Continuous mesotrione drying device

Abstract

The invention provides a mesotrione continuous drying device, and relates to the field of drying devices. The mesotrione continuous drying device comprises a circulating air feeder and further comprises a cyclone separation assembly, a multi-layer filtering assembly, a heating assembly and a continuous drying assembly, the circulating air feeder conveys air to the heating assembly, the heating assembly conveys hot air into the continuous drying assembly, the continuous drying assembly conveys materials into the cyclone separation assembly, and the cyclone separation assembly conveys the materials into the multi-layer filtering assembly. And then the air is led to the multi-layer filtering assembly until the circulating air feeder is connected again. According to the mesotrione continuous drying device, by arranging the multiple layers of filtering assemblies, the effect of separating mesotrione in dried air can be achieved, waste of raw materials is avoided, the dried air can be prevented from polluting the environment, by arranging the continuous drying assembly, mesotrione can be pumped away by circulating air and then separated through the cyclone separator, and the mesotrione can be continuously dried. And the effect of drying mesotrione in all directions can be achieved until the drying requirement is met.

Description

Technical Field

[0001] The invention relates to the field of drying devices, in particular to a mesotrione continuous drying device. Background Art

[0002] Mesotrione is an organic compound with the molecular formula C14H13NO7S. It is a benzoylcyclohexanedione herbicide and an effective competitive hydroxyphenylpyruvate dioxygenase inhibitor. During the drying process of mesotrione, the dried material will be lost along with the drying medium transmission and will be discharged as waste gas, which not only pollutes the environment but also causes waste of resources. Traditional dryer drying equipment has poor drying effect and requires multiple cycles of raw materials.

[0003] For example, Chinese patent publication number: CN218915583U discloses a mesotrione continuous drying device, including a workbench, on which are installed a positive pressure silo, a drying main unit, a drying tower, a screw feeder, a heat exchanger, a cyclone separator, a dry product silo, a material collecting auger, a bag dust collector, a condenser, a storage tank, a condensation storage tank, and an induced draft fan. The positive pressure silo is located directly above the screw feeder, and one end of the screw feeder is arranged inside the drying main unit. The utility model adopts inert gas as a drying medium, thereby avoiding the oxidation problem of mesotrione during the drying process. The dried product is packaged after being cooled, thereby avoiding the oxidation problem of mesotrione after coming out of the drying system due to the high temperature. The inert medium is recycled in the drying system, thereby reducing the drying cost. A crushing and grading device is used in the drying process to meet the fineness requirement.

[0004] In this scheme, when the heated gas is used to dry methyl mesotrione, there may be a problem of incomplete drying, and the hot gas cannot pass through the mesotrione evenly. In addition, if a cyclone separator and a bag filter are used to separate the mesotrione, there will still be a problem of particle escape. If the filtering effect is good, there will be a problem of wind being blocked. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a mesotrione continuous drying device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a mesotrione continuous drying device, comprising a circulating blower, a cyclone separation component, a multi-layer filtering component, a heating component and a continuous drying component, wherein the circulating blower delivers wind to the heating component, the heating component delivers hot air to the continuous drying component, the continuous drying component delivers the material to the cyclone separation component, and then to the multi-layer filtering component until the circulating blower is connected again;

[0007] The multi-layer filter assembly includes a filter tank, the bottom of which is provided with a discharge port A with a valve, the side of which is connected to the exhaust end of the cyclone separation assembly by a curved pipe, and the top of which is connected to the air inlet end of the circulating blower;

[0008] It also includes an air extraction pipe, which is fixed to the upper end of the filter tank, and the two are internally connected;

[0009] A conical disk, with its tip facing downward, and a leakage hole A penetrating vertically is provided in the center of the conical disk, and a plurality of conical disks are provided, arranged vertically and fixed inside the filter tank, and the leakage holes A of the plurality of conical disks are staggered;

[0010] There are multiple conical filters, which are arranged up and down, and the multiple conical filters are fixedly connected to each other. Except for the conical filter at the top, the middle positions of the remaining conical filters are all provided with leakage holes B. The connection between the elbow and the filter tank is between the conical filter at the bottom and the conical disk at the top.

