Drying equipment for preparing monoammonium phosphate

Abstract

The invention relates to the technical field of monoammonium phosphate drying, in particular to drying equipment for monoammonium phosphate preparation. Comprising a base, the base is provided with an exhaust pipe, the exhaust pipe is provided with a plurality of telescopic joints, all the telescopic joints are jointly and fixedly connected with a shell, and the shell is provided with a vibration motor; the sieve plate is mounted in the shell; and the shovel plate is arranged in the shell. The upper-layer material and the lower-layer material are overturned through the shovel plate, so that the positions of the material far away from a heat source and the material close to the heat source are exchanged, all the materials are evenly heated, and when the clotted material is vibrated but cannot be overturned due to the weight of the clotted material, the shovel plate is used for overturning the clotted material, so that the clotted material rapidly moves before being dried; and the generation amount of agglomerates after the materials are dried is reduced, and the situation that the upper side faces of the agglomerated materials are wet and the lower side faces of the agglomerated materials are excessively dried due to the fact that the agglomerated materials cannot be turned over, and then the material drying effect is affected is avoided.

Description

Technical Field

[0001] This invention relates to the field of monoammonium phosphate drying technology, and more particularly to a drying device for the preparation of monoammonium phosphate. Background Technology

[0002] Monoammonium phosphate (MAP) is an important agricultural fertilizer and industrial raw material, widely used in agricultural production for soil improvement and crop nutrient supplementation. Because MAP contains a certain amount of moisture during its preparation, it needs to be dried. Commonly used MAP drying equipment includes vibrating fluidized bed dryers. These dryers use a heat source located at the bottom to dry the MAP inside, and the vibration causes the MAP to move in a jumping motion. Theoretically, the MAP will automatically tumble during this jumping process, ensuring uniform heating. However, existing MAP contains moisture and is prone to clumping. Once clumped... Drying clumps of material will result in the formation of dry lumps, which will affect the quality of the dried material. Furthermore, the clumps of monoammonium phosphate are difficult to turn over by vibration. As a result, a large number of clumps of monoammonium phosphate will spread in the vibrating fluidized bed dryer. This leads to multiple layers of monoammonium phosphate in the vibrating fluidized bed dryer from top to bottom. The upper layer of monoammonium phosphate is far away from the heat source, while the lower layer is close to the heat source. This not only easily leads to the phenomenon that the lower layer of material is over-dried while the upper layer still contains moisture, affecting the quality of the dried monoammonium phosphate, but also makes the drying time of the thicker layer of monoammonium phosphate longer, thus increasing the cost of the equipment. Summary of the Invention

[0003] In order to overcome the shortcomings mentioned in the background above, the present invention provides a drying device for the preparation of monoammonium phosphate.

[0004] The technical solution is as follows: A drying device for the preparation of monoammonium phosphate, comprising: A base, with an exhaust pipe on top of the base, and several spaced expansion joints installed on the exhaust pipe. All the expansion joints are fixedly connected to a housing. A first elastic element is installed between the housing and the base. A feed pipe and a discharge pipe are installed on both sides of the housing, and a vibration motor is installed on the housing. A sieve plate is installed inside the housing, and the sieve plate gradually slopes downward from the side near the feed pipe to the side near the discharge pipe. A shovel plate is disposed inside the housing and located above the screen plate. The shovel plate is used to scoop up materials and flip them. A power component is disposed inside the housing to drive the shovel plate to rotate and move.

[0005] Preferably, the power assembly includes: The first hydraulic telescopic rod is fixedly connected to the outer shell, and the telescopic end of the first hydraulic telescopic rod is fixedly connected to the exhaust pipe through a connector; The second hydraulic telescopic rod is fixedly connected to the outer shell. The second hydraulic telescopic rod is connected to the first hydraulic telescopic rod through the first conduit. A sealing push plate is fixedly connected to the telescopic end of the second hydraulic telescopic rod. The sealing push plate is slidably connected to the outer shell. A hollow rotating shaft is rotatably connected to the housing. The hollow rotating shaft is fixedly connected to and communicates with a liquid bladder. Before the liquid bladder expands, the liquid bladder is slidably connected to the shovel plate. After the liquid bladder expands, the liquid bladder is pressed against the shovel plate. The hollow rotating shaft is rotatably connected to a housing that communicates with it. The housing is fixedly connected to the housing. The housing is communicated with the first hydraulic telescopic rod through a second conduit. The third hydraulic telescopic rod is fixed to the outer shell. The third hydraulic telescopic rod is connected to the second conduit of the shell through a branch conduit. The telescopic end of the third hydraulic telescopic rod is connected to the hollow rotating shaft through a gear and rack transmission.

