Fertilizer coating machine with high efficiency

Abstract

The invention relates to the technical field of fertilizer manufacturing, and discloses a high-efficiency fertilizer coating machine which comprises a base and further comprises a fixed cylinder connected to the left side of the top of the base, a fixed plate connected to the right side of the top of the base, two ends of a roller are rotationally connected with the fixed cylinder and the fixed plate respectively, and a coating mechanism is arranged on the roller. The impurity removing mechanism is arranged on the left side of the roller and used for removing impurities of the fertilizer entering the roller, and the screening mechanism is arranged on the right side of the roller. Through the synergistic effect of the electrostatic assembly and the atomizing spray pipe, coating agent fog drops are negatively charged, fertilizer particles are positively charged after being rubbed by a friction block, and dust particles are adsorbed by utilizing Coulomb force, so that dust dissipation is reduced, and the health of operators is guaranteed; coulomb force is utilized to break through the limitation of mechanical turning, so that coated liquid drops are directionally adsorbed to the surfaces of particles, and the coating effect of the fertilizer is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fertilizer manufacturing, in particular to a fertilizer coating machine with high efficiency. BACKGROUND

[0002] Coated fertilizer, also known as coated fertilizer, is a kind of fertilizer with slow release nutrient characteristics, which is coated with a layer of semi-permeable or insoluble film on the surface of water-soluble fertilizer particles. There are many types of materials used as coating materials, mainly including sulfur, high molecular polymer, resin, paraffin, asphalt and the like. These film forming substances are wrapped on the surface of water-soluble granular fertilizer, which avoids direct contact of fertilizer with soil and crop roots. Water enters the film to dissolve nutrients, and the osmotic pressure rises to promote the diffusion of nutrients to the soil solution through the film, or slowly release to the outside through the film holes, which is continuously absorbed by crops, reduces the leaching of soluble nutrients, ammonia volatilization loss and phosphorus fixation, and is beneficial to improve the utilization rate of fertilizer.

[0003] According to the fertilizer coating machine disclosed in Chinese patent No. "CN205258340U", the fertilizer coating machine comprises a roller, the two ends of the roller are provided with a feeding port and a discharging port, a spraying pipe is arranged in the roller, a plurality of scrapers are arranged on the inner wall of the roller, the plurality of scrapers are arc-shaped plates, the plurality of arc-shaped plates are uniformly distributed along the inner wall of the roller, and the bending direction of the arc-shaped plates is opposite to the rotation direction of the roller. The beneficial effects of the utility model are as follows: if the bending direction of the arc-shaped plates is the same as the rotation direction of the roller, the arc-shaped plates will wrap the fertilizer particles to a certain extent, so that the fertilizer particles cannot fall from the arc-shaped plates in time and mix with the coating material to achieve the coating effect. Compared with the arc-shaped plates, the flat plates have stronger blocking effect on the fertilizer particles, so that the fertilizer particles will be taken to a higher height and are not conducive to the mixing of the fertilizer particles and the coating material.

[0004] However, a large amount of dust will be generated during the working process of the fertilizer coating machine, which not only causes environmental pollution but also affects the health of the operators, so a fertilizer coating machine with high efficiency is proposed to solve the above problems. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a fertilizer coating machine with high efficiency to solve the problems in the prior art.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a fertilizer coating machine with high efficiency, comprising a base, further comprising: a fixed cylinder connected to the top left side of the base; a fixed plate connected to the top right side of the base; a roller rotatably connected to the fixed cylinder and the fixed plate at both ends; The film coating mechanism is arranged on the roller and used for coating the fertilizer; The impurity removal mechanism is arranged on the left side of the roller and used for removing impurities from the fertilizer entering the roller; The screening mechanism is arranged on the right side of the roller and used for screening the coated fertilizer; The film coating mechanism comprises: The melting tank is arranged on the back of the base; The metering pump is installed on the top of the melting tank, and the input end of the metering pump is in communication with the melting tank; The connecting pipe is arranged in communication with the output end of the metering pump at one end, and the other end of the connecting pipe is fixedly penetrated through one side of the fixed plate; The atomizing nozzle is arranged in communication with the other end of the connecting pipe at one end through the rotary joint; The electrostatic assembly is arranged in the interior of the roller; The conveying assembly is arranged on the roller.

