A double separation spray dryer

Abstract

The utility model belongs to the technical field of spray drier, especially for a double separation spray drier, including the organism, the upper surface one side of organism is installed with atomizer, the surface front side of organism is installed with drying chamber, the outer wall one side of organism is installed with controller, the upper portion of controller is installed with peristaltic pump. The utility model through two cyclone separators in series, realized two stage separation, the first cyclone separator collects the vast majority of sample, and the second cyclone separator can effectively capture the fine powder that escapes, makes total sample recovery rate to obtain the remarkable promotion, especially suitable for the experiment of precious or trace sample, and in the drying process, the heavier or the particle size of larger particle is separated in the first cyclone separator mainly, and lighter, finer particle enters the second cyclone separator and is collected, through collecting the sample in two collecting bottles respectively, the preliminary separation of different particle size range sample is realized.

Description

Technical Field

[0001] This utility model relates to the field of spray dryer technology, specifically a dual-separation spray dryer. Background Technology

[0002] Spray drying is a widely used drying technology in modern industry and laboratories. It obtains powdered or granular solid products by atomizing liquid materials into tiny droplets and rapidly evaporating the solvent in a hot gas stream. Traditional laboratory spray dryers typically use a single cyclone separator to collect the dried samples.

[0003] However, this single separation structure has some inherent limitations: for powders with very fine particle sizes or light samples, the centrifugal force of a single cyclone separator may not be sufficient to capture them completely, resulting in some samples being discharged with the exhaust gas, causing sample loss and reducing the recovery rate. Furthermore, the size of the powder particles generated during the drying process is usually distributed in a certain way, and a single collection system cannot perform preliminary separation of particles of different sizes, making it difficult to meet the experimental needs of some samples that require a specific particle size range. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a dual-separation spray dryer, which solves the problem that existing cyclone separators may not be able to completely capture powders with very fine particle sizes or light samples due to insufficient centrifugal force of a single cyclone separator, resulting in some samples being discharged with the exhaust gas, causing sample loss and reducing the recovery rate. Furthermore, the powder particles generated during the drying process are usually of a certain size distribution, and a single collection system cannot perform preliminary separation of particles of different sizes, making it difficult to meet the experimental requirements of certain samples with specific particle size ranges.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-separation spray dryer, comprising a body, an atomizer mounted on one side of the upper surface of the body, a drying chamber mounted on the front side of the body surface, a controller mounted on one side of the outer wall of the body, a peristaltic pump mounted on the upper part of the controller, a feed pipe fixedly connected to the output end of the peristaltic pump, one end of the feed pipe fixedly connected to the input end of the atomizer, the output end of the atomizer connected to the feed end of the drying chamber, an exhaust pipe fixedly connected to the other side of the upper surface of the body, a first cyclone separator mounted on one end of the exhaust pipe, a first collection bottle detachably connected to the bottom of the first cyclone separator, a second cyclone separator detachably connected to the lower part of one side of the drying chamber, the second cyclone separator detachably mounted on one side of the first cyclone separator, and a second collection bottle detachably connected to the bottom of the second cyclone separator.

[0006] As a preferred embodiment of this utility model, a control panel is installed in the middle of the surface of the controller, and a power switch is installed in the lower part of the surface of the controller.

[0007] As a preferred embodiment of this invention, a collection pipe is detachably connected to the bottom of the drying chamber.

[0008] As a preferred embodiment of this utility model, the output end of the atomizer is connected to the feed end of the drying chamber via a large clamp.

[0009] As a preferred embodiment of this utility model, the bottom end of the exhaust pipe is connected to the first cyclone separator via a locking nut.

[0010] As a preferred embodiment of this utility model, the first cyclone separator is connected to the first collection bottle by a No. 1 clamp, the second cyclone separator is also connected to the second collection bottle by a No. 1 clamp, the first cyclone separator is connected to the second cyclone separator by a No. 2 clamp, and the drying chamber is also connected to the second cyclone separator by a No. 2 clamp.

[0011] In a preferred embodiment of this invention, the drying chamber and the collection pipe are connected by a No. 3 clamp.

