A dryer for preparing anhydrous ferric phosphate and a drying method thereof

Abstract

The present invention relates to the technical field of anhydrous ferric phosphate preparation, and discloses a dryer for preparing anhydrous ferric phosphate and a drying method thereof, comprising a dryer body, a filtering mechanism installed inside the dryer body, and a heating mechanism for uniformly drying the anhydrous ferric phosphate, wherein the dryer body comprises a casing. The dryer for preparing anhydrous ferric phosphate and the drying method thereof, according to the present invention, allows anhydrous ferric phosphate to fall into the interior of a heating cylinder through a discharge seat, at which time a conical head seat guides it until it falls onto the surface of a spiral guide plate, and then the anhydrous ferric phosphate slides downward along the shape of the spiral guide plate and is uniformly dried under the operation of a heating tube. This solves the problem that existing dryers, when in use, often cannot dry the ferric phosphate uniformly due to its blocky shape, and also have poor drying effect due to the poor fluidity of the ferric phosphate, thereby reducing the efficiency of ferric phosphate preparation and being unfavorable for large-scale industrial production.

Description

Technical Field

[0001] The invention relates to the technical field of anhydrous ferric phosphate preparation, in particular to a dryer for preparing anhydrous ferric phosphate and a drying method thereof. Background Art

[0002] Ferric phosphate, also known as ferric phosphate and ferric orthophosphate, has the molecular formula FePO4. It is a white or off-white monoclinic crystal powder. It is a salt formed by the reaction of iron salt solution and sodium phosphate. The iron in it is trivalent. Its main use is to manufacture iron phosphate positive electrode materials, catalysts and ceramics.

[0003] During the preparation process, ferric phosphate is often filtered through a filter press into blocks and then dried. However, existing dryers are often unable to dry the phosphate evenly due to the blocks. At the same time, the poor fluidity of ferric phosphate also leads to poor drying effect, which reduces the efficiency of ferric phosphate preparation and is not conducive to large-scale industrial production.

[0004] In order to solve the above problems, we have made improvements and proposed a dryer for preparing anhydrous ferric phosphate and a drying method thereof. Summary of the Invention

[0005] The object of the present invention is to provide a dryer for preparing anhydrous ferric phosphate and a drying method thereof, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A dryer for preparing anhydrous ferric phosphate, comprising a dryer body, a filtering mechanism installed inside the dryer body, and a heating mechanism for uniformly drying the anhydrous ferric phosphate. The dryer body comprises a casing, the top of the casing inner cavity is connected to an inlet hopper, the bottom of the casing inner cavity is connected to an outlet hopper, the bottom of the casing is fixedly connected to a support washer, and the four corners of the bottom of the support washer are fixedly connected to support legs;

[0008] The filtering mechanism includes a filter seat, which is fixed to the inside of the housing. The inner cavity of the filter seat is movably connected to a filter plate, the top of the filter plate is fixedly connected to a baffle, the inner cavity of the filter plate is provided with a filter hole, the center of the bottom of the filter plate is fixedly connected to a vibration motor, and the bottom of the filter seat is connected to a discharge seat;

[0009] The heating mechanism includes a heating cylinder, which is installed at the bottom of the discharge seat, a guide ring is fixedly connected to the top of the heating cylinder, a circulation groove is opened in the inner cavity of the heating cylinder, the heating cylinder and the bottom of the discharge seat are connected, a heating tube is installed on the surface of the heating cylinder, a pillar is installed in the inner cavity of the heating cylinder, a rotating cylinder is movably connected to the top of the pillar surface, a spiral guide disk is fixedly connected to the surface of the rotating cylinder, and the edge of the spiral guide disk is movably connected to the inner wall of the circulation groove.

[0010] As a further solution of the present invention: connecting holes are opened on both sides of the discharge seat and the inner cavity of the heating cylinder, and a threaded rod is provided through the inner cavity of the connecting hole. The top and bottom of the surface of the threaded rod are threadedly connected with a threaded sleeve, and the inner side of the threaded sleeve is in close contact with the surface of the discharge seat and the heating cylinder respectively.

[0011] As a further solution of the present invention: the top of the left side of the heating cylinder is fixedly connected to an upper connecting block, the bottom of the left side of the heating cylinder is fixedly connected to a lower connecting block, one end of the heating tube is fixedly connected to one side of the upper connecting block, and the other end of the heating tube is fixedly connected to one side of the lower connecting block.

