High-speed centrifugal spray drying device

Abstract

The utility model relates to a high-speed centrifugal spray drying device, belonging to the field of drying equipment, the high-speed centrifugal spray drying device is used for medicine drying, the left and right sides of a feed pipe are connected with a liquid storage tank through liquid inlet pipes, liquid inlet is uniform, the top of the feed pipe and the left and right sides of a drying tank are provided with air inlet pipes, the air inlet pipes are provided with heaters, and the heaters are connected with the liquid storage tank. According to the technical scheme, hot air is guaranteed to sufficiently and evenly enter the drying tank, dried materials enter the recycling tank to be recycled, the problem that the dried materials are difficult to recycle is effectively solved, at least four inner tank bodies are arranged in the recycling tank and correspond to the drying tank, the first cyclone separator, the second cyclone separator and the dust remover respectively, and the materials are recycled in a graded mode. And the drying degree which does not meet the requirement can be recycled and re-dried.

Description

Technical Field

[0001] The utility model belongs to the field of drying equipment, and specifically relates to a high-speed centrifugal spray drying device. Background Art

[0002] Spray dryer is a type of atmospheric pressure dryer. It sprays liquid into mist and dries it by contacting it with hot air. It is often used to dry certain heat-sensitive liquids, suspensions and viscous liquids, such as milk, eggs, tannins and drugs. It can also be used to dry fuels, intermediates, soap powder and inorganic salts. The drying process is simple and gentle, suitable for large-scale industrial production. As a device for separating gas-solid systems or liquid-solid systems, it has broad application prospects in the dairy, food, chemical and pharmaceutical industries.

[0003] The working principle of the existing spray drying device is to use an atomizer to atomize the feed liquid into droplets with a small diameter, and quickly evaporate the water or other solvents in the feed liquid during direct contact with hot air or other heat media in the drying tower. The feed liquid is dried into a powder product in a very short time and then discharged from the drying tower to a cyclone separator to achieve gas-solid separation to obtain a dry product. However, the spray drying device may have problems such as difficulty in recovering the dried material, insufficient heat energy, and limited drying effect.

[0004] The utility model patent with publication number CN219963953U discloses a small spray dryer that is easy to clean the inner wall. It is only equipped with one set of cyclone separators and two sets of collecting bottles. The separation effect of one set of cyclone separators is limited, and the two sets of collecting bottles can only collect materials at the drying tank and the cyclone separators. In the process of drug drying, the drying dust is also the product itself, and the dust recovered by the dust collector should also be recovered as a product. Utility Model Content

[0005] In order to overcome the problems existing in the background technology, the utility model discloses a high-speed centrifugal spray drying device, which is used for drug drying. The left and right sides of the feed pipe are connected to the liquid storage tank through the liquid inlet pipe, and the liquid is fed evenly. The top of the feed pipe and the left and right sides of the drying tank are provided with air inlet pipes, and the air inlet pipes are provided with heaters to ensure that hot air enters the drying tank sufficiently and evenly. The dried material enters the recovery tank for recovery, which effectively solves the problem of difficulty in recovering the dried material.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] The high-speed centrifugal spray drying device comprises a drying tank, a feed pipe, a liquid storage tank, a connecting pipe, an air inlet pipe, a first connecting pipe, a first cyclone separator, a second connecting pipe, a second cyclone separator, a third connecting pipe, a dust collector, a fourth connecting pipe, a recovery tank, and a recovery tank;

[0008] The feed pipe is connected to the drying tank, the connecting pipe is connected to the feed pipe, the liquid storage tank is connected to the connecting pipe, the air inlet pipe is connected to the drying tank, the first connecting pipe is connected to the drying tank, the first cyclone separator is connected to the first connecting pipe, the second connecting pipe is connected to the first cyclone separator, the second cyclone separator is connected to the second connecting pipe, the third connecting pipe is connected to the second cyclone separator, the dust collector is connected to the third connecting pipe, the fourth connecting pipe is connected to the dust collector, the recovery pipe is connected to the fourth connecting pipe, the recovery tank is arranged below the cyclone separator, and an inner tank body is arranged inside the recovery tank.

