Multi-stage screening equipment for fertilizer production

Abstract

The invention discloses multi-stage screening equipment for fertilizer production, and relates to the technical field of bio-fertilizer screening, the multi-stage screening equipment comprises a box body, a screening device is arranged on the inner side of the box body, and the screening device comprises a power part. By arranging a motor, a second stirring plate, a first material guide plate, a spiral feeding plate, a second material guide plate, a filter shell and a filter screen, fertilizer is poured into the box body, the filter screen and the filter shell are used for screening the fertilizer twice, the motor is started, the motor drives the second stirring plate to rotate, the second stirring plate stirs the fertilizer above the filter screen, and the fertilizer is uniformly stirred. A spiral feeding plate is driven by an output shaft of a motor to rotate, so that the fertilizer falling into the inner side of the filter shell is conveyed upwards along the inner wall of the filter shell, the small-particle fertilizer penetrates through the filter shell and falls downwards in the upward moving process of the fertilizer, and the fertilizer penetrating through the filter screen is prevented from directly falling onto the spiral feeding plate by utilizing a first guide plate; the small-particle fertilizer is prevented from falling to the inner side of the third discharging pipe.

Description

Technical Field

[0001] The invention relates to the technical field of biofertilizer screening, and in particular to a multi-stage screening device for fertilizer production. Background Art

[0002] Biofertilizer, also known as microbial fertilizer, inoculant or bacterial fertilizer, refers to a type of fertilizer product that uses the life activities of microorganisms as the core to enable crops to obtain specific fertilizer effects. Due to production differences, the fertilizer particles produced are not all uniform. The mixed use of fertilizers with uneven particles will also affect the fertilizer effectiveness, so fertilizers need to be screened.

[0003] A Chinese patent discloses a screening device for the production and processing of biofertilizers, with the publication number CN216359147U, which includes a box, a screening hopper, a linkage propulsion system and a reset system. The screening hoppers are provided with two groups and are arranged side by side up and down. The two groups of screening hoppers are slidably installed inside the box. The linkage propulsion system is arranged on one side of the two groups of screening hoppers. A mounting platform is provided on one side of the box. The mounting platform is fixedly installed with a driving device. The driving device is connected to the linkage propulsion system through a second chain. The reset system corresponds to the two groups of screening hoppers and is movably installed on the other side of the box. After the linkage propulsion system pushes the two groups of screening hoppers to travel a certain distance, the reset system is triggered and pushes the two groups of screening hoppers to reset. Through the mutual cooperation of the linkage propulsion system and the reset system, the screening hoppers are continuously shaken back and forth, which can achieve the purpose of high screening efficiency, greatly shorten the screening time, and improve the screening efficiency.

[0004] However, there are still the following disadvantages: the device starts the driving device to drive the first slide plate and the second slide plate to move left and right, so that the screen shakes and the fertilizer is screened, but the shaking of the filter screen has a poor stirring effect on the fertilizer, which makes the screening efficiency of the biological fertilizer low. Therefore, we propose a multi-stage screening device for fertilizer production to solve this problem. Summary of the invention

[0005] The present invention provides a multi-stage screening device for fertilizer production to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A multi-stage screening device for fertilizer production comprises a box body, a first discharge pipe, a second discharge pipe and a third discharge pipe are fixedly connected to the outer surface of the box body, a screening device is arranged inside the box body, and the screening device comprises a power part; The power unit includes a motor, a filter, a second stirring plate, a first stirring plate, a filter housing and a spiral feeding plate. The bottom surface of the motor is fixedly connected to the top surface of the box body. The outer surface of the motor output shaft rotates through the top surface of the box body and extends to the inner side of the box body through the first bearing. The filter and the outer surface of the filter housing are fixedly connected to the inner wall of the box body. An auxiliary part is arranged outside the box body; The auxiliary part comprises a first conduit, a second conduit, a knocking block, a third stirring plate, two second magnetic blocks and two third magnetic blocks, the two second magnetic blocks (3201) are respectively arranged on the left and right sides of the first stirring plate (3102), the first stirring plate (3102) drives the second magnetic block (3201) to rotate, the outer surface of the bottom end of the first conduit is fixedly connected with the left end surface of the box body, and the two third magnetic blocks are respectively sealed and slidably connected with the inside of the first conduit and the inner wall of the second conduit.

