Fertilizer processing and screening device

Abstract

The utility model relates to the field of fertilizer processing, and discloses a fertilizer processing and screening device which comprises a base and a screening cylinder, the lower half portion of the screening cylinder is fixedly arranged to be an integrated semi-arc screening plate body, the two ends of the top of the base are each fixedly provided with two sets of vertical beam plates, and the screening cylinder is transversely arranged over the base through the four sets of vertical beam plates at the top of the base. The elastic connecting structures are arranged between the two ends of the screening barrel and the vertical beam plates on the two sides of the base; the intermittent lifting structures are arranged at the two opposite corners of the base, and the intermittent lifting structures and the elastic connecting structures are matched to be used for intermittently lifting the screening barrel and vertically oscillating the screening barrel; and the material rolling structure is arranged in the screening cylinder and used for driving the fertilizer in the screening cylinder to roll multiple times to pass through the semi-arc screening plate body to be screened, through the structural design of the screening cylinder and the synergistic effect of all parts, the contact opportunity and frequency of the fertilizer and the screening plate are increased, and the screening efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fertilizer processing, specifically to a fertilizer processing screening device. BACKGROUND

[0002] In the modern fertilizer production and processing process, the screening link plays a vital role in guaranteeing the quality of fertilizer. The traditional fertilizer screening device has many limitations, which seriously restricts the improvement of production efficiency and product quality.

[0003] Most of the traditional screening devices adopt simple fixed sieve plate structure, such as horizontal placement or slightly inclined sieve plate. During the screening process, the fertilizer only relies on the gravity acting on the sieve plate to slide slowly, and this passive movement mode makes the contact opportunity of fertilizer particles with the sieve plate limited. Many fertilizer particles are accumulated on the sieve plate, which cannot be fully screened, resulting in extremely low screening efficiency. In order to achieve the expected screening effect, a large amount of time is often consumed, which prolongs the whole fertilizer production cycle and cannot meet the market demand for rapid supply of fertilizer.

[0004] From the screening effect, the traditional device lacks effective turning mechanism, and the turning of fertilizer on the sieve plate is insufficient and uneven. Some larger particles of fertilizer may cover smaller particles, resulting in some fertilizer not meeting the particle size requirement mixed into the finished product, which reduces the quality and consistency of the product. Therefore, we propose a fertilizer processing screening device. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the utility model provides a fertilizer processing screening device, which solves the above problems.

[0007] (II) Technical scheme

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme: a fertilizer processing screening device, comprising a base and a screening cylinder, the lower half of the screening cylinder is integrally provided with a semicircular sieve plate body, the top of the base is provided with two groups of vertical vertical beam plates on both ends, the screening cylinder is horizontally arranged on the top of the base through the four groups of vertical beam plates on the top of the base, and further comprises:

[0009] The elastic connection structure is arranged between the two ends of the screening cylinder and the vertical beam plates on the two sides of the base; the elastic connection structure is used for the up-down reciprocating displacement of the screening cylinder;

[0010] The intermittent lifting structure is arranged at the diagonally opposite corners of the base, and the intermittent lifting structure and the elastic connection structure are used for lifting the screening cylinder intermittently and oscillating the screening cylinder up and down;

[0011] The material roller structure installed inside the screening cylinder is used to drive the fertilizer inside the screening cylinder to tumble multiple times through the semi-circular arc screen plate for screening.

[0012] Preferably, a feeding gate is hinged at the top center of the screening cylinder, and a rectangular groove with an opening on one side is provided on the base directly below the screening cylinder, and a collection box is slidably engaged in the rectangular groove on the base.

[0013] Preferably, the material collection box is located directly below the screening cylinder, corresponding to the semi-circular arc screen plate, and the length and width of the material collection box are greater than the length and width of the screening cylinder.