[0012] As a further solution of the present invention: the bottoms of both sides of the pillars are fixedly connected with support plates, the outer sides of the support plates are fixed to the inside of the circulation groove, the bottoms of the pillar surfaces are fixedly connected with limit plates, the tops of the limit plates are movably connected to the bottoms of the rotating cylinders, and the tops of the rotating cylinders are fixedly connected with cone head seats.

[0013] As a further solution of the present invention: the four corners of the inner cavity of the filter plate are movably connected with guide slides, the top of the guide slide is fixedly connected with a baffle, the bottom of the baffle is fixedly connected to the top of the filter seat, the bottom of the guide slide is fixedly connected to the inner wall of the filter seat, and the top of the guide slide surface is sleeved with a return spring, the top of the return spring is fixedly connected to the bottom of the baffle, and the bottom of the return spring is fixedly connected to the top of the filter plate.

[0014] As a further solution of the present invention: a top seat is fixedly connected to the center of the top of the filter plate, and the top seat is arranged in a conical structure. There are multiple filter holes, which are distributed in a surrounding manner inside the filter plate.

[0015] As a further solution of the present invention: crushing mechanisms are installed on the top and bottom of the inner cavity of the casing, and the crushing mechanism includes a servo motor, a fixed bracket is fixedly connected to the surface of the servo motor, the left side of the fixed bracket is fixedly connected to the right side of the casing, an active rod is fixedly connected to the output end of the servo motor, a driving wheel is fixedly connected to the right side of the surface of the active rod, a transmission belt is provided on the surface of the driving wheel, a driven wheel is provided on the top of the inner cavity of the transmission belt, and the driving wheel and the driven wheel are connected by a transmission belt.

[0016] As a further solution of the present invention: a driven rod is fixedly connected to the inside of the driven wheel, a connecting sleeve is fixedly connected to the surfaces of the active rod and the driven rod, a breaking rod is fixedly connected to the top and bottom of the connecting sleeve, and the breaking rod is respectively located at the top and bottom of the inner cavity of the casing.

[0017] As a further solution of the present invention: the front side of the casing is fixedly connected to a side seat, the inner cavity of the side seat is movably connected to a polished rod, the top and bottom of the surface of the polished rod are fixedly connected to positioning rings, the right side of the polished rod is fixedly connected to a sealing door, the sealing door fits tightly into the interior of the casing, and the front side of the sealing door is fixedly connected to a lifting handle.

[0018] A drying method for preparing anhydrous ferric phosphate, the drying method further comprising the following steps:

[0019] S1. First, pull the handle to rotate the sealing door, which in turn drives the side seat to rotate on the surface of the polished rod, opening the sealing door. Then, extend the top of the heating cylinder into the inside of the discharge seat, and fit the edge of the heating cylinder to the bottom of the discharge seat. Then, fix them with the threaded sleeve and threaded rod.

[0020] S2. The sieved ferric phosphate then passes through the discharge seat and falls into the interior of the heating cylinder. At this time, the cone head seat guides it until it falls onto the surface of the spiral guide plate. Then, the anhydrous ferric phosphate slides downward along the shape of the spiral guide plate and is evenly dried under the operation of the heating tube.

[0021] S3. The dried anhydrous ferric phosphate is crushed again by the lower active rod, connecting sleeve and crushing rod.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention allows anhydrous ferric phosphate to fall into the interior of the heating cylinder through the discharge seat. At this time, the cone head seat guides it until it falls on the surface of the spiral guide plate. Then, the anhydrous ferric phosphate slides downward along the shape of the spiral guide plate and is evenly dried under the operation of the heating tube. This can solve the problem that the existing dryer cannot dry the anhydrous ferric phosphate evenly due to its block shape during use, and the drying effect is low due to the poor fluidity of the anhydrous ferric phosphate, which delays the efficiency of the ferric phosphate preparation and is inconvenient for people to use.