[0007] A further improvement of the technical solution of the present invention is that: the outer surface of the bottom end of the motor output shaft rotates through the second bearing to penetrate the top surface of the filter and extend to the bottom of the filter, the first stirring plate is slidably sleeved on the outer surface of the motor output shaft, and the second stirring plate is fixedly sleeved on the outer surface of the motor output shaft. When the motor is started, the motor drives the second stirring plate to rotate, so that the second stirring plate stirs the fertilizer above the filter, making it easier for small particles of fertilizer to pass through the filter.

[0008] A further improvement of the technical solution of the present invention is that: a connecting rod is hingedly connected to the bottom surface of the first stirring plate, a through groove is provided on the top surface of the second stirring plate, a sliding rod is fixedly connected to the inner wall of the through groove, a fourth magnetic block is slidably sleeved on the outer surface of the sliding rod, the bottom surface of the connecting rod is hinged to the top surface of the fourth magnetic block, an elastic plate is fixedly connected to the inner wall of the through groove, the outer surface of the elastic plate is fixedly connected to the outer surface of the fourth magnetic block, a groove is provided on the inner wall of the box body, the first magnetic block is fixedly connected to the inner wall of the groove, the end faces of the first magnetic block and the fourth magnetic block on the adjacent sides repel each other, and by arranging the fourth magnetic block and the first magnetic block, during the rotation of the second stirring plate, the first magnetic block intermittently pushes the fourth magnetic block to slide along the outer surface of the sliding rod, so that the fourth sliding block drives the connecting rod to move, so that the connecting rod pulls the first stirring plate downward to move up and down, thereby expanding the stirring range of the first stirring plate.

[0009] A further improvement of the technical solution of the present invention is that: the inner wall of the spiral feed plate is adapted to the inner wall of the filter housing, a support rod is fixedly connected to the outer surface of the bottom end of the motor output shaft, the bottom surface of the support rod is fixedly connected to the inner wall of the spiral feed plate, the top surface of the third discharge pipe extends to the inner side of the filter housing and is fixedly connected to the inner wall of the filter housing, and by arranging the spiral feed plate and the filter housing, the spiral feed plate is driven to rotate by the motor output shaft, so that the fertilizer falling on the inner side of the filter housing is transported upward along the inner wall of the filter housing, and in the process of the fertilizer moving upward, small particles of fertilizer pass through the filter housing and fall downward.

[0010] A further improvement of the technical solution of the present invention is that a first material guide plate is sleeved on the outer side of the motor output shaft, and the top surface of the first material guide plate is fixedly connected to the bottom surface of the filter screen. By setting the first material guide plate, the fertilizer passing through the filter screen is prevented from falling directly onto the spiral feeding plate.

[0011] A further improvement of the technical solution of the present invention lies in that: the outer surface of the third magnetic block on the left is fixedly connected with a first elastic member, the outer surface of the first elastic member is fixedly connected to the inner wall of the first conduit, the outer surface of the left end of the knocking block extends to the inside of the first conduit and is slidably connected to the inner wall of the first conduit, the left end face of the knocking block is fixedly connected with a second elastic member, the left end of the second elastic member is fixedly connected to the inner wall of the first conduit, by arranging the second magnetic block, the first elastic member, the third magnetic block, the first conduit, the second elastic member and the knocking block, when the second stirring plate drives the second magnetic block to rotate, the second magnetic block intermittently pushes the third magnetic block on the left to move, and the compressed gas pushes the knocking block to move, so that the right end of the knocking block knocks the first material guide plate.

