Accurate partition screening equipment for slow-release fertilizer particles

Abstract

The utility model relates to the field of fertilizer production and processing, in particular to slow-release fertilizer particle accurate partition screening equipment which comprises a base, a bearing column is fixed on the upper side portion of the base, a funnel is connected to the upper side portion of the bearing column, a first guide rod is arranged on the bottom face of the upper portion of the bearing column, and a first spring is arranged outside the first guide rod in a surrounding mode. A first screening frame is slidably connected to the lower portion of the first guide rod, a discharging opening of the funnel corresponds to the upper portion of the first screening frame, supporting guide rods are arranged on the two sides of the first screening frame, and second springs are arranged on the lower portions of the two supporting guide rods. The double-layer screening design of the first screening frame and the second screening frame is adopted, the screens with different hole diameters are arranged, slow-release fertilizer particles with different sizes can be screened out more accurately, the motor drives the disc to rotate, the inclined block periodically impacts the contact block, the first screening frame vibrates up and down, and therefore the slow-release fertilizer particles can be screened out more accurately. Therefore, the process that the particles pass through the aperture of the screen is accelerated, the screening efficiency is improved, and the particle distribution uniformity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production and processing, and in particular to a device for precise partitioning and screening of slow-release fertilizer granules. Background Technology

[0002] Slow-release fertilizers are widely used in modern agriculture because they release nutrients slowly to meet the needs of crops throughout their growth cycle. However, the size and uniformity of slow-release fertilizer particles have a significant impact on their application effectiveness. Inconsistent particle size not only affects the uniformity of fertilization but may also lead to differences in nutrient release rates, thereby affecting crop growth and yield.

[0003] Traditional screening equipment typically uses one or more screens with fixed aperture sizes, making multi-stage fine grading impossible. This is particularly problematic for specialized applications where strict particle size control is crucial for uniform fertilization. Furthermore, the lack of multi-stage screening mechanisms and effective vibration-based sieving makes it difficult to ensure a consistent proportion of particles of different sizes. This is especially critical in agriculture, as uneven particle size during fertilization affects nutrient release rates and application uniformity, ultimately impacting crop growth.

[0004] Therefore, a special device for precise partitioning and screening of slow-release fertilizer granules was designed to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a device for precise partitioning and screening of slow-release fertilizer granules.

[0006] The technical solution is as follows: A precision partitioning screening device for slow-release fertilizer granules includes a base, a load-bearing column fixed to the upper side of the base, a funnel connected to the upper side of the load-bearing column, a guide rod 1 set on the bottom surface of the upper part of the load-bearing column, a spring 1 arranged around the outside of the guide rod 1, a screening frame 1 slidably connected to the lower part of the guide rod 1, the discharge port of the funnel corresponding to the upper part of the screening frame 1, support guide rods set on both sides of the upper part of the screening frame 1, a spring 2 set at the lower part of both support guide rods, several symmetrical connecting plates set on both sides of the middle part of the screening frame 1, the lower parts of both connecting plates extending downward, and a screening frame 2 is set between these extensions, a screen mesh is set at the inner bottom of both the screening frame 1 and the screening frame 2, a contact block is set on the lower side of the screening frame 1 near the load-bearing column, and a screen is installed on the upper part of the load-bearing column. The motor has an upward-facing output shaft with a disc connected to it. Several inclined blocks are symmetrically arranged around the upper part of the disc. A buffer plate is slidably installed between every two inclined blocks on the upper part of the disc. Guide rods are installed at the sliding points between the buffer plates and the disc, and springs are installed between the guide rods and the buffer plates. Three closely fitted collection boxes are installed on the upper part of the base, with the upper surfaces of the three collection boxes arranged in a hierarchical manner from high to low. The side of the collection box with the highest upper surface is slidably connected to the lower side of the screening frame, and both sides of the upper part of this collection box are slidably connected to the lower ends of two support guide rods. The side of the collection box in the middle is slidably connected to the lower side of the screening frame. The collection box with the lowest upper surface is directly below the screening frame. Each collection box has a discharge pipe connected to its lower side.

