Fertilizer particle sorting machine

Abstract

The utility model provides a fertilizer particle sorting machine, including screen drum, frame body, discharge hopper, motor no. 1 and aggregate bin, be equipped with rotating shaft and support bar in the screen drum, the screen drum is rotatablely inclined connection on the frame body through the rotating shaft, the discharge hopper is provided on the lower side of rotating shaft, the aggregate bin is provided below the screen drum, motor no. A cleaning device composed of a fixing plate, a first screw rod, a sliding rod, a second motor and a cleaner is arranged on the frame body, the fixing plate is connected to the frame body, and the sliding rod and the first screw rod are connected to the fixing plate; the cleaner comprises a brush head and a sliding block, a screw hole and a through hole are formed in the sliding block, the sliding block is slidably connected to the first screw rod and the sliding rod through the screw hole and the through hole, the brush head is arranged on the side, facing the screen drum, of the sliding block, and the second motor is arranged on the fixing plate and is in power connection with the first screw rod. According to the utility model, the fertilizer bonded on the screen drum can be scraped off, so that the fertilizer particles are prevented from blocking the screen holes, and meanwhile, the fertilizer particles on the aggregate bin can be scraped off, so that the blanking speed of the aggregate bin is prevented from being reduced.

Description

A fertilizer granule sorting machine Technical Field

[0001] This utility model belongs to the field of fertilizer production and processing equipment, specifically relating to a fertilizer granule sorting machine. Background Technology

[0002] Fertilizer production involves processing one or more raw materials, such as crop straw, animal manure, industrial byproducts, and kitchen waste, into fertilizer granules through multiple processes including fermentation, crushing, mixing, granulation, drying, and cooling. These granules are then sorted and packaged to produce commercially available fertilizer products. Fertilizer sorting involves conveying the granulated fertilizer granules to a sorting machine via a conveyor belt. Small, non-compliant granules are screened out and returned to the granulator for re-granulation via a conveyor belt. Larger, compliant granules are then conveyed to the next process. Due to the composition of fertilizers, they are prone to moisture absorption during stacking, causing granules to easily stick together during sorting. This results in two problems: firstly, small granules may clump at the hopper's discharge port, affecting the hopper's discharge speed; secondly, small granules can clog the screen holes, eventually preventing the sorting process from continuing. Therefore, it is necessary to conduct a special study on the clogging of the sorting machine to avoid the situation where fertilizer clogging causes the sorting process to fail to meet the process requirements. However, the screen cylinder of the sorting machine rotates continuously during the screening process and also has a certain tilt angle. How to clean it without affecting the operation of the screen cylinder is the focus of the research. Summary of the Invention

[0003] This utility model provides a fertilizer granule sorting machine, which cleans the screen holes by setting a cleaner that can reciprocate along the axis of the screen cylinder on the side of the screen cylinder, and at the same time uses a scraper to scrape off the fertilizer adhering to the collection hopper, thereby realizing the self-cleaning function of the fertilizer granule sorting machine.