[0011] There are multiple floating discs, which are arranged and fixed together in an up-and-down manner. The multiple floating discs are located in the exhaust pipe and slide up and down relative to the exhaust pipe. The floating discs are connected to the conical filter screen by a suspension rod. The floating discs are provided with multiple air holes A that penetrate up and down. The inner wall of the upper end of the exhaust pipe is provided with a limit ring for preventing the floating disc from moving up too much.

[0012] Preferably, a plurality of strip-shaped protrusions are fixedly provided on the inner wall of the air extraction pipe, and grooves cooperating with the strip-shaped protrusions are provided on the sides of the floating plate, and the strip-shaped protrusions are used to limit the floating plate to slide only up and down relative to the air extraction pipe.

[0013] Preferably, the cyclone separation assembly includes a cyclone separator, one end of the curved pipe away from the filter tank is connected and communicated with the upper end of the cyclone separator, an air inlet pipe is installed at the side cut corner of the cyclone separator, and the other end of the air inlet pipe is connected to the continuous drying assembly;

[0014] The collecting bucket is sealed and fixed at the bottom of the cyclone separator.

[0015] Preferably, a discharge port B with a valve is installed at the bottom end of the aggregate barrel.

[0016] Preferably, the continuous drying assembly comprises a drying barrel, and one end of the air inlet pipe away from the cyclone separator is connected to the side wall of the drying barrel and communicates with the interior thereof; a feed port with a valve is installed at the upper end of the drying barrel;

[0017] The bottom shell is fixed on the bottom end of the drying barrel. The interior of the bottom shell is a hollow structure, and a plurality of air holes B are provided on the side of the bottom shell.

[0018] The hot air pipe is inserted from the upper end of the drying barrel and fixed to the bottom shell, and the hot air pipe is connected to the hollow structure inside the bottom shell;

[0019] The motor is fixed at the bottom of the bottom shell, and its output shaft passes through the center of the bottom shell. The output shaft of the motor is equipped with a plurality of blades.

[0020] Preferably, the bottom shell is a conical structure, with the conical tip of the bottom shell facing downward, and the output shaft of the motor passes through the cone center.

[0021] Preferably, the heating assembly includes a heating barrel, a long tube, a short tube and a heating coil. The end of the hot air tube away from the drying barrel is connected to the long tube. The long tube and the short tube are both plugged into the heating barrel. The bottom end of the long tube in the heating barrel is below the bottom end of the short tube. There are multiple heating coils, which are fixed in parallel in the heating barrel from top to bottom. The heating coils are sleeved on the long tube and the short tube. The end of the short tube away from the heating barrel is connected to the air outlet end of the circulating blower.

[0022] Preferably, it also includes an observation component, which includes an observation barrel and two conducting tubes, both of which are sealed and inserted into the observation barrel, one of the conducting tubes is connected to the exhaust pipe at one end away from the observation barrel, and the other conducting tube is connected to the air inlet end of the circulating blower at one end away from the observation barrel.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The mesotrione continuous drying device is provided with a multi-layer filtering assembly. The hot air after cyclone separation still contains tiny mesotrione materials. When exhausting, multiple conical filters can achieve the effect of filtering dust. The isolated dust will fall onto the conical disk until it falls from the leak hole A to the bottom of the conical disk. Since multiple conical disks are provided and staggered, the fallen dust is difficult to be brought to the conical filter by wind again. The exhaust pipe is in a negative pressure exhaust state, so the floating disk inside it will be lifted up when exhausting. When the floating plate is moved up, the dust blocked on the conical filter will be shaken off, and the dust on the lower conical filter can be discharged downward from the leakage hole B in the center. The discharged dust is isolated by the conical plate and is not easy to return to the conical filter again, thereby achieving the effect of separating and drying mesotrione in the air, avoiding the waste of raw materials and preventing the dried air from polluting the environment.

