A spray drying tower for pesticide water-dispersible granules

Abstract

This utility model relates to the field of spray drying tower technology. It provides a spray drying tower for pesticide water-dispersible granules, including a tower body. An atomizer is installed on the inner top wall of the tower body, and an air distributor is installed at the top of the inner wall of the tower body. It also includes a liquid tank, a water pump, a filter box, a fan, a heat source box, and a filtration mechanism. The liquid tank and water pump are located on one side of the tower body. The input end of the water pump is connected to the liquid tank, and the output end of the water pump is connected to the atomizer. The filter box, fan, and heat source box are located on the other side of the tower body. The input end of the fan is connected to the filter box, and the output end of the fan is connected to the input end of the heat source box. The output end of the heat source box is connected to the air distributor. An air inlet is provided on the top side wall of the filter box. The filtration mechanism is located inside the filter box and is used to filter the air entering the filter box. This technical solution addresses the technical problem in the prior art where the filter screen surface is easily clogged by impurities, affecting the air intake effect.

Description

Technical Field

[0001] This utility model relates to the field of spray drying tower technology, specifically to a spray drying tower for pesticide water-dispersible granules. Background Technology

[0002] In the field of pesticide formulation production, water-dispersible granules of pesticides have become one of the important formulations for pesticide processing due to their advantages such as no dust pollution, good flowability, excellent dispersibility, and convenient storage and transportation. Currently, spray drying technology, as a key process for preparing water-dispersible granules of pesticides, is widely used in industrial production.

[0003] In operation, a spray drying tower atomizes liquid feed into micron-sized droplets through an atomizer. Simultaneously, heated air is supplied to the drying chamber via a hot air system. The atomized droplets and the hot air come into contact with each other in parallel or counter-current flow within the drying chamber. Due to the large specific surface area of ​​the droplets, the moisture in the droplets evaporates rapidly in a very short time, and the droplets are dried into solid particles. These particles are then discharged from the bottom of the drying chamber or from collection devices such as cyclone separators. The exhaust gas containing a small amount of fine powder is then purified by a bag filter before being discharged.

[0004] In the process of introducing hot air into the drying chamber, a heater is generally used to heat the air to the required temperature, and then a blower is used to send the hot air into the drying chamber to provide heat and power for the drying process. During the air intake process, the air is generally filtered through a filter screen. However, during continuous use, impurities in the external environment can easily adhere to the surface of the filter screen and cause blockage, thereby affecting the air intake effect of hot air entering the drying chamber. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a spray drying tower for pesticide water-dispersible granules, which solves the technical problem in the prior art that the filter screen surface is easily clogged by impurities, affecting the air intake effect.

[0006] According to one aspect, at least one embodiment of the present invention provides a spray drying tower for water-dispersible granules of pesticides, comprising a tower body, an atomizer installed on the inner top wall of the tower body, an air distributor installed on the top of the inner wall of the tower body, and further comprising a liquid tank, a water pump, a filter box, a fan, a heat source box, and a filtration mechanism. The liquid tank and the water pump are disposed on one side of the tower body, the input end of the water pump is connected to the liquid tank, and the output end of the water pump is connected to the atomizer. The filter box, the fan, and the heat source box are disposed on the other side of the tower body, the input end of the fan is connected to the filter box, the output end of the fan is connected to the input end of the heat source box, and the output end of the heat source box is connected to the air distributor. An air inlet is provided on the top side wall of the filter box, and the filtration mechanism is disposed inside the filter box for filtering the air entering the filter box.

[0007] Preferably, the filtration mechanism includes a first sealing groove, a threaded opening, a filter cylinder, and a cleaning mechanism. The inner top wall of the filter box has an annular first sealing groove, and the threaded opening is located on the inner bottom wall of the filter box. An installation plate is installed on the threaded opening through a threaded connection. A second sealing groove is located on the top side wall of the installation plate. The filter cylinder is disposed inside the filter box, and both ends of the filter cylinder extend into the first sealing groove and the second sealing groove, respectively. The cleaning mechanism is disposed inside the filter cylinder for cleaning the filter cylinder.

