Sectional cooling spray type downstream drying tower

Abstract

The utility model discloses a subsection cooling spray type down-flow drying tower which comprises a rotational flow tower body, the rotational flow tower body comprises a cylindrical part and a water cooling cone, the cylindrical part comprises a cylindrical inner container and a circulating air cooling jacket, the circulating air cooling jacket surrounds the cylindrical inner container, and the water cooling cone is arranged in the cylindrical inner container. The circulating air cooling jacket is arranged in the cylindrical inner container, an air cooling flow channel is reserved between the circulating air cooling jacket and the cylindrical inner container, the cylindrical part is vertically arranged, the upper end of the cylindrical part is connected with a material connector and a hot air connector, the lower end of the cylindrical part is fixedly connected with the water cooling cone, and the tip end of the water cooling cone faces downwards. The water cooling cone comprises a conical inner container and a conical clamping sleeve, and a water cooling flow channel is reserved between the conical inner container and the conical clamping sleeve. Atomized materials are cooled through the air cooling flow channel and the water cooling flow channel, sectional type cooling of air cooling and water cooling is formed, the materials are cooled step by step in the descending process, and due to the relative stability of a water medium, the cooling temperature of the materials can be accurately controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying towers, and in particular relates to a segmented cooling spray-type downstream drying tower. Background Art

[0002] High-speed centrifugal spray drying is the most widely used process in liquid forming and drying industries. Its principle is to spray air or water vapor from a nozzle at high speed, separate the liquid into fine droplets by friction, and make them fully contact with hot air to form heat exchange. It is often used to dry some heat-sensitive liquids, suspensions and viscous liquids, such as medicines. Of course, it can also be used to dry fuels, intermediates, soap powder and inorganic salts.

[0003] In the prior art, spray dryers often use hot air to dry the heated spray, and then use an air cooling system or a water cooling system to cool the material. However, it is often difficult to control the cooling temperature with air cooling, and the cooling effect is average. Although water cooling can better control the cooling temperature, the cooling effect is single, and it cannot achieve a good cooling effect when encountering the production of some materials that require variable temperature cooling. Utility Model Content

[0004] The utility model aims to provide a segmented cooling spray-type downstream drying tower which can accurately control the cooling temperature, has a large cooling temperature span and can perform multi-stage variable temperature cooling, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A segmented cooling spray-type downstream drying tower comprises a cyclone tower body, the cyclone tower body comprises a cylindrical portion and a water-cooling cone, the cylindrical portion comprises a cylindrical liner and a circulating air-cooling jacket, the circulating air-cooling jacket surrounds the cylindrical liner, so that an air-cooling channel is left between the circulating air-cooling jacket and the cylindrical liner. Circulating air flows inside the air-cooling channel to cool the material, and the circulating air and the material exchange heat through the cylindrical liner made of metal, thereby achieving a cooling effect.

[0007] The cylindrical part is arranged vertically, and the upper end of the cylindrical part is connected with a material interface and a hot air interface. The material interface is used to connect the atomized material, and the hot air interface is connected with hot air for drying the material.

[0008] The lower end of the cylindrical portion is fixedly connected to the water-cooling cone, the tip of the water-cooling cone is downward, and the water-cooling cone includes a conical inner shell and a conical jacket, and a water-cooling channel is left between the conical inner shell and the conical jacket. Cooling water flows through the water-cooling channel inside the water-cooling cone to cool the material. The circulating water and the material exchange heat with the metal cylindrical inner shell, thereby achieving a cooling effect.

[0009] During the falling process, the material is first heated and dried by hot air, then part of the heat is taken away by circulating air cooling, thus cooling down, and then falls into the water cooling cone and part of the heat is taken away by the water flow, thus cooling down again, thus forming a segmented cooling of air cooling and water cooling, so that the material can be cooled step by step during the falling process, and due to the relative stability of the water medium, the cooling temperature of the material can be precisely controlled. In addition, since the equipment adopts the process of separating the cooling medium from the material, this greatly reduces the contamination of the cooling medium on the material, making the produced product more pure.

[0010] Further, the cylindrical portion is connected to a circulating air inlet and a circulating air outlet, the circulating air inlet is arranged on the upper side of the cylindrical portion, and the circulating air outlet is arranged on the lower side of the cylindrical portion.

