Multi-stage screening device for compound fertilizer processing

Abstract

The utility model discloses a compound fertilizer processing multi-stage screening device, including screen box main part, vibrating mechanism and concave frame, the vibrating mechanism is provided in the bottom of screen box main part, the right end of screen box main part is provided in the concave frame, and the two vertical ends of concave frame are respectively located in the front side and the rear side of screen box main part, and the screen box main part is provided with the concave frame. A hollow square frame is arranged at the top of the concave frame, two discharging hoppers distributed in a left-right staggered mode are arranged on the inner side of the concave frame, connecting pipes are communicated between the tops of the two discharging hoppers and the top of the concave frame, and a reciprocating mechanism for driving the discharging hoppers to move in a reciprocating mode is arranged on the concave frame. The discharging hopper is provided with a material dispersing mechanism extending into the screening box main body, the screening box main body comprises a screening box, a discharging opening, a first screen and a second screen, according to the multi-stage screening device for compound fertilizer processing, materials can be evenly discharged and dispersed, the screening area can be efficiently utilized to the maximum extent, and the screening efficiency of the device is improved.

Description

Technical Field

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

[0002] Fertilization has an important impact on the growth, development, yield and quality of crops. It is an indispensable part of agricultural production. Reasonable fertilization can improve crop yield and quality and promote the sustainable development of agricultural production. Compound fertilizer is a kind of fertilizer. Compound fertilizer is a kind of chemical fertilizer mixed with multiple nutrients. Usually, compound fertilizer contains multiple main nutrients necessary for crop growth, such as nitrogen, phosphorus, potassium, and some auxiliary elements, such as sulfur, magnesium, zinc, etc. These nutrients can provide the nutrients needed by crops during their growth, help crops thrive, increase yield and improve quality. In the production process, compound fertilizer will be made into granules for easy storage, transportation and application.

[0003] In order to ensure the quality of compound fertilizer, in the process of controlling the particle size and fine impurities of compound fertilizer, it is usually necessary to use screening equipment to screen the compound fertilizer particles. The screening equipment can classify the compound fertilizer particles according to different sizes to ensure qualified particle quality. However, there is a problem in the current equipment, that is, when adding materials, stacking will occur at the feeding position, and the compound fertilizer particles cannot be evenly added to the feeding position, and the screening area cannot be efficiently used for screening, which reduces the screening efficiency of the screening equipment.

[0004] Therefore, a multi-stage screening device for compound fertilizer processing is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a multi-stage screening device for compound fertilizer processing to solve the above problems.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A multi-stage screening device for compound fertilizer processing comprises a screen box body, a vibrating mechanism and a concave frame, wherein the vibrating mechanism is arranged at the bottom of the screen box body, the right end of the screen box body is arranged on the inner side of the concave frame, and the two vertical ends of the concave frame are respectively located on the front and rear sides of the screen box body, a circular frame is arranged on the top of the concave frame, and two discharging hoppers staggered on the left and right are arranged on the inner side of the concave frame, the tops of the two discharging hoppers are connected to the top of the concave frame by connecting pipes, a reciprocating mechanism for driving the discharging hopper to reciprocate is arranged on the concave frame, and a bulk material mechanism extending to the inside of the screen box body is arranged on the discharging hopper.

[0008] Preferably, the screen box body includes a screening box, a discharge port, screen one and screen two. The screening box is arranged inside the concave frame, and the left end extends to its left. The discharge port is arranged on the left side of the screening box. The inner wall of the screening box is provided with screen one and screen two in sequence from top to bottom, and the screen holes of screen one are larger than the screen holes of screen two.

[0009] Preferably, the vibration mechanism includes a mounting frame, a vibration motor, a support rod, a connecting frame and a spring. A mounting frame is provided at the bottom of the screening box, a vibration motor is provided on the mounting frame, multiple support rods are provided on both sides of the mounting frame, a spring is provided at the top of the support rod, and a connecting frame connected to the outside of the screening box is provided at the top of the spring.

[0010] Preferably, the two connecting pipes are both hoses, and the two connecting pipes are staggered.

[0011] Preferably, the reciprocating mechanism includes a motor, a synchronous belt, a synchronous wheel, a follower block, a guide shaft and a screw rod. A follower block is provided on the right side of the two discharging hoppers. A threaded through hole and a sliding hole are provided on the front side of the two follower blocks. The insides of the two threaded through holes are transmission-connected with screw rods whose two ends pass through the two vertical ends of the concave frame. The inside of the sliding hole is slidingly connected with a guide shaft whose two ends are respectively fixedly connected to the two vertical ends of the concave frame. A synchronous wheel is provided at the rear end of the two screw rods. The two synchronous wheels are transmission-connected by the synchronous belt. The rear side of the concave frame is provided with a motor whose output shaft is coaxially connected to the rear end of one of the screw rods.

