Crushing structure for chemical fertilizer caking

Abstract

The utility model discloses a crushing structure for chemical fertilizer caking, which belongs to the technical field of chemical fertilizer production equipment, and comprises a fixed frame and a crushing tank fixed in the fixed frame, and further comprises an inverted circular truncated cone-shaped crushing cavity arranged in the crushing tank, a plurality of sieve holes used for discharging chemical fertilizer particles are formed in the bottom of the inner wall of the crushing cavity, the crushing and grinding cylinder is rotationally arranged in the crushing cavity, and the lower half part of the crushing and grinding cylinder is also in an inverted circular truncated cone shape. The circular truncated cone-shaped crushing cavity, the crushing and grinding cylinder and other structures are matched for use, the gap between the crushing cavity and the crushing and grinding cylinder is gradually reduced from top to bottom, and the shearing force between the outer grinding teeth and the inner grinding teeth is matched, so that the hardened chemical fertilizer is continuously ground, and the phenomenon that the crushing effect of the hardened chemical fertilizer is influenced due to crushing dead angles is avoided; and the turning plate is pushed to deflect to different directions, so that the effect of dredging stuck materials in the discharging frame is efficiently achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production equipment, in particular to a crushing structure for fertilizer agglomeration. Background Art

[0002] Chemical fertilizers, referred to as fertilizers, refer to fertilizers made by chemical or physical methods that contain one or more nutrients required for the growth of crops. They are also called inorganic fertilizers. During the production and processing of fertilizers, fertilizers are easily affected by the humidity in the environment, resulting in the problem of compaction, which affects the after-sales experience. Before leaving the factory, the pseudo-compacted fertilizers can be crushed and screened to improve the after-sales experience of fertilizers. When the existing fertilizer agglomeration crushing components are in use, compacted fertilizers are prone to stay in the corners of the crushing chamber, which is difficult to be touched by the crushing mechanism, affecting the crushing effect.

[0003] The existing patent application number: 202121467519.2 discloses a lumping crushing device for fertilizer production, which can achieve graded crushing, improve the crushing effect, and avoid the large volume of lumped fertilizers affecting the smooth feeding and crushing of fertilizers. In the above-mentioned prior art, when the device is in use, there is a large flat area between the corners of the first-stage crushing chamber and the crushing arm, and large-volume lumped fertilizers are prone to accumulate therein, affecting the crushing effect of the fertilizers. Utility Model Content

[0004] The utility model aims to provide a crushing structure for fertilizer agglomerates, so as to solve the problem in the background technology that there is a large flat area between the corners of the first-stage crushing chamber and the crushing arm, and large-volume agglomerated fertilizers are easily accumulated therein, thus affecting the crushing effect of the fertilizers.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a crushing structure for fertilizer agglomerates, comprising a fixing frame and a crushing tank fixed in the fixing frame, and the crushing structure for fertilizer agglomerates further comprises:

[0007] An inverted truncated cone-shaped crushing chamber is arranged in the crushing tank, and a plurality of sieve holes for discharging fertilizer particles are arranged at the bottom of the inner wall of the crushing chamber.

[0008] The crushing drum arranged in the crushing chamber is rotated, and the lower half of the crushing drum is also in the shape of an inverted truncated cone, and a crushing area is formed between the outer wall of the lower half of the crushing drum and the inner wall of the crushing chamber, and the gap in the crushing area gradually decreases from top to bottom.

[0009] A plurality of external grinding teeth are fixed on the inner wall of the crushing chamber, and an external grinding groove is formed between two adjacent external grinding teeth.

[0010] A plurality of inner grinding teeth are fixed on the crushing and grinding cylinder, and an inner grinding groove is formed between two adjacent inner grinding teeth. When the compacted fertilizer is crushed, the compacted fertilizer is crushed by the shear force generated by the relative displacement between the inner grinding teeth and the outer grinding teeth.

[0011] A driving motor is arranged on the crushing tank and is used for driving the crushing drum to rotate.

[0012] Furthermore, the overall shape of the crushing area is annular, and the crushing area and the crushing cylinder are coaxial.