[0025] 2. The mesotrione continuous drying device is provided with a continuous drying component. Mesotrione is directly put into the drying barrel. Since the bottom shell can spray hot air, mesotrione can be dried in the drying barrel. After drying, the motor drives the blade to crush the mesotrione. The crushed particles can be dried again by the hot air blown out from the air hole B on the bottom shell. Therefore, when gradually crushed, large particles are changed into small dust particles, which are all surrounded by hot air until the crushed particles are small enough to be sucked away by the circulating air, and then separated by the cyclone separator, so that the effect of drying mesotrione in all directions can be achieved until the drying requirements are met.

[0026] 3. The mesotrione continuous drying device is provided with a heating component. Since the wind force is circulated, the drying air whose heat is taken away by the mesotrione can be heated again by the heating component. After the heating, the moisture in the drying gas will evaporate and be discharged. Since the gas is heated each time when drying the mesotrione, a better drying effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a top view of the structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the cyclone separation assembly of the present invention;

[0030] Figure 4 It is a structural diagram of the multi-layer filter assembly of the present invention;

[0031] Figure 5 For the present invention Figure 4 A magnified view of a local area in ;

[0032] Figure 6 This is a disassembled diagram of the multi-layer filter assembly of the present invention;

[0033] Figure 7 It is a partial structural diagram of the multi-layer filter assembly of the present invention;

[0034] Figure 8 It is a structural diagram of the continuous drying component of the present invention;

[0035] Fig. 9 It is a partial structural diagram of the continuous drying component of the present invention;

[0036] Fig.10 This is a structural diagram of the heating component of the present invention.

[0037] In the figure: 1. circulating air blower; 2. cyclone separation assembly; 201. cyclone separator; 202. air inlet pipe; 203. collecting barrel; 204. discharge port B; 3. multi-layer filter assembly; 301. filter tank; 302. discharge port A; 303. elbow; 304. exhaust pipe; 305. conical disk; 306. leakage hole A; 307. conical filter screen; 308. leakage hole B; 309. floating disk; 310. suspension rod; 311. 11. Air hole A; 312. Limiting ring; 313. Strip protrusion; 4. Heating component; 401. Heating barrel; 402. Long tube; 403. Short tube; 404. Heating ring; 5. Continuous drying component; 501. Drying barrel; 502. Feeding port; 503. Bottom shell; 504. Air hole B; 505. Hot air pipe; 506. Motor; 507. Blade; 6. Observation component; 601. Observation barrel; 602. Conducting pipe. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] like Figure 1-10 As shown, a mesotrione continuous drying device includes a circulating air supply fan 1, a cyclone separation component 2, a multi-layer filter component 3, a heating component 4 and a continuous drying component 5. The circulating air supply fan 1 transmits wind to the heating component 4, the heating component 4 sends hot air to the continuous drying component 5, and the continuous drying component 5 sends the material to the cyclone separation component 2, and then to the multi-layer filter component 3 until the circulating air supply fan 1 is connected again;

[0043] The multi-layer filter assembly 3 includes a filter tank 301, a discharge port A302 with a valve is provided at the bottom of the filter tank 301, a side of the filter tank 301 is connected to the exhaust end of the cyclone separation assembly 2 by a curved pipe 303, and a top of the filter tank 301 is connected to the air inlet end of the circulating blower 1;

[0044] It also includes an air extraction pipe 304, which is fixed to the upper end of the filter tank 301, and the two are internally connected;

[0045] The conical disk 305 has a tip facing downward, and a leak hole A306 is provided in the center of the conical disk 305 and runs through it from top to bottom. The conical disk 305 is provided with a plurality of them, which are arranged up and down and fixed inside the filter tank 301, and the leak holes A306 of the plurality of conical disks 305 are staggered.

[0046] There are multiple conical filter screens 307, which are arranged vertically and fixedly connected to each other. Except for the top conical filter screen 307, the middle positions of the remaining conical filter screens 307 are all provided with leakage holes B308. The connection between the elbow 303 and the filter tank 301 is between the bottom conical filter screen 307 and the top conical disk 305.

[0047] There are multiple floating discs 309, which are arranged vertically and fixed together. The multiple floating discs 309 are in the exhaust pipe 304 and slide up and down relative to the exhaust pipe 304. The floating discs 309 and the conical filter screen 307 are connected by a suspension rod 310. The floating discs 309 are provided with multiple air holes A311 that penetrate vertically. The inner wall of the upper end of the exhaust pipe 304 is provided with a limiting ring 312 for preventing the floating discs 309 from moving upward excessively.