[0006] Preferably, the first conduit of the second hydraulic telescopic rod, the second conduit of the housing, and the branch conduit of the third hydraulic telescopic rod are all equipped with resistance elements. The resistance elements are used to apply resistance to the flow of liquid. The resistance applied to the liquid by the resistance element of the second conduit on the housing is less than the resistance applied to the liquid by the other two resistance elements, so that the liquid in the first hydraulic telescopic rod flows preferentially into the housing.

[0007] As a preferred option, it also includes: An electric push rod is fixedly connected to the housing near the feed pipe, and a connecting rod is fixedly connected to the telescopic end of the electric push rod; The scraper comprises several scrapers arranged in a linear array, all of which are fixed to the connecting rod.

[0008] Preferably, the sieve plate is fixedly connected to a plurality of linearly distributed fixed plates, and each fixed plate is fixedly connected to a flexible plate. The flexible plate is in contact with the sieve plate and is located between two adjacent scrapers. The scrapers are used to squeeze the adjacent flexible plates away from the electric push rod.

[0009] Preferably, the scraper has an n-shaped cross-section, with the lower part of the scraper away from the flexible plate in contact with the surface of the sieve plate, and the other part of the scraper near the flexible plate having a gap with the sieve plate.

[0010] As a preferred option, it also includes: A sliding rod is slidably connected to the outer casing, and a second elastic element is fixedly connected between the sliding rod and the outer casing; A rotating plate is rotatably connected to the sliding rod and is located above the shovel plate. The rotating plate is used to squeeze the shovel plate.

[0011] Preferably, a first torsion spring is fixedly connected between the rotating plate and the sliding rod, and the elastic force of the first torsion spring on the rotating plate is less than the elastic force of the second elastic element on the sliding rod.

[0012] As a preferred option, it also includes: The shredder is slidably connected to the rotating plate, and both the upper and lower sides of the shovel plate are provided with rough surfaces.

[0013] As a preferred option, it also includes: An elastic rope is fixed at one end to the rotating plate and at the other end to the crushing component; A connecting frame is fixedly connected to the sliding rod. A gear shaft is rotatably connected to the connecting frame. A transmission gear is fixedly connected to the gear shaft of the connecting frame. A second torsion spring is fixedly connected between the transmission gear and the connecting frame. A fixed pulley is fixedly connected to the gear shaft of the transmission gear. A connecting rope is fixedly connected between the fixed pulley and the crushing part. A trigger rod is fixed to the housing near the transmission gear. The trigger rod has several rack portions that are spaced apart, and the rack portions are used to rotate the transmission gear.

[0014] The beneficial effects of this invention are: 1. This invention uses a shovel to flip the upper and lower layers of material, allowing the material far from the heat source and the material near the heat source to exchange positions, so that all materials are heated evenly. When the clump of material is vibrated but cannot be flipped due to its own weight, the shovel is used to flip the clump of material, so that the clump of material moves quickly before drying, reducing the amount of clumps formed after drying, and avoiding the upper side of the clump of material being wet and the lower side being over-dried due to the inability of the clump of material to be flipped, which would affect the drying effect of the material. 2. By scraping the material with a scraper, the probability of adhesion when the material has a high moisture content is reduced, the amount of material adhering to the screen plate is reduced, the difficulty of cleaning the screen plate is reduced, and the impact of the adhering material on the flowability of the material is reduced, so as to ensure the drying efficiency of the material and prevent the thickness of the screen plate from changing due to the adhesion of the material, thereby ensuring the heat stability during the material drying process. 3. The material is spread evenly on the surface of the screen plate by scraping, so that the material thickness is evenly spread on the surface of the screen plate. This prevents the material thickness distribution on the screen plate from being too different after the material is added, which would lead to different degrees of drying of the material on different parts of the screen plate and thus affect the drying effect of the material. 4. Through the continuous reciprocating movement of the crushing parts, the clumps of material between the crushing parts and the shovel plate are crushed, allowing the moist material wrapped inside the clumps to leak out, thereby reducing the amount of clumps and improving the quality of the dried material. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the outer casing of the present invention; Figure 3 This is a three-dimensional structural diagram of the sieve plate of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the first hydraulic telescopic rod of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the second hydraulic telescopic rod of the present invention; Figure 6 This is a three-dimensional structural diagram of the sealing push plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the shovel plate of the present invention; Figure 8 This is an exploded three-dimensional view of the shovel plate, hollow rotating shaft, and liquid bladder of the present invention. Figure 9 This is a three-dimensional structural cross-sectional view of the resistance element of the present invention; Figure 10 This is a three-dimensional structural diagram of the electric actuator of the present invention; Figure 11 This is a three-dimensional structural diagram of the scraper of the present invention; Figure 12 This is a three-dimensional structural diagram of the rotating plate of the present invention; Figure 13 This is a three-dimensional structural cross-sectional view of the shovel plate, rotating plate, and crushing component of the present invention; Figure 14 This is a three-dimensional structural diagram of the trigger rod of the present invention.

