Screening device for organic fertilizer

Abstract

The utility model discloses an organic fertilizer screening device which comprises a base and a filter screen, a framework, a beating mechanism and a driving mechanism are arranged in the base, the driving mechanism is used for driving the framework and the beating mechanism to rotate, the framework comprises a frame head, a frame body and a frame tail, the frame head, the frame body and the frame tail are used for supporting and installing the filter screen, and the frame head is used for feeding. The filter screen is used for screening fertilizer, the beating mechanism enables the filter screen to vibrate by beating the frame head, the frame body and the frame tail, and the beating mechanism comprises a swing wheel, a swing strip and a convex block. The three balance wheels respectively rotate at the bottoms of the frame head, the frame body and the frame tail to continuously knock the frame head, the frame body and the frame tail to cause vibration, when the vibration is transmitted to the filter screen, adhesion and blockage between materials and the filter screen can be prevented, and due to the fact that the balance wheels are not in contact with the filter screen in the process of causing the vibration, the filter screen can be prevented from being blocked. Therefore, the condition that the filter screen is damaged does not exist, and the screening effect and efficiency can be improved when the fertilizer is screened.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer screening, in particular to an organic fertilizer screening device. Background Art

[0002] The purpose of fertilizer screening is to improve the purity, consistency and applicability of fertilizers, which can more effectively promote crop growth and increase yields.

[0003] When using a fertilizer screening machine to screen fertilizer, the selection of the screen is often very important. The aperture specifications of the screen need to be selected according to the particle size of the raw material to ensure the screening effect. At the same time, it is also necessary to consider that organic fertilizers are often humid and easy to adhere to the screen, so it is necessary to choose an easy-to-clean screen. The thinner the screen, the smaller the hole depth, the smaller the adhesion area, and the easier it is to clean and maintain.

[0004] After searching, the Chinese utility model patent with publication number CN216297032U discloses a multi-layer screening machine for organic fertilizer production, including a frame and an annular screen, the annular screen rotates horizontally near the top of the frame, and a rotating rod rotates horizontally at the center of the annular screen, a rotating mechanism for rotating the rotating rod is provided on one side of the frame, and both ends of the arc surface of the rotating rod are fixedly connected with fixed rods, the fixed rods are multiple and evenly distributed at both ends of the arc surface of the rotating rod, and the multiple fixed rods are arranged perpendicular to the rotating rod, and both ends of the rotating rod are provided with a first cleaning mechanism for cleaning the annular screen and are symmetrically arranged about the center of the rotating rod, and abutment rods are fixedly connected at the center of the arc surface of the rotating rod and are arranged perpendicular to the rotating rod. This scheme causes the vibration of the annular screen by directly hitting the annular screen during the rotation of the annular screen, thereby achieving the effect of preventing material clogging and sticking to the screen, but this also determines that the annular screen must have a certain strength, otherwise continuous hitting will cause its surface to be concave, and the mesh at the concave position will be deformed and affect the screening effect. The strength of the annular screen is directly reflected in its thickness and hardness. The thicker the screen is, the deeper the holes are, providing a larger adhesion area for the fertilizer. Therefore, the screen in the device is not easy to clean. Secondly, the annular screen in this solution is almost integrated with the equipment, so it is difficult to disassemble it for cleaning. Utility Model Content

[0005] In view of the above-mentioned prior art, the utility model provides a screening device for organic fertilizers, and the main technical problem to be solved is how to ensure the screening effect and efficiency of the fertilizers.

[0006] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0007] The invention discloses an organic fertilizer screening device, comprising a base and a filter screen. A frame, a beating mechanism and a driving mechanism are arranged inside the base. The driving mechanism is used to drive the frame and the beating mechanism to rotate. The frame comprises a frame head, a frame body and a frame tail. The frame head, the frame body and the frame tail are used to support and install the filter screen. The frame head is used for feeding, and the filter screen is used for screening fertilizer. The beating mechanism vibrates the filter screen by beating the frame head, the frame body and the frame tail. The beating mechanism comprises a pendulum wheel, a pendulum bar and a protrusion. The pendulum wheel hits the frame head, the frame body and the frame tail through the pendulum bar and the protrusion.