[0048] The circulating blower 1 is a high-pressure vortex air pump, which can realize the circulation flow of the entire gas route and can operate smoothly in a dusty gas environment. The discharge port A302 can be opened manually and is used for discharging when opened. It can be opened after the circulating blower 1 is shut down. The conical filter 307 is a conical filter cloth, and each layer is provided with different meshes. The raw material particles will be stuck in the mesh when passing through the conical filter 307, and the conical disk 305 can be made of stainless steel and must meet a certain degree of smoothness. The dried particles can easily roll to the position of the leak hole B308 on the conical disk 305.

[0049] The inner wall of the air extraction pipe 304 is fixed with a plurality of strip-shaped protrusions 313 , and the sides of the floating plate 309 are provided with grooves that cooperate with the strip-shaped protrusions 313 . The strip-shaped protrusions 313 are used to limit the floating plate 309 to only slide up and down relative to the air extraction pipe 304 .

[0050] The size of the groove of the floating disk 309 is larger than that of the strip-shaped protrusion 313 , so there is a small friction force between the two, so that the floating disk 309 floats up under the action of negative pressure.

[0051] The cyclone separation assembly 2 includes a cyclone separator 201, one end of the elbow 303 away from the filter tank 301 is connected and communicated with the upper end of the cyclone separator 201, an air inlet pipe 202 is installed at the side cut corner of the cyclone separator 201, and the other end of the air inlet pipe 202 is connected to the continuous drying assembly 5;

[0052] The collecting barrel 203 is sealed and fixed at the bottom of the cyclone separator 201 .

[0053] A discharge port B204 with a valve is installed at the bottom of the collecting barrel 203.

[0054] The raw material particles separated by the cyclone separator 201 will fall into the collecting barrel 203, and the bottom of the collecting barrel 203 can be opened to discharge materials after the circulating blower 1 is stopped.

[0055] The continuous drying assembly 5 includes a drying barrel 501, and one end of the air inlet pipe 202 away from the cyclone separator 201 is connected to the side wall of the drying barrel 501 and communicates with the interior thereof; a feed port 502 with a valve is installed at the upper end of the drying barrel 501;

[0056] The bottom shell 503 is fixed on the bottom end of the drying barrel 501. The interior of the bottom shell 503 is a hollow structure, and a plurality of air holes B504 are provided on the side of the bottom shell 503.

[0057] The hot air pipe 505 is inserted from the upper end of the drying barrel 501 and fixed to the bottom shell 503, and the hot air pipe 505 is connected to the hollow structure inside the bottom shell 503;

[0058] The motor 506 is fixed at the bottom of the bottom shell 503 , and its output shaft passes through the center of the bottom shell 503 . The output shaft of the motor 506 is installed with a plurality of blades 507 .

[0059] The upper feed port 502 is used to add methyl mesotrione to be dried. After adding, the feed port 502 can be covered with a sealing cover. The bottom shell 503 seals the bottom position of the drying barrel 501. The hot air pipe 505 can heat the bottom shell 503, and hot air can be ejected from the air hole B504 of the bottom shell 503 to act on the mesotrione.

[0060] The bottom shell 503 is a conical structure, and the conical tip of the bottom shell 503 faces downward, and the output shaft of the motor 506 passes through the center of the cone.

[0061] Mesotrione will gather toward the center of the bottom shell 503 and after gathering, it will be broken by the blade 507 driven by the motor 506.

[0062] The heating assembly 4 includes a heating barrel 401, a long tube 402, a short tube 403 and a heating coil 404. The end of the hot air pipe 505 away from the drying barrel 501 is connected to the long tube 402. The long tube 402 and the short tube 403 are both plugged into the heating barrel 401. The bottom end of the long tube 402 in the heating barrel 401 is below the bottom end of the short tube 403. There are multiple heating coils 404, which are fixed in parallel in the upper and lower parts of the heating barrel 401. The heating coils 404 are sleeved on the long tube 402 and the short tube 403. The end of the short tube 403 away from the heating barrel 401 is connected to the air outlet end of the circulating blower 1.