[0011] Furthermore, the conical jacket is connected with a water cooling inlet and a water cooling outlet, the water cooling inlet is arranged on the lower side of the conical surface of the water cooling cone, and the water cooling outlet is arranged on the upper side of the conical surface of the water cooling cone.

[0012] Furthermore, an umbrella-shaped spray device is connected to the upper end of the cylindrical portion, and the umbrella-shaped spray device is connected to the material interface. The umbrella-shaped spray device rotates and sprays the atomized material on the inner wall of the cylindrical liner.

[0013] Furthermore, the hot air interface is connected to the tangential direction of the cylindrical part, and the tangential direction makes the vortex direction of the hot air consistent with the direction in which the material is sprayed. The advantages of downstream drying are fast drying speed, uniform temperature, good drying effect and simple operation. At the same time, the drying air temperature is high, which can save energy.

[0014] Furthermore, a material outlet is provided on one side of the tip of the water-cooling cone, and the material falls out directly from the boring outlet.

[0015] Furthermore, an air outlet ring pipe is connected to the outer side of the cyclone tower body, the air outlet ring pipe is arranged at the boundary between the cylindrical part and the water cooling cone, and the air outlet ring pipe is directly connected to the interior of the cylindrical liner. The air outlet ring pipe cooperates with the hot air interface to allow hot air to flow in the drying tower.

[0016] Furthermore, an adaptive ear seat is connected to the outer side of the circulating air jacket, and the adaptive ear seat is used to be connected to its fixing device to realize the support of the drying tower.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The air-cooling channel and the water-cooling channel are formed by means of a jacket, and the two simultaneously cool the atomized material, forming a segmented cooling of air cooling and water cooling, so that the material can be cooled step by step during the descent process, and due to the relative stability of the water medium, the cooling temperature of the material can be accurately controlled. In addition, since the equipment adopts a process of separating the cooling medium from the material, this greatly reduces the contamination of the cooling medium on the material, making the produced product more pure.

[0019] 2. The hot air interface is connected to the tangent direction of the cylindrical part, and the tangent direction makes the vortex direction of the hot air consistent with the direction in which the material is sprayed. The advantages of downstream drying are fast drying speed, uniform temperature, good drying effect, simple operation, and high drying air temperature, which can save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 It is a cross-sectional view of the utility model;

[0022] Figure 2 for Figure 1 A partial cross-sectional view of

[0023] Figure 3 It is a structural schematic diagram of the air outlet ring pipe in the utility model;

[0024] Figure 4 for Figure 3 A top view of

[0025] Figure 5 It is a structural schematic diagram of the material interface in the utility model;

[0026] In the figure: 1. Cyclone tower body; 2. Cylindrical part; 3. Water-cooling cone; 4. Cylindrical liner; 5. Circulating air cooling jacket; 6. Air cooling flow channel; 7. Material interface; 8. Hot air interface; 9. Conical liner; 10. Conical jacket; 11. Water cooling flow channel; 12. Circulating air inlet; 13. Circulating air outlet; 16. Water cooling inlet; 17. Water cooling outlet; 18. Umbrella-shaped spray device; 19. Material outlet; 20. Air outlet ring pipe; 21. Adaptive ear seat. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-Figure 5 , a technical solution proposed by the utility model:

[0029] A segmented cooling spray type downstream drying tower comprises a cyclone tower body 1, wherein the cyclone tower body 1 comprises a cylindrical portion 2 and a water-cooling cone 3.

[0030] In this embodiment, further, the cylindrical portion 2 includes a cylindrical inner liner 4 and a circulating air cooling jacket 5, and the circulating air cooling jacket 5 surrounds the cylindrical inner liner 4, so that an air cooling channel 6 is left between the circulating air cooling jacket 5 and the cylindrical inner liner 4. An adaptive ear seat 21 is connected to the outer side of the circulating air cooling jacket 5.

[0031] In this embodiment, further, the cylindrical portion 2 is horizontally divided into two sections, and the height of the dividing line is set so that the user can easily observe the internal conditions after the upper and lower sections of the cylindrical portion 2 are separated. The cylindrical portion 2 is connected to a circulating air inlet 12 and a circulating air outlet 13, wherein the circulating air inlet 12 is arranged on the upper side of the cylindrical portion 2, and the circulating air outlet 13 is arranged on the lower side of the cylindrical portion 2.

