An atomizing device for a spray dryer

Abstract

The present invention discloses an atomization device for a spray dryer, which relates to the technical field of atomization devices and includes: a bracket, on the top surface of the bracket is fixedly installed a drying tower, on one side of the bracket is fixedly installed a blower, on one side of the blower is fixedly installed a heater, on one side of the heater is provided an air supply pipe, the other end of the air supply pipe communicates with the inside of the drying tower, on one side of the drying tower is fixedly installed a cyclone separator, and on one side of the cyclone separator is fixedly installed a collection bottle; an atomization mechanism, the atomization mechanism is arranged on the drying tower, and the atomization mechanism includes: an atomizer, the atomizer is arranged on the top surface of the drying tower, and the nozzle on the bottom surface of the atomizer is located on the top surface inside the drying tower. Through the coordinated operation of the material conveying component, the detection component, the dilution component and the reflux component, the precise control and adjustment of the viscosity of the material liquid are realized, ensuring the smooth progress of the spray drying process and the quality of the final product.

Description

Technical Field

[0001] The present invention relates to the technical field of atomization devices, and particularly to an atomization device for a spray dryer. Background Art

[0002] Spray drying is an efficient and widely used drying technology. Its principle is to use an atomizer to disperse liquid materials into countless tiny droplets, and these droplets conduct rapid and sufficient heat and mass transfer with hot air in a specific drying chamber. The surface area of the droplets increases significantly, greatly improving the evaporation rate, enabling the moisture in the materials to be quickly vaporized within a short time, and thus being carried away by the drying medium, usually hot air, to finally obtain a dried product. The atomization device plays a crucial role in the spray dryer. It determines the size, shape, and distribution of the droplets, thereby affecting the drying rate, product quality, and energy utilization efficiency.

[0003] Traditional spray dryers often rely on fixed material transportation and atomization systems in their designs. This mode ignores the complexity of the material liquid during dynamic transportation. The material liquid often experiences changes in concentration gradient, temperature gradient, and even pressure gradient along the transportation path. The existence of these gradients deeply affects the viscosity characteristics of the material liquid. Traditional spray dryers generally lack the functions of real-time monitoring and flexible adjustment of these key parameters, especially the viscosity of the material liquid. When the viscosity of the material liquid abnormally increases due to the above gradient effects, first of all, the increase in viscosity directly weakens the atomization effect, resulting in uneven droplet size distribution. The larger droplets are difficult to effectively evaporate within a short time, thereby reducing the overall drying efficiency. This not only prolongs the production cycle but may also damage the atomization device due to overheating. More seriously, during the transportation and atomization of high-viscosity material liquids, it is more likely to form deposits and adhesions inside the equipment. Over time, this will not only increase the maintenance difficulty and cost of the equipment but may also cause blockage failures, forcing the production line to interrupt operation, resulting in a waste of valuable production time and economic losses.

[0004] Therefore, based on the above search and in combination with the existing technology, an atomization device for a spray dryer is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an atomization device for a spray dryer to solve the problems raised in the above background art.

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

[0007] An atomizing device for a spray dryer, comprising: a bracket, on the top surface of which a drying tower is fixedly installed; on one side of the bracket, a blower is fixedly installed; on one side of the blower, a heater is fixedly installed; on one side of the heater, an air supply pipe is provided, and the other end of the air supply pipe communicates with the inside of the drying tower; on one side of the drying tower, a cyclone separator is fixedly installed; on one side of the cyclone separator, a collection bottle is fixedly installed; an atomizing mechanism, which is arranged on the drying tower and includes: an atomizer, which is arranged on the top surface of the drying tower, and the nozzle on the bottom surface of the atomizer is located on the top surface inside the drying tower. The atomizing mechanism also includes a material conveying component and a detection component.

[0008] Preferably, the material conveying component includes: a housing, which is fixedly installed on the side wall of the atomizer; a cavity is formed inside the housing; on the top surface of the housing, a top plate is fixedly installed; on the top plate, a liquid delivery pipe is provided, one end of the liquid delivery pipe is connected to a pump for conveying material liquid, and the other end extends through the top surface of the top plate into the cavity.

