A powder removing and drying apparatus for granular fertilizer
By employing methods such as electrostatic adsorption of dust, intermittent control of material entry, and separation of fertilizer by a separating plate, the problems of dust pollution and breakage during the drying process of granular fertilizer have been solved, achieving efficient and complete drying results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANTONG HANWEI MACHINERY MFG CO LTD
- Filing Date
- 2023-12-25
- Publication Date
- 2026-07-21
Smart Images
Figure CN117704760B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fertilizer drying technology, specifically to a powder removal and drying device for granular fertilizer. Background Technology
[0002] Pellet fertilizer drying is the process of drying moist granular fertilizer through heat treatment to achieve the desired degree of dryness. This process is crucial to the quality and shelf life of granular fertilizer.
[0003] Patent publication number CN116026113B relates to a de-dusting and drying device for granular fertilizer. The invention includes a base frame, an outer drying cylinder, and an inner drying cylinder. The outer drying cylinder is rotatably connected to the base frame, and the inner drying cylinder is rotatably connected inside the outer drying cylinder. The surface of the inner drying cylinder has several through holes, and a hot air pipe is installed inside the inner drying cylinder, with several air outlets on its surface. The inner wall of the outer drying cylinder has a first spiral blade for conveying the granular fertilizer, and the inner wall of the inner drying cylinder has a second spiral blade for conveying the granular fertilizer. The conveying directions of the granular fertilizer in the outer and inner drying cylinders are opposite. One end of the outer drying cylinder is connected to a reciprocating pusher cover, which pushes the fertilizer from the outer drying cylinder into the inner drying cylinder. This patent reduces the equipment's footprint by having an inner drying cylinder inside the outer drying cylinder, allowing the fertilizer to be dried in both the outer and inner drying cylinders.
[0004] In the aforementioned patent, by setting an inner drying cylinder inside the outer drying cylinder, the fertilizer is dried in both the outer and inner drying cylinders, reducing the equipment's footprint. However, when drying granular fertilizer, the granular fertilizer is prone to generating dust after drying, and excessive dust around the drying device will affect the drying environment. At the same time, the granular fertilizer will break during drying, and the broken granular fertilizer will affect its integrity, thus requiring the separation of the broken granular fertilizer. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a powder removal and drying device for granular fertilizers, which solves the problems mentioned in the background section.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a powder removal and drying device for granular fertilizer, comprising a drying frame, a dust suppression device, and a material control device; wherein, a feeding frame is fixedly installed on the surface of the drying frame, a feeding pipe is fixedly installed at the bottom of the feeding frame, a filter cylinder is rotatably installed inside the drying frame, a spiral shaft is fixedly installed inside the filter cylinder, an arc-shaped plate is slidably installed on the surface of the filter cylinder, a threaded rod is rotatably installed on the surface of the arc-shaped plate, the threaded rod is threadedly connected to the drying frame, and a discharge port is opened on the surface of the filter cylinder. The arc-shaped plate can seal the discharge port of the filter cylinder, and the movement of the threaded rod can drive the arc-shaped plate to move and open and close the discharge port; wherein, the dust suppression device includes a suction device. The dryer includes an auxiliary plate, a guide plate, a spiral plate, a sliding rod, a contact rod, a friction plate, and a conductive block. Through electrostatic attraction, the rod adsorbs fertilizer particles floating inside the drying frame. When the sliding rod moves to the far left, it contacts the conductive block, causing the conductive block to release static electricity from the surface of the sliding rod. The adsorption plate is fixedly installed through the top of the drying frame. The guide plate is fixedly installed on the bottom of the inner wall of the drying frame. The spiral plate is fixedly installed on the outer wall surface of the filter cartridge. The sliding rod slides on the surface of the adsorption plate. The contact rod is fixedly installed on the surface of the sliding rod. The friction plate and the conductive block are both fixedly installed on the surface of the adsorption plate. A return spring is provided between the sliding rod and the adsorption plate. The static electricity generated by the sliding rod can adsorb dust generated inside the drying frame, causing the adsorbed dust to be collected inside the guide plate.
