A vacuum dehydration device for producing goat milk powder

Abstract

The invention discloses a vacuum dehydration device for goat milk powder production, which relates to the technical field of goat milk powder production, and comprises a grouting tank, wherein the outside of the grouting tank is connected to a triple-effect tank through a pipeline, a flash tank is arranged on one side of the triple-effect tank, a pair of stacked rotating knives are rotatably connected to the bottom of the flash tank, a pressure relief pipe is fixedly connected to the bottom of the flash tank, a plurality of striking blocks are fixedly arranged on the inner wall of the flash tank in sequence from top to bottom, and a transition zone is formed between two adjacent striking blocks. In the vacuum dehydration device for goat milk powder production, a striking surface is at a low position of the striking block, and the striking surface is in an arc shape, so that milk powder particles can be impacted and ejected at different angles, thereby reducing the flow rate of milk powder particles of different masses and sizes passing through a common flow channel, thereby improving the evaporation efficiency of the milk powder particles.

Description

Technical Field

[0001] The invention relates to the technical field of goat milk powder production, in particular to a vacuum dehydration device for goat milk powder production. Background Art

[0002] The existing goat milk powder is made by concentrating and evaporating goat milk during the production process. The dehydration process involves two core processing equipment, a triple-effect tank and a flash tank. When the goat milk passes through the triple-effect tank, 80% of the water in the goat milk is evaporated by the triple-effect tank to make the goat milk into a cream. The cream-like goat milk is then transported through a pipeline and squeezed into the flash tank for flash evaporation. The goat milk is broken up by a stirring device inside the flash tank. After a second heating, all the water contained in the goat milk is evaporated and gasified, making the goat milk a powdery substance, thereby completing the production of goat milk powder.

[0003] The existing flash tank adopts a vacuum pressure difference processing method to flash the goat milk when processing goat milk. First, the cream-like goat milk is heated, and a pressure reducing valve is connected to the flash tank pipeline. The pressure reducing valve reduces the pressure inside the flash tank, and the cream-like goat milk is squeezed to complete the pressurization operation, and then squeezed into the side of the agitator, so that the boiling point of the cream-like goat milk in the flash tank is reduced. Under the rotation of the agitator, the cream-like goat milk is broken up, so that the moisture on the surface of the cream-like goat milk evaporates quickly, and then it is input into the cyclone separator through the pipeline above the flash tank for air drying again, and larger particles of dust are driven into the bottom of the cyclone separator, and the fine dust and humid hot gas are discharged into the bag filter for isolation and screening, and the humid hot gas is discharged to the outside of the bag filter to complete the dehydration process of the goat milk.

[0004] There are still many problems in flash drying equipment. When drying goat milk into milk powder, the drying effect is not ideal when the dairy product is a sticky material. There is an inverted cone structure at the bottom of the flash tank. The heated hot air enters the bottom of the tank, generating spiral wind that circulates up and down inside the flash tank to dry and heat the chopped goat milk inside the flash tank. However, the existing agitator blade structure is relatively simple and the rotation mode is fixed, resulting in an insignificant breaking effect and coarse wet material particles. Therefore, the chopped effect of goat milk powder particles of different sizes is not obvious. When drying and dehydrating, goat milk powder particles of different sizes will float to the top of the flash tank with the hot air, and then the milk powder with larger particle size will fall back to the bottom of the flash tank due to gravity and be broken again by the agitator. The milk powder with larger particle size will also hinder the rising milk powder during the falling process, which prolongs the drying time of the wet material. Therefore, we propose a vacuum dehydration device for goat milk powder production. Summary of the invention

[0005] The object of the present invention is to provide a vacuum dehydration device for producing goat milk powder to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a vacuum dehydration device for producing goat milk powder, comprising a grouting tank, the outside of which is connected to a triple-effect tank through a pipeline, a flash tank is arranged on one side of the triple-effect tank, a pair of stacked rotating knives are rotatably connected to the bottom of the flash tank, a pressure discharge pipe is fixedly connected to the bottom of the flash tank, a plurality of striking blocks are fixedly arranged on the inner wall of the flash tank from top to bottom, a transition zone is formed between two adjacent striking blocks, the inner circle of each striking block is away from the inner wall of the flash tank and is connected to each transition zone, forming a striking surface close to the inner wall of the flash tank and an arched portion away from the inner wall of the flash tank, a multi-layer stratified screen is fixedly installed inside the flash tank, and the sieve apertures on the stratified screen from the bottom layer to the high layer gradually decrease in diameter, a sieving material booster for discharging the lifted milk powder onto the striking block for striking is rotatably connected to the middle part of the flash tank, a common flow channel is formed between the sieving material booster and the flash tank, and the common flow channel is communicated with the stratified screen.