[0008] Furthermore, a rotating rod is rotatably connected at the top end between the inner walls on both sides of the base, and the frame head, frame tail and frame body are respectively located at the two ends and the middle of the outer side of the rotating rod. The frame head is truncated cone-shaped, the frame body is circular ring-shaped, and the frame tail is disc-shaped. The filter screen is detachably fixed on the outer side between the frame head, frame body and frame tail.

[0009] Furthermore, a plurality of support rods are fixedly connected at equal distances to the inner sides of the frame head and the frame body, one end of the support rods located on the inner sides of the frame head and the frame body are fixedly connected to the same fixing sleeve, the two fixing sleeves are fixedly connected to the outside of the rotating rod, a circular opening is provided on the inner wall of one side of the frame tail, and the rotating rod passes through the frame tail at the circular opening and is fixedly connected to the frame tail.

[0010] Furthermore, a rotating shaft is rotatably connected to the bottom end of the inner wall on one side of the base, and a circular through hole is opened at the bottom end of the other side of the base. One end of the rotating shaft extends to the outside of the base at the circular through hole. There are three balance wheels, which are all fixedly connected to the rotating shaft, and the three balance wheels are respectively located at the bottom ends of the frame head, frame body and frame tail.

[0011] Furthermore, the balance wheel includes a fixed ring, which is sleeved on the outside of the rotating shaft, and three fixed piles are equidistantly fixedly connected to the outside of the fixed ring. There are three pendulum bars, which are respectively rotatably connected to one end of the three fixed piles, and torsion springs are respectively fixedly connected between the three pendulum bars and the three fixed piles. The pendulum bar is arc-shaped, and there are several protrusions, which are equidistantly and evenly fixedly connected to the outside of the three pendulum bars, and the material of the protrusions is rubber.

[0012] Furthermore, a driving wheel is connected to the outer end of the rod body of the rotating shaft through a key, and a driven wheel is connected to the outer end of the rod body of the rotating rod through a key. The diameter of the driving wheel is smaller than the diameter of the driven wheel, and the driving wheel and the driven wheel are both pulleys. The same belt is sleeved on the outside of the driving wheel and the driven wheel. The bottom end of one side of the base is fixedly connected to the machine casing at the outside of the rotating shaft. The driving mechanism includes a motor, the motor is fixedly connected to the inner wall of one side of the casing, and one end of the output shaft of the motor is fixedly connected to the rotating shaft.

[0013] Furthermore, a feed port is provided at the top of one side of the base close to the frame head, and a feed hopper is fixedly connected to the base at the feed port, one end of the feed hopper inside the base extends to the inner side of the frame head, a discharge port is provided at the bottom end of the base below the filter, and a discharge hopper is fixedly connected to the base at the discharge port, and notches for accommodating the rotating shaft are provided at the top of both sides of the discharge hopper.

[0014] Furthermore, a jack is provided on one side of the bottom end of the base close to the feed hopper, and the jack is used to adjust and support the base in an inclined state.

[0015] The beneficial effects of the utility model are:

[0016] 1. When screening fertilizers, a thinner and more flexible filter can be installed on the outside between the frame head, the frame body and the frame tail, and then the above three can be used to drive the filter to rotate to achieve the fertilizer screening effect. In this way, the filter can be more conveniently loaded and unloaded, so it can be conducive to regular cleaning and maintenance; in addition, the three pendulums can be continuously knocked to induce vibration by rotating at the bottom of the frame head, the frame body and the frame tail respectively, and when the vibration is transmitted to the filter, it can prevent the material from sticking and clogging with the filter. Moreover, since the pendulum does not contact the filter during the vibration process, even if the device uses a flexible filter, there will be no damage to its appearance. Therefore, the device can improve the screening effect and efficiency when screening fertilizers;

[0017] 2. When the device is in operation, the operation of the pendulum wheel and the frame is completed by the motor driving the small-diameter driving wheel and the large-diameter driven wheel respectively. This can make the rotation speeds of the two different, so the pendulum wheel can strike the frame more comprehensively, so the vibration of the filter caused by the frame can be more sufficient, so the screening efficiency of the fertilizer can be guaranteed; at the same time, the slow rotation of the frame can avoid giving the material too much centrifugal force, so as to ensure the screening effect;