[0007] Furthermore, both the inclined block and the buffer plate rotate in contact with the contact block to achieve up-and-down vibration of the screening frame.

[0008] Furthermore, it also includes a ramp stacking base, with a ramp stacking base fixed at the bottom of each collection box, and the discharge ramp at the bottom of each stacking base is connected to the corresponding discharge pipe.

[0009] Furthermore, it also includes a central controller, which is installed on the outside of one of the lowest collection boxes at the top to control the operation of each motor.

[0010] Furthermore, both the first and second screening frames are inclined, and their overall inclination angles are consistent. In addition, the lower and side parts of both frames are at the same height as the sliding connection points of the corresponding collection boxes.

[0011] Furthermore, the mesh size of the screen at the bottom of the second sieve frame is smaller than that of the screen at the bottom of the first sieve frame.

[0012] Furthermore, each discharge pipe is equipped with a regulating valve at its discharge end.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention adopts a double-layer screening design of screening frame one and screening frame two, with screens of different aperture sizes respectively, which can more accurately screen out slow-release fertilizer particles of different sizes. The motor drives the disc to rotate, and the inclined block periodically hits the contact block, causing screening frame one to vibrate up and down, thereby accelerating the process of particles passing through the screen aperture, so as to improve screening efficiency and ensure the uniformity of particle distribution.

[0014] 2. This utility model uses several buffer plates that slide freely in the gap between adjacent inclined blocks and are connected to the disc through guide rod two and spring three. This effectively absorbs the impact force generated by the impact of the inclined blocks, avoids excessive vibration to the equipment, extends the service life of the equipment, and improves the screening accuracy.

[0015] 3. This utility model uses inclined screen frames one and two, and the overall inclination angle of the two is consistent, which helps the particles slide down smoothly, reduces the possibility of clogging, and improves screening efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the support guide rod, motor, and disc.

[0018] Figure 3 This is a three-dimensional structural diagram of the guide rod, spring, and screen of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the screen, screening frame, and other components of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including the motor, disc, and contact block.

[0021] Figure 6 This is a three-dimensional structural diagram of the components of this utility model, including the disc, inclined block, and buffer plate.

[0022] Figure 7 This is a three-dimensional structural diagram of the collection box and the inclined stacking base of this utility model.

[0023] Reference numerals: 1_Base, 101_Bearing column, 102_Function funnel, 103_Guide rod one, 104_Spring one, 105_Screen, 106_Screening frame one, 107_Supporting guide rod, 108_Spring two, 109_Connecting plate, 110_Screening frame two, 111_Contact block, 2_Motor, 201_Disc, 202_Inclined block, 203_Buffer plate, 204_Guide rod two, 205_Spring three, 3_Collection box, 301_Inclined stacking seat, 4_Discharge pipe, 5_Central controller. Detailed Implementation

