A two-fluid co-atomizing device for a centrifugal spray dryer

Abstract

The utility model provides a kind of double-fluid collaborative atomization device of centrifugal spray dryer, it is related to atomization device field, the double-fluid collaborative atomization device of centrifugal spray dryer includes tank, feeding device and gas conveying device, the output end of feeding device is fixedly connected with shunt pipe, shunt pipe is provided with two output ends, and the two output ends of shunt pipe are all installed with centrifugal atomizer, the output end of two centrifugal atomizers is connected with tank inner cavity, the output end of gas conveying device is fixedly connected with gas distribution pipe, two gas conveying ends are provided on gas distribution pipe, two gas conveying ends are all installed with elbow pipe, two elbow pipes are about tank top center center symmetry setting, the bottom end of two elbow pipes is respectively inclined to the output end of two centrifugal atomizers, the utility model, the gas spouted by two elbow pipes can be spiral in tank, produce spiral airflow, form three-dimensional rotating flow, so that hot air and atomized liquid drop can be fully mixed.

Description

Technical Field

[0001] This utility model relates to the field of atomization devices, and in particular to a dual-fluid synergistic atomization device for a centrifugal spray dryer. Background Technology

[0002] Centrifugal spray dryers are highly efficient drying equipment. Their working principle involves atomizing materials into tiny droplets through a centrifugal atomizer. These droplets then come into full contact with hot air, completing the drying process in a short time to form powder or granular products. This equipment is widely used in the food, chemical, and pharmaceutical industries, such as for drying materials like milk powder, catalysts, and traditional Chinese medicine extracts. Centrifugal spray dryers offer advantages such as fast drying speed, high efficiency, energy saving, and environmental friendliness. They also produce products with controllable particle size, good solubility, and good flowability. With their compact structure, simple operation, and automated control capabilities, they are an indispensable piece of equipment in modern industrial production.

[0003] When using a centrifugal spray dryer, the liquid to be processed is drawn from the storage tank and atomized by a centrifugal atomizer. After hot air enters, it comes into contact with the bottom of the atomizing blades through diffusion. Since the existing centrifugal spray dryer only has a hot air inlet pipe on one side, there is a problem of insufficient contact between the hot air and the atomized droplets.

[0004] Therefore, it is necessary to provide a new dual-fluid synergistic atomization device for centrifugal spray dryers to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a dual-fluid synergistic atomization device for a centrifugal spray dryer. The dual-fluid synergistic atomization device for a centrifugal spray dryer provided by this utility model includes a tank, a feeding device, and a gas conveying device. The output end of the feeding device is fixedly connected to a diverter pipe, which has two output ends. A centrifugal atomizer is installed on each of the two output ends of the diverter pipe. The two centrifugal atomizers are respectively installed on both sides of the longitudinal direction of the tank, and the output ends of the two centrifugal atomizers are connected to the inner cavity of the tank. The output end of the gas conveying device is fixedly connected to a gas distribution pipe, which has two gas conveying ends. A bent pipe is installed on each of the two gas conveying ends. The two bent pipes are respectively installed on both sides of the transverse direction of the tank. The two bent pipes are centrally symmetrical about the center of the top of the tank, and the bottom ends of the two bent pipes are inclined towards the output ends of the two centrifugal atomizers.

[0006] Preferably, the feeding device includes a storage tank, a feeding pump, and a feeding pipe. The input end of the feeding pump is connected to the inner cavity of the storage tank, the output end of the feeding pump is fixedly connected to one end of the feeding pipe, and the end of the feeding pipe away from the feeding pump is fixedly connected to the inner cavity of the diversion pipe.

[0007] Preferably, the gas supply device includes a fan, a hot air heater, and a gas supply pipe. The fan and the hot air heater are both installed on one side of the tank. The output end of the fan is connected to the input end of the hot air heater. One end of the gas supply pipe is fixedly connected to the output end of the hot air heater, and the end of the gas supply pipe away from the hot air heater is fixedly connected to the inner cavity of the gas distribution pipe.

[0008] Preferably, the diverter has a U-shaped structure, and control valves are installed on the pipes connecting the two centrifugal atomizers in the diverter.

[0009] Preferably, an air inlet pipe is fixedly connected to the input end of the fan, one end of the air inlet pipe is threaded with an installation pipe, one end of the installation pipe is detachably connected to an installation ring, and a filter screen is fixed on the inner wall of the installation ring.