[0012] Preferably, the bulk material mechanism includes a rack, a gear, a vertical rod and a stirring blade. The left sides of the two discharge hoppers are rotatably connected to a vertical rod whose lower end extends to the inside of the screening box. The lower end of the vertical rod is provided with a stirring blade. The upper ends of the two vertical rods are provided with a gear. The gear is transmission-connected with a rack whose two ends are fixedly connected to the two vertical ends of the concave frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the vibration mechanism drives the screen box body to vibrate, and the compound fertilizer particles in the circular frame are affected by gravity and discharged from the connecting pipe and the discharge hopper into the screen box body for screening. At the same time, the reciprocating mechanism can drive the two offset discharge hoppers to do back and forth reciprocating motion to continuously change the discharge position, so that the compound fertilizer particles discharged from the discharge hopper are evenly discharged into the screen box body, and are transported to the left by the vibration generated by the vibration mechanism. At the same time, the scattering mechanism will scatter the discharged compound fertilizer particles, so that the discharged compound fertilizer particles are evenly distributed and will not pile up on each other, so as to maximize and efficiently utilize the screening area and improve the screening efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the cutaway three-dimensional structure of the screening box of the utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the concave frame of the utility model;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the reciprocating mechanism and bulk material mechanism of the utility model.

[0021] In the attached drawings: 2, screen box body; 21, screening box; 22, discharge port; 23, screen one; 24, screen two; 3, vibration mechanism; 31, mounting frame; 32, vibration motor; 33, support rod; 34, connecting frame; 35, spring; 4, concave frame; 5, circular frame; 6, discharge hopper; 7, connecting pipe; 8, reciprocating mechanism; 81, motor; 82, synchronous belt; 83, synchronous wheel; 84, follower block; 85, guide shaft; 86, screw; 9, bulk material mechanism; 91, rack; 92, gear; 93, vertical rod; 94, stirring blade. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the utility model in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0026] In this embodiment, Figure 1-6 A multi-stage screening device for compound fertilizer processing is provided. The utility model comprises a screen box body 2, a vibrating mechanism 3 and a concave frame 4. The vibrating mechanism 3 is arranged at the bottom of the screen box body 2, the right end of the screen box body 2 is arranged on the inner side of the concave frame 4, and the two vertical ends of the concave frame 4 are respectively located on the front and rear sides of the screen box body 2, a circular frame 5 is arranged on the top of the concave frame 4, and two discharging hoppers 6 which are staggered left and right are arranged on the inner side of the concave frame 4, the tops of the two discharging hoppers 6 are connected to the top of the concave frame 4 by connecting pipes 7, a reciprocating mechanism 8 for driving the discharging hopper 6 to reciprocate is arranged on the concave frame 4, and a bulk material mechanism 9 extending to the inside of the screen box body 2 is arranged on the discharging hopper 6.

[0027] In this embodiment, the vibration mechanism 3 drives the screen box body 2 to vibrate, and the compound fertilizer particles are poured into the circular frame 5. At this time, the compound fertilizer particles are affected by gravity and are discharged from the channel formed by the connecting pipe 7 and the discharge hopper 6 to the right end of the screen box body 2 for screening. At the same time, the reciprocating mechanism 8 can drive the two offset discharge hoppers 6 to do reciprocating motion back and forth to continuously change the discharge position, so that the compound fertilizer particles discharged from the discharge hopper 6 are evenly discharged to the right end of the screen box body 2, and are transported to the left by the vibration generated by the vibration mechanism 3. At the same time, the bulking mechanism 9 will scatter the discharged compound fertilizer particles, so that the discharged compound fertilizer particles are evenly distributed and will not pile up on each other, so as to maximize and efficiently utilize the screening area and improve the screening efficiency of the equipment.

[0028] Preferably, as another embodiment of the utility model, the screen box body 2 includes a screening box 21, a discharge port 22, a screen 1 23 and a screen 2 24. The screening box 21 is arranged inside the concave frame 4, and the left end extends to its left side. The discharge port 22 is arranged on the left side of the screening box 21. The inner wall of the screening box 21 is provided with a screen 1 23 and a screen 2 24 from top to bottom. The sieve hole of the screen 1 23 is larger than the sieve hole of the screen 24. The vibration mechanism 3 includes a mounting frame 31, a vibration motor 32, a support rod 33, a connecting frame 34 and a spring 35. The bottom of the screening box 21 is provided with a mounting frame 31, and the mounting frame 31 is provided with a vibration motor 32. A plurality of support rods 33 are provided on both sides of the mounting frame 31. The top of the support rod 33 is provided with a spring 35. The top of the spring 35 is provided with a connecting frame 34 connected to the outer side of the screening box 21.