[0013] Furthermore, the outer grinding teeth are arranged along the inclined direction of the inner wall of the crushing chamber, and the gap between two adjacent outer grinding teeth also gradually decreases from top to bottom.

[0014] Furthermore, the inner grinding teeth are arranged along the inclined direction of the outer wall of the crushing and grinding cylinder, and the inner grinding teeth correspond to the outer grinding grooves.

[0015] Furthermore, the crushing structure for fertilizer agglomeration also includes:

[0016] A material discharge frame is embedded in the crushing tank.

[0017] A feed hopper fixed on the feed frame is used for compacting fertilizer feed.

[0018] A flap is hingedly connected to the blanking frame.

[0019] A sliding block is slidably connected to a sliding groove arranged on the flap.

[0020] A telescopic rod fixed on the crushing tank is used to push the flap to swing.

[0021] Furthermore, the free end of the telescopic rod passes through the inner wall of the blanking frame, and one end of the telescopic rod is hinged on the sliding block.

[0022] Furthermore, the flap is located in the middle of the blanking frame, and the flap divides the interior of the blanking frame into two chambers of equal size.

[0023] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0024] 1. The utility model uses a truncated cone-shaped crushing chamber and a crushing roller and other structures in combination, utilizes the gap between the two to gradually decrease from top to bottom, and cooperates with the shear force between the outer and inner grinding teeth to achieve continuous crushing of compacted fertilizers, avoiding the occurrence of crushing dead corners that affect the crushing effect of compacted fertilizers;

[0025] 2. The utility model uses the telescopic rod, slider, flap and other structures to divide the interior of the feeding frame into two inner chambers. During normal feeding, the flap is in a vertical state. The two chambers are the same in size and shape. When material is stuck in one of the chambers, the telescopic rod pushes the bottom of the flap to deflect toward the other chamber, thereby expanding the chamber where the material is stuck, so that the stuck compacted fertilizer falls into the crushing tank, and then the flap is reset to a vertical state, thereby simplifying the operation of clearing the blockage inside the feeding frame and improving the effect of the operation of clearing the stuck material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axonometric drawing of the utility model;

[0027] Figure 2 It is a half-section diagram of the utility model;

[0028] Figure 3 It is a partial cross-sectional view of the utility model.

[0029] In the figure: 1. fixed frame; 2. crushing tank; 3. crushing chamber; 4. outer grinding teeth; 5. outer grinding groove; 6. crushing cylinder; 7. inner grinding teeth; 8. inner grinding groove; 9. driving motor; 10. sieve hole; 11. unloading frame; 12. feeding hopper; 13. flap; 14. telescopic rod; 15. slideway; 16. slider. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0031] like Figures 1 to 3 As shown, a crushing structure for fertilizer agglomerates includes a fixing frame 1 and a crushing tank 2 fixed in the fixing frame 1. The crushing structure for fertilizer agglomerates also includes:

[0032] An inverted truncated cone-shaped crushing chamber 3 is arranged in the crushing tank 2, and a plurality of sieve holes 10 for discharging fertilizer particles are arranged at the bottom of the inner wall of the crushing chamber 3.

[0033] The crushing drum 6 arranged in the crushing chamber 3 is rotated, and the lower half of the crushing drum 6 is also in the shape of an inverted truncated cone, and the upper half of the crushing drum 6 is in the shape of a truncated cone, and a crushing area is formed between the outer wall of the lower half of the crushing drum 6 and the inner wall of the crushing chamber 3. The gap in the crushing area gradually decreases from top to bottom. After the compacted fertilizer enters the crushing tank 2, it will fall on the inclined arc surface of the upper half of the crushing drum 6, so that the compacted fertilizer can slide into the crushing area along the inclined arc surface of the upper half of the crushing drum 6.

[0034] A plurality of external grinding teeth 4 are fixed on the inner wall of the crushing chamber 3 , and an external grinding groove 5 is formed between two adjacent external grinding teeth 4 .

[0035] A plurality of inner grinding teeth 7 are fixed on the crushing cylinder 6, and an inner grinding groove 8 is formed between two adjacent inner grinding teeth. When the compacted fertilizer is crushed, the shear force generated by the relative displacement between the inner grinding teeth 7 and the outer grinding teeth 4 crushes the compacted fertilizer.