[0008] Furthermore, a first sealing ring and a second sealing ring are fixedly provided on the top and bottom sidewalls of the filter cartridge, respectively. The first sealing ring contacts the bottom of the first sealing groove, and the second sealing ring contacts the mounting plate.

[0009] Furthermore, the cleaning mechanism includes a drive groove, a drive disc, a drive block, an air inlet, a cleaning component, and a rotating mechanism. The drive groove is located on the inner top wall of the filter box. The drive disc is rotatably disposed at the bottom of the drive groove. The drive block is disposed on one side of the drive disc. An air inlet pipe is fixedly disposed between the drive disc and the drive block. The top end of the air inlet pipe penetrates the drive disc and extends into the air inlet. The air inlet pipe is rotatably and sealingly connected to the side wall of the air inlet. Multiple air inlets are provided on the side wall of the air inlet pipe. The cleaning component is disposed between the drive disc and the drive block for cleaning the filter cartridge. The rotating mechanism is disposed between the air inlet pipe and the filter box for driving the air inlet pipe to rotate.

[0010] Furthermore, the cleaning component includes a cleaning roller and cleaning bristles. The cleaning roller is rotatably disposed on both sides of the air inlet pipe between the drive disc and the drive block. The cleaning bristles are evenly distributed on the sidewalls of the cleaning roller and are in contact with the inner wall of the filter cartridge.

[0011] Based on the above scheme, the rotating mechanism includes a first cavity, a first gear ring, a first gear, and a first motor. The filter box has the first cavity on one side of the drive groove. The first cavity is connected to the air inlet. The first gear ring is fixedly installed on the outer wall of the air inlet pipe. The first gear is rotatably installed in the first cavity and meshes with the first gear ring. The first motor is installed on the filter box, and the output end of the first motor is fixedly connected to the first gear.

[0012] Based on the above scheme, the side wall of the drive disk is provided with an annular groove, and the drive disk is provided with a second cavity on one side of the cleaning roller. The second cavity is connected to the annular groove. A second gear is rotatably arranged in the second cavity. The second gear is fixedly connected to the cleaning roller. A second toothed ring is fixedly arranged on the side wall of the drive groove. The second toothed ring meshes with the second gear.

[0013] Based on the above scheme, a positioning plate is fixedly installed on the bottom side wall of the mounting plate.

[0014] The beneficial effects of the embodiments of this utility model are as follows:

[0015] 1. In this utility model, by setting up a filtration mechanism, air can be filtered through the filter cylinder, thereby preventing impurities in the external environment from entering the tower and affecting the quality of pesticide water-dispersible granules.

[0016] 2. In this utility model, by setting up a cleaning mechanism, the operation of the first motor can drive the first gear to rotate. At the same time, the meshing of the first gear and the first gear ring drives the air intake pipe, the drive disk and the drive block to rotate, thereby driving the cleaning roller and cleaning bristles to move around the air intake pipe and clean the inner wall of the filter cartridge, thereby improving the filtration effect of the filter cartridge and improving the air intake effect.

[0017] 3. In this utility model, through the meshing of the second gear and the second gear ring, during the rotation of the drive disc, the second gear can be driven to move around the air inlet pipe. At the same time, through the meshing of the second gear and the second gear ring, the cleaning roller is driven to rotate. Thus, the rotation of the cleaning roller can drive the cleaning bristles to move around the cleaning roller, thereby improving the filtration effect of the cleaning bristles on the filter cartridge. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a spray drying tower for pesticide water-dispersible granules in one embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of a spray drying tower for pesticide water-dispersible granules from another perspective in one of the embodiments;

[0021] Figure 3 for Figure 1 A cross-sectional structural schematic diagram of the filter box in the embodiment;

[0022] Figure 4 for Figure 1 A cross-sectional view of the filter cartridge in the embodiment;

[0023] Figure 5 for Figure 1 The embodiment shows a schematic diagram of the cleaning mechanism.