[0016] Explanation of reference numerals in the attached drawings: 1-Base, 2-Exhaust pipe, 3-Expansion joint, 4-Outer shell, 401-Feed pipe, 402-Discharge pipe, 403-Vibration motor, 5-Screw plate, 6-Shovel plate, 7-First hydraulic telescopic rod, 8-Second hydraulic telescopic rod, 9-Sealing push plate, 10-Hollow rotating shaft, 11-Liquid bladder, 12-Shell, 13-Third hydraulic telescopic rod, 14-Resistance component, 15-Electric push rod, 16-Connecting rod, 17-Scraper, 18-Fixed plate, 19-Flexible plate, 20-Sliding rod, 21-Rotating plate, 22-Crushing component, 23-Elastic rope, 24-Connecting frame, 25-Transmission gear, 26-Trigger rod, 2601-Rack section, 27-Fixed pulley. Detailed Implementation

[0017] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0018] A drying device for the preparation of monoammonium phosphate, such as Figures 1-7 As shown, the system includes: a base 1, on which a control terminal (not shown) is mounted; an exhaust pipe 2 is installed above the base 1, connected to an exhaust fan (not shown); the exhaust fan of the exhaust pipe 2 is electrically connected to the control terminal; the exhaust pipe 2 is equipped with several spaced-apart expansion joints 3; all expansion joints 3 are fixedly connected to a housing 4; the housing 4 is made of stainless steel and its inner wall is coated with a corrosion-resistant coating to improve its corrosion resistance; a heat source is located at the bottom inside the housing 4, which can be a steam heat exchanger or a gas-fired hot air furnace; when the housing 4 vibrates vertically, the expansion joints 3 extend and retract. A rectangular array of first elastic elements is installed between the shell 4 and the base 1. The first elastic elements of the shell 4 can be steel springs and rubber shock-absorbing pads. A feed pipe 401 and a discharge pipe 402 are respectively installed on the left and right sides of the shell 4. A vibration motor 403 is installed on the shell 4 and is electrically connected to a control terminal. The vibration motor 403 is used to cause the shell 4 to vibrate vertically, so that the material on the screen plate 5 jumps forward from left to right. The screen plate 5 is installed inside the shell 4 and gradually slopes downward from left to right. A shovel plate 6 is located inside the shell 4 and above the screen plate 5, to... Figure 1 Based on the main view, the orthographic projection of the shovel plate 6 in the main view direction is a parallelogram. The shovel plate 6 is used to scoop up materials and flip them. A power component is installed inside the outer shell 4, which is used to drive the shovel plate 6 to rotate and move.