[0007] According to the above technical solution, a convex plate is fixedly installed on the inner wall of the guide plate. When the convex plate is impacted, it will cause the guide plate to vibrate. A collection frame is fixedly installed at the bottom of the drying frame. The fertilizer inside the guide plate moves into the collection frame, which improves the effect of the fertilizer inside the guide plate moving into the collection frame. The extrusion plate is rotatably installed on the top of the collection frame. A torsion spring is provided between the extrusion plate and the collection frame. The mounting plate is fixedly installed on the surface of the slide rod. When the mounting plate moves to the left, it will push the extrusion plate to rotate downward. When the extrusion plate rotates downward, it will compact the fertilizer inside the collection frame, thereby increasing the amount of fertilizer collected inside the collection frame.
[0008] According to the above technical solution, the material control device includes an inclined plate, a bending block, a movable rod, a triangular block, a pusher frame, and a protrusion. When the triangular block moves, its inclined surface pushes the pusher frame to move. When the pusher frame moves, it pushes the bending block and the inclined plate to rotate. The rotation of the inclined plate opens the bottom. The inclined plate is rotatably installed inside the feed frame. A second torsion spring is provided between the inclined plate and the feed frame. The bending block is fixedly installed at the bottom of the inclined plate. The movable rod slides through the feed pipe. A first spring is provided between the movable rod and the feed pipe. The triangular block is fixedly installed on the surface of the movable rod. The pusher frame is slidably installed inside the feed pipe. The protrusion is fixedly installed on the surface of the spiral shaft. The material inside the feed frame intermittently enters the inside of the feed pipe to prevent too much fertilizer from entering the filter cylinder, which would result in insufficient drying of the fertilizer.
[0009] According to the above technical solution, a push rod is hinged to the surface of the movable rod, and a limiting block is fixedly installed on the surface of the movable rod. The limiting block can limit the push rod in one direction, so that the push rod will push the fertilizer inside the feed pipe downward to clear the inside of the feed pipe. A second torsion spring is provided between the movable rod and the push rod.
[0010] According to the above technical solution, it also includes a material distribution device and a dehumidification device. The surface of the feed pipe is provided with a material distribution device, which includes an elastic telescopic rod, a material distribution plate, a fixed rod, and a transmission rod. When the transmission rod moves, it pushes the free end of the elastic telescopic rod to move up and down. The up and down movement of the free end of the elastic telescopic rod drives the material distribution plate to move up and down. The elastic telescopic rod is fixedly installed at the bottom of the feed pipe. The material distribution plate is fixedly installed at the free end of the elastic telescopic rod. The fixed rod is fixedly installed on the surface of the movable rod. The top of the transmission rod is hinged to the fixed rod, and the bottom of the transmission rod is hinged to the free end of the elastic telescopic rod. When the material distribution plate shakes up and down, it separates the fertilizer, preventing the damp fertilizer from sticking together and affecting the drying efficiency.
[0011] According to the above technical solution, a swing plate is rotatably mounted on the surface of the distribution plate, and a No. 3 torsion spring is provided between the swing plate and the distribution plate. A through hole is opened on the surface of the swing plate, and an arc-shaped block is rotatably mounted inside the through hole. A No. 4 torsion spring is provided between the arc-shaped block and the through hole. A fixing block is fixedly mounted on the top of the distribution plate, and a swing block is rotatably mounted on the surface of the swing plate. When the distribution plate moves up and down, it will drive the swing plate and the swing block to swing up and down. When the swing plate swings down, it will drive the arc-shaped block to rotate down. When the arc-shaped block rotates down, the fixing block will push the arc-shaped block to rotate up quickly, so that the fertilizer can be more dispersed into the interior of the filter cylinder.