[0024] 2. The present invention supports the top of the guide slide column through the setting of the baffle, further improving the stability of the guide slide column when it is connected. At the same time, the setting of the return spring can absorb the force generated by the filter plate when it shakes, further enabling it to shake, thereby increasing the shaking frequency of the filter plate and achieving a uniform screening effect. The setting of the upper connecting block and the lower connecting block has the effect of connecting and fixing the position of the heating tube, thereby improving the stability of the heating tube during operation and preventing it from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a dryer for preparing anhydrous ferric phosphate and a drying method thereof;

[0026] Figure 2 A cross-sectional view of a housing structure of a dryer for preparing anhydrous ferric phosphate and a drying method thereof;

[0027] Figure 3 This is a schematic diagram of the connection of a sealing door structure in a dryer for preparing anhydrous ferric phosphate and a drying method thereof;

[0028] Figure 4 This is a schematic diagram of the connection structure of the active rod and the driven rod in a dryer for preparing anhydrous ferric phosphate and a drying method thereof;

[0029] Figure 5 This is a schematic diagram of the connection between the filter seat and the heating cylinder structure in a dryer for preparing anhydrous ferric phosphate and a drying method thereof;

[0030] Figure 6 A dryer for preparing anhydrous ferric phosphate and a drying method thereof Figure 5 A local enlarged schematic diagram of point A;

[0031] Figure 7 This is a schematic diagram of the disassembly and connection of a heating cylinder in a dryer for preparing anhydrous ferric phosphate and a drying method thereof.

[0032] In the figure: 1. Dryer body; 101. Casing; 102. Support legs; 103. Support gasket; 104. Sealing door; 105. Feed hopper; 106. Discharge hopper; 107. Side seat; 108. Polished rod; 109. Positioning ring; 110. Lifting handle; 2. Crushing mechanism; 201. Servo motor; 202. Fixed bracket; 203. Driving wheel; 204. Driving rod; 205. Connecting sleeve; 206. Crushing rod; 207. Driven rod; 208. Driven wheel; 209. Drive belt; 3. Heating mechanism; 301. Heating cylinder; 302. Heating Tube; 303, upper connecting block; 304, circulation slot; 305, lower connecting block; 306, pillar; 307, support plate; 308, limit plate; 309, spiral guide plate; 310, rotating cylinder; 311, cone head seat; 312, threaded sleeve; 313, threaded rod; 314, guide ring; 4, filtering mechanism; 401, filter seat; 402, baffle; 403, vibration motor; 404, top seat; 405, filter plate; 406, filter hole; 407, discharge seat; 408, baffle; 409, return spring; 410, guide slide; 411, connecting hole. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1 、 2 , 5, 6 and 7, a dryer for preparing anhydrous ferric phosphate, comprising a dryer body 1, a filtering mechanism 4 installed inside the dryer body 1, and a heating mechanism 3 for uniformly drying the anhydrous ferric phosphate;

[0036] The filtering mechanism 4 includes a filter seat 401, which is fixed to the inside of the casing 101. The inner cavity of the filter seat 401 is movably connected to a filter plate 405. The top of the filter plate 405 is fixedly connected to a baffle 402. The inner cavity of the filter plate 405 is provided with a filter hole 406. The center of the bottom of the filter plate 405 is fixedly connected to a vibration motor 403. The bottom of the filter seat 401 is connected to a discharge seat 407. The setting of the vibration motor 403 can make the filter plate 405 vibrate and screen, thereby increasing the vibration frequency of the filter plate 405. At the same time, the setting of the discharge seat 407 has a drainage effect on the screened material.

[0037] The heating mechanism 3 includes a heating cylinder 301, which is installed at the bottom of the discharge seat 407, and a guide ring 314 is fixedly connected to the top of the heating cylinder 301. A circulation groove 304 is opened in the inner cavity of the heating cylinder 301, and the bottom of the heating cylinder 301 and the discharge seat 407 are connected. A heating tube 302 is installed on the surface of the heating cylinder 301, and a pillar 306 is installed in the inner cavity of the heating cylinder 301. The top of the surface of the pillar 306 is movably connected with a rotating cylinder 310, and the surface of the rotating cylinder 310 is fixedly connected with a spiral guide disk 309. The edge of the spiral guide disk 309 is movably connected to the inner wall of the circulation groove 304. The setting of the heating tube 302 achieves the effect of heating and drying. At the same time, the setting of the rotating cylinder 310 supports the spiral guide disk 309. Subsequently, the setting of the spiral guide disk 309 is a spiral structure, which can increase the drying path and achieve a uniform drying effect.