[0012] A further improvement of the technical solution of the present invention is that: a third stirring plate is provided on the outer surface of the third discharge pipe through a third bearing rotation sleeve, a bevel gear ring is fixedly connected to the bottom surface of the third stirring plate, a rotating shaft is provided on the right side of the box body, the outer surface of the left end of the rotating shaft rotates through the fourth bearing and passes through the right end surface of the box body and extends to the inner side of the box body, a bevel gear is fixedly provided on the outer surface of the left end of the rotating shaft, and the outer surface of the bevel gear is meshed with the outer surface of the bevel gear ring, and by arranging the third stirring plate, the rotating shaft, the bevel gear ring, the bevel gear and the second guide plate, the rotating shaft is rotated so that the third stirring plate scrapes the outer surface of the second guide plate, so that the small particle fertilizer slides out of the second discharge pipe along the outer surface of the second guide plate.

[0013] A further improvement of the technical solution of the present invention is that: the right end face of the third magnetic block on the right side is fixedly connected to the third elastic member, the right end of the third elastic member is fixedly connected to the inner wall of the second conduit, the inner wall of the second conduit is sealingly and slidably connected to a piston, the bottom surface of the piston is hinged with a rocker arm, the bottom end of the rocker arm is rotatably connected to a rotating rod through a pin, the right end face of the rotating shaft is fixedly connected to the outer surface of the rotating rod, and by setting the piston, the second magnetic block intermittently pushes the third magnetic block on the right side to move, so that the air inside the second conduit is compressed, and the compressed gas pushes the piston up and down, and the piston drives the rotating shaft to rotate, so that the third stirring plate rotates.

[0014] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art: 1. The present invention provides a multi-stage screening device for fertilizer production. By arranging a motor, a second stirring plate, a first guide plate, a spiral feed plate, a second guide plate, a filter shell and a filter screen, the fertilizer is poured into the box body, the filter screen and the filter shell are used to screen the fertilizer twice, the motor is started, and the motor drives the second stirring plate to rotate, so that the second stirring plate stirs the fertilizer above the filter screen, so that small-particle fertilizer passes through the filter screen, and the spiral feed plate is driven to rotate by the motor output shaft, so that the fertilizer falling on the inner side of the filter shell is transported upward along the inner wall of the filter shell. In the process of the fertilizer moving upward, the small-particle fertilizer passes through the filter shell and falls downward, and the first guide plate is used to prevent the fertilizer passing through the filter screen from falling directly onto the spiral feed plate, and to prevent the small-particle fertilizer from falling into the inner side of the third discharge pipe; 2. The present invention provides a multi-stage screening device for fertilizer production. By arranging a first stirring plate, a connecting rod, a first magnetic block, an elastic plate, a sliding rod and a fourth magnetic block, during the rotation of the second stirring plate, the first magnetic block intermittently pushes the fourth magnetic block to slide along the outer surface of the sliding rod, so that the fourth sliding block drives the connecting rod to move, so that the connecting rod pulls the first stirring plate downward to move up and down, thereby expanding the stirring range of the first stirring plate and further accelerating the screening of small-particle fertilizers; 3. The present invention provides a multi-stage screening device for fertilizer production. By arranging a second magnetic block, a first elastic member, a third magnetic block, a first guide tube, a second elastic member and a knocking block, when the second stirring plate drives the second magnetic block to rotate, the second magnetic block intermittently pushes the third magnetic block on the left side to move, so that the air inside the first guide tube is compressed, and the compressed gas pushes the knocking block to move, so that the right end of the knocking block knocks the first guide plate, thereby preventing fertilizer particles from accumulating on the top surface of the first guide plate due to friction, playing an auxiliary role in fertilizer filtration and accelerating the filtration efficiency of the device; 4. The present invention provides a multi-stage screening device for fertilizer production. By arranging a second magnetic block, a third magnetic block, a third elastic member, a second conduit, a piston, a rotating shaft, a fixed plate, a bevel gear ring, a third stirring plate and a bevel gear, when the second stirring plate drives the second magnetic block to rotate, the second magnetic block intermittently pushes the third magnetic block on the right side to move, so that the air inside the second conduit is compressed, and the compressed gas pushes the piston to move up and down. The piston drives the rotating shaft to rotate, and the bevel gear and the bevel gear ring are used to rotate the third stirring plate, so that the small fertilizer particles inside the box body are discharged from the box body from the second discharge pipe, which assists the discharger of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a sectional view of the three-dimensional structure of the present invention; Figure 3 It is an exploded view of the local three-dimensional structure of the power unit of the present invention; Figure 4 It is a partial cross-sectional view of the three-dimensional structure of the first conduit of the present invention; Figure 5 It is a partial cross-sectional view of the three-dimensional structure of the second conduit of the present invention; Figure 6 for Figure 2 A magnified view of the structure at center; Figure 7 for Figure 2 Enlarged view of the structure at point B in the middle.