[0012] According to the above technical solution, the dehumidification device includes a purification frame, an exhaust fan, a moisture-proof plate, and a baffle. The exhaust fan draws in humid air from the top of the drying frame through a pipe and an adsorption plate. The humid air is filtered by the moisture-proof plate, and the dry air re-enters the interior of the drying frame. The purification frame is fixedly installed on the top of the drying frame, and the exhaust fan is fixedly installed inside the purification frame. The exhaust fan is connected to the adsorption plate through a pipe. The moisture-proof plate is located inside the purification frame. The baffle is slidably installed on the surface of the purification frame. A second spring is provided between the baffle and the purification frame. The surface of the purification frame has a replacement port to prevent the air inside the drying frame from being too humid, which would affect the drying effect. At the same time, the moisture-proof plate dries the drawn-in air, allowing the high-temperature air to re-enter the interior of the drying frame, thus reducing heat loss inside the drying frame.
[0013] According to the above technical solution, a linkage rod is fixedly installed on the top of the baffle, a sealing plate is slidably installed on the bottom of the exhaust fan, an inclined block is fixedly installed on the bottom of the sealing plate, and an air inlet is opened on the surface of the sealing plate. When the linkage rod moves upward, it will push the inclined block and the sealing plate to move. A No. 3 spring is set between the sealing plate and the exhaust fan to prevent a large amount of high-temperature air from leaking from the purification frame when the moisture-proof plate is replaced if the exhaust fan is not turned off in time.
[0014] This invention provides a powder removal and drying device for granular fertilizer. It has the following beneficial effects:
[0015] (1) In this invention, the motor drives the filter cylinder to rotate, and the rotation of the filter cylinder enables the drying frame to dry the fertilizer evenly. At the same time, the filter cylinder can separate the broken fertilizer. When the filter cylinder rotates, it drives the spiral plate to rotate. When the spiral plate rotates, it pushes the contact rod and the slide rod to move. When the slide rod moves, it will rub against the friction plate to generate static electricity. The static electricity generated by the slide rod can adsorb the dust generated inside the drying frame. The conductive block will release the static electricity on the slide rod, so that the adsorbed dust will be collected into the guide plate and the collection frame.
[0016] (2) In this invention, when the spiral shaft rotates, it will drive the protrusion to rotate. When the protrusion rotates, it will push the movable rod to move. When the movable rod moves, it will drive the triangular block to move. When the triangular block moves, it will push the pusher frame to move up and down. When the moving frame moves up and down, it will push the inclined plate to open intermittently, so that the material inside the feed frame will enter the inside of the feed pipe intermittently, preventing too much fertilizer from entering the filter cylinder and causing the fertilizer to be not dried sufficiently.
[0017] (3) In this invention, when the movable rod moves, it will drive the fixed rod to move. When the fixed rod moves, it will push the free end of the elastic telescopic rod and the material distribution plate to shake up and down through the transmission rod. When the material distribution plate shakes up and down, it will separate the fertilizer and prevent the wet fertilizer from sticking together and affecting the drying efficiency. At the same time, when the material distribution plate shakes up and down, it will drive the swing plate to swing up and down. When the swing plate swings up and down, the fixed block will push the arc block to rotate. When the arc block rotates, it will throw the fertilizer out, so that the fertilizer can be more dispersed and enter the interior of the filter cylinder.
