CN211558662U

CN211558662U - Sour milk production facility

Info

Publication number: CN211558662U
Application number: CN202020025777.4U
Authority: CN
Inventors: 杨旭亮
Original assignee: Inner Mongolia Xibei Catering Group Co ltd
Current assignee: Inner Mongolia Xibei Catering Group Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-09-25
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a acidophilus milk production facility relates to dairy products production facility technical field. The yogurt production equipment comprises a stirring tank, a fermentation tank, a first switch valve and a vacuum pump. The stirring tank is provided with a stirring tank feeding port and a stirring tank discharging port. The fermentation tank is provided with a fermentation tank feed inlet, a fermentation tank gas outlet and a fermentation tank discharge outlet, and the fermentation tank feed inlet is communicated with the stirring tank discharge outlet. The first switch valve is arranged between the feeding hole of the fermentation tank and the discharging hole of the stirring tank. The vacuum pump is communicated with the gas outlet of the fermentation tank. And closing the first switch valve, and vacuumizing the fermentation tank through a vacuum pump to form a raw material transfer pressure difference between the stirring tank and the fermentation tank. After the vacuum pumping is finished, the first switch valve is opened, and raw milk and other raw materials can be thoroughly transferred from the stirring tank to the fermentation tank through the pressure difference. And because the transfer environment is relatively closed, the pollution to the raw materials can be greatly reduced.

Description

Sour milk production facility

Technical Field

The utility model relates to a dairy products production facility technical field especially relates to a acidophilus milk production facility.

Background

Most of the yoghurt consumed by people at present is produced and processed by a milk product factory. In the production of these yoghurts, it is necessary to stir raw materials such as raw milk in a stirring tank and transfer the stirred raw materials to a fermentation tank.

At present, when the raw materials are transferred, a material pump is directly used for extracting the raw materials from a stirring tank and sending the raw materials to a fermentation tank. However, there are two disadvantages with this approach: firstly, part of raw materials can remain in a material pump, so that the raw materials are not completely transferred; and secondly, during extraction, the fermentation tank needs to be communicated with the outside, so that raw material pollution is easily caused.

Based on this, there is a need for a yogurt production apparatus to solve the above mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a acidophilus milk production facility can thoroughly shift raw materials such as former milk to the fermentation cylinder from the agitator tank in, and can reduce the pollution that the raw materials received in the transfer process.

To achieve the purpose, the utility model adopts the following technical proposal:

yogurt production apparatus, comprising:

the stirring tank is provided with a stirring tank feeding hole and a stirring tank discharging hole;

the fermentation tank is provided with a fermentation tank feeding hole, a fermentation tank gas outlet and a fermentation tank discharging hole, and the fermentation tank feeding hole is communicated with the stirring tank discharging hole;

the first switch valve is arranged between the feed inlet of the fermentation tank and the discharge outlet of the stirring tank;

and the vacuum pump is communicated with the fermentation tank air outlet and is used for vacuumizing the fermentation tank when the first switch valve is in a closed state so as to generate a raw material transfer pressure difference between the stirring tank and the fermentation tank.

Optionally, the top of agitator tank is provided with first breather valve, the top of fermentation cylinder is provided with the second breather valve.

Optionally, the feed inlet of the stirring tank comprises a main material feed inlet and an auxiliary material feed inlet.

Optionally, a first stirring device is arranged in the stirring tank.

Optionally, a liquid level detection mechanism is arranged in the fermentation tank.

Optionally, a stirring tank interlayer shell is arranged in the stirring tank, and the stirring tank interlayer shell and the kettle body of the stirring tank are arranged at intervals to form a first cavity;

a fermentation tank interlayer shell is arranged in the fermentation tank, and the fermentation tank interlayer shell and the kettle body of the fermentation tank are arranged at intervals to form a second cavity;

the first cavity and the second cavity are each configured to be capable of accommodating a heating medium or a cooling medium.

Optionally, the yogurt production apparatus further comprises a first water supply mechanism, and a water outlet of the first water supply mechanism is communicated with the first cavity and the second cavity and is used for providing water with a first preset temperature to heat the stirring tank and the fermentation tank.

Optionally, the yogurt production apparatus further comprises a second water supply mechanism, and a water outlet of the second water supply mechanism is communicated with the second cavity and used for providing water with a second preset temperature to cool the fermentation tank.

Optionally, the interlayer shell of the stirring tank and the outer shell of the stirring tank are arranged at intervals to form a stirring tank heat-preserving cavity, and a heat-preserving medium is arranged in the stirring tank heat-preserving cavity; and/or

The fermentation tank interlayer shell and the outer shell of the fermentation tank are arranged at intervals to form a fermentation tank heat preservation cavity, and heat preservation media are arranged in the fermentation tank heat preservation cavity.

Optionally, the yogurt production apparatus further comprises a third water supply mechanism, and a water outlet of the third water supply mechanism is communicated with the stirring tank and the fermentation tank, and is used for providing cleaning water to clean the stirring tank and the fermentation tank.