[0007] Preferably, the electrostatic assembly comprises a first conductive slip ring, a rotating cylinder, a spiral piece, a friction block and an electrostatic generator, the first conductive slip ring is installed on the atomizing nozzle, the rotor wire of the first conductive slip ring is connected with the atomizing nozzle, one end of the rotating cylinder is fixed on the inner wall of the roller, the spiral piece is fixed on the inner wall of the rotating cylinder, the friction block is fixed on the inner wall of the rotating cylinder, the electrostatic generator is installed on the top of the base, and the electrostatic generator is connected with the stator wire of the first conductive slip ring.

[0008] Preferably, the fixed cylinder is provided with a feeding pipe, the conveying assembly comprises a cross, a rotating rod and conveying blades, the cross is fixedly connected on the inner wall of the roller, the rotating rod is fixedly connected at the middle position of the cross, and the conveying blades are fixed on the outer wall of the rotating rod and located in the interior of the feeding pipe.

[0009] Preferably, the outer wall of the roller is provided with a transmission gear ring and a supporting ring, a driving motor is installed on the base, a driving gear is fixedly sleeved on the output end of the driving motor and is in meshing connection with the transmission gear ring, a supporting roller is arranged on the base and is in sliding connection with the supporting ring, and the outer wall of the roller is grounded through a second conductive slip ring.

[0010] Preferably, the impurity removal mechanism comprises a connecting plate, a fixed ring and a filter screen, one end of the connecting plate is fixedly connected on the inner wall of the roller, the fixed ring is fixedly connected at the other end of the connecting plate, the filter screen is arranged between the fixed ring and the roller, and the filter screen is connected with the connecting plate.

[0011] Preferably, the impurity removal mechanism further comprises a wavy ring groove, a fixed frame, a sliding groove, a moving plate, a knocking block, a connecting rod, and a sliding rod, the wavy ring groove is arranged on the side of the fixed ring, the fixed frame is fixedly connected to the inner wall of the fixed cylinder, the sliding groove is arranged on the side of the fixed frame, the moving plate is slidably connected to the inner wall of the fixed frame, the knocking block is fixedly connected to the bottom of the moving plate and movably penetrates the bottom of the inner wall of the fixed frame, one end of the connecting rod is fixedly connected to the moving plate through the sliding groove, and the sliding rod is slidably connected to the inner wall of the wavy ring groove and fixedly connected to the other end of the connecting rod.

[0012] Preferably, the inner wall of the fixed cylinder is fixedly connected with a semicircular partition plate, the top of the semicircular partition plate is fixedly connected to the bottom of the feeding pipe, and the bottom of the fixed cylinder is provided with an impurity removal opening.

[0013] Preferably, the screening mechanism comprises a screening net, a baffle, a rotating rod, a fixed seat, a swing rod, a knocking head, an extension rod, a moving rod, a spring, and an arc-shaped block, the screening net is fixedly connected to one end of the rotating cylinder, the baffle is fixedly sleeved on the screening net and fixedly connected to the inner wall of the rotating cylinder, the rotating rod is fixedly connected to the baffle, the fixed seat is fixedly connected to the fixed plate, the swing rod is rotatably connected to the inner wall of the fixed seat, the knocking head is arranged at the bottom of the swing rod, the extension rod is fixedly connected to the fixed plate, the moving rod is fixedly connected to one end of the extension rod, the spring is sleeved on the extension rod, the two ends of the spring are fixedly connected to the fixed plate and the moving rod respectively, and the arc-shaped block is fixedly connected to one end of the moving rod.

[0014] Preferably, the inner wall of the moving rod is provided with a moving block, and the swing rod is provided with a moving groove, and the moving block is slidably connected to the inner wall of the moving groove.

[0015] Preferably, the fixed plate is provided with a discharge opening, the inner wall of the discharge opening is fixedly connected with an arc-shaped plate, one end of the arc-shaped plate is in contact with one end of the screening net, and the curvature radius of the arc-shaped plate is the same as the radius of the screening net.

[0016] The technical scheme disclosed by the application can bring the following beneficial effects: 1. The fertilizer coating machine with high efficiency can make the coating agent droplets carry negative electricity through the cooperation of the electrostatic assembly and the atomizing nozzle, the fertilizer particles carry positive electricity after being rubbed by the rubbing block, the dust particles are adsorbed by using the coulomb force, thereby reducing the dust dispersion and protecting the health of the operator, meanwhile, the electrostatic assembly gives the particles opposite charges of the coating agent, the coulomb force breaks through the limitation of mechanical turning, the coating liquid droplets are adsorbed to the surface of the particles in a directional manner, and the coating effect of the fertilizer is improved.

