Fertilizer granule screening device

Abstract

This utility model relates to the field of fertilizer screening technology, and more particularly to a fertilizer granule screening device, including a screening machine body; it also includes blades. A feed inlet is provided at the top of the screening machine body, and multiple equally spaced sliding strips are slidably connected inside the feed inlet. Blades are mounted on the top surface of the sliding strips, and limit components are provided on the front and rear sides of the sliding strips. A scraping component is installed inside the screening machine body, and connecting components are installed at the left and right ends of the sliding strips. Mounting plates are provided on the front and rear sides of the connecting components, and a transmission mechanism is provided on the outside of the feed inlet. The transmission mechanism is used to drive the sliding strips to slide left and right. This utility model significantly improves the screening efficiency of fertilizer granules by setting slidable blades inside the feed inlet. When agglomerated fertilizer granules enter the feed inlet, the blades cut them into uniform small pieces by sliding back and forth, solving the problem in traditional screening processes where large agglomerated granules are not dispersed by the screen and directly roll to the discharge outlet.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer screening technology, and in particular to a fertilizer granule screening device. Background Technology

[0002] Fertilizer granule screening equipment is a mechanical device used to classify fertilizers according to particle size. It is usually composed of a vibrating screen, a drum screen, or an air classifier. Its working principle is to separate particles according to size through screen vibration, drum rotation, or wind force to ensure product uniformity. This device can improve fertilizer quality and reduce agglomeration. It is suitable for screening granules of compound fertilizer, urea, etc. It has the characteristics of high efficiency and high degree of automation and is one of the key equipment in fertilizer production lines.

[0003] Existing fertilizer granule screening devices do not have a pre-crushing function for agglomerated granules. When feeding, large agglomerated granules that are damp will fall directly onto the screen surface. These agglomerated fertilizers are often heavy and will slide directly to the discharge port before being shaken apart by the screen, resulting in unsatisfactory screening effect.

[0004] Therefore, to address the problem that existing fertilizer granule screening devices cannot pre-crush agglomerated fertilizers, resulting in low screening efficiency, a fertilizer granule screening device can be designed. Utility Model Content

[0005] In order to overcome the problem that existing fertilizer granule screening devices cannot pre-crush agglomerated fertilizers, resulting in low screening efficiency.

[0006] The technical solution of this utility model is as follows: a fertilizer granule screening device, including a screening machine body; and also including blades. The top of the screening machine body is provided with a feed inlet, and multiple equally spaced sliding strips are slidably connected inside the feed inlet. Blades are installed on the top surface of the sliding strips, and limit components are provided on the front and rear sides of the sliding strips. A scraping component is installed inside the screening machine body, and connecting components are installed at the left and right ends of the sliding strips. Mounting plates are provided on the front and rear sides of the connecting components, and a transmission mechanism is provided on the outside of the feed inlet. The transmission mechanism is used to drive the sliding strips to slide left and right.

[0007] Preferably, by setting a transmission mechanism, the connecting component moves left and right through the mounting plate during operation. The connecting component drives the sliding strip and the blade to move synchronously under the restriction of the limiting component. When feeding, the fertilizer particles first come into contact with the blade. The blade can cut the large clumps of fertilizer into small pieces, ensuring that they can be shaken apart by the screen during screening, thus improving screening efficiency. This solves the problem that existing fertilizer particle screening devices do not have a pre-crushing function for clumps of particles. When feeding, large clumps of damp fertilizer will fall directly onto the screen surface. These clumps of fertilizer are often heavy and will slide directly to the discharge port before being shaken apart by the screen, resulting in unsatisfactory screening effect.

[0008] Preferably, the limiting component includes limiting strips, with limiting strips installed on both the front and rear sides of the sliding strip, and limiting grooves opened on the side wall of the feed inlet corresponding to the positions of the limiting strips. The sliding strip is slidably connected to the feed inlet through the limiting strips.

[0009] Preferably, the scraping component includes a mounting frame and a scraper. The inside of the feed inlet is provided with mounting frames at both ends of the corresponding sliding bar. The scraper is fixed on the mounting frame, and the sliding bar is slidably connected to the corresponding mounting frame.