[0014] Preferably, the elastic connection structure includes a limiting column, a horizontal base plate, and a spring element. The four sets of vertical beam plates on the base are each provided with a through-type vertical sliding groove on both sides. Horizontal base plates are fixedly installed at both ends of the screening cylinder near the two sides. The four sets of horizontal base plates at both ends of the screening cylinder correspond one-to-one with the four sets of vertical beam plates on the base. Each set of horizontal base plates on the end side of the screening cylinder extends laterally and slides into the vertical sliding groove of each set of vertical beam plates. A vertical limiting column is fixedly installed in the vertical sliding groove of each set of vertical beam plates. Each set of horizontal base plates is perpendicular to and slidably sleeved together with the limiting column in each set of vertical beam plates. A spring element sleeved on the limiting column is fixedly connected between the bottom end of each set of horizontal base plates and the bottom inner wall of the vertical sliding groove.

[0015] Preferably, the intermittent lifting structures on both sides of the base are centrally symmetrically distributed. The intermittent lifting structure includes a servo motor II, a lifting and tilting plate, and a linkage crossbar. On one side of the two sets of vertical beams diagonally distributed on the top outer wall of the base, a vertical plate is fixedly installed. Lifting and tilting plates are rotatably installed on the side walls of the two sets of vertical plates that are close to each other at their top ends. A servo motor II is fixedly installed on the opposite side of the top ends of the two sets of vertical plates. The output shaft of the servo motor II passes through the vertical plate and is fixedly connected to the lifting and tilting plate. An integrated linkage crossbar is fixed on the end face of the two sets of horizontal base plates that are diagonally distributed and close to the vertical plates on the screening cylinder. The lifting and tilting plates on both sides of the base are centrally symmetrical and extend close to each other, respectively attached to the bottom of the two sets of linkage crossbars. The end of the lifting and tilting plate that is attached to the linkage crossbar is semi-circular.

[0016] Preferably, the rolling structure comprises a servo motor one, a center horizontal shaft, a horizontal plate piece and a scraping brush strip, the center horizontal shaft is rotatably connected between the center of the inner walls of the two ends of the screening cylinder, a servo motor one is fixedly installed at the center of the outer wall of one end of the screening cylinder, and the output shaft of the servo motor one is fixedly connected with the center horizontal shaft penetrating through the end surface outer wall of the screening cylinder, the center horizontal shaft is integrally and flushly provided with symmetrical horizontal plate pieces on both sides, and the two end side outer walls of the horizontal plate piece are slidably attached to the two end side inner walls of the screening cylinder, the horizontal plate pieces on both sides of the center horizontal shaft are horizontally arranged and form a closed space with the upper half inner wall of the screening cylinder, that is, the two horizontal plate pieces and the center horizontal shaft divide the inner part of the screening cylinder into two equal storage spaces, and the side of the two horizontal plate pieces away from each other is fixedly provided with a scraping brush strip attached to the inner wall of the screening cylinder.

[0017] Preferably, the horizontal plate pieces on both sides of the center horizontal shaft are respectively provided with a plurality of semicircular ring pieces corresponding to the upper surface and the lower surface, and the plurality of semicircular ring pieces on the horizontal plate piece are transversely and equidistantly distributed, and a plurality of parallel horizontal rod pieces are fixedly connected between the two adjacent semicircular ring pieces.

[0018] (Three) beneficial effects

[0019] Compared with the prior art, the present application provides a fertilizer processing and screening device, which has the following beneficial effects:

[0020] High screening efficiency: compared with the traditional fertilizer screening device, the device adopts an intermittent lifting structure and an elastic connection structure to cooperate with each other, so that the screening cylinder can oscillate up and down. This oscillation action can promote the active movement of the fertilizer in the screening cylinder, increase the contact opportunity and frequency of the fertilizer and the screen plate, and thus significantly improve the screening efficiency. The traditional device may only rely on gravity or simple vibration for screening, and the screening speed is relatively slow, while the device greatly shortens the time required for screening.

