Fertilizer returning crusher with damping structure

Abstract

The utility model discloses a fertilizer returning pulverizer with a damping structure, which relates to the technical field of fertilizer production and processing and comprises a base, spring dampers are fixedly mounted at four corners of the top of the base, dampers are arranged on the inner sides of the spring dampers, and the dampers are connected with the spring dampers. A filtering mechanism is fixedly connected to the top of the spring shock absorber on one side of the top of the base, and a smashing mechanism is installed on the top of the filtering mechanism. By the adoption of the structure, the smashing effect can be optimized, the second motor is started, the lead screw drives the movable block to enable the brush plate to reciprocate on the surface of the filter screen, residual materials are cleaned, the filtering efficiency is guaranteed, the cleaned materials fall into the conveying barrel, the third motor is started to drive the conveying auger, and the materials are sent back to the smashing box again to be smashed for the second time; and the continuous returned material crushing mechanism is matched with the filtering mechanism to form a complete treatment chain, so that the crushing precision and the treatment capacity of the device are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of fertilizer production and processing technology, and specifically relates to a fertilizer return crusher with a shock-absorbing structure. Background Technology

[0002] In modern agricultural production, compound fertilizer is a key agricultural input for improving crop yield and quality. Its production quality is directly related to agricultural production efficiency. Currently, soil testing and formula fertilization technology is widely used in the field of compound fertilizer production. This technology is based on soil testing and fertilizer field trials. According to the crop's fertilizer requirements, soil fertility performance and fertilizer effect, under the premise of scientific application of organic fertilizer, it accurately plans the application quantity, timing and method of fertilizers such as nitrogen, phosphorus, potassium and micronutrients, thereby achieving scientific fertilization and improving fertilizer utilization.

[0003] In the compound fertilizer production process, raw material crushing is a crucial step, and its crushing effect directly affects subsequent processing and product quality. Existing crushing equipment suffers from poor crushing effect, making it difficult to guarantee fertilizer production quality. To solve this problem, the industry has carried out technological improvements. For example, the crusher for making fertilizer disclosed in Chinese Patent No. CN210079634U, by setting up a first crushing wheel, a second crushing wheel and a stirring device, realizes the crushing and chopping of raw materials and improves the crushing effect to a certain extent.

[0004] However, such improved equipment still has limitations in practical applications. It lacks a filtration structure and cannot effectively screen out raw materials that are not fully crushed during the crushing process. These insufficiently crushed materials mixed with qualified crushed raw materials will interfere with subsequent production processes and affect the uniformity and fertilizer efficiency stability of compound fertilizer products. At the same time, the equipment does not have the function of automatically returning incompletely crushed raw materials for re-crushing, resulting in low overall processing efficiency and difficulty in meeting the needs of large-scale, high-quality compound fertilizer production. Therefore, developing compound fertilizer raw material crushing equipment with efficient filtration and return crushing functions has become an urgent problem to be solved to improve the quality and efficiency of compound fertilizer production. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a fertilizer return crusher with a shock-absorbing structure to solve the problem that the existing technology cannot screen the return material during application, which makes it easy for incompletely crushed material to remain in the crushed material and affect subsequent production and processing.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A fertilizer return crusher with a shock-absorbing structure includes a base. Spring shock absorbers are fixedly installed at the four corners of the top of the base. A damper is provided on the inner side of the spring shock absorber. A filter mechanism is fixedly connected to the top of the spring shock absorber on one side of the base. A crushing mechanism is installed on the top of the filter mechanism. A return mechanism is fixedly installed on the top of the spring shock absorber on the other side of the base. The input end of the return mechanism is connected to the output end of the filter mechanism. The output end of the return mechanism is located on the top of the crushing mechanism.

[0008] The pulverizing mechanism includes a support column, which is fixedly connected to the top of the filtration mechanism. A pulverizing box is fixedly connected to the top of the support column. A first motor is fixedly connected to one side of the pulverizing box. A pulverizing roller is fixedly connected to the output end of the first motor through the pulverizing box. The pulverizing roller is rotatably connected to both sides inside the pulverizing box. One end of the pulverizing roller is connected to the output end of the first motor. The two pulverizing rollers are connected by pulverizing teeth on their outer surfaces. The bottom output end of the pulverizing box is located at the top of the filtration mechanism.