[0024] In the diagram: 1. Tower body; 2. Liquid tank; 3. Water pump; 4. Filter box; 5. Fan; 6. Heat source box; 7. Air inlet; 8. Mounting plate; 9. Second sealing groove; 10. Filter cylinder; 11. Drive plate; 12. Drive block; 13. Air inlet pipe; 14. Air inlet hole; 15. Cleaning roller; 16. First gear ring; 17. First gear; 18. First motor; 19. Second gear; 20. Second gear ring; 21. Positioning plate. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0026] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0027] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] like Figures 1-5The diagram illustrates a spray drying tower for pesticide water-dispersible granules according to an embodiment of the present invention. It includes a tower body 1, an atomizer mounted on the inner top wall of the tower body 1, and an air distributor mounted on the top of the inner wall of the tower body 1. The tower body also includes a liquid tank 2, a water pump 3, a filter box 4, a fan 5, a heat source box 6, and a filtration mechanism. The liquid tank 2 and the water pump 3 are located on one side of the tower body 1. The input end of the water pump 3 is connected to the liquid tank 2, and the output end of the water pump 3 is connected to the atomizer. The filter box 4, the fan 5, and the heat source box 6 are located on the other side of the tower body 1. The input end of the fan 5 is connected to the filter box 4, and the output end of the fan 5 is connected to the input end of the heat source box 6. The output end of the heat source box 6 is connected to the air distributor. An air inlet 7 is provided on the top side wall of the filter box 4. The filtration mechanism is located inside the filter box 4 for filtering the air entering the filter. The air inside the chamber 4 is filtered. A cyclone separator and a bag filter are installed on one side of the tower body 1. The input end of the cyclone separator is connected to the tower body 1, and the outlet end of the cyclone separator is connected to part of the dust collector. A positioning plate 21 is fixedly installed on the bottom side wall of the mounting plate 8. Specifically, the liquid material in the liquid tank 2 can be pumped into the atomizer by the operation of the water pump 3 and atomized in the tower body 1. At the same time, the air in the external environment can be heated by the operation of the fan 5 and the heat source box 6 and then pumped into the tower body 1 through the air distributor. The atomized droplets come into contact with the hot air in the drying chamber in parallel or countercurrent flow. Due to the large specific surface area of ​​the droplets, the water in the droplets evaporates rapidly in a very short time. The droplets are dried into solid particles and finally discharged from the bottom of the drying chamber or the collection device such as the cyclone separator.

[0032] Reference Figures 1-3 The filtration mechanism includes a first sealing groove, a threaded opening, a filter cartridge 10, and a cleaning mechanism. The inner top wall of the filter box 4 has an annular first sealing groove, and the threaded opening is located on the inner bottom wall of the filter box 4. The threaded opening is fitted with a mounting plate 8. The top side wall of the mounting plate 8 has a second sealing groove 9. The filter cartridge 10 is located inside the filter box 4, with both ends of the filter cartridge 10 extending into the first sealing groove and the second sealing groove 9, respectively. The cleaning mechanism is located inside the filter cartridge 10 and is used to clean the filter cartridge 10. The top side wall and the bottom side wall of the filter cartridge 10 are respectively fixedly provided with a first sealing ring and a second sealing ring. The first sealing ring contacts the bottom of the first sealing groove, and the second sealing ring contacts the mounting plate 8. Specifically, the operation of the fan 5 allows air from the outside environment to pass through the air inlet 7 and the filter cartridge 10, and the air is filtered by the filter cartridge 10.

