Mixing device for preparing dicyandiamide fertilizer

Abstract

The utility model relates to a mixing device for preparing dicyandiamide fertilizer, which comprises a mixing box, a stirring mechanism is arranged in the mixing box, a discharge pipe is arranged at the bottom of the mixing box, a first valve is mounted on the discharge pipe, a crushing feed hopper is arranged at the top of the mixing box, and two crushing rollers which are horizontally arranged side by side are arranged in the crushing feed hopper. The crushing rollers are driven by a driving mechanism to rotate, the rotating directions of the two crushing rollers are opposite, an agent-liquid proportioning barrel is further arranged at the top of the mixing box, the bottom of the agent-liquid proportioning barrel is communicated with an inner cavity of the mixing box through a liquid discharging pipe, a second valve is installed on the liquid discharging pipe, and a transparent graduated scale extending in the length direction is embedded in the agent-liquid proportioning barrel. According to the utility model, caked fertilizer is crushed through the two crushing rollers, so that the mixing uniformity is improved. Liquid ingredients are put into the agent-liquid proportioning cylinder, personnel can conveniently determine the dosage of the ingredients through the scales of the transparent graduated scale, the dosage of the ingredients can be accurately adjusted, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer processing technology, specifically to a mixing device for preparing dicyandiamide fertilizer. Background Technology

[0002] Fertilizer application has long been widely used in agricultural production to increase crop yields. Fertilizers mainly consist of compounds rich in nitrogen, phosphorus, and potassium, along with other organic matter, and the appropriate ratio can be selected based on the crop type. However, due to the unique transformation of nitrogen and phosphorus in the soil, fertilizer utilization is not high. Currently, dicyandiamide, as a nitrification inhibitor, can suppress the conversion of ammonium nitrogen to nitrate nitrogen in the soil, thereby improving the utilization rate of nitrogen, phosphorus, and trace elements in fertilizers, promoting root growth, reducing the frequency of fertilization, and lowering fertilization costs.

[0003] Currently, dicyandiamide fertilizer synergist and fertilizer are mixed using a mixer. However, existing mixers have several drawbacks: first, they cannot adjust the dosage of ingredients, making them inconvenient to use; second, some fertilizers may clump due to long-term storage, which can cause uneven mixing and reduce the synergistic effect of the fertilizer synergist; and third, materials tend to adhere to the inner wall of the mixer during mixing, making cleaning difficult. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a mixing device for preparing dicyandiamide fertilizer. It facilitates the adjustment of ingredient dosages, is easy to use, and allows for easy cleaning of the inner wall during the mixing process, thereby improving the uniformity of material mixing.

[0005] This utility model is achieved through the following technical solution: a mixing device for preparing dicyandiamide fertilizer, comprising a mixing box, a stirring mechanism inside the mixing box, a discharge pipe at the bottom of the mixing box with a first valve installed on the discharge pipe, a crushing feed hopper at the top of the mixing box with two horizontally arranged crushing rollers inside the crushing feed hopper, the crushing rollers being driven to rotate by a driving mechanism, and the two crushing rollers rotating in opposite directions; a liquid-agent mixing cylinder at the top of the mixing box, the bottom of the liquid-agent mixing cylinder being connected to the inner cavity of the mixing box through a drain pipe with a second valve installed on the drain pipe, and a transparent scale extending along the length direction embedded on the liquid-agent mixing cylinder.

[0006] This solution uses a crushing feed hopper to feed solid fertilizer into the mixing tank, where two crushing rollers break up any clumps, thus improving the uniformity of the mixture. Liquid ingredients are added through a mixing cylinder, and a transparent scale allows personnel to easily determine the dosage, ensuring accurate mixing. After mixing, the liquid is drained into the mixing tank via a drain pipe for further blending, making it more convenient to use.