[0007] Preferably, an isolation net is fixedly installed on the inner top of the flash tank, a spiral feeder is connected to the outer top of the flash tank through a pipeline, and a charging tank is connected to one side of the top of the spiral feeder.

[0008] Preferably, an air intake pipe is fixedly connected to one side of the pressure relief pipe, a pump pipe is fixedly connected between the triple-effect tank and the flash tank, the pump pipe is communicated with the pressure relief pipe, one end of the pressure relief pipe is fixedly connected to a second motor, a spiral sheet is sleeved on the output shaft of the second motor, and one end of the spiral sheet is connected to the air intake pipe.

[0009] Preferably, a first motor is fixedly connected to the bottom of the flash tank, and the output shaft of the first motor is connected to the rotating knife through a sleeve belt. A fixed seat is fixedly connected to the bottom of the flash tank, and cutting teeth are fixedly installed on the rotating knife and the fixed seat. A grinding plate is fixedly installed on the end of each rotating knife, and the grinding plate is in contact with the inner wall of the flash tank.

[0010] Preferably, a conical seat is rotatably connected to the middle of the flash tank, and the conical seat is fixedly connected to the uppermost rotating knife. The screening material booster includes a connecting rod fixed to the middle of the conical seat. The top of the layered screen from bottom to top is rotatably connected to the first rotating drum and the second rotating drum in sequence. The bottoms of the first rotating drum and the second rotating drum are fixedly connected to gear rings. The conical seat and the top of the first rotating drum are fixedly installed with a first gear, and each of the layered screens is fixedly installed with a second gear. The first gear drives the second gear to rotate, thereby causing the gear ring to rotate.

[0011] Preferably, the diameter of the first gear on the conical seat is larger than the diameter of the first gear on the first rotating drum, and the diameter of the second gear on the layered screen at the bottom layer is smaller than the diameter of the second gear on the layered screen at the middle layer.

[0012] Preferably, the screening booster also includes a plurality of material receiving plates fixedly installed on the conical seat, the first rotating drum and the outer ring of the second rotating drum, a grab plate fixedly installed on one side of each material receiving plate, a grab piece fixedly installed on the top of the material receiving plate, a centrifugal plate fixedly installed on the top of the grab piece, and a baffle fixedly installed on the other side of the material receiving plate. When the milk powder particles bounce off the striking surface, they are transferred through the rotating material receiving plate and along the grab piece to the side of the centrifugal plate. The centrifugal plate rotates to generate centrifugal force, which discharges the milk powder particles to the striking block, thereby crushing the milk powder particles.

[0013] Preferably, a cleaning rod is fixedly mounted at the bottom of each receiving plate at the bottom layer in the flash tank, and the movement track of the cleaning rod is located between the grinding plate and the flash tank.

[0014] Preferably, the distance between the grab plate located inside the flash tank and the inner wall of the flash tank decreases step by step from bottom to top.

[0015] Preferably, the surface of each striking block is made of smooth material, and the number of the stratified screens is at most three, and the distance between two adjacent stratified screens is equal.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The striking surface of the present invention is located at the lower position of the striking block, and the striking surface is in an arc shape, which can produce collisions and ejections of milk powder particles at different angles, thereby reducing the flow rate of milk powder particles of different masses and sizes passing through a common flow channel, thereby improving the evaporation efficiency of the milk powder particles and reducing the surface humidity of the milk powder particles. At the same time, due to the different masses of the milk powder particles, the kinetic energy when they collide with the striking surface is different. The larger the mass of the milk powder particles, the greater the kinetic energy and the greater the elasticity, so the closer they are to the screening booster. The smaller the mass of the milk powder particles, the smaller the kinetic energy, and the milk powder particles are directly discharged to the top of the flash tank through the gas. The screening booster is a multi-layer structure, which can recycle the larger mass of the milk powder particles for many times, and the centrifugal force hits the striking surface of the striking block again to crush the larger mass of the milk powder particles for many times, and the larger mass of the milk powder particles and the smaller mass of the milk powder particles are separated and processed, thereby effectively saving processing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention from another perspective;