[0033] Reference Figures 3-5The cleaning mechanism includes a drive groove, a drive disc 11, a drive block 12, an air inlet 14, a cleaning component, and a rotating mechanism. The drive groove is located on the inner top wall of the filter box 4. The drive disc 11 is rotatably mounted at the bottom of the drive groove. The drive block 12 is located on one side of the drive disc 11. An air inlet pipe 13 is fixedly mounted between the drive disc 11 and the drive block 12. The top end of the air inlet pipe 13 passes through the drive disc 11 and extends into the air inlet 7. The air inlet pipe 13 is rotatably and sealingly connected to the side wall of the air inlet 7. Multiple air inlets 14 are provided on the side wall of the air inlet pipe 13. The cleaning component is located between the drive disc 11 and the drive block 12 and is used to clean the filter cartridge 10. The rotating mechanism is located between the air inlet pipe 13 and the filter box 4 and is used to drive the air inlet pipe 13 to rotate. The cleaning component includes cleaning rollers 15 and cleaning bristles. Cleaning rollers 15 are rotatably mounted on both sides of the air inlet pipe 13 between the drive disc 11 and the drive block 12. Cleaning bristles are evenly distributed on the side walls of the cleaning rollers 15. The cleaning brush bristles contact the inner wall of the filter cartridge 10. The rotating mechanism includes a first cavity, a first gear ring 16, a first gear 17, and a first motor 18. The filter box 4 has a first cavity on one side of the drive groove, which is connected to the air inlet 7. The first gear ring 16 is fixedly mounted on the outer wall of the air inlet pipe 13. The first gear 17 is rotatably mounted in the first cavity and meshes with the first gear ring 16. The first motor 18 is mounted on the filter box 4, and the output end of the first motor 18 is fixedly connected to the first gear 17. Specifically, the operation of the first motor 18 can drive the first gear 17 to rotate. At the same time, the meshing of the first gear 17 and the first gear ring 16 drives the air inlet pipe 13, the drive disk 11, and the drive block 12 to rotate. This can drive the cleaning roller 15 and the cleaning brush bristles to move around the air inlet pipe 13 and clean the inner wall of the filter cartridge 10, thereby improving the filtration effect and air intake effect of the filter cartridge 10.

[0034] Reference Figures 3-5 The drive disk 11 has an annular groove on its side wall. The drive disk 11 has a second cavity on one side of the cleaning roller 15, which is connected to the annular groove. A second gear 19 is rotatably arranged in the second cavity and is fixedly connected to the cleaning roller 15. A second toothed ring 20 is fixedly arranged on the side wall of the drive groove and meshes with the second gear 19. Specifically, during the rotation of the drive disk 11, the second gear 19 can be driven to move around the air inlet pipe 13. At the same time, the meshing of the second gear 19 and the second toothed ring 20 drives the cleaning roller 15 to rotate. Thus, the rotation of the cleaning roller 15 drives the cleaning bristles to move around the cleaning roller 15, thereby improving the filtration effect of the cleaning bristles on the filter cartridge 10.

