A drying and cooling device for monoammonium phosphate production

Abstract

The present invention relates to the technical field of drying equipment, and particularly relates to a drying and cooling device for monoammonium phosphate production, which comprises a machine base. A drying cylinder and a feeding shell are installed at the upper end of the machine base, and the feeding shell is installed at the upper end of the drying cylinder. A drying assembly is arranged inside the drying cylinder. The drying assembly includes a material changing mechanism and a drying mechanism. The material changing mechanism includes a rotating roller, a storage tank and a discharge port. The rotating roller is rotatably connected inside the drying cylinder, a plurality of storage tanks are all opened on the circumferential surface of the rotating roller, and a plurality of discharge ports are all opened at the front end of the rotating roller. A blanking port is opened at the rear end of the drying cylinder. The drying mechanism includes a hot air blower, a shunt pipe and a wind disc. A fixing frame is installed at the lower end of the machine base. Under the action of the drying assembly of the present invention, the monoammonium phosphate slurry can be stored continuously in small amounts for multiple times, and continuously discharged after being dried, so that the feeding and discharging of monoammonium phosphate during drying are coherent, and the drying efficiency of the monoammonium phosphate slurry is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and more particularly to a drying and cooling device for the production of monoammonium phosphate. Background Art

[0002] Monoammonium phosphate is a water-soluble quick-acting compound fertilizer, one of the main varieties of high-concentration phosphate compound fertilizers, and also the most important basic raw material for the production of ternary compound fertilizers and BB fertilizers; it is widely applicable to various food crops and cash crops such as rice, wheat, corn, sorghum, cotton, fruits, and vegetables; and is applicable to various soil types such as red soil, yellow soil, brown soil, yellow tidal soil, black soil, cinnamon soil, purple soil, and albic soil.

[0003] Deficiencies of the prior art: In the production of monoammonium phosphate, drying treatment is required, and the reacted slurry is sent into the drying chamber through a high-pressure pump. However, after the existing drying equipment finishes drying monoammonium phosphate, it needs to be discharged from the drying chamber, and then a new batch of monoammonium phosphate is transported into the drying chamber for drying treatment. Since a large amount of time is required for loading and unloading each time the monoammonium phosphate is dried, a large amount of time is consumed, resulting in low drying efficiency. Therefore, we have proposed a drying and cooling device for the production of monoammonium phosphate. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a drying and cooling device for the production of monoammonium phosphate to solve the problems existing in the above-mentioned background art.

[0005] The present invention provides the following technical solution: A drying and cooling device for the production of monoammonium phosphate, including a machine base, a drying cylinder and a feeding shell are installed at the upper end of the machine base, the feeding shell is installed at the upper end of the drying cylinder, a drying component is arranged inside the drying cylinder, the drying component includes a material-changing mechanism and a drying mechanism, the material-changing mechanism includes a rotating roller, a storage tank and a discharge port, the rotating roller is rotatably connected inside the drying cylinder, a plurality of the storage tanks are all opened on the circumferential surface of the rotating roller, a plurality of the discharge ports are all opened at the front end of the rotating roller, and a blanking port is opened at the rear end of the drying cylinder;

[0006] The drying mechanism includes a hot air blower, a shunt pipe and a wind disc, a fixing frame is installed at the lower end of the machine base, the hot air blower is installed at the upper end of the fixing frame, the shunt pipe is installed inside the rotating roller, the output end of the hot air blower is connected to the shunt pipe through a rotating joint, a plurality of the wind discs are all installed inside the rotating roller, the wind discs are all connected to the output end of the shunt pipe, a plurality of air jet nozzles are installed at the front end of the wind disc, and exhaust holes are opened on the surfaces of the wind disc and the drying cylinder;

[0007] Preferably, a driving motor is installed at the upper end of the machine base. A driving shaft is installed at the output end of the driving motor. A first connecting column is installed at the rear end of the rotating roller. The first connecting column is rotatably connected to a rotating seat installed at the upper end of the machine base. The first connecting column and the driving shaft are connected by a first sprocket set.

[0008] Preferably, a driven shaft is rotatably connected inside the feeding shell. A plurality of stirring rods are installed on the circumferential surface of the driven shaft. The driven shaft and the first connecting column are connected by a second sprocket set.

