Particle screening device for compound fertilizer production

Abstract

The utility model relates to the technical field of compound fertilizer production, in particular to a particle screening device for compound fertilizer production, which comprises a box body, the box body comprises a screening box, and the top end of the screening box is fixedly connected with a hopper. Through the arrangement of the through groove, compound fertilizer can slide into the conveying box through the screen plate after being intercepted by the screen plate, the first spiral conveying rod can convey the compound fertilizer entering the conveying box and can disperse the caked compound fertilizer, and then the compound fertilizer can enter the screening box again through the conveying pipe to be screened; the effect of circularly screening the compound fertilizer can be achieved, screening sufficiency can be guaranteed, the screening quality can be improved, meanwhile, springs are arranged, when the compound fertilizer falls onto the screening plate, the screening plate vibrates and shakes, separation of the compound fertilizer with different particle sizes can be accelerated, and the screening efficiency is improved. And the compound fertilizer can better enter the conveying box.

Description

Technical Field

[0001] The utility model relates to the technical field of compound fertilizer production, in particular to a particle screening device for compound fertilizer production. Background Art

[0002] Compound fertilizer refers to a fertilizer that contains two or more of the main nutrients such as N (nitrogen), P (phosphorus), and K (potassium). It has the advantages of high nutrient content, few by-components, and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization, and promoting high and stable crop yields. When screening compound fertilizer, a particle screening device is usually used to control the compound fertilizer particles within a certain particle size range. A particle screening device is a device used to separate materials of different particle sizes. It uses the aperture size of the screen to classify the materials according to particle size. By screening compound fertilizer particles, the fertilizer can be evenly spread, which is beneficial for crop absorption of nutrients. At the same time, screening can remove particles that are too fine or too large, which is beneficial to improving product quality.

[0003] In the prior art, when compound fertilizer particles are screened by a screening device, the particles of the compound fertilizer are usually screened through a screen to achieve screening. During the screening process, the compound fertilizer is prone to agglomeration, resulting in particles being too large, or accumulation on the screen resulting in no dispersion, which may cause some compound fertilizer particles to not be screened, thereby resulting in incomplete screening. Therefore, in order to solve the above problems, a particle screening device for compound fertilizer production is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a particle screening device for compound fertilizer production, so as to solve the problem in the prior art mentioned in the above background technology that during the screening process, compound fertilizer is prone to agglomeration, resulting in particles being too large, or not being dispersed due to accumulation on the screen, which may cause some compound fertilizer particles to not be screened, thereby resulting in incomplete screening.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a particle screening device for compound fertilizer production, comprising a box body, the box body comprising a screening box, a hopper being fixedly connected to the top of the screening box, a feed port being fixedly connected to the surface of the hopper, a screen plate being provided on the inner side of the screening box, a first discharge port being provided at the bottom end of the screening box, a second discharge port being provided on the surface of the screening box, and the screen plate being movable on the inner side of the second discharge port;

[0006] A circulation mechanism is provided on the inner side of the screening box, and the circulation mechanism includes a fixed block, which is fixedly connected to the inner wall of the screening box, and a spring is fixedly connected to the upper surface of the fixed block. The surface of the screening box is fixedly connected to a conveying box, and the inner side of the conveying box is movably connected to a first spiral conveying rod, and a first motor is fixedly installed on the bottom end of the conveying box. A through groove is opened on the inner side of the screening box, and a material conveying pipe is fixedly connected to the surface of the conveying box.

[0007] Preferably, one end of the spring is fixedly connected to the screen plate, the other end of the spring is fixedly connected to the fixed block, and the through slot is opened on the inner side of the screening box and the conveying box.

[0008] Preferably, the first spiral conveying rod is fixedly connected to the output end of the first motor, and the sieve plate moves inside the through groove.

[0009] Preferably, one end of the conveying pipe is fixedly connected to the hopper, and the other end of the conveying pipe is fixedly connected to the conveying box.

[0010] Preferably, a crushing mechanism is provided on the inner side of the hopper, and the crushing mechanism also includes a rotating rod, which is movably connected to the inner side of the hopper, and a crushing rod is fixedly connected to the surface of the rotating rod. A second motor is fixedly installed on the top end of the hopper, and a second spiral conveying rod is fixedly connected to the bottom end of the rotating rod.

[0011] Preferably, the breaking rods are arranged in groups of sixteen and are fixedly connected to the rotating rods, and the rotating rods are fixedly connected to the output end of the second motor.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By opening the through slot, the compound fertilizer can be intercepted by the screen plate and can slide into the conveying box through the screen plate. The first spiral conveying rod can convey the compound fertilizer entering the conveying box and disperse the agglomerated compound fertilizer. Then the compound fertilizer can enter the screening box again through the feeding pipe and be screened, which can achieve the effect of cyclic screening of the compound fertilizer and ensure the adequacy of screening, thereby improving the quality of screening. At the same time, through the setting of the spring, when the compound fertilizer falls on the screen plate, the screen plate will vibrate and shake, thereby accelerating the separation of compound fertilizers of different particle sizes and allowing the compound fertilizer to enter the conveying box better, thereby improving the screening efficiency.