[0021] Enhanced screening effect: the rolling structure in the device can drive the fertilizer to roll through the semicircular arc screen plate body for screening multiple times. In the traditional screening equipment, the movement of the fertilizer is often single and limited, which can easily lead to insufficient contact of part of the fertilizer with the screen plate, affecting the screening quality. The rolling structure of the device, especially the semicircular ring pieces and horizontal rod pieces arranged on the upper and lower surfaces of the horizontal plate piece, can further assist the turning when driving the fertilizer to roll, ensuring that the fertilizer is fully rolled in the screening cylinder, so as to realize more accurate screening and improve the precision and quality of screening.

[0022] Reduce the screen panel blockage: the device in the material scraping brush strip always adheres to the semicircular arc screen plate body inner wall during the turnover of the cross plate piece. In the traditional screening process, the material is easy to block the screen plate aperture, reduces the screening efficiency and effect. The device can automatically complete the scraping of the inner surface of the semicircular arc screen plate body, avoid the material blockage, keep the unobstructed of the screen plate, reduce the time and labor cost of stopping cleaning due to the screen plate blockage, improve the continuous operation ability and stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a cross-sectional view schematic diagram of the screening cylinder of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the center horizontal shaft and cross plate piece of the utility model;

[0026] Figure 4 It is Figure 1 A local enlarged schematic diagram in the figure.

[0027] In the figure: 1, base; 2, screening cylinder; 3, semicircular arc screen plate body; 4, feeding door; 5, vertical beam plate; 6, material collecting box; 7, vertical sliding groove; 8, limiting stand column; 9, horizontal base plate; 10, spring piece; 11, servo motor one; 12, center horizontal shaft; 13, cross plate piece; 14, material scraping brush strip; 15, semicircular ring piece; 16, cross rod piece; 17, vertical stand plate; 18, servo motor two; 19, lifting turnover plate; 20, linkage cross rod. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] Please refer to Figures 1-4 A fertilizer processing and screening device, including base 1 and screening cylinder 2, the lower half of screening cylinder 2 is integrally arranged as semicircular arc screen plate body 3, two groups of vertical vertical beam plates 5 are arranged on both ends of the top of base 1, and screening cylinder 2 is arranged on the top of base 1 through four groups of vertical beam plates 5 on the top of base 1, further comprising:

[0030] The elastic connection structure is arranged between the two ends of screening cylinder 2 and the two vertical beam plates 5 on the top of base 1; the elastic connection structure is used for the up-down reciprocating displacement of screening cylinder 2;

[0031] An intermittent lifting structure is set at two diagonally opposite corners on the base 1. This intermittent lifting structure, in conjunction with the elastic connection structure, is used to intermittently lift the screening cylinder 2 and cause the screening cylinder 2 to oscillate up and down.

[0032] The material rolling structure set inside the screening cylinder 2 is used to drive the fertilizer inside the screening cylinder 2 to roll multiple times through the semi-circular arc screen plate 3 for screening.

[0033] A feeding gate 4 is hinged at the top center of the screening cylinder 2. A rectangular groove with an opening on one side is provided on the base 1 directly below the screening cylinder 2, and a collection box 6 is slidably engaged in the rectangular groove of the base 1.

[0034] The collection box 6 is located directly below the screening cylinder 2, which is positioned below the semi-circular arc screen plate 3. The length and width of the collection box 6 are greater than the length and width of the screening cylinder 2, ensuring that the fertilizer screened off from the semi-circular arc screen plate 3 can be completely collected.

[0035] The elastic connection structure includes a limiting column 8, a horizontal base plate 9, and a spring component 10. Four sets of vertical beam plates 5 on the base 1 are each provided with through-type vertical sliding grooves 7 on both sides. Horizontal base plates 9 are fixedly installed at both ends of the screening cylinder 2 near the sides, and the four sets of horizontal base plates 9 at both ends of the screening cylinder 2 correspond one-to-one with the four sets of vertical beam plates 5 on the base 1. Each set of horizontal base plates 9 extends laterally on the end side of the screening cylinder 2 and slides into the vertical sliding grooves 7 of each set of vertical beam plates 5. Vertical limiting columns 8 are fixedly installed in each vertical sliding groove 7, and each set of horizontal base plates 9 is perpendicular to and slidably sleeved together with the limiting columns 8 in each set of vertical beam plates 5. A spring member 10 sleeved on the limiting column 8 is fixedly connected between the bottom end of each set of horizontal base plates 9 and the bottom inner wall of the vertical sliding groove 7. When the screening cylinder 2 is subjected to external force, the horizontal base plates 9 can slide up and down along the vertical sliding groove 7, and the spring member 10 can provide elastic support, so that the screening cylinder 2 can be reset up and down.