[0009] Preferably, an internal gear ring is fixedly connected inside the drying cylinder. A rotating rod is rotatably connected inside the drying cylinder and the air disc. A plurality of stirring rods and scraping plates are installed on the circumferential surface of the rotating rod. The first gears installed on the circumferential surface of the rotating rod are all meshed with the internal gear ring.

[0010] Preferably, a rotating frame is installed at the rear end of the rotating roller. A driving rod and a driven rod are rotatably connected inside the rotating frame. Second gears and first bevel gears are installed on the circumferential surface of the driving rod. The second gears are meshed with the internal gear ring. A second bevel gear and a cam are installed on the circumferential surface of the driven rod. The first bevel gear is meshed with the second bevel gear. A limiting frame is installed on the surface of the rotating frame. A support ring is installed on the circumferential surface of the rotating rod. A return spring is installed between the support ring and the limiting frame. The cam is slidably connected to the rotating rod.

[0011] Preferably, a blanking shell is installed at the front end of the drying cylinder. A cooling component is arranged inside the blanking shell. A rotating shaft is rotatably connected inside the blanking shell. A pushing plate is installed on the circumferential surface of the rotating shaft. A second connecting column is installed at the front end of the rotating roller. A third gear is installed on the circumferential surface of the second connecting column. A fourth gear installed on the circumferential surface of the rotating shaft is meshed with the third gear. A shielding shell installed at the upper end of the machine base is rotatably connected to the second connecting column and the rotating shaft. The third gear and the fourth gear are both located inside the shielding shell.

[0012] Preferably, the cooling component includes an air box, air jet ports, a filter plate and a discharge pipe. The air box is installed at the lower end of the blanking shell. The output end of an air pump installed at the upper end of the fixed frame is connected to the air box through a connecting pipe. A plurality of air jet ports are installed at the upper end of the air box. The air jet ports are all inclined. The filter plate is installed at the upper end of the blanking shell. A discharge shell is installed at the upper end of the air box. The discharge shell is located above the filter plate. The discharge pipe is installed at the upper end of the discharge shell.

[0013] Preferably, a guide rod is installed inside the blanking shell. A mounting plate is slidably connected to the circumferential surface of the guide rod. A cleaning brush installed at the upper end of the mounting plate is slidably connected to the filter plate. A reciprocating lead screw and a connecting rod are rotatably connected inside the blanking shell. The reciprocating lead screw is threadedly connected to the mounting plate. The connecting rod is connected to the rotating shaft through a third sprocket set. A third bevel gear is installed on the circumferential surface of the reciprocating lead screw. A fourth bevel gear installed on the circumferential surface of the connecting rod meshes with the third bevel gear.

[0014] The technical effects and advantages of the present invention:

[0015] 1. By controlling the rotation of the rotating roller in the present invention, the storage grooves formed on the circumferential surface of the rotating roller will continuously pass by the lower end of the feeding shell. When the storage groove corresponds to the discharge end of the feeding shell, the monoammonium phosphate slurry in the feeding shell will drop into the storage groove at this time. Then, hot air is sprayed through the air jet head, so that the hot air contacts the monoammonium phosphate slurry in the storage groove to evaporate the moisture therein. When the discharge port corresponds to the blanking port opened at the rear end of the drying cylinder, under the action of the impact of high-pressure air flow, the dried monoammonium phosphate can be blown away and discharged through the blanking port. By providing multiple storage grooves, the monoammonium phosphate slurry can be stored continuously in small amounts multiple times, and after drying, it is continuously discharged, making the feeding and discharging of monoammonium phosphate during drying coherent, and improving the drying efficiency of the monoammonium phosphate slurry.