[0009] As a preferred technical solution, a discharge hopper is fixedly connected to the bottom of the crushing box, and the overall cross-sectional shape of the discharge hopper is set as an inverted isosceles trapezoid.

[0010] As a preferred technical solution, the filtration mechanism includes a support leg, which is fixedly installed on the top of a spring shock absorber on the top of the base near the crushing box. A filter screen is fixedly installed on the top of the support leg. The filter screen is inclined as a whole. The support leg is fixedly connected to the side of the filter screen near the upper end. A cleaning component is fixedly connected to the top of the filter screen.

[0011] As a preferred technical solution, the cleaning assembly includes a top rail, which is fixedly connected to the top of the filter screen plate. A lead screw is rotatably connected inside the top rail. A second motor is fixedly connected to one end of the top rail. The output end of the second motor is connected to the end of the lead screw. The lead screw is rotatably connected inside the top rail. A movable block is threadedly connected to the outer surface of the lead screw. A brush plate is fixedly connected to the side of the movable block near the filter screen plate. The bottom of the brush plate is fitted and connected to the top of the filter screen plate.

[0012] As a preferred technical solution, the return material mechanism includes a fixed plate, which is fixedly connected to the top of a spring shock absorber on the side of the base away from the crushing mechanism. A conveying cylinder is fixedly connected to the top of the fixed plate, and a discharge pipe is fixedly connected to the upper end of the conveying cylinder. The output end of the discharge pipe is located at the top input end of the crushing box. A feeding hopper is fixedly connected to the lower end of the conveying cylinder near the filter screen. The input end of the feeding hopper is connected to the bottom output end of the filter screen. The output end of the feeding hopper is connected to the bottom of the conveying cylinder. A conveying auger is rotatably connected inside the conveying cylinder. A third motor is fixedly connected to the bottom of the conveying cylinder, and the output end of the third motor is connected to the bottom of the conveying auger.

[0013] As a preferred technical solution, a square groove is provided on the top of the base near the filter screen and away from the conveying cylinder, and a collection box is slidably connected inside the square groove.

[0014] As a preferred technical solution, the bottom two sides of the collection box are linearly arranged with equal spacing and rotatably connected to universal balls, and the side of the collection box away from the conveying cylinder is fixedly connected to a bridge-type handrail.

[0015] In summary, the present invention has the following main advantages:

[0016] First, this device achieves efficient raw material processing by linking the crushing and filtering mechanisms. During operation, the compound fertilizer raw material is put into the crushing box, and the first motor is started to drive the double crushing rollers to squeeze and grind each other to complete the initial crushing. The crushed material is screened by the inclined filter screen. The fine material falls into the collection box, and the large particles slide into the return material mechanism. When collecting the material, the bridge handle is pulled and the collection box can be pulled out by the universal ball rolling. At the same time, the spring shock absorber and damper work together to absorb vibration, reduce mechanical wear, and improve the stability and convenience of the device.

[0017] Secondly, the cleaning components and return mechanism of this device form a closed-loop process, which can optimize the crushing effect. By starting the second motor, the lead screw drives the movable block to make the brush plate reciprocate on the surface of the filter screen to clean the residual material and ensure the filtration efficiency. The cleaned material falls into the conveying cylinder, and the third motor is started to drive the conveying auger to send the material back to the crushing box for secondary crushing. The return crushing mechanism works in conjunction with the filtration mechanism to form a complete processing chain, which significantly improves the crushing accuracy and processing capacity of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the structure of this utility model;

[0020] Figure 3This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 4 This is a top view of the separated structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the separated structure of this utility model from a bottom view.