[0038] Connecting holes 411 are provided on both sides of the inner cavity of the discharge seat 407 and the heating cylinder 301, and a threaded rod 313 is provided through the inner cavity of the connecting hole 411. The top and bottom of the surface of the threaded rod 313 are threadedly connected with a threaded sleeve 312, and the inner side of the threaded sleeve 312 is in close contact with the surface of the discharge seat 407 and the heating cylinder 301 respectively. Through the above technical solution, through the setting of the connecting hole 411, the threaded rod 313 can smoothly pass through the discharge seat 407 and the heating cylinder 301, which is convenient for connecting the two. Subsequently, through the setting of the threaded sleeve 312, it can be threadedly connected with the threaded rod 313 to stably connect and fix the heating cylinder 301 and the discharge seat 407.

[0039] The top of the left side of the heating cylinder 301 is fixedly connected to an upper connecting block 303, and the bottom of the left side of the heating cylinder 301 is fixedly connected to a lower connecting block 305. One end of the heating tube 302 is fixedly connected to one side of the upper connecting block 303, and the other end of the heating tube 302 is fixedly connected to one side of the lower connecting block 305. Through the above technical solution, through the arrangement of the upper connecting block 303 and the lower connecting block 305, the position of the heating tube 302 is connected and fixed, thereby improving the stability of the heating tube 302 during operation and preventing it from falling.

[0040] The bottom of both sides of the pillar 306 is fixedly connected with a support plate 307, the outer side of the support plate 307 is fixed to the inside of the circulation groove 304, the bottom of the surface of the pillar 306 is fixedly connected with a limit plate 308, the top of the limit plate 308 is movably connected to the bottom of the rotating cylinder 310, and the top of the rotating cylinder 310 is fixedly connected with a cone head seat 311. Through the above technical solution, the position of the pillar 306 is supported by the setting of the support plate 307, which further improves the stability of the pillar 306 working inside the heating cylinder 301. At the same time, the setting of the limit plate 308 limits the bottom of the rotating cylinder 310 to prevent the rotating cylinder 310 from falling off when rotating.

[0041] The four corners of the inner cavity of the filter plate 405 are movably connected with a guide slide 410, and the top of the guide slide 410 is fixedly connected with a baffle 408, and the bottom of the baffle 408 is fixedly connected to the top of the filter seat 401, and the bottom of the guide slide 410 is fixedly connected to the inner wall of the filter seat 401. A return spring 409 is sleeved on the top of the surface of the guide slide 410, and the top of the return spring 409 is fixedly connected to the bottom of the baffle 408, and the bottom of the return spring 409 is fixedly connected to the top of the filter plate 405. Through the above technical solution, the top of the guide slide 410 is supported by the setting of the baffle 408, which further improves the stability of the guide slide 410 when connected. At the same time, the setting of the return spring 409 can absorb the force generated by the filter plate 405 when it shakes, further enabling it to shake, thereby increasing the shaking frequency of the filter plate 405 and achieving a uniform screening effect.

[0042] A top seat 404 is fixedly connected to the center of the top of the filter plate 405. The top seat 404 is arranged in a conical structure. There are multiple filter holes 406, which are distributed in a surrounding manner inside the filter plate 405. Through the above technical solution, through the setting of the top seat 404, the top of the top seat 404 is conical, so that the material can be evenly distributed on the top of the filter plate 405. At the same time, the number of filter holes 406 is set to multiple, which avoids excessive accumulation of material on the top of the filter plate 405.

[0043] The specific implementation of the present invention is as follows: first, the top end of the heating cylinder 301 is inserted into the interior of the discharge seat 407, and the edge of the heating cylinder 301 is attached to the bottom of the discharge seat 407, and the heating cylinder 301 drives the guide ring 314 to extend into the interior thereof, and then it is fixed by the threaded sleeve 312 and the threaded rod 313, and then the filter plate 405 is shaken by the operation of the vibration motor 403, and the filter plate 405 slides on the surface of the guide slide 410, and the sliding of the filter plate 405 causes the return spring 409 to absorb the force generated by it The filter plate 405 is shaken to make the filter hole 406 screen the iron phosphate, and the screened iron phosphate passes through the discharge seat 407 and falls into the interior of the heating cylinder 301. At this time, the cone head seat 311 guides it until it falls on the surface of the spiral guide plate 309. Then, the anhydrous iron phosphate will slide downward along the shape of the spiral guide plate 309. If the spiral guide plate 309 is subjected to force, the rotating cylinder 310 will rotate on the surface of the support 306, and the limit plate 308 will support its position. Finally, it will be evenly dried under the operation of the heating tube 302.