[0010] Preferably, the connecting assembly includes a connecting plate and fixing screws. The left and right ends of the multiple sliding bars are provided with connecting plates, and multiple fixing screws are connected to the connecting plates. The connecting plates are fixed to the sliding bars by the fixing screws.

[0011] Preferably, the transmission mechanism includes a drive component and a limiting component. The drive component is used to drive the blade to move left and right, and the limiting component is used to limit the direction of movement of the blade.

[0012] Preferably, the drive assembly includes a first fixed seat, a lead screw, a drive motor, and a movable seat. Two first fixed seats are installed on the front side of the feed inlet, and a lead screw is rotatably connected between the two first fixed seats. A drive motor is installed on the right side of the right first fixed seat. The drive motor is used to drive the lead screw to rotate. A movable seat is threadedly connected to the outer side of the lead screw. The movable seat is fixed to the front mounting plate by a support rod.

[0013] Preferably, the limiting assembly includes a second fixed seat, a limiting rod, and a limiting block. Two second fixed seats are installed on the rear side of the feed inlet, and a limiting rod is installed between the two second fixed seats. The limiting rod is slidably connected to the outer side of the limiting block, and the limiting block is fixed to the rear mounting plate by a support rod.

[0014] The beneficial effects of this utility model are:

[0015] By incorporating sliding blades inside the feed inlet, the screening efficiency and quality of fertilizer granules are significantly improved. When clumps of fertilizer granules enter the feed inlet, the blades cut them into uniform small pieces through the force of their back-and-forth sliding motion. This effectively solves the problem of large clumps of granules not being dispersed by the screen and rolling directly to the discharge outlet during traditional screening. This innovation not only reduces the waste of unscreened granules but also ensures that the screened fertilizer granules are of uniform size, thereby improving the overall quality of the product. In addition, the dynamic cutting action of the blades avoids screen clogging, extends the service life of the equipment, and reduces the frequency of manual cleaning, greatly improving production efficiency. This improvement provides a more reliable guarantee for the subsequent packaging and use of fertilizers, and has significant economic benefits and practical value. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the feed inlet of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the connecting component of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the sliding bar of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the transmission mechanism of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Screening machine body; 2. Feed inlet; 3. Sliding bar; 4. Blade; 51. Limiting bar; 61. Mounting frame; 62. Scraper; 71. Connecting plate; 72. Fixing screw; 8. Mounting plate; 91. First fixed seat; 92. Lead screw; 93. Drive motor; 94. Moving seat; 95. Second fixed seat; 96. Limiting rod; 97. Limiting block. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a fertilizer granule screening device, including a screening machine body 1 and blades 4. The top of the screening machine body 1 is provided with a feed inlet 2. Multiple equally spaced sliding strips 3 are slidably connected inside the feed inlet 2. Blades 4 are installed on the top surface of the sliding strips 3. Limiting components are provided on the front and rear sides of the sliding strips 3. A scraping component is installed inside the screening machine body 1. Connecting components are installed at the left and right ends of the sliding strips 3. Mounting plates 8 are provided on the front and rear sides of the connecting components. A transmission mechanism is provided on the outside of the feed inlet 2. The transmission mechanism is used to drive the sliding strips 3 to slide left and right. By setting the transmission mechanism, the transmission mechanism drives the mounting plates 8 to reciprocate left and right, thereby driving the connecting components to move synchronously. The connecting component is rigidly connected to the sliding bar 3 and the blade 4, and the whole linkage is achieved under the guidance and constraint of the limiting component. When the fertilizer particles enter the working area, they first come into contact with the moving blade 4. At this time, the blade 4 will complete the crushing operation of large clumps of fertilizer and divide them into fine particles that meet the requirements. This pretreatment mechanism effectively ensures that the fertilizer particles can be fully dispersed by the screen in the subsequent screening process, thereby significantly improving the working efficiency of the entire screening system.