[0004] A fertilizer granule sorting machine comprises a screen cylinder, a frame, a discharge hopper, a motor, and a collection hopper. To ensure the screen cylinder functions properly, it has an internal rotating shaft and multiple support bars. The rotating shaft is located on the central axis of the screen cylinder. The two ends of the support bars are connected to the inside of the screen cylinder and the rotating shaft, respectively. The screen cylinder and rotating shaft are connected by the interlacing support bars. The two ends of the rotating shaft are rotatably connected to the frame, giving the shaft an inclined angle, allowing the screen cylinder to rotate freely on the frame. Due to the inclined shaft, the screen cylinder also has a certain inclination angle. The lower end of the screen cylinder is designated as the discharge port for large fertilizer granules. The discharge hopper is installed on the frame on the lower side of the rotating shaft to collect large fertilizer granules, while the collection hopper is installed on the frame directly below the screen cylinder to collect the screened small fertilizer granules. To achieve automatic rolling screening of the screen cylinder, a motor is installed on the frame at the lower end of the rotating shaft, providing power to the rotating shaft and driving the screen cylinder to rotate. To automatically clean the screen holes of the screen cylinder, a cleaning device is installed on the frame. The cleaning device consists of a fixed plate, a screw rod, a slide rod, a motor, and a cleaner. There are two fixed plates used to fix the positions of the screw rod and the slide rod. The two ends of the slide rod are respectively connected to the two fixed plates. The two ends of the screw rod are rotatably connected to the two fixed plates. The fixed plates are then fixed to the frame so that the slide rod and the screw rod are flush with the rotating shaft and located on the side of the screen cylinder. The cleaner consists of a brush head and a slider. The slider has a through hole and a screw hole in the middle. The size of the through hole corresponds to the size of the slide rod, and the screw hole corresponds to the screw rod. The slider is fitted onto the screw rod through the screw hole and onto the slide rod through the through hole. When the screw rod rotates, it can drive the slider to move along the slide rod. The brush head is installed on the side of the slide rod facing the screen cylinder, so that the brush head can contact the outer surface of the screen cylinder. The cleaning function of the screen cylinder is achieved by using the slider to drive the brush head to move. The second motor is mounted on a fixed plate and is connected to the screw rod. The second motor can drive the screw rod to rotate. Controlling the operation of the second motor can control the movement and direction of the cleaner.

[0005] To achieve automatic control of the cleaner, a touch switch is installed on each of the two fixed plates. The touch switch is located on the side of the fixed plate connecting the screw and the slide bar, and the touch switch is electrically connected to the motor. When the slider slides to both ends of the screw, the touch switch can be triggered. The two touch switches are used to control the forward and reverse rotation of the motor respectively.

[0006] To achieve the fertilizer adhesion and cleaning function of the collection hopper, the collection hopper is designed with a shape consisting of two opposing vertical surfaces and two opposing inclined surfaces. A screw rod is installed in the middle of the inclined surface of the collection hopper, with its two ends rotatably connected to the top and bottom of the inclined surface. A scraper is fitted onto the screw rod, with the length of the scraper matching the length of the inclined surface. The scraper has screw holes that match the screw rod, and the scraper is fitted onto the screw rod through the screw holes. When the screw rod rotates, the scraper can move along the screw rod, using the movement of the scraper to scrape off the fertilizer on the inner wall of the collection hopper. A motor is connected to the top of the screw rod and is fixed to the frame. The motor can drive the screw rod to rotate, thereby realizing the scraper operation control function.

[0007] To achieve better cleaning results and protect the sieve cylinder, the brush head is made of silicone material, which is both soft and flexible, preventing damage to the sieve cylinder.

[0008] The fertilizer granule sorting machine provided by this utility model can scrape off the fertilizer adhering to the screen cylinder during the fertilizer granule sorting process, so as to avoid the fertilizer granules clogging the screen holes. At the same time, it can scrape off the fertilizer granules on the collection hopper, so as to avoid the decrease in the material discharge rate of the collection hopper. It can reduce the time of manual intervention in fertilizer production, maintain the stable operation of the fertilizer production line, and improve fertilizer production efficiency. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings.

[0010] Figure 1 is a schematic diagram of the overall structure of the fertilizer granule sorting machine;

[0011] Figure 2 is a schematic diagram of the cleaning device structure;

[0012] Figure 3 is a schematic diagram of the cleaner structure;

[0013] Figure 4 is a schematic diagram of the internal structure of the material collection hopper;

[0014] The diagram shows: 1-screen cylinder; 2-frame; 3-discharge hopper; 4-motor 1; 5-collecting hopper; 6-rotating shaft; 7-support bar; 8-fixing plate; 9-screw 1; 10-slide bar; 11-motor 2; 12-cleaner; 13-brush head; 14-slider; 15-touch switch; 16-screw 2; 17-scraper; 18-motor 3. Detailed Implementation

[0015] To further illustrate the concept of this utility model, the specific embodiments of this utility model will be further described below with reference to the accompanying drawings: Embodiment 1