[0036] The intermittent lifting structure on the base 1 is centrally symmetrically distributed, and the intermittent lifting structure comprises a second servo motor 18, a lifting and overturning plate 19 and a linkage cross rod 20. One side of each of the two groups of vertical beam plates 5 diagonally distributed on the top outer wall of the base 1 is fixedly installed with a vertical plate 17, and the lifting and overturning plate 19 is rotatably installed on the top end of the vertical plate 17 on the side wall corresponding to each other. The top end of each of the two groups of vertical plates 17 is fixedly installed with a second servo motor 18 corresponding to the side wall away from each other, and the output shaft of the second servo motor 18 is fixedly connected with the lifting and overturning plate 19 penetrating through the vertical plate 17. An integrated linkage cross rod 20 is fixedly arranged on the end face of each of the two groups of horizontal base plates 9 corresponding to the vertical plate 17 and diagonally distributed on the screening cylinder 2. The lifting and overturning plates 19 on the two sides of the base 1 are symmetrically and close to each other, and are respectively correspondingly attached to the bottom of the two groups of linkage cross rods 20. One end of the lifting and overturning plate 19 corresponding to the linkage cross rod 20 is semicircular.

[0037] The rolling structure comprises a first servo motor 11, a center cross shaft 12, a horizontal plate 13 and a material scraping brush 14. The center cross shaft 12 is rotatably connected between the center of the inner wall of the two ends of the screening cylinder 2. The first servo motor 11 is fixedly installed on the center of the outer wall of one end of the screening cylinder 2, and the output shaft of the first servo motor 11 is fixedly connected with the center cross shaft 12 penetrating through the end face outer wall of the screening cylinder 2. The horizontal plate 13 is integrally and symmetrically arranged on the two sides of the center cross shaft 12 and flush. The two end side outer walls of the horizontal plate 13 are slidably attached to the two end side inner walls of the screening cylinder 2. The horizontal plate 13 on the two sides of the center cross shaft 12 is horizontally arranged and forms a closed space with the upper half inner wall of the screening cylinder 2, that is, the two horizontal plates 13 and the center cross shaft 12 divide the inner part of the screening cylinder 2 into two equal storage spaces. The material scraping brush 14 is fixedly arranged on the side of each of the two horizontal plates 13 away from each other and attached to the inner wall of the screening cylinder 2. When the material scraping brush 14 on the side of each of the two horizontal plates 13 is always attached to the inner wall of the screening cylinder 2 for overturning, it can repeatedly scrape the semicircular arc sieve plate body 3, that is, the inner surface of the semicircular arc sieve plate body 3 can be automatically scraped during the screening process, avoiding the blocking of the semicircular arc sieve plate body 3 by the material.

[0038] The horizontal plate 13 on the two sides of the center cross shaft 12 is fixedly provided with a plurality of semicircular ring members 15 corresponding to the upper surface and the lower surface, respectively. The plurality of semicircular ring members 15 on the horizontal plate 13 are transversely and equidistantly distributed. A plurality of parallel cross rod members 16 are fixedly connected between each of the two groups of semicircular ring members 15. These semicircular ring members 15 and cross rod members 16 can further assist the overturning of the fertilizer when the horizontal plate 13 rotates, ensuring that the fertilizer fully tumbles in the screening cylinder 2, achieving better screening effect.