The utility model has the advantages that:

the utility model provides a sour milk production facility. Through setting up vacuum pump and fermentation cylinder intercommunication, when closing first ooff valve, can be alone to the fermentation cylinder evacuation to form stable raw materials transfer pressure differential between agitator tank and fermentation cylinder. After the vacuumizing is finished, the first switch valve is opened, so that raw milk and other raw materials can be continuously transferred into the fermentation tank from the stirring tank through the pressure difference until all the raw materials in the stirring tank enter the fermentation tank, and the raw materials are completely transferred. Meanwhile, the transfer environment is relatively closed, so that the pollution to the raw materials can be greatly reduced.

Drawings

Fig. 1 is a schematic view of an overall structure of a yogurt production apparatus provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the connection between a stirring tank and a fermentation tank in the yogurt production apparatus provided by the embodiment of the present invention;

fig. 3 is a schematic view of the whole structure of the yogurt production apparatus provided with the workbench according to the embodiment of the present invention.

In the figure:

1. a stirring tank; 11. a main material feeding hole; 12. a discharge port of the stirring tank; 13. a first breather valve; 14. a first cavity; 15. a heat preservation cavity of the stirring tank; 16. a first stirring device; 17. cleaning a water pipe; 18. a first hot water pipe; 2. a fermentation tank; 21. a feed inlet of the fermentation tank; 22. an air outlet of the fermentation tank; 23. a second breather valve; 24. a second cavity; 25. a fermentation tank heat preservation cavity; 26. a second stirring device; 27. a discharge hole of the fermentation tank; 28. a second hot water pipe; 29. a cold water pipe;

3. a first on-off valve; 4. a vacuum pump; 5. a first water supply mechanism; 51. a warm water tank; 52. a warm water pump; 6. a second water supply mechanism; 61. a cold water tank; 62. a cold water pump; 7. a third water supply mechanism; 71. a first clean water tank; 72. a second clean water tank; 73. cleaning the water pump; 74. a second on-off valve; 8. an auxiliary material feeding pipe; 9. a third on-off valve; 10. a work table;

101. a first pipeline; 102. a second pipeline; 103. a third pipeline; 104. a fourth pipeline; 105. a liquid discharge line.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides yoghourt production equipment. As shown in fig. 1, the apparatus includes a stirring tank 1, a fermentation tank 2, a first switching valve 3, and a vacuum pump 4. The stirring tank 1 is provided with a stirring tank feeding hole and a stirring tank discharging hole 12. The fermentation tank 2 is provided with a fermentation tank feeding hole 21, a fermentation tank air outlet 22 and a fermentation tank discharging hole 27, and the fermentation tank feeding hole 21 is communicated with the stirring tank discharging hole 12. The first switch valve 3 is arranged between the feeding port 21 of the fermentation tank and the discharging port 12 of the stirring tank. The vacuum pump 4 is communicated with the outlet 22 of the fermentation tank.

At the beginning, the first switch valve 3 is closed, and the stirring tank 1 is not communicated with the fermentation tank 2. At this time, raw milk, supplementary materials, etc. may be fed into the agitation tank 1 through the agitation tank feed port 12 to be agitated. After the raw materials are uniformly mixed, the fermentation tank 2 is vacuumized by the vacuum pump 4 so as to generate a raw material transfer pressure difference between the stirring tank 1 and the fermentation tank 2. After the vacuum pumping is finished, the first switch valve 3 is opened, so that the raw material can be continuously transferred from the stirring tank 1 to the fermentation tank 2 through the pressure difference until the raw material in the stirring tank 1 completely enters the fermentation tank 2, and the raw material is completely transferred. And because no air enters between the stirring tank 1 and the fermentation tank 2 in the transfer process, the environment is relatively closed, so that the pollution to the raw materials can be greatly reduced. After the raw milk is fermented into the yogurt in the fermentation tank 2, the yogurt can be transferred out through the discharge port 27 of the fermentation tank for the customer to eat.

In this embodiment, as shown in fig. 1, the vacuum pump 4 is connected to the outlet 22 of the fermentation tank via a first line 101 and a third line 103 to form a vacuum-pumping line.

Optionally, the stirring tank 1 and the fermentation tank 2 are both composed of a cylinder body and a sealing head. In this embodiment, the cylinder is a seamless stainless steel tube, and the end enclosure is an oval end enclosure formed by stamping a stainless steel plate. Further, the upper end enclosures in the stirring tank 1 and the fermentation tank 2 are both in threaded connection with the cylinder body, so that the stirring tank and the fermentation tank are convenient to disassemble and clean. The sealing gaskets in the two tanks for sealing are made of food grade rubber. In addition, it should be noted that, in the installation process of the stirring tank 1 and the fermentation tank 2, the verticality and the parallelism of the two tanks need to be ensured to meet the precision requirement.

Optionally, in order to ensure the throughput of the yogurt production facility, as shown in fig. 1, two stirring tanks 1 and four fermentation tanks 2 are provided, and each stirring tank 1 is connected with two fermentation tanks 2. Of course, in other embodiments, the number of the stirring tanks 1 and the fermentation tanks 2 can be adjusted according to actual needs. Further, a first switch valve 3 is arranged at one end of each of the feeding port 21 and the discharging port 12 of the stirring tank, so as to realize the independent control of the opening and closing of the stirring tank 1 or the fermentation tank 2. Specifically, the first switching valve