Spray drying device for milk powder processing

Abstract

The utility model discloses a spray drying device for milk powder processing, and belongs to the technical field of milk powder processing. Liquid milk to be subjected to spray drying is put into the spray dryer body, hot air is conveyed into the water inlet pipe through the heat inlet pipe to heat sprayed water, the sprayed water is atomized through the atomizing head and then is subjected to spray drying on the liquid milk, the temperature in the housing can continuously rise in the atomizing process, the heat absorption curtain is placed on the top of the housing, and the heat absorption curtain is arranged on the top of the housing. Part of heat is absorbed through the heat absorption curtain, the temperature in the cover shell is reduced, the cold spraying pipe can also convey cold air, and the cold air is conveyed into the cover shell through the ventilation through holes in the surface of the supporting disc for cooling. When the spray dryer body does not work, the internal temperature of the body is low, and in order to reduce the internal temperature difference, the cold-heat exchanger is started for temperature exchange, so that the internal temperature of the body is rapidly increased to the corresponding temperature, milk powder cannot be affected by temperature difference changes, and the spray drying efficiency is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of milk powder processing, in particular to a spray drying device for milk powder processing. Background Art

[0002] Milk powder is a powder obtained by removing almost all the water in milk by freezing or heating and then drying.

[0003] During the spray drying process of milk powder, the temperature often changes, which affects the atomization and drying quality of milk powder and the overall drying efficiency. Summary of the Utility Model

[0004] Objective of the utility model: To provide a spray drying device for milk powder processing to solve the above problems existing in the prior art.

[0005] Technical solution: A spray drying device for milk powder processing includes a bottom plate, on which a spray drying machine body is fixedly installed. A heat exchange device is also arranged on the bottom plate, and the heat exchange device is communicated with the spray drying machine body;

[0006] The heat exchange device includes a heat inlet pipe, a cold air pipe and a heat exchanger. The heat exchanger is fixedly installed on the bottom plate and is fixedly connected to the heat inlet pipe and the cold air pipe at both ends respectively. The heat inlet pipe is communicated with the front end of the spray drying machine body, and the cold air pipe is communicated with the rear end of the spray drying machine body.

[0007] In a further embodiment, a water inlet pipe and a spray cooling pipe are arranged inside the spray drying machine body. The heat inlet pipe is communicated with the water inlet pipe, and the spray cooling pipe is communicated with the cold air pipe.

[0008] In a further embodiment, an atomization assembly is arranged inside the spray drying machine body. The atomization assembly includes a water spraying disc, a water spraying pipe and an atomization head. The water spraying disc is communicated with the water inlet pipe. One end of the water spraying pipe is communicated with the water spraying disc, and the atomization head is arranged at the other end.

[0009] In a further embodiment, a fan blade is sleeved on the water inlet pipe near the lower part of the water spraying disc.

[0010] In a further embodiment, the spray drying machine body includes a fixed base and a housing. The fixed base is arranged on the bottom plate, and the housing is connected to the fixed base in a snap-fit manner.

[0011] In a further embodiment, a support disc is arranged at the snap-fit connection of the fixed base and the housing.

[0012] In a further embodiment, a plurality of ventilation through holes are formed on the surface of the support disc.

[0013] In a further embodiment, a heat-absorbing curtain is provided at the top of the housing. Beneficial effects

[0014] Put the liquid milk to be spray-dried into the interior of the spray dryer body. The heat inlet pipe sends hot air into the water inlet pipe to heat the sprayed water. After atomization by the atomizing head, it atomizes and dries the liquid milk. During the atomization process, the temperature inside the housing will continue to rise. Place a heat-absorbing curtain on the top of the housing to absorb part of the heat and reduce the temperature inside the housing. The cold spray pipe can also deliver cold air, and the cold air is delivered into the housing through the ventilation through holes on the surface of the support plate for cooling; when the spray dryer body is not working, the temperature inside the body is relatively low. In order to reduce the internal temperature difference, turn on the heat exchanger for temperature exchange to quickly raise the internal temperature to the corresponding temperature, so that the milk powder will not be affected by the temperature difference change and ensure the atomization and drying efficiency. Description of the drawings

[0015] Figure 1 is a perspective view of the present utility model.

[0016] Figure 2 is a top internal view of the present utility model.

[0017] Figure 3 is a side internal view of the present utility model.

[0018] The reference numerals are: 1, heat inlet pipe; 2, heat exchanger; 3, bottom plate; 4, cold air pipe; 5, spray dryer body; 6, housing; 7, heat-absorbing curtain; 8, atomizing head; 9, fan blade; 10, water spray pipe; 11, water spray disc; 12, support disc; 13, cold spray pipe; 14, water inlet pipe. Detailed implementation manners

[0019] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model.

[0020] However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details.

[0021] In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0022] As Figures 1-3 shown, a spray drying device for milk powder processing is composed of a heat inlet pipe 1, a heat exchanger 2, a bottom plate 3, a cold air pipe 4, a spray dryer body 5, a housing 6, a heat-absorbing curtain 7, an atomizing head 8, a fan blade 9, a water spray pipe 10, a water spray disc 11, a support disc 12, a cold spray pipe 13, and a water inlet pipe 14.