[0014] 2. The second motor drives the rotating rod to rotate, so that the crushing rod and the second spiral conveying rod can rotate accordingly under the action of the rotating rod. The rotation of the crushing rod can break up the compound fertilizer entering the hopper, thereby avoiding the excessive size of particles caused by the agglomeration of compound fertilizer, so that the compound fertilizer can be better screened by the screen plate. The setting of the second spiral conveying rod facilitates the dredging of the hopper, so that the compound fertilizer can be smoothly discharged from the bottom of the hopper, which can avoid the blockage of the hopper and ensure the continuity of screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic front cross-sectional view of the structure of the present utility model;

[0016] Figure 2 It is a schematic side sectional view of the structure of the present utility model;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 This is a schematic top view and cross-sectional view of the structure of the hopper and the crushing rod of the utility model.

[0019] In the figure: 1. Screening box; 11. Hopper; 12. Feed port; 13. Screen plate; 14. First discharge port; 15. Second discharge port; 2. Fixed block; 21. Spring; 22. Conveyor box; 23. First screw conveyor rod; 24. First motor; 25. Through slot; 26. Conveyor pipe; 3. Rotating rod; 31. Crushing rod; 32. Second motor; 33. Second screw conveyor rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] The first motor 24 and the second motor 32 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0023] A particle screening device for compound fertilizer production includes a box body, which includes a screening box 1. A hopper 11 is fixedly connected to the top of the screening box 1. A feed port 12 is fixedly connected to the surface of the hopper 11. A sieve plate 13 is provided on the inner side of the screening box 1. A first discharge port 14 is provided at the bottom of the screening box 1. A second discharge port 15 is provided on the surface of the screening box 1. The sieve plate 13 is movable on the inner side of the second discharge port 15. Compound fertilizer can be added to the hopper 11 through the setting of the feed port 12. Compound fertilizer particles can be screened through the setting of the sieve plate 13. The holes of the two groups of sieve plates 13 are of different sizes, which can screen out compound fertilizer particles of different sizes. The screened compound fertilizer can be discharged through the first discharge port 14 and the second discharge port 15.

[0024] A circulation mechanism is provided on the inner side of the screening box 1, which includes a fixed block 2, which is fixedly connected to the inner wall of the screening box 1, and a spring 21 is fixedly connected to the upper surface of the fixed block 2. A conveying box 22 is fixedly connected to the surface of the screening box 1, and a first spiral conveying rod 23 is movably connected to the inner side of the conveying box 22. A first motor 24 is fixedly installed on the bottom end of the conveying box 22, and a through slot 25 is provided on the inner side of the screening box 1. A material conveying pipe 26 is fixedly connected to the surface of the conveying box 22. Through the opening of the through slot 25, the compound fertilizer remaining on the upper group of sieve plates 13 can enter the interior of the conveying box 22, and can enter the hopper 11 again through the material conveying pipe 26 under the action of the first spiral conveying rod 23, thereby realizing the circulation screening of the compound fertilizer, and avoiding incomplete screening due to agglomeration of the compound fertilizer or accumulation on the sieve plate 13.

[0025] Furthermore, one end of the spring 21 is fixedly connected to the sieve plate 13, and the other end of the spring 21 is fixedly connected to the fixed block 2. The through groove 25 is opened on the inner side of the screening box 1 and the conveying box 22. Through the setting of the spring 21, when the compound fertilizer falls, the sieve plate 13 will shake and vibrate under the action of the compound fertilizer and the spring 21, which can accelerate the screening of the compound fertilizer and enable the compound fertilizer to better enter the conveying box 22.

[0026] Furthermore, the first spiral conveying rod 23 and the output end of the first motor 24 are fixedly connected, and the screen plate 13 moves on the inner side of the through groove 25. The operation of the first motor 24 can drive the first spiral conveying rod 23 to rotate, and then the first spiral conveying rod 23 can transport the compound fertilizer entering the conveying box 22, so that the compound fertilizer can enter the screening box 1 again for screening, which can ensure the quality of screening.

[0027] Furthermore, one end of the feed pipe 26 is fixedly connected to the hopper 11, and the other end of the feed pipe 26 is fixedly connected to the conveying box 22. Through the setting of the feed pipe 26, the compound fertilizer in the conveying box 22 can enter the hopper 11 and the screening box 1 again through the feed pipe 26 under the action of the first spiral conveying rod 23, thereby realizing repeated screening.

[0028] Furthermore, a crushing mechanism is provided on the inner side of the hopper 11, and the crushing mechanism also includes a rotating rod 3, which is movably connected to the inner side of the hopper 11, and a crushing rod 31 is fixedly connected to the surface of the rotating rod 3. A second motor 32 is fixedly installed on the top of the hopper 11, and a second spiral conveying rod 33 is fixedly connected to the bottom end of the rotating rod 3. Through the setting of the second spiral conveying rod 33, the bottom of the hopper 11 can be dredged, which can prevent the compound fertilizer from accumulating in the hopper 11, thereby affecting the smooth falling.