[0016] 2. By controlling the operation of the air pump in the present invention, air is finally ejected through the air jet ports to form an air curtain. Since the air jet ports are all inclined, when the dried monoammonium phosphate flows downward and discharges from the blanking shell, the gas will disperse the monoammonium phosphate discharged downward and take away the heat therein. Since there is hot air input above the blanking shell and natural wind input from the outside below the blanking shell, the hot air in the blanking shell can only be discharged through the filter plate installed at the upper end of the discharge shell, achieving the effect of cooling the monoammonium phosphate. At the same time, the monoammonium phosphate is isolated by the filter plate, and the dust generated during the drying process is discharged together with the hot air through the filter plate and finally discharged and collected through the discharge pipe. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure in the present invention;

[0018] Figure 2 is a schematic diagram of the rear side in the present invention;

[0019] Figure 3 is a schematic diagram of the right-side cross-section in the present invention;

[0020] Figure 4 is a schematic diagram of the front-side cross-section in the present invention;

[0021] Figure 5Schematic diagram of the drying mechanism in the present invention;

[0022] Figure 6 Schematic diagram of the rotating rod in the present invention;

[0023] Figure 7 Schematic diagram when the storage tank and the discharge opening of the feed shell are misaligned in the present invention;

[0024] Figure 8 Schematic diagram of the drying cylinder and the rotating roller in the present invention;

[0025] Figure 9 Schematic diagram when the drying cylinder and the rotating roller are disassembled in the present invention;

[0026] Figure 10 Schematic diagram of the drying cylinder in the present invention;

[0027] Figure 11 In the present invention Figure 10 Schematic diagram of part A;

[0028] Figure 12 Schematic diagram when the first gear is disassembled in the present invention;

[0029] Figure 13 Schematic diagram of the discharge shell in the present invention;

[0030] Figure 14 Schematic diagram of partial disassembly of the discharge shell in the present invention;

[0031] Figure 15 Schematic diagram of the cross-section of the discharge shell in the present invention;

[0032] Figure 16 In the present invention Figure 15 Schematic diagram of part B.

[0033] The reference numerals are as follows: 1, machine base; 101, drying cylinder; 102, feed housing; 103, fixing frame; 2, drying assembly; 21, material changing mechanism; 211, rotating roller; 212, storage tank; 213, discharge port; 214, blanking port; 22, drying mechanism; 221, hot air blower; 222, shunt pipe; 223, rotating joint; 224, air disc; 225, air jet head; 226, exhaust hole; 3, drive motor; 301, drive shaft; 302, first connecting column; 303, rotating seat; 304, first sprocket set; 305, driven shaft; 306, stirring rod; 307, second sprocket set; 4, internal gear ring; 401, rotating rod; 402, stirring rod; 403, scraper; 404, first gear; 405, rotating frame; 406, drive rod; 407, driven rod; 408, second gear; 409, first bevel gear; 4010, second bevel gear; 4011, cam; 4012, limiting frame; 4013, support ring; 4014, return spring; 5, blanking housing; 501, rotating shaft; 502, push plate; 503, second connecting column; 504, third gear; 505, fourth gear; 506, shielding housing; 6, cooling assembly; 601, air box; 602, air pump; 603, connecting pipe; 604, air jet port; 605, filter plate; 606, discharge housing; 607, discharge pipe; 7, guide rod; 701, mounting plate; 702, cleaning brush; 703, reciprocating lead screw; 704, connecting rod; 705, third sprocket set; 706, third bevel gear; 707, fourth bevel gear. Detailed implementation manners

[0034] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples, and a drying and cooling device for ammonium dihydrogen phosphate production according to the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0035] As Figures 1-9 shown, in one embodiment, a drying and cooling device for ammonium dihydrogen phosphate production is proposed, which includes a machine base 1. A drying cylinder 101 and a feed housing 102 are installed at the upper end of the machine base 1. The feed housing 102 is installed at the upper end of the drying cylinder 101. A drying assembly 2 is arranged in the drying cylinder 101. The drying assembly 2 includes a material changing mechanism 21 and a drying mechanism 22. The material changing mechanism 21 includes a rotating roller 211, a storage tank 212 and a discharge port 213. The rotating roller 211 is rotatably connected in the drying cylinder 101. A plurality of storage tanks 212 are all opened on the circumferential surface of the rotating roller 211. A plurality of discharge ports 213 are all opened at the front end of the rotating roller 211. A blanking port 214 is opened at the rear end of the drying cylinder 101;

[0036] The drying mechanism 22 includes a hot air blower 221, a shunt pipe 222 and an air disc 224. A fixing frame 103 is installed at the lower end of the machine base 1. The hot air blower 221 is installed at the upper end of the fixing frame 103. The shunt pipe 222 is installed inside the rotating roller 211. The output end of the hot air blower 221 is connected to the shunt pipe 222 through a rotating joint 223. A plurality of air discs 224 are installed inside the rotating roller 211. The air discs 224 are all connected to the output end of the shunt pipe 222. A plurality of air jet nozzles 225 are installed at the front end of the air disc 224. Exhaust holes 226 are formed on the surfaces of the air disc 224 and the drying cylinder 101.