[0020] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 4 It is a schematic diagram of the structure inside the flash tank of the present invention;

[0022] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 6 It is a schematic diagram of the structure of the fixed seat and the rotating knife of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the material receiving plate and the baffle plate of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the conical seat, the first rotating drum and the second rotating drum of the present invention;

[0026] Fig. 9 This is a schematic diagram of the flow process of milk powder particles inside the flash tank of the present invention;

[0027] Fig.10 It is a schematic diagram of the working principle of the striking block of the present invention.

[0028] In the figure: 1-grouting tank; 2-three-effect tank; 3-flash tank; 4-screw feeder; 5-charging tank; 6-pump pipe; 7-first motor; 8-pressure discharge pipe; 9-second motor; 10-spiral plate; 11-inlet pipe; 12-isolation net; 13-layered screen; 14-receiving plate; 15-strike block; 1501-strike surface; 1502-arched part; 1503-transition zone; 16-grabbing piece; 17-fixed seat; 18-rotating knife; 19-grinding plate; 20-cutting teeth; 21-centrifugal plate; 22-baffle; 23-grabbing plate; 24-cleaning rod; 25-conical seat; 26-first rotating drum; 27-second rotating drum; 28-connecting rod; 29-first gear; 30-second gear; 31-gear ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-10The present invention provides a technical solution: a vacuum dehydration device for goat milk powder production, comprising a grouting tank 1, wherein the outside of the grouting tank 1 is connected to a triple-effect tank 2 through a pipeline, the triple-effect tank 2 evaporates the water in the goat milk powder in two stages, and the goat milk powder presents a cheese shape, a flash tank 3 is arranged on one side of the triple-effect tank 2, a pair of stacked rotating knives 18 are rotatably connected to the bottom of the flash tank 3, a pressure relief pipe 8 is fixedly connected to the bottom of the flash tank 3, (wherein a pressure reducing valve is installed on the pressure relief pipe 8, so that the inside of the flash tank 3 is in a low-pressure environment, so that a vacuum environment is presented between the triple-effect tank 2 and the flash tank 3), a plurality of striking blocks 15 are fixedly arranged on the inner wall of the flash tank 3 from top to bottom, and a transition zone 1503 is formed between two adjacent striking blocks 15, The inner circle of each striking block 15 is away from the inner wall of the flash tank 3 and connected to each transition zone 1503, forming a striking surface 1501 close to the inner wall of the flash tank 3 and an arched portion 1502 away from the inner wall of the flash tank 3. A multi-layer stratified screen 13 is fixedly installed inside the flash tank 3, and the sieve hole diameters on the stratified screen 13 gradually decrease from the bottom layer to the upper layer. A sieving material booster for discharging the lifted milk powder onto the striking block 15 for striking is rotatably connected to the middle part of the flash tank 3. A common flow channel is formed between the sieving material booster and the flash tank 3, and the common flow channel and the stratified screen 13 are connected; an isolation net 12 is fixedly installed on the top of the flash tank 3, and a spiral feeder 4 is connected to the outer top of the flash tank 3 through a pipeline, and a charging tank 5 is connected to one side of the top of the spiral feeder 4;An air inlet pipe 11 is fixedly connected to one side of the pressure relief pipe 8, a pump pipe 6 is fixedly connected between the triple-effect tank 2 and the flash tank 3, the pump pipe 6 is communicated with the pressure relief pipe 8, one end of the pressure relief pipe 8 is fixedly connected to a second motor 9, a spiral sheet 10 is sleeved on the output shaft of the second motor 9, and one end of the spiral sheet 10 is connected to the air inlet pipe 11. When the device starts to produce milk powder, the fluid milk is first pumped into the grouting tank 1 for low-temperature storage by a pump, and then the low-temperature milk is pumped out from the grouting tank 1 to the triple-effect tank 2 by a pump to pre-evaporate the water, and after the triple-effect tank 2 evaporates the water from the low-temperature milk, the cheese-like milk is finally pumped into the flash tank 3 by a pump. When the cheese-like milk is pumped into the flash tank 3, the second motor 9 is turned on at the same time to rotate, and the second motor 9 rotates the spiral sheet 10 to rotate, so that the cheese-like milk is drawn into Inside the flash tank 3, the air inlet pipe 11 inputs high-pressure and high-temperature gas into the flash tank 3, and the water in the cheese-like milk inside the flash tank 3 is evaporated instantly. The rotating knife 18 rotates to break the milk into powder, and the high-pressure and high-temperature gas generates a spiral loop at the bottom of the flash tank 3 (existing technology), and blows the powdered milk powder into the upper part of the flash tank 3. In this process, a common flow channel is formed between the screening booster and the flash tank 3 for milk powder of different sizes to pass through. When the milk powder passes through the common flow channel, part of the milk powder contacts the striking block 15, and the milk powder is broken when it encounters the striking surface 1501 of the striking block 15, forming a plurality of small particles of milk powder. Finally, the milk powder particles are transferred again through the spiral feeder 4, and then discharged into the charging tank 5. The charging tank 5 has a bag separator (existing structure) inside to separate the milk powder and the gas, such as; Figure 9-10 As shown, the striking surface 1501 is at the lower position of the striking block 15, and the striking surface 1501 is in an arc shape, which can produce collisions and ejections of milk powder particles at different angles, thereby reducing the flow rate of milk powder particles of different sizes passing through the common flow channel, thereby improving the evaporation efficiency of the milk powder particles and reducing the surface humidity of the milk powder particles. At the same time, due to the different masses of the milk powder particles, the kinetic energy when they hit the striking surface 1501 is different. The larger the mass of the milk powder particles, the greater the kinetic energy and the greater the elasticity, so the closer they are to the screening booster. The smaller the mass of the milk powder particles, the smaller the kinetic energy, and the milk powder particles are directly discharged to the top of the flash tank 3 through the gas. The screening booster is a multi-layer structure, which can recycle the larger mass of milk powder particles for many times, and impact the striking surface 1501 of the striking block 15 again through the action of centrifugal force, and crush the larger mass of milk powder particles for many times, and separate the larger mass of milk powder particles from the smaller mass of milk powder particles, which effectively saves processing time.