[0035] In this embodiment, during use, the operator controls the fan 5 and water pump 3 to operate. The water pump 3 pumps the liquid in the liquid tank 2 into the atomizer, where it is atomized within the tower body 1. Simultaneously, the fan 5 and heat source box 6 heat the ambient air and pump it into the tower body 1 via the air distributor. The atomized droplets come into contact with the hot air in the drying chamber in parallel or counter-current flow. Due to the large specific surface area of ​​the droplets, the water in the droplets evaporates rapidly in a very short time, and the droplets are dried into solid particles, which are eventually discharged from the bottom of the drying chamber or a collection device such as a cyclone separator. During the air intake process, the operator controls the first motor 18 to operate, which drives the first gear 17 to rotate. Simultaneously, the first gear 17 interacts with the first gear ring 16... The meshing drives the intake pipe 13, drive disc 11, and drive block 12 to rotate, thereby driving the cleaning roller 15 and cleaning bristles to move around the intake pipe 13 and clean the inner wall of the filter cartridge 10, thus improving the filtration effect and air intake effect of the filter cartridge 10. During the rotation of the drive disc 11, it can drive the second gear 19 to move around the intake pipe 13. At the same time, the meshing of the second gear 19 and the second gear ring 20 drives the cleaning roller 15 to rotate, thereby driving the cleaning bristles to move around the cleaning roller 15, thus improving the filtration effect of the cleaning bristles on the filter cartridge 10. After the filter cartridge 10 reaches the end of its service life or fine impurities enter the filter cartridge 10, the positioning disc 21 can be turned to remove the mounting disc 8 from the threaded hole and the filter cartridge 10 can be replaced.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A spray drying tower for water-dispersible granules of pesticides, comprising a tower body (1), wherein an atomizer is installed on the inner top wall of the tower body (1), and an air distributor is installed at the top of the inner wall of the tower body (1), characterized in that, Also includes: Liquid tank (2) and water pump (3) are provided on one side of the tower body (1). The input end of the water pump (3) is connected to the liquid tank (2), and the output end of the water pump (3) is connected to the atomizer. The filter box (4), fan (5) and heat source box (6) are located on the other side of the tower body (1). The input end of the fan (5) is connected to the filter box (4), the output end of the fan (5) is connected to the input end of the heat source box (6), and the output end of the heat source box (6) is connected to the air distributor. An air inlet (7) is provided on the top side wall of the filter box (4). A filtration mechanism, disposed within the filter box (4), is used to filter the air entering the filter box (4). The filtration mechanism includes: The first sealing groove is provided on the inner top wall of the filter box (4). The threaded opening is located on the inner bottom wall of the filter box (4). The threaded opening is fitted with an installation plate (8) by threaded engagement. The top side wall of the installation plate (8) is provided with a second sealing groove (9). A filter cartridge (10) is disposed inside the filter box (4), and both ends of the filter cartridge (10) extend into the first sealing groove and the second sealing groove (9) respectively. A cleaning mechanism is disposed inside the filter cylinder (10) for cleaning the filter cylinder (10). A first sealing ring and a second sealing ring are fixedly disposed on the top and bottom side walls of the filter cylinder (10), respectively. The first sealing ring contacts the bottom of the first sealing groove, and the second sealing ring contacts the mounting plate (8). The cleaning mechanism includes: A drive channel is formed on the inner top wall of the filter box (4); A drive disk (11) is rotatably disposed at the bottom of the drive groove; A drive block (12) is disposed on one side of the drive disk (11). An air inlet pipe (13) is fixedly disposed between the drive disk (11) and the drive block (12). The top end of the air inlet pipe (13) passes through the drive disk (11) and extends into the air inlet (7). The air inlet pipe (13) is rotatably and sealingly connected to the side wall of the air inlet (7). Air inlet (14), and multiple air inlets (14) are provided on the side wall of the air inlet pipe (13). A cleaning component is disposed between the drive disk (11) and the drive block (12) for cleaning the filter cartridge (10); A rotating mechanism is disposed between the air intake pipe (13) and the filter box (4) for driving the air intake pipe (13) to rotate. The cleaning assembly includes: Cleaning rollers (15) are rotatably arranged on both sides of the air inlet pipe (13) between the drive disk (11) and the drive block (12). The cleaning brush bristles are evenly distributed on the sidewall of the cleaning roller (15), and the cleaning brush bristles are in contact with the inner wall of the filter cylinder (10). The rotating mechanism includes: The first cavity is provided on one side of the drive groove of the filter box (4), and the first cavity is connected to the air inlet (7); The first toothed ring (16) is fixedly disposed on the outer wall of the air intake pipe (13); The first gear (17) is rotatably disposed in the first cavity and meshes with the first gear ring (16); The first motor (18) is mounted on the filter box (4), and the output end of the first motor (18) is fixedly connected to the first gear (17).

2. The spray drying tower for pesticide water-dispersible granules according to claim 1, characterized in that, The drive disk (11) has an annular groove on its side wall. The drive disk (11) has a second cavity on one side of the cleaning roller (15). The second cavity is connected to the annular groove. A second gear (19) is rotatably arranged in the second cavity. The second gear (19) is fixedly connected to the cleaning roller (15). A second toothed ring (20) is fixedly arranged on the side wall of the drive groove. The second toothed ring (20) meshes with the second gear (19).

3. The spray drying tower for pesticide water-dispersible granules according to claim 2, characterized in that, The mounting plate (8) is fixedly provided with a positioning plate (21) on its bottom side wall.

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