[0024] Please see Figures 2-5In this embodiment, the limiting component includes limiting strips 51. Limiting strips 51 are installed on both the front and rear sides of the sliding strip 3. Limiting grooves are formed on the sidewalls of the feed inlet 2 corresponding to the positions of the limiting strips 51. The sliding strip 3 is slidably connected to the feed inlet 2 via the limiting strips 51. By setting the limiting strips 51, the sliding strip 3 moves synchronously within the limiting grooves when it moves, thereby improving the stability of the sliding strip 3's movement. The scraping component includes a mounting frame 61 and a scraper 62. Mounting frames 61 are provided inside the feed inlet 2 corresponding to the left and right ends of the sliding strip 3. The mounting frames 61 are fixed... A scraper 62 is provided, and the sliding strip 3 is slidably connected to the corresponding mounting frame 61. By setting the scraper 62, when the sliding strip 3 moves, the scraper 62 can scrape off the fertilizer adhering to its outer surface, preventing it from spilling to the outside of the feed inlet 2. The connecting component includes a connecting plate 71 and fixing screws 72. The left and right ends of the multiple sliding strips 3 are provided with connecting plates 71, and multiple fixing screws 72 are connected to the connecting plates 71. The connecting plates 71 are fixed to the sliding strips 3 by fixing screws 72. By setting the connecting plates 71 and fixing screws 72, the multiple sliding strips 3 can be linked together to move synchronously.

[0025] Please see Figures 2-5 In this embodiment, the transmission mechanism includes a drive assembly and a limiting assembly. The drive assembly is used to drive the blade 4 to move left and right, and the limiting assembly is used to limit the direction of movement of the blade 4. The drive assembly includes a first fixed seat 91, a lead screw 92, a drive motor 93, and a moving seat 94. Two first fixed seats 91 are installed on the front side of the feed port 2, and the lead screw 92 is rotatably connected between the two first fixed seats 91. The drive motor 93 is installed on the right side of the right first fixed seat 91, and the drive motor 93 is used to drive the lead screw 92 to rotate. The moving seat 94 is threaded through the outer side of the lead screw 92. The moving seat 94 is fixed to the front mounting plate 8 by a support rod. By setting the drive motor 93, it can drive the blade 4 to rotate during operation. When the lead screw 92 rotates, it drives the moving seat 94, which is threaded to it, to move left and right. This, in turn, drives the blade 4 to move left and right via the mounting plate 8 and the connecting plate 71. The limiting assembly includes a second fixed seat 95, a limiting rod 96, and a limiting block 97. Two second fixed seats 95 are installed on the rear side of the feed port 2. A limiting rod 96 is installed between the two second fixed seats 95. A limiting block 97 is slidably connected to the outer side of the limiting rod 96. The limiting block 97 is fixed to the rear mounting plate 8 by a support rod. By setting the limiting rod 96 and the limiting block 97, the rear mounting plate 8 drives the limiting block 97 to slide synchronously along the outer surface of the limiting rod 96 when it moves, thereby improving the stability of the blade 4's movement.

[0026] During operation, fertilizer granules are fed into the screening machine body 1 through the feed inlet 2. The feed inlet 2 contains multiple equally spaced sliding strips 3 that can slide left and right. Each sliding strip 3 is topped with a blade 4. When the drive motor 93 starts, it rotates the lead screw 92 installed between the two first fixed seats 91. The rotating lead screw 92 drives the moving seat 94, which is threaded to it, to move left and right. The moving seat 94 pushes the front mounting plate 8 to move via a support rod. The front mounting plate 8, through a connecting plate 71, drives all the sliding strips 3 to slide left and right synchronously. Simultaneously, the rear mounting plate 8 also moves left and right via a support rod. Connected to the limiting block 97, the limiting block 97 slides on the limiting rod 96 connected between the two second fixed seats 95. Together with the limiting strips 51 on the front and rear sides of the sliding strip 3, it slides in the limiting groove on the side wall of the feed inlet 2, ensuring that the sliding strip 3 and the blade 4 move smoothly left and right. During the movement, the blade 4 cuts the large clumps of fertilizer into small pieces. The scraper 62 installed inside the feed inlet 2 and on the mounting frame 61 corresponding to both ends of the sliding strip 3 will scrape off the fertilizer adhering to the surface of the sliding strip 3. The small pieces of fertilizer pre-crushed by the blade 4 fall into the screening machine body 1 for subsequent screening.