[0009] The top of the liquid storage tank is provided with a liquid inlet pipe and a liquid level meter, the bottom of the liquid storage tank is provided with a liquid leakage pipe, and the liquid storage tank and the liquid inlet pipe are provided with two groups, which are located on the left and right sides of the feed pipe.

[0010] The air inlet pipe is provided with a heater, and at least three groups of air inlet pipes are provided. The three groups of air inlet pipes are respectively located on the left and right sides of the drying tank and the top of the feed pipe.

[0011] A dispersion pipe is arranged inside the drying tank, the bottom of the dispersion pipe is connected to a rotary atomizing nozzle, a discharge pipe is arranged at the bottom of the drying tank, and a pressure relief pipe and a pressure gauge are arranged at the top of the drying tank.

[0012] The first cyclone separator has the same internal structure as the second cyclone separator, and a separator discharge pipe is arranged at the bottom of the cyclone separator.

[0013] A dust removal bag is arranged inside the dust collector, and a dust removal pipe is arranged at the bottom of the dust collector.

[0014] A water inlet pipe is arranged on the top of the recovery tank, a spray head is arranged inside the recovery tank, the spray head is connected to the water inlet pipe, an air outlet pipe is arranged on the left side of the recovery tank, and a recovery water pipe is arranged at the bottom of the recovery tank.

[0015] At least four inner tank bodies are arranged inside the recovery tank, and an inverted cone-shaped discharge port is arranged at the bottom of the inner tank body, and the discharge port is connected to a discharge pipe.

[0016] The beneficial effects of the utility model are as follows: the high-speed centrifugal spray drying device is used for drug drying, and the left and right sides of the feed pipe are connected to the liquid storage tank through the liquid inlet pipe, and the liquid is fed evenly. The top of the feed pipe and the left and right sides of the drying tank are provided with air inlet pipes, and heaters are provided on the air inlet pipes to ensure that hot air enters the drying tank sufficiently and evenly, and the dried material enters the recovery tank for recovery, which effectively solves the problem of difficulty in recovering the dried material. At least four inner tank bodies are provided inside the recovery tank, and the four inner tank bodies correspond to the drying tank, the first cyclone separator, the second cyclone separator, and the dust collector, respectively, to grade and recover the materials, and the materials that do not meet the drying degree requirements can be recovered and dried again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the dust collector;

[0019] Figure 3 It is a schematic diagram of the structure of the recovery tank;

[0020] Figure 4 It is a schematic diagram of the structure of the inner tank.