[0018] (4) In this invention, the exhaust fan can draw in the humid air at the top of the drying frame, which avoids the air inside the drying frame being too humid and affecting the drying effect. At the same time, the moisture-proof plate will dry the air drawn in, so that the high-temperature air can re-enter the interior of the drying frame, which can reduce the heat loss inside the drying frame. When the moisture-proof plate is replaced, the baffle moves upward and the sealing plate will seal the exhaust fan, which will prevent a large amount of high-temperature air from leaking out of the purification frame when the exhaust fan is not turned off in time and the moisture-proof plate is replaced. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0020] Figure 2 This is a schematic diagram of the internal structure of the drying frame of the present invention;
[0021] Figure 3 This is a schematic diagram of the position and structure of the adsorption plate and the sliding rod of the present invention;
[0022] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of section A in the middle;
[0023] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of section B;
[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the feed pipe of the present invention;
[0025] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of section C in the middle;
[0026] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of section D in the middle;
[0027] Figure 9 For the present invention Figure 6 Enlarged schematic diagram of section E in the middle;
[0028] Figure 10 This is a schematic diagram of the cross-sectional structure of the purification frame of the present invention.
[0029] In the diagram: 1. Drying frame; 2. Feeding frame; 3. Feeding pipe; 41. Filter cylinder; 42. Arc plate; 43. Threaded rod; 44. Spiral shaft; 51. Adsorption plate; 52. Guide plate; 53. Spiral plate; 54. Slide rod; 55. Contact rod; 56. Friction plate; 57. Conductive block; 58. Collection frame; 59. Extrusion plate; 510. Mounting plate; 511. Convex plate; 61. Inclined plate; 62. Bending block; 63. 64. Movable rod; 65. Triangular block; 66. Pushing frame; 67. Protrusion; 68. Pushing rod; 79. Limiting block; 70. Elastic telescopic rod; 71. Material distribution plate; 72. Fixed rod; 73. Transmission rod; 74. Swinging plate; 75. Arc-shaped block; 76. Fixed block; 77. Swinging block; 88. Clean frame; 89. Exhaust fan; 80. Moisture-proof board; 81. Baffle; 82. Linkage rod; 83. Sealing plate; 84. Inclined block. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] Please see Figures 1-8One embodiment of the present invention is a powder removal and drying device for granular fertilizer, comprising a drying frame 1, a dust suppression device, and a material control device; wherein, a feeding frame 2 is fixedly installed on the surface of the drying frame 1, a feeding pipe 3 is fixedly installed at the bottom of the feeding frame 2, a filter cylinder 41 is rotatably installed inside the drying frame 1, a spiral shaft 44 is fixedly installed inside the filter cylinder 41, an arc-shaped plate 42 is slidably installed on the surface of the filter cylinder 41, a threaded rod 43 is rotatably installed on the surface of the arc-shaped plate 42, the threaded rod 43 is threadedly connected to the drying frame 1, and a discharge port is opened on the surface of the filter cylinder 41. The discharge port of the filter cylinder 41 can be sealed by the arc-shaped plate 42, and the discharge port can be opened and closed by moving the threaded rod 43; wherein, the dust suppression device comprises an adsorption plate 51, a guide plate 52, a spiral plate 53, a sliding rod 54, a contact rod 55, a friction plate 56, and a conductive block 57. When the spiral plate 53 rotates, it pushes the contact... The rod 55 and the slide bar 54 move. When the slide bar 54 moves, it rubs against the friction plate 56. The friction between the slide bar 54 and the friction plate 56 causes static electricity to be generated on the surface of the slide bar 54. The static electricity will attract the fertilizer floating inside the drying frame 1. When the slide bar 54 moves to the leftmost position, it will contact the conductive block 57, which will release the static electricity on the surface of the slide bar 54. The adsorption plate 51 is fixedly installed through the top of the drying frame 1. The guide plate 52 is fixedly installed on the bottom of the inner wall of the drying frame 1. The spiral plate 53 is fixedly installed on the outer wall surface of the filter cylinder 41. The slide bar 54 is slidably installed on the surface of the adsorption plate 51. The contact rod 55 is fixedly installed on the surface of the slide bar 54. The friction plate 56 and the conductive block 57 are both fixedly installed on the surface of the adsorption plate 51. A return spring is provided between the slide bar 54 and the adsorption plate 51. The static electricity generated by the slide bar 54 can attract the dust generated inside the drying frame 1, so that the adsorbed dust will be collected inside the guide plate 52.