[0036] A driving motor 9 is arranged on the crushing tank 2 to drive the crushing and grinding drum 6 to rotate. The driving motor 9 drives the crushing and grinding drum 6 to rotate continuously, so that a relative displacement is formed between the inner grinding teeth 7 and the outer grinding teeth 4 in the circumferential direction, and a shear force is formed between the two in the tangential direction of the circumferential moving path. Both sides of the compacted fertilizer are crushed and scraped at the same time, thereby improving the crushing efficiency of the compacted fertilizer. In combination with the crushing area that is wider at the top and narrower at the bottom, the compacted fertilizer with smaller and smaller volume automatically slides down under the action of gravity, thereby achieving comprehensive crushing of the compacted fertilizer. The compacted fertilizer can be completely crushed without any crushing dead corners in the crushing tank 2, and the problem of residual compacted fertilizer can be avoided. The sliding smoothness of the fertilizer in the crushing tank 2 can also be improved.

[0037] In this embodiment, the overall shape of the crushing area is annular, and the crushing area and the crushing drum 6 are coaxial. Since the crushing drum 6 and the crushing chamber 3 are both regular inverted truncated cones, the two are also coaxial, so that the gap between the lower half of the crushing drum 6 and the inner wall of the crushing chamber 3 gradually decreases from top to bottom, so as to gradually grind the large volume of compacted fertilizer until the compacted fertilizer is ground into qualified fertilizer particles, thereby achieving comprehensive crushing of the compacted fertilizer and avoiding the occurrence of agglomerated fertilizers that are larger than normal fertilizer particles, which affects the crushing effect of the compacted fertilizer and the subsequent treatment effect of the fertilizer.

[0038] In this embodiment, the outer grinding teeth 4 are arranged along the inclined direction of the inner wall of the crushing chamber 3, and the gap between two adjacent outer grinding teeth 4 gradually decreases from top to bottom, and the opposite surfaces of the two adjacent outer grinding teeth 4 are inclined surfaces, so that the cross-section of the outer grinding groove 5 is a trapezoid that is narrow inside and wide outside. In the process of crushing the compacted fertilizer, the fertilizer particles can smoothly slide along the outer grinding groove 5 to the bottom of the crushing chamber 3, avoiding the problem of large-area jamming of fertilizer particles in the outer grinding groove 5, which affects the crushing effect and efficiency of the compacted fertilizer.

[0039] In this embodiment, the inner grinding teeth 7 are arranged along the inclined direction of the outer wall of the crushing cylinder 6, and the inner grinding teeth 7 correspond to the outer grinding grooves 5. This design allows the inner grinding teeth 7 and the outer grinding teeth 4 to cooperate with each other to grind and scrape the compacted fertilizer from both sides at the same time, thereby improving the crushing efficiency and effect of the compacted fertilizer, and also avoiding the problem of material jamming during the grinding and scraping process of the compacted fertilizer, thereby preventing the jamming from affecting the crushing efficiency of the compacted fertilizer.

[0040] In this embodiment, the crushing structure for fertilizer agglomeration also includes:

[0041] A blanking frame 11 is embedded in the crushing tank 2 .

[0042] A feed hopper 12 is fixed on the feed frame 11 and is used for compacting fertilizer feed.

[0043] A flap 13 is hingedly connected to the blanking frame 11 .

[0044] A sliding block 16 is slidably connected to a sliding groove 15 provided on the flap 13 .

[0045] A telescopic rod 14 is fixed on the crushing tank 2 and is used to push the flap 13 to swing.

[0046] The free end of the telescopic rod 14 passes through the inner wall of the blanking frame 11, and one end of the telescopic rod 14 is hinged on the slider 16, so that by controlling the telescopic action of the telescopic rod 14, the slider 16 is pushed to slide in the slide groove 15, so as to push the flap 13 to deflect into one of the two chambers, so as to achieve the purpose of changing the size of the internal space of the two chambers. When material is stuck in one of the chambers, the flap 13 is pushed and deflected into the other chamber, so as to expand the internal space of the chamber where the material is stuck, so that the stuck material falls smoothly into the crushing tank 2 under the action of gravity, thereby solving the problem of material jam in the blanking frame 11, and the operation is simple and efficient.