[0044] Example 2

[0045] See also Figure 1 、 2 , 3 and 4, a dryer for preparing anhydrous ferric phosphate, the dryer body 1 includes a casing 101, the top of the inner cavity of the casing 101 is connected to a feed hopper 105, the bottom of the inner cavity of the casing 101 is connected to a discharge hopper 106, the bottom of the casing 101 is fixedly connected to a support washer 103, and the four corners of the bottom of the support washer 103 are fixedly connected to support legs 102. Through the above technical solution, the setting of the feed hopper 105 is utilized, and the top of the feed hopper 105 is opened, so that it can be stably fed. At the same time, the setting of the support washer 103 improves the stability of the connection between the support legs 102 and the casing 101. At the same time, the setting of the support legs 102 supports the position of the casing 101.

[0046] Crushing mechanisms 2 are installed at the top and bottom of the inner cavity of the casing 101. The crushing mechanism 2 includes a servo motor 201. A fixed bracket 202 is fixedly connected to the surface of the servo motor 201. The left side of the fixed bracket 202 is fixedly connected to the right side of the casing 101. The output end of the servo motor 201 is fixedly connected to an active rod 204. The right side of the surface of the active rod 204 is fixedly connected to a driving wheel 203. The surface of the driving wheel 203 is sleeved with a transmission belt 209. The top of the inner cavity of the transmission belt 209 is sleeved with a driven wheel 208. The driving wheel 203 and the driven wheel 208 are connected by the transmission belt 209. Through the setting of the transmission belt 209, the driving wheel 203 and the driven wheel 208 can be stably transmitted, thereby driving the upper and lower parts of the active rod 204 and the driven rod 207 to rotate, thereby achieving the effect of upper and lower crushing.

[0047] The interior of the driven wheel 208 is fixedly connected to a driven rod 207, and the surfaces of the active rod 204 and the driven rod 207 are fixedly connected to a connecting sleeve 205. The top and bottom of the connecting sleeve 205 are fixedly connected to a breaking rod 206, and the breaking rod 206 is respectively located at the top and bottom of the inner cavity of the casing 101. Through the above technical solution, through the setting of the connecting sleeve 205, the breaking rod 206 can be firmly connected to the active rod 204 and the driven rod 207, so that it can rotate stably and prevent it from breaking during the rotation process.

[0048] The front side of the casing 101 is fixedly connected to a side seat 107, and the inner cavity of the side seat 107 is movably connected to a polished rod 108. The top and bottom of the surface of the polished rod 108 are fixedly connected to a positioning ring 109, and the right side of the polished rod 108 is fixedly connected to a sealing door 104, which fits tightly inside the casing 101. The front side of the sealing door 104 is fixedly connected to a pulling handle 110. Through the above technical solution, the casing 101 is opened and closed by setting the sealing door 104. By setting the pulling handle 110, the contact area between the hand and the sealing door 104 is increased, which makes it convenient to pull and close the sealing door 104. By setting the positioning ring 109, the position of the side seat 107 is limited to prevent the side seat 107 from falling off the surface of the polished rod 108 when rotating.

[0049] The specific implementation of the present invention is as follows: first, the sealing door 104 is driven to rotate by pulling the handle 110, and the sealing door 104 drives the side seat 107 to rotate on the surface of the polished rod 108, so that the sealing door 104 is opened, and then the heating mechanism 3 is installed at the bottom of the filtering mechanism 4, and then the active rod 204 is driven to rotate by the servo motor 201, and the active rod 204 is driven to rotate by the rotation of the active wheel 203, and the transmission belt 209 drives the driven wheel 208 to rotate under the rotation of the active wheel 203, and the driven rod 207 is driven to rotate by the rotation of the driven wheel 208, and the connecting sleeve 205 is driven to rotate under the rotation of the driven rod 207 and the active rod 204, and the crushing rod 206 is driven to rotate by the rotation of the connecting sleeve 205, and the upper crushing rod 206 crushes the block iron phosphate, and the bottom crushing rod 206 crushes the dried iron phosphate again.