[0017] 2. The high-efficiency fertilizer coating machine, through the linkage of the wavy groove of the impurity removal mechanism and the sliding rod, periodic knocking of the knocking block on the filter screen is brought about when the roller rotates, ensuring that the fine impurities in the raw materials fall into the collection box through the impurity removal port in a timely manner, reducing the dust content in the fertilizer raw materials, and avoiding the adhesion of impurities affecting the adsorption of the coating liquid.

[0018] 3. The high-efficiency fertilizer coating machine, by setting the cross, the rotating rod is driven to drive the conveying blades to convey the fertilizer when the roller rotates, ensuring that the fertilizer stably enters the inside of the roller 4, and the conveying blades can also shield the feeding pipe, avoiding the escape of dust through the feeding pipe to the outside during the impurity removal process, thereby further protecting the health of the operators.

[0019] 4. The high-efficiency fertilizer coating machine, through the cooperation of the screening net and the arc plate, precise grading of the coated particles is realized, the particles with smaller particle size fall into the inside of the roller through the screening net and are collected through the discharge port, and the particles with larger particle size are discharged along the arc plate. This double-path grading mode can flexibly respond to the demand for fertilizer particle size in different agricultural scenes.

[0020] 5. The high-efficiency fertilizer coating machine, through the linkage design of the rotating rod and the arc block, the rotating rod periodically extrudes the arc block when the roller rotates, and through the elastic action of the moving rod and the spring, the knocking head at the bottom of the swinging rod reciprocally knocks the screening net, which can effectively shake off the particles and coating debris stuck in the screen holes, improving the screening efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the present application; Figure 2 is a back view schematic view of the present application; Figure 3 is a front view cross-sectional view of the present application; Figure 4 is a fixed cylinder and fixed plate schematic view of the present application; Figure 5 is a roller schematic view of the present application; Figure 6 is a roller cross-sectional view of the present application; Figure 7 is an enlarged view schematic view of A of the present application; Figure 8 is an enlarged view schematic view of B of the present application; Figure 9 is a rotating cylinder schematic view of the present application; Figure 10 is a fixed seat schematic view of the present application.

[0022] In the figure: 1, base; 2, fixed cylinder; 3, fixed plate; 4, roller; 5, film wrapping mechanism; 51, melting tank; 52, metering pump; 53, connecting pipe; 54, atomizing nozzle; 55, first conductive slip ring; 56, rotating cylinder; 57, helical blade; 58, friction block; 59, cross; 510, rotating rod; 511, conveying blade; 512, electrostatic generator; 6, impurity removing mechanism; 61, connecting plate; 62, fixed ring; 63, filter screen; 64, wavy ring groove; 65, fixed frame; 66, chute; 67, moving plate; 68, knocking block; 69, connecting rod; 610, sliding rod; 611, impurity removing opening; 612, collecting box; 7, screening mechanism; 71, screening screen; 72, baffle; 73, rotating rod; 74, fixed seat; 75, swinging rod; 76, knocking head; 77, telescopic rod; 78, moving rod; 79, spring; 710, arc block; 8, second conductive slip ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "setting" should be understood broadly, for example, can be fixedly connected, set, or can be detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several" is two or more, unless otherwise explicitly specified and limited.

