Vibrating mesh screen for compound fertilizer processing

Abstract

The utility model relates to the technical field of vibrating screens, and discloses a vibrating screen for compound fertilizer processing, which comprises an adjusting mechanism, damping and noise reduction mechanisms and a bottom plate, the top of the bottom plate is movably provided with a collecting box, the two sides of the collecting box are provided with the damping and noise reduction mechanisms, the tops of the damping and noise reduction mechanisms are provided with a screen frame, and the two ends of the screen frame are respectively provided with a vibrating motor. A first screen is fixedly arranged at the upper end in the screen frame, a first discharging port is formed in the left side of the first screen, a guide plate is fixedly arranged at the bottom of the first screen, a second screen is fixedly arranged at the bottom of the guide plate, and a second discharging port is formed in the left side of the second screen. By means of the structural design of the feeding channel, the discharging pipe and the adjusting mechanism, the pipe diameter of the discharging pipe can be adjusted by reasonably adjusting the position of the adjusting plate in the discharging pipe, and therefore the purpose of adjusting the discharging amount of compound fertilizer particles in the feeding channel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a vibrating screen for compound fertilizer processing. Background Technique

[0002] Compound fertilizer refers to chemical fertilizer containing two or more nutrient elements. Compound fertilizer has the advantages of high nutrient content, few secondary components and good physical properties, and plays a very important role in improving the utilization rate of waste materials and promoting the high and stable yield of crops.

[0003] The production process of compound fertilizer includes raw material batching, raw material mixing, raw material granulation, granule drying, granule cooling, granule grading, finished product film coating, and finished product packaging in sequence. Among them, raw material batching: raw materials such as urea, ammonium nitrate, ammonium chloride, ammonium phosphate, potassium chloride (potassium sulfate) are equipped in a certain proportion (according to market demand and soil test results in various regions); raw material mixing: the prepared raw materials are put into a mixer and stirred evenly to improve the overall uniform fertilizer efficiency content of the fertilizer granules; raw material granulation: the evenly stirred raw materials are sent into a granulator for granulation; granule drying: the moisture contained in the compound fertilizer granules is dried to increase the granule strength and facilitate storage; granule cooling: the temperature of the dried compound fertilizer granules is too high and they are easy to agglomerate. After cooling, it is convenient for bagging storage and transportation; granule grading: the cooled compound fertilizer granules are graded, and the unqualified compound fertilizer granules are crushed and granulated again, and the qualified compound fertilizer granules are screened out; finished product film coating: the qualified compound fertilizer granules are coated to increase the brightness and roundness of the compound fertilizer granules; finished product packaging: the compound fertilizer granules after film coating are bagged and stored in a ventilated place. At present, compound fertilizer processing plants usually use vibrating screens to grade compound fertilizer granules. The unqualified compound fertilizer granules are crushed and granulated again, and the qualified compound fertilizer granules are screened out.

[0004] After retrieval, the Chinese patent with the patent publication number CN217141096U discloses a vibrating screen for compound fertilizer processing, which includes a frame, a screen frame inclined above the frame, and a screen hopper arranged above the screen frame. The middle of the screen hopper has a feeding channel, and a primary screen is arranged at the bottom of the feeding channel. A screening chamber is opened on the top surface of the screen frame below the feeding channel. A screening component is arranged in the screening chamber. The screening component divides the screening chamber into a coarse particle chamber above the screening component and a fine particle chamber below the screening component. A coarse particle outlet communicating with the coarse particle chamber and a fine particle outlet communicating with the fine particle chamber are opened on the bottom surface of the screen frame. This vibrating screen for compound fertilizer processing conducts a primary screening on compound fertilizer granules through the setting of the screen hopper, and a secondary screening on compound fertilizer granules through the setting of the screen frame below the screen hopper, so as to screen out large-particle-size compound fertilizer granules and small-particle-size compound fertilizer granules that can be sold by grading.

[0005] However, the above design still has deficiencies. In the above design, the cooperation between the feeding channel and the vibration motor is used to realize the conveying of compound fertilizer particles, which is convenient for the subsequent vibration screening of compound fertilizer particles. However, since the feeding amount of compound fertilizer particles in the feeding channel is not reasonably controlled, it is very likely that the compound fertilizer particles will accumulate on the sieve mesh, which will reduce the screening effect of the sieve mesh. Utility Model Content

[0006] The purpose of the present utility model is to provide a vibrating screen for compound fertilizer processing, which solves the problem in the background technology that the cooperation between the feeding channel and the vibration motor is used to realize the conveying of compound fertilizer particles, which is convenient for the subsequent vibration screening of compound fertilizer particles. However, since the feeding amount of compound fertilizer particles in the feeding channel is not reasonably controlled, it is very likely that the compound fertilizer particles will accumulate on the sieve mesh, which will reduce the screening effect of the sieve mesh.