[0012] Compared with the prior art, the present invention provides a dual-separation spray dryer, which has the following beneficial effects: This dual-separation spray dryer achieves two-stage separation through two cyclone separators connected in series. The first cyclone separator collects the majority of the sample, while the second cyclone separator effectively captures any escaping fine powder, significantly improving the overall sample recovery rate. It is particularly suitable for experiments with precious or trace samples. During the drying process, heavier or larger particles are mainly separated in the first cyclone separator, while lighter and finer particles are collected in the second cyclone separator. By collecting samples from the two collection bottles separately, preliminary separation of samples with different particle size ranges is achieved. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a side view of the present invention.

[0014] In the diagram: 100. Main body; 1. Atomizer; 2. Large clamp; 3. Exhaust pipe; 4. Locking nut; 5. First cyclone separator; 6. No. 1 clamp; 7. First collection bottle; 8. Controller; 9. Peristaltic pump; 10. Drying chamber; 11. Control panel; 12. No. 2 clamp; 13. Power switch; 14. Feed pipe; 15. No. 3 clamp; 16. Collection pipe; 17. Second cyclone separator; 18. Second collection bottle. Detailed Implementation

[0015] 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.

[0016] Example 1 Please see Figure 1-2 In this embodiment: a dual-separation spray dryer includes a body 100, an atomizer 1 is installed on one side of the upper surface of the body 100, a drying chamber 10 is installed on the front side of the surface of the body 100, a controller 8 is installed on one side of the outer wall of the body 100, a peristaltic pump 9 is installed on the upper part of the controller 8, the output end of the peristaltic pump 9 is fixedly connected to a feed pipe 14, one end of the feed pipe 14 is fixedly connected to the input end of the atomizer 1, the output end of the atomizer 1 is connected to the feed end of the drying chamber 10, an exhaust pipe 3 is fixedly connected to the other side of the upper surface of the body 100, a second cyclone separator 5 is installed at one end of the exhaust pipe 3, a second collection bottle 7 is detachably connected to the bottom of the second cyclone separator 5, a first cyclone separator 17 is detachably connected to the lower part of one side of the drying chamber 10, the first cyclone separator 17 is detachably installed on one side of the second cyclone separator 5, and a first collection bottle 18 is detachably connected to the bottom of the first cyclone separator 17. In this embodiment, a peristaltic pump 9 is connected to the feed pipe 14 to pump liquid material in and atomize it into fine droplets, which are then sent into the drying chamber 10. A hot gas stream carrying the dried sample powder enters the second cyclone separator 17 from the side outlet pipe of the drying chamber 10. Under centrifugal force, most of the larger or denser sample particles separate from the gas stream and fall along the inner wall, eventually being collected in the first collection bottle 7 connected by clamp 6. After the first stage of separation, the exhaust gas, which may still carry a small amount of ultrafine powder, is guided from the top outlet of the first cyclone separator 5 through the exhaust pipe 3 to the inlet of the second cyclone separator 17. Inside the second cyclone separator 17, the gas stream rotates at high speed again, generating a stronger centrifugal force field, separating these even finer particles from the gas stream and collecting them in the second collection bottle 18 below. Finally, the clean exhaust gas, after two stages of separation, is discharged from the exhaust pipe 3 at the top of the second cyclone separator 17.

[0017] Furthermore, a control panel 11 is installed in the middle of the surface of the controller 8, and a power switch 13 is installed in the lower part of the surface of the controller 8. The control panel 11 allows for setting and monitoring parameters such as inlet air temperature, peristaltic pump feed rate, and fan frequency.

[0018] Furthermore, a collection tube 16 is detachably connected to the bottom of the drying chamber 10; The collection tube 16 is used to collect larger particle samples that settle due to gravity in the drying chamber 10.