[0016] A fertilizer granule sorting machine, as shown in Figure 1, includes a screen cylinder 1, a frame 2, a discharge hopper 3, a motor 4, and a collection hopper 5. The screen cylinder 1 has screen holes on its side wall. A metal shaft with a length exceeding the axial length of the screen cylinder 1 is selected as the rotating shaft 6. The rotating shaft 6 is connected to the inside of the screen cylinder 1 using multiple support bars 7, with the support bars 7 connected to the inner wall of the screen cylinder 1 and the rotating shaft 6 respectively, while ensuring that the rotating shaft 6 coincides with the central axis of the screen cylinder 1. The size and shape of the frame 2 are determined according to the screen cylinder 1. Both ends of the rotating shaft 6 are fixed to the frame 2 using bearings. When fixing the rotating shaft 6, an inclination angle is set according to requirements. Then, the motor 4 is installed on the frame 2 at the lower end of the rotating shaft 6, and the motor 4 is connected to the rotating shaft 6 for power connection. The discharge hopper 3 is installed and fixed on the frame 2 on the lower side of the screen cylinder 1, so that the discharge hopper 3 can collect the large granular fertilizers screened out from the screen cylinder 1. The collection hopper 5 is installed on the frame 2 directly below the screen cylinder 1, so that the collection hopper 5 can collect the small granular fertilizers screened out from the screen cylinder 1.

[0017] Take a metal rod as the slide rod 10 and a threaded rod as the screw 9. Weld a metal plate as a fixing plate 8 to each end of the frame 2 located on the side of the screen cylinder 1. Take a metal block as the slider 14. Make a through hole and a screw hole on the slider 14. The size of the through hole is the same as the cross-section of the slide rod 10. The screw hole matches the screw 9. Then, slide the slider 14 through the through hole and the screw hole onto the slide rod 10 and the screw 9, so that the screw 9 and the slide rod 10 are parallel. Then connect the screw 9 and the slide rod 10 between the two fixing plates 8. When connecting, make the screw 9 and the slide rod 10 parallel to the rotating shaft 6. The slide rod 10 is fixedly connected to the fixing plate 8. The screw 9 is rotatably connected to the fixing plate 8 through the bearing. The position should be such that the slider 14 is close to the screen cylinder 1. Then, install a silicone brush head 13 on the part of the slider 14 close to the screen cylinder 1, as shown in Figure 3, to make a cleaner 12, so that the brush head 13 can contact the outer surface of the screen cylinder 1. Motor 2 11 is mounted on a fixed plate 8, and motor 2 11 is poweredly connected to screw 1 9, as shown in Figure 2. Example 2

[0018] Based on Embodiment 1, a touch switch 15 is installed on each of the two fixed plates 8. The touch switches 15 are located on the side of the fixed plate 8 connecting the screw 9 and the slide rod 10. The installation position of the touch switches 15 should ensure that the slider 14 can contact the touch switch 15. The touch switches 15 are electrically connected to the motor 11. The two touch switches 15 control the forward and reverse rotation of the motor 11 respectively, as shown in Figure 2. Embodiment 3

[0019] Based on Example 2, the hopper 5 is configured as a shape consisting of two opposing vertical surfaces and two opposing inclined surfaces. Then, a screw rod 16 is installed in the middle of each inclined surface of the hopper 5. A bearing is connected to each end of the screw rod 16, and each bearing is mounted on a lug. The lugs are fixed to the top and bottom of the inclined surface, so that the screw rod 16 can be rotatably mounted on the inclined surface. A metal strip is taken as a scraper 17. A screw hole matching the screw rod 16 is opened in the middle of the scraper 17. The length of the scraper 17 is the same as the length of the inclined surface. The scraper 17 is fitted onto the screw rod 16 through the screw hole. The motor 18 is fixed to the frame 2, so that the motor 18 is poweredly connected to the top of the screw rod 16, as shown in Figure 4.