[0031] Specifically, a first motor 7 is fixedly connected to the bottom of the flash tank 3, and the output shaft of the first motor 7 is connected to a rotating knife 18 through a sleeve belt. A fixed seat 17 is fixedly connected to the bottom of the flash tank 3. Cutting teeth 20 are fixedly installed on the rotating knife 18 and the fixed seat 17. A grinding plate 19 is fixedly installed on the end of each rotating knife 18. The grinding plate 19 is in contact with the inner wall of the flash tank 3. When the first motor 7 is turned on, the rotating knife 18 rotates, and the grinding plate 19 cuts the cream-like milk at the bottom of the flash tank 3, and blows the cream-like milk into the vicinity of the cutting teeth 20 through the spiral wind field. When the rotating knife 18 rotates, the fixed seat 17 and the rotating knife 18 are staggered, so that the cream-like milk is chopped.

[0032] Furthermore, a conical seat 25 is rotatably connected to the middle of the flash tank 3, and the conical seat 25 is fixedly connected to the rotating knife 18 of the uppermost layer. The screening material booster includes a connecting rod 28 fixed to the middle of the conical seat 25. The top of the stratified screen 13 from bottom to top is rotatably connected to the first rotating drum 26 and the second rotating drum 27 in sequence. The bottoms of the first rotating drum 26 and the second rotating drum 27 are fixedly connected to a gear ring 31. The conical seat 25 and the top of the first rotating drum 26 are fixedly installed with a first gear 29. A second gear 30 is fixedly installed on each of the stratified screens 13. The first gear 29 drives the second gear 30 to rotate, thereby causing the gear ring 31 to rotate. The diameter of the first gear 29 on the conical seat 25 is larger than the diameter of the first gear 29 on the first rotating drum 26. The second gear 31 on the stratified screen 13 at the bottom is fixedly installed with a first gear 29. 0 diameter is smaller than the diameter of the second gear 30 on the stratified screen 13 located in the middle layer; when the first motor 7 rotates, it drives the connecting rod 28 to rotate, the connecting rod 28 rotates to drive the conical seat 25 to rotate, the conical seat 25 rotates to drive the first gear 29 to rotate, the first gear 29 rotates to drive the second gear 30 to rotate, the second gear 30 rotates to drive the gear ring 31 located at the bottom of the first rotating drum 26 to rotate, so that the first rotating drum 26 is rotated, and similarly, after the first rotating drum 26, the first rotating drum 26 is meshed through the first gear 29, the second gear 30 and the gear ring 31, so that the second rotating drum 27 rotates synchronously, wherein the speed of the first rotating drum 26 is greater than that of the second rotating drum 27, and the second rotating drum 27 is at a low speed, so that the milk powder circulation space at the top of the flash tank 3 is increased, and the circulation amount of the milk powder at the top of the flash tank 3 is prevented from being reduced, so that the working efficiency of the device becomes low.