[0063] The heating coil 404 is a resistive heating tube installed in the heating barrel 401. The cable passes through the heating barrel 401. The heating coil 404 is powered by external electricity. A heat preservation structure can be set in the heating barrel 401. The short tube 403 and the long tube 402 can improve the efficiency of heat transfer. The heating barrel 401 is also equipped with a temperature sensor, a temperature gauge, and an electromagnetic steam valve for discharging the water vapor evaporated from the dry gas.

[0064] It also includes an observation component 6, which includes an observation barrel 601 and two conducting tubes 602. The two conducting tubes 602 are sealed and inserted into the observation barrel 601. One end of the conducting tube 602 away from the observation barrel 601 is connected to the exhaust pipe 304, and the other end of the conducting tube 602 away from the observation barrel 601 is connected to the air inlet end of the circulating blower 1.

[0065] The observation barrel 601 is provided with a glass observation window, which can be used to observe the precipitated raw materials, thereby judging the filtering condition of the particles in the previous process and the raw material particles entering the circulating blower 1.

[0066] When in use, the circulating blower 1 can supply air to the heating component 4, and the heating component 4 can heat the drying gas, and the methyl mesotrione to be dried is put into the drying barrel 501, and the bottom shell 503 at the bottom thereof will spray hot air, so the mesotrione can be dried in the drying barrel 501. After drying, the motor 506 drives the blade 507 to crush the mesotrione, and the crushed particles can be dried again by the hot air blown out from the air hole B504 on the bottom shell 503, so when gradually crushed, large particles change into small dust particles, all of which are surrounded by hot air, until the crushed particles are small enough and can be sucked away by the circulating air under the action of the circulating blower 1;

[0067] The raw material particles after being sucked away are separated and settled by the cyclone separator 201 in the cyclone separation component 2. The settled raw materials will be accumulated in the collection bucket 203 and discharged intermittently. The raw materials with smaller particles will enter the multi-layer filter component 3.

[0068] After the cyclone separation, the hot air still contains tiny mesotrione materials. When the air is exhausted, multiple conical filters 307 can filter the dust. The isolated dust will fall onto the conical disk 305 until it falls from the leak hole A306 to the bottom of the conical disk 305. Since multiple conical disks 305 are provided and staggered, the fallen dust is difficult to be brought to the conical filter 307 by the wind again. The exhaust pipe 304 is in a negative pressure exhaust state, so when the air is exhausted, the inside The floating disk 309 at the bottom will move up, and because the conical filter 307 has a certain weight, and the floating disk 309 is also provided with an air hole A311, the floating disk 309 will fall after moving up, and can achieve the up-and-down conversion action. When changing up and down, the dust blocked on the conical filter 307 will be shaken off, and the dust on the conical filter 307 below can be discharged downward from the leakage hole B308 in the center. The discharged dust is isolated by the conical disk 305 and is not easy to return to the conical filter 307 again.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0070] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mesotrione continuous drying device, comprising a circulating blower (1), characterized in that: It also includes a cyclone separation component (2), a multi-layer filtering component (3), a heating component (4) and a continuous drying component (5), wherein the circulating air supply fan (1) delivers wind to the heating component (4), the heating component (4) delivers hot air to the continuous drying component (5), the continuous drying component (5) delivers the material to the cyclone separation component (2), and then to the multi-layer filtering component (3) until it is connected to the circulating air supply fan (1) again; The multi-layer filter assembly (3) comprises a filter tank (301), the bottom end of which is provided with a discharge port A (302) with a valve, the side of which is connected to the air extraction end of the cyclone separation assembly (2) by means of a curved pipe (303), and the top end of which is connected to the air inlet end of the circulating blower (1); It also includes an air extraction pipe (304) fixed to the upper end of the filter tank (301), and the two are internally connected; The conical disk (305) has a tip facing downward, and a leakage hole A (306) penetrating vertically is provided at the center of the conical disk (305). A plurality of conical disks (305) are arranged vertically and fixed inside the filter tank (301), and the leakage holes A (306) of the plurality of conical disks (305) are staggered. There are multiple conical filter screens (307) arranged vertically and fixedly connected to each other. Except for the conical filter screen (307) at the top, the remaining conical filter screens (307) are all provided with leakage holes B (308) in the middle. The connection between the elbow (303) and the filter tank (301) is located between the conical filter screen (307) at the bottom and the conical plate (305) at the top. There are multiple floating discs (309), which are arranged vertically and fixed together. The multiple floating discs (309) are located in the exhaust pipe (304) and slide up and down relative to the exhaust pipe (304). The floating discs (309) and the conical filter screen (307) are connected by a suspension rod (310). The floating discs (309) are each provided with multiple air holes A (311) that penetrate vertically. The inner wall of the upper end of the exhaust pipe (304) is provided with a limiting ring (312) for preventing the floating discs (309) from moving upward excessively.

