Spray dryer with uniform drying function

Abstract

The utility model relates to the technical field of spray dryers, in particular to a spray dryer capable of drying uniformly. The device comprises a drying tower and a mounting table, the upper end of the drying tower is provided with a cover which is fixedly connected through a bolt, the upper end of the cover is fixedly connected with a connector and a discharge pipe, the arc surface of the connector is provided with a pre-fixing assembly, the arc surface of the drying tower is provided with a valve, and the valve is connected with the drying tower. By arranging the uniform drying assembly, when atomized liquid drops sprayed out of the atomizer need to be dried, gas passes through an air filter, an air blower and a heater, so that the gas is heated, and the gas passes through a hot air inlet pipe, a mounting pipe and a short pipe to be fed into a plurality of drying rings; and then hot air is blown out from the air outlet hole, so that the hot air is in better contact with atomized liquid drops sprayed by an atomizer above for drying, and the effects of uniformly drying the atomized liquid drops as far as possible and improving the quality of dried materials are achieved.

Description

Technical Field

[0001] This utility model relates to the field of spray dryer technology, and in particular to a spray dryer for uniform drying. Background Technology

[0002] A spray dryer is a device that can simultaneously dry and granulate. It consists of a drying tower, valves, a cover, connectors, atomizers, a hot air inlet pipe, a heater, a blower, an air filter, connecting pipes, and an outlet pipe. When using the spray dryer, the material pipe is fixed to the connector, and the outlet pipe is connected to the gas-solid separation system via a pipeline. The material is then fed into the connector via a pressure pump, and then atomized into small droplets. Air passes through the air filter, blower, and heater, causing hot air to be injected into the drying tower through the hot air inlet pipe, where it comes into contact with the sprayed droplets for drying. The heated droplets evaporate into powder. Coarse powder particles fall to the bottom of the inner wall of the drying tower, while finer particles are drawn along with the hot air through the outlet pipe to the gas-solid separation system for dust removal and recovery. Opening the valves allows the coarse powder particles to be discharged.

[0003] The inventors discovered in their daily work that when using a spray dryer to dry the small droplets sprayed from the atomizer, hot air is blown out from the top of the drying tower through the hot air inlet pipe. This makes it difficult for the small droplets to come into good contact with the hot air during the drying process, resulting in a decrease in the uniformity of drying. Consequently, the mist-like droplets may be discharged with the dried material, which may affect the quality of the material. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in actual use, when drying small droplets sprayed from an atomizer, hot air is blown out from the top of the drying tower through a hot air inlet pipe. This makes it difficult for the small droplets to come into good contact with the hot air during the drying process, resulting in a decrease in drying uniformity. Consequently, the atomized droplets may be discharged with the dried material, which may affect the quality of the material. Therefore, this invention proposes a spray dryer for uniform drying.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a uniformly drying spray dryer, comprising a drying tower and an mounting platform. The upper end of the drying tower is provided with a cover fixedly connected by bolts. A connector and a discharge pipe are fixedly connected to the upper end of the cover. A pre-fixing component is provided on the arc surface of the connector. A valve is installed on the arc surface of the drying tower. An atomizer is fixedly connected to the lower end of the connector. A blower and a heater are installed on the upper end of the mounting platform. An air filter is provided on the left end of the blower. The blower, heater, and air filter are fixed together by a connecting pipe. A uniform drying component is provided on the inner wall of the drying tower. The uniform drying component includes multiple uniformly distributed drying rings fixedly connected to the inner wall of the drying tower. Air outlets are opened on the surface of the drying rings. An mounting pipe is fixedly connected to the arc surface of the drying tower. A short pipe is fixedly connected between the mounting pipe and the drying rings. A hot air inlet pipe is fixedly connected between the mounting pipe and the heater.

[0006] The effect achieved by the above components is as follows: by setting up a uniform drying component, when it is necessary to dry the atomized droplets sprayed by the atomizer, the gas passes through an air filter, a blower, and a heater, so that the gas is heated. It is then sent into multiple drying rings through the hot air inlet pipe, the installation pipe, and the short pipe. Then, the hot air is blown out through the air outlet, so as to better contact the atomized droplets sprayed by the atomizer above for drying, thereby achieving uniform drying of the atomized droplets as much as possible and improving the quality of the dried material.

[0007] Preferably, a protective block is rotatably connected to the inner wall of the air outlet, and a first spring is fixedly connected between the protective block and the drying ring.

[0008] The effect achieved by the above components is as follows: when hot air is released from the vent, it blows the protective block, causing the first spring to be stretched; when the hot air supply stops, the first spring drives the protective block to return to its original position.