[0009] Preferably, the detection component includes: a first fixing plate, which is fixedly installed on the inner wall of the cavity; a second fixing plate is fixedly installed below the first fixing plate; a partition is fixedly installed between the first fixing plate and the second fixing plate; a connecting plate is fixedly installed on the side wall of the partition; above the first fixing plate, a moving block is provided; a through hole is opened on the top surface of the moving block; a cylinder is arranged on the moving block, the top surface of the cylinder is fixedly connected to the bottom surface of the moving block, and the other end extends through the top surface of the first fixing plate to the upper side of the connecting plate; an electric push rod is fixedly installed on the top surface of the connecting plate, and the output shaft of the electric push rod is connected to the bottom surface of the cylinder; the inside of the cylinder communicates with the through hole.

[0010] Preferably, the detection component further includes: a positive displacement flowmeter, which is fixedly installed on the top surface of the second fixing plate and is located below the electric push rod; a first connecting pipe is arranged on the positive displacement flowmeter, one end of the first connecting pipe communicates with the inside of the cylinder, and the other end communicates with the inside of the positive displacement flowmeter; on one side of the positive displacement flowmeter, a second connecting pipe is provided, and the other end of the second connecting pipe extends through the top surface of the second fixing plate to the upper side of the bottom surface of the cavity. The detection component also includes a dilution component and a reflux component.

[0011] Preferably, the dilution component includes: a first infusion pump, which is fixedly installed on the top surface of the second fixing plate and is located on one side of the positive displacement flowmeter; an inlet pipe is arranged on the first infusion pump, one side of the inlet pipe is connected to a dilution liquid storage tank, and the other side is connected to one side of the first infusion pump; an outlet pipe is arranged on one side of the second fixing plate.

[0012] Preferably, the diluting member further includes: a fixing column fixedly installed on the bottom surface of the cavity. A plurality of leakage holes are formed in the side wall of the fixing column. A stirring blade is rotatably connected inside the fixing column. The other end of the liquid outlet pipe penetrates through the top surface of the second fixing plate and extends into the fixing column through the side wall of the fixing column.

[0013] Preferably, the reflux member includes: a mounting plate fixedly installed on the side wall of the housing. A second infusion pump is fixedly installed on the top surface of the mounting plate. A first hose is arranged on one side of the second infusion pump. A second hose is arranged on the other side of the second infusion pump. The other side of the first hose penetrates through the side wall of the housing and extends below the second fixing plate. The other side of the second hose penetrates through the housing and the side wall of the moving block and extends into the through hole.

[0014] Preferably, a liquid leakage hole is formed in the bottom surface of the cavity and is communicated with the inside of the atomizer. A switch member is arranged on one side of the liquid leakage hole. The switch member includes: a limiting plate. A sliding groove is formed in the bottom surface of the limiting plate. A sealing plate is slidably connected to the inner wall of the sliding groove. A spring is arranged on the surface of the sealing plate adjacent to the sliding groove. A rope is fixedly installed on the side wall of the sealing plate away from the spring. The other end of the rope is fixedly connected to the bottom surface of the cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, by providing a detection component, the accuracy and efficiency of controlling the viscosity of the material liquid are significantly improved. The positive displacement flowmeter in the detection component can measure the number of times the material liquid flows through a certain volume and the resistance it receives in real time and accurately, so as to accurately calculate the viscosity of the material liquid, ensure that the viscosity of the material liquid before spray drying meets the process requirements, effectively avoid problems such as poor atomization effect or equipment blockage caused by improper viscosity, and greatly improve the stability of the production process and the product quality. In addition, the detection component is also equipped with a dilution and reflux re-detection function. Once it is found that the viscosity of the material liquid exceeds the standard, the dilution program is immediately started, and the diluted material liquid is sent back to the detection component through the reflux member for viscosity verification until the viscosity of the material liquid meets the requirements. The high degree of automation and intelligence of this process greatly reduces manual intervention and errors, and improves the overall production efficiency and flexibility;