[0018] 3. By setting a jack at one end of the bottom of the base, the jack can be used to make the feed end of the device tilt upward when screening materials. In this case, the frame can be tilted, so that the material can be moved from high to low during the screening process. In this case, small-aperture and large-aperture filters can be installed at the high and low ends of the frame respectively to achieve double and multiple screening effects for the same batch of fertilizers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front cross-sectional view of an organic fertilizer screening device in Example 1 of the present application;

[0020] Figure 2 A side view of a pendulum wheel of an organic fertilizer screening device in Example 1 of the present application;

[0021] Figure 3 This is a front view of a skeleton of an organic fertilizer screening device in Example 1 of the present application;

[0022] Figure 4 This is a front view of a discharge hopper of an organic fertilizer screening device in Example 1 of the present application;

[0023] Figure 5 This is a front cross-sectional view of an organic fertilizer screening device in Example 2 of the present application.

[0024] Description of Figure Numbers:

[0025] Base 1, rotating shaft 2, frame head 3, feed hopper 4, fixed sleeve 5, support rod 6, rotating rod 7, filter screen 8, frame body 9, frame tail 10, driven wheel 11, belt 12, driving wheel 13, motor 14, casing 15, discharge hopper 16, pendulum wheel 17, fixed ring 1701, fixed pile 1702, torsion spring 1703, pendulum bar 1704, protrusion 1705, jack 18. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0027] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] Example 1

[0029] See attached Figure 1-4The present application provides a screening device for organic fertilizer, comprising a base 1 and a filter 8. A frame, a beating mechanism and a driving mechanism are arranged inside the base 1. The driving mechanism is used to drive the frame and the beating mechanism to rotate. The power sources of the two are unified, so they can be easily controlled. The frame comprises a frame head 3, a frame body 9 and a frame tail 10. The frame head 3, the frame body 9 and the frame tail 10 are used to support and install the filter 8. The filter 8 is installed outside the three by wrapping, and a cross bar can be arranged between two adjacent frames of the frame head 3, the frame body 9 and the frame tail 10. It is used to support the filter 8, and the frame head 3 is used for feeding. The filter 8 can screen the fertilizer when the frame rotates. The beating mechanism vibrates the filter 8 by beating the frame head 3, the frame body 9 and the frame tail 10, so as to avoid the relatively moist organic fertilizer from sticking and clogging with the filter 8. The beating mechanism includes a balance wheel 17, a pendulum bar 1704 and a protrusion 1705. The balance wheel 17 hits the frame head 3, the frame body 9 and the frame tail 10 through the pendulum bar 1704 and the protrusion 1705, so as to make these three vibrate, thereby causing the filter 8 to vibrate.

[0030] A rotating rod 7 is rotatably connected at the top end between the inner walls on both sides of the base 1. The frame head 3, frame tail 10 and frame body 9 are respectively located at the two ends and the middle of the outer side of the rotating rod 7. The three are arranged in sequence outside the rod body of the rotating rod 7. The frame head 3 is truncated cone-shaped, and its thick end is equal to the diameter of the frame body 9 and the frame tail 10. Its thin end is used to accommodate the feed hopper 4 to facilitate feeding. The frame body 9 is annular, and the frame tail 10 is disc-shaped. The filter screen 8 is detachably fixedly installed on the outer side between the frame head 3, the frame body 9 and the frame tail 10, and bolts, screws and other structures can be used to achieve detachable fixed installation. The inner sides of the frame head 3 and the frame body 9 are fixedly connected with a plurality of support rods 6 at equal distances, and the support rods 6 are used to support the frame head 3 and the frame body 9 to maintain the stability of the installation of the filter screen 8. One end of the support rods 6 located on the inner sides of the frame head 3 and the frame body 9 is fixedly connected with the same fixing sleeve 5, and the two fixing sleeves 5 are fixedly connected to the outside of the rotating rod 7. A circular opening is provided on the inner wall of one side of the frame tail 10, and the rotating rod 7 passes through the frame tail 10 at the circular opening and is fixedly connected thereto. The frame head 3, the frame body 9 and the frame tail 10 can be connected to the rotating rod 7 by keys, thereby ensuring the effectiveness of the rotation transmission.