[0050] Example 3

[0051] See also Figure 1-7 , a dryer for preparing anhydrous ferric phosphate and a drying method thereof:

[0052] The specific implementation of the present invention is as follows: first, the sealing door 104 is driven to rotate by pulling the handle 110, and the sealing door 104 drives the side seat 107 to rotate on the surface of the polished rod 108, so that the sealing door 104 is opened, and then the heating mechanism 3 is installed on the bottom of the filtering mechanism 4, and the top of the heating cylinder 301 is extended into the interior of the discharge seat 407, and the edge of the heating cylinder 301 is attached to the bottom of the discharge seat 407, and the heating cylinder 301 drives the guide ring 314 to extend into the interior thereof, and then fixes it through the threaded sleeve 312 and the threaded rod 313, and then drives the active rod 204 to rotate by the servo motor 201, and the rotation of the active rod 204 drives the driving wheel 203 to rotate, and the rotation of the driving wheel 203 drives the transmission belt 209 to drive the driven wheel 208 to rotate, and the rotation of the driven wheel 208 drives the driven rod 207 to rotate, and the rotation of the driven rod 207 and the active rod 204 drives the connecting sleeve 205 to rotate, and the connecting sleeve 205 is driven by the connecting sleeve 205 The rotation of the filter plate 405 drives the crushing rod 206 to rotate, and the upper crushing rod 206 crushes the block iron phosphate, while the bottom crushing rod 206 crushes the dried iron phosphate again. Then, the filter plate 405 is shaken by the operation of the vibration motor 403, and the filter plate 405 slides on the surface of the guide slide 410. The sliding of the filter plate 405 causes the return spring 409 to absorb the force generated by it. The shaking of the filter plate 405 causes the filter hole 406 to screen the iron phosphate, and the screened iron phosphate passes through the discharge seat 407 and falls into the interior of the heating cylinder 301. At this time, the cone head seat 311 guides it until it falls on the surface of the spiral guide plate 309, and then the anhydrous iron phosphate slides downward along the shape of the spiral guide plate 309. If the spiral guide plate 309 is subjected to force, the rotating cylinder 310 will rotate on the surface of the support 306, and the limit plate 308 supports its position. Finally, it is evenly dried under the operation of the heating tube 302.

[0053] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and novel inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A dryer for preparing anhydrous ferric phosphate, comprising a dryer body (1), a filtering mechanism (4) installed inside the dryer body (1), and a heating mechanism (3) for uniformly drying the anhydrous ferric phosphate, characterized in that: The dryer body (1) comprises a housing (101); a crushing mechanism (2) is installed at the top and bottom of the inner cavity of the housing (101); the crushing mechanism (2) comprises a servo motor (201); a fixed bracket (202) is fixedly connected to the surface of the servo motor (201); the left side of the fixed bracket (202) is fixedly connected to the right side of the housing (101); an active rod (204) is fixedly connected to the output end of the servo motor (201); a driving wheel (203) is fixedly connected to the right side of the surface of the active rod (204); and the surface of the driving wheel (203) is sleeved. A transmission belt (209) is provided, and a driven wheel (208) is provided on the top of the inner cavity of the transmission belt (209), and the driving wheel (203) and the driven wheel (208) are connected to each other by the transmission belt (209); a driven rod (207) is fixedly connected to the inside of the driven wheel (208), and the surfaces of the driving rod (204) and the driven rod (207) are fixedly connected to the connection sleeve (205), and the top and bottom of the connection sleeve (205) are fixedly connected to the breaking rod (206), and the breaking rod (206) is respectively located at the top and bottom of the inner cavity of the casing (101); The filtering mechanism (4) comprises a filter seat (401), the filter seat (401) being fixed inside the housing (101), the inner cavity of the filter seat (401) being movably connected to a filter plate (405), the top of the filter plate (405) being fixedly connected to a shield (402), the inner cavity of the filter plate (405) being provided with a filter hole (406), the center of the bottom of the filter plate (405) being fixedly connected to a vibration motor (403), and the bottom of the filter seat (401) being connected to a discharge seat (407); The four corners of the inner cavity of the filter plate (405) are movably connected to guide slides (410), the top of the guide slide (410) is fixedly connected to a baffle (408), the bottom of the baffle (408) is fixedly connected to the top of the filter seat (401), the bottom of the guide slide (410) is fixedly connected to the inner wall of the filter seat (401), the top of the surface of the guide slide (410) is sleeved with a return spring (409), the top of the return spring (409) is fixedly connected to the bottom of the baffle (408), and the bottom of the return spring (409) is fixedly connected to the top of the filter plate (405); A top seat (404) is fixedly connected to the center of the top of the filter plate (405), and the top seat (404) is arranged in a conical structure. The number of the filter holes (406) is plural and distributed around the inside of the filter plate (405); The heating mechanism (3) includes a heating cylinder (301), the heating cylinder (301) is installed at the bottom of the discharge seat (407), the top of the heating cylinder (301) is fixedly connected to a guide ring (314), the inner cavity of the heating cylinder (301) is provided with a circulation groove (304), the heating cylinder (301) and the bottom of the discharge seat (407) are connected, a heating tube (302) is installed on the surface of the heating cylinder (301), a pillar (306) is installed in the inner cavity of the heating cylinder (301), the top of the surface of the pillar (306) is movably connected to a rotating cylinder (310), the surface of the rotating cylinder (310) is fixedly connected to a spiral guide disk (309), and the edge of the spiral guide disk (309) is movably connected to the inner wall of the circulation groove (304).