[0017] 2. In the present invention, by providing a switch member, precise control and efficient management of the flow direction of the material liquid are achieved. Through the coordinated action of components such as an electric push rod, a rope, a sealing plate, and a spring, the switch member can automatically adjust the opening or closing state of the liquid leakage hole according to the feedback signal of the detection component. When the viscosity of the material liquid meets the requirements, the electric push rod contracts, driving the rope to release, and the spring rebounds to push the sealing plate to slide, thereby opening the liquid leakage hole and enabling the material liquid to smoothly flow into the atomizer for atomization drying. When the viscosity of the material liquid is too high and needs to be diluted, the electric push rod extends, pulling the sealing plate through the rope to closely fit the liquid leakage hole, effectively preventing the material liquid from continuing to flow into the atomizer, ensuring the smooth progress of the dilution process, improving the precision and flexibility of material processing, and effectively avoiding material leakage and waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the drying tower of the present invention;

[0020] Figure 3 is a schematic diagram of the overall structure of the atomization mechanism of the present invention;

[0021] Figure 4 is a schematic diagram of the split structure of the top plate and the housing of the present invention;

[0022] Figure 5 is a schematic diagram of the internal structure of the housing of the present invention;

[0023] Figure 6 is a schematic diagram of the overall structure of the detection component of the present invention;

[0024] Figure 7 is a schematic diagram of the bottom view structure of the switch member of the present invention;

[0025] Figure 8 of the present invention Figure 2 is an enlarged schematic diagram of part A.

[0026] In the figure: 1. Bracket; 2. Drying tower; 3. Blower; 4. Heater; 5. Air supply pipe; 6. Cyclone separator; 7. Collection bottle; 8. Atomizer; 9. Housing; 10. Cavity; 11. Top plate; 12. Liquid delivery pipe; 13. First fixing plate; 14. Second fixing plate; 15. Partition board; 16. Connecting plate; 17. Moving block; 18. Through hole; 19. Cylinder; 20. Electric push rod; 21. Positive displacement flowmeter; 22. First connecting pipe; 23. Second connecting pipe; 24. First liquid delivery pump; 25. Liquid inlet pipe; 26. Liquid outlet pipe; 27. Fixed column; 28. Leak hole; 29. Stirring blade; 30. Limiting plate; 31. Chute; 32. Sealing plate; 33. Spring; 34. Rope; 35. Liquid leakage hole; 36. Mounting plate; 37. Second liquid delivery pump; 38. First hose; 39. Second hose. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In a typical implementation mode of the present application, please refer to Figures 1 to 8 As shown in the figure, an atomization device for a spray dryer includes: a bracket 1, a drying tower 2 is fixedly installed on the top surface of the bracket 1, a blower 3 is fixedly installed on one side of the bracket 1, a heater 4 is fixedly installed on one side of the blower 3, an air supply pipe 5 is arranged on one side of the heater 4, and the other end of the air supply pipe 5 communicates with the inside of the drying tower 2 to provide hot air for the drying tower 2. A cyclone separator 6 is fixedly installed on one side of the drying tower 2. The dried powder material and gas mixture are separated by gas-solid separation through the cyclone separator 6. A collection bottle 7 is fixedly installed on one side of the cyclone separator 6 for collecting the dried material; an atomization mechanism is arranged on the drying tower 2, and the atomization mechanism includes: an atomizer 8, the atomizer 8 is arranged on the top surface of the drying tower 2, and the nozzle on the bottom surface of the atomizer 8 is located on the top surface inside the drying tower 2. The atomization mechanism further includes a material conveying component and a detection component.

