A pressure granulation spray device

Abstract

The utility model relates to powder engineering and spray drying technical field discloses a pressure type granulation spray device, including drying tower, the drying tower outside is provided with pressure relief mechanism, the drying tower top fixed mounting has the fog machine, the fog machine top fixedly connected with the feed inlet, the drying tower outside fixedly connected with support frame, support frame top fixedly connected with heating fan, heating fan output end sets up in drying tower inside, the drying tower bottom fixedly connected with cyclone separator, the cyclone separator bottom is provided with storage barrel, the cyclone separator outside fixedly connected with waste gas pipe. In the utility model, waste gas enters the gas collecting box through the waste gas pipe, the filter plate filters the granulation falling into the drawer, the activated carbon plate adsorbs the harmful gas, solves the waste material waste and environmental pollution problem, the return pipe is helical, cooperates the air blower to recover waste gas pipe heat and sends back drying tower, reduces the heat waste.

Description

Technical Field

[0001] This utility model relates to the fields of powder engineering and spray drying technology, and in particular to a pressure granulation spray device. Background Technology

[0002] With the rapid development of industries such as chemical, pharmaceutical, and food, pressure granulation spraying equipment, as a core device for converting liquid materials into granular products, is widely used in the material drying and granulation process. This equipment, through atomization and drying processes, can efficiently produce granular products with uniform particle size and good flowability, playing a vital role in improving product quality and production efficiency.

[0003] However, existing pressure granulation spraying devices still have some shortcomings. Regarding waste gas treatment and heat recovery, they cannot effectively recover waste materials from the waste gas, leading to resource waste, and the incomplete purification of the waste gas can easily cause environmental pollution; simultaneously, heat is wasted. In terms of equipment safety, when the exhaust pipe is not smooth, the air pressure inside the drying tower will rise sharply. Traditional devices cannot effectively and promptly release pressure, posing safety hazards such as equipment damage or even explosion. Therefore, a pressure granulation spraying device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a pressure granulation spray device, which aims to improve the problems of waste material waste and environmental pollution, heat waste, and ineffective pressure relief in the existing technology.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a pressure granulation spray device, comprising a drying tower, a pressure relief mechanism provided on the outside of the drying tower, a mist generator fixedly installed on the top of the drying tower, a feed inlet fixedly connected to the top of the mist generator, a support frame fixedly connected on the outside of the drying tower, a heating fan fixedly connected to the top of the support frame, the output end of the heating fan located inside the drying tower, a cyclone separator fixedly connected to the bottom of the drying tower, a storage tank provided at the bottom of the cyclone separator, an exhaust pipe fixedly connected to the outside of the cyclone separator, a gas collection box fixedly connected to one end of the exhaust pipe, a waste recovery mechanism and a heat recovery mechanism provided inside the gas collection box, two limiting strips fixedly connected inside the gas collection box, an activated carbon plate and a filter plate installed sequentially from top to bottom inside the gas collection box, and a conveying pipe fixedly connected to the outside of the gas collection box;

[0006] The waste recycling mechanism includes a drawer and a fixing block. The drawer is slidably connected to the inside of the gas collection box. A locking block is fixedly connected to the outside of the drawer. The fixing block is fixedly connected to the outside of the drawing box. A sleeve is fixedly connected inside the fixing block. A pin is slidably connected inside the sleeve. A washer is fixedly connected to the outside of the pin. A spring is sleeved on the outside of the pin.

[0007] As a further description of the above technical solution:

[0008] The pressure relief mechanism includes a pressure relief pipe, which is fixedly connected to the outside of the drying tower. A positioning ring is fixedly connected inside the pressure relief pipe, and a sliding rod is slidably connected inside the positioning ring. A spring is sleeved on the outside of the sliding rod, and a piston is fixedly connected to one end of the sliding rod.