[0024] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0025] Example: A precision partitioning and screening device for slow-release fertilizer granules, such as... Figures 1-7As shown, the device includes a base 1, a load-bearing column 101 fixed to the upper side of the base 1, a funnel 102 connected to the upper side of the load-bearing column 101, a guide rod 103 provided on the bottom surface of the upper part of the load-bearing column 101, a spring 104 surrounding the guide rod 103, a screening frame 106 slidably connected to the lower part of the guide rod 103, the discharge port of the funnel 102 corresponding to the upper part of the screening frame 106, support guide rods 107 provided on both sides of the upper part of the screening frame 106, a spring 108 provided at the lower part of both support guide rods 107, and several symmetrical supports 108 provided on both sides of the middle part of the screening frame 106. The connecting plate 109 has two sides extending downwards at the bottom, and a second screening frame 110 is provided between these extensions. A screen 105 is provided at the bottom inner part of both the first screening frame 106 and the second screening frame 110. The aperture of the screen 105 at the bottom inner part of the second screening frame 110 is smaller than that of the screen 105 at the bottom inner part of the first screening frame 106. A contact block 111 is provided on the lower side of the first screening frame 106 near the supporting column 101. A motor 2 with its output shaft facing upwards is installed in the upper part of the supporting column 101. A disc 201 is connected to the output shaft of the motor 2. The upper part of the disc 201 is symmetrically arranged circumferentially. Several inclined blocks 202 are placed on the disc 201. A buffer plate 203 is slidably installed on the upper part of the disc 201 at the gap between every two inclined blocks 202. The inclined blocks 202 and the buffer plates 203 are in rotational contact with the contact block 111 to realize the up and down vibration of the screening frame 106. A guide rod 204 is provided at the sliding point between the buffer plate 203 and the disc 201, and a spring 205 is provided between the guide rod 204 and the buffer plate 203. Three closely fitting collection boxes 3 are provided on the upper part of the base 1, and the upper surfaces of the three collection boxes 3 are distinguished from high to low. The screening frame 106 and the screening frame 11 Both are tilted, and their overall tilt angles are the same. In addition, the lower and side parts of both are at the same height at the sliding connection points of the collection box 3. The side of the collection box 3 with the highest upper surface is slidably connected to the lower side of the screening frame 106, and the upper two sides of the collection box 3 are slidably connected to the lower ends of the two support guide rods 107. The side of the collection box 3 in the middle is slidably connected to the lower side of the screening frame 210. The collection box 3 with the lowest upper surface is directly below the screening frame 210. Each collection box 3 has a discharge pipe 4 connected to its lower side, and each discharge pipe 4 has a regulating valve at its discharge end.

[0026] like Figure 7 As shown, it also includes a ramp stacking seat 301. Each collection box 3 has a ramp stacking seat 301 fixed at the bottom, and the discharge ramp at the bottom of each stacking seat is connected to the corresponding discharge pipe 4. The ramp stacking seat 301, through its inclined surface design, allows the screened fertilizer particles to slide smoothly into the discharge pipe 4, improving discharge efficiency and reducing residue.

[0027] like Figure 1As shown, it also includes a central controller 5. The central controller 5, which controls the operation of each motor 2, is installed on the outside of one of the collection boxes 3 at the lowest point of the upper surface. By adjusting the speed of the motor 2, the rotation speed of the disc 201 is changed, thereby adjusting the vibration frequency of the first screening frame 106 and the second screening frame 110 to adapt to the screening requirements of different particle sizes.

[0028] In use, the slow-release fertilizer granules to be screened are added through the funnel 102. These granules first fall onto the screening frame 106, which has a relatively large mesh size 105 for preliminary screening of larger granules. The screening frame 106 is connected to the spring 104 via the guide rod 103, allowing it to generate a certain elastic displacement in the vertical direction. Simultaneously, the motor 2 on the load-bearing column 101 drives the disc 201 to rotate. The inclined block 202 on the disc 201 periodically strikes the contact block 111 at the bottom of the screening frame 106, thereby causing the screening frame 106 to move upward. The downward vibration helps to accelerate the process of particles passing through the aperture of screen 105, improving screening efficiency. After being screened by the first screening frame 106, the particles are divided into two parts: smaller particles pass through screen 105 and enter the second screening frame 110 below; while larger particles slide down the inclined surface of the first screening frame 106 to the highest collection box 3. The second screening frame 110 adopts a similar design, but it is equipped with a screen 105 with a smaller aperture inside, which is specifically used for further screening of the remaining particles. The second screening frame 110 is connected to the first screening frame 106 by connecting plates 109 on both sides. The screen is connected and stabilized by its own support guide rod 107 and spring 108. As the vibration of the first screening frame 106 is transmitted to the second screening frame 110, the latter will also produce a corresponding vibration effect, causing the particles to pass through the finer screen 105. After secondary screening, the particles that meet the requirements continue to slide down into the middle collection box 3; the small particles that fail to pass through the screen 105 fall directly into the lowest collection box 3. Several buffer plates 203 are also installed above the disc 201. They can slide freely in the gap between adjacent inclined blocks 202. These buffer plates 203 can... The guide rod 204 and spring 205 are connected to the disc 201, which can effectively absorb the impact force generated by the impact of the inclined block 202, avoid excessive vibration to the equipment, thereby extending the service life of the equipment and improving the screening accuracy. Finally, slow-release fertilizer granules of different sizes are collected into three different collection boxes 3. Each collection box 3 is equipped with an inclined stacking seat 301 and an adjustable valve discharge pipe 4 for easy subsequent processing or packaging. Through the central controller 5, the start and stop of the motor 2 can be flexibly controlled according to actual needs to achieve automated management.