[0037] In practical application of the embodiment of the present invention, by storing the monoammonium phosphate slurry in the feed housing 102, then controlling the slow rotation of the rotating roller 211, the storage grooves 212 formed on the circumferential surface of the rotating roller 211 will continuously pass by the lower end of the feed housing 102. When the storage groove 212 corresponds to the discharge end of the feed housing 102, the monoammonium phosphate slurry in the feed housing 102 will fall into the storage groove 212. Since the opening area of the storage groove 212 is limited, the time for the monoammonium phosphate slurry to enter the storage groove 212 is short, so that the total amount of the monoammonium phosphate slurry in the storage groove 212 can be controlled, avoiding excessive monoammonium phosphate slurry entering the storage groove 212, which is not conducive to the subsequent drying of the monoammonium phosphate slurry. At the same time, control the hot air blower 221 to start. Under the action of the rotating joint 223 and the shunt pipe 222, hot air is conveyed into the air disc 224, and then the hot air is ejected through the air jet nozzles 225, so that the hot air contacts the monoammonium phosphate slurry in the storage groove 212, evaporating the moisture therein. Finally, the evaporated water vapor is discharged through the exhaust holes 226. Since the rotating roller 211 is in a continuous rotating state, the monoammonium phosphate slurry in the storage groove 212 will turn over with the rotation of the rotating roller 211, avoiding the monoammonium phosphate slurry from piling up, which is conducive to the drying treatment of the monoammonium phosphate slurry;

[0038] Moreover, the discharge port 213 opened at the rear end of the rotating roller 211 communicates with the storage tank 212. When the discharge port 213 corresponds to the feeding port 214 opened at the rear end of the drying cylinder 101, under the action of the impact of high-pressure air flow, the dried monoammonium phosphate can be blown away and discharged through the feeding port 214. At the same time, the feeding port 214 is arranged on the left side of the rear end of the drying cylinder 101. When one of the storage tanks 212 is filled with monoammonium phosphate slurry, it takes a long time to move it to the position of the feeding port 214 by the rotation of the rotating roller 211, and the rotation speed of the rotating roller 211 is slow. When one storage tank 212 inputs monoammonium phosphate slurry and moves to the position of the feeding port 214, there is sufficient time to dry the monoammonium phosphate slurry to ensure the drying effect of the monoammonium phosphate slurry. When drying the monoammonium phosphate slurry, by arranging a plurality of storage tanks 212, the monoammonium phosphate slurry can be stored continuously in small amounts for multiple times and continuously discharged after drying, so that the feeding and discharging of monoammonium phosphate during drying are coherent, and the drying efficiency of the monoammonium phosphate slurry is improved.

[0039] As Figure 3 shown, as a preferred embodiment of the present invention, a driving motor 3 is installed at the upper end of the machine base 1. A driving shaft 301 is installed at the output end of the driving motor 3. A first connecting column 302 is installed at the rear end of the rotating roller 211. The first connecting column 302 is rotatably connected to a rotating seat 303 installed at the upper end of the machine base 1. The first connecting column 302 and the driving shaft 301 are connected by a first sprocket set 304.

[0040] In the actual application of the embodiment of the present invention, by controlling the operation of the driving motor 3, the driving motor 3 drives the driving shaft 301 to rotate. The driving shaft 301 drives the first connecting column 302 to rotate through the first sprocket set 304, and the first connecting column 302 will drive the rotating roller 211 to rotate, so as to achieve the effect of controlling the rotation of the position of the storage tank 212 in the rotating roller 211, continuously switching the position of the storage tank 212 to supplement monoammonium phosphate slurry therein, and at the same time completing the feeding operation of the dried monoammonium phosphate.