[0009] As a further description of the above technical solution:

[0010] The heat recovery mechanism includes a blower, the output end of which is fixedly connected to a return pipe. The end of the return pipe away from the blower is fixedly connected to the outside of the drying tower, and the outside of the return pipe is located inside the exhaust gas pipe.

[0011] As a further description of the above technical solution:

[0012] The bottom of the drawer is slidably connected to the top of the limiting strip, the outer side of the gasket is slidably connected to the inside of the sleeve, and the outer side of the latch is inserted into the inside of the locking block;

[0013] As a further description of the above technical solution:

[0014] One end of the spring is fixedly connected to the top of the washer, and the other end of the spring abuts against the inner top wall of the sleeve;

[0015] As a further description of the above technical solution:

[0016] One end of the second spring is fixedly connected to one side of the positioning ring, and the other end of the second spring abuts against the piston;

[0017] As a further description of the above technical solution:

[0018] The outer side of the slide rod is slidably connected to the inside of the pressure relief pipe, and the outer side of the pressure relief pipe is fixedly connected to the inside of the delivery pipe;

[0019] As a further description of the above technical solution:

[0020] The piston is slidably connected to the inside of the pressure relief pipe on its outer side, and the piston is also slidably connected to the inside of the delivery pipe on its outer side.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when treating waste gas, the waste gas enters the gas collection box through the waste gas pipe, the filter plate filters the granules carried out in the waste gas, and the granules fall into the drawer. The activated carbon plate adsorbs harmful gases to solve the problem of waste materials not being recycled and environmental pollution in the waste gas. At the same time, the return pipe is designed in a spiral shape to increase the heat exchange area. The blower recovers the heat in the waste gas pipe through the return pipe and sends it back to the drying tower to solve the problem of heat waste.

[0023] 2. In this utility model, with the cooperation of the pressure relief mechanism consisting of the pressure relief pipe, the slide rod, the second spring, and the piston, when the air pressure inside the drying tower is too high, the air pressure pushes the piston to stretch the second spring and slide the slide rod, so that the pressure relief pipe begins to release pressure. When the pressure inside the drying tower is normal, the piston is stably locked inside the pressure relief pipe under the action of the second spring, thereby solving the problem of safety hazards caused by excessive air pressure inside the drying tower. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a pressure granulation spray device proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the drying tower of a pressure granulation spray device proposed in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic cross-sectional view of the air collection box structure of a pressure granulation spray device proposed in this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Feed inlet; 2. Fog generator; 3. Drying tower; 4. Heating fan; 5. Locking block; 6. Support frame; 7. Cyclone separator; 8. Storage hopper; 9. Gas collection box; 10. Drawer; 11. Fixing block; 12. Spring 1; 13. Exhaust gas pipe; 14. Return pipe; 15. Conveying pipe; 16. Pressure relief pipe; 17. Pin; 18. Limiting strip; 19. Sleeve; 20. Activated carbon plate; 21. Filter plate; 22. Blower; 23. Gasket; 24. Slide rod; 25. Positioning ring; 26. Spring 2; 27. Piston. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 An embodiment of this utility model provides: a pressure granulation spray device, including a drying tower 3, a pressure relief mechanism on the outside of the drying tower 3, a mist generator 2 fixedly installed on the top of the drying tower 3, a feed inlet 1 fixedly connected to the top of the mist generator 2, a support frame 6 fixedly connected to the outside of the drying tower 3, a heating fan 4 fixedly connected to the top of the support frame 6, the output end of the heating fan 4 being located inside the drying tower 3, a cyclone separator 7 fixedly connected to the bottom of the drying tower 3, a storage tank 8 at the bottom of the cyclone separator 7, an exhaust pipe 13 fixedly connected to the outside of the cyclone separator 7, a gas collection box 9 fixedly connected to one end of the exhaust pipe 13, a waste recovery mechanism and a heat recovery mechanism being provided inside the gas collection box 9, two limiting strips 18 fixedly connected inside the gas collection box 9, an activated carbon plate 20 and a filter plate 21 installed sequentially from top to bottom inside the gas collection box 9, and a conveying pipe 15 fixedly connected to the outside of the gas collection box 9;