[0019] like Figures 1-8As shown, the power assembly includes: a first hydraulic telescopic rod 7, fixedly connected to the outer shell 4, the telescopic end of the first hydraulic telescopic rod 7 being fixedly connected to the exhaust pipe 2 via a connector; during the vertical vibration of the outer shell 4 and the extension and retraction of the telescopic joint 3, the telescopic end of the first hydraulic telescopic rod 7 synchronously reciprocates; a second hydraulic telescopic rod 8, fixedly connected to the outer shell 4, the second hydraulic telescopic rod 8 being connected to the first hydraulic telescopic rod 7 via a first conduit; a sealing push plate 9 fixedly connected to the telescopic end of the second hydraulic telescopic rod 8; the sealing push plate 9 being slidably connected to the outer shell 4; and a hollow rotating shaft 10 rotatably connected inside the outer shell 4, the hollow rotating shaft 10 being fixedly connected to and connected to a liquid bladder 11; and a shovel plate 6 having a sliding groove, the width of which is greater at both ends than the width of the middle portion. Before the liquid bladder 11 expands, the liquid bladder 11 is slidably connected to the shovel plate 6. The distance that the liquid bladder 11 slides relative to the shovel plate 6 is the same as the extension of the telescopic end of the second hydraulic telescopic rod 8. After the liquid bladder 11 expands, the liquid bladder 11 is located at the right end of the sliding groove on the shovel plate 6, and the liquid bladder 11 is in close contact with the shovel plate 6. At this time, the hollow rotating shaft 10 drives the liquid bladder 11 to rotate, and the liquid bladder 11 can drive the shovel plate 6 to rotate. The hollow rotating shaft 10 is rotatably connected to the housing 12, which is fixedly connected to the outer shell 4. The housing 12 is connected to the first hydraulic telescopic rod 7 through the second conduit. The third hydraulic telescopic rod 13 is fixedly connected to the outer shell 4. The third hydraulic telescopic rod 13 is connected to the second conduit of the housing 12 through the branch conduit. The telescopic end of the third hydraulic telescopic rod 13 is transmitted to the hollow rotating shaft 10 through the cooperation of gears and racks.

[0020] like Figure 7 and Figure 8 As shown, the first conduit of the second hydraulic telescopic rod 8, the second conduit of the housing 12, and the branch conduit of the third hydraulic telescopic rod 13 are all equipped with resistance elements 14. The resistance element 14 consists of a hollow shell, a spring, and a sliding plate. The inner diameter of the hollow shell gradually decreases from the upper and lower parts to the middle part. When the liquid flows and presses the sliding plate of the resistance element 14 downward, the sliding plate of the resistance element 14 moves downward and the spring is compressed, so that the liquid in the resistance element 14 flows downward. When the liquid moves upward and presses the sliding plate of the resistance element 14, the liquid in the resistance element 14 flows upward. The spring and sliding plate of the resistance element 14 are used to apply resistance to the liquid flow. The resistance applied to the liquid by the resistance element 14 of the second conduit on the housing 12 is less than the resistance applied to the liquid by the other two resistance elements 14, so that the liquid in the first hydraulic telescopic rod 7 flows into the housing 12 first. After the liquid bladder 11 expands and sticks to the shovel plate 6, the liquid pressure impacts the other two resistance elements 14, so that the liquid in all resistance elements 14 flows.

[0021] The specific working principle is as follows: When the operator needs to use this device to dry monoammonium phosphate (hereinafter referred to as the material), the operator adds the material into the outer shell 4 through the feed pipe 401, and then starts the vibration motor 403 through the control terminal. The vibration motor 403 turns on and causes the outer shell 4 to vibrate vertically. The outer shell 4 drives the screen plate 5 inside to vibrate vertically. During the vertical vibration of the outer shell 4, all the expansion joints 3 continuously extend and retract, and all the first elastic elements between the outer shell 4 and the base 1 continuously shake. Since the screen plate 5 is tilted from left to right, the material on the screen plate 5 jumps forward from left to right. At the same time, the operator turns on the heat source inside the outer shell 4, and the hot air generated by the heat source dries the material. The operator turns on the exhaust fan of the exhaust pipe 2 through the control terminal. The exhaust fan draws the airflow inside the outer shell 4 through the exhaust pipe 2, so that the hot air passes through the material on the screen plate 5 from bottom to top, so as to improve the uniformity of heating during the drying process. With the jumping movement of the material, after drying, the material is finally discharged from the outer shell 4 through the discharge pipe 402, and the operator collects the material.

[0022] As the material moves to the right on the sieve plate 5, when it reaches the shovel plate 6, accompanied by the vertical vibration of the outer casing 4, the outer casing 4 first moves upward and squeezes the first hydraulic telescopic rod 7, causing the telescopic end of the first hydraulic telescopic rod 7 to contract. The liquid inside the first hydraulic telescopic rod 7 is then squeezed into the first conduit of the second hydraulic telescopic rod 8, the second conduit of the casing 12, and the branch conduit of the third hydraulic telescopic rod 13. The resistance element 14 on the second conduit of the casing 12 exerts less resistance on the liquid, allowing the liquid inside the second conduit of the casing 12 to enter the casing 12 first, and then the casing... Liquid 12 enters the liquid bladder 11 through the hollow rotating shaft 10. The liquid bladder 11 expands and adheres tightly to the shovel plate 6. Subsequently, liquid from the first conduit on the second hydraulic telescopic rod 8 enters the second hydraulic telescopic rod 8, causing the telescopic end of the second hydraulic telescopic rod 8 to retract and drive the sealing push plate 9 to move to the right. Liquid from the branch conduit on the third hydraulic telescopic rod 13 enters the third hydraulic telescopic rod 13, causing the telescopic end of the third hydraulic telescopic rod 13 to extend and drive the hollow rotating shaft 10 to rotate through the gear and rack. The hollow rotating shaft 10 drives the shovel plate 6 to rotate 180° clockwise through the liquid bladder 11 (rotation direction is as follows). Figure 1 (Based on the main view).