[0031] The bottom end of the inner wall of one side of the base 1 is rotatably connected with a rotating shaft 2, and a circular through hole is opened at the bottom end of the other side of the base 1. One end of the rotating shaft 2 extends to the outside of the base 1 at the circular through hole. There are three balance wheels 17, and the three balance wheels 17 are fixedly connected to the rotating shaft 2. The three balance wheels 17 are respectively located at the bottom ends of the frame head 3, the frame body 9 and the frame tail 10. The three balance wheels 17 correspond to the frame head 3, the frame body 9 and the frame tail 10 respectively, so it can ensure that the process of slapping to induce vibration can occur smoothly. The balance wheel 17 includes a fixed ring 1701. When the balance wheel 17 is in Figure 2In the state shown, the rotation direction should be counterclockwise, the fixing ring 1701 is sleeved on the outside of the rotating shaft 2, and the outer side of the fixing ring 1701 is fixedly connected with three fixing piles 1702 at equal intervals, the number of the swing bars 1704 is three, the three swing bars 1704 are respectively rotatably connected to one end of the three fixing piles 1702, and the three swing bars 1704 are respectively fixedly connected to the three fixing piles 1702 with torsion springs 1703, the swing bars 1704 are arc-shaped, the number of the protrusions 1705 is several, and the several protrusions 1705 are equidistant and evenly spaced. It is evenly and fixedly connected to the outside of the three pendulum bars 1704. When the pendulum bars 1704 rotate and contact the frame, several protrusions 1705 on its outside can contact the frame in turn and then dislocate. The contact process will squeeze the pendulum bars 1704, and after the dislocation, the pendulum bars 1704 can bounce up and hit the frame due to the elastic force of the torsion springs 1703, thereby causing vibration. The material of the protrusions 1705 is rubber. The soft rubber material can ensure the effective occurrence of the above-mentioned contact and dislocation process through its own deformation, and will not produce too much resistance to the process.

[0032] A driving wheel 13 is connected to the outer end of the rod body of the rotating shaft 2 through a key, and a driven wheel 11 is connected to the outer end of the rod body of the rotating rod 7 through a key. The diameter of the driving wheel 13 is smaller than the diameter of the driven wheel 11, so the process of the driving wheel 13 driving the driven wheel 11 to rotate can achieve a deceleration effect, so that the filter 8 can be rotated slowly, thereby ensuring the screening effect, and the driving wheel 13 and the driven wheel 11 are both pulleys, and the driving wheel 13 and the driven wheel 11 are externally sleeved with the same belt 12, and the bottom end of one side of the base 1 is fixedly connected to the outer side of the rotating shaft 2. The driving mechanism includes a motor 14, which is fixedly connected to an inner wall of one side of the casing 15, and one end of the output shaft of the motor 14 is fixedly connected to the rotating shaft 2. The motor 14 can be a servo motor to ensure uniform and stable power output.

[0033] A feed port is provided at the top of one side of the base 1 close to the frame head 3, and a feed hopper 4 is fixedly connected to the base 1 at the feed port. The feed hopper 4 is at one end inside the base 1 and extends to the inner side of the frame head 3. The feed hopper 4 is used to add materials. The materials added thereto will enter the filter screen 8 from the inner side of the frame head 3, and then start screening. A discharge port is provided at the bottom end of the base 1 below the filter screen 8, and a discharge hopper 16 is fixedly connected to the base 1 at the discharge port. The discharge hopper 16 can facilitate more concentrated collection of materials, so it is only necessary to place a storage container under the discharge hopper 16 to complete the material collection. Notches for accommodating the rotating shaft 2 are provided at the tops of both sides of the discharge hopper 16.