[0039] Working principle: before the device starts, first open the top center hinge of the screening cylinder 2 feeding door 4, put the fertilizer to be screened into the screening cylinder 2, at this time the fertilizer to be screened will be in the center of the horizontal axis 12 both sides of the horizontal plate 13 and the closed space formed by the inner wall of the upper half of the screening cylinder 2, the driving servo motor 11 is driven by the center horizontal shaft 12 and the horizontal plate 13 on both sides of the center horizontal shaft 12 to overturn, and the overturning direction is the direction of the horizontal plate 13 provided with semicircular ring 15 and horizontal rod 16, with the process of continuously overturning of the horizontal plate 13, the fertilizer will be turned over many times in the semicircular cylinder space formed by the horizontal plate 13 and the semicircular arc sieve plate 3, and the fertilizer will be screened once every time it passes through the semicircular arc sieve plate 3, at the same time, the scraping brush strip 14 on the side of the horizontal plate 13 can repeatedly sweep the semicircular arc sieve plate 3 during the overturning of the horizontal plate 13, that is, the sweeping of the inner surface of the semicircular arc sieve plate 3 can be automatically completed during the screening process, which avoids the blocking of the semicircular arc sieve plate 3 caused by the material, improves the practicability and convenience of the device, and the semicircular ring 15 and horizontal rod 16 on the upper and lower surfaces of the horizontal plate 13 can further assist the overturning of the fertilizer when the fertilizer is rolled in the screening cylinder 2, so as to ensure that the fertilizer is fully rolled in the screening cylinder 2 and achieve better screening effect;

[0040] During screening, the two groups of servo motors two 18 at the opposite corners of the base 1 are synchronously driven, and the control of the two sides servo motor two 18 drives the lifting turnover plate 19 to rotate in the opposite direction, during the periodic overturning process of the two sides lifting turnover plate 19, it will indirectly touch and lift to a certain height and separate from each other after contacting with the linkage horizontal rod 20, at this time, through the two groups of linkage horizontal rod 20 and drive multiple groups of horizontal base plate 9 and screening cylinder 2 as a whole along the limiting column 8 in the vertical beam plate 5 to move up, and the elongation of the spring 10 is deformed, after the lifting turnover plate 19 and the linkage horizontal rod 20 are separated, the screening cylinder 2 will quickly move down under the action of gravity and spring 10, and will move up and down reciprocatingly under the action of spring 10, so as to further improve the screening effect of the fertilizer in the screening cylinder 2 during the rolling and screening of the fertilizer; finally, the screened fertilizer falls through the screen hole of the semicircular arc sieve plate 3 and falls into the material collecting box 6 below for collection. The material collecting box 6 is slidingly connected in the rectangular groove of the base 1, which is convenient for taking out and processing the screened fertilizer.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fertilizer processing screening apparatus, characterized by: The system includes a base (1) and a screening cylinder (2). The lower half of the screening cylinder (2) is fixed as an integrated semi-circular arc screen plate (3). Two sets of vertical beam plates (5) are fixed on both ends of the top of the base (1). The screening cylinder (2) is horizontally positioned on the top of the base (1) via the four sets of vertical beam plates (5). The system also includes: An elastic connection structure is provided between the two ends of the screening cylinder (2) and the two vertical beam plates (5) on both sides of the base (1). This elastic connection structure is used for the screening cylinder (2) to move up and down. Intermittent lifting structures are set at two diagonal corners on the base (1). These intermittent lifting structures, in conjunction with the elastic connection structure, are used to intermittently lift the screening cylinder (2) and cause the screening cylinder (2) to oscillate up and down. The material rolling structure is set inside the screening cylinder (2). This material rolling structure is used to drive the fertilizer inside the screening cylinder (2) to roll multiple times through the semi-circular arc screen plate (3) for screening.

2. A fertilizer processing and screening apparatus according to claim 1, characterized in that: The top center of the screening cylinder (2) is hinged with a feeding gate (4), and the base (1) is provided with a rectangular groove with an opening on one side directly below the screening cylinder (2), and a collection box (6) is slidably engaged in the rectangular groove of the base (1).

3. A fertilizer processing and screening apparatus according to claim 2, wherein: The collection box (6) is located directly below the screening cylinder (2) corresponding to the semi-circular arc screen plate (3), and the length and width of the collection box (6) are greater than the length and width of the screening cylinder (2).