[0023] Reference numerals: 1. Base; 2. Spring shock absorber; 3. Filtering mechanism; 31. Support leg; 32. Filter screen; 33. Cleaning assembly; 331. Top rail; 332. Lead screw; 333. Second motor; 334. Movable block; 335. Brush plate; 4. Crushing mechanism; 41. Support column; 42. Crushing box; 43. First motor; 44. Crushing roller; 45. Discharge hopper; 5. Return mechanism; 51. Fixed plate; 52. Conveying cylinder; 53. Discharge pipe; 54. Feed hopper; 55. Third motor; 56. Conveying auger; 6. Square trough; 7. Collection box; 8. Universal ball; 9. Bridge handrail. Detailed Implementation

[0024] refer to Figures 1 to 5 This embodiment of a fertilizer return crusher with a shock absorption structure includes a base 1. Spring shock absorbers 2 are fixedly installed at the four corners of the top of the base 1. A damper is provided on the inner side of the spring shock absorber 2. A filter mechanism 3 is fixedly connected to the top of the spring shock absorber 2 on one side of the top of the base 1. A crushing mechanism 4 is installed on the top of the filter mechanism 3. A return material mechanism 5 is fixedly installed on the top of the spring shock absorber 2 on the other side of the top of the base 1. The input end of the return material mechanism 5 is connected to the output end of the filter mechanism 3. The output end of the return material mechanism 5 is located on the top of the crushing mechanism 4.

[0025] The crushing mechanism 4 includes a support column 41, which is fixedly connected to the top of the filter mechanism 3. A crushing box 42 is fixedly connected to the top of the support column 41. A first motor 43 is fixedly connected to one side of the crushing box 42. A crushing roller 44 is fixedly connected to the output end of the first motor 43 through the crushing box 42. The crushing roller 44 is rotatably connected to both sides inside the crushing box 42. One end of the crushing roller 44 is connected to the output end of the first motor 43. The two crushing rollers 44 are connected by a transmission through the crushing teeth on their outer surfaces. The bottom output end of the crushing box 42 is located at the top of the filter mechanism 3. When this fertilizer return crusher with a shock-absorbing structure is running, all parts work together. The spring shock absorbers 2 at the four corners of the top of the base 1 and the inner dampers work together to play a shock-absorbing role, effectively... The system buffers vibrations generated during operation, reduces mechanical wear, and ensures stable operation. During operation, fertilizer raw materials are fed into the crushing box 42 of the crushing mechanism 4. The first motor 43 on one side of the crushing box 42 is started, and the motor output drives the crushing roller 44 to rotate. The two crushing rollers 44 are connected by the crushing teeth on their outer surfaces, thus operating synchronously. During rotation, the two crushing rollers 44 cooperate with each other, using squeezing and grinding action to crush the fertilizer raw materials in the box. The crushed material is output from the bottom of the crushing box 42 to the filter mechanism 3 below. After filtration and screening, large particles that do not meet the standards enter the return material mechanism 5 through the output of the filter mechanism 3, and are then sent back to the top of the crushing mechanism 4 by the return material mechanism 5 for further crushing. This cycle is repeated to ensure the crushing effect.

[0026] refer to Figures 1-5 The bottom of the crushing box 42 is fixedly connected to a discharge hopper 45. The overall cross-sectional shape of the discharge hopper 45 is set as an inverted isosceles trapezoid. During the operation of the fertilizer return crusher, the material in the crushing box 42 after being squeezed and ground by the crushing roller 44 needs to be smoothly discharged into the subsequent processing process. At this time, the discharge hopper 45 fixedly connected to the bottom of the crushing box 42 plays an important role. Its inverted isosceles trapezoidal cross-sectional shape and the structure design of being wider at the top and narrower at the bottom provide convenient conditions for the discharge of materials. The larger upper opening can receive a large amount of material falling from the bottom of the crushing box 42, while the gradually narrowing lower opening can guide the material to fall in a concentrated manner, forming a certain flow rate and guiding effect, so that the material flows more smoothly into the filter mechanism 3 below, avoiding the accumulation and blockage of materials during the discharge process, ensuring that the crushed material can enter the next processing stage efficiently and orderly, and maintaining the continuous and stable operation of the entire crushing, filtering and return system.