[0007] In order to solve the above technical problems, the present utility model provides the following technical solutions:

[0008] A vibrating screen for compound fertilizer processing, including an adjustment mechanism, a shock absorption and noise reduction mechanism, and a bottom plate. A collection box is movably arranged on the top of the bottom plate. Shock absorption and noise reduction mechanisms are arranged on both sides of the collection box. A sieve frame is arranged on the top of the shock absorption and noise reduction mechanism. Vibration motors are installed at both ends of the sieve frame. A first sieve mesh is fixedly arranged at the upper end inside the sieve frame. A first discharge port is opened on the left side of the first sieve mesh. A guiding plate is fixedly arranged at the bottom of the first sieve mesh. A second sieve mesh is fixedly arranged at the bottom of the guiding plate. A second discharge port is opened on the left side of the second sieve mesh. A discharge pipe communicating with the inside thereof is fixedly arranged at the bottom of the sieve frame. A support block is fixedly connected to the right side of the upper end of the sieve frame. A feeding channel is fixedly connected to the top of the support block. A feeding pipe communicating with the inside thereof is fixedly arranged at the bottom of the feeding channel. An adjustment mechanism is arranged inside the feeding pipe.

[0009] Preferably, the adjustment mechanism includes a fixed groove, which is opened on the right outer wall of the feeding channel. A hexagonal screw head is rotatably arranged inside the fixed groove.

[0010] Preferably, a transmission rod is fixedly connected to the left side of the hexagonal screw head. A threaded rod is fixedly connected to the left end of the transmission rod. A moving block is threadedly connected to the outer wall of the threaded rod.

[0011] Preferably, a limiting rod penetrates through the lower end surface of the moving block movably. An adjustment plate is fixedly connected to the left side of the moving block, and the adjustment plate is movably arranged inside the feeding pipe.

[0012] Preferably, the shock absorption and noise reduction mechanism includes a sleeve. A damping shock absorber is fixedly connected to the bottom end inside the sleeve. A spring is sleeved on the outer wall of the damping shock absorber.

[0013] Preferably, a moving plate is fixedly connected to the top of the damping shock absorber, a sleeve rod is fixedly connected to the top of the moving plate, and the upper end of the sleeve rod penetrates through the top of the sleeve and is fixedly connected to the bottom of the sieve frame.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0015] 1. Through the structural design of the feeding channel, the blanking pipe and the adjusting mechanism, it can be realized that by reasonably adjusting the position of the adjusting plate in the blanking pipe, the diameter of the blanking pipe can be adjusted, so as to achieve the purpose of adjusting the blanking amount of the compound fertilizer particles in the feeding channel.

[0016] 2. Through the structural design of the sieve frame, the first discharge port, the second discharge port, the collection box, the vibration motor, the first sieve mesh, the guiding plate, the second sieve mesh, the discharge pipe and the shock absorption and noise reduction mechanism, multi-stage screening and collection of the compound fertilizer particles can be realized, with simple operation and strong practicability. At the same time, when the vibration motor generates vibration, through the elasticity of the spring, the vibration of the sieve frame can be reduced from being transmitted downward, which can not only effectively reduce the noise generated during the screening process, but also extend the service life of the sieve frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional partial schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a partial schematic diagram of the internal structure of the front view of the present utility model;

[0019] Figure 3 It is a partial enlarged schematic diagram at position A of the present utility model;

[0020] Figure 4 It is a partial enlarged schematic diagram at position B of the present utility model.