[0029] As a preferred implementation mode in this embodiment, please refer to Figure 1 And Figure 3As shown in the figure, the material conveying assembly includes: a housing 9, which is fixedly installed on the side wall of the atomizer 8. A cavity 10 is formed inside the housing 9. A top plate 11 is fixedly installed on the top surface of the housing 9, and the top plate 11 is used to seal the upper part of the cavity 10. A liquid delivery pipe 12 is arranged on the top plate 11. One end of the liquid delivery pipe 12 is connected to a pump for conveying the material liquid, and the other end penetrates through the top surface of the top plate 11 and extends into the cavity 10 to convey the material liquid to the top surface of the first fixing plate 13.

[0030] With the above features, the material liquid can be transported to the top surface of the first fixing plate 13. Specifically, when the temperature inside the drying tower 2 is heated to an appropriate temperature, the staff turns on the pump for conveying the material liquid, so that the material liquid is conveyed to the top surface of the first fixing plate 13 through the liquid delivery pipe 12, and then the next detection operation is carried out.

[0031] As a preferred implementation manner in this embodiment, please refer to Figures 2 to 6 As shown in the figure, the detection assembly includes: a first fixing plate 13, which is fixedly installed on the inner wall of the cavity 10. A second fixing plate 14 is fixedly installed below the first fixing plate 13. A partition plate 15 is fixedly installed between the first fixing plate 13 and the second fixing plate 14. A connecting plate 16 is fixedly installed on the side wall of the partition plate 15. A moving block 17 is arranged above the first fixing plate 13. A through hole 18 is opened on the top surface of the moving block 17. A cylinder 19 is arranged on the moving block 17. The top surface of the cylinder 19 is fixedly connected to the bottom surface of the moving block 17, and the other end penetrates through the top surface of the first fixing plate 13 and extends above the connecting plate 16. An electric push rod 20 is fixedly installed on the top surface of the connecting plate 16. The output shaft of the electric push rod 20 is connected to the bottom surface of the cylinder 19. The inside of the cylinder 19 is communicated with the through hole 18. The detection assembly further includes: a positive displacement flowmeter 21, which is fixedly installed on the top surface of the second fixing plate 14 and is located below the electric push rod 20. A first connecting pipe 22 is arranged on the positive displacement flowmeter 21. One end of the first connecting pipe 22 is communicated with the inside of the cylinder 19, and the other end is communicated with the inside of the positive displacement flowmeter 21. A second connecting pipe 23 is arranged on one side of the positive displacement flowmeter 21. The other end of the second connecting pipe 23 penetrates through the top surface of the second fixing plate 14 and extends above the bottom surface of the cavity 10. The detection assembly further includes a dilution member and a reflux member.

[0032] With the above features, the viscosity of the material liquid can be detected. Specifically, when the first fixing plate 13 is filled with the material liquid, the liquid will flow into the cylinder 19 through the through hole 18, and then flow into the positive displacement flowmeter 21 through the first connecting pipe 22 to detect the viscosity of the material liquid. Then, the material liquid flows into the lower part of the second fixing plate 14 through the second connecting pipe 23 for storage;

[0033] It is worth mentioning that the positive displacement flowmeter 21 calculates the flow rate by measuring the number of times the fluid flows through a certain volume. When the material liquid flows through the inside of the flowmeter, due to the interaction between the material liquid and the rotor of the flowmeter, a certain resistance will be generated, and this resistance is related to the viscosity of the material liquid. Therefore, by measuring the number of rotations of the rotor and the resistance it receives, the viscosity of the material liquid can be deduced.

[0034] As a preferred implementation manner in this embodiment, please refer to Figure 4 and Figure 6 As shown, the dilution member includes: a first infusion pump 24, the first infusion pump 24 is fixedly installed on the top surface of the second fixing plate 14 and is located on one side of the positive displacement flowmeter 21. The first infusion pump 24 is provided with a liquid inlet pipe 25. One side of the liquid inlet pipe 25 is connected to the diluent storage tank, and the other side is connected to one side of the first infusion pump 24. A liquid outlet pipe 26 is provided on one side of the second fixing plate 14. The dilution member further includes: a fixing column 27, the fixing column 27 is fixedly installed on the bottom surface of the cavity 10. A plurality of leakage holes 28 are provided on the side wall of the fixing column 27. A stirring blade 29 is rotatably connected inside the fixing column 27. The other end of the liquid outlet pipe 26 penetrates through the top surface of the second fixing plate 14 and extends to the inside of the fixing column 27 along the side wall of the fixing column 27.