[0010] Preferably, both sides of the mounting tube are fixed with docking blocks, and both sides of the mounting ring are fixed with limiting members. The ends of the two limiting members can be moved into the docking grooves opened in the two docking blocks respectively.

[0011] Preferably, the limiting component includes a limiting frame, a spring, a connecting rod, and a pull plate. One end of the limiting frame is fixed to the outer wall of the mounting ring. The connecting rod movably passes through the limiting frame. One end of the connecting rod can be moved into the connecting groove. The other end of the connecting rod is fixedly connected to the pull plate. The spring is sleeved on the connecting rod, and both ends of the spring are fixed to the limiting frame and the pull plate, respectively.

[0012] Preferably, a support ring is fixedly sleeved on the outer wall of the tank, and multiple evenly distributed support frames are circumferentially fixedly connected to the outer wall of the support ring.

[0013] Compared with related technologies, the dual-fluid synergistic atomization device for centrifugal spray dryer provided by this utility model has the following beneficial effects: 1. Liquid is fed into the distribution pipe via a feeding device, and then delivered to two centrifugal atomizers through the two output ends of the distribution pipe. Under the atomization effect of the centrifugal atomizers, the liquid is sprayed onto the inner side of the tank. Gas is then delivered into the gas distribution pipe via a gas supply device. After being split by the gas distribution pipe, the gas enters two bend pipes and is sprayed out into the tank through the ends of the bend pipes. In this device, since the two centrifugal atomizers are installed on the longitudinal sides of the tank and the two bend pipes are installed on the transverse sides of the tank, with the bottom ends of the two bend pipes inclined towards the output ends of the two centrifugal atomizers, the gas sprayed through the bend pipes can directly act on the atomized droplets. Furthermore, since the two bend pipes are centrally symmetrical about the center of the top of the tank, the gas sprayed from the two bend pipes can form a spiral shape in the tank, generating a spiral airflow and forming a three-dimensional rotating flow. This allows the hot air and the atomized droplets to be fully mixed. The centrifugal force generated by the spiral airflow causes the hot air and droplets to form turbulent contact, improving the drying effect.

[0014] 2. The filter screen can filter out large particulate impurities in the air, making the hot air entering the tank purer. Pulling the pull plate stretches the spring, and the pull plate moves one end of the docking rod out of the docking groove. At this time, the mounting ring and filter screen can be directly removed from one end of the mounting tube for easy cleaning of the filter screen. Attached Figure Description

[0015] Figure 1 A schematic diagram of the dual-fluid synergistic atomization device for the centrifugal spray dryer provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the structure from another angle is shown; Figure 3 for Figure 1 A top view of the structure shown; Figure 4 for Figure 1 The diagram shows the structure of the gas distribution pipe and the bend pipe. Figure 5 for Figure 4 The diagram shown is a top view of the structure. Figure 6 for Figure 1 A partial structural diagram of the structure shown; Figure 7 for Figure 6 The diagram shows a decomposed structural design.

[0016] The following are the labels in the diagram: 1. Tank body; 2. Diverter pipe; 3. Centrifugal atomizer; 4. Air distribution pipe; 5. Bend pipe; 6. Storage tank; 7. Feed pump; 8. Feed pipe; 9. Fan; 10. Hot air heater; 11. Air supply pipe; 12. Control valve; 13. Air inlet pipe; 14. Mounting pipe; 15. Mounting ring; 16. Filter screen; 17. Connecting block; 18. Connecting groove; 19. Limiting frame; 20. Spring; 21. Connecting rod; 22. Pull plate; 23. Support ring; 24. Support frame. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] In the specific implementation process, such as Figures 1-7As shown, a dual-fluid synergistic atomization device for a centrifugal spray dryer includes a tank 1, a feeding device, and a gas conveying device. The output end of the feeding device is fixedly connected to a diversion pipe 2, which has two output ends. A centrifugal atomizer 3 is installed on each of the two output ends of the diversion pipe 2. The two centrifugal atomizers 3 are respectively installed on both sides of the longitudinal direction of the tank 1, and their output ends are connected to the inner cavity of the tank 1. The centrifugal atomizer 3 is model XH1000. The output end of the gas conveying device is fixedly connected to a gas distribution pipe 4, which has two gas delivery ends. A bent pipe 5 is installed on each of the two gas delivery ends. The two bent pipes 5 are respectively installed on both sides of the transverse direction of the tank 1, and are centrally symmetrical about the center of the top of the tank 1. The bottom ends of the two bent pipes 5 are inclined towards the output ends of the two centrifugal atomizers 3. Liquid is conveyed into the diversion pipe 2 through the feeding device and then transported through the two output ends of the diversion pipe 2. The gas is sprayed into the inner side of the tank 1 by the atomization effect of the two centrifugal atomizers 3. It is then supplied to the gas distribution pipe 4 through the gas supply device. After being split by the gas distribution pipe 4, the gas enters the two bent pipes 5 and is sprayed out into the tank 1 through the ends of the bent pipes 5. In this device, since the two centrifugal atomizers 3 are installed on the longitudinal sides of the tank 1 and the two bent pipes 5 are installed on the transverse sides of the tank 1, with the bottom ends of the two bent pipes 5 inclined towards the output ends of the two centrifugal atomizers 3, the gas sprayed through the bent pipes 5 can directly act on the output ends of the centrifugal atomizers 3. Furthermore, since the two bent pipes 5 are centrally symmetrical about the center of the top of the tank 1, the gas sprayed through the two bent pipes 5 can form a bolt-like shape in the tank 1, generating a spiral airflow and forming a three-dimensional rotating flow. This allows the hot air and the atomized droplets to be fully mixed. The centrifugal force generated by the spiral airflow causes the hot air and droplets to form turbulent contact, improving the drying effect.