[0021] Wherein: 1. Sieve frame; 2. First discharge port; 3. Second discharge port; 4. Collection box; 5. Feeding channel; 6. Support block; 7. Vibration motor; 8. Adjusting mechanism; 801. Adjusting plate; 802. Moving block; 803. Hexagonal screw head; 804. Transmission rod; 805. Fixed groove; 806. Threaded rod; 807. Limiting rod; 9. Shock absorption and noise reduction mechanism; 901. Sleeve; 902. Spring; 903. Sleeve rod; 904. Moving plate; 905. Damping shock absorber; 10. Bottom plate; 11. Blanking pipe; 12. First sieve mesh; 13. Guiding plate; 14. Second sieve mesh; 15. Discharge pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , a vibrating screen for compound fertilizer processing, including an adjustment mechanism 8, a shock absorption and noise reduction mechanism 9, and a bottom plate 10. A collection box 4 is movably arranged on the top of the bottom plate 10. Shock absorption and noise reduction mechanisms 9 are arranged on both sides of the collection box 4. The shock absorption and noise reduction mechanism 9 includes a sleeve 901. A damping shock absorber 905 is fixedly connected to the bottom end inside the sleeve 901. A spring 902 is sleeved on the outer wall of the damping shock absorber 905. The top of the damping shock absorber 905 is fixedly connected to a moving plate 904. A sleeve rod 903 is fixedly connected to the top of the moving plate 904. The upper end of the sleeve rod 903 penetrates through the top of the sleeve 901 and is fixedly connected to the bottom of the sieve frame 1. A sieve frame 1 is arranged on the top of the shock absorption and noise reduction mechanism 9. Vibration motors 7 are installed at both ends of the sieve frame 1. A first sieve 12 is fixedly arranged at the upper end inside the sieve frame 1. A first discharge port 2 is opened on the left side of the first sieve 12. A guiding plate 13 is fixedly arranged at the bottom of the first sieve 12. A second sieve 14 is fixedly arranged at the bottom of the guiding plate 13. A second discharge port 3 is opened on the left side of the second sieve 14. A discharge pipe 15 communicating with the inside of the sieve frame 1 is fixedly arranged at the bottom of the sieve frame 1;

[0024] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , when in use, after the compound fertilizer particles fall on the first sieve 12 through the feeding pipe 11, vibrations can be generated by the vibration motors 7. With the mutual cooperation of the first sieve 12, the guiding plate 13, and the second sieve 14, the compound fertilizer particles can be screened according to their diameter sizes. And because the first sieve 12 and the second sieve 14 have a certain inclination angle, the screened compound fertilizer particles will be discharged through the first discharge port 2 and the second discharge port 3, and the staff can collect them. During this process, the compound fertilizer particles passing through the second sieve 14 will fall into the collection box 4 through the discharge pipe 15, so as to realize the multi-stage screening and collection of the compound fertilizer particles. The operation is simple and the practicability is strong. At the same time, when the vibration motors 7 generate vibrations, through the elasticity of the spring 902, the vibration of the sieve frame 1 can be reduced from being transmitted downward. This can not only effectively reduce the noise generated during the screening process, but also extend the service life of the sieve frame 1. Through the setting of the damping shock absorber 905, it can be avoided that the sieve frame 1 keeps bouncing up and down later and cannot return to the static balance situation.

[0025] On the right side of the upper end of the sieve frame 1, there is a support block 6 fixedly connected. On the top of the support block 6, there is a feeding channel 5 fixedly connected. At the bottom of the feeding channel 5, there is a feeding pipe 11 fixedly arranged and communicating with its interior. Inside the feeding pipe 11, there is an adjusting mechanism 8. The adjusting mechanism 8 includes a fixing groove 805, and the fixing groove 805 is opened on the right outer wall of the feeding channel 5. Inside the fixing groove 805, there is a hexagonal screw head 803 rotatably arranged. On the left side of the hexagonal screw head 803, there is a transmission rod 804 fixedly connected. At the left end of the transmission rod 804, there is a threaded rod 806 fixedly connected. The outer wall of the threaded rod 806 is threadedly connected with a moving block 802. The lower end surface of the moving block 802 penetrates and is movably provided with a limiting rod 807. On the left side of the moving block 802, there is an adjusting plate 801 fixedly connected, and the adjusting plate 801 is movably arranged inside the feeding pipe 11;

[0026] Specifically, as Figure 1 , Figure 2 and Figure 3 shown, when in use, when it is necessary to adjust the feeding amount of the compound fertilizer particles in the feeding channel 5, the hexagonal screw head 803 can be rotated by a tool. The rotation of the hexagonal screw head 803 drives the threaded rod 806 to rotate. The rotation of the threaded rod 806 drives the moving block 802 to move. The movement of the moving block 802 drives the adjusting plate 801 to move. By reasonably adjusting the position of the adjusting plate 801 in the feeding pipe 11, the diameter of the feeding pipe 11 can be adjusted, so as to achieve the purpose of adjusting the feeding amount of the compound fertilizer particles in the feeding channel 5.