[0032] In this embodiment, further, the cylindrical portion 2 is vertically arranged, and the upper end of the cylindrical portion 2 is connected with a material interface 7 and a hot air interface 8. The upper end of the cylindrical portion 2 is connected with an umbrella-shaped spray device 18, and the umbrella-shaped spray device 18 is connected to the material interface 7. The lower end of the cylindrical portion 2 is fixedly connected to the water-cooling cone 3, the tip of the water-cooling cone 3 is downward, and a material outlet 19 is provided on one side of the tip of the water-cooling cone 3. The water-cooling cone 3 includes a conical liner 9 and a conical jacket 10, and a water-cooling flow channel 11 is left between the conical liner 9 and the conical jacket 10. The conical jacket 10 is connected with a water-cooling inlet 16 and a water-cooling outlet 17, the water-cooling inlet 16 is arranged on the lower side of the conical surface of the water-cooling cone 3, and the water-cooling outlet 17 is arranged on the upper side of the conical surface of the water-cooling cone 3. The hot air interface 8 is connected to the tangential direction of the cylindrical portion 2, and the tangential direction makes the vortex direction of the hot air consistent with the direction in which the material is sprayed.

[0033] In this embodiment, further, an air outlet ring pipe 20 is connected to the outer side of the cyclone tower body 1, and the air outlet ring pipe 20 is arranged at the boundary between the cylindrical part 2 and the water-cooling cone 3, and the air outlet ring pipe 20 is directly connected to the interior of the cylindrical liner 4.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A segmented cooling spray-type downstream drying tower, comprising a cyclone tower body (1), characterized in that: The cyclone tower body (1) comprises a cylindrical portion (2) and a water-cooled cone (3); the cylindrical portion (2) comprises a cylindrical inner liner (4) and a circulating air-cooled jacket (5); the circulating air-cooled jacket (5) surrounds the cylindrical inner liner (4) so ​​that an air-cooled flow channel (6) is left between the circulating air-cooled jacket (5) and the cylindrical inner liner (4); the cylindrical portion (2) is vertically arranged; the upper end of the cylindrical portion (2) is connected to a material interface (7) and a hot air interface (8); the lower end of the cylindrical portion (2) is fixed The water-cooling cone (3) is connected, and the tip of the water-cooling cone (3) is downward; the water-cooling cone (3) comprises a conical inner shell (9) and a conical jacket (10), and a water-cooling flow channel (11) is left between the conical inner shell (9) and the conical jacket (10); the upper part of the cylindrical part (2) is connected with a circulating air inlet (12) and a circulating air outlet (13), and the circulating air inlet (12) is arranged on the upper side of the cylindrical part (2), and the circulating air outlet (13) is arranged on the lower side of the cylindrical part (2).

2. A segmented cooling spray-type downstream drying tower according to claim 1, characterized in that: The conical jacket (10) is connected to a water cooling inlet (16) and a water cooling outlet (17); the water cooling inlet (16) is arranged on the lower side of the conical surface of the water cooling cone (3), and the water cooling outlet (17) is arranged on the upper side of the conical surface of the water cooling cone (3).

3. A segmented cooling spray-type downstream drying tower according to claim 2, characterized in that: An umbrella-shaped spray device (18) is connected to the upper end of the cylindrical portion (2), and the umbrella-shaped spray device (18) is connected to the material interface (7).

4. A segmented cooling spray-type downstream drying tower according to claim 3, characterized in that: The hot air interface (8) is connected to the cylindrical portion (2) in a tangential direction, and the tangential direction makes the vortex direction of the hot air consistent with the direction in which the material is sprayed.

5. A segmented cooling spray-type downstream drying tower according to claim 4, characterized in that: A material outlet (19) is provided on one side of the tip of the water-cooling cone (3).

6. A segmented cooling spray-type downstream drying tower according to claim 5, characterized in that: An air outlet ring pipe (20) is connected to the outer side of the cyclone tower body (1); the air outlet ring pipe (20) is arranged at the boundary between the cylindrical portion (2) and the water-cooling cone (3); and the air outlet ring pipe (20) is directly connected to the interior of the cylindrical inner tank (4).

7. A segmented cooling spray-type downstream drying tower according to any one of claims 1 to 6, characterized in that: An adaptive ear seat (21) is connected to the outer side of the circulating air cooling jacket (5).

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