[0027] See Figures 1-10The application discloses a high-efficiency fertilizer coating machine which comprises a base 1, a fixed cylinder 2 connected to the top left side of the base 1, a fixed plate 3 connected to the top right side of the base 1, a roller 4 rotatably connected to the fixed cylinder 2 and the fixed plate 3 at both ends, a coating mechanism 5 arranged on the roller 4 and used for coating the fertilizer, a dedusting mechanism 6 arranged on the left side of the roller 4 and used for dedusting the fertilizer entering the roller 4, and a screening mechanism 7 arranged on the right side of the roller 4 and used for screening the coated fertilizer. The coating mechanism 5 comprises a melting tank 51 arranged on the back of the base 1, a metering pump 52 installed on the top of the melting tank 51 and communicated with the melting tank 51 at the input end, a connecting pipe 53 communicated with the output end of the metering pump 52 at one end and fixed through one side of the fixed plate 3 at the other end, an atomizing nozzle 54 communicated with the other end of the connecting pipe 53 at one end through a rotary joint, an electrostatic component arranged in the roller 4, and a conveying component arranged on the roller 4. The electrostatic component comprises a first conductive slip ring 55, a rotating cylinder 56, a helical blade 57, a friction block 58 and an electrostatic generator 512. The first conductive slip ring 55 is installed on the atomizing nozzle 54 and connected with the atomizing nozzle 54 at the rotor wire. One end of the rotating cylinder 56 is fixed on the inner wall of the roller 4. The helical blade 57 and the friction block 58 are fixed on the inner wall of the rotating cylinder 56. The electrostatic generator 512 is installed on the top of the base 1 and connected with the stator wire of the first conductive slip ring 55. A feeding pipe is arranged on the fixed cylinder 2. The conveying component comprises a cross 59, a rotating rod 510 and conveying blades 511. The cross 59 is fixedly connected to the inner wall of the roller 4. The rotating rod 510 is fixedly connected to the middle position of the cross 59. The conveying blades 511 are fixed to the outer wall of the rotating rod 510 and located in the feeding pipe. A transmission gear ring and a supporting ring are arranged on the outer wall of the roller 4. A driving motor is installed on the base 1. A driving gear is fixedly sleeved on the output end of the driving motor and meshedly connected with the transmission gear ring. A supporting roller is arranged on the base 1 and slidably connected with the supporting ring. The outer wall of the roller 4 is grounded through a second conductive slip ring 8. The dedusting mechanism 6 comprises a connecting plate 61, a fixed ring 62 and a filter screen 63. One end of the connecting plate 61 is fixedly connected to the inner wall of the roller 4. The fixed ring 62 is fixedly connected to the other end of the connecting plate 61. The filter screen 63 is arranged between the fixed ring 62 and the roller 4 and connected with the connecting plate 61. The dedusting mechanism 6 further comprises a wave ring groove 64, a fixed frame 65, a sliding groove 66, a moving plate 67, a knocking block 68, a connecting rod 69 and a sliding rod 610. The wave ring groove 64 is formed in the side surface of the fixed ring 62. The fixed frame 65 is fixedly connected to the inner wall of the fixed cylinder 2. The sliding groove 66 is formed in the side surface of the fixed frame 65. The moving plate 67 is slidably connected with the inner wall of the fixed frame 65. The knocking block 68 is fixedly connected to the bottom of the moving plate 67.And knock block 68 activity through the inner wall of the fixed frame 65 bottom, connecting rod 69 one end through the sliding slot 66 and the moving plate 67 fixedly connected, sliding rod 610 and the inner wall of the wave ring groove 64 sliding connection, and the sliding rod 610 and the other end of the connecting rod 69 fixedly connected, the inner wall of the fixed cylinder 2 is fixedly connected with semicircular partition, and the top of the semicircular partition is fixedly connected with the bottom of the feed pipe, the bottom of the fixed cylinder 2 is provided with a removal port 611, the top of the base 1 is provided with a collection box 612, and the collection box 612 is below the removal port 611.

[0028] Working principle: through the start of the drive motor drive gear rotation, drive gear drive transmission gear ring rotation, so as to drive the rotation of the drum 4, the drum 4 rotation will be through the cross 59 drive rotating rod 510 rotation, so as to drive the conveying blade 511 rotation, the fertilizer is stably through the feed pipe into the drum 4, the fertilizer will first fall into the filter screen 63, the drum 4 rotation will be through the connecting plate 61 drive fixed ring 62 and filter screen 63 rotation, the fertilizer on the filter screen 63 is turned over, the impurities in the fertilizer will pass through the filter screen 63, from the removal port 611 fall into the collection box 612 for collection, at the same time, the fixed ring 62 rotation will drive the wave ring groove 64 rotation, the wave ring groove 64 rotation will drive the sliding rod 610 up and down, so as to drive the moving plate 67 up and down through the connecting rod 69, and then drive the knock block 68 up and down, knock the filter screen 63, avoid the filter screen 63 blockage, affect the filtering effect, the filtered fertilizer will slide into the rotating cylinder 56, through the start of the metering pump 52 will melt tank 51 in the coating agent through the connecting pipe 53 from the atomizing nozzle 54 in the fertilizer coating, at the same time, through the electrostatic generator 512 on the atomizing nozzle 54 charging operation, make the atomizing nozzle 54 spray coating agent with negative electricity, at the same time, the fertilizer in the rotating cylinder 56 inside rolling at the same time will be with friction block 58 friction, make the fertilizer surface electron through the rotating cylinder 56 and the drum 4 to the earth, cause the fertilizer with positive electricity, the fertilizer particles with opposite charge and coating agent due to coulomb attraction force each other, droplets are adsorbed on the surface of the particles and spread into a film, at the same time, also can collect the dust generated in the rolling process of the fertilizer.