[0007] As an optimization, the drive mechanism includes a first motor, a driving sprocket, a driven sprocket, a transmission chain, a driving gear, and a driven gear. The first motor is fixed to the top of the mixing tank, the driving sprocket is fixedly connected to the output end of the first motor, the driven sprocket is fixedly connected to one end of one of the crushing rollers, the driving sprocket is connected to the driven sprocket via the transmission chain, and the driving gear and driven gear are respectively fixed to the ends of two crushing rollers and mesh with each other. In this optimized scheme, the first motor drives the driving sprocket to rotate, thereby driving the crushing roller connected to it to rotate. Since the two crushing rollers are connected by two meshing gears, when one crushing roller rotates, it will drive the other crushing roller to rotate in the opposite direction, realizing the synchronous reverse rotation of two crushing rollers driven by one motor, saving energy.

[0008] As an optimization, the crushing roller includes a rotating roller rotatably connected to the crushing feed hopper, and multiple crushing rods evenly distributed on the outer wall of the rotating roller, with the crushing rods of the two crushing rollers arranged in a crisscross pattern. This optimized design, with the crushing rods arranged in a crisscross pattern, enhances the crushing effect.

[0009] As an optimization, the stirring mechanism includes a rotating shaft rotatably connected to the top of the mixing chamber and a second motor driving the rotating shaft. Two sets of laterally extending stirring rods are symmetrically arranged on the outer wall of the rotating shaft. A scraper is fixed to the end of each stirring rod away from the rotating shaft. The scraper is parallel to the rotating shaft, and the end of the scraper away from the stirring rod contacts the inner wall of the mixing chamber. In this optimized solution, the second motor drives the rotating shaft to rotate, thereby realizing the rotation and stirring of the stirring rods. Simultaneously, the material adhering to the inner wall is scraped off by the scraper, making cleaning convenient.

[0010] As an optimization, each set of stirring rods consists of two rods, with a connecting rod fixed between them. Multiple blades are evenly distributed on the connecting rod. This optimization increases the stirring area by using blades, thereby improving the stirring effect and efficiency.

[0011] As an optimization, the top of the mixing tank is equipped with two reagent mixing cylinders. This optimized solution can simultaneously mix different ingredients, improving mixing efficiency and making it more convenient to use.

[0012] As an optimization, the top of the mixing chamber is also equipped with a spare feed hopper. This optimized solution allows solid fertilizers that do not require crushing to be directly fed into the mixing chamber from the spare feed hopper, making it convenient to use.

[0013] As an optimization, a support ring is fixed to the bottom of the outer wall of the mixing tank, and multiple support legs are evenly distributed circumferentially along the bottom of the support ring. In this optimized solution, the support legs are supported at the bottom of the support ring, and the force is distributed through the support ring, thereby improving the strength of the outer wall of the mixing tank.

[0014] The beneficial effects of this invention are as follows: Solid fertilizer is fed into the mixing chamber through a crushing hopper, and the clumps of fertilizer are crushed by two crushing rollers, thereby improving the uniformity of mixing. Liquid ingredients are added through a liquid proportioning cylinder, and the scale on the transparent ruler allows personnel to easily determine the dosage, achieving accurate dosage adjustment. After proportioning, the liquid is discharged into the mixing chamber through a drain pipe for mixing, making it more convenient to use. During mixing, a stirring mechanism is used for stirring, and at the same time, a scraper removes material adhering to the inner wall, making cleaning easy. Solid fertilizers that do not require crushing can be directly added to the mixing chamber from the spare feed hopper, further improving ease of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the mixing tank;

[0016] Figure 2 This is a front view of the present utility model;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This is a top view of the present invention;

[0019] Figure 5 This is a schematic diagram of the internal structure of the crushing feed hopper;

[0020] As shown in the figure:

[0021] 1. Mixing box; 2. Crushing feed hopper; 3. Crushing roller; 31. Rotating roller; 32. Crushing rod; 4. Drive mechanism; 41. First motor; 42. Drive sprocket; 43. Driven sprocket; 44. Transmission chain; 45. Drive gear; 46. Driven gear; 5. Liquid mixing cylinder; 6. Transparent scale; 7. Drain pipe; 8. Second valve; 9. Stirring mechanism; 91. Second motor; 92. Rotating shaft; 93. Stirring rod; 94. Scraper; 95. Connecting rod; 96. Blade; 10. Spare feed hopper; 11. Support ring; 12. Support leg; 13. Discharge pipe; 14. First valve. Detailed Implementation