[0035] Through the above features, the material liquid with too high viscosity detected can be diluted. Specifically, if it is found that the viscosity of the material liquid is too high, the staff makes the first infusion pump 24 start according to the number of rotations of the rotor of the positive displacement flowmeter 21 and the resistance it receives, and makes the electric push rod 20 extend upward to drive the cylinder 19 and the moving block 17 to move upward, so that the moving block 17 fits against the bottom surface of the top plate 11 for sealing, and makes the pump for transporting the material liquid stop working. During the upward movement of the electric push rod 20, the switch member will be closed, so that the material liquid will no longer be injected into the atomizer 8 for atomization. Then, the diluent is injected into the fixing column 27 through the liquid inlet pipe 25 and the liquid outlet pipe 26. At this time, the diluent will impact the stirring blade 29 to make it rotate, accelerating the mixing of the material liquid and the diluent.

[0036] As a preferred implementation manner in this embodiment, please refer to Figure 3 and Figure 4 and Figure 6 As shown, the reflux member includes: a mounting plate 36, the mounting plate 36 is fixedly installed on the side wall of the housing 9. A second infusion pump 37 is fixedly installed on the top surface of the mounting plate 36. A first hose 38 is provided on one side of the second infusion pump 37. A second hose 39 is provided on the other side of the second infusion pump 37. The other side of the first hose 38 penetrates through the side wall of the housing 9 and extends to the lower part of the second fixing plate 14. The other side of the second hose 39 penetrates through the housing 9 and the side wall of the moving block 17 and extends into the through hole 18.

[0037] With the above features, the diluted material liquid can be detected again. Specifically, after mixing, the staff turns on the second infusion pump 37, so that the mixed material liquid flows into the through hole 18 through the first hose 38 and the second hose 39. Here, it is detected by the positive displacement flowmeter 21. After the detection, the electric push rod 20 will contract. At this time, the switch part will be opened, so that the material liquid flows into the atomizer 8 again for atomization. If the viscosity is still unqualified, the above operation will be repeated until it is qualified.

[0038] As a preferred embodiment in this embodiment, please refer to Figure 6 With Figure 7 As shown, a liquid leakage hole 35 is opened on the bottom surface of the cavity 10. The liquid leakage hole 35 is communicated with the inside of the atomizer 8. A switch part is arranged on one side of the liquid leakage hole 35. The switch part includes: a limit plate 30. A chute 31 is opened on the bottom surface of the limit plate 30. A sealing plate 32 is slidably connected to the inner wall of the chute 31. A spring 33 is arranged on the surface of the sealing plate 32 adjacent to the chute 31. A rope 34 is fixedly installed on the side wall of the sealing plate 32 away from the spring 33. The other end of the rope 34 is fixedly connected to the bottom surface of the cylinder 19.

[0039] With the above features, the liquid leakage hole 35 can be closed or opened according to the expansion and contraction of the electric push rod 20. Specifically, when the electric push rod 20 extends upward, the cylinder 19 will rise as the electric push rod 20 extends, and will drive the rope 34 to pull the sealing plate 32 to seal the liquid leakage hole 35. At this time, the spring 33 will be deformed by force. If the electric push rod 20 contracts, the sealing plate 32 will cancel the sealing of the liquid leakage hole 35 under the action of the resilience of the spring 33;

[0040] It is worth mentioning that the limit plate 30, the spring 33 and the rope 34 are all coated with waterproof paint. In addition, sealing rings are arranged at the places where the connecting plate 16 penetrates through the second fixing plate 14, the cylinder 19 penetrates through the first fixing plate 13, the second connecting pipe 23 penetrates through the second fixing plate 14, the rope 34 penetrates through the second fixing plate 14, the first hose 38 penetrates through the housing 9 and the second hose 39 penetrates through the housing 9 to prevent the material liquid from flowing out.