[0023] The spray dryer body 5 is fixedly installed on the bottom plate 3, and a heat exchange device is also arranged on the bottom plate 3. The heat exchange device is communicated with the spray dryer body 5;

[0024] The heat exchange device includes an inlet heat pipe 1, a cold air pipe 4, and a cold and heat exchanger 2. The cold and heat exchanger 2 is fixedly installed on the bottom plate 3 and is fixedly connected to the inlet heat pipe 1 and the cold air pipe 4 at both ends. The inlet heat pipe 1 is communicated with the front end of the spray dryer body 5, and the cold air pipe 4 is communicated with the rear end of the spray dryer body 5.

[0025] An inlet water pipe 14 and a spray cold pipe 13 are arranged inside the spray dryer body 5. The inlet heat pipe 1 is communicated with the inlet water pipe 14, and the spray cold pipe 13 is communicated with the cold air pipe 4.

[0026] An atomization assembly is arranged inside the spray dryer body 5. The atomization assembly includes a water spraying disc 11, a water spraying pipe 10, and an atomization head 8. The water spraying disc 11 is communicated with the inlet water pipe 14. One end of the water spraying pipe 10 is communicated with the water spraying disc 11, and the atomization head 8 is arranged at the other end.

[0027] A fan blade 9 is sleeved on the inlet water pipe 14 below the water spraying disc 11.

[0028] The spray dryer body 5 includes a fixed base and a housing 6. The fixed base is arranged on the bottom plate 3, and the housing 6 is snap-connected to the fixed base.

[0029] A support disc 12 is arranged at the snap connection of the fixed base and the housing 6.

[0030] A number of ventilation through holes are opened on the surface of the support disc 12. It is convenient for heat circulation, and the generated cold air can neutralize the high temperature inside the housing 6 to keep it at the corresponding drying temperature and ensure the drying efficiency.

[0031] An endothermic curtain 7 is arranged on the top of the housing 6. The heat inside the housing 6 is adsorbed through the endothermic curtain 7 to play a certain heat preservation effect.

[0032] Working principle

[0033] Put the liquid milk to be spray-dried into the spray dryer body 5. The inlet heat pipe 1 sends hot air into the inlet water pipe 14 to heat the sprayed water. After being atomized by the atomization head 8, it is atomized and dried to the liquid milk. During the atomization process, the temperature inside the housing 6 will continue to rise. An endothermic curtain 7 is placed on the top of the housing 6, and part of the heat is absorbed through the endothermic curtain 7 to reduce the temperature inside the housing 6. The spray cold pipe 13 can also conduct cold air transmission, and the cold air is transmitted into the housing 6 through the ventilation through holes on the surface of the support disc 12 for cooling; when the spray dryer body 5 is not working, the temperature inside the body is relatively low. In order to reduce the internal temperature difference, the cold and heat exchanger 2 is turned on for temperature exchange to quickly raise its internal temperature to the corresponding temperature, so that the milk powder will not be affected by the temperature difference change and ensure the atomization and drying efficiency.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "linkage", and "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated herein.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A spray drying device for milk powder processing, comprising a bottom plate (3), characterized in that, A spray dryer body (5) is fixedly installed on the bottom plate (3), and a heat exchange device is also arranged on the bottom plate (3), and the heat exchange device is communicated with the spray dryer body (5); The heat exchange device includes a heat inlet pipe (1), a cold air pipe (4), and a cold and heat exchanger (2). The cold and heat exchanger (2) is fixedly installed on the bottom plate (3) and is fixedly connected to the heat inlet pipe (1) and the cold air pipe (4) at both ends respectively. The heat inlet pipe (1) is communicated with the front end of the spray dryer body (5), and the cold air pipe (4) is communicated with the rear end of the spray dryer body (5).

2. The spray drying device for milk powder processing according to claim 1, wherein, A water inlet pipe (14) and a cold spray pipe (13) are arranged inside the spray dryer body (5). The heat inlet pipe (1) is communicated with the water inlet pipe (14), and the cold spray pipe (13) is communicated with the cold air pipe (4).

3. The spray drying device for milk powder processing according to claim 2, characterized in that, An atomization assembly is arranged inside the spray dryer body (5). The atomization assembly includes a water spraying disc (11), a water spraying pipe (10), and an atomization head (8). The water spraying disc (11) is communicated with the water inlet pipe (14), one end of the water spraying pipe (10) is communicated with the water spraying disc (11), and the atomization head (8) is arranged at the other end.

4. The spray drying device for milk powder processing according to claim 3, characterized in that, A fan blade (9) is sleeved on the water inlet pipe (14) near the lower side of the water spraying disc (11).

5. The spray drying device for milk powder processing according to claim 1, characterized in that, The spray dryer body (5) includes a fixed base and a housing (6). The fixed base is arranged on the bottom plate (3), and the housing (6) is connected to the fixed base in a snap-fit manner.

6. The spray drying device for milk powder processing according to claim 5, characterized in that, A support disc (12) is arranged at the snap-fit connection of the fixed base and the housing (6).

7. The spray drying device for milk powder processing according to claim 6, characterized in that, A plurality of ventilation through holes are formed on the surface of the support disc (12).

8. The spray drying device for milk powder processing according to claim 5, characterized in that, A heat absorption curtain (7) is arranged at the top of the housing (6).

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