[0016] In the figure: 1, box body; 2, first discharge pipe; 3, screening device; 31, power unit; 32, auxiliary unit; 3101, motor; 3102, first stirring plate; 3103, second stirring plate; 3104, first guide plate; 3105, spiral feeding plate; 3106, second guide plate; 3107, filter housing; 3108, connecting rod; 3109, first magnetic block; 3110, filter screen; 3111, elastic plate; 3112, slide rod; 3113, Fourth magnetic block; 3201, second magnetic block; 3202, first elastic member; 3203, third magnetic block; 3204, first conduit; 3205, second elastic member; 3206, knocking block; 3207, third elastic member; 3208, second conduit; 3209, piston; 3210, rotating shaft; 3211, fixed plate; 3212, bevel gear ring; 3214, third stirring plate; 3215, bevel gear; 4, second discharge pipe; 5, third discharge pipe. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with embodiments: Embodiment 1 like Figure 1-4 As shown, the present invention provides a multi-stage screening equipment for fertilizer production, including a box body 1, a first discharge pipe 2, a second discharge pipe 4 and a third discharge pipe 5 are fixedly connected to the outer surface of the box body 1, a screening device 3 is arranged on the inner side of the box body 1, and the screening device 3 includes a power unit 31.

[0018] The power unit 31 includes a motor 3101, a filter screen 3110, a second stirring plate 3103, a first stirring plate 3102, a filter housing 3107 and a spiral feed plate 3105. The bottom surface of the motor 3101 is fixedly connected to the top surface of the box body 1. The outer surface of the output shaft of the motor 3101 rotates through the top surface of the box body 1 and extends to the inside of the box body 1 through the first bearing. The outer surfaces of the filter screen 3110 and the filter housing 3107 are fixedly connected to the inner wall of the box body 1. The outer surface of the bottom end of the output shaft of the motor 3101 rotates through the filter screen 311 through the second bearing. 0 top surface and extends to the bottom of the filter screen 3110, the first stirring plate 3102 is slidably sleeved on the outer surface of the output shaft of the motor 3101, the second stirring plate 3103 is fixedly sleeved on the outer surface of the output shaft of the motor 3101, the inner wall of the spiral feeding plate 3105 is adapted to the inner wall of the filter housing 3107, the outer surface of the bottom end of the output shaft of the motor 3101 is fixedly connected with a support rod, the bottom surface of the support rod is fixedly connected to the inner wall of the spiral feeding plate 3105, and the top surface of the third discharge pipe 5 extends to the inner side of the filter housing 3107 and is fixedly connected to the inner wall of the filter housing 3107.