[0041] As Figure 3 and 4 shown, as another preferred embodiment of the present invention, a driven shaft 305 is rotatably connected in the feeding shell 102. A plurality of stirring rods 306 are installed on the circumferential surface of the driven shaft 305. The driven shaft 305 and the first connecting column 302 are connected by a second sprocket set 307.

[0042] In the actual application of the embodiment of the present invention, when the first connecting column 302 rotates, the first connecting column 302 drives the driven shaft 305 to rotate through the second sprocket group 307, and the driven shaft 305 drives the stirring rod 306 to rotate, stirring the lower part of the feed shell 102 to maintain the fluidity of the monoammonium phosphate slurry at the lower end of the feed shell 102. When the lower end of the feed shell 102 corresponds to the position of the storage tank 212, the monoammonium phosphate slurry can be stably supplemented into the storage tank 212.

[0043] In one case of the embodiment of the present invention, when the monoammonium phosphate slurry can be stably supplemented into the storage tank 212, since the time when each storage tank 212 corresponds to the lower end of the feed shell 102 is the same, the content of the monoammonium phosphate slurry entering each storage tank 212 can be made similar, avoiding the situation of too much or too little monoammonium phosphate slurry in the storage tank 212 and ensuring the drying effect of the monoammonium phosphate slurry. When there is too much monoammonium phosphate slurry in the storage tank 212, it is difficult to ensure the drying effect of the monoammonium phosphate slurry. When there is too little monoammonium phosphate slurry in the storage tank 212, the monoammonium phosphate slurry will be dried in advance, wasting a certain amount of drying time and reducing the drying efficiency.

[0044] As Figure 3 、 6 As shown in Figures 10 and 11, as another preferred embodiment of the present invention, an internal gear ring 4 is fixedly connected inside the drying cylinder 101, and a rotating rod 401 is rotatably connected inside the drying cylinder 101 and the air disk 224. A plurality of stirring rods 402 and scraping plates 403 are installed on the circumferential surface of the rotating rod 401, and the first gears 404 installed on the circumferential surface of the rotating rod 401 are all meshed with the internal gear ring 4.

[0045] In the actual application of the embodiment of the present invention, when the rotating roller 211 rotates, the rotating roller 211 drives a plurality of rotating rods 401 and first gears 404 to rotate. At this time, under the action of the internal gear ring 4, the first gears 404 are driven to rotate, thereby realizing the revolution and self-rotation of the rotating rod 401 at the same time. Since there is a large transmission ratio between the first gear 404 and the internal gear ring 4, when the rotating roller 211 rotates slowly, the self-rotation speed of the rotating rod 401 is relatively fast. At this time, the rotating rod 401 drives the stirring rod 402 and the scraping plate 403 to rotate. Under the action of the scraping plate 403, the monoammonium phosphate slurry adhering to the inner wall of the storage tank 212 can be scraped off. At the same time, under the stirring action of the stirring rod 402, the monoammonium phosphate slurry in the storage tank 212 can be stirred and dispersed. In cooperation with the hot air, the drying speed of the monoammonium phosphate slurry can be increased. At the same time, when the stirring rod 306 rotates, it can push the monoammonium phosphate slurry backward to prevent the high-pressure hot air from blowing the monoammonium phosphate slurry to the front end of the storage tank 212 to form a pile.

[0046] As Figure 10 、 11As shown in FIGS. 11 and 12, as another preferred embodiment of the present invention, a rotating frame 405 is installed at the rear end of the rotating roller 211. A driving rod 406 and a driven rod 407 are rotatably connected within the rotating frame 405. A second gear 408 and a first bevel gear 409 are installed on the circumferential surface of the driving rod 406. The second gear 408 meshes with the internal gear ring 4. A second bevel gear 4010 and a cam 4011 are installed on the circumferential surface of the driven rod 407. The first bevel gear 409 meshes with the second bevel gear 4010. A limiting frame 4012 is installed on the surface of the rotating frame 405. A support ring 4013 is installed on the circumferential surface of the rotating rod 401. A return spring 4014 is installed between the support ring 4013 and the limiting frame 4012. The cam 4011 is slidably connected to the rotating rod 401.