[0027] Through the above steps, in the fertilizer screening operation, the transmission mechanism drives the connecting component to make a horizontal reciprocating motion through the mounting plate 8. The connecting component drives the sliding strip 3 and the blade 4 to move synchronously left and right under the guidance of the limiting component. When fertilizer is put in, the moving blade 4 first crushes the clump fertilizer, cutting the large clumps of material into uniform small particles. This pretreatment method makes it easier for the fertilizer to be effectively dispersed by the screen in the subsequent screening process, thereby significantly improving the operating efficiency of the entire screening system. This solves the problem that the existing fertilizer granule screening device does not have the function of pre-crushing clumps of particles when in use. When feeding, the large clumps of damp particles will fall directly onto the screen surface. These clumps of fertilizer are often heavy and will slide directly to the discharge port before being shaken by the screen, resulting in unsatisfactory screening effect.

Claims

1. A fertilizer granule screening device, comprising a screening machine body (1); characterized in that: It also includes blades (4), a feed inlet (2) is provided on the top of the screening machine body (1), a number of equally spaced sliding strips (3) are slidably connected inside the feed inlet (2), blades (4) are installed on the top surface of the sliding strips (3), limit components are provided on the front and rear sides of the sliding strips (3), a scraping component is installed inside the screening machine body (1), connecting components are installed on the left and right ends of the sliding strips (3), mounting plates (8) are provided on the front and rear sides of the connecting components, and a transmission mechanism is provided on the outside of the feed inlet (2), which is used to drive the sliding strips (3) to slide left and right.

2. The fertilizer granule screening device according to claim 1, characterized in that: The limiting component includes a limiting strip (51). The limiting strip (51) is installed on both the front and rear sides of the sliding strip (3). The side wall of the feed inlet (2) is provided with a limiting groove corresponding to the position of the limiting strip (51). The sliding strip (3) is slidably connected to the feed inlet (2) through the limiting strip (51).

3. The fertilizer granule screening device according to claim 1, characterized in that: The scraping assembly includes a mounting frame (61) and a scraper (62). The inside of the feed inlet (2) is equipped with mounting frames (61) at both ends of the corresponding sliding bar (3). The scraper (62) is fixed on the mounting frame (61), and the sliding bar (3) is slidably connected to the corresponding mounting frame (61).

4. The fertilizer granule screening device according to claim 1, characterized in that: The connecting assembly includes a connecting plate (71) and fixing screws (72). The left and right ends of the multiple sliding bars (3) are provided with connecting plates (71). Multiple fixing screws (72) are connected to the connecting plates (71). The connecting plates (71) are fixed to the sliding bars (3) by fixing screws (72).

5. The fertilizer granule screening device according to claim 1, characterized in that: The transmission mechanism includes a drive component and a limit component. The drive component is used to drive the blade (4) to move left and right, and the limit component is used to limit the direction of movement of the blade (4).

6. The fertilizer granule screening device according to claim 5, characterized in that: The drive assembly includes a first fixed seat (91), a lead screw (92), a drive motor (93), and a movable seat (94). Two first fixed seats (91) are installed on the front side of the feed port (2). The lead screw (92) is rotatably connected between the two first fixed seats (91). The drive motor (93) is installed on the right side of the right first fixed seat (91). The drive motor (93) is used to drive the lead screw (92) to rotate. The movable seat (94) is threaded through the outer side of the lead screw (92). The movable seat (94) is fixed to the front mounting plate (8) by a support rod.

7. The fertilizer granule screening device according to claim 5, characterized in that: The limiting assembly includes a second fixed seat (95), a limiting rod (96) and a limiting block (97). Two second fixed seats (95) are installed on the rear side of the feed port (2). A limiting rod (96) is installed between the two second fixed seats (95). The limiting rod (96) is slidably connected to the outer side of the limiting block (97). The limiting block (97) is fixed to the mounting plate (8) on the rear side by a support rod.

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