compound fertilizer has the advantages of high nutrient content, few by-products and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable crop yields. However, the production of compound fertilizer requires the use of mixing equipment for processing.

[0003] In existing mixing devices, fertilizer is usually poured directly into the mixing device for stirring and mixing. However, in actual use, fertilizer is prone to clumping when stored, and it is not easy to quickly and conveniently crush fertilizer of different sizes during mixing. As a result, the fertilizer cannot be broken up and cannot be filtered quickly and conveniently, which reduces the working efficiency of the mixing device. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for compound fertilizer production to solve the problems mentioned in the background art.

[0005] A mixing device for compound fertilizer production includes a mixing box and a support frame, wherein a mixing structure is provided inside the mixing box; The hybrid structure includes a filtration mechanism and a mixing mechanism; The filtration mechanism includes a feed hopper, a drive motor, a rotating rod, a mounting plate, and a threaded rod. The bottom of the feed hopper is connected to the top of the mixing chamber. The output end of the drive motor is connected to the bottom of the rotating rod. The outer wall of the rotating rod is connected to the inner wall of the mounting plate. The inner wall of the mounting plate is threadedly connected to the outer wall of the threaded rod. A connecting plate is fixedly installed at one end of the mounting plate. A pressing roller is rotatably connected to the inner side of the connecting plate. A cleaning brush is fixedly installed on one side of the mounting plate. A fixing plate is fixedly installed on the inner wall of the feed hopper. A filter screen is pressed against the inner wall of the fixing plate. A limiting plate is fixedly installed at the bottom of the filter screen. A fixing bolt is threadedly connected to the inner wall of the limiting plate.

[0006] In a preferred embodiment of this utility model, an adjustment hole is provided on one side of the rotating rod, and one end of the threaded rod is threadedly connected to the inner wall of the adjustment hole. There are two connecting plates, which are symmetrically distributed at both ends of the mounting plate, so as to quickly and conveniently break up the clumps of fertilizer and thus better perform the filtration work.

[0007] In a preferred embodiment of this utility model, there are two rollers, which are symmetrically distributed on the inner sides of the two connecting plates. The cleaning brush is made of flexible material, which enables the fertilizer to be filtered quickly and conveniently, and thus allows for better mixing and processing.

[0008] In a preferred embodiment of this utility model, there are two filter screens, which are symmetrically distributed on the inner side of the fixing plate. The fixing plate has a fixing hole at the bottom, and the top of the fixing bolt is threaded to the inner wall of the fixing hole, so that the filter screens can be quickly and conveniently installed and removed, thereby enabling better filtration of fertilizer.

[0009] In a preferred embodiment of this utility model, the mixing mechanism includes a stirring rod, a bearing plate, a scraper, a fixing bolt, and a stirring rod. The inner wall of the stirring rod is connected to the outer wall of the rotating rod. The outer side of the bearing plate is engaged with one end of the scraper. The inner wall of the scraper is threadedly connected to the outer wall of the fixing bolt. One side of the scraper is connected to one end of the stirring rod.

[0010] In a preferred embodiment of this utility model, there are several stirring rods, which are symmetrically distributed on the outer wall of the rotating rod. The outer wall of the bearing plate has a limiting hole. One end of the fixing bolt is threaded to the inner wall of the limiting hole. The scraper is made of elastic scraper, which enables the fertilizer to be stirred and mixed quickly and conveniently, thereby enabling better processing and production.

[0011] In a preferred embodiment of this utility model, the outer wall of the mixing box is connected to the inner wall of the support frame, the bottom of the mixing box is connected to the top of the drive motor, and the outer wall of the rotating rod is connected to the inner wall of the bearing plate.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This compound fertilizer production mixing device, through a filtration mechanism, enables the rotation of a roller driven by a drive motor to quickly crush fertilizer clumps. The spacing between the roller and the filter screen can be adjusted using a threaded rod to accommodate fertilizer clumps of different sizes, ensuring uniform dispersal. The dispersed fertilizer is then screened through the filter screen to remove impurities and undispersed hard lumps, providing uniform raw materials for subsequent mixing and improving the final fertilizer mixing quality. A cleaning brush can clean residual fertilizer from the filter screen surface in real time, preventing filter clogging and ensuring smooth feeding. Furthermore, the filter screen can be quickly and easily disassembled and reassembled, facilitating better mixing operations.