[0027] refer to Figures 2-5The filtration mechanism 3 includes a support leg 31, which is fixedly installed on the top of the spring shock absorber 2 near the crushing box 42 on the top of the base 1. A filter screen plate 32 is fixedly installed on the top of the support leg 31. The filter screen plate 32 is inclined. The support leg 31 is fixedly connected to the side of the filter screen plate 32 near the upper end. A cleaning assembly 33 is fixedly connected to the top of the filter screen plate 32. The cleaning assembly 33 includes a top rail 331, which is fixedly connected to the top of the filter screen plate 32. The top rail 331 is rotatably connected internally. The filter mechanism 3 has a lead screw 332, and a second motor 333 is fixedly connected to one end of the top rail 331. The output end of the second motor 333 is connected to the end of the lead screw 332. The lead screw 332 is rotatably connected to the inside of the top rail 331. A movable block 334 is threadedly connected to the outer surface of the lead screw 332. A brush plate 335 is fixedly connected to the side of the movable block 334 near the filter screen plate 32. The bottom of the brush plate 335 is in close contact with the top of the filter screen plate 32. The support leg 31 of the filter mechanism 3 is securely mounted on the spring shock absorber 2 on the top of the base 1. Providing stable support for the entire filtration mechanism 3, the inclined filter screen 32 utilizes gravity to disperse and slide the material falling from the crushing box 42 through the discharge hopper 45 onto its surface. Finely crushed and qualified material falls directly below through the mesh, while large particles that are not completely crushed slide down the inclined surface to the output end and enter the return material mechanism 5. To prevent clogging of the filter screen 32 and ensure filtration efficiency, the cleaning component 33 is activated, starting the second motor 333 at one end of the top rail 331. The motor drives the lead screw 332 on the top rail 331. 1. Internal rotation: Since the lead screw 332 and the movable block 334 are connected by threads, the rotational motion of the lead screw 332 is converted into the linear sliding of the movable block 334 along the lead screw 332, thereby driving the brush plate 335 connected to the movable block 334 to move back and forth on the surface of the filter screen plate 32. The bottom of the brush plate 335 is tightly attached to the filter screen plate 32. During the movement, it can effectively brush away the material stuck in the mesh and attached to the surface of the filter screen, ensuring that the filter screen plate 32 always maintains a good permeability and continuously and efficiently completes the material filtration and screening work.

[0028] refer to Figures 4-5The return material mechanism 5 includes a fixed plate 51, which is fixedly connected to the top of the spring shock absorber 2 on the side of the base 1 away from the crushing mechanism 4. A conveying cylinder 52 is fixedly connected to the top of the fixed plate 51. A discharge pipe 53 is fixedly connected to the upper end of the conveying cylinder 52. The output end of the discharge pipe 53 is located at the top input end of the crushing box 42. A feeding hopper 54 is fixedly connected to the lower end of the conveying cylinder 52 near the filter screen plate 32. The input end of the feeding hopper 54 is connected to the bottom output end of the filter screen plate 32. The output end of the feeding hopper 54 is connected to the bottom of the conveying cylinder 52. A conveying auger 56 is rotatably connected inside the conveying cylinder 52. A third motor 55 is fixedly connected to the bottom of the conveying cylinder 52. The output end of the third motor 55 is connected to the bottom of the conveying auger 56. The return material mechanism 5 is responsible for conveying the insufficiently crushed material in the fertilizer return crusher. The material is returned to the crushing chamber 42 for further processing. The fixing plate 51 is fixed to the spring shock absorber 2 on the top of the base 1 away from the crushing mechanism 4, providing stable support for the conveying cylinder 52. The incompletely crushed material output from the bottom of the filter screen plate 32 enters the bottom of the conveying cylinder 52 through the feed hopper 54. The third motor 55 at the bottom of the conveying cylinder 52 is started. The output end of the motor drives the conveying auger 56 to rotate inside the cylinder. The conveying auger 56 generates an upward thrust through the rotation of the spiral blades, which transports the material at the bottom of the cylinder upward along the cylinder wall. After the material is lifted to the top of the conveying cylinder 52, it is transported back to the input end at the top of the crushing chamber 42 through the discharge pipe 53, thereby realizing the recycling and re-crushing of the substandard material. This design allows the material to be continuously processed in a closed-loop system of crushing, filtering and return, effectively improving the overall effect and production quality of fertilizer crushing.

