Concentration microfiltration device for freeze-dried raw milk

Abstract

The utility model relates to the technical field of separation devices, in particular to a concentration microfiltration device for freeze-dried raw milk, which is characterized in that a power source drives a first separation group to rotate anticlockwise, the first separation group is used for preliminarily filtering raw milk, and the power source drives a second separation group to rotate clockwise; the second separation group is used for carrying out secondary filtration on the raw milk, and the two power sources rotate in opposite directions, so that the materials and the membrane generate relative movement speed, ceramic membrane holes are prevented from being blocked, and a certain centrifugal effect on a fat part is achieved. Meanwhile, due to the vacuum degree of the innermost layer, part of water is evaporated to achieve a concentration effect. Discharging the feed liquid from a fourth discharge port, repeatedly circulating until the total number of bacteria is less than a specified value and the moisture content of the feed liquid is less than 70%, mixing the feed liquid with the pasteurized single cream, and homogenizing for later use. Through the process, the raw milk can be effectively concentrated and microfiltered, and the quality of the raw milk is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of separation device technology, and in particular to a microfiltration device for lyophilized raw milk concentration. Background Technology

[0002] A microfiltration device for freeze-dried raw milk concentration is used to concentrate raw milk. Raw milk contains high-quality protein, calcium, vitamins, etc. Proteins include casein and whey protein. Protein is an important component of the body, helping muscle growth and repair, while providing essential amino acids to support the immune system and hormone synthesis. Raw milk is a good source of calcium, a major component of bones and teeth, helping to maintain bone health and also participating in nerve conduction and muscle contraction. Vitamin A helps with vision health and strengthens the immune system, while vitamin B promotes calcium absorption and maintains bone health. Raw milk is a high-quality dairy product with high nutritional value, good stability, and convenient use, suitable for various occasions and people.

[0003] Traditional microfiltration devices for freeze-dried raw milk concentration mostly use disc centrifuges to separate fat from raw milk. These devices are not very effective at concentrating and filtering raw milk, and cannot guarantee the quality of the raw milk. Utility Model Content

[0004] The main objective of this invention is to provide a microfiltration device for lyophilized raw milk concentration, in order to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a microfiltration device for lyophilized raw milk concentration is provided, comprising: an outer cylinder assembly, the outer cylinder assembly being used to hold raw milk and discharge bacteria, impurities and milk fat;

[0006] The first separation group is rotatably disposed inside the outer cylinder group. The bottom of the first separation group is provided with a power source, which drives the first separation group to rotate in a counterclockwise direction. The first separation group performs preliminary filtration of raw milk.

[0007] The second separation group is rotatably located inside the first separation group. The bottom of the second separation group is equipped with a power source, which drives the second separation group to rotate in a clockwise direction. The second separation group performs secondary filtration on the raw milk.

[0008] Furthermore, the outer cylinder assembly includes an outer cylinder and a feed inlet assembly. The feed inlet assembly includes a feed inlet, a first discharge outlet, and a second discharge outlet. The feed inlet is fixedly located above the side wall of the outer cylinder, through which raw milk is added to the outer cylinder.

[0009] Further, the first discharge port is fixedly arranged at the top edge portion of the outer cylinder, and the cream formed after the raw cow milk is preliminarily filtered is discharged through the first discharge port; and the second discharge port is arranged at the lower edge of the side wall of the outer cylinder, and the impurities and bacteria after preliminary filtration are discharged through the second discharge port.

[0010] Further, the first separation group comprises a third discharge port, a preliminary separation group and a first separation shaft, the first separation shaft comprises a first MF microfiltration ceramic membrane, a first rotating shaft and a first separation chamber, and the preliminary separation group comprises the first separation chamber and a blade.

[0011] Further, the first rotating shaft is rotatably arranged in the outer cylinder, the outer wall of the first rotating shaft and the inner wall of the outer cylinder form the first separation chamber, the blade is fixedly arranged on the outer ring of the first rotating shaft in an inclined spiral downward manner and is slidably connected with the inner wall of the outer cylinder, and the blade is inclined downward by 30-45 degrees.

