A granulating device for fertilizer processing

Abstract

The utility model discloses a granulating device for fertilizer processing relates to fertilizer granulation technical field, including the pair of roll extrusion granulation box, the pair of roll extrusion granulation box lower extreme is provided with granule screening mechanism, and granule screening mechanism includes: screening box, screening box is connected in the lower extreme of the pair of roll extrusion granulation box, filter plate, sliding plate, filter plate, sliding plate all are connected in screening box, both are all inclined to set, and the same, the surface of sliding plate is smooth, sieve plate, sieve plate is located between filter plate and sliding plate, sieve plate is inclined to set. The utility model discloses design structure is reasonable, and it is through being provided with granule screening mechanism, and filter plate can filter out the unqualified fertilizer granule of big particle size, and sieve plate screens out the fertilizer granule of the qualified particle size, and finally the powder, the fertilizer granule of small particle size will fall on the sliding plate, and the fertilizer granule of qualified particle size and unqualified particle size can respectively discharge, has guaranteed that fertilizer product granule size is even reasonable.

Description

Technical Field

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

[0002] In modern agricultural production, fertilizers play a vital role in the growth and development of crops. With the advancement of agricultural modernization, the requirements for fertilizer quality are also increasing. As a key piece of equipment for producing high-quality fertilizers, the performance of fertilizer granulation equipment directly affects the quality of fertilizer products and the efficiency of agricultural production.

[0003] However, some traditional granulation devices lack particle screening mechanisms, making it difficult to screen fertilizer particles that do not meet the required particle size. This results in fertilizer products with large differences in particle size and poor uniformity. For example, some fertilizer particles are too large and are difficult to dissolve during fertilization, releasing nutrients slowly and failing to meet the needs of crop growth in a timely manner. On the other hand, some particles are too small and are easily lost, resulting in nutrient waste. Fertilizer particles with unreasonable particle size will affect the effectiveness of fertilizer use.

[0004] To address these issues, we have provided a granulation device for fertilizer processing. Utility Model Content

[0005] 1) Technical problems to be solved

[0006] This utility model proposes a granulation device for fertilizer processing. Through the cooperation between components such as the roller extrusion granulation box and the particle screening mechanism, it solves the problem that some traditional granulation devices lack a particle screening mechanism, making it difficult to screen fertilizer particles with unqualified particle sizes, resulting in large differences in particle size and poor uniformity in the produced fertilizer products.

[0007] (ii) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a granulation device for fertilizer processing, comprising a roller extrusion granulation box, wherein a particle screening mechanism is provided at the lower end of the roller extrusion granulation box, and the particle screening mechanism includes:

[0009] A screening box, which is connected to the lower end of the roller extrusion granulation box;

[0010] The filter plate and the slide plate are both connected inside the screening box. Both are inclined in the same direction. The surface of the slide plate is smooth.

[0011] A sieve plate is located between a filter plate and a slide plate. The sieve plate is inclined in the opposite direction to the inclination of the filter plate and the slide plate.

[0012] The lower edge of the filter plate and sieve plate is connected to a spring.

[0013] The screening box contains two rotating rods, each with a cam at its outer end. The cams at their outer ends can be connected to a filter plate and a sieve plate, respectively. The screening box also contains two drive motors, each with its drive end connected to one of the rotating rods.

[0014] Furthermore, the roller extrusion granulation box is equipped with a pair of extrusion rollers and a crushing roller, with the crushing roller located at the lower end of the extrusion rollers. The outer end of the roller extrusion granulation box is equipped with a driver for the extrusion rollers and the crushing rollers.

[0015] Furthermore, the upper end of the roller extrusion granulation box is connected to a feeding hopper, the inside of which is designed as an inverted trapezoidal groove, and the discharge port at the lower end of the feeding hopper is located at the upper end of the gap between the two extrusion rollers.

[0016] Furthermore, both the filter plate and the sieve plate have sieve holes, with the sieve holes of the filter plate being larger than those of the sieve plate. Both the filter plate and the sieve plate have support rods at their lower ends, and the springs are connected to the support rods. The support rods are connected to the screening box.

[0017] Furthermore, the screening box has two discharge ports at one end, which are corresponding to the filter plate and the slide plate and are located at the lower end of the filter plate and the slide plate. The screening box has one discharge port at the other end, which is corresponding to the screen plate and is located at the lower end of the screen plate.