[0021] In the figure, 1-drying tank, 2-feeding pipe, 3-liquid storage tank, 4-connecting pipe, 5-air inlet pipe, 6-first connecting pipe, 7-first cyclone separator, 8-second connecting pipe, 9-second cyclone separator, 10-third connecting pipe, 11-dust collector, 12-fourth connecting pipe, 13-recovery tank, 14-recovery tank, 15-dispersion pipe, 16-rotating atomizing nozzle, 12-pressure relief pipe, 18-pressure gauge, 19-liquid inlet pipe, 20-liquid level gauge, 21-leakage pipe, 22-discharge pipe, 23-separator discharge pipe, 24-dust outlet pipe, 25-recovery water pipe, 26-inner tank body, 27-discharge pipe, 28-dust bag, 29-water inlet pipe, 30-air outlet pipe, 31-spray head, 32-discharge port. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objectives, technical solutions and beneficial effects clearer, the present invention is described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-4As shown, the high-speed centrifugal spray drying device includes a drying tank 1, a feed pipe 2, a liquid storage tank 3, a liquid feed pipe 4, an air inlet pipe 5, a first connecting pipe 6, a first cyclone separator 7, a second connecting pipe 8, a second cyclone separator 9, a third connecting pipe 10, a dust collector 11, a fourth connecting pipe 12, a recovery tank 13, and a recovery tank 14. The feed pipe 2 is connected to the drying tank 1, and a dispersion pipe 15 is arranged inside the drying tank 1. The bottom of the dispersion pipe 15 is connected to a rotary atomizing nozzle 16. The bottom of the drying tank 1 is provided with a discharge pipe 22, and the top of the drying tank 1 is provided with A pressure relief pipe 12, a pressure gauge 18, a connecting pipe 4 is connected to the feed pipe 2, a liquid storage tank 3 is connected to the connecting pipe 4, a connecting pipe 4 and a liquid level gauge 20 are arranged on the top of the liquid storage tank 3, a leakage pipe 21 is arranged at the bottom of the liquid storage tank 3, the liquid storage tank 3 and the connecting pipe 4 are arranged in two groups, located on the left and right sides of the feed pipe 2, an air inlet pipe 5 is connected to the drying tank 1, a heater is arranged on the air inlet pipe 5, at least three groups of air inlet pipes 5 are arranged, and the three groups of air inlet pipes 5 are respectively located on the left and right sides of the drying tank 1, the top of the feed pipe 2, the first connecting pipe 6 is connected to the drying tank 1, the first The cyclone separator 7 is connected to the first connecting pipe 6, the second connecting pipe 8 is connected to the first cyclone separator 7, the second cyclone separator 9 is connected to the second connecting pipe 8, the third connecting pipe 10 is connected to the second cyclone separator 9, the dust collector 11 is connected to the third connecting pipe 10, the fourth connecting pipe 12 is connected to the dust collector 11, and the recovery pipe is connected to the fourth connecting pipe 12. The recovery tank 14 is arranged below the cyclone separator, and an inner tank body 26 is arranged inside the recovery tank 14. The first cyclone separator 7 has the same internal structure as the second cyclone separator 9. The bottom of the cyclone separator A separator discharge pipe 23 is provided at the top, a dust bag 28 is provided inside the dust collector 11, a dust removal pipe is provided at the bottom of the dust collector 11, a water inlet pipe 29 is provided at the top of the recovery tank 13, a spray head 31 is provided inside the recovery tank 13, the spray head 31 is connected to the water inlet pipe 29, an air outlet pipe 30 is provided on the left side of the recovery tank 13, a recovery water pipe 25 is provided at the bottom of the recovery tank 13, at least four inner tank bodies 26 are provided inside the recovery tank 14, an inverted cone-shaped discharge port 32 is provided at the bottom of the inner tank body 26, and the discharge port 32 is connected to the feed pipe 27.

[0024] The high-speed centrifugal spray drying device is used for drug drying. A feed pipe 2 is provided on the top of the drying tank 1. The left and right sides of the feed pipe 2 are connected to the liquid storage tank 3 through a connecting pipe 4. The material to be dried is fed from the left and right sides of the feed pipe 2 to ensure that the material enters evenly. The top of the feed pipe 2 and the left and right sides of the drying tank 1 are provided with an air inlet pipe 5. The air inlet pipe 5 is provided with a heater. The air inlet pipe 5 on the top of the feed pipe 2 can blow out the drug liquid to ensure that the hot air enters the drying tank 1 sufficiently and evenly. The pipe mouth of the feed pipe 2 located inside the drying tank 1 is connected to a dispersion pipe 15. The bottom of the dispersion pipe 15 is connected to a rotary atomizing nozzle 16 to rotate and spray the drug liquid. The splashed liquid is fully in contact with the hot air. A part of the dried material enters the first cyclone separator 7, and a part of it leaks down into the inner tank body of the recovery tank 14. The material entering the cyclone separator passes through the first cyclone separator. 7 after processing, enters the second cyclone separator 9, the material dispersed from the second cyclone separator 9 enters the dust collector 11, the gas flowing out from the top of the dust collector 11 enters the recovery tank 13, and a spray head 31 is arranged in the recovery tank 13 to spray and remove dust on the incoming gas to avoid the residual material affecting the environment. At least four inner tank bodies 26 are arranged inside the recovery tank 14, and the four inner tank bodies 26 correspond to the discharge pipe 22 of the drying tank 1, the separator discharge pipe 23 of the first cyclone separator 7, the separator discharge pipe 23 of the second cyclone separator 9, and the dust discharge pipe 24 of the dust collector 11. The materials are graded and recovered, and the materials whose drying degree does not meet the requirements can be recovered and dried again. This setting can also adapt to materials with different humidity to avoid over-drying of low-humidity materials and affect the quality. The connecting pipe 4 and the air inlet pipe 5 are provided with a pump group and a control valve, which can smoothly feed and intake air.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. High-speed centrifugal spray drying device, characterized in that: The high-speed centrifugal spray drying device comprises a drying tank, a feed pipe, a liquid storage tank, a connecting pipe, an air inlet pipe, a first connecting pipe, a first cyclone separator, a second connecting pipe, a second cyclone separator, a third connecting pipe, a dust collector, a fourth connecting pipe, a recovery tank, and a recovery tank; The feed pipe is connected to the drying tank, the connecting pipe is connected to the feed pipe, the liquid storage tank is connected to the connecting pipe, the air inlet pipe is connected to the drying tank, the first connecting pipe is connected to the drying tank, the first cyclone separator is connected to the first connecting pipe, the second connecting pipe is connected to the first cyclone separator, the second cyclone separator is connected to the second connecting pipe, the third connecting pipe is connected to the second cyclone separator, the dust collector is connected to the third connecting pipe, the fourth connecting pipe is connected to the dust collector, the recovery pipe is connected to the fourth connecting pipe, the recovery tank is arranged below the cyclone separator, and an inner tank body is arranged inside the recovery tank.