4. A fertilizer processing and screening apparatus as defined in claim 1, wherein: The elastic connection structure includes a limiting column (8), a horizontal base plate (9), and a spring (10). The four sets of vertical beam plates (5) on the base (1) are each provided with a through-type vertical sliding groove (7) on both sides. Horizontal base plates (9) are fixedly installed at both ends of the screening cylinder (2) near the sides. The four sets of horizontal base plates (9) at both ends of the screening cylinder (2) correspond one-to-one with the four sets of vertical beam plates (5) on the base (1). Each set of horizontal base plates (9) on the end side of the screening cylinder (2)... The horizontal extension corresponds to the vertical sliding groove (7) opened in each set of vertical beam plates (5). Each set of vertical beam plates (5) is fixedly installed in the vertical sliding groove (7). Each set of horizontal base plates (9) is perpendicular to and slidably sleeved together with the limiting column (8) in each set of vertical beam plates (5). The bottom end of each set of horizontal base plates (9) is fixedly connected to the bottom inner wall of the vertical sliding groove (7) with a spring (10) sleeved on the limiting column (8).

5. A fertilizer processing and screening apparatus as claimed in claim 4, wherein: The two intermittent lifting structures on the base (1) are centrally symmetrically distributed, the intermittent lifting structure comprises a servo motor two (18), a lifting turnover plate (19) and a linkage cross rod (20), one side of each of the two groups of vertical beam plates (5) diagonally distributed on the top outer wall of the base (1) is fixedly installed with a vertical plate (17), and the top end of each of the two groups of vertical plates (17) is rotatably installed with a lifting turnover plate (19) on the side wall corresponding to each other, the top end of each of the two groups of vertical plates (17) is fixedly installed with a servo motor two (18) corresponding to the side wall away from each other, and the output shaft of the servo motor two (18) is fixedly connected with the lifting turnover plate (19) penetrating through the vertical plate (17), the end face of each of the two groups of horizontal base plates (9) corresponding to the vertical plate (17) and diagonally distributed on the screening cylinder (2) is fixedly provided with an integrated linkage cross rod (20), and the two lifting turnover plates (19) on the base (1) are symmetrically and close to each other about the center and respectively correspond to the bottom of the two linkage cross rods (20), one end of the lifting turnover plate (19) corresponding to the linkage cross rod (20) is semicircular.

6. A fertilizer processing and screening apparatus as claimed in claim 2, wherein: The rolling structure comprises a servo motor one (11), a center cross shaft (12), a horizontal plate (13) and a material scraping brush strip (14), the center cross shaft (12) is rotatably connected between the center of the inner walls of the two ends of the screening cylinder (2), the servo motor one (11) is fixedly installed at the center of the outer wall of one end of the screening cylinder (2), and the output shaft of the servo motor one (11) is fixedly connected with the center cross shaft (12) penetrating through the end face outer wall of the screening cylinder (2), the two sides of the center cross shaft (12) are integrally and symmetrically provided with horizontal plate (13) flush, and the two end side outer walls of the horizontal plate (13) are slidingly attached to the two end side inner walls of the screening cylinder (2), the two horizontal plate (13) on the center cross shaft (12) are horizontally arranged and form a closed space with the upper half inner wall of the screening cylinder (2), that is, the two horizontal plate (13) and the center cross shaft (12) divide the inner part of the screening cylinder (2) into two equal storage spaces, and the edge side of each of the two horizontal plate (13) away from each other is fixedly provided with a material scraping brush strip (14) attached to the inner wall of the screening cylinder (2).

7. A fertilizer processing and screening apparatus as claimed in claim 6, wherein: The two horizontal plate (13) on the center cross shaft (12) are respectively fixedly provided with a plurality of semicircular ring members (15) corresponding to the upper surface and the lower surface, and the plurality of semicircular ring members (15) on the horizontal plate (13) are transversely and equidistantly distributed, and a plurality of parallel cross rod members (16) are fixedly connected between each of the two adjacent groups of semicircular ring members (15).

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