[0034] Working principle: When screening fertilizer, the filter 8 can be installed on the outside of the frame head 3, the frame body 9 and the frame tail 10 by means of bolts, screws and other structures, and then the motor 14 is started. The motor 14 can drive the pendulum 17 and the driving wheel 13 to rotate through the rotating shaft 2. The driving wheel 13 drives the driven wheel 11 to rotate through the belt 12. The driven wheel 11 drives the frame head 3, the frame body 9 and the frame tail 10 to rotate through the rotating rod 7, so the filter 8 installed on the outside of the three can rotate accordingly;

[0035] Then, the material can be put into the frame head 3 from the feed hopper 4. At this time, the rotation of the filter screen 8 can make the material roll inside it, so as to achieve the material screening effect. At the same time, when the three balance wheels 17 rotate, centrifugal force will be generated to make the external swing bars 1704 close to the frame head 3, frame body 9 and frame tail 10 that constitute the frame, and in this process, a number of protrusions 1705 will contact the frame in sequence as the swing bars 1704 rotate relative to the frame. When the protrusions 1705 contact the frame, the swing bars 1704 will be pressed down, and when the protrusions 1705 are misaligned with the frame, the swing bars 1704 will return to their original state and hit the frame due to the elastic force of the torsion spring 1703. Therefore, each protrusion 1705 can trigger a swing bar 1704 to hit the frame after contacting the frame. Therefore, the continuous rotation of the balance wheel 17 can continuously hit the frame, thereby causing the frame head 3, frame body 9 and frame tail 10 to vibrate, and then the filter screen 8 vibrates to enhance the effect and efficiency of fertilizer screening;

[0036] When screening the fertilizer, large particles of fertilizer will be retained in the filter 8, while small particles of fertilizer will fall from the discharge hopper 16. Therefore, it is only necessary to place a collection box at the bottom of the discharge hopper 16 to complete the collection of the fertilizer after screening. After completing the fertilizer screening in this way, the motor 14 can be turned off first, and then the filter 8 can be removed for convenient cleaning.

[0037] Example 2

[0038] See attached Figure 5 The present application provides a screening device for organic fertilizers. Compared with Example 1, in order to facilitate multiple screening of fertilizers, a jack 18 is provided on the side of the bottom end of the base 1 close to the feed hopper 4. The jack 18 is used to adjust and support the base 1 in an inclined state. At the same time, several different filter screens with apertures from small to large can be installed in sequence on the outside of the skeleton in the direction from the feed hopper 4 to the motor 14. In this case, since the screening of the fertilizer will move from the high end to the low end due to the inclination of the device, small particles of fertilizer can fall from the small-aperture filter screen 8 first, and large particles of fertilizer will fall from the large-aperture filter screen 8 later, thereby achieving the effect of multiple screening.

[0039] Working principle: When using this device, the jack 18 can be used to lift up the feed end of the device so that the device as a whole is in an inclined state. At the same time, the filter screen 8 installed outside the frame can be replaced with two or more filter screens with gradually increasing apertures from the frame head 3 to the frame tail 10. When the device is used for fertilizer screening, the inclined state of the device can cause the fertilizer to gradually move from the high end to the low end when rolling. In this process, small particles of fertilizer can fall first through the filter screen with a smaller aperture at the high end, while large particles of fertilizer will fall after the filter screen with a larger aperture at the bottom end, thereby achieving a multiple screening effect on the fertilizer. When collecting after screening, it is only necessary to place collection containers under different filter screens 8 respectively.

[0040] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A screening device for organic fertilizer, comprising a base (1) and a filter screen (8), characterized in that: The base (1) is provided with a frame, a beating mechanism and a driving mechanism inside, the driving mechanism is used to drive the frame and the beating mechanism to rotate, the frame comprises a frame head (3), a frame body (9) and a frame tail (10), the frame head (3), the frame body (9) and the frame tail (10) are used to support and install a filter screen (8), and the frame head (3) is used for feeding, and the filter screen (8) is used for screening fertilizers, the beating mechanism vibrates the filter screen (8) by beating the frame head (3), the frame body (9) and the frame tail (10), and the beating mechanism comprises a balance wheel (17), a pendulum bar (1704) and a protrusion (1705), and the balance wheel (17) strikes the frame head (3), the frame body (9) and the frame tail (10) through the pendulum bar (1704) and the protrusion (1705).