2. The high-speed centrifugal spray drying device according to claim 1, characterized in that :include: A liquid inlet pipe, a liquid level gauge, and a liquid leakage pipe; the liquid inlet pipe and the liquid level gauge are arranged on the top of the liquid storage tank, and the liquid leakage pipe is arranged on the bottom of the liquid storage tank; the liquid storage tank and the liquid inlet pipe are arranged in two groups, which are located on the left and right sides of the feed pipe.

3. The high-speed centrifugal spray drying device according to claim 1, characterized in that : A heater is arranged on the air inlet pipe, and at least three groups of air inlet pipes are arranged. The three groups of air inlet pipes are respectively located on the left and right sides of the drying tank and the top of the feed pipe.

4. The high-speed centrifugal spray drying device according to claim 1, characterized in that : include: A dispersion pipe, a rotary atomizing nozzle, a discharge pipe, a pressure relief pipe, and a pressure gauge; the dispersion pipe is arranged inside the drying tank, the dispersion pipe is connected to the feed pipe, the rotary atomizing nozzle is arranged at the bottom of the dispersion pipe, the discharge pipe is arranged at the bottom of the drying tank, and the pressure relief pipe and the pressure gauge are arranged at the top of the drying tank.

5. The high-speed centrifugal spray drying device according to claim 1, characterized in that : The first cyclone separator has the same internal structure as the second cyclone separator, and a separator discharge pipe is provided at the bottom of the first cyclone separator and the second cyclone separator.

6. The high-speed centrifugal spray drying device according to claim 1, characterized in that : It includes a dust removal bag and a dust removal pipe; the dust removal bag is arranged inside the dust collector, and the dust removal pipe is arranged at the bottom of the dust collector.

7. The high-speed centrifugal spray drying device according to claim 1, characterized in that : It includes: a water inlet pipe, a sprinkler head, an air outlet pipe, and a recovery water pipe; the water inlet pipe is arranged at the top of the recovery tank, the sprinkler head is arranged inside the recovery tank, the sprinkler head is connected to the water inlet pipe, the air outlet pipe is arranged on the left side of the recovery tank, and the recovery water pipe is arranged at the bottom of the recovery tank.

8. The high-speed centrifugal spray drying device according to claim 1, characterized in that : At least four inner tank bodies are arranged inside the recovery tank, and an inverted cone-shaped discharge port is arranged at the bottom of the inner tank body, and the discharge port is connected to the discharge pipe.

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