[0019] The first guide plate 3104 is sleeved on the outer side of the output shaft of the motor 3101, and the top surface of the first guide plate 3104 is fixedly connected to the bottom surface of the filter screen 3110. By arranging the motor 3101, the second stirring plate 3103, the first guide plate 3104, the spiral feeding plate 3105, the second guide plate 3106, the filter housing 3107 and the filter screen 3110, the fertilizer is poured into the box body 1, and the filter screen 3110 and the filter housing 3107 are used to screen the fertilizer twice, and the motor 3101 is started, and the motor 3101 drives the second stirring plate 3103 to rotate, so that The second stirring plate 3103 stirs the fertilizer above the filter screen 3110 to facilitate the small-particle fertilizer to pass through the filter screen 3110. The output shaft of the motor 3101 drives the spiral feeding plate 3105 to rotate, so that the fertilizer falling on the inner side of the filter housing 3107 is transported upward along the inner wall of the filter housing 3107. During the upward movement of the fertilizer, the small-particle fertilizer passes through the filter housing 3107 and falls downward. The first guide plate 3104 is used to prevent the fertilizer passing through the filter screen 3110 from directly falling on the spiral feeding plate 3105, and to prevent the small-particle fertilizer from falling into the inner side of the third discharge pipe 5. The bottom surface of the first stirring plate 3102 is hinged with a connecting rod 3108, the top surface of the second stirring plate 3103 is provided with a through groove, the inner wall of the through groove is fixedly connected with a sliding rod 3112, the outer surface of the sliding rod 3112 is slidably sleeved with a fourth magnetic block 3113, the bottom surface of the connecting rod 3108 is hinged with the top surface of the fourth magnetic block 3113, the inner wall of the through groove is fixedly connected with an elastic plate 3111, the outer surface of the elastic plate 3111 is fixedly connected with the outer surface of the fourth magnetic block 3113, the inner wall of the box body 1 is provided with a groove, the inner wall of the groove is fixedly connected with the first magnetic block 3109, the first magnetic block 3109 and the fourth magnetic block 3113 are slidably sleeved, The end surfaces on the adjacent sides of 13 repel each other. By setting the first stirring plate 3102, the connecting rod 3108, the first magnetic block 3109, the elastic plate 3111, the sliding rod 3112 and the fourth magnetic block 3113, during the rotation of the second stirring plate 3103, the first magnetic block 3109 intermittently pushes the fourth magnetic block 3113 to slide along the outer surface of the sliding rod 3112, so that the fourth sliding block 3113 drives the connecting rod to move, and the connecting rod pulls the first stirring plate 3102 downward to move up and down, thereby expanding the stirring range of the first stirring plate 3102 and further accelerating the screening of small particle fertilizers.

[0020] Embodiment 2 like Figure 1-4 As shown, on the basis of the first embodiment, an auxiliary part 32 is provided on the outer side of the box body 1 .

[0021] The auxiliary part 32 includes a first conduit 3204, a second conduit 3208, a knocking block 3206, a third stirring plate 3214, two second magnetic blocks 3201 and two third magnetic blocks 3203, the two second magnetic blocks (3201) are respectively provided with the left and right sides of the first stirring plate (3102), the first stirring plate (3102) drives the second magnetic block (3201) to rotate, the outer surface of the bottom end of the first conduit 3204 is fixedly connected with the left end surface of the box body 1, the two third magnetic blocks 3203 are respectively sealed and slidably connected with the inside of the first conduit 3204 and the inner wall of the second conduit 3208, the outer surface of the left third magnetic block 3203 is fixedly connected with the first elastic member 3202, the outer surface of the first elastic member 3202 is fixedly connected with the inner wall of the first conduit 3204, the outer surface of the left end of the knocking block 3206 extends to the inside of the first conduit 3204 and is slidably connected with the inner wall of the first conduit 3204.

[0022] The left end face of the knocking block 3206 is fixedly connected to the second elastic member 3205, and the left end of the second elastic member 3205 is fixedly connected to the inner wall of the first guide tube 3204. By arranging the second magnetic block 3201, the first elastic member 3202, the third magnetic block 3203, the first guide tube 3204, the second elastic member 3205 and the knocking block 3206, when the second stirring plate 3103 drives the second magnetic block 3201 to rotate, the second magnetic block 3201 intermittently pushes the third magnetic block 3203 on the left side to move, so that the air inside the first guide tube 3204 is compressed, and the compressed gas pushes the knocking block 3206 to move, so that the right end of the knocking block 3206 knocks the first guide plate 3104, thereby preventing fertilizer particles from accumulating on the top surface of the first guide plate 3104 due to friction, thereby assisting fertilizer filtration and accelerating the filtration efficiency of the device.

[0023] Embodiment 3 like Figure 1-7 As shown, on the basis of Example 1, the outer surface of the third discharge pipe 5 is provided with a third stirring plate 3214 through a third bearing rotation sleeve, and the bottom surface of the third stirring plate 3214 is fixedly connected with a bevel gear ring 3213, and a rotating shaft 3210 is arranged on the right side of the box body 1. The outer surface of the left end of the rotating shaft 3210 rotates through the fourth bearing and passes through the right end surface of the box body 1 and extends to the inner side of the box body 1, and a bevel gear 3215 is fixedly provided on the outer surface of the left end of the rotating shaft 3210, and the outer surface of the bevel gear 3215 is meshed with the outer surface of the bevel gear ring 3213, and the right end surface of the third magnetic block 3203 on the right side is fixedly connected with the third elastic member 3207, and the right end of the third elastic member 3207 is fixedly connected to the inner wall of the second conduit 3208.