[0029] refer to Figures 4-5A square groove 6 is provided on the top of the base 1, near the filter screen 32 and away from the conveyor cylinder 52. A collection box 7 is slidably connected inside the square groove 6. Universal balls 8 are rotatably connected to the bottom sides of the collection box 7 in a linear arrangement at equal intervals. A bridge-type handrail 9 is fixedly connected to the side of the collection box 7 away from the conveyor cylinder 52. During the operation of the fertilizer return crusher, the fine and qualified materials screened by the filter screen 32 need to be collected. The square groove 6 on the top of the base 1 provides a space for the collection box 7. The collection box 7 can slide in the square groove 6. When the fine materials fall through the filter screen 32, they will directly enter the square groove 6. The collection box 7 has linearly arranged omnidirectional balls 8 on both sides of its bottom, allowing it to roll flexibly on the ground, greatly reducing movement resistance. When operators need to collect materials, they only need to pull the bridge-type handrail 9 on one side of the collection box 7. With the help of the omnidirectional balls 8 rolling against the ground, the collection box 7 can be easily pulled out of the square groove 6, realizing convenient collection of crushed qualified materials. After collection, the collection box 7 can also be pushed back into its original position along the square groove 6 by pushing the bridge-type handrail 9 to continue receiving subsequent qualified materials. The whole process is simple, convenient and quick, effectively improving the efficiency of material collection.

[0030] Operating principle and advantages: This device achieves efficient processing of raw material crushing and screening through the linkage design of crushing mechanism 4 and filtering mechanism 3. During operation, the raw materials for compound fertilizer production are put into crushing box 42, and the first motor 43 is started. Its output power drives the crushing roller 44 to rotate. Based on the double roller transmission structure, the rotation of one crushing roller 44 can drive the other crushing roller 44 to operate synchronously. The two crushing rollers 44 perform preliminary crushing of the raw materials in the box by mutual squeezing and grinding. The crushed material falls to the inclined filter screen 32. The filter screen screens the material according to the particle size: fine and qualified material falls through the mesh into the collection box 7 below; large particles that are not completely crushed slide down the inclined surface of the filter screen and enter the return material mechanism 5. When collecting the material, the operator pulls the bridge handle 9 and uses the rolling contact between the universal ball 8 at the bottom of the collection box 7 and the ground to easily pull out the collection box 7. In addition, the spring shock absorber 2 and the damper work together to effectively absorb the vibration generated during the operation of the equipment, reduce mechanical wear, and improve the stability and convenience of the device.

[0031] The cleaning component 33 and the return material mechanism 5 of this device form a closed-loop processing flow, further optimizing the crushing effect. The second motor 333 is started, and the lead screw 332 rotates in the top rail 331. Through the threaded transmission, the movable block 334 slides along the rail. When the second motor 333 runs in both forward and reverse directions, the movable block 334 drives the brush plate 335 to make reciprocating linear motion on the surface of the filter screen plate 32, continuously brushing and cleaning the material remaining on the surface of the filter screen to prevent the screen holes from clogging and ensure filtration efficiency. The cleaned material falls into the bottom of the conveying cylinder 52 through the discharge hopper 45. At this time, the third motor 55 is started, driving the conveying auger 56 in the conveying cylinder 52 to rotate. The conveying auger 56 pushes the material upward along the cylinder wall through the pushing action of the spiral blades and sends it back to the crushing box 42 through the top discharge pipe 53, realizing the secondary crushing of the substandard material. This return material continuous crushing mechanism works in conjunction with the filtration mechanism 3 to form a complete processing chain of "crushing-filtration-cleaning-return material crushing", which significantly improves the overall crushing accuracy and processing capacity of the device.