[0012] Further, the second separation chamber is located in the first rotating shaft, and the first MF microfiltration ceramic membrane is fixedly arranged on the outer ring of the first rotating shaft.

[0013] Further, the second separation group comprises a fourth discharge port and a second separation shaft, and the second separation shaft comprises a second MF microfiltration ceramic membrane, a third separation chamber and a second rotating shaft.

[0014] Further, the second rotating shaft is rotatably arranged in the first rotating shaft, the second MF microfiltration ceramic membrane is fixedly arranged on the outer ring of the second rotating shaft, and the third separation chamber is located in the second rotating shaft.

[0015] Further, a vacuum pump is fixedly arranged in the third separation chamber, and a steam outlet is arranged at the top of the third separation chamber.

[0016] Further, a guide pipe is fixedly arranged below the fourth discharge port, and the guide pipe guides the skimmed milk in the third separation chamber into the first separation chamber.

[0017] Compared with the prior art, the raw cow milk enters the upper layer of the first separation chamber, part of the microparticles with a diameter less than 0.45 μm passes through the gap of the first MF microfiltration ceramic membrane and enters the second separation chamber, another part of the microparticles with a diameter less than 0.45 μm passes through the gap of the blade and enters the lower part of the first separation chamber, and then passes through the gap below the first MF microfiltration ceramic membrane and enters the second separation chamber; the vacuum pump sucks the skimmed milk from outside to inside, the bacteria with a diameter of 0.3-0.45 μm are intercepted by the second MF microfiltration ceramic membrane, the skimmed milk flows down along the inner wall of the second MF microfiltration ceramic membrane and is discharged from the fourth discharge port; and through the above process, the raw cow milk can be effectively concentrated and micro-filtered, and the quality of the raw cow milk is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1The utility model discloses a whole schematic view.

[0019] Fig. 2 The utility model discloses a sectional structure schematic view.

[0020] Illustration:

[0021] 1, feed inlet, 2, first discharge port, 3, second discharge port, 4, third discharge port, 5, fourth discharge port, 6, first separation chamber, 7, first MF microfiltration ceramic membrane, 8, second MF microfiltration ceramic membrane, 9, third separation chamber, 10, first rotating shaft, 11, blade, 12, outer cylinder, 13, second rotating shaft, 14, second separation chamber, 15, support leg, 16, steam outlet, 17, vacuum pump, 18, conduit. Specific embodiments

[0022] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0023] Please refer to Figs. 1-2 The embodiment provides a kind of for freeze-dried raw milk concentrated microfiltration device, comprising: outer cylinder group, outer cylinder group is used to hold raw milk and discharge bacteria, impurities and milk fat;

[0024] First separation group, first separation group is rotationally arranged in outer cylinder group, and the bottom of first separation group is provided with power source, and motor is preferably used as power source in the embodiment, which is simple and easy to operate, and power source drives first separation group to rotate in counterclockwise direction, and first separation group carries out preliminary filtration to raw milk;

[0025] Second separation group, second separation group is rotationally arranged in first separation group, and the bottom of second separation group is provided with power source, and motor is preferably used as power source in the embodiment, which is simple and easy to operate, and power source drives second separation group to rotate in clockwise direction, and second separation group carries out secondary filtration to raw milk.

[0026] Outer cylinder group includes outer cylinder 12 and material port group, and material port group includes feed inlet 1, first discharge port 2 and second discharge port 3, feed inlet 1 is fixedly arranged on the upper side wall of outer cylinder 12, and raw milk is added into outer cylinder 12 through feed inlet 1.

[0027] First discharge port 2 is fixedly arranged on the top edge portion of outer cylinder 12, and the cream formed after preliminary filtration of raw milk is discharged through first discharge port 2, and second discharge port 3 is arranged on the lower edge of the side wall of outer cylinder 12, and the impurities and bacteria bodies after preliminary filtration are discharged.

[0028] The first separation group comprises the third discharge port 4, a preliminary separation group and a first separation shaft, the first separation shaft comprises a first MF microfiltration ceramic membrane 7, a first rotating shaft 10 and a second separation chamber 14, and the preliminary separation group comprises a first separation chamber 6 and a blade 11.