2. The organic fertilizer screening device according to claim 1, characterized in that: A rotating rod (7) is rotatably connected at the top end between the inner walls on both sides of the base (1); the frame head (3), frame tail (10) and frame body (9) are respectively located at the two ends and the middle of the outer side of the rotating rod (7); the frame head (3) is in the shape of a truncated cone, the frame body (9) is in the shape of a circular ring, and the frame tail (10) is in the shape of a disc; the filter screen (8) is detachably fixedly mounted on the outer side between the frame head (3), the frame body (9) and the frame tail (10).

3. The organic fertilizer screening device according to claim 2, characterized in that: A plurality of support rods (6) are fixedly connected at equal intervals to the inner sides of the frame head (3) and the frame body (9); one end of each of the support rods (6) located on the inner sides of the frame head (3) and the frame body (9) is fixedly connected to a same fixing sleeve (5); the two fixing sleeves (5) are fixedly connected to the outside of the rotating rod (7); a circular opening is provided on the inner wall of one side of the frame tail (10); the rotating rod (7) passes through the frame tail (10) at the circular opening and is fixedly connected to the frame tail (10).

4. The organic fertilizer screening device according to claim 2, characterized in that: A rotating shaft (2) is rotatably connected at the bottom end of the inner wall of one side of the base (1), and a circular through hole is opened at the bottom end of the other side of the base (1). One end of the rotating shaft (2) extends to the outside of the base (1) at the circular through hole. There are three balance wheels (17), and the three balance wheels (17) are fixedly connected to the rotating shaft (2). The three balance wheels (17) are respectively located at the bottom ends of the frame head (3), the frame body (9) and the frame tail (10).

5. The organic fertilizer screening device according to claim 4, characterized in that: The balance wheel (17) comprises a fixed ring (1701), the fixed ring (1701) is sleeved on the outside of the rotating shaft (2), and three fixed piles (1702) are equidistantly fixedly connected to the outside of the fixed ring (1701), the number of the pendulum bars (1704) is three, the three pendulum bars (1704) are respectively rotatably connected to one end of the three fixed piles (1702), and the three pendulum bars (1704) are respectively fixedly connected to the three fixed piles (1702) with torsion springs (1703), the pendulum bars (1704) are arc-shaped, the number of the protrusions (1705) is a plurality, and the plurality of protrusions (1705) are equidistantly and evenly fixedly connected to the outside of the three pendulum bars (1704), and the material of the protrusions (1705) is rubber.

6. The organic fertilizer screening device according to claim 4, characterized in that: A driving wheel (13) is connected to the outer end of the rod body of the rotating shaft (2) through a key, and a driven wheel (11) is connected to the outer end of the rod body of the rotating rod (7) through a key. The diameter of the driving wheel (13) is smaller than the diameter of the driven wheel (11), and the driving wheel (13) and the driven wheel (11) are both pulleys. The driving wheel (13) and the driven wheel (11) are sleeved with the same belt (12). The bottom end of one side of the base (1) is fixedly connected to a housing (15) at the outside of the rotating shaft (2). The driving mechanism comprises a motor (14), and the motor (14) is fixedly connected to an inner wall of one side of the housing (15), and one end of the output shaft of the motor (14) is fixedly connected to the rotating shaft (2).

7. The organic fertilizer screening device according to claim 4, characterized in that: The base (1) is provided with a feed port at the top end of one side close to the frame head (3), and the base (1) is fixedly connected to a feed hopper (4) at the feed port, one end of the feed hopper (4) inside the base (1) extends to the inner side of the frame head (3), and the bottom end of the base (1) is provided with a discharge port below the filter screen (8), and the base (1) is fixedly connected to a discharge hopper (16) at the discharge port, and notches for accommodating the rotating shaft (2) are provided at the top ends of both sides of the discharge hopper (16).

8. The organic fertilizer screening device according to claim 7, characterized in that: A jack (18) is provided on one side of the bottom end of the base (1) close to the feed hopper (4), and the jack (18) is used to adjust and support the base (1) to be in an inclined state.

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