[0032] A convex plate 511 is fixedly installed on the inner wall of the guide plate 52. When the convex plate 511 is impacted, it will cause the guide plate 52 to vibrate. A collection frame 58 is fixedly installed at the bottom of the drying frame 1. The fertilizer inside the guide plate 52 moves into the collection frame 58, which improves the effect of the fertilizer inside the guide plate 52 moving into the collection frame 58. The extrusion plate 59 is rotatably installed on the top of the collection frame 58. A torsion spring is provided between the extrusion plate 59 and the collection frame 58. The mounting plate 510 is fixedly installed on the surface of the slide rod 54. When the mounting plate 510 moves to the left, it will push the extrusion plate 59 to rotate downward. When the extrusion plate 59 rotates downward, it will compact the fertilizer inside the collection frame 58, thereby increasing the amount of fertilizer collected inside the collection frame 58.
[0033] The material control device includes an inclined plate 61, a bending block 62, a movable rod 63, a triangular block 64, a pusher frame 65, and a protrusion 66. When the protrusion 66 rotates, it pushes the movable rod 63 to move. When the movable rod 63 moves, it drives the triangular block 64 to move. When the triangular block 64 moves, its inclined surface pushes the pusher frame 65 to move. When the pusher frame 65 moves, it pushes the bending block 62 and the inclined plate 61 to rotate. The rotation of the inclined plate 61 opens its bottom. The inclined plate 61 is rotatably installed inside the feed frame 2. A second torsion spring is provided between 61 and the feed frame 2. The bending block 62 is fixedly installed at the bottom of the inclined plate 61. The movable rod 63 slides through the feed pipe 3. A first spring is provided between the movable rod 63 and the feed pipe 3. The triangular block 64 is fixedly installed on the surface of the movable rod 63. The pusher 65 is slidably installed inside the feed pipe 3. The protrusion 66 is fixedly installed on the surface of the spiral shaft 44. The material inside the feed frame 2 enters the inside of the feed pipe 3 intermittently to prevent too much fertilizer from entering the filter cylinder 41, which would result in insufficient drying of the fertilizer.
[0034] A push rod 67 is hinged to the surface of the movable rod 63. A limiting block 68 is fixedly installed on the surface of the movable rod 63. The limiting block 68 can limit the push rod 67 in one direction, so that the push rod 67 will push the fertilizer inside the feed pipe 3 to move downward and clear the inside of the feed pipe 3. A second torsion spring is provided between the movable rod 63 and the push rod 67.
[0035] In this embodiment, the drying frame 1 heats the inside of the filter cylinder 41, and a motor drives the filter cylinder 41 to rotate. Fertilizer enters the filter cylinder 41 through the feed frame 2 and feed pipe 3. The rotation of the filter cylinder 41 drives the spiral plate 53 to rotate, and the spiral plate 53 contacts the contact rod 55. This rotation of the spiral plate 53 pushes the contact rod 55 and the sliding rod 54 to move. As the sliding rod 54 moves, it rubs against the friction plate 56, generating static electricity on its surface. This static electricity attracts the fertilizer floating inside the drying frame 1. When the sliding rod 54 moves to the far left, it contacts a conductive... When block 57 contacts, the conductive block 57 releases the static electricity on the surface of slide bar 54. When slide bar 54 is free of static electricity, the fertilizer adhering to its surface will fall into the interior of guide plate 52. As slide bar 54 moves, it will impact convex plate 511. After being impacted, convex plate 511 will cause guide plate 52 to vibrate, causing the fertilizer inside guide plate 52 to move into the interior of collection frame 58. When slide bar 54 moves to the left, it will cause mounting plate 510 to move to the left. When mounting plate 510 moves to the left, it will push squeezing plate 59 to rotate downward. When squeezing plate 59 rotates downward, it will compact the fertilizer inside collection frame 58. Loose fertilizer will affect the collection of fertilizer by collection frame 58.