[0029] The first rotating shaft 10 is arranged in the outer cylinder 12, and the outer wall of the first rotating shaft 10 and the inner wall of the outer cylinder 12 form the first separation chamber 6. The blade 11 is arranged in the outer circle of the first rotating shaft 10 in an inclined spiral downward manner and is in sliding connection with the inner wall of the outer cylinder 12. The blade 11 is inclined downward by 30°-45°, preferably 35° in the embodiment, which is beneficial to filtering raw cow milk. The blade 11 is provided with an MF microfiltration ceramic membrane with a pore diameter of 0.45 μm.

[0030] The second separation chamber 14 is located in the first rotating shaft 10, and the first MF microfiltration ceramic membrane 7 is fixedly arranged in the outer circle of the first rotating shaft 10. The first MF microfiltration ceramic membrane 7 has a pore diameter of 0.45 μm.

[0031] The second separation group comprises a fourth discharge port 5 and a second separation shaft, the second separation shaft comprises a second MF microfiltration ceramic membrane 8, a third separation chamber 9 and a second rotating shaft 13. The second rotating shaft 13 is arranged in the first rotating shaft 10 in a rotating manner. The second MF microfiltration ceramic membrane 8 is fixedly arranged in the outer circle of the second rotating shaft 13. The second MF microfiltration ceramic membrane 8 has a pore diameter of 0.3 μm. The third separation chamber 9 is located in the second rotating shaft 13. A vacuum pump 17 is fixedly arranged in the third separation chamber 9. The third separation chamber 9 is vacuumized. Raw cow milk is sucked into the third separation chamber 9 from the second separation chamber 14 through the second MF microfiltration ceramic membrane 8.

[0032] The third separation chamber 9 is provided with a steam outlet 16 at the top. A conduit 18 is fixedly arranged below the fourth discharge port 5. The conduit 18 guides skimmed milk in the third separation chamber 9 into the first separation chamber 6 for repeated sterilization and concentration until the total number of bacteria is less than a specified value and the moisture content of the skimmed milk is less than 70%.

[0033] The device is composed of a plurality of units. Adjacent units are connected and supported by the supporting legs 15.

[0034] The raw milk is added from the feed port 1 to the upper layer of the first separation chamber 6, and the motors under the first rotating shaft 10 and the second rotating shaft 13 are started, the motor under the first rotating shaft 10 drives the first rotating shaft 10 to rotate counterclockwise, the motor under the second rotating shaft 13 drives the second rotating shaft 13 to rotate clockwise, the first rotating shaft 10 drives the first MF microfiltration ceramic membrane 7 to rotate counterclockwise, the second rotating shaft 13 drives the second MF microfiltration ceramic membrane 8 to rotate clockwise, after the raw milk enters the upper layer of the first separation chamber 6, part of the particles with a diameter less than 0.45 μm pass through the gap of the first MF microfiltration ceramic membrane 7 and enter the second separation chamber 14, and the other part of the particles with a diameter less than 0.45 μm pass through the gap of the blade 11 and enter the lower part of the first separation chamber 6, then pass through the gap below the first MF microfiltration ceramic membrane 7 and enter the second separation chamber 14, the filtered cream, fungi and bacteria with a diameter greater than 0.45 μm are discharged from the first discharge port 2, and the impurities and bacteria are discharged from the second discharge port 3, the cream discharged from the first discharge port 2 is subjected to pasteurization alone at 72 DEG C for 15 s and then is used; after the particles of skimmed milk enter the second separation chamber 14, the vacuum pump in the third separation chamber 9 is started, the vacuum pump sucks the raw milk from outside to inside, the bacteria with a diameter of 0.3-0.45 μm are intercepted by the second MF microfiltration ceramic membrane 8, the skimmed milk flows down along the inner wall of the second MF microfiltration ceramic membrane 8 and is discharged from the fourth discharge port 5, and a small amount of bacteria in the second separation chamber 14 after filtration are discharged from the third discharge port 4, the water vapor is extracted from above the third separation chamber 9, the skimmed milk is concentrated, at the same time, the bacteria with a diameter of 0.3 μm-0.45 μm are filtered out, so that the total number of bacteria in the skimmed milk is reduced, the skimmed milk is discharged from the fourth discharge port 5, enters the conduit 18 and is introduced into the first separation chamber 6 of the next layer, and is subjected to repeated sterilization and concentration until the total number of bacteria is less than a specified value and the moisture content of the skimmed milk is less than 70%, then the skimmed milk is mixed with the cream discharged from the first discharge port 2 and subjected to pasteurization, and is homogenized and used, so that the raw milk can be effectively concentrated and microfiltered, and the quality of the raw milk is ensured.