[0013] 2. This compound fertilizer production mixing device achieves coordinated mixing by stirring rod one and stirring rod two through a mixing mechanism, which acts on the fertilizer from multiple directions, greatly improving mixing efficiency and uniformity; the elastic scraper can closely fit the inner wall of the mixing box to scrape off residual fertilizer, reduce raw material loss, and at the same time prevent residual fertilizer from clumping and affecting the quality of the next mixing, and the scraper can be quickly and easily disassembled and assembled.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the filter mechanism of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the filter mechanism of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the filter mechanism of this utility model. Figure 3 ; Figure 6 This is a schematic diagram of the structure of the hybrid mechanism of this utility model. Figure 1 ; Figure 7 This is a schematic diagram of the structure of the hybrid mechanism of this utility model. Figure 2 .

[0016] In the diagram: 1. Mixing box; 2. Support frame; 3. Filtering mechanism; 301. Feed hopper; 302. Drive motor; 303. Rotating rod; 304. Mounting plate; 305. Threaded rod; 306. Connecting plate; 307. Roller; 308. Cleaning brush; 309. Fixing plate; 310. Filter screen; 311. Limiting plate; 312. Fixing bolt one; 4. Mixing mechanism; 401. Stirring rod one; 402. Bearing plate; 403. Scraper; 404. Fixing bolt two; 405. Stirring rod two. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model. Example

[0018] like Figures 1 to 7As shown, a mixing device for compound fertilizer production includes a mixing box 1 and a support frame 2, wherein a mixing structure is provided inside the mixing box 1; The mixing structure includes a filtration mechanism 3 and a mixing mechanism 4; The filtration mechanism 3 includes a feed hopper 301, a drive motor 302, a rotating rod 303, a mounting plate 304, and a threaded rod 305. The bottom of the feed hopper 301 is connected to the top of the mixing box 1. The output end of the drive motor 302 is connected to the bottom of the rotating rod 303. The outer wall of the rotating rod 303 is connected to the inner wall of the mounting plate 304. The inner wall of the mounting plate 304 is threadedly connected to the outer wall of the threaded rod 305. A connecting plate 306 is fixedly installed at one end of the mounting plate 304. A rolling roller 307 is rotatably connected to the inner side of the connecting plate 306. A cleaning brush 308 is fixedly installed on one side of the mounting plate 304. A fixing plate 309 is fixedly installed on the inner wall of the feed hopper 301. A filter screen 310 is pressed against the inner wall of the fixing plate 309. A limiting plate 311 is fixedly installed at the bottom of the filter screen 310. A fixing bolt 312 is threadedly connected to the inner wall of the limiting plate 311. In this embodiment, an adjustment hole is provided on one side of the rotating rod 303, and one end of the threaded rod 305 is threadedly connected to the inner wall of the adjustment hole. There are two connecting plates 306, which are symmetrically distributed at both ends of the mounting plate 304, so that the clumped fertilizer can be quickly and conveniently broken up, thereby enabling better filtration. Furthermore, there are two rollers 307, which are symmetrically distributed on the inner side of the two connecting plates 306. The cleaning brush 308 is made of flexible brush, which can quickly and conveniently filter the fertilizer and thus better carry out the mixing process. Furthermore, there are two filter screens 310, which are symmetrically distributed on the inner side of the fixing plate 309. The fixing plate 309 has a fixing hole at the bottom, and the top of the fixing bolt 312 is threaded to the inner wall of the fixing hole, so that the filter screens 310 can be quickly and easily installed and removed, thereby enabling better filtration of fertilizer.

[0019] Quantitative operating steps for filtration mechanisms (taking "Nitrogen, Phosphorus and Potassium Compound Fertilizer, with agglomerated particle size of 3-5mm" as an example) clumping and breaking up Spacing settings: For agglomerated particles with a diameter of 3-5mm, the distance between the roller and the filter screen should be 3mm. Loosen the threaded rod (the torque will decrease from 15N·m to 0), turn the handwheel to adjust the position of the mounting plate, and position it according to the scale marks (each division is 0.5mm). Tighten the threaded rod to 15N·m. Speed ​​adjustment: Set the drive motor speed to 350r / min. After starting, the rollers rotate synchronously. The clumped fertilizer falls into the feed hopper. The grinding pressure is controlled at 60-80N to ensure that the particles after breaking up are ≤2mm. Dispersion effect verification: Take 1 kg of crushed fertilizer and screen it through a standard sieve (2 mm aperture). If the material on the sieve is ≤5%, it is qualified. If there is too much material on the sieve, reduce the distance between the rollers to 2.5 mm and increase the rotation speed to 400 r / min.