[0020] The working method of this utility model will be explained with reference to Embodiment 3. When sorting fertilizer granules, motor 4 and motor 11 are started to make screen cylinder 1 and screw 9 rotate. When screen cylinder 1 rotates, fertilizer granules are put into the higher end of screen cylinder 1. After screening, qualified granules enter the discharge hopper 3 from the lower end of screen cylinder 1, while unqualified granules fall into the collection hopper 5 through the screen holes of screen cylinder 1. When screw 9 rotates, the angle of slider 14 is fixed by slide rod 10. Screw 9's rotation causes slider 14 to move along slide rod 10, with the direction of movement controlled by screw 9's rotation. Motor 11's rotation direction is controlled by touch switch 15. When slider 14 moves to either end of slide rod 10, both touch switches 15 are triggered. These switches control motor 11 to rotate in opposite directions, achieving automatic reciprocating motion of slider 14. During this reciprocating motion, brush head 13 contacts the outer wall of screen cylinder 1 to clean the fertilizer particles on the screen holes. If fertilizer particles in the collection hopper 5 become sticky, motor 18 is manually activated, using screw 16 to rotate and move scraper 17, scraping the fertilizer particles off the inner wall of collection hopper 5. Motor 18 can be controlled manually or automatically using the same method as motor 11, with automatic cleaning via touch switch 15.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations can be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made using the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fertilizer granule sorting machine, comprising a screen cylinder (1), a frame (2), a discharge hopper (3), a motor (4), and a collection hopper (5), wherein the screen cylinder (1) is provided with a rotating shaft (6) and support bars (7), the rotating shaft (6) is located on the central axis of the screen cylinder (1), and there are multiple support bars (7), the two ends of which are respectively connected to the inside of the screen cylinder (1) and the rotating shaft (6), the screen cylinder (1) is rotatably connected to the frame (2) through the two ends of the rotating shaft (6), the rotating shaft (6) is inclinedly connected to the frame (2), the discharge hopper (3) is located on the frame (2) at the lower side of the rotating shaft (6), the collection hopper (5) is located on the frame (2) directly below the screen cylinder (1), the motor (4) is located on the frame (2) at the lower end of the rotating shaft (6), and the motor (4) is poweredly connected to the rotating shaft (6), characterized in that: The frame (2) is also equipped with a cleaning device, which includes a fixing plate (8), a screw (9), a slide rod (10), a motor (11), and a cleaner (12). There are two fixing plates (8). The screw (9) and the slide rod (10) are arranged in parallel. The two ends of the slide rod (10) are respectively connected to the two fixing plates (8). The two ends of the screw (9) are respectively rotatably connected to the two fixing plates (8). The two fixing plates (8) are connected to the frame (2) so that the screw (9) and the slide rod (10) are parallel to the rotating shaft (6) and located at... The side of the sieve cylinder (1); the cleaner (12) includes a brush head (13) and a slider (14). The slider (14) is provided with a screw hole corresponding to the screw (9) and a through hole corresponding to the slide rod (10). The slider (14) is slidably connected to the screw (9) and the slide rod (10) through the screw hole and the through hole. The brush head (13) is set on the side of the slider (14) facing the sieve cylinder (1). The end of the brush head (13) contacts the outer surface of the sieve cylinder (1). The motor (11) is set on a fixed plate (8). The motor (11) is poweredly connected to the screw (9).

2. The fertilizer granule sorting machine according to claim 1, characterized in that: Both fixed plates (8) are equipped with touch switches (15). The touch switches (15) are located on the side of the fixed plate (8) connecting screw one (9) and slide rod (10). The touch switches (15) are electrically connected to motor two (11). When the slider (14) slides to both ends of screw one (9), the touch switches (15) can be triggered. The two touch switches (15) control the motor to rotate forward and reverse respectively.

3. The fertilizer granule sorter of claim 2, wherein: The hopper (5) consists of two opposing vertical surfaces and two opposing inclined surfaces. A screw rod (16) is provided in the middle of the inclined surface of the hopper (5). The two ends of the screw rod (16) are rotatably connected to the top and bottom of the inclined surface. A scraper (17) is fitted on the screw rod (16). The length of the scraper (17) is the same as the length of the inclined surface. The scraper (17) is provided with a screw hole that matches the screw rod (16). The scraper (17) is fitted on the screw rod (16) through the screw hole. The top of the screw rod (16) is connected to a motor (18). The motor (18) is fixed on the frame (2).

4. The fertilizer granule sorter of claim 1, wherein: The brush head (13) is made of silicone.

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