[0033] Furthermore, the screening booster also includes a plurality of material receiving plates 14 fixedly installed on the outer rings of the conical seat 25, the first rotating drum 26 and the second rotating drum 27, each of which has a grab plate 23 fixedly installed on one side of the material receiving plate 14, a grab sheet 16 fixedly installed on the top of the material receiving plate 14, a centrifugal plate 21 fixedly installed on the top of the grab sheet 16, and a baffle 22 fixedly installed on the other side of the material receiving plate 14. When larger-sized milk powder particles bounce off the striking surface 1501, they are transferred through the rotating material receiving plate 14 along the grab sheet 16 to the side of the centrifugal plate 21. The centrifugal plate 21 rotates to generate centrifugal force, which discharges larger-sized milk powder particles to the striking block 15 to crush the milk powder particles; a cleaning rod 24 is fixedly installed at the bottom of each material receiving plate 14 at the bottom layer in the flash tank 3, and the movement trajectory of the cleaning rod 24 is located between the grinding plate 19 and the flash tank 3; the grab plate 23 located inside the flash tank 3 moves away from the flash tank 3 from bottom to top. The distance between the inner wall of the tank 3 becomes smaller step by step. When the larger-sized milk powder particles pass through the striking surface 1501, the elastic force generated will bounce the milk powder to the grab plate 23. The grab plate 23 is connected and fixed to the conical seat 25, the first rotating drum 26 and the second rotating drum 27 through the receiving plate 14. Later, under the action of wind force, the milk powder particles on the receiving plate 14 are pushed to the side of the centrifugal plate 21 along the grab plate 16. The centrifugal plate 21 follows the rotation of the conical seat 25, the first rotating drum 26 and the second rotating drum 27 to generate centrifugal force. According to the centrifugal force formula F=mrw^2, the centrifugal force is proportional to the mass m of the object. The larger the mass of the object, the greater the centrifugal force it is subjected to. During the rotation process, the action of the centrifugal force will cause the object to deviate outward from the center of rotation. The larger the mass of the object, the greater the centrifugal force it will be subjected to, and thus it will be pushed away from the center of rotation and the farther away from the center of the circle. The milk powder particles are easy to contact the striking surface 1501 again to be crushed and dispersed again, thereby improving the quality of the finished milk powder particles.