[0009] Preferably, the arc surface of the protective block is provided with a sealing ring, which is used to seal between the drying ring and the protective block.

[0010] The effect achieved by the above components is to prevent atomized droplets from entering the drying ring when hot air has not been blown out, by setting up protective blocks and sealing rings.

[0011] Preferably, a telescopic rod is rotatably connected to one side of the protective block, and the other end of the telescopic rod is rotatably connected to the drying ring.

[0012] The effect achieved by the above components is to minimize the jitter when the spring returns to its original position by setting a telescopic rod that acts as a damping rod.

[0013] Preferably, the first spring is sleeved on the telescopic rod, and the upper end of the drying ring has a sliding surface.

[0014] The effect achieved by the above components is that the atomized droplets slide off by setting a sliding surface.

[0015] Preferably, the pre-fixing component includes a mounting sleeve fixedly connected to the arc surface of the connector, and the inner wall of the mounting sleeve is provided with a plurality of evenly distributed pre-fixing blocks.

[0016] The effect achieved by the above components is as follows: when pre-fixing the material pipe and the connector, the material pipe is inserted into the connector, and then the pushing mechanism brings multiple pre-fixing blocks close to the material pipe, and then clamps and fixes the material pipe, thereby pre-fixing the material pipe and the connector, and then fixing it with clamps.

[0017] Preferably, a push rod is fixedly connected to the arc surface of the pre-fixed block, the push rod is slidably inserted into the mounting sleeve, the arc surface of the mounting sleeve is threadedly connected to a threaded ring, and the upper end of the threaded ring is provided with a push surface.

[0018] The effect achieved by the above components is that by twisting the threaded ring, the pusher is pushed by the pusher surface, causing multiple pre-fixed blocks to approach the material pipe.

[0019] Preferably, a second spring is fixedly connected to the arc surface of the pre-fixed block, and the other end of the second spring is fixed to the mounting sleeve.

[0020] The effect achieved by the above components is as follows: when the pre-fixed block clamps the material tube, the second spring is stretched; after the threaded ring is released and pushes the push rod, the second spring returns to its original position, thereby resetting the pre-fixed block.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] In this invention, by setting up a uniform drying component, when it is necessary to dry the atomized droplets sprayed from the atomizer, the gas is heated by passing through an air filter, a blower, and a heater. The gas is then sent into multiple drying rings through a hot air inlet pipe, an installation pipe, and a short pipe. The hot air is then blown out through the air outlet, thus making better contact with the atomized droplets sprayed from the atomizer above for drying. This achieves uniform drying of the atomized droplets as much as possible, improving the quality of the dried material. This solves the problem that when drying small droplets sprayed from the atomizer, hot air is blown out from the top of the drying tower through a hot air inlet pipe. This makes it difficult for the small droplets to make good contact with the hot air during the drying process, resulting in a decrease in drying uniformity. Consequently, the atomized droplets may be discharged with the dried material, which can easily affect the quality of the material. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2This is a three-dimensional structural diagram of the uniform drying component of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the lid of this utility model;

[0026] Figure 4 This is a three-dimensional structural schematic diagram of the cross-section of the uniform drying component of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the cross-section of the pre-fixed component of this utility model.

[0028] Legend: 1. Drying tower; 2. Uniform drying assembly; 3. Pre-fixed assembly; 4. Connector; 5. Valve; 6. Discharge pipe; 7. Cover; 8. Air filter; 9. Mounting platform; 10. Connecting pipe; 11. Blower; 12. Heater; 13. Atomizer; 21. Mounting pipe; 22. Hot air inlet pipe; 23. Drying ring; 24. Short pipe; 25. Air outlet; 26. Sliding surface; 27. Protective block; 28. First spring; 29. ​​Telescopic rod; 210. Sealing ring; 31. Mounting sleeve; 32. Pre-fixed block; 33. Push rod; 34. Threaded ring; 35. Second spring; 36. Push surface. Detailed Implementation

[0029] Reference Figure 1 and Figure 2 as well as Figure 3 As shown, this utility model provides a technical solution: a uniformly drying spray dryer includes a drying tower 1 and a mounting platform 9. The upper end of the drying tower 1 is provided with a cover 7 fixedly connected by bolts. The upper end of the cover 7 is fixedly connected with a connector 4 and a discharge pipe 6. The arc surface of the connector 4 is provided with a pre-fixing component 3. The arc surface of the drying tower 1 is equipped with a valve 5. The lower end of the connector 4 is fixedly connected with an atomizer 13. The upper end of the mounting platform 9 is equipped with a blower 11 and a heater 12. The left end of the blower 11 is provided with an air filter 8. The blower 11, the heater 12, and the air filter 8 are fixed together by a connecting pipe 10. The inner wall of the drying tower 1 is provided with a uniform drying component 2.