[0029] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A precision partitioning and screening device for slow-release fertilizer granules, characterized in that: The device includes a base (1), a load-bearing column (101) fixed to the upper side of the base (1), a funnel (102) connected to the upper side of the load-bearing column (101), a guide rod (103) provided on the bottom surface of the upper part of the load-bearing column (101), a spring (104) surrounding the guide rod (103), a screening frame (106) slidably connected to the lower part of the guide rod (103), the discharge port of the funnel (102) corresponding to the upper part of the screening frame (106), and support guide rods (107) provided on both sides of the upper part of the screening frame (106). Both support guide rods (107) are equipped with springs (108) at their lower parts. Several symmetrical connecting plates (109) are provided on both sides of the middle of the screening frame (106). The lower parts of the connecting plates (109) extend downwards, and a screening frame (110) is provided between these extensions. Screens (105) are provided at the bottom inner sides of both the screening frame (106) and the screening frame (110). A contact block (111) is provided on the lower side of the screening frame (106) near the load-bearing column (101). A [missing information - likely a device or mechanism] is installed on the upper part of the load-bearing column (101). A motor (2) with its output shaft facing upwards has a disc (201) connected to its output shaft. Several inclined blocks (202) are symmetrically arranged around the upper part of the disc (201). A buffer plate (203) is slidably arranged on the upper part of the disc (201) at the gap between each pair of inclined blocks (202). A guide rod (204) is provided at the sliding point between the buffer plate (203) and the disc (201). A spring (205) is provided between the guide rod (204) and the buffer plate (203). Three tightly fitted springs are provided on the upper part of the base (1). The three collection boxes (3) are arranged in a hierarchical manner from high to low. The side of the collection box (3) with the highest upper surface is slidably connected to the lower side of the first screening frame (106), and the upper sides of the collection box (3) are slidably connected to the lower ends of the two support guide rods (107). The side of the collection box (3) in the middle is slidably connected to the lower side of the second screening frame (110). The collection box (3) with the lowest upper surface is directly below the second screening frame (110), and each collection box (3) has a discharge pipe (4) connected to the lower side of its side.

2. The slow-release fertilizer granule precision partitioning screening device according to claim 1, characterized in that: Both the inclined block (202) and the buffer plate (203) rotate in contact with the contact block (111) to achieve up-and-down vibration of the screening frame (106).

3. The precision partitioning and screening device for slow-release fertilizer granules according to claim 2, characterized in that: It also includes a ramp stacking seat (301), and each collection box (3) has a ramp stacking seat (301) fixed at the bottom, and the discharge ramp at the bottom of each stacking seat is connected to the corresponding discharge pipe (4).

4. The precision partitioning and screening device for slow-release fertilizer granules according to claim 3, characterized in that: It also includes a central controller (5), with the central controller (5) controlling the operation of each motor (2) installed on the outside of one of the collection boxes (3) at the lowest point of the upper surface.

5. The slow-release fertilizer granule precision partitioning screening device according to claim 4, characterized in that: Both the first screening frame (106) and the second screening frame (110) are inclined, and the overall inclination angle of the two is the same. In addition, the lower and side parts of the two are at the same height as the sliding connection of the collection box (3).

6. The precision partitioning and screening device for slow-release fertilizer granules according to claim 5, characterized in that: The aperture of the screen (105) at the bottom of the second sieve frame (110) is smaller than the aperture of the screen (105) at the bottom of the first sieve frame (106).

7. The precision partitioning and screening device for slow-release fertilizer granules according to claim 6, characterized in that: Each discharge pipe (4) is equipped with a regulating valve at its discharge end.

Images