[0047] In the actual application of the embodiment of the present invention, when the rotating roller 211 rotates, the internal gear ring 4 will drive the second gear 408 to rotate and self-rotate. The second gear 408 drives the driving rod 406 to rotate. Due to the large transmission ratio between the internal gear ring 4 and the second gear 408, when the rotating roller 211 rotates slowly, the self-rotation speed of the driving rod 406 is relatively fast. Subsequently, the driving rod 406 drives the driven rod 407 to rotate under the action of the first bevel gear 409 and the second bevel gear 4010. The driven rod 407 drives the cam 4011 to rotate. The cam 4011 will push the rotating rod 401 forward. When the rotating rod 401 moves forward, the position of the first gear 404 is restricted by the limiting frame 4012 to ensure that it remains in place. At this time, the rotating rod 401 will slide relative to the first gear 404. Subsequently, under the action of the support ring 4013 and the return spring 4014, the effect of controlling the rotating rod 401 to slide back and forth within the drying cylinder 101 and the air disc 224 can be achieved, thereby driving the stirring rod 402 to slide back and forth reciprocally. When the stirring rod 402 stirs the slurry, with the rapid back-and-forth movement of the stirring rod 402, not only can the coverage area of the stirring rod 402 be increased, but also the ammonium dihydrogen phosphate slurry can be effectively stirred and dispersed by the forward and backward pushing of the stirring rod 402 to prevent the ammonium dihydrogen phosphate slurry from piling up. Finally, when the ammonium dihydrogen phosphate is dried by high-pressure hot air, under the action of the stirring rod 402, the dried ammonium dihydrogen phosphate can be in a scattered and overturned state. When discharging, the high-pressure hot air can easily blow the dried ammonium dihydrogen phosphate out from the discharging port 214.

[0048] As Figure 13 and 14As shown in the figure, as another preferred embodiment of the present invention, a blanking shell 5 is installed at the front end of the drying cylinder 101. A cooling assembly 6 is arranged inside the blanking shell 5. A rotating shaft 501 is rotatably connected inside the blanking shell 5. A pushing plate 502 is installed on the circumferential surface of the rotating shaft 501. A second connecting column 503 is installed at the front end of the rotating roller 211. A third gear 504 is installed on the circumferential surface of the second connecting column 503. A fourth gear 505 installed on the circumferential surface of the rotating shaft 501 meshes with the third gear 504. A shielding shell 506 installed at the upper end of the machine base 1 is rotatably connected to the second connecting column 503 and the rotating shaft 501. Both the third gear 504 and the fourth gear 505 are located inside the shielding shell 506.

[0049] In the actual application of the embodiment of the present invention, when the monoammonium phosphate after drying is discharged from the blanking port 214, it will enter the blanking shell 5. At this time, the rotating roller 211 drives the second connecting column 503 to rotate. The second connecting column 503 drives the third gear 504 to rotate. The third gear 504 drives the fourth gear 505 to rotate. The fourth gear 505 drives the rotating shaft 501 and the pushing plate 502 to rotate. Under the action of the rotation of the pushing plate 502, the monoammonium phosphate entering the blanking shell 5 is quickly pushed obliquely downward, and finally discharged and collected from the output end of the blanking shell 5.

[0050] As Figure 13 、 14 As shown in FIGS. 15, as another preferred embodiment of the present invention, the cooling assembly 6 includes an air box 601, jet ports 604, a filter plate 605 and a discharge pipe 607. The air box 601 is installed at the lower end of the blanking shell 5. The output end of an air pump 602 installed at the upper end of the fixing frame 103 is connected to the air box 601 through a connecting pipe 603. A plurality of jet ports 604 are all installed at the upper end of the air box 601. The jet ports 604 are all inclined. The filter plate 605 is installed at the upper end of the blanking shell 5. A discharge shell 606 is installed at the upper end of the air box 601. The discharge shell 606 is located above the filter plate 605. The discharge pipe 607 is installed at the upper end of the discharge shell 606.