[0019] Preferably, the output end of the atomizer 1 is connected to the feed end of the drying chamber 10 via a large clamp 2; the bottom end of the exhaust pipe 3 is connected to the second cyclone separator 5 via a locking nut 4; the second cyclone separator 5 is connected to the second collection bottle 7 via a first clamp 6, the first cyclone separator 17 is also connected to the first collection bottle 18 via a first clamp 6, the second cyclone separator 5 is connected to the first cyclone separator 17 via a second clamp 12, the drying chamber 10 is also connected to the first cyclone separator 17 via a second clamp 12; and the drying chamber 10 is connected to the collection pipe 16 via a third clamp 15. The large clamp 2, the first clamp 6, the second clamp 12, and the third clamp 15 can connect all detachable parts, ensuring airtightness while making the installation, disassembly, and maintenance of the equipment extremely simple and quick.

[0020] The working principle and usage process of this utility model are as follows: The feed pipe 14 is connected to the peristaltic pump 9 to pump liquid materials in and atomize them into fine droplets, which are then sent into the drying chamber 10. The hot airflow carrying the dried sample powder enters the second cyclone separator 17 from the side air outlet pipe of the drying chamber 10. Under the action of centrifugal force, most of the sample particles with larger particle size or higher density will separate from the airflow and fall along the inner wall, and finally be collected in the first collection bottle 7 connected by clamp 6. After the first stage of separation, the exhaust gas may still carry a small amount of ultrafine powder. It is guided from the top outlet of the first cyclone separator 5 to the inlet of the second cyclone separator 17 through the exhaust pipe 3. Inside the second cyclone separator 17, the airflow rotates at high speed again, generating a stronger centrifugal force field, which separates these finer particles from the airflow and collects them in the second collection bottle 18 below. Finally, the clean exhaust gas after two-stage separation is discharged from the exhaust pipe 3 at the top of the second cyclone separator 17. The collection pipe 16 is set up to collect larger particle samples that settle due to gravity in the drying chamber 10.

[0021] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-separation spray dryer, comprising a body (100), characterized in that: An atomizer (1) is installed on one side of the upper surface of the machine body (100). A drying chamber (10) is installed on the front side of the surface of the machine body (100). A controller (8) is installed on one side of the outer wall of the machine body (100). A peristaltic pump (9) is installed on the upper part of the controller (8). The output end of the peristaltic pump (9) is fixedly connected to a feed pipe (14). One end of the feed pipe (14) is fixedly connected to the input end of the atomizer (1). The output end of the atomizer (1) is connected to the feed end of the drying chamber (10). A tailpipe (3) is fixedly connected to the other side of the upper surface of the body (100). A second cyclone separator (5) is installed at one end of the tailpipe (3). A second collection bottle (7) is detachably connected to the bottom of the second cyclone separator (5). A first cyclone separator (17) is detachably connected to the lower part of one side of the drying chamber (10). The first cyclone separator (17) is detachably installed on one side of the second cyclone separator (5). A first collection bottle (18) is detachably connected to the bottom of the first cyclone separator (17).

2. The dual-separation spray dryer according to claim 1, characterized in that: A control panel (11) is installed in the middle of the surface of the controller (8), and a power switch (13) is installed in the lower part of the surface of the controller (8).

3. The dual-separation spray dryer according to claim 1, characterized in that: The bottom of the drying chamber (10) is detachably connected to a collection tube (16).

4. The dual-separation spray dryer according to claim 1, characterized in that: The output end of the atomizer (1) is connected to the feed end of the drying chamber (10) via a large clamp (2).

5. A dual-separation spray dryer according to claim 1, characterized in that: The bottom end of the exhaust pipe (3) is connected to the second cyclone separator (5) by a locking nut (4).

6. A dual-separation spray dryer according to claim 1, characterized in that: The second cyclone separator (5) is connected to the second collection bottle (7) by a first clamp (6), the first cyclone separator (17) is also connected to the first collection bottle (18) by a first clamp (6), the second cyclone separator (5) is connected to the first cyclone separator (17) by a second clamp (12), and the drying chamber (10) is also connected to the first cyclone separator (17) by a second clamp (12).

7. A dual-separation spray dryer according to claim 3, characterized in that: The drying chamber (10) and the collection pipe (16) are connected by a No. 3 clamp (15).

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