2. A dryer for preparing anhydrous ferric phosphate according to claim 1, characterized in that: The top of the inner cavity of the housing (101) is connected to a material inlet hopper (105), the bottom of the inner cavity of the housing (101) is connected to a material outlet hopper (106), the bottom of the housing (101) is fixedly connected to a support washer (103), and the four corners of the bottom of the support washer (103) are fixedly connected to support legs (102); Connecting holes (411) are provided on both sides of the inner cavity of the discharge seat (407) and the heating cylinder (301), and a threaded rod (313) is provided through the inner cavity of the connecting hole (411). The top and bottom of the surface of the threaded rod (313) are threadedly connected to threaded sleeves (312), and the inner sides of the threaded sleeves (312) are in close contact with the surfaces of the discharge seat (407) and the heating cylinder (301), respectively.

3. A dryer for preparing anhydrous ferric phosphate according to claim 2, characterized in that: The top of the left side of the heating cylinder (301) is fixedly connected to an upper connecting block (303), the bottom of the left side of the heating cylinder (301) is fixedly connected to a lower connecting block (305), one end of the heating tube (302) is fixedly connected to one side of the upper connecting block (303), and the other end of the heating tube (302) is fixedly connected to one side of the lower connecting block (305).

4. A dryer for preparing anhydrous ferric phosphate according to claim 3, characterized in that: The bottoms of both sides of the pillar (306) are fixedly connected to support plates (307), the outer sides of the support plates (307) are fixed to the inside of the circulation groove (304), the bottom of the surface of the pillar (306) is fixedly connected to a limit plate (308), the top of the limit plate (308) is movably connected to the bottom of the rotating cylinder (310), and the top of the rotating cylinder (310) is fixedly connected to a cone head seat (311).

5. A dryer for preparing anhydrous ferric phosphate according to claim 4, characterized in that: The front side of the housing (101) is fixedly connected to a side seat (107), the inner cavity of the side seat (107) is movably connected to a light rod (108), the top and bottom of the surface of the light rod (108) are fixedly connected to a positioning ring (109), the right side of the light rod (108) is fixedly connected to a sealing door (104), the sealing door (104) is tightly fitted inside the housing (101), and the front side of the sealing door (104) is fixedly connected to a lifting handle (110).

6. A drying method for preparing anhydrous ferric phosphate, characterized in that: Applied to the dryer for preparing anhydrous ferric phosphate as claimed in claim 5, the drying method comprises the following steps: S1. First, the sealing door (104) is rotated by pulling the handle (110) to open the sealing door (104). Then, the top end of the heating cylinder (301) is inserted into the interior of the discharge seat (407), and the edge of the heating cylinder (301) is attached to the bottom of the discharge seat (407). Then, the heating cylinder (301) is fixed by the threaded sleeve (312) and the threaded rod (313); S2. The sieved iron phosphate then passes through the discharge seat (407) and falls into the interior of the heating cylinder (301). At this time, the cone head seat (311) guides it until it falls onto the surface of the spiral guide plate (309). As the spiral guide plate (309) slides downward, it is evenly dried under the operation of the heating tube (302). S3. The dried anhydrous ferric phosphate is crushed again by passing through the lower active rod (204), the connecting sleeve (205) and the crushing rod (206).

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