[0029] Furthermore, the breaking rods 31 are fixedly connected to the rotating rods 3 in groups of sixteen, and the rotating rods 3 are fixedly connected to the output end of the second motor 32. Through the setting of the breaking rods 31, the agglomerated compound fertilizer can be broken up during the rotation, which can avoid the compound fertilizer being unable to be screened due to being too large, and can improve the adequacy of screening.

[0030] Working principle: when in use, the compound fertilizer falls on the sieve plate 13, and the compound fertilizer that meets the requirements of the upper group of sieve plates 13 in the screening box 1 will continue to fall to the lower group of sieve plates 13 to be screened, while the compound fertilizer that does not meet the requirements will be intercepted by the upper group of sieve plates 13, thereby entering the conveying box 22 through the through slot 25. The first motor 24 is electrically connected to the external power supply. The staff starts the first motor 24 by pressing the switch. The first spiral conveying rod 23 will rotate under the action of the first motor 24 and can convey the compound fertilizer entering the conveying box 22. During the conveying process, the agglomerated compound fertilizer will also be more dispersed, thereby realizing that the compound fertilizer enters the hopper 11 again through the feeding pipe 26 and enters the screening box 1 to be screened again. At the same time, when the compound fertilizer falls on the sieve plate 13, the spring 21 will be deformed. Due to the elastic properties of the spring 21, the spring 21 will vibrate and shake, thereby accelerating the separation of compound fertilizers of different particle sizes, and also allowing the compound fertilizer to better enter the conveying box 22.

[0031] The second motor 32 is electrically connected to an external power source. The staff starts the second motor 32 by pressing the switch. The operation of the second motor 32 drives the rotating rod 3 to rotate. The crushing rod 31 and the second spiral conveying rod 33 will rotate accordingly under the action of the rotating rod 3. The rotation of the crushing rod 31 can break up the agglomerated compound fertilizer, which can achieve the crushing of the compound fertilizer and facilitate better screening of the compound fertilizer. The setting of the second spiral conveying rod 33 can dredge the bottom of the hopper 11 and can convey the compound fertilizer in the hopper 11, so that the compound fertilizer can fall stably and continuously.

[0032] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A particle screening device for compound fertilizer production, comprising a box body, the box body comprising a screening box (1), the top of the screening box (1) is fixedly connected to a hopper (11), the surface of the hopper (11) is fixedly connected to a feed port (12), a sieve plate (13) is provided on the inner side of the screening box (1), a first discharge port (14) is provided at the bottom end of the screening box (1), a second discharge port (15) is provided on the surface of the screening box (1), and the sieve plate (13) is movable on the inner side of the second discharge port (15); It is characterized in that A circulation mechanism is provided on the inner side of the screening box (1), and the circulation mechanism includes a fixed block (2), the fixed block (2) is fixedly connected to the inner wall of the screening box (1), the upper surface of the fixed block (2) is fixedly connected to a spring (21), the surface of the screening box (1) is fixedly connected to a conveying box (22), the inner side of the conveying box (22) is movably connected to a first spiral conveying rod (23), the bottom end of the conveying box (22) is fixedly installed with a first motor (24), the inner side of the screening box (1) is provided with a through groove (25), and the surface of the conveying box (22) is fixedly connected to a conveying pipe (26).

2. The particle screening device for compound fertilizer production according to claim 1, characterized in that: One end of the spring (21) is fixedly connected to the screen plate (13), and the other end of the spring (21) is fixedly connected to the fixed block (2). The through groove (25) is opened on the inner side of the screening box (1) and the conveying box (22).

3. The particle screening device for compound fertilizer production according to claim 1, characterized in that: The first spiral conveying rod (23) is fixedly connected to the output end of the first motor (24), and the sieve plate (13) moves inside the through groove (25).

4. The particle screening device for compound fertilizer production according to claim 1, characterized in that: One end of the material delivery pipe (26) is fixedly connected to the hopper (11), and the other end of the material delivery pipe (26) is fixedly connected to the conveying box (22).

5. The particle screening device for compound fertilizer production according to claim 1, characterized in that: A crushing mechanism is provided on the inner side of the hopper (11), and the crushing mechanism further comprises a rotating rod (3), the rotating rod (3) is movably connected to the inner side of the hopper (11), a crushing rod (31) is fixedly connected to the surface of the rotating rod (3), a second motor (32) is fixedly installed on the top end of the hopper (11), and a second spiral conveying rod (33) is fixedly connected to the bottom end of the rotating rod (3).

6. The particle screening device for compound fertilizer production according to claim 5, characterized in that: The crushing rods (31) are in sixteen groups and fixedly connected to the rotating rod (3), and the rotating rod (3) is fixedly connected to the output end of the second motor (32).

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