[0018] Furthermore, the discharge ports on both sides of the screening box are connected to a feeding hopper, which is inclined and has a smooth surface. The tail end of the feeding hopper on the side of the screen plate is connected to a feeding pipe.

[0019] Furthermore, the feed chute end of the filter plate and the slide plate is connected to a feed guide pipe, the lower end of the feed guide pipe is connected to a crushing box, the crushing box is equipped with a crushing rod, the lower end of the crushing box is connected to a discharge pipe, and the discharge pipe is equipped with a valve.

[0020] (iii) Beneficial effects:

[0021] Compared with existing technologies, this granulation device for fertilizer processing has the following advantages:

[0022] I. This fertilizer processing granulation device is equipped with a particle screening mechanism. Its filter plate can filter out unqualified fertilizer particles with large particle size, while the sieve plate can screen out fertilizer particles with qualified particle size. Finally, the powdery, small-sized fertilizer particles will fall onto the slide plate, and the qualified and unqualified fertilizer particles can be discharged separately. This ensures that the fertilizer product has a uniform and reasonable particle size. Fertilizer particles with a reasonable particle size can ensure that nutrients are released evenly during fertilization, which is conducive to the balanced absorption of nutrients by crops, promotes the healthy and uniform growth of crops, and thus improves the yield and quality of agricultural products.

[0023] II. The granulation device for fertilizer processing is equipped with a cam and a drive motor. When the drive motor is started, it drives the cam to rotate through the rotating rod. When the cam rotates, its protruding end periodically contacts and pushes the filter plate and screen plate. With the assistance of the spring, the filter plate and screen plate generate high-frequency vibration. The vibration can promote the rapid movement of granules on the filter plate and screen plate, and the vibration can also effectively reduce the clogging of the screen holes, thereby improving the processing efficiency. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the overall structure of the granulation device for fertilizer processing according to this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the screening box in the granulation device for fertilizer processing of this utility model;

[0027] Figure 3 This is a schematic diagram of the filter plate and sieve plate structure of the granulation device for fertilizer processing according to this utility model;

[0028] Figure 4 This is a schematic diagram of the side end structure of the granulation device for fertilizer processing according to this utility model;

[0029] Figure 5 This is a cross-sectional structural diagram of the granulation device for fertilizer processing according to this utility model.

[0030] In the diagram: 1. Roller extrusion granulation box; 2. Screening box; 3. Filter plate; 4. Slide plate; 5. Screen plate; 6. Spring; 7. Cam; 8. Drive motor; 9. Feed hopper; 10. Support rod; 11. Feed winnowing basket; 12. Feed pipe; 13. Guide pipe; 14. Crushing box. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1-5 As shown, this utility model provides a technical solution: a granulation device for fertilizer processing, including a roller extrusion granulation box 1. The roller extrusion granulation box 1 is equipped with a pair of extrusion rollers and a crushing roller. The surface of the extrusion rollers is designed with grooves of a specific shape. The crushing roller is located at the lower end of the extrusion rollers. The outer end of the roller extrusion granulation box 1 is equipped with a driver for the extrusion rollers and the crushing roller. The two extrusion rollers cooperate with each other and, through the extrusion force generated by their relative rotation, extrude the fertilizer raw material falling from the feeding hopper 9 into granule blanks. The crushing roller is used to break up the granule blanks by rotation, so that they become granules. The upper end of the roller extrusion granulation box 1 is connected to the feeding hopper 9. The inside of the feeding hopper 9 is designed with an inverted trapezoidal groove. This design helps the fertilizer raw material to slide down naturally under the action of gravity. The discharge port at the lower end is located at the upper end of the gap between the pair of extrusion rollers, ensuring that the fertilizer raw material can accurately fall between the extrusion rollers for extrusion granulation.

[0033] The lower end of the roller extrusion granulation box 1 is equipped with a particle screening mechanism, which includes: screening box 2, filter plate 3, slide plate 4, and sieve plate 5.