[0023] As the shovel plate 6 rotates clockwise, it rapidly flips the material on it (during which the material on the shovel plate 6 rapidly impacts the hot air inside the outer shell 4, and the wet material slides when the shovel plate 6 is flipped to an inclined state, causing the material to continuously shift and impact the hot air during the flipping process, increasing the contact amount between the material and the hot air inside the outer shell 4), exchanging the positions of the upper and lower layers of material, so that the material far from the heat source and the material close to the heat source exchange positions, so that all materials are heated evenly, shortening the drying time required for the material and the overall length of the drying device, and reducing the probability of the upper layer of material still having moisture after the lower layer of material is over-dried, thereby improving the efficiency and effect of material drying.

[0024] When the outer casing 4 moves downward, it causes the fixing part of the first hydraulic telescopic rod 7 to move downward, causing the telescopic end of the first hydraulic telescopic rod 7 to extend and return to its original position. The first hydraulic telescopic rod 7 sequentially draws liquid from the first conduit of the second hydraulic telescopic rod 8, the second conduit of the casing 12, and the branch conduit of the third hydraulic telescopic rod 13. The liquid in the casing 12 is first drawn back to its second conduit, and the liquid in the liquid bladder 11 flows back into the casing 12 through the hollow rotating shaft 10, causing the liquid bladder 11 to contract. At this time, the liquid bladder 11 is no longer in close contact with the scraper plate 6, and the liquid bladder 11 no longer drives the scraper plate 6 to rotate. Then, the liquid in the third hydraulic telescopic rod 13 is drawn back into the first hydraulic telescopic rod 7 through its branch conduit. The telescopic end of rod 13 drives the hollow rotating shaft 10 to rotate and reset via a gear and rack. The hollow rotating shaft 10 drives the liquid bladder 11 to rotate. The liquid in the second hydraulic telescopic rod 8 is drawn back into the first hydraulic telescopic rod 7 through the first conduit. The telescopic end of the second hydraulic telescopic rod 8 extends and drives the sealing push plate 9 to move to the left. The sealing push plate 9 moves to the left and pushes the shovel plate 6 to move to the left, so that the sliding groove of the shovel plate 6 moves to the left relative to the hollow rotating shaft 10. Since the orthographic projection of the shovel plate 6 in the main view direction is a parallelogram, the shape of the shovel plate 6 does not change after rotating 180°. The shovel plate 6 moves to the left and shovels the material to its upper side. The above steps are repeated, and the shovel plate 6 continuously flips the material.

[0025] When the material drying is complete and the device needs to be stopped, the operator should turn off the heat source and shut off the exhaust fan and vibration motor 403 through the control terminal. Then, the device should be cleaned for the next use.

[0026] like Figures 9-11As shown, it also includes: an electric push rod 15, fixed to the housing 4 near the feed pipe 401, the electric push rod 15 is electrically connected to the control terminal, the telescopic end of the electric push rod 15 is fixed to the connecting rod 16, the longitudinal section of the scraper 17 in the left and right direction is n-shaped (i.e. the scraper 17 has a recessed part), the front part of the lower side of the scraper 17 is in contact with the surface of the screen plate 5, and there is a gap between the rear part of the lower side of the scraper 17 and the screen plate 5; the scraper 17 has several linearly arranged scrapers, all of which are fixed to the connecting rod 16, the screen plate 5 is fixed to several linearly arranged fixed plates 18, the fixed plates 18 are fixed to flexible plates 19, the flexible plates 19 are in contact with the screen plate 5, the flexible plates 19 are located between two adjacent scrapers 17, the scraper 17 is used to squeeze the adjacent flexible plates 19 on the rear side, the distance between the front side of the scraper 17 and the adjacent flexible plates 19 on the rear side is X, the extension of the telescopic end of the electric push rod 15 is Y, X = Y.