[0041] Working principle:

[0042] During use, the blower 3 is started to blow air into the heater 4 for heating. The heated hot air is sent into the interior of the drying tower 2 through the air supply pipe 5 to provide the required thermal environment for the spray drying process. When the temperature inside the drying tower 2 reaches the preset value, the staff starts the pump for transporting the material liquid. The material liquid is transported through the liquid delivery pipe 12 into the cavity 10 inside the housing 9 and first lands on the top surface of the first fixing plate 13. As the material liquid is continuously injected, the liquid flows into the cylinder 19 through the through hole 18 on the moving block 17, and then enters the positive displacement flowmeter 21 through the first connecting pipe 22. The positive displacement flowmeter 21 calculates the viscosity of the material liquid by measuring the number of times the material liquid flows through a certain volume and the resistance it receives. If the viscosity of the material liquid meets the requirements of spray drying, the electric push rod 20 will contract, driving the cylinder 19 and the moving block 17 to move downward. At this time, the spring 33 rebounds, pushing the sealing plate 32 to slide in the chute 31 to cancel the sealing of the liquid leakage hole 35. The material liquid flows into the atomizer 8 through the liquid leakage hole 35 and is atomized into tiny droplets by the nozzles on the bottom surface of the atomizer 8 and enters the interior of the drying tower 2 for drying. The dried powder material and gas mixture are separated by a cyclone separator 6, and finally the powder material is collected in the collection bottle 7. If the viscosity of the material liquid is too high, the positive displacement flowmeter 21 will send a signal, and the staff will start the first liquid infusion pump 24 according to the signal. The diluent is injected into the fixed column 27 from the diluent storage tank through the liquid inlet pipe 25 and the liquid outlet pipe 26. The diluent impacts the stirring blade 29 inside the fixed column 27, causing it to rotate and accelerating the mixing of the material liquid and the diluent. The mixed material liquid flows back into the through hole 18 on the moving block 17 through the second liquid infusion pump 37, the first hose 38 and the second hose 39, and is detected by the positive displacement flowmeter 21 again. If the viscosity is still unqualified, the above dilution process is repeated until the viscosity of the material liquid meets the requirements. When the viscosity of the material liquid is qualified, the electric push rod 20 contracts again, and the material liquid flows into the atomizer 8 through the liquid leakage hole 35 for atomization drying. During the whole process, the limit plate 30, the spring 33, the rope 34 and the sealing rings at each connection play a role in preventing the leakage of the material liquid, ensuring the stable operation of the device.