[0030] The specific setup and function of the uniform drying component 2 and the pre-fixing component 3 will be explained in detail below.

[0031] Reference Figure 2 and Figure 4As shown, in this embodiment: the uniform drying component 2 includes multiple uniformly distributed drying rings 23 fixedly connected to the inner wall of the drying tower 1. The surface of each drying ring 23 has an air outlet 25. An installation pipe 21 is fixedly connected to the arc surface of the drying tower 1. A short pipe 24 is fixedly connected between the installation pipe 21 and the drying rings 23. A hot air inlet pipe 22 is fixedly connected between the installation pipe 21 and the heater 12. By setting the uniform drying component 2, when it is necessary to dry the atomized droplets sprayed from the atomizer 13, the gas is heated by passing through an air filter 8, a blower 11, and a heater 12. The gas is then fed into the multiple drying rings 23 through the hot air inlet pipe 22, the installation pipe 21, and the short pipe 24. Hot air is then blown out through the air outlet 25, thus achieving better contact with the atomized droplets sprayed from the atomizer 13 above for drying. This achieves uniform drying of the atomized droplets and improves the quality of the dried material. A protective block 27 is rotatably connected to the inner wall of the vent 25. A first spring 28 is fixedly connected between the protective block 27 and the drying ring 23. When hot air is released from the vent 25, it blows the protective block 27, causing the first spring 28 to be stretched. When the hot air supply stops, the first spring 28 drives the protective block 27 to return to its original position. A sealing ring 210 is provided on the arc surface of the protective block 27. The sealing ring 210 is used to seal between the drying ring 23 and the protective block 27. By setting the protective block 27 and the sealing ring 210, the atomized droplets are prevented from entering the drying ring 23 when the hot air is not blown out. A telescopic rod 29 is rotatably connected to one side of the protective block 27. The other end of the telescopic rod 29 is rotatably connected to the drying ring 23. By setting the telescopic rod 29, the shaking when the spring returns to its original position is eliminated as much as possible. The first spring 28 is sleeved on the telescopic rod 29. A sliding surface 26 is opened at the upper end of the drying ring 23. By setting the sliding surface 26, the atomized droplets slide off.

[0032] Reference Figure 5As shown in this embodiment: the pre-fixing component 3 includes a mounting sleeve 31 fixedly connected to the arc surface of the connector 4. The inner wall of the mounting sleeve 31 is provided with multiple evenly distributed pre-fixing blocks 32. When pre-fixing the material pipe to the connector 4, the material pipe is inserted into the connector 4. Then, by a pushing mechanism, the multiple pre-fixing blocks 32 are brought closer to the material pipe, clamping and fixing it, thereby pre-fixing the material pipe to the connector 4. It can then be fixed by clamps. A push rod 33 is fixedly connected to the arc surface of the pre-fixing block 32, and the push rod 33 is slidably inserted and installed. The sleeve 31 is threaded with a threaded ring 34 on its arc surface. The upper end of the threaded ring 34 has a push surface 36. Tightening the threaded ring 34 pushes the push rod 33 with the help of the push surface 36, causing multiple pre-fixed blocks 32 to approach the material pipe. The arc surface of the pre-fixed block 32 is fixedly connected with a second spring 35. The other end of the second spring 35 is fixed to the sleeve 31. When the pre-fixed block 32 clamps the material pipe, the second spring 35 is under tension. After the threaded ring 34 is released and the push rod 33 is pushed, the second spring 35 returns to its original position, causing the pre-fixed block 32 to return to its original position.

[0033] Working principle:

[0034] When using a spray dryer, the material pipe is fixed to connector 4, and the discharge pipe 6 is connected to the gas-solid separation system via a pipeline. The material is then input into connector 4 via a pressure pump, and then atomized into small droplets by atomizer 13. Air passes through air filter 8, blower 11, and heater 12 (air filter 8, blower 11, and heater 12 are commercially available products; their specific usage is existing technology and will not be elaborated upon here), causing hot air to be injected into drying tower 1 through hot air inlet pipe 22, thus contacting and drying the atomized droplets. The droplets evaporate into powder. The coarse powder particles then fall to the bottom of the inner wall within the drying tower 1, while the finer particles, along with hot air, are drawn through the exhaust pipe 6 by a fan to the gas-solid separation system for dust removal and recovery. Opening valve 5 allows the coarse powder particles to be discharged. When drying the atomized droplets sprayed from the atomizer 13 is required, the gas is heated by passing through an air filter 8, a blower 11, and a heater 12. The heated gas then passes through the hot air inlet pipe 22, the mounting pipe 21, and the short pipe 24 into multiple drying rings 23, and is finally blown out through the outlet 25. Hot air is used to better contact the atomized droplets sprayed from the atomizer 13 above for drying, thereby achieving more uniform drying of the atomized droplets and improving the quality of the dried material. The protective block 27 and sealing ring 210 prevent atomized droplets from entering the drying ring 23 when hot air is not being blown out. When hot air is released from the air outlet 25, it blows the protective block 27, stretching the first spring 28. When the hot air supply stops, the first spring 28 drives the protective block 27 to reset. The extension rod 29 is used to minimize spring vibration during reset. A sliding mechanism is also included. Surface 26 allows the atomized droplets to slide off. When pre-fixing the material tube to the connector 4, the material tube is inserted into the connector 4, and then the threaded ring 34 is turned so that the push rod 33 is pushed by the push surface 36, so that multiple pre-fixing blocks 32 approach the material tube and clamp and fix the material tube, thereby pre-fixing the material tube to the connector 4. Then it can be fixed by clamp. When the pre-fixing block 32 clamps the material tube, the second spring 35 is stretched. After the threaded ring 34 is released and the push rod 33 is pushed, the second spring 35 returns to its original position, so that the pre-fixing block 32 returns to its original position.

[0035] It should be noted that in this case, the telescopic rods are all damping rods and are telescopic dampers that can absorb energy during the extension and retraction process.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A spray dryer for uniform drying, comprising a drying tower (1) and a mounting platform (9), characterized in that: The upper end of the drying tower (1) is provided with a cover (7) fixedly connected by bolts. The upper end of the cover (7) is fixedly connected with a connector (4) and a discharge pipe (6). The arc surface of the connector (4) is provided with a pre-fixing component (3). The arc surface of the drying tower (1) is equipped with a valve (5). The lower end of the connector (4) is fixedly connected with an atomizer (13). The upper end of the mounting platform (9) is equipped with a blower (11) and a heater (12). The left end of the blower (11) is provided with an air filter (8). The blower (11) and the heater (12) and The air filters (8) are fixed together by connecting pipes (10). The inner wall of the drying tower (1) is provided with a uniform drying component (2). The uniform drying component (2) includes a plurality of uniformly distributed drying rings (23) fixedly connected to the inner wall of the drying tower (1). The surface of the drying rings (23) is provided with air outlet holes (25). The arc surface of the drying tower (1) is fixedly connected to an installation pipe (21). A short pipe (24) is fixedly connected between the installation pipe (21) and the drying rings (23). A hot air inlet pipe (22) is fixedly connected between the installation pipe (21) and the heater (12).

2. The spray dryer for uniform drying according to claim 1, characterized in that: The inner wall of the air outlet (25) is rotatably connected to a protective block (27), and a first spring (28) is fixedly connected between the protective block (27) and the drying ring (23).

3. The spray dryer for uniform drying according to claim 2, characterized in that: The arc surface of the protective block (27) is provided with a sealing ring (210), which is used to seal between the drying ring (23) and the protective block (27).

4. The spray dryer for uniform drying according to claim 3, characterized in that: One side of the protective block (27) is rotatably connected to a telescopic rod (29), and the other end of the telescopic rod (29) is rotatably connected to the drying ring (23).

5. The spray dryer for uniform drying according to claim 4, characterized in that: The first spring (28) is sleeved on the telescopic rod (29), and the upper end of the drying ring (23) has a sliding surface (26).

6. The spray dryer for uniform drying according to claim 5, characterized in that: The pre-fixing component (3) includes a mounting sleeve (31) fixedly connected to the arc surface of the connector (4), and the inner wall of the mounting sleeve (31) is provided with a plurality of evenly distributed pre-fixing blocks (32).

7. A spray dryer for uniform drying according to claim 6, characterized in that: The pre-fixed block (32) has a push rod (33) fixedly connected to its arc surface. The push rod (33) is slidably inserted into the mounting sleeve (31). The arc surface of the mounting sleeve (31) is threadedly connected to a threaded ring (34). The upper end of the threaded ring (34) has a push surface (36).

8. A spray dryer for uniform drying according to claim 7, characterized in that: The arc surface of the pre-fixed block (32) is fixedly connected to a second spring (35), and the other end of the second spring (35) is fixed to the mounting sleeve (31).

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