[0034] Screening box 2 is connected to the lower end of roller extrusion granulation box 1. Filter plate 3 and slide plate 4 are both connected inside screening box 2. Both are inclined and in the same direction. Fertilizer particles falling on the upper end of filter plate 3 and slide plate 4 can roll along their inclined surfaces. The surface of slide plate 4 is smooth. Screen plate 5 is located between filter plate 3 and slide plate 4. Screen plate 5 is inclined and its inclination direction is opposite to that of filter plate 3 and slide plate 4. Screen holes are opened in both filter plate 3 and screen plate 5. The screen holes of filter plate 3 are larger than those of screen plate 5.

[0035] The function of filter plate 3 is to filter out fertilizer particles that are too large and do not meet the requirements. When the formed fertilizer particles enter the screening box 2 and fall onto filter plate 3, particles with a diameter larger than the sieve holes of filter plate 3 cannot pass through and will slide down along the inclined surface of filter plate 3, thus achieving separation from other particles of different sizes.

[0036] The function of the sieve plate 5 is to screen out fertilizer particles with qualified particle size. After being screened by the filter plate 3, the remaining particles slide onto the sieve plate 5. Particles with qualified particle size are intercepted by the sieve plate 5, while unqualified particles with smaller particle size and powdery form pass through the sieve plate 5 and continue to fall. The function of the slide plate 4 is to collect particles with smaller particle size and powdery form.

[0037] Springs 6 are connected to the lower edges of filter plate 3 and sieve plate 5. Support rods 10 are provided at the lower ends of filter plate 3 and sieve plate 5. Springs 6 are connected to support rods 10. Support rods 10 are connected to screening box 2 to fix filter plate 3 and sieve plate 5.

[0038] Inside the screening box 2, there are two rotating rods. The outer ends of the rotating rods are connected to two cams 7. The protruding ends of the cams 7 at the outer ends of the two rotating rods can be connected to the filter plate 3 and the sieve plate 5 respectively. The outer end of the screening box 2 is connected to two drive motors 8. The driving ends of the two drive motors 8 are connected to the two rotating rods respectively. After the drive motors 8 are started, they drive the cams 7 to rotate through the rotating rods. When the cams 7 rotate, their protruding ends periodically contact the filter plate 3 and the sieve plate 5 and push them. With the assistance of the spring 6, the filter plate 3 and the sieve plate 5 vibrate.

[0039] The screening box 2 has two discharge ports at one end, which are corresponding to the filter plate 3 and the slide plate 4 and are located at the lower end of the filter plate 3 and the slide plate 4. The screening box 2 has one discharge port at the other end, which is corresponding to the screen plate 5 and is located at the lower end of the screen plate 5. The discharge ports on both sides of the screening box 2 are connected to a feeding hopper 11. The feeding hopper 11 is inclined and has a smooth surface to facilitate the smooth discharge of fertilizer particles. The feeding hopper 11 on the side of the screen plate 5 is connected to a feeding pipe 12 at the tail end, which is used to collect and transport the screened qualified fertilizer particles.

[0040] The feed hopper 11 on the side of the filter plate 3 and slide plate 4 is connected to a guide pipe 13. The lower end of the guide pipe 13 is connected to a crushing box 14. The crushing box 14 is equipped with a crushing rod. The crushing box 14 is used to crush unqualified fertilizer particles that are too large or too small in size discharged from the filter plate 3 and slide plate 4. After crushing the unqualified particles, the crushing box 14 can reuse them as raw materials in the granulation process, realizing the recycling of resources. The lower end of the crushing box 14 is connected to a discharge pipe. The discharge pipe is equipped with a valve. Qualified fertilizer particles enter the discharge pipe 12 through the feed hopper 11 on the side of the screen plate 5 and are directly transported to the next stage. Unqualified particles that are too large or too small enter the guide pipe 13 through the feed hopper 11 on the side of the filter plate 3 and slide plate 4, and finally enter the crushing box 14 for reprocessing.

[0041] Working principle: When in use, start the driver of the extrusion roller and the crushing roller, add the pre-treated fertilizer raw material into the feeding hopper 9, and the raw material falls into the gap between a pair of extrusion rollers through the discharge port under the action of gravity, and is extruded into granular blanks, which are then crushed into fertilizer granules by the crushing roller.