[0022] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0023] like Figures 1-5 As shown, a mixing device for preparing dicyandiamide fertilizer includes a mixing tank 1. A discharge pipe 13 is provided at the bottom of the mixing tank 1, and a first valve 14 is installed on the discharge pipe 13. A support ring 11 is fixedly connected to the bottom of the outer wall of the mixing tank 1, and multiple support legs 12 are evenly distributed circumferentially at the bottom of the support ring 11. In this embodiment, four support legs 12 are fixedly connected to the bottom of the support ring 11.

[0024] The mixing chamber 1 is equipped with a stirring mechanism 9. Specifically, the stirring mechanism 9 includes a rotating shaft 92 rotatably connected to the top of the mixing chamber 1 and a second motor 91 that drives the rotating shaft 92 to rotate. In this embodiment, the second motor 91 is fixedly mounted on the top of the mixing chamber 1. Two sets of laterally extending stirring rods 93 are symmetrically arranged on the outer wall of the rotating shaft 92. A scraper 94 is fixedly connected to the end of the stirring rod 93 away from the rotating shaft 92. The scraper 94 is parallel to the rotating shaft 92, and the end of the scraper 94 away from the stirring rod 93 contacts the inner wall of the mixing chamber 1. In this embodiment, there are two stirring rods 93 in each set, and the two stirring rods 93 in each set are distributed vertically. A vertical connecting rod 95 is fixedly connected between the two stirring rods 93. Multiple blades 96 are evenly distributed on the connecting rod 95. In this embodiment, two blades 96 are evenly distributed along the length of the connecting rod 95.

[0025] The top of the mixing chamber 1 is provided with a crushing feed hopper 2, and the lower end of the crushing feed hopper 2 is connected to the inner cavity of the mixing chamber 1. The crushing feed hopper 2 is provided with two horizontally arranged crushing rollers 3, which are driven to rotate by a drive mechanism 4, and the two crushing rollers 3 rotate in opposite directions.

[0026] Specifically, the drive mechanism 4 includes a first motor 41, a drive sprocket 42, a driven sprocket 43, a transmission chain 44, a drive gear 45, and a driven gear 46. The first motor 41 is fixed to the top of the mixing tank 1. The drive sprocket 42 is fixedly connected to the output end of the first motor 41. The driven sprocket 43 is fixedly connected to one end of one of the crushing rollers 3. The drive sprocket 42 is connected to the driven sprocket 43 via the transmission chain 44, thereby enabling the first motor 41 to drive the rotation of one of the crushing rollers 3. The drive gear 45 and the driven gear 46 are respectively fixed to the ends of the two crushing rollers 3, and the drive gear 45 and the driven gear 46 mesh, thereby enabling the other crushing roller 3 to rotate synchronously in the opposite direction when one crushing roller 3 rotates.

[0027] The crushing roller 3 described in this embodiment includes a rotating roller 31 rotatably connected to the crushing feed hopper 2, and a plurality of crushing rods 32 evenly distributed on the outer wall of the rotating roller 31, with the crushing rods 32 of the two crushing rollers 3 being distributed in a crisscross pattern. The driven sprocket 43, the driving gear 45, and the driven gear 46 are all fixedly connected to the end of the rotating roller 31.

[0028] The top of the mixing tank 1 is also provided with a solution mixing cylinder 5. The bottom of the solution mixing cylinder 5 is connected to the inner cavity of the mixing tank 1 through a drain pipe 7. A second valve 8 is installed on the drain pipe 7. A transparent scale 6 extending along the length direction is embedded on the solution mixing cylinder 5. In this embodiment, the top of the mixing tank 1 is provided with two solution mixing cylinders 5.

[0029] The top of the mixing box 1 is also provided with a spare feed hopper 10, and the lower end of the spare feed hopper 10 is connected to the inner cavity of the mixing box 1.