[0019] The feeding device includes a storage tank 6, a feeding pump 7, and a feeding pipe 8. The input end of the feeding pump 7 is connected to the inner cavity of the storage tank 6, and the output end of the feeding pump 7 is fixedly connected to one end of the feeding pipe 8. The end of the feeding pipe 8 away from the feeding pump 7 is fixedly connected to the inner cavity of the diversion pipe 2. Through the feeding pump 7, the material in the feeding pipe 8 can be extracted and diverted in the diversion pipe 2 after being guided by the feeding pipe 8.

[0020] The gas supply device includes a blower 9, a hot air heater 10, and a gas supply pipe 11. Both the blower 9 and the hot air heater 10 are installed on one side of the tank 1. The blower 9 is a DRAD250-4 model. The output end of the blower 9 is connected to the input end of the hot air heater 10. The hot air heater 10 is a KQSN-150-5D model. One end of the gas supply pipe 11 is fixedly connected to the output end of the hot air heater 10, and the other end of the gas supply pipe 11 away from the hot air heater 10 is fixedly connected to the inner cavity of the gas distribution pipe 4. Air is drawn in by the blower 9, and the air is heated after passing through the hot air heater 10. The heated gas flows in the gas supply pipe 11 and is then split in the gas distribution pipe 4.

[0021] The splitter pipe 2 has a U-shaped structure. Control valves 12 are installed on the pipes that connect to the two centrifugal atomizers 3 in the splitter pipe 2. By setting two control valves 12, the opening and closing of the pipes that connect to the two centrifugal atomizers 3 in the splitter pipe 2 can be effectively controlled. When one of the centrifugal atomizers 3 malfunctions, the control valve 12 corresponding to the malfunctioning centrifugal atomizer 3 can be closed, and the entire device can still be used.

[0022] An air inlet pipe 13 is fixedly connected to the input end of the fan 9. An installation pipe 14 is threaded onto one end of the air inlet pipe 13. An installation ring 15 is detachably connected to one end of the installation pipe 14. A filter screen 16 is fixed on the inner wall of the installation ring 15. Through the filter screen 16, large particulate impurities in the air can be filtered, making the hot air input into the tank 1 purer.

[0023] Both sides of the mounting tube 14 are fixed with docking blocks 17, and both sides of the mounting ring 15 are fixed with limiting components. The ends of the two limiting components can be moved into the docking grooves 18 opened in the two docking blocks 17 respectively. The limiting components include a limiting frame 19, a spring 20, a docking rod 21 and a pull plate 22. One end of the limiting frame 19 is fixed to the outer wall of the mounting ring 15. The docking rod 21 moves through the limiting frame 19. One end of the docking rod 21 can be moved into the docking groove 18. The other end of the docking rod 21 is fixedly connected to the pull plate 22. The spring 20 is sleeved on the docking rod 21. The two ends of the spring 20 are fixed to the limiting frame 19 and the pull plate 22 respectively. When the filter screen 16 is disassembled and cleaned, the pull plate 22 can be pulled. The spring 20 is stretched. The pull plate 22 drives one end of the docking rod 21 to move out of the docking groove 18. At this time, the mounting ring 15 and the filter screen 16 can be directly removed from one end of the mounting tube 14 for easy cleaning of the filter screen 16.