Claims

1. A fertilizer return grinder with a damping structure, comprising a base (1), characterized in that: Spring dampers (2) are fixedly installed at the four corners of the top of the base (1). A damper is provided on the inner side of the spring damper (2). A filter mechanism (3) is fixedly connected to the top of the spring damper (2) on one side of the top of the base (1). A crushing mechanism (4) is installed on the top of the filter mechanism (3). A return material mechanism (5) is fixedly installed on the top of the spring damper (2) on the other side of the top of the base (1). The input end of the return material mechanism (5) is connected to the output end of the filter mechanism (3). The output end of the return material mechanism (5) is located on the top of the crushing mechanism (4). The crushing mechanism (4) includes a support column (41), which is fixedly connected to the top of the filter mechanism (3). A crushing box (42) is fixedly connected to the top of the support column (41). A first motor (43) is fixedly connected to one side of the crushing box (42). A crushing roller (44) is fixedly connected to the output end of the first motor (43) through the crushing box (42). The crushing roller (44) is rotatably connected to both sides inside the crushing box (42). One end of the crushing roller (44) is connected to the output end of the first motor (43). The two crushing rollers (44) are connected by the crushing teeth on their outer surfaces. The bottom output end of the crushing box (42) is located at the top of the filter mechanism (3).

2. The fertilizer return crusher with a damping structure according to claim 1, characterized in that: The bottom of the crushing box (42) is fixedly connected to a discharge hopper (45), and the overall cross-sectional shape of the discharge hopper (45) is set as an inverted isosceles trapezoid.

3. The fertilizer return crusher with a damping structure according to claim 1, characterized in that: The filtration mechanism (3) includes a support leg (31), which is fixedly installed on the top of the spring shock absorber (2) on the side of the base (1) near the crushing box (42). A filter screen plate (32) is fixedly installed on the top of the support leg (31). The filter screen plate (32) is inclined as a whole. The support leg (31) is fixedly connected to the side of the filter screen plate (32) near the upper end. A cleaning component (33) is fixedly connected to the top of the filter screen plate (32).

4. The fertilizer return crusher with a damping structure according to claim 3, characterized in that: The cleaning assembly (33) includes a top rail (331), which is fixedly connected to the top of the filter screen (32). A lead screw (332) is rotatably connected inside the top rail (331). A second motor (333) is fixedly connected to one end of the top rail (331). The output end of the second motor (333) is connected to the end of the lead screw (332). The lead screw (332) is rotatably connected inside the top rail (331). A movable block (334) is threadedly connected to the outer surface of the lead screw (332). A brush plate (335) is fixedly connected to the side of the movable block (334) near the filter screen (32). The bottom of the brush plate (335) is in close contact with the top of the filter screen (32).

5. A fertilizer return crusher with a damping structure according to claim 4, characterized in that: The return material mechanism (5) includes a fixed plate (51), which is fixedly connected to the top of the spring shock absorber (2) on the side of the base (1) away from the crushing mechanism (4). The top of the fixed plate (51) is fixedly connected to a conveying cylinder (52), and the upper end of the conveying cylinder (52) is fixedly connected to a discharge pipe (53). The output end of the discharge pipe (53) is located at the top input end of the crushing box (42). The lower end of the conveying cylinder (52) near the filter screen plate (32) is fixedly connected to a feeding hopper (54). The input end of the feeding hopper (54) is connected to the bottom output end of the filter screen plate (32). The output end of the feeding hopper (54) is connected to the bottom of the conveying cylinder (52). The inside of the conveying cylinder (52) is rotatably connected to a conveying auger (56). The bottom of the conveying cylinder (52) is fixedly connected to a third motor (55), and the output end of the third motor (55) is connected to the bottom of the conveying auger (56).

6. A fertilizer return crusher with a damping structure according to claim 5, characterized in that: A square groove (6) is provided on the top of the base (1) near the filter screen (32) and away from the conveying cylinder (52), and a collection box (7) is slidably connected inside the square groove (6).

7. A fertilizer return crusher with a damping structure according to claim 6, characterized in that: The bottom sides of the collection box (7) are linearly arranged with equal spacing and rotatably connected to universal balls (8). The side of the collection box (7) away from the conveying cylinder (52) is fixedly connected to a bridge-type handrail (9).

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