[0029] It should be noted that the discharge port 22 is composed of a discharge hopper 1, a discharge hopper 2 and a discharge hopper 3, and is sequentially installed on the left side of the screening box 21 from top to bottom, and corresponds to the screen 1 23, the screen 24 and the bottom of the screening box 21, respectively, so as to discharge compound fertilizer particles of different sizes accordingly. When the vibration motor 32 generates vibration, it will be transmitted to the mounting frame 31, the screening box 21, the screen 1 23 and the screen 24, so that the compound fertilizer particles falling on the screen are constantly vibrated and continuously transported to speed up the screening and improve the screening efficiency. Finally, after the screen 1 23 and the screen 2 2 4, compound fertilizer particles of different sizes are obtained, and are discharged from discharge hopper 1, discharge hopper 2 and discharge hopper 3 respectively. During the screening process, the screening box 21 will be affected by the vibration force during the working process. The spring 35 can play a buffering role, reduce the impact force on the screening box 21, protect the screening box 21 and the overall structure thereon, and extend the service life of the equipment. At the same time, the spring 35 can provide a certain degree of damping, so that the screening box 21 has a certain elasticity during the vibration process, reduce the impact and vibration caused by the vibration, and make the operation of the screening box 21 more stable and smooth.

[0030] Preferably, as another embodiment of the utility model, the two connecting pipes 7 are both hoses, and the two connecting pipes 7 are staggered. The reciprocating mechanism 8 includes a motor 81, a synchronous belt 82, a synchronous wheel 83, a follower block 84, a guide shaft 85 and a screw rod 86. The right side of the two discharge hoppers 6 is provided with a follower block 84. The front of the two follower blocks 84 is provided with a threaded through hole and a sliding hole. The inside of the two threaded through holes is transmission-connected with a screw rod 86 with two ends passing through the two vertical ends of the concave frame 4. The inside of the sliding hole is slidably connected with a guide shaft 85 with two ends fixedly connected to the two vertical ends of the concave frame 4 respectively. The two screws A synchronous wheel 83 is provided at the rear end of the rod 86, and the two synchronous wheels 83 are connected by a synchronous belt 82. A motor 81 is provided on the rear side of the concave frame 4, and the output shaft is coaxially connected to the rear end of one of the screw rods 86. The bulk material mechanism 9 includes a rack 91, a gear 92, a vertical rod 93 and a stirring blade 94. The left sides of the two discharging hoppers 6 are rotatably connected to a vertical rod 93 whose lower end extends to the inside of the screening box 21. The lower end of the vertical rod 93 is provided with a stirring blade 94. The upper ends of the two vertical rods 93 are provided with gears 92. The gear 92 is transmission-connected to a rack 91 whose two ends are fixedly connected to the two vertical ends of the concave frame 4.

[0031] In this embodiment, the starting motor 81 can drive one of the screw rods 86 to rotate, and because the two screw rods 86 are transmitted through the synchronous belt 82 and the synchronous wheel 83, the two screw rods 86 can rotate and transmit with the threaded through hole on the follower block 84, so that the follower block 84 and the discharge hopper 6 thereon move back and forth, and the two missing discharge hoppers 6 move back and forth, so that the compound fertilizer particles discharged from the discharge hopper 6 can be evenly sprinkled on the screen 23, and in the process of the movement of the discharge hopper 6, the vertical rod 93 thereon will move accordingly, and at the same time, the gear 92 on the vertical rod 93 will mesh with the rack 91, so that the vertical rod 93 and the stirring blade 94 rotate, so that the stirring blade 94 breaks up the scattered compound fertilizer particles to avoid mutual accumulation, wherein the two misplaced connecting pipes 7 can avoid being blocked and unable to move during the movement, and the hose has flexibility and bendability, can more easily adapt to complex working environments and layout requirements, and can move with the discharge hopper 6.