[0033] The waste recycling mechanism includes a drawer 10 and a fixing block 11. The drawer 10 is slidably connected to the inside of the air collection box 9. A locking block 5 is fixedly connected to the outside of the drawer 10. The fixing block 11 is fixedly connected to the outside of the air collection box 9. A sleeve 19 is fixedly connected inside the fixing block 11. A pin 17 is slidably connected inside the sleeve 19. A gasket 23 is fixedly connected to the outside of the pin 17. A spring 12 is sleeved on the outside of the pin 17. The bottom of the drawer 10 is slidably connected to the top of the limiting strip 18. The gasket 23 is slidably connected to the inside of the sleeve 19. The pin 17 is inserted into the inside of the locking block 5. One end of the spring 12 is fixedly connected to the top of the gasket 23. The other end of the spring 12 abuts against the inner top wall of the sleeve 19.

[0034] The drying tower 3 is the main body of the device, providing the drying space for granulation spraying and a mounting location for various components. The feed inlet 1 is for material input. The mist generator 2 atomizes the material for drying and granulation, and sprays the atomized material into the drying tower 3 through a nozzle at the bottom of the mist generator 2. The support frame 6 supports and fixes the drying tower 3 and the heating fan 4. The output end of the heating fan 4 extends into the drying tower 3, delivering hot air into the drying tower 3 to dry the atomized material. The cyclone separator 7 separates the dried particles from the gas, allowing the dried particles to be discharged from the discharge port at the bottom of the cyclone separator 7. A switch is installed on the discharge port to control the flow of particles. The storage tank 8 collects the dried and separated granular material. The exhaust pipe 13 discharges the separated exhaust gas. The gas collection box 9 houses the waste recovery mechanism and heat recovery mechanism, and is used to fix the filter plate 21 and activated carbon plate 20. An exhaust pipe is installed on its top to discharge the purified and filtered gas. The limiting strip 18 supports the drawer 10 to slide stably inside the gas collection box 9. The activated carbon plate 20 adsorbs harmful gases in the exhaust gas. The filter plate 21 filters the granules carried out by the exhaust gas, allowing the granules to fall into the drawer 10. The conveying pipe 15 transports the gas from the pressure relief pipe 16 to the gas collection box 9 for purification and discharge. The drawer 10 collects the filtered waste. The fixing block 11 fixes the sleeve 19 and cooperates with the pin 17, washer 23, and spring 12 inside the sleeve 19 to lock the drawer 10. The drawer 10 has a handle on the outside for easy operation. The sleeve 19 provides a sliding space for the spring 12, pin 17, and washer 23. The spring 12 ensures that the pin 17 is securely inserted into the locking block 5 without external force. The pin 17 is inserted into the locking block 5 to fix the drawer 10 and to fix the spring 12 and washer 23. The washer 23 is used to transmit the elastic force of the spring 12 to the latch 17, and also to enable the latch 17 to slide stably inside the sleeve 19. The top of the latch 17 is provided with a pull ring, which makes it convenient for the operator to pull the latch 17. The locking block 5 is used to install the latch 17 and fix the drawer 10.

[0035] Reference Figures 1-3 The pressure relief mechanism includes a pressure relief pipe 16, which is fixedly connected to the outside of the drying tower 3. A positioning ring 25 is fixedly connected inside the pressure relief pipe 16. A sliding rod 24 is slidably connected inside the positioning ring 25. A second spring 26 is sleeved on the outside of the sliding rod 24. A piston 27 is fixedly connected to one end of the sliding rod 24. One end of the second spring 26 is fixedly connected to one side of the positioning ring 25. The other end of the second spring 26 abuts against the piston 27. The outside of the sliding rod 24 is slidably connected to the inside of the pressure relief pipe 16. The outside of the pressure relief pipe 16 is fixedly connected to the inside of the conveying pipe 15. The outside of the piston 27 is slidably connected to the inside of the pressure relief pipe 16. The outside of the piston 27 is slidably connected to the inside of the conveying pipe 15.