2. A mesotrione continuous drying device according to claim 1, characterized in that: The inner wall of the air extraction pipe (304) is fixedly provided with a plurality of strip-shaped protrusions (313), and the sides of the floating plate (309) are provided with grooves matching with the strip-shaped protrusions (313). The strip-shaped protrusions (313) are used to restrict the floating plate (309) to slide up and down only relative to the air extraction pipe (304).

3. A mesotrione continuous drying device according to claim 1, characterized in that: The cyclone separation component (2) comprises a cyclone separator (201), one end of the curved pipe (303) away from the filter tank (301) is connected to and communicates with the upper end of the cyclone separator (201), an air inlet pipe (202) is installed at the side cut corner of the cyclone separator (201), and the other end of the air inlet pipe (202) is connected to the continuous drying component (5); The collecting barrel (203) is sealed and fixed on the bottom of the cyclone separator (201).

4. A mesotrione continuous drying device according to claim 3, characterized in that: A discharge port B (204) with a valve is installed at the bottom of the collecting barrel (203).

5. The mesotrione continuous drying device according to claim 3, characterized in that: The continuous drying assembly (5) comprises a drying barrel (501), and one end of the air inlet pipe (202) away from the cyclone separator (201) is connected to the side wall of the drying barrel (501) and communicates with the interior thereof; a feed port (502) with a valve is installed at the upper end of the drying barrel (501); The bottom shell (503) is fixed on the bottom end of the drying barrel (501), the interior of the bottom shell (503) is a hollow structure, and a plurality of air holes B (504) are provided on the side of the bottom shell (503); A hot air pipe (505) is inserted from the upper end of the drying barrel (501) and fixed to the bottom shell (503), and the hot air pipe (505) is connected to the hollow structure inside the bottom shell (503); The motor (506) is fixed at the bottom of the bottom shell (503), and its output shaft passes through the center of the bottom shell (503). The output shaft of the motor (506) is installed with a plurality of blades (507).

6. A mesotrione continuous drying device according to claim 5, characterized in that: The bottom shell (503) is a conical structure, with the conical tip of the bottom shell (503) facing downward, and the output shaft of the motor (506) passes through the center of the cone.

7. The mesotrione continuous drying device according to claim 5, characterized in that: The heating assembly (4) comprises a heating barrel (401), a long tube (402), a short tube (403) and a heating coil (404); one end of the hot air pipe (505) away from the drying barrel (501) is connected to the long tube (402); the long tube (402) and the short tube (403) are both plugged into the heating barrel (401); the bottom end of the long tube (402) in the heating barrel (401) is below the bottom end of the short tube (403); a plurality of heating coils (404) are provided and fixed in parallel in the heating barrel (401); the heating coils (404) are sleeved on the long tube (402) and the short tube (403); one end of the short tube (403) away from the heating barrel (401) is connected to the air outlet of the circulating air blower (1).

8. The mesotrione continuous drying device according to claim 1, characterized in that: The device also comprises an observation assembly (6), the observation assembly (6) comprising an observation barrel (601) and two conducting tubes (602), the two conducting tubes (602) being both sealed and inserted into the observation barrel (601), one end of the conducting tube (602) being away from the observation barrel (601) being connected to the exhaust pipe (304), and the other end of the conducting tube (602) being away from the observation barrel (601) being connected to the air inlet end of the circulating air supply fan (1).

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