[0024] The inner wall of the second conduit 3208 is sealed and slidably connected with a piston 3209, the bottom surface of the piston 3209 is hinged with a swing rod, the bottom end of the swing rod is rotatably connected with a rotating rod through a pin, and the right end surface of the rotating shaft 3210 is fixedly connected to the outer surface of the rotating rod. By arranging the second magnetic block 3201, the third magnetic block 3203, the third elastic member 3207, the second conduit 3208, the piston 3209, the rotating shaft 3210, the fixed plate 3211, the bevel gear ring 3212, the third stirring plate 3214 and the bevel gear 3215, the second stirring plate During the process of 3103 driving the second magnetic block 3201 to rotate, the second magnetic block 3201 intermittently pushes the third magnetic block 3203 on the right to move, so that the air inside the second conduit 3208 is compressed, and the compressed gas pushes the piston 3209 to move up and down. The piston 3209 drives the rotating shaft 3210 to rotate, and the bevel gear 3215 and the bevel gear ring 3213 are used to rotate the third stirring plate 3214, so that the small fertilizer particles inside the box body 1 are discharged from the second discharge pipe 4 to the box body 1, thereby assisting the discharger of the device.

[0025] The working principle of the screening device for the production and processing of biofertilizer which is convenient for taking and placing materials is described in detail below.