[0027] Working principle: In this application, first add an appropriate amount of compound fertilizer particles into the feeding channel 5, and then start the vibration motor 7. When the compound fertilizer particles fall on the first sieve 12 through the feeding pipe 11, vibration can be generated by the vibration motor 7. With the mutual cooperation of the first sieve 12, the guiding plate 13 and the second sieve 14, screening can be carried out according to the diameter of the compound fertilizer particles. And because the first sieve 12 and the second sieve 14 have a certain inclination angle, the screened compound fertilizer particles will be discharged through the first discharge port 2 and the second discharge port 3, and the staff can collect them. In this process, the compound fertilizer particles passing through the second sieve 14 will fall into the collection box 4 through the discharge pipe 15, so as to realize the multi-stage screening and collection of the compound fertilizer particles. The operation is simple and the practicability is strong. Secondly, when it is necessary to adjust the feeding amount of the compound fertilizer particles in the feeding channel 5, the hexagonal screw head 803 can be rotated by a tool. The rotation of the hexagonal screw head 803 drives the threaded rod 806 to rotate. The rotation of the threaded rod 806 drives the moving block 802 to move. The movement of the moving block 802 drives the adjusting plate 801 to move. By reasonably adjusting the position of the adjusting plate 801 in the feeding pipe 11, the diameter of the feeding pipe 11 can be adjusted, so as to achieve the purpose of adjusting the feeding amount of the compound fertilizer particles in the feeding channel 5.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen for compound fertilizer processing, comprising an adjusting mechanism (8), a vibration reduction and noise reduction mechanism (9) and a bottom plate (10), characterized in that: A collecting box (4) is movably arranged on the top of the bottom plate (10), and shock-absorbing and noise-reducing mechanisms (9) are arranged on both sides of the collecting box (4). A screen frame (1) is arranged on the top of the shock-absorbing and noise-reducing mechanism (9), and vibration motors (7) are installed at both ends of the screen frame (1). A first screen (12) is fixedly arranged on the upper end of the interior of the screen frame (1), and a first discharge port (2) is opened on the left side of the first screen (12). A guide plate (13) is fixedly arranged on the bottom of the first screen (12), and the guide plate (13) ) is fixedly provided at the bottom of the screen frame (1), a second discharge port (3) is provided on the left side of the second screen frame (14), a discharge pipe (15) connected to the interior of the screen frame (1) is fixedly provided at the bottom of the screen frame (1), a support block (6) is fixedly connected to the right side of the upper end of the screen frame (1), a feed channel (5) is fixedly connected to the top of the support block (6), a feed channel (11) connected to the interior of the feed channel (5) is fixedly provided at the bottom of the feed channel (5), and an adjustment mechanism (8) is provided inside the feed channel (11).

2. The vibrating screen for compound fertilizer processing according to claim 1, characterized in that: The adjustment mechanism (8) comprises a fixing groove (805), and the fixing groove (805) is provided on the right outer wall of the feeding channel (5), and a hexagonal screw head (803) is rotatably arranged inside the fixing groove (805).

3. The vibrating screen for compound fertilizer processing according to claim 2, characterized in that: The left side of the hexagonal screw head (803) is fixedly connected to a transmission rod (804), the left end of the transmission rod (804) is fixedly connected to a threaded rod (806), and the outer wall of the threaded rod (806) is threadedly connected to a moving block (802).

4. The vibrating screen for compound fertilizer processing according to claim 3, characterized in that: A limit rod (807) is movably arranged through the lower end surface of the moving block (802), and an adjustment plate (801) is fixedly connected to the left side of the moving block (802), and the adjustment plate (801) is movably arranged inside the discharge pipe (11).

5. The vibrating screen for compound fertilizer processing according to claim 1, characterized in that: The vibration reduction and noise reduction mechanism (9) comprises a sleeve (901), the inner bottom end of the sleeve (901) is fixedly connected to a damping shock absorber (905), and the outer wall of the damping shock absorber (905) is sleeved with a spring (902).

6. The vibrating screen for compound fertilizer processing according to claim 5, characterized in that: The top of the damping shock absorber (905) is fixedly connected to a movable plate (904), the top of the movable plate (904) is fixedly connected to a sleeve rod (903), and the upper end of the sleeve rod (903) passes through the top of the sleeve (901) and is fixedly connected to the bottom of the screen frame (1).

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