[0036] When the filter cylinder 41 rotates, it drives the spiral shaft 44 to rotate. When the spiral shaft 44 rotates, it drives the protrusion 66 to rotate. When the protrusion 66 rotates, it pushes the movable rod 63 to move. When the movable rod 63 moves, it drives the triangular block 64 to move. When the triangular block 64 moves, its inclined surface pushes the pusher frame 65 to move. When the pusher frame 65 moves, it pushes the bending block 62 and the inclined plate 61 to rotate. When the inclined plate 61 rotates, it opens its bottom. The second torsion spring drives the inclined plate 61 to reset, so that the bottom of the inclined plate 61 will open intermittently, allowing fertilizer to enter the feed pipe 3 and the interior of the filter cylinder 41 intermittently. When the movable rod 63 moves, it drives the pusher rod 67 to move. The limiting block 68 will limit the pusher rod 67 in one direction, so that the pusher rod 67 will push the fertilizer inside the feed pipe 3 downward.
[0037] Please see Figures 1-10 Based on the above embodiments, another embodiment of the present invention further includes a material distribution device and a dehumidification device. The surface of the feed pipe 3 is provided with a material distribution device, which includes an elastic telescopic rod 71, a material distribution plate 72, a fixed rod 73, and a transmission rod 74. When the fixed rod 73 moves, it will drive the transmission rod 74 to move. When the transmission rod 74 moves, it will push the free end of the elastic telescopic rod 71 to move up and down. The up and down movement of the free end of the elastic telescopic rod 71 will drive the material distribution plate 72 to move up and down. The elastic telescopic rod 71 is fixedly installed at the bottom of the feed pipe 3, the material distribution plate 72 is fixedly installed at the free end of the elastic telescopic rod 71, and the fixed rod 73 is fixedly installed on the surface of the movable rod 63. The top of the transmission rod 74 is hinged to the fixed rod 73, and the bottom of the transmission rod 74 is hinged to the free end of the elastic telescopic rod 71. When the material distribution plate 72 shakes up and down, it will separate the fertilizer to prevent the damp fertilizer from sticking together and affecting the drying efficiency.
[0038] A swing plate 75 is rotatably mounted on the surface of the distribution plate 72. A torsion spring No. 3 is provided between the swing plate 75 and the distribution plate 72. A through hole is opened on the surface of the swing plate 75. An arc-shaped block 76 is rotatably mounted inside the through hole. A torsion spring No. 4 is provided between the arc-shaped block 76 and the through hole. A fixing block 77 is fixedly mounted on the top of the distribution plate 72. A swing block 78 is rotatably mounted on the surface of the swing plate 75. When the distribution plate 72 moves up and down, it will drive the swing plate 75 and the swing block 78 to swing up and down. When the swing plate 75 swings down, it will drive the arc block 76 to rotate down. When the arc block 76 rotates down, the fixing block 77 will push the arc block 76 to rotate up quickly. Fertilizer can enter the interior of the filter cylinder 41 more dispersedly.
[0039] The dehumidification device includes a purification frame 81, an exhaust fan 82, a moisture-proof plate 83, and a baffle 84. The exhaust fan 82 draws in humid air from the top of the drying frame 1 through a pipe and an adsorption plate 51. The humid air is filtered by the moisture-proof plate 83, and the dry air re-enters the interior of the drying frame 1. The purification frame 81 is fixedly installed on the top of the drying frame 1, and the exhaust fan 82 is fixedly installed inside the purification frame 81. The exhaust fan 82 is connected to the adsorption plate 51 through a pipe. The moisture-proof plate 83 is set inside the purification frame 81, and the baffle 84 is slidably installed on the surface of the purification frame 81. A second spring is installed between the baffle 84 and the purification frame 81. The surface of the purification frame 81 has a replacement port to prevent the air inside the drying frame 1 from being too humid, which would affect the drying effect. At the same time, the moisture-proof plate 83 dries the drawn-in air, allowing the high-temperature air to re-enter the interior of the drying frame 1, thus reducing heat loss inside the drying frame 1.