[0032] Working principle: The vibration motor 32 generates vibration and transmits it to the screening box 21, the screen 1 23 and the screen 2 24. During this process, the spring 35 can buffer the screening box 21, reduce the impact force on the screening box 21, and extend the service life of the equipment. The compound fertilizer particles are poured into the circular frame 5, and the compound fertilizer particles are discharged from the channel formed by the hose and the discharge hopper 6, and fall on the right end of the screen 1 23 to be screened by the screen 1 23 and the screen 2 24 into compound fertilizer particles of different sizes, and then discharged from the discharge port 22. During this process, the motor 81 drives one of the screw rods 86 to rotate, and drives a screw rod 86 through the transmission action of the synchronous belt 82 and the synchronous wheel 83. , so that the two screw rods 86 can rotate, and in the process of rotation, the screw rod 86 will transmit with the threaded through hole on the follower block 84, so that the follower block 84 and the discharge hopper 6 thereon will reciprocate, and the two missing discharge hoppers 6 will reciprocate, so that the compound fertilizer particles discharged from the discharge hopper 6 can be evenly sprinkled on the screen 23, and at the same time, the vertical rod 93 on the discharge hopper 6 will move accordingly, and the gear 92 on the vertical rod 93 will mesh with the rack 91, thereby driving the vertical rod 93 and the stirring blade 94 to rotate, so that the stirring blade 94 breaks up the scattered compound fertilizer particles to avoid mutual accumulation, so that the compound fertilizer particles are evenly distributed and will not accumulate during the screening process, thereby improving the screening efficiency.

[0033] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "certain embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A multi-stage screening device for compound fertilizer processing, characterized in that: The invention comprises a screen box body (2), a vibration mechanism (3) and a concave frame (4), wherein the vibration mechanism (3) is arranged at the bottom of the screen box body (2), the right end of the screen box body (2) is arranged on the inner side of the concave frame (4), and the two vertical ends of the concave frame (4) are respectively located on the front and rear sides of the screen box body (2), the top of the concave frame (4) is provided with a circular frame (5), the inner side of the concave frame (4) is provided with two discharging hoppers (6) which are staggered on the left and right, the tops of the two discharging hoppers (6) and the top of the concave frame (4) are connected by connecting pipes (7), the concave frame (4) is provided with a reciprocating mechanism (8) for driving the discharging hopper (6) to move back and forth, and the discharging hopper (6) is provided with a bulk material mechanism (9) which extends to the inside of the screen box body (2).

2. A multi-stage screening device for compound fertilizer processing according to claim 1, characterized in that: The screen box body (2) comprises a screen box (21), a discharge port (22), a first screen (23) and a second screen (24); the screen box (21) is arranged inside the concave frame (4), and the left end thereof extends to the left thereof; the discharge port (22) is arranged on the left side of the screen box (21); the inner side wall of the screen box (21) is provided with a first screen (23) and a second screen (24) in sequence from top to bottom; the sieve holes of the first screen (23) are larger than the sieve holes of the second screen (24).

3. A multi-stage screening device for compound fertilizer processing according to claim 2, characterized in that: The vibration mechanism (3) comprises a mounting frame (31), a vibration motor (32), a support rod (33), a connecting frame (34) and a spring (35); the bottom of the screening box (21) is provided with a mounting frame (31); the vibration motor (32) is provided on the mounting frame (31); a plurality of support rods (33) are provided on both sides of the mounting frame (31); the top of the support rod (33) is provided with a spring (35); the top of the spring (35) is provided with a connecting frame (34) connected to the outside of the screening box (21).

4. A multi-stage screening device for compound fertilizer processing according to claim 1, characterized in that: The two connecting pipes (7) are both hoses, and the two connecting pipes (7) are staggered.

5. A multi-stage screening device for compound fertilizer processing according to claim 1, characterized in that: The reciprocating mechanism (8) comprises a motor (81), a synchronous belt (82), a synchronous wheel (83), a follower block (84), a guide shaft (85) and a screw rod (86). The right sides of the two discharge hoppers (6) are each provided with a follower block (84). The front sides of the two follower blocks (84) are each provided with a threaded through hole and a sliding hole. The insides of the two threaded through holes are both drivingly connected with screw rods (86) whose two ends penetrate through the two vertical ends of the concave frame (4). The insides of the sliding holes are slidingly connected with a guide shaft (85) whose two ends are respectively fixedly connected to the two vertical ends of the concave frame (4). The rear ends of the two screw rods (86) are provided with synchronous wheels (83). The two synchronous wheels (83) are drivingly connected to each other via the synchronous belt (82). The rear side of the concave frame (4) is provided with a motor (81) whose output shaft is coaxially connected to the rear end of one of the screw rods (86).

6. A multi-stage screening device for compound fertilizer processing according to claim 2, characterized in that: The bulk material mechanism (9) comprises a rack (91), a gear (92), a vertical rod (93) and a stirring blade (94); the left sides of the two discharge hoppers (6) are rotatably connected to a vertical rod (93) whose lower end extends into the interior of the screening box (21); the lower end of the vertical rod (93) is provided with a stirring blade (94); the upper ends of the two vertical rods (93) are provided with a gear (92); the gear (92) is transmission-connected to a rack (91) whose two ends are fixedly connected to the two vertical ends of the concave frame (4).

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