[0036] The pressure relief pipe 16 is used to install and fix various components, providing a sliding space for the slide rod 24, positioning ring 25, spring 26, and piston 27, and is used to relieve pressure in the drying tower 3 when the internal air pressure is too high. The slide rod 24 is used to fix the piston 27, and a convex ring is provided at the end of the slide rod 24 away from the piston 27 to prevent the slide rod 24 from disengaging from the positioning ring 25. The positioning ring 25 is used to ensure the slide rod 24 slides stably inside the pressure relief pipe 16, preventing the slide rod 24 from disengaging from the positioning ring 25. Spring 26 is used to stably engage the piston 27 inside the pressure relief pipe 16 when the internal pressure of the drying tower 3 is normal. The piston 27 slides within the pressure relief pipe 16 and the delivery pipe 15 to cooperate with the slide rod 24 and spring 26 to control the internal pressure of the drying tower 3.

[0037] Reference Figures 1-4 The heat recovery mechanism includes a blower 22, and a return pipe 14 is fixedly connected to the output end of the blower 22. The end of the return pipe 14 away from the blower 22 is fixedly connected to the outside of the drying tower 3, and the outside of the return pipe 14 is located inside the exhaust pipe 13.

[0038] The blower 22 is used to send the heat in the exhaust gas back to the drying tower 3 through the return pipe 14. The portion of the return pipe 14 in the exhaust gas pipe 13 is designed in a spiral shape to increase the contact area with the exhaust gas, thereby increasing the heat recovery efficiency. It is used to recover the heat inside the exhaust gas pipe 13 and send the heat back to the drying tower 3. A one-way valve is installed at one end of the return pipe 14 outside the drying tower 3 to control the airflow direction inside the return pipe 14, so that the gas can only flow into the drying tower 3 and cannot flow out.