[0035] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form, although the present application has been disclosed above with preferred embodiments, however, it is not intended to limit the present application, any person skilled in the art can make slight changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, but as long as it does not deviate from the technical scheme of the present application, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the technical scheme of the present application.

Claims

1. A concentrated microfiltration device for lyophilizing raw cow milk, characterized in that, The application relates to a milk filter. The outer cylinder group is used for containing raw milk and discharging bacteria, impurities and milk fat. The first separation group is arranged in the outer cylinder group and is driven by a power source arranged at the bottom of the first separation group to rotate in the counterclockwise direction, and the first separation group performs primary filtering on the raw milk. The second separation group is arranged in the first separation group and is driven by a power source arranged at the bottom of the second separation group to rotate in the clockwise direction, and the second separation group performs secondary filtering on the raw milk.

2. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 1, characterized in that, The outer cylinder group comprises an outer cylinder (12) and a material port group, the material port group comprises a feeding port (1), a first discharging port (2) and a second discharging port (3), the feeding port (1) is fixedly arranged above the side wall of the outer cylinder (12), and the raw milk is added into the outer cylinder (12) through the feeding port (1).

3. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 2, characterized in that, The first discharging port (2) is fixedly arranged at the top edge of the outer cylinder (12), the cream formed after the raw milk is primarily filtered is discharged through the first discharging port (2), and the second discharging port (3) is arranged at the lower edge of the side wall of the outer cylinder (12) and is used for discharging the impurities and bacteria after primary filtering.

4. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 2, wherein, The first separation group comprises a third discharging port (4), a primary separation group and a first separation shaft, the first separation shaft comprises a first MF microfiltration ceramic membrane (7), a first rotating shaft (10) and a second separation chamber (14), and the primary separation group comprises a first separation chamber (6) and a blade (11).

5. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 4, characterized in that, The first rotating shaft (10) is rotatably arranged in the outer cylinder (12), the outer wall of the first rotating shaft (10) and the inner wall of the outer cylinder (12) form the first separation chamber (6), the blade (11) is fixedly arranged on the outer ring of the first rotating shaft (10) in an inclined spiral downward mode and is slidably connected with the inner wall of the outer cylinder (12), and the blade (11) is inclined downward by 30-45 degrees.

6. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 4, wherein, The second separation chamber (14) is located in the first rotating shaft (10), and the first MF microfiltration ceramic membrane (7) is fixedly arranged on the outer ring of the first rotating shaft (10).

7. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 6, characterized in that, The second separation group comprises a fourth discharging port (5) and a second separation shaft, the second separation shaft comprises a second MF microfiltration ceramic membrane (8), a third separation chamber (9) and a second rotating shaft (13).

8. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 7, characterized in that, The second rotating shaft (13) is rotatably arranged in the first rotating shaft (10), the second MF microfiltration ceramic membrane (8) is fixedly arranged on the outer ring of the second rotating shaft (13), and the third separation chamber (9) is located in the second rotating shaft (13).

9. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 7, characterized in that, A vacuum pump (17) is fixedly arranged in the third separation chamber (9), and a steam outlet (16) is arranged at the top of the third separation chamber (9).

10. The concentrated microfiltration device for lyophilizing raw cow milk according to claim 7, characterized in that, A guide pipe (18) is fixedly arranged below the fourth discharging port (5), and the guide pipe (18) guides the skimmed milk in the third separation chamber (9) into the first separation chamber (6).

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