[0026] When in use, the fertilizer is poured into the box body 1, and the motor 3101 is started. The motor 3101 drives the second stirring plate 3103 to rotate, so that the second stirring plate 3103 stirs the fertilizer above the filter screen 3110. At the same time, during the rotation of the second stirring plate 3103, the first magnetic block 3109 intermittently pushes the fourth magnetic block 3113 to slide along the outer surface of the sliding rod 3112, so that the fourth sliding block 3113 drives the connecting rod to move, and the connecting rod pulls the first stirring plate 3102 downward to move up and down, so that small and medium-sized fertilizer particles pass through the filter screen 3110, and the small and medium-sized fertilizer particles slide along the first guide plate 3104, so that the small and medium-sized fertilizer particles are dispersed on the outside of the spiral feeding plate 3105. The output shaft of the motor 3101 drives the spiral feeding plate 3105 to rotate, so that the small and medium-sized fertilizer slides upward along the inner wall of the filter shell 3107. During this period, the small particles of fertilizer pass through the filter shell 3107 and fall downward, and the medium-sized fertilizer particles move to the filter shell 310 7 middle top, and falls into the third discharge pipe 5. During the rotation of the second stirring plate 3103 driving the second magnetic block 3201, the second magnetic block 3201 intermittently pushes the third magnetic block 3203 on the left to move leftward, so that the air inside the first conduit 3204 is compressed, and the compressed gas pushes the knocking block 3206 to move, so that the right end of the knocking block 3206 knocks the first guide plate 3104, and the fertilizer particles in the first guide plate 3104 slide. At the same time, the second magnetic block 3201 intermittently pushes the third magnetic block 3203 on the right to move rightward, so that the air inside the second conduit 3208 is compressed, and the compressed gas pushes the piston 3209 to move up and down, and the piston 3209 drives the rotating shaft 3210 to rotate. The bevel gear 3215 and the bevel gear ring 3213 are used to make the rotating shaft 3210 drive the third stirring plate 3214 to rotate, so that the small fertilizer particles inside the box body 1 are discharged from the second discharge pipe 4 to the box body 1.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A multi-stage screening device for fertilizer production, comprising a housing (1), characterized in that: The outer surface of the box body (1) is fixedly connected with a first discharge pipe (2), a second discharge pipe (4) and a third discharge pipe (5), and a screening device (3) is arranged inside the box body (1). The screening device (3) comprises a power unit (31); The power unit (31) comprises a motor (3101), a filter screen (3110), a second stirring plate (3103), a first stirring plate (3102), a filter housing (3107) and a spiral feed plate (3105); the bottom surface of the motor (3101) is fixedly connected to the top surface of the housing (1); the outer surface of the output shaft of the motor (3101) rotates through the top surface of the housing (1) and extends to the inside of the housing (1) via a first bearing; the outer surfaces of the filter screen (3110) and the filter housing (3107) are both fixedly connected to the inner wall of the housing (1); the outer surface of the bottom end of the output shaft of the motor (3101) rotates through the second bearing The first stirring plate (3102) is slidably mounted on the outer surface of the output shaft of the motor (3101), and the second stirring plate (3103) is fixedly mounted on the outer surface of the output shaft of the motor (3101). The second stirring plate (3103) stirs the fertilizer above the filter (3110). The inner wall of the spiral feeding plate (3105) is matched with the inner wall of the filter housing (3107). The outer surface of the bottom end of the output shaft of the motor (3101) is fixedly connected to a support rod, and the bottom surface of the support rod is fixedly connected to the inner wall of the spiral feeding plate (3105); The bottom surface of the first stirring plate (3102) is hinged with a connecting rod (3108), the top surface of the second stirring plate (3103) is provided with a through groove, the inner wall of the through groove is fixedly connected with a sliding rod (3112), the outer surface of the sliding rod (3112) is slidably sleeved with a fourth magnetic block (3113), the bottom surface of the connecting rod (3108) is hinged with the top surface of the fourth magnetic block (3113), the inner wall of the through groove is fixedly connected with an elastic plate (3111), the outer surface of the elastic plate (3111) is fixedly connected with the outer surface of the fourth magnetic block (3113), the inner wall of the box body (1) is provided with a groove, the inner wall of the groove is fixedly connected with a first magnetic block (3109), the end surfaces of the first magnetic block (3109) and the fourth magnetic block (3113) on the side close to each other repel each other, and the top surface of the third discharge pipe (5) extends to the inner side of the filter housing (3107) and is fixedly connected to the inner wall of the filter housing (3107); A first guide plate (3104) is sleeved on the outer side of the output shaft of the motor (3101); the top surface of the first guide plate (3104) is fixedly connected to the bottom surface of the filter screen (3110); the first guide plate (3104) is used to prevent fertilizer that passes through the filter screen (3110) from directly falling onto the spiral feeding plate (3105), thereby preventing small particles of fertilizer from falling onto the inner side of the third discharge pipe (5); An auxiliary portion (32) is provided on the outside of the box body (1); The auxiliary part (32) comprises a first conduit (3204), a second conduit (3208), a knocking block (3206), a third stirring plate (3214), two second magnetic blocks (3201) and two third magnetic blocks (3203), wherein the two second magnetic blocks (3201) are respectively provided on the left and right sides of the first stirring plate (3102), the first stirring plate (3102) drives the second magnetic blocks (3201) to rotate, and the outer surface of the bottom end of the first conduit (3204) is fixed to the left end surface of the box body (1). The two third magnetic blocks (3203) are respectively sealed and slidably connected to the inside of the first conduit (3204) and the inner wall of the second conduit (3208); the outer surface of the third magnetic block (3203) on the left side is fixedly connected to the first elastic member (3202); the outer surface of the first elastic member (3202) is fixedly connected to the inner wall of the first conduit (3204); the outer surface of the left end of the knocking block (3206) extends to the inside of the first conduit (3204) and is slidably connected to the inner wall of the first conduit (3204); The left end face of the knocking block (3206) is fixedly connected to a second elastic member (3205), the left end of the second elastic member (3205) is fixedly connected to the inner wall of the first conduit (3204), the right end face of the third magnetic block (3203) on the right side is fixedly connected to a third elastic member (3207), the right end of the third elastic member (3207) is fixedly connected to the inner wall of the second conduit (3208), and when the first stirring plate (3102) drives the second magnetic block (3201) to rotate, the second magnetic block (3201) intermittently pushes the third magnetic block (3203) on the left side to move leftward, so that the right end of the knocking block (3206) knocks the first material guide plate (3104).

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