[0034] The surface of each of the striking blocks 15 is made of smooth material to prevent milk powder from getting stuck on the striking block 15, and the number of the stratified screens 13 is at most three, and the distance between two adjacent stratified screens 13 is equal, so that the flow rate from the upper stratified screen 13 to the lower stratified screen 13 is equal.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum dehydration device for producing goat milk powder, comprising a grouting tank (1), characterized in that: The outside of the grouting tank (1) is connected to a triple-effect tank (2) via a pipeline, a flash tank (3) is arranged on one side of the triple-effect tank (2), a pair of stacked rotating knives (18) are rotatably connected to the bottom of the flash tank (3), a pressure relief pipe (8) is fixedly connected to the bottom of the flash tank (3), a plurality of striking blocks (15) are fixedly arranged on the inner wall of the flash tank (3) in sequence from top to bottom, a transition zone (1503) is formed between two adjacent striking blocks (15), the inner circle of each striking block (15) is away from the inner wall of the flash tank (3) and is in contact with each The transition zone (1503) is connected to form a striking surface (1501) close to the inner wall of the flash tank (3) and a bulged portion (1502) away from the inner wall of the flash tank (3); a plurality of layers of stratified screens (13) are fixedly installed inside the flash tank (3); the sieve apertures on the stratified screens (13) gradually decrease from the bottom layer to the upper layer; a sieving material booster is rotatably connected to the middle part of the flash tank (3) for discharging the lifted milk powder onto the striking block (15) for striking; a common flow channel is formed between the sieving material booster and the flash tank (3); the common flow channel is in communication with the stratified screens (13); A conical seat (25) is rotatably connected to the middle of the flash tank (3), the conical seat (25) is fixedly connected to the uppermost rotating knife (18), the screening material booster comprises a connecting rod (28) fixed to the middle of the conical seat (25), the top of the stratified screen (13) is rotatably connected to a first rotating drum (26) and a second rotating drum (27) in sequence from bottom to top, the bottoms of the first rotating drum (26) and the second rotating drum (27) are both fixedly connected to a gear ring (31), the conical seat (25) and the top of the first rotating drum (26) are both fixedly mounted with a first gear (29), each of the stratified screens (13) is fixedly mounted with a second gear (30), the first gear (29) drives the second gear (30) to rotate, thereby causing the gear ring (31) to rotate; The screening booster further comprises a plurality of material receiving plates (14) fixedly mounted on the outer rings of the conical seat (25), the first rotating drum (26) and the second rotating drum (27); a grab plate (23) fixedly mounted on one side of each material receiving plate (14); a grab sheet (16) fixedly mounted on the top of the material receiving plate (14); a centrifugal plate (21) fixedly mounted on the top of the grab sheet (16); and a baffle (22) fixedly mounted on the other side of the material receiving plate (14); when milk powder particles bounce off the striking surface (1501), they are transferred through the rotating material receiving plate (14) and along the grab sheet (16) to the side of the centrifugal plate (21); the centrifugal plate (21) rotates to generate centrifugal force, which discharges the milk powder particles toward the striking block (15), thereby crushing the milk powder particles.

2. A vacuum dehydration device for goat milk powder production according to claim 1, characterized in that: An isolation net (12) is fixedly installed on the inner top of the flash tank (3), a screw feeder (4) is connected to the outer top of the flash tank (3) via a pipeline, and a charging tank (5) is connected to one side of the top of the screw feeder (4).

3. A vacuum dehydration device for goat milk powder production according to claim 1, characterized in that: One side of the pressure relief pipe (8) is fixedly connected to an air intake pipe (11); a pump pipe (6) is fixedly connected between the triple-effect tank (2) and the flash tank (3); the pump pipe (6) and the pressure relief pipe (8) are in communication; one end of the pressure relief pipe (8) is fixedly connected to a second motor (9); a spiral sheet (10) is sleeved on an output shaft of the second motor (9); and one end of the spiral sheet (10) is connected to the air intake pipe (11).

4. A vacuum dehydration device for goat milk powder production according to claim 3, characterized in that: A first motor (7) is fixedly connected to the bottom of the flash tank (3); an output shaft of the first motor (7) is connected to a rotating knife (18) via a sleeve belt; a fixing seat (17) is fixedly connected to the bottom of the flash tank (3); cutting teeth (20) are fixedly mounted on the rotating knife (18) and the fixing seat (17); a grinding plate (19) is fixedly mounted on the end of each rotating knife (18); and the grinding plate (19) is in contact with the inner wall of the flash tank (3).

5. A vacuum dehydration device for goat milk powder production according to claim 1, characterized in that: The diameter of the first gear (29) located on the conical seat (25) is larger than the diameter of the first gear (29) located on the first rotating drum (26), and the diameter of the second gear (30) located on the layered screen (13) at the bottom layer is smaller than the diameter of the second gear (30) located on the layered screen (13) at the middle layer.

6. A vacuum dehydration device for producing goat milk powder according to claim 4, characterized in that: A cleaning rod (24) is fixedly mounted at the bottom of each receiving plate (14) at the bottom layer in the flash tank (3), and the movement track of the cleaning rod (24) is located between the grinding plate (19) and the flash tank (3).

7. A vacuum dehydration device for goat milk powder production according to claim 1, characterized in that: The distance between the grab plate (23) located inside the flash tank (3) and the inner wall of the flash tank (3) decreases step by step from bottom to top.

8. A vacuum dehydration device for goat milk powder production according to claim 1, characterized in that: The surface of each striking block (15) is made of a smooth material, and the number of the stratified screens (13) is at most three, and the distance between two adjacent stratified screens (13) is equal.

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