[0029] Please see Figures 1-10On the basis of the above embodiment, in another embodiment of the present invention, preferably, the screening mechanism 7 includes a screening net 71, a baffle 72, a rotating rod 73, a fixed seat 74, a swing rod 75, a knocking head 76, a telescopic rod 77, a moving rod 78, a spring 79, and an arc block 710. The screening net 71 is fixedly connected to one end of the rotating cylinder 56, the baffle 72 is fixedly sleeved on the screening net 71, and the baffle 72 is fixedly connected to the inner wall of the drum 4, the rotating rod 73 is fixedly connected to the baffle 72, the fixed seat 74 is fixedly connected to the fixed plate 3, the swing rod 75 is rotatably connected to the inner wall of the fixed seat 74, and the knocking head 76 is arranged on the swing rod 7 5, the telescopic rod 77 is fixedly connected to the fixed plate 3, the moving rod 78 is fixedly connected to one end of the telescopic rod 77, the spring 79 is sleeved on the telescopic rod 77, the two ends of the spring 79 are respectively fixedly connected to the fixed plate 3 and the moving rod 78, the arc block 710 is fixedly connected to one end of the moving rod 78, the inner wall of the moving rod 78 is provided with a moving block, the swing rod 75 is provided with a moving groove, and the moving block is slidably connected to the inner wall of the moving groove, the fixed plate 3 is provided with a discharge port, the inner wall of the discharge port is fixedly connected with a curved plate, one end of the curved plate is in contact with one end of the screening net 71, and the curvature radius of the curved plate is the same as the radius of the screening net 71.

[0030] Working principle: The fertilizer after coating will fall onto the screening net 71 for screening. The small-sized fertilizer will pass through the screening net 71 and fall onto the inside of the drum 4, and then be discharged through the discharge port for collection, while the large-sized fertilizer will be discharged through the arc plate for collection, which makes it easy to collect fertilizers of different sizes and is suitable for different fertilization environments. At the same time, the screening net 71 and the baffle 72 will rotate with the rotation of the rotating cylinder 56. The rotation of the baffle 72 will drive the rotating rod 73 to rotate. When the rotating rod 73 contacts the arc block 710, it will drive the arc block 710 to move, thereby driving the swing rod 75 to swing through the moving rod 78, so that the knocking head 76 knocks on the screening net 71, thereby improving the screening efficiency of the screening net 71.

[0031] The present invention provides a highly efficient fertilizer coating machine. There are numerous methods and approaches for implementing this technical solution. The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A fertilizer coating machine with high efficiency, comprising a base, characterized in that, Also include: Fixed cylinder, connected in the top left side of the base; Fixed plate, connected in the top right side of the base; Roller, both ends are respectively with fixed cylinder and fixed plate rotation connection; Coating mechanism, set in the roller, for the fertilizer to be coated; Impurity removal mechanism, set in the left side of the roller, for the fertilizer into the roller to remove impurities; Screening mechanism, set in the right side of the roller, for the fertilizer to complete the coating screening; The coating mechanism comprises: Melting tank, set in the back of the base; Metering pump, installed on the top of the melting tank, and the metering pump input end and the melting tank are communicated; Connecting pipe, one end of the connecting pipe is communicated with the output end of the metering pump, and the other end of the connecting pipe is fixedly penetrated through one side of the fixed plate; Atomizing nozzle, one end of the atomizing nozzle is communicated with the other end of the connecting pipe through a rotary joint; Static component, set in the inside of the roller; Conveying assembly, set on the roller.