[0051] In the actual application of the embodiment of the present invention, by controlling the operation of the air pump 602, the air pump 602 will transport the gas to the air box 601 through the connecting pipe 603, and finally eject the air through the jet ports 604 to form an air curtain. Since the jet ports 604 are all inclined, when the monoammonium phosphate after drying flows downward and is discharged from the blanking shell 5, the gas will disperse the monoammonium phosphate discharged downward and take away the heat therein. Since there is hot air input above the blanking shell 5 and external natural wind input below the blanking shell 5, the hot air in the blanking shell 5 can only be discharged through the filter plate 605 installed at the upper end of the discharge shell 606, achieving the effect of cooling the monoammonium phosphate. At the same time, the monoammonium phosphate is isolated by the filter plate 605, and the dust generated during the drying process is discharged together with the hot air through the filter plate 605 and finally discharged and collected through the discharge pipe 607.

[0052] In one case of the embodiment of the present invention, the dust generated during the drying process of monoammonium phosphate, which is also a part of monoammonium phosphate, can be collected by filtering and intercepting the hot air when finally discharged through the discharge pipe 607 along with the hot air. This can not only prevent the dust generated during the drying process from spreading in the surrounding environment, but also collect and process it to avoid waste and consumption of materials.

[0053] As Figure 15 and 16 shown, as another preferred embodiment of the present invention, a guide rod 7 is installed in the blanking housing 5. A mounting plate 701 is slidably connected to the circumferential surface of the guide rod 7. A cleaning brush 702 installed at the upper end of the mounting plate 701 is slidably connected to the filter plate 605. A reciprocating lead screw 703 and a connecting rod 704 are rotatably connected in the blanking housing 5. The reciprocating lead screw 703 is threadedly connected to the mounting plate 701. The connecting rod 704 is connected to the rotating shaft 501 through a third sprocket set 705. A third bevel gear 706 is installed on the circumferential surface of the reciprocating lead screw 703. A fourth bevel gear 707 installed on the circumferential surface of the connecting rod 704 meshes with the third bevel gear 706.

[0054] In the actual application of the embodiment of the present invention, when the rotating shaft 501 rotates, the rotating shaft 501 drives the connecting rod 704 to rotate under the action of the third sprocket set 705. The connecting rod 704 drives the reciprocating lead screw 703 to rotate under the action of the third bevel gear 706 and the fourth bevel gear 707, and then drives the mounting plate 701 to reciprocate on the circumferential surface of the guide rod 7, thereby achieving the effect of driving the cleaning brush 702 to reciprocate to clean the filter plate 605 and preventing the filter plate 605 from being blocked when discharging hot air and dust.

[0055] The following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the internal communication of two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0056] Second: In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0057] Finally: The above description is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drying and cooling device for monoammonium phosphate production, comprising a machine base (1), characterized in that: At the upper end of the machine base (1), a drying cylinder (101) and a feeding shell (102) are installed. The feeding shell (102) is installed at the upper end of the drying cylinder (101). A drying component (2) is arranged inside the drying cylinder (101). The drying component (2) includes a material changing mechanism (21) and a drying mechanism (22). The material changing mechanism (21) includes a rotating roller (211), a storage tank (212), and a discharge port (213). The rotating roller (211) is rotatably connected inside the drying cylinder (101). A plurality of the storage tanks (212) are all opened on the circumferential surface of the rotating roller (211). A plurality of the discharge ports (213) are all opened at the front end of the rotating roller (211). A blanking port (214) is opened at the rear end of the drying cylinder (101). The drying mechanism (22) includes a hot air blower (221), a shunt pipe (222), and a wind disc (224). A fixing frame (103) is installed at the lower end of the machine base (1). The hot air blower (221) is installed at the upper end of the fixing frame (103). The shunt pipe (222) is installed inside the rotating roller (211). The output end of the hot air blower (221) is connected to the shunt pipe (222) through a rotating joint (223). A plurality of the wind discs (224) are all installed inside the rotating roller (211). The wind discs (224) are all connected to the output end of the shunt pipe (222). A plurality of air jet nozzles (225) are installed at the front end of the wind disc (224). Exhaust holes (226) are opened on the surfaces of the wind disc (224) and the drying cylinder (101).

2. The drying and cooling device for monoammonium phosphate production according to claim 1, wherein: A driving motor (3) is installed at the upper end of the machine base (1). A driving shaft (301) is installed at the output end of the driving motor (3). A first connecting column (302) is installed at the rear end of the rotating roller (211). The first connecting column (302) is rotatably connected to a rotating seat (303) installed at the upper end of the machine base (1). The first connecting column (302) is connected to the driving shaft (301) through a first sprocket set (304).