[0040] A linkage rod 85 is fixedly installed on the top of the baffle 84, and a sealing plate 86 is slidably installed on the bottom of the exhaust fan 82. An inclined block 87 is fixedly installed on the bottom of the sealing plate 86. An air inlet is opened on the surface of the sealing plate 86. When the baffle 84 moves upward, it will drive the linkage rod 85 to move upward. When the linkage rod 85 moves upward, it will contact the inclined surface of the inclined block 87, so that when the linkage rod 85 moves upward, it will push the inclined block 87 and the sealing plate 86 to move. A No. 3 spring is set between the sealing plate 86 and the exhaust fan 82 to prevent a large amount of high-temperature air from leaking from the purification frame 81 when the moisture-proof plate 83 is replaced if the exhaust fan 82 is not turned off in time.
[0041] In this embodiment, when the movable rod 63 moves, it will drive the fixed rod 73 to move. When the fixed rod 73 moves, it will drive the transmission rod 74 to move. When the transmission rod 74 moves, it will push the free end of the elastic telescopic rod 71 to move up and down. The up and down movement of the free end of the elastic telescopic rod 71 will drive the distribution plate 72 to move up and down. The fertilizer inside the feed pipe 3 will first fall onto the distribution plate 72. The up and down movement of the distribution plate 72 will scatter the fertilizer. When the distribution plate 72 moves up and down, it will drive the swing plate 75 and the swing block 78 to swing up and down. When the swing plate 75 swings down, it will drive the arc block 76 to rotate down. When the arc block 76 rotates down, the fixed block 77 will push the arc block 76 to rotate up quickly, so that the arc block 76 will push the fertilizer on the swing plate 75 to be thrown out quickly, so that the fertilizer can be more dispersed into the interior of the filter cylinder 41.
[0042] When the exhaust fan 82 is turned on, it draws in humid air from the top of the drying frame 1 through the pipe and the adsorption plate 51. The humid air is filtered by the moisture-proof plate 83, and the dry air re-enters the interior of the drying frame 1. When the moisture-proof plate 83 needs to be replaced, push the baffle 84 upward to open the replacement port and remove the moisture-proof plate 83 from the replacement port. When the baffle 84 moves upward, it will drive the linkage rod 85 upward. When the linkage rod 85 moves upward, it will contact the inclined surface of the tilting block 87, causing the linkage rod 85 to push the tilting block 87 and the sealing plate 86 to move and seal the exhaust fan 82.