[0020] Filter removal and cleaning Disassembly process: Loosen one fixing bolt (torque drops from 15 N·m to 0), remove the limit plate, pull out the filter screen along the sliding groove of the fixing plate (apply force ≤10 N), clean the residual fertilizer on the surface of the filter screen (can be blown out with compressed air), the whole process ≤5 minutes; Installation process: Check the filter screen aperture (ensure no deformation or blockage), embed the filter screen into the fixing plate, install the limit plate and tighten the fixing bolts to 15 N·m, gently pull the filter screen (apply force ≤ 5 N), if there is no displacement, it is qualified; Real-time cleaning: The cleaning brush rotates synchronously with the mounting plate (350 r / min), and the brush bristles adhere to the filter screen surface with a pressure of 0.1 MPa to ensure that the filter screen is not clogged and the feeding speed is stable at 50 kg / h.

[0021] When compound fertilizer needs to be mixed for production, the operator pours the fertilizer into the feed hopper 301 and filters it through the filter screen 310. At this time, the drive motor 302 is started, driving the rotating rod 303 to rotate. The rotating rod 303 rotates the mounting plate 304, which in turn rotates the connecting plate 306. The connecting plate 306 then rotates the crushing roller 307, which crushes any clumps of fertilizer, quickly and easily breaking them up and crushing them into uniform sizes. When the distance between the crushing roller 307 and the filter screen 310 needs to be adjusted, the threaded rod 305 is rotated to move it along the inner wall of the mounting plate 304. Moving the threaded rod 305 allows it to be pulled out from one side of the rotating rod 303, thus eliminating the need to adjust the distance between the roller and the filter screen 304. With the limit fixed, pulling the connecting plate 306 drives the rolling roller 307 to move. The movement of the connecting plate 306 causes the mounting plate 304 to slide on the rotating rod 303, thereby quickly and easily adjusting the distance between the rolling roller 307 and the filter screen 310 for better rolling. The rotation of the mounting plate 304 drives the cleaning brush 308 to rotate, which cleans the surface of the filter screen 310 and effectively prevents the filter screen 310 from clogging. When the filter screen 310 needs to be disassembled, the fixing bolt 312 is rotated to move it on the inner wall of the limit plate 311. The movement of the fixing bolt 312 allows it to be pulled out from the bottom of the fixing plate 309, thereby canceling the limit fixation of the filter screen 310 and allowing the filter screen 310 to be disassembled. When installation is required, the above steps are repeated in reverse. Example

[0022] Based on Embodiment 1, the mixing mechanism 4 includes a stirring rod 401, a bearing plate 402, a scraper 403, a fixing bolt 404, and a stirring rod 405. The inner wall of the stirring rod 401 is connected to the outer wall of the rotating rod 303. The outer side of the bearing plate 402 is engaged with one end of the scraper 403. The inner wall of the scraper 403 is threadedly connected to the outer wall of the fixing bolt 404. One side of the scraper 403 is connected to one end of the stirring rod 405. In this embodiment, there are several stirring rods 401, which are symmetrically distributed on the outer wall of the rotating rod 303. The outer wall of the bearing plate 402 is provided with a limiting hole. One end of the fixing bolt 404 is threaded to the inner wall of the limiting hole. The scraper 403 is made of elastic scraper, which can quickly and conveniently stir and mix the fertilizer, thereby enabling better processing and production. Furthermore, the outer wall of the mixing box 1 is connected to the inner wall of the support frame 2, the bottom of the mixing box 1 is connected to the top of the drive motor 302, and the outer wall of the rotating rod 303 is connected to the inner wall of the bearing plate 402.

[0023] Quantitative operation steps of the mixing mechanism (accepting the above-mentioned feed rate of 50kg / h) Uniform mixing operation Parameter settings: The drive motor speed is 200r / min (stirring rods one and two rotate synchronously), the mixing time is 15 minutes, and it is suitable for the mixing needs of nitrogen, phosphorus and potassium compound fertilizer. Verification of stirring effect: After mixing, randomly select 3 samples (100g each) and test the uniformity of nutrient composition. If the deviation is ≤5%, the mixing is qualified (mixing uniformity ≥95%). If the deviation is too large, extend the mixing time by 5 minutes or increase the speed to 250r / min. Residual cleanup: The scraper rotates synchronously with the mixing rod to clean the residual fertilizer on the inner wall of the mixing tank (residual amount ≤0.5g / m²), avoiding cross-contamination between different batches of fertilizer.

[0024] Quick disassembly and assembly of scraper Disassembly process: Loosen the second fixing bolt (torque drops from 10 N·m to 0), pull out the scraper along the slot of the bearing plate (apply force ≤ 8 N), clean the residual fertilizer on the scraper surface, replace it when wear > 2 mm, the whole process ≤ 3 minutes; Installation process: Insert the new scraper into the slot of the bearing plate, tighten the fixing bolts to 10 N·m, manually rotate the stirring rod to ensure that the scraper is in contact with the box wall (gap ≤ 1 mm), and it is qualified if there is no jamming.