[0024] A support ring 23 is fixedly fitted on the outer wall of the tank body 1. Multiple evenly distributed support frames 24 are fixedly connected to the outer wall of the support ring 23 in a circumferential direction. The support ring 23 and support frames 24 facilitate the support of the tank body 1.

[0025] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A two-fluid co-atomizing device for a centrifugal spray dryer, characterized by, The device includes a tank (1), a feeding device, and a gas conveying device. The output end of the feeding device is fixedly connected to a diversion pipe (2). The diversion pipe (2) has two output ends, and centrifugal atomizers (3) are installed on both output ends of the diversion pipe (2). The two centrifugal atomizers (3) are respectively installed on both sides of the longitudinal direction of the tank (1), and the output ends of the two centrifugal atomizers (3) are connected to the inner cavity of the tank (1). The output end of the gas conveying device is fixedly connected to a gas distribution pipe (4). The gas distribution pipe (4) has two gas conveying ends, and bent pipes (5) are installed on both gas conveying ends. The two bent pipes (5) are respectively installed on both sides of the transverse direction of the tank (1). The two bent pipes (5) are centrally symmetrical about the center of the top of the tank (1), and the bottom ends of the two bent pipes (5) are inclined toward the output ends of the two centrifugal atomizers (3).

2. A two-fluid co-atomizing device for a centrifugal spray dryer according to claim 1, characterized in that The feeding device includes a storage tank (6), a feeding pump (7) and a feeding pipe (8). The input end of the feeding pump (7) is connected to the inner cavity of the storage tank (6), the output end of the feeding pump (7) is fixedly connected to one end of the feeding pipe (8), and the end of the feeding pipe (8) away from the feeding pump (7) is fixedly connected to the inner cavity of the diversion pipe (2).

3. The dual fluid co-atomizing device of a centrifugal spray dryer according to claim 1, wherein, The gas delivery device includes a blower (9), a hot air heater (10), and a gas delivery pipe (11). The blower (9) and the hot air heater (10) are both installed on one side of the tank (1). The output end of the blower (9) is connected to the input end of the hot air heater (10). One end of the gas delivery pipe (11) is fixedly connected to the output end of the hot air heater (10), and the end of the gas delivery pipe (11) away from the hot air heater (10) is fixedly connected to the inner cavity of the gas distribution pipe (4).

4. The dual fluid co-atomizing device of a centrifugal spray dryer according to claim 1, wherein, The diversion pipe (2) has a U-shaped structure, and control valves (12) are installed on the pipes that connect the two centrifugal atomizers (3) in the diversion pipe (2).

5. The dual fluid co-atomizing device of a centrifugal spray dryer according to claim 3, wherein, An air inlet pipe (13) is fixedly connected to the input end of the fan (9). An installation pipe (14) is threaded onto one end of the air inlet pipe (13). An installation ring (15) is detachably connected to one end of the installation pipe (14). A filter screen (16) is fixed on the inner wall of the installation ring (15).

6. A two-fluid co-atomizing device for a centrifugal spray dryer according to claim 5, characterized in that Both sides of the mounting tube (14) are fixed with docking blocks (17), and both sides of the mounting ring (15) are fixed with limiting members. The ends of the two limiting members can be moved into the docking grooves (18) opened by the two docking blocks (17).

7. A two-fluid co-atomizing device for a centrifugal spray dryer according to claim 6, characterized in that The limiting component includes a limiting frame (19), a spring (20), a docking rod (21), and a pull plate (22). One end of the limiting frame (19) is fixed on the outer wall of the mounting ring (15). The docking rod (21) moves through the limiting frame (19). One end of the docking rod (21) can be moved into the docking groove (18). The other end of the docking rod (21) is fixedly connected to the pull plate (22). The spring (20) is sleeved on the docking rod (21). Both ends of the spring (20) are fixed on the limiting frame (19) and the pull plate (22), respectively.

8. The dual fluid co-atomizing device of a centrifugal spray dryer according to claim 1, wherein, The outer wall of the tank body (1) is fixedly sleeved with a supporting ring (23), and a plurality of uniformly distributed supporting frames (24) are fixedly connected in a circumferential manner on the outer wall of the supporting ring (23).

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