[0043] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An atomizing device for a spray dryer, characterized in that: include: A bracket (1), a drying tower (2) being fixedly mounted on the top surface of the bracket (1), a blower (3) being fixedly mounted on one side of the bracket (1), a heater (4) being fixedly mounted on one side of the blower (3), an air supply pipe (5) being provided on one side of the heater (4), the other end of the air supply pipe (5) being connected to the interior of the drying tower (2), a cyclone separator (6) being fixedly mounted on one side of the drying tower (2), and a collecting bottle (7) being fixedly mounted on one side of the cyclone separator (6); Atomizing mechanism, the atomizing mechanism is arranged on the drying tower (2), and the atomizing mechanism comprises: an atomizer (8), the atomizer (8) being arranged on the top surface of the drying tower (2), the nozzle on the bottom surface of the atomizer (8) being located on the top surface inside the drying tower (2), and the atomization mechanism further comprising a material conveying component and a detection component; The detection assembly comprises: a fixing plate 1 (13), the fixing plate 1 (13) being fixedly mounted on the inner wall of the cavity (10), a fixing plate 2 (14) being fixedly mounted below the fixing plate 1 (13), a partition plate (15) being fixedly mounted between the fixing plate 1 (13) and the fixing plate 2 (14), a connecting plate (16) being fixedly mounted on the side wall of the partition plate (15), a moving block (17) being arranged above the fixing plate 1 (13), and a moving block (17) A through hole (18) is opened on the top surface, and a cylinder (19) is arranged on the movable block (17). The top surface of the cylinder (19) is fixedly connected to the bottom surface of the movable block (17), and the other end of the cylinder (19) passes through the top surface of the fixed plate (13) and extends to the top of the connecting plate (16). An electric push rod (20) is fixedly installed on the top surface of the connecting plate (16), and the output shaft of the electric push rod (20) is connected to the bottom surface of the cylinder (19), and the interior of the cylinder (19) is connected to the through hole (18); The detection assembly further comprises: a volumetric flowmeter (21), the volumetric flowmeter (21) being fixedly mounted on the top surface of the second fixing plate (14) and being located below the electric push rod (20); a connecting pipe (22) being provided on the volumetric flowmeter (21); one end of the connecting pipe (22) being in communication with the interior of the cylinder (19) and the other end being in communication with the interior of the volumetric flowmeter (21); a connecting pipe (23) being provided on one side of the volumetric flowmeter (21); the other end of the connecting pipe (23) penetrating the top surface of the second fixing plate (14) and extending to above the bottom surface of the cavity (10); and the detection assembly further comprises a diluting member and a reflux member; The diluting component comprises: an infusion pump (24) which is fixedly mounted on the top surface of the second fixing plate (14) and is located on one side of the volumetric flow meter (21); the infusion pump (24) is provided with a liquid inlet pipe (25); one side of the liquid inlet pipe (25) is connected to a diluent storage tank, and the other side is connected to one side of the infusion pump (24); one side of the second fixing plate (14) is provided with a liquid outlet pipe (26); The diluting element further comprises: a fixed column (27), the fixed column (27) being fixedly mounted on the bottom surface of the cavity (10), a plurality of leakage holes (28) being formed on the side wall of the fixed column (27), a stirring blade (29) being rotatably connected inside the fixed column (27), and the other end of the liquid outlet pipe (26) penetrating the top surface of the second fixed plate (14) and the side wall of the fixed column (27) and extending to the inside of the fixed column (27).

2. The atomizing device for a spray dryer according to claim 1, characterized in that: Material handling components include: A shell (9), the shell (9) being fixedly mounted on a side wall of an atomizer (8), the shell (9) being provided with a cavity (10) inside, a top plate (11) being fixedly mounted on the top surface of the shell (9), a liquid infusion tube (12) being arranged on the top plate (11), one end of the liquid infusion tube (12) being connected to a pump for conveying material liquid, and the other end of the liquid infusion tube (12) penetrating the top surface of the top plate (11) and extending into the cavity (10).

3. The atomizing device for a spray dryer according to claim 1, characterized in that: The return parts include: A mounting plate (36), wherein the mounting plate (36) is fixedly mounted on the side wall of the housing (9), and an infusion pump (37) is fixedly mounted on the top surface of the mounting plate (36). A hose (38) is provided on one side of the infusion pump (37), and a hose (39) is provided on the other side of the infusion pump (37). The other side of the hose (38) passes through the side wall of the housing (9) and extends to the bottom of the fixed plate (14), and the other side of the hose (39) passes through the side wall of the housing (9) and the moving block (17) and extends to the through hole (18).

4. The atomizing device for a spray dryer according to claim 2, characterized in that: A liquid leakage hole (35) is provided on the bottom surface of the cavity (10), the liquid leakage hole (35) is in communication with the interior of the atomizer (8), and a switch component is provided on one side of the liquid leakage hole (35), the switch component comprising: A limit plate (30) is provided with a slide groove (31) on the bottom surface of the limit plate (30), a sealing plate (32) is slidably connected to the inner wall of the slide groove (31), a spring (33) is provided on the surface of the sealing plate (32) adjacent to the slide groove (31), a rope (34) is fixedly installed on the side wall of the sealing plate (32) away from the spring (33), and the other end of the rope (34) is fixedly connected to the bottom surface of the cylinder (19).

Images