[0025] When compound fertilizer needs to be mixed for production, the operator pours the fertilizer into the feed hopper 301. The filtration mechanism 3 quickly and easily disperses and filters the fertilizer. After the fertilizer enters the mixing chamber 1 through the feed hopper 301, the rotating rod 303 drives the first stirring rod 401 to rotate. The rotating rod 303 drives the support plate 402 to rotate. The rotation of the support plate 402 drives the scraper 403 and the second stirring rod 405 to rotate. Through the cooperation of the first stirring rod 401 and the second stirring rod 405, the mixture can be quickly and easily mixed. The fertilizer can be quickly and easily mixed. The rotating scraper 403 can scrape off the fertilizer residue on the inner wall of the mixing box 1, thus enabling better mixing. When it is necessary to disassemble the scraper 403, the fixing bolt 404 is rotated to move it on the inner wall of the scraper 403. The movement of the fixing bolt 404 allows it to be pulled out from the support plate 402, thereby removing the limiting fixation of the scraper 403 and disassembling it. When it is necessary to install, the above steps are repeated in reverse.

Claims

1. A mixing device for compound fertilizer production, comprising a mixing tank (1) and a support frame (2), characterized in that: The mixing box (1) is equipped with a mixing structure inside; The mixing structure includes a filtration mechanism (3) and a mixing mechanism (4). The filtration mechanism (3) includes a feed hopper (301), a drive motor (302), a rotating rod (303), a mounting plate (304), and a threaded rod (305). The bottom of the feed hopper (301) is connected to the top of the mixing box (1). The output end of the drive motor (302) is connected to the bottom of the rotating rod (303). The outer wall of the rotating rod (303) is connected to the inner wall of the mounting plate (304). The inner wall of the mounting plate (304) is threadedly connected to the outer wall of the threaded rod (305). 04) A connecting plate (306) is fixedly installed at one end. A rolling roller (307) is rotatably connected to the inner side of the connecting plate (306). A cleaning brush (308) is fixedly installed on one side of the mounting plate (304). A fixing plate (309) is fixedly installed on the inner wall of the feed hopper (301). A filter screen (310) is pressed against the inner wall of the fixing plate (309). A limiting plate (311) is fixedly installed at the bottom of the filter screen (310). A fixing bolt (312) is threadedly connected to the inner wall of the limiting plate (311).

2. The mixing device for compound fertilizer production according to claim 1, characterized in that: An adjustment hole is provided on one side of the rotating rod (303), and one end of the threaded rod (305) is threadedly connected to the inner wall of the adjustment hole. There are two connecting plates (306), which are symmetrically distributed at both ends of the mounting plate (304).

3. The mixing device for compound fertilizer production according to claim 1, characterized in that: There are two rollers (307), which are symmetrically distributed on the inner side of the two connecting plates (306). The cleaning brush (308) is made of flexible brush.

4. The mixing device for compound fertilizer production according to claim 1, characterized in that: There are two filter screens (310), which are symmetrically distributed on the inner side of the fixing plate (309). The fixing plate (309) has a fixing hole at the bottom, and the top of the fixing bolt (312) is threaded to the inner wall of the fixing hole.

5. A mixing device for compound fertilizer production according to claim 1, characterized in that: The mixing mechanism (4) includes a stirring rod (401), a support plate (402), a scraper (403), a fixing bolt (404), and a stirring rod (405). The inner wall of the stirring rod (401) is connected to the outer wall of the rotating rod (303). The outer side of the support plate (402) is engaged with one end of the scraper (403). The inner wall of the scraper (403) is threadedly connected to the outer wall of the fixing bolt (404). One side of the scraper (403) is connected to one end of the stirring rod (405).

6. A mixing device for compound fertilizer production according to claim 5, characterized in that: The number of stirring rods (401) is several, and the stirring rods (401) are symmetrically distributed on the outer wall of the rotating rod (303). The outer wall of the bearing plate (402) has a limiting hole. One end of the fixing bolt (404) is threaded to the inner wall of the limiting hole. The scraper (403) is made of elastic scraper.

7. A mixing device for compound fertilizer production according to claim 1, characterized in that: The outer wall of the mixing box (1) is connected to the inner wall of the support frame (2), the bottom of the mixing box (1) is connected to the top of the drive motor (302), and the outer wall of the rotating rod (303) is connected to the inner wall of the bearing plate (402).

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