2. The high efficiency fertilizer coating machine according to claim 1, characterized in that: The static component comprises a first conductive slip ring, a rotating cylinder, a spiral piece, a friction block and a static generator, the first conductive slip ring is installed on the atomizing nozzle, the rotor wire of the first conductive slip ring is connected with the atomizing nozzle, one end of the rotating cylinder is fixed on the inner wall of the roller, the spiral piece is fixed on the inner wall of the rotating cylinder, the friction block is fixed on the inner wall of the rotating cylinder, the static generator is installed on the top of the base, and the static generator is connected with the stator wire of the first conductive slip ring.

3. The high efficiency fertilizer coating machine according to claim 2, characterized in that: The fixed cylinder is provided with a feeding pipe, the conveying assembly comprises a cross, a rotating rod and conveying blades, the cross is fixedly connected to the inner wall of the roller, the rotating rod is fixedly connected to the middle position of the cross, and the conveying blades are fixed to the outer wall of the rotating rod and are located in the inside of the feeding pipe.

4. The high efficiency fertilizer coating machine according to claim 3, characterized in that: The outer wall of the roller is provided with a transmission gear ring and a support ring, a drive motor is installed on the base, a drive gear is fixedly sleeved on the output end of the drive motor, and the drive gear is meshed and connected with the transmission gear ring, a supporting roller is arranged on the base and is slidably connected with the support ring, and the outer wall of the roller is grounded through a second conductive slip ring.

5. The high efficiency fertilizer coating machine according to claim 4, characterized in that: The impurity removal mechanism comprises a connecting plate, a fixed ring and a filter screen, one end of the connecting plate is fixedly connected to the inner wall of the roller, the fixed ring is fixedly connected to the other end of the connecting plate, and the filter screen is arranged between the fixed ring and the roller and connected with the connecting plate.

6. The high efficiency fertilizer coating machine according to claim 5, characterized in that: The impurity removal mechanism further comprises a wave ring groove, a fixed frame, a sliding groove, a moving plate, a knocking block, a connecting rod and a sliding rod, the wave ring groove is formed in the side surface of the fixed ring, the fixed frame is fixedly connected to the inner wall of the fixed cylinder, the sliding groove is formed in the side surface of the fixed frame, the moving plate is slidably connected with the inner wall of the fixed frame, the knocking block is fixedly connected to the bottom of the moving plate and movably penetrates through the inner wall bottom of the fixed frame, one end of the connecting rod penetrates through the sliding groove and is fixedly connected with the moving plate, the sliding rod is slidably connected with the inner wall of the wave ring groove and fixedly connected with the other end of the connecting rod.

7. The high efficiency fertilizer coating machine according to claim 6, characterized in that: The inner wall of the fixed cylinder is fixedly connected with a semicircular partition plate, the top of the semicircular partition plate is fixedly connected with the bottom of the feeding pipe, the bottom of the fixed cylinder is provided with a dedusting opening, the top of the base is provided with a collecting box, and the collecting box is below the dedusting opening.

8. The high efficiency fertilizer coating machine according to claim 7, characterized in that: The screening mechanism comprises a screening net, a baffle, a rotating rod, a fixing seat, a swing rod, a knocking head, an extension rod, a moving rod, a spring and an arc block, the screening net is fixedly connected to one end of the rotating cylinder, the baffle is fixedly sleeved on the screening net and fixedly connected with the inner wall of the rotating cylinder, the rotating rod is fixedly connected to the baffle, the fixing seat is fixedly connected to the fixing plate, the swing rod is rotatably connected to the inner wall of the fixing seat, the knocking head is arranged at the bottom of the swing rod, the extension rod is fixedly connected to the fixing plate, the moving rod is fixedly connected to one end of the extension rod, the spring is sleeved on the extension rod, and the two ends of the spring are fixedly connected with the fixing plate and the moving rod respectively, and the arc block is fixedly connected to one end of the moving rod.

9. The high efficiency fertilizer coating machine according to claim 8, characterized in that: The inner wall of the moving rod is provided with a moving block, and the swing rod is provided with a moving groove, and the moving block is slidably connected with the inner wall of the moving groove.

10. The high efficiency fertilizer coating machine of claim 9, wherein: The fixing plate is provided with a discharging opening, the inner wall of the discharging opening is fixedly connected with an arc plate, one end of the arc plate is in contact with one end of the screening net, and the curvature radius of the arc plate is the same as the radius of the screening net.

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