[0047] In this embodiment, the flap 13 is located in the middle of the unloading frame 11, and the flap 13 divides the interior of the unloading frame 11 into two equal-sized chambers. The upper edges of the flap 13 on both sides are hinged to the inner wall of the unloading frame 11, and the lower edge is in a relatively free state. When material is stuck in one of the chambers, the flap 13 is pushed by the telescopic rod 14 with its hinge axis as the deflection axis, so that the lower edge of the flap 13 is deflected toward the other chamber where no material is stuck, thereby expanding the volume of the chamber where the material is stuck, and allowing the compacted fertilizer to slide smoothly into the crushing tank 2, thereby realizing mechanized and rapid cleaning of the stuck material and improving the overall efficiency of the compacted fertilizer crushing process.

[0048] The above description is only the preferred embodiment of the utility model, and the parts not described in the utility model can be implemented by adopting or drawing on existing technologies. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. The changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the utility model should also fall within the protection scope of the utility model.

Claims

1. A crushing structure for fertilizer agglomerates, comprising a fixing frame (1) and a crushing tank (2) fixed in the fixing frame (1), characterized in that: The crushing structure for fertilizer agglomeration also includes: An inverted truncated cone-shaped crushing chamber (3) is provided in the crushing tank (2), and a plurality of sieve holes (10) for discharging fertilizer particles are provided at the bottom of the inner wall of the crushing chamber (3); A crushing cylinder (6) disposed in the crushing chamber (3) is rotated, wherein the lower half of the crushing cylinder (6) is also in the shape of an inverted truncated cone, and a crushing area is formed between the outer wall of the lower half of the crushing cylinder (6) and the inner wall of the crushing chamber (3), and the gap in the crushing area gradually decreases from top to bottom; A plurality of external grinding teeth (4) fixed on the inner wall of the crushing chamber (3), wherein an external grinding groove (5) is formed between two adjacent external grinding teeth (4); A plurality of inner grinding teeth (7) are fixed on the crushing and grinding cylinder (6), and an inner grinding groove (8) is formed between two adjacent inner grinding teeth. When crushing the compacted fertilizer, the compacted fertilizer is crushed by shearing force generated by relative displacement between the inner grinding teeth (7) and the outer grinding teeth (4); A driving motor (9) is provided on the crushing tank (2) and is used to drive the crushing drum (6) to rotate.

2. The crushing structure for fertilizer agglomeration according to claim 1, characterized in that: The overall shape of the crushing area is annular, and the crushing area and the crushing cylinder (6) are in a coaxial relationship.

3. The crushing structure for fertilizer agglomeration according to claim 2 is characterized in that: The outer grinding teeth (4) are arranged along the inclined direction of the inner wall of the crushing chamber (3), and the gap between two adjacent outer grinding teeth (4) also gradually decreases from top to bottom.

4. The crushing structure for fertilizer agglomeration according to claim 3 is characterized in that: The inner grinding teeth (7) are arranged along the inclined direction of the outer wall of the crushing and grinding cylinder (6), and the inner grinding teeth (7) correspond to the outer grinding grooves (5).

5. The crushing structure for fertilizer agglomeration according to claim 1, characterized in that: The crushing structure for fertilizer agglomeration also includes: A material discharge frame (11) embedded in the crushing tank (2); A feed hopper (12) fixed on the feed frame (11) for compacting fertilizer feed; A flap (13) hingedly connected to the blanking frame (11); A sliding block (16) slidably connected to a sliding groove (15) provided on the flap (13); A telescopic rod (14) fixed on the crushing tank (2) and used for pushing the flap (13) to swing.

6. The crushing structure for fertilizer agglomeration according to claim 5, characterized in that: The free end of the telescopic rod (14) passes through the inner wall of the blanking frame (11), and one end of the telescopic rod (14) is hinged on the slider (16).

7. The crushing structure for fertilizer agglomeration according to claim 6, characterized in that: The flap (13) is located in the middle of the blanking frame (11), and the flap (13) divides the interior of the blanking frame (11) into two chambers of equal size.

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