3. The drying and cooling device for monoammonium phosphate production according to claim 2, wherein: A driven shaft (305) is rotatably connected inside the feeding shell (102). A plurality of stirring rods (306) are installed on the circumferential surface of the driven shaft (305). The driven shaft (305) is connected to the first connecting column (302) through a second sprocket set (307).

4. The drying and cooling device for monoammonium phosphate production according to claim 1, characterized in that: An internal gear ring (4) is fixedly connected inside the drying cylinder (101). A rotating rod (401) is rotatably connected inside the drying cylinder (101) and the wind disc (224). A plurality of stirring rods (402) and scraping plates (403) are installed on the circumferential surface of the rotating rod (401). First gears (404) installed on the circumferential surface of the rotating rod (401) are all meshed with the internal gear ring (4).

5. A drying and cooling device for monoammonium phosphate production according to claim 4, characterized in that: A rotating frame (405) is installed at the rear end of the rotating roller (211). A driving rod (406) and a driven rod (407) are rotatably connected inside the rotating frame (405). A second gear (408) and a first bevel gear (409) are installed on the circumferential surface of the driving rod (406). The second gear (408) meshes with the internal gear ring (4). A second bevel gear (4010) and a cam (4011) are installed on the circumferential surface of the driven rod (407). The first bevel gear (409) meshes with the second bevel gear (4010). A limiting frame (4012) is installed on the surface of the rotating frame (405). A support ring (4013) is installed on the circumferential surface of the rotating rod (401). A return spring (4014) is installed between the support ring (4013) and the limiting frame (4012). The cam (4011) is slidably connected to the rotating rod (401).

6. The drying and cooling device for monoammonium phosphate production according to claim 1, characterized in that: A blanking shell (5) is installed at the front end of the drying cylinder (101). A cooling component (6) is arranged inside the blanking shell (5). A rotating shaft (501) is rotatably connected inside the blanking shell (5). A pushing plate (502) is installed on the circumferential surface of the rotating shaft (501). A second connecting column (503) is installed at the front end of the rotating roller (211). A third gear (504) is installed on the circumferential surface of the second connecting column (503). A fourth gear (505) installed on the circumferential surface of the rotating shaft (501) meshes with the third gear (504). A shielding shell (506) installed at the upper end of the machine base (1) is rotatably connected to the second connecting column (503) and the rotating shaft (501). The third gear (504) and the fourth gear (505) are both located inside the shielding shell (506).

7. A drying and cooling device for monoammonium phosphate production according to claim 6, characterized in that: The cooling component (6) includes a wind box (601), a jet orifice (604), a filter plate (605), and a discharge pipe (607). The wind box (601) is installed at the lower end of the blanking shell (5). The output end of an air pump (602) installed at the upper end of the fixed frame (103) is connected to the wind box (601) through a connecting pipe (603). A plurality of jet orifices (604) are all installed at the upper end of the wind box (601). The jet orifices (604) are all inclined. The filter plate (605) is installed at the upper end of the blanking shell (5). A discharge shell (606) is installed at the upper end of the wind box (601). The discharge shell (606) is located above the filter plate (605). The discharge pipe (607) is installed at the upper end of the discharge shell (606).

8. A drying and cooling device for monoammonium phosphate production according to claim 7, characterized in that: A guide rod (7) is installed inside the blanking shell (5). A mounting plate (701) is slidably connected to the circumferential surface of the guide rod (7). A cleaning brush (702) installed at the upper end of the mounting plate (701) is slidably connected to the filter plate (605). A reciprocating lead screw (703) and a connecting rod (704) are rotatably connected inside the blanking shell (5). The reciprocating lead screw (703) is in threaded connection with the mounting plate (701). The connecting rod (704) is connected to the rotating shaft (501) through a third sprocket set (705). A third bevel gear (706) is installed on the circumferential surface of the reciprocating lead screw (703). A fourth bevel gear (707) installed on the circumferential surface of the connecting rod (704) meshes with the third bevel gear (706).

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