[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A powder removal and drying device for granular fertilizer, comprising a drying frame (1), characterized in that: It also includes dust suppression devices, material control devices, and dehumidification devices; Among them, a feeding frame (2) is fixedly installed on the surface of the drying frame (1), a feeding pipe (3) is fixedly installed at the bottom of the feeding frame (2), a filter cylinder (41) is rotatably installed inside the drying frame (1), a spiral shaft (44) is fixedly installed inside the filter cylinder (41), an arc plate (42) is slidably installed on the surface of the filter cylinder (41), a threaded rod (43) is rotatably installed on the surface of the arc plate (42), and the threaded rod (43) is threadedly connected to the drying frame (1). The dust suppression device includes an adsorption plate (51), a guide plate (52), a spiral plate (53), a slide bar (54), a contact bar (55), a friction plate (56), and a conductive block (57). The adsorption plate (51) is fixedly installed through the top of the drying frame (1). The guide plate (52) is fixedly installed on the bottom of the inner wall of the drying frame (1). The spiral plate (53) is fixedly installed on the outer wall surface of the filter cylinder (41). The slide bar (54) is slidably installed on the surface of the adsorption plate (51). The contact bar (55) is fixedly installed on the surface of the slide bar (54). The friction plate (56) and the conductive block (57) are both fixedly installed on the surface of the adsorption plate (51). A reset spring is provided between the slide bar (54) and the adsorption plate (51). The material control device includes an inclined plate (61), a bending block (62), a movable rod (63), a triangular block (64), a pusher frame (65), and a protrusion (66). The inclined plate (61) is rotatably installed inside the feed frame (2). A second torsion spring is provided between the inclined plate (61) and the feed frame (2). The bending block (62) is fixedly installed at the bottom of the inclined plate (61). The movable rod (63) slides through the feed pipe (3). A first spring is provided between the movable rod (63) and the feed pipe (3). The triangular block (64) is fixedly installed on the surface of the movable rod (63). The pusher frame (65) is slidably installed inside the feed pipe (3). The protrusion (66) is fixedly installed on the surface of the spiral shaft (44). The feed pipe (3) is provided with a material distribution device, which includes an elastic telescopic rod (71), a material distribution plate (72), a fixed rod (73), and a transmission rod (74). The elastic telescopic rod (71) is fixedly installed at the bottom of the feed pipe (3), the material distribution plate (72) is fixedly installed at the free end of the elastic telescopic rod (71), the fixed rod (73) is fixedly installed on the surface of the movable rod (63), the top of the transmission rod (74) is hinged to the fixed rod (73), and the bottom of the transmission rod (74) is hinged to the free end of the elastic telescopic rod (71). A swing plate (75) is rotatably mounted on the surface of the material distribution plate (72). A third torsion spring is provided between the swing plate (75) and the material distribution plate (72). A through hole is opened on the surface of the swing plate (75). An arc-shaped block (76) is rotatably mounted inside the through hole. A fourth torsion spring is provided between the arc-shaped block (76) and the through hole. A fixing block (77) is fixedly mounted on the top of the material distribution plate (72). A swing block (78) is rotatably mounted on the surface of the swing plate (75).
2. The powder removal and drying equipment for granular fertilizer according to claim 1, characterized in that: A convex plate (511) is fixedly installed on the inner wall of the guide plate (52), a collection frame (58) is fixedly installed at the bottom of the drying frame (1), an extrusion plate (59) is rotatably installed on the top of the collection frame (58), a torsion spring is provided between the extrusion plate (59) and the collection frame (58), and an installation plate (510) is fixedly installed on the surface of the slide rod (54).
3. The powder removal and drying equipment for granular fertilizer according to claim 2, characterized in that: A push rod (67) is hinged to the surface of the movable rod (63), a limiting block (68) is fixedly installed on the surface of the movable rod (63), and a second torsion spring is provided between the movable rod (63) and the push rod (67).
4. The powder removal and drying equipment for granular fertilizer according to claim 3, characterized in that: The dehumidification device includes a purification frame (81), an exhaust fan (82), a moisture-proof plate (83), and a baffle (84). The purification frame (81) is fixedly installed on the top of the drying frame (1). The exhaust fan (82) is fixedly installed inside the purification frame (81). The exhaust fan (82) is connected to the adsorption plate (51) through a pipe. The moisture-proof plate (83) is set inside the purification frame (81). The baffle (84) is slidably installed on the surface of the purification frame (81). A second spring is provided between the baffle (84) and the purification frame (81). A replacement port is opened on the surface of the purification frame (81).
5. The powder removal and drying equipment for granular fertilizer according to claim 4, characterized in that: A linkage rod (85) is fixedly installed on the top of the baffle (84), a sealing plate (86) is slidably installed on the bottom of the exhaust fan (82), an inclined block (87) is fixedly installed on the bottom of the sealing plate (86), an air inlet is opened on the surface of the sealing plate (86), and a No. 3 spring is provided between the sealing plate (86) and the exhaust fan (82).