[0039] Working Principle: When granulation of materials is required, the material enters the mist generator 2 through the feed inlet 1. The mist generator 2 atomizes the material and sprays it into the drying tower 3 through the bottom nozzle. The heating fan 4 is started to deliver hot air into the drying tower 3 to dry the atomized material. The dried granules are separated by the cyclone separator 7 at the bottom of the drying tower 3. The granules enter the storage tank 8 from the discharge port at the bottom of the cyclone separator 7. The separated waste gas enters the gas collection box 9 through the waste gas pipe 13. The filter plate 21 in the gas collection box 9 filters the granules carried in the waste gas, causing the granules to fall into the drawer 10. The activated carbon plate 20 adsorbs harmful gases in the waste gas. The purified and filtered gas is discharged from the exhaust pipe at the top of the gas collection box 9. At this time, in the heat recovery mechanism, the blower 22 is started to recover the heat in the waste gas pipe 13 through the return pipe 14. The return pipe 14 is spiral in shape in the waste gas pipe 13 to increase the contact area. The recovered heat is sent back to the drying tower 3 through the return pipe 14. When the internal pressure of the drying tower 3 is too high, the pressure pushes the piston 27 to compress the second spring 26, and the slide rod 24 slides within the positioning ring 25. The pressure relief pipe 16 begins to release pressure, and the gas enters the gas collection box 9 for purification through the delivery pipe 15. After the pressure returns to normal, the second spring 26 pushes the piston 27 to reset. When the internal pressure of the drying tower 3 is normal, the second spring 26 keeps the piston 27 stably engaged inside the pressure relief pipe 16, ensuring the stable operation of the pressure relief mechanism. After working for a period of time, when it is necessary to process the granules inside the drawer 10, pull the pull ring to pull the pin 17 out of the locking block 5. At this time, pull the handle to pull the drawer 10 out of the gas collection box 9. Then, release the pull ring and process the granules inside the drawer 10. After processing, pull the pull ring to allow the drawer 10 to be placed into the gas collection box 9. When the drawer 10 is fully placed into the gas collection box 9, release the pull ring. The pin 17 is stably engaged inside the locking block 5 under the action of the first spring 12, thus fixing the drawer 10.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure granulation spray device comprising a drying tower (3), characterized in that: A pressure relief mechanism is provided on the outside of the drying tower (3). A mist generator (2) is fixedly installed on the top of the drying tower (3). A feed inlet (1) is fixedly connected to the top of the mist generator (2). A support frame (6) is fixedly connected to the outside of the drying tower (3). A heating fan (4) is fixedly connected to the top of the support frame (6). The output end of the heating fan (4) is located inside the drying tower (3). A cyclone separator (7) is fixedly connected to the bottom of the drying tower (3). The part is equipped with a storage tank (8), and the cyclone separator (7) is fixedly connected to the outside of the exhaust pipe (13). One end of the exhaust pipe (13) is fixedly connected to a gas collection box (9). The gas collection box (9) is equipped with a waste recycling mechanism and a heat recovery mechanism. The gas collection box (9) is fixedly connected to two limiting strips (18). The gas collection box (9) is installed with activated carbon plate (20) and filter plate (21) from top to bottom. The gas collection box (9) is fixedly connected to a conveying pipe (15). The waste recycling mechanism includes a drawer (10) and a fixing block (11). The drawer (10) is slidably connected to the inside of the gas collection box (9). A locking block (5) is fixedly connected to the outside of the drawer (10). The fixing block (11) is fixedly connected to the outside of the (9). A sleeve (19) is fixedly connected inside the fixing block (11). A pin (17) is slidably connected inside the sleeve (19). A washer (23) is fixedly connected to the outside of the pin (17). A spring (12) is sleeved on the outside of the pin (17).

2. A pressure granulation spraying device according to claim 1, characterized in that: The pressure relief mechanism includes a pressure relief pipe (16), which is fixedly connected to the outside of the drying tower (3). A positioning ring (25) is fixedly connected inside the pressure relief pipe (16), and a sliding rod (24) is slidably connected inside the positioning ring (25). A spring (26) is sleeved on the outside of the sliding rod (24), and a piston (27) is fixedly connected to one end of the sliding rod (24).

3. A pressure granulation spraying device according to claim 1, characterized in that: The heat recovery mechanism includes a blower (22), and a return pipe (14) is fixedly connected to the output end of the blower (22). The end of the return pipe (14) away from the blower (22) is fixedly connected to the outside of the drying tower (3), and the outside of the return pipe (14) is located inside the exhaust pipe (13).

4. A pressure granulation spraying device according to claim 1, characterized in that: The bottom of the drawer (10) is slidably connected to the top of the limiting strip (18), the outer side of the gasket (23) is slidably connected to the inside of the sleeve (19), and the outer side of the pin (17) is inserted into the inside of the locking block (5).

5. A pressure granulation spraying device according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the top of the gasket (23), and the other end of the spring (12) abuts against the inner top wall of the sleeve (19).

6. A pressure granulation spraying device according to claim 2, characterized in that: One end of the second spring (26) is fixedly connected to one side of the positioning ring (25), and the other end of the second spring (26) abuts against the piston (27).

7. A pressure granulation spraying device according to claim 2, characterized in that: The outer side of the slide rod (24) is slidably connected to the inside of the pressure relief pipe (16), and the outer side of the pressure relief pipe (16) is fixedly connected to the inside of the delivery pipe (15).

8. A pressure granulation spraying device according to claim 2, characterized in that: The piston (27) is slidably connected outside the pressure relief pipe (16), and the piston (27) is slidably connected outside the conveying pipe (15).

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