[0042] Fertilizer granules fall into the screening box 2 and first pass through the filter plate 3. Large-diameter granules are filtered by the filter plate 3 and roll down the inclined surface of the filter plate 3 to remove larger-diameter fertilizer granules. The granules screened by the filter plate 3 continue to fall and land on the screen plate 5. The screen plate 5 intercepts qualified granules and makes them roll down the inclined surface of the screen plate 5. Smaller-diameter, powdery fertilizer granules pass through the screen plate 5 and land on the slide plate 4, and then slide down the slide plate 4. Qualified fertilizer granules enter the feed pipe 12 through the feed hopper 11 at the side end of the screen plate 5 for the next stage. Unqualified granules that are too large or too small enter the guide pipe 13 through the feed hopper 11 at the side end of the filter plate 3 and the slide plate 4, respectively, and finally enter the crushing box 14 for reprocessing. Unqualified granules entering the crushing box 14 are crushed by the crushing rod and then added back to the feeding hopper 9 for granulation again.

[0043] During the screening and filtration of fertilizer granules, after the drive motor 8 starts, it drives the cam 7 to rotate through the rotating rod. When the cam 7 rotates, its protruding end periodically contacts and pushes the filter plate 3 and the screen plate 5. With the assistance of the spring 6, the filter plate 3 and the screen plate 5 vibrate.

[0044] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A granulation apparatus for fertilizer processing, comprising a roller extrusion granulation box (1), characterized in that: The lower end of the roller extrusion granulation box (1) is provided with a particle screening mechanism, which includes: Screening box (2), which is connected to the lower end of the roller extrusion granulation box (1); The filter plate (3) and the slide plate (4) are both connected inside the screening box (2). Both are inclined and in the same direction. The surface of the slide plate (4) is smooth. The sieve plate (5) is located between the filter plate (3) and the slide plate (4). The sieve plate (5) is inclined, and its inclination direction is opposite to that of the filter plate (3) and the slide plate (4). The lower edge of the filter plate (3) and the sieve plate (5) is connected to a spring (6); The screening box (2) has two rotating rods inside, and two cams (7) are connected to the outer ends of the rotating rods. The protruding ends of the cams (7) at the outer ends of the two rotating rods can be connected to the filter plate (3) and the sieve plate (5) respectively. The outer end of the screening box (2) is connected to two drive motors (8), and the drive ends of the two drive motors (8) are connected to the two rotating rods respectively.

2. The granulation apparatus for fertilizer processing according to claim 1, characterized in that: The roller extrusion granulation box (1) is equipped with a pair of extrusion rollers and a crushing roller. The crushing roller is located at the lower end of the extrusion rollers. The outer end of the roller extrusion granulation box (1) is equipped with a driver for the extrusion rollers and the crushing rollers.

3. The granulation apparatus for fertilizer processing according to claim 1, characterized in that: The upper end of the roller extrusion granulation box (1) is connected to a feeding hopper (9). The inside of the feeding hopper (9) is designed as an inverted trapezoidal groove, and the discharge port at the lower end of the feeding hopper (9) is located at the upper end of the gap between the two extrusion rollers.

4. The granulation apparatus for fertilizer processing according to claim 1, characterized in that: Both the filter plate (3) and the sieve plate (5) have sieve holes. The sieve holes of the filter plate (3) are larger than those of the sieve plate (5). Both the filter plate (3) and the sieve plate (5) have support rods (10) at their lower ends. The spring (6) is connected to the support rods (10). The support rods (10) are connected to the screening box (2).

5. A granulation apparatus for fertilizer processing according to claim 1, characterized in that: The screening box (2) has two discharge ports at one end, which are corresponding to the filter plate (3) and the slide plate (4) and are located at the lower end of the filter plate (3) and the slide plate (4). The screening box (2) has one discharge port at the other end, which is corresponding to the screen plate (5) and is located at the lower end of the screen plate (5).

6. The granulation apparatus for fertilizer processing according to claim 1, characterized in that: The discharge ports on both sides of the screening box (2) are connected to a feeding hopper (11). The feeding hopper (11) is inclined and has a smooth surface. The tail end of the feeding hopper (11) on the side of the screen plate (5) is connected to a feeding pipe (12).

7. A granulation apparatus for fertilizer processing according to claim 6, characterized in that: The feed hopper (11) at the side end of the filter plate (3) and slide plate (4) is connected to a feed guide pipe (13). The lower end of the feed guide pipe (13) is connected to a crushing box (14). A crushing rod is installed inside the crushing box (14). The lower end of the crushing box (14) is connected to a discharge pipe, and a valve is installed inside the discharge pipe.

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