[0030] Working principle: Fertilizer is placed into the crushing feed hopper 2. The first motor 41 drives one of the crushing rollers 3 to rotate, which in turn drives the other crushing roller 3, which is meshed with a gear, to rotate synchronously in the opposite direction. The two crushing rollers 3 break up any lumps in the fertilizer. Dicyandiamide and other ingredients are placed into two liquid proportioning cylinders 5, and the proportions are measured according to the scale on the transparent ruler 6. The second valve 8 is opened to allow the ingredients to flow into the mixing tank 1. The second motor 91 drives the stirring rod 92 to rotate and stir the mixture. At the same time, the inner wall is scraped by the scraper 94.

[0031] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A mixing device for preparing dicyandiamide fertilizer, comprising a mixing chamber (1), wherein a stirring mechanism (9) is provided inside the mixing chamber (1), and a discharge pipe (13) is provided at the bottom of the mixing chamber (1), wherein a first valve (14) is installed on the discharge pipe, characterized in that: The top of the mixing box (1) is provided with a crushing feed hopper (2), and two horizontally arranged crushing rollers (3) are provided in the crushing feed hopper. The crushing rollers (3) are driven to rotate by a drive mechanism (4), and the two crushing rollers (3) rotate in opposite directions. The top of the mixing box (1) is also provided with a liquid ratio cylinder (5). The bottom of the liquid ratio cylinder is connected to the inner cavity of the mixing box (1) through a drain pipe (7). A second valve (8) is installed on the drain pipe (7). A transparent scale (6) extending along the length direction is embedded on the liquid ratio cylinder (5).

2. The mixing device for preparing dicyandiamide fertilizer according to claim 1, characterized in that: The drive mechanism (4) includes a first motor (41), a drive sprocket (42), a driven sprocket (43), a transmission chain (44), a drive gear (45), and a driven gear (46). The first motor (41) is fixed to the top of the mixing box (1). The drive sprocket (42) is fixed to the output end of the first motor. The driven sprocket (43) is fixed to one end of one of the crushing rollers (3). The drive sprocket (42) is connected to the driven sprocket (43) through the transmission chain (44). The drive gear (45) and the driven gear (46) are respectively fixed to the ends of the two crushing rollers (3), and the drive gear and the driven gear mesh.

3. The mixing device for preparing dicyandiamide fertilizer according to claim 1, characterized in that: The crushing roller (3) includes a rotating roller (31) rotatably connected to the crushing feed hopper (2), and a plurality of crushing rods (32) evenly distributed on the outer wall of the rotating roller (31), with the crushing rods (32) of the two crushing rollers (3) being distributed crosswise.

4. The mixing device for preparing dicyandiamide fertilizer according to claim 1, characterized in that: The stirring mechanism (9) includes a rotating shaft (92) rotatably connected to the top of the mixing tank (1) and a second motor (91) that drives the rotating shaft (92) to rotate. Two sets of horizontally extending stirring rods (93) are symmetrically arranged on the outer wall of the rotating shaft (92). A scraper (94) is fixedly connected to one end of the stirring rod away from the rotating shaft (92). The scraper is parallel to the rotating shaft (92), and one end of the scraper (94) away from the stirring rod (93) contacts the inner wall of the mixing tank (1).

5. The mixing device for preparing dicyandiamide fertilizer according to claim 4, characterized in that: Each set of stirring rods (93) consists of two rods, and a connecting rod (95) is fixed between the two stirring rods (93). Multiple blades (96) are evenly distributed on the connecting rod.

6. The mixing apparatus for preparing dicyandiamide fertilizer according to claim 1, characterized in that: The top of the mixing tank (1) is provided with two solution mixing cylinders (5).

7. The mixing apparatus for preparing dicyandiamide fertilizer according to claim 1, characterized in that: The mixing box (1) is also equipped with a spare feed hopper (10) on top.

8. The mixing apparatus for preparing dicyandiamide fertilizer according to claim 1, characterized in that: A support ring (11) is fixed to the bottom of the outer wall of the mixing box (1), and multiple support legs (12) are evenly distributed around the bottom of the support ring (11).

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