[0027] The specific working principle is as follows: As the material jumps forward from left to right, the material that just enters the outer shell 4 and onto the screen plate 5 still contains a large amount of moisture (monoammonium phosphate with higher moisture content has stronger adhesion). At this time, the operator activates the electric push rod 15 through the control terminal, causing the telescopic end of the electric push rod 15 to move back and forth. The telescopic end of the electric push rod 15 drives all the scrapers 17 to move back and forth through the connecting rod 16. The scrapers 17 first move backward and scrape the material on the screen plate 5, scraping the material towards the adjacent flexible plate 19 on the rear side. When the telescopic end of the electric push rod 15 extends to its limit, the front side of the scraper 17 moves to be flush with the front side of the adjacent fixed plate 18 on the rear side. The flexible plate 19 is squeezed and deformed by the scraper 17 (as the scraper 17 moves backward). As the scraper 17 moves to contact the flexible plate 19, the material is accumulated between the scraper 17 and the flexible plate 19. Then the scraper 17 continues to move backward, and the flexible plate 19 is squeezed and deformed. The flexible plate 19 squeezes the material into the recess of the scraper 17, so that the scraper 17 can scrape the material forward when it moves forward. By scraping the material with the scraper 17, the probability of adhesion when the material has a high moisture content is reduced, the amount of material adhering to the screen plate 5 is reduced, the cleaning difficulty of the screen plate 5 is reduced, and the stability of the material flow on the screen plate 5 is ensured to guarantee the drying efficiency of the material. It also prevents the material from adhering to the screen plate 5 and causing changes in the thickness of the screen plate 5, thereby ensuring the heat stability during the material drying process.

[0028] When the telescopic end of the electric push rod 15 retracts, the telescopic end of the electric push rod 15 drives all scrapers 17 to move forward through the connecting rod 16. The scrapers 17 no longer squeeze the flexible plate 19, and the flexible plate 19 gradually returns to its original position. There is a gap between the rear part of the lower side of the scraper 17 and the screen plate 5. The material accumulated in the recess of the scraper 17 flows out and is spread evenly on the surface of the screen plate 5 through the rear part of the lower side of the scraper 17, so that the material thickness is evenly spread on the surface of the screen plate 5. This prevents the material thickness distribution on the screen plate 5 from being too different after the material is added, which would result in different degrees of drying of the material on the screen plate 5 and thus affect the drying effect of the material.

[0029] After the operator stops using the device, the operator can turn off the electric push rod 15 via the control terminal.

[0030] like Figure 4 , Figure 10 and Figure 12 As shown, it also includes: a sliding rod 20, slidably connected to the outer casing 4, with a second elastic element, which is a tension spring, fixed between the sliding rod 20 and the outer casing 4; a rotating plate 21, rotatably connected to the sliding rod 20, with a protrusion on the lower right side of the sliding rod 20 to prevent the rotating plate 21 from rotating. Figure 1 The main view is the rotation reference, so that the rotating plate 21 can only rotate clockwise. The rotating plate 21 is located above the shovel plate 6. The rotating plate 21 is used to squeeze the shovel plate 6 and squeeze the material on the upper side of the shovel plate 6. A first torsion spring is fixed between the rotating plate 21 and the sliding rod 20. The elastic force of the first torsion spring on the rotating plate 21 is less than the elastic force of the second elastic element on the sliding rod 20, so that the sliding rod 20 will only move upward under the pressure of the rotating plate 21 after the rotating plate 21 rotates to the limit state.

[0031] like Figure 12 and Figure 13 As shown, it also includes: a crushing component 22, which is slidably connected to the rotating plate 21. Both the upper and lower sides of the shovel plate 6 are provided with rough surfaces. The material is crushed by the relative friction between the rough surfaces of the shovel plate 6 and the crushing component 22, so as to reduce the probability of material agglomeration.

[0032] like Figures 12-14As shown, it also includes: an elastic rope 23, with its right end fixed to the rotating plate 21 and its left end fixed to the crushing component 22; a connecting frame 24, fixed to the sliding rod 20, with a gear shaft rotatably connected to the connecting frame 24, a transmission gear 25 fixed to the gear shaft of the connecting frame 24, a second torsion spring fixed between the transmission gear 25 and the connecting frame 24, a fixed pulley 27 fixed to the gear shaft of the transmission gear 25, a connecting rope fixed between the fixed pulley 27 and the crushing component 22, the connecting rope between the fixed pulley 27 and the crushing component 22 is not elastic, and the connecting rope between the fixed pulley 27 and the crushing component 22 is always taut; and a trigger rod 26, fixed to the outer casing 4 near the transmission gear 25, the trigger rod 26 having several rack portions 2601 spaced apart, two rack portions 2601 cannot simultaneously mesh with the transmission gear 25, the rack portions 2601 are used to rotate the transmission gear 25.

[0033] The specific working principle is as follows: When the shovel plate 6 flips upward, it presses against the rotating plate 21, causing the rotating plate 21 to rotate. The first torsion spring of the rotating plate 21 stores energy. When the rotating plate 21 reaches its limit, the shovel plate 6 presses against it, and then the shovel plate 6 presses the rotating plate 21 upward. The rotating plate 21 drives the sliding rod 20 upward, stretching the second elastic element of the sliding rod 20. During the upward movement of the sliding rod 20, the connecting frame 24 moves upward, and the connecting frame 24 drives the transmission gear 25 upward. The transmission gear 25 first meshes with the adjacent rack portion 2601, causing it to rotate during movement. The second torsion spring of the transmission gear 25 stores energy briefly, and the transmission gear 25 drives the fixed pulley 27 to rotate. The fixed pulley 27 pulls the crushing component 22 through the connecting rope, causing the elastic rope 23 to stretch and deform. The crushing component 22 moves and moves relative to the rough surface between the shovel plate 6, thus crushing the components. The material between the grinding component 22 and the shovel plate 6 is ground. Then, when the transmission gear 25 loses engagement with the adjacent rack section 2601, the second torsion spring of the transmission gear 25 resets, causing the transmission gear 25 to rotate and reset. The elastic rope 23 springs back and resets, and the elastic rope 23 drives the grinding component 22 to reset. The grinding component 22 drives the connecting rope to reset. Then, the transmission gear 25 continues to move upward and engages with the next rack section 2601. The above steps are repeated, causing the grinding component 22 to move back and forth continuously, crushing the clumps of material between the grinding component 22 and the shovel plate 6. This allows the moist material wrapped inside the clumps to leak out (the surface of the clumps is in contact with hot air and is easy to dry, but the material wrapped inside the clumps contains moisture, and the moisture in the wrapped material cannot directly contact the hot air, so the wrapped material is in a moist state and difficult to dry), thereby reducing the amount of clumps and improving the quality of the dried material.

[0034] When it is necessary to stop using this device to dry materials, the operator turns off the heat source and shuts off the exhaust fan, electric push rod 15 and vibration motor 403 through the control terminal. Then the device is cleaned for the next use.

[0035] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A drying apparatus for preparing monoammonium phosphate, characterized in that, Including: A base (1) is provided with an exhaust pipe (2) above the base (1). The exhaust pipe (2) is equipped with several spaced telescopic joints (3). All the telescopic joints (3) are fixedly connected to a shell (4). A first elastic element is installed between the shell (4) and the base (1). A feed pipe (401) and a discharge pipe (402) are respectively installed on both sides of the shell (4). A vibration motor (403) is installed on the shell (4). A sieve plate (5) is installed inside the housing (4). The sieve plate (5) gradually slopes downward from the side near the feed pipe (401) to the side near the discharge pipe (402). A shovel plate (6) is disposed inside the outer shell (4) and located on the upper side of the screen plate (5). The shovel plate (6) is used to scoop up the material and flip the material. A power component is disposed inside the outer shell (4). The power component is used to drive the shovel plate (6) to rotate and move.

2. The drying equipment for preparing monoammonium phosphate according to claim 1, characterized in that, The power assembly includes: The first hydraulic telescopic rod (7) is fixedly connected to the outer shell (4), and the telescopic end of the first hydraulic telescopic rod (7) is fixedly connected to the exhaust pipe (2) through a connector; The second hydraulic telescopic rod (8) is fixed to the outer shell (4). The second hydraulic telescopic rod (8) is connected to the first hydraulic telescopic rod (7) through the first conduit. The telescopic end of the second hydraulic telescopic rod (8) is fixed with a sealing push plate (9). The sealing push plate (9) is in a sealed sliding connection with the outer shell (4). A hollow rotating shaft (10) is rotatably connected to the outer shell (4). The hollow rotating shaft (10) is fixedly connected to and communicates with a liquid bladder (11). Before the liquid bladder (11) expands, the liquid bladder (11) is slidably connected to the shovel plate (6). After the liquid bladder (11) expands, the liquid bladder (11) is pressed against the shovel plate (6). The hollow rotating shaft (10) is rotatably connected to a shell (12) that communicates with it. The shell (12) is fixedly connected to the outer shell (4). The shell (12) is communicated with the first hydraulic telescopic rod (7) through a second conduit. The third hydraulic telescopic rod (13) is fixed to the outer shell (4). The third hydraulic telescopic rod (13) is connected to the second conduit of the outer shell (12) through a branch conduit. The telescopic end of the third hydraulic telescopic rod (13) is connected to the hollow rotating shaft (10) through a gear and rack transmission.

3. The drying equipment for preparing monoammonium phosphate according to claim 2, characterized in that, The first conduit of the second hydraulic telescopic rod (8), the second conduit of the housing (12), and the branch conduit of the third hydraulic telescopic rod (13) are all equipped with resistance elements (14). The resistance elements (14) are used to apply resistance to the flow of liquid. The resistance applied to the liquid by the resistance element (14) of the second conduit on the housing (12) is less than the resistance applied to the liquid by the other two resistance elements (14), so that the liquid in the first hydraulic telescopic rod (7) flows preferentially into the housing (12).

4. The drying equipment for preparing monoammonium phosphate according to claim 2, characterized in that, It also includes: An electric push rod (15) is fixed to the outer shell (4) near the feed pipe (401), and a connecting rod (16) is fixed to the telescopic end of the electric push rod (15). The scraper (17) has several in a linear array and is fixed to the connecting rod (16).

5. The drying equipment for preparing monoammonium phosphate according to claim 4, characterized in that, The sieve plate (5) is fixed with a number of linearly distributed fixed plates (18), and the fixed plates (18) are fixed with flexible plates (19). The flexible plates (19) are in contact with the sieve plate (5), and the flexible plates (19) are located between two adjacent scrapers (17). The scrapers (17) are used to squeeze the adjacent flexible plates (19) away from the electric push rod (15).

6. The drying equipment for preparing monoammonium phosphate according to claim 5, characterized in that, The scraper (17) has an n-shaped cross section. The lower part of the scraper (17) away from the flexible plate (19) is in contact with the surface of the sieve plate (5), and the other part of the scraper (17) near the flexible plate (19) has a gap with the sieve plate (5).

7. The drying equipment for preparing monoammonium phosphate according to claim 4, characterized in that, It also includes: A sliding rod (20) is slidably connected to the outer shell (4), and a second elastic element is fixedly connected between the sliding rod (20) and the outer shell (4); A rotating plate (21) is rotatably connected to the sliding rod (20). The rotating plate (21) is located above the shovel plate (6). The rotating plate (21) is used to squeeze the shovel plate (6).

8. The drying equipment for preparing monoammonium phosphate according to claim 7, characterized in that, A first torsion spring is fixed between the rotating plate (21) and the sliding rod (20), and the elastic force of the first torsion spring on the rotating plate (21) is less than the elastic force of the second elastic element on the sliding rod (20).

9. The drying equipment for preparing monoammonium phosphate according to claim 8, characterized in that, It also includes: The crushing component (22) is slidably connected to the rotating plate (21), and the upper and lower sides of the shovel plate (6) are provided with rough surfaces.

10. A drying apparatus for preparing monoammonium phosphate according to claim 9, characterized in that, It also includes: The elastic rope (23) is fixed at one end to the rotating plate (21) and at the other end to the crushing component (22); A connecting frame (24) is fixedly connected to the sliding rod (20). The connecting frame (24) is rotatably connected to a gear shaft. A transmission gear (25) is fixedly connected to the gear shaft of the connecting frame (24). A second torsion spring is fixedly connected between the transmission gear (25) and the connecting frame (24). A fixed pulley (27) is fixedly connected to the gear shaft of the transmission gear (25). A connecting rope is fixedly connected between the fixed pulley (27) and the crushing part (22). The trigger rod (26) is fixed to the housing (4) near the transmission gear (25). The trigger rod (26) is provided with a plurality of rack portions (2601) spaced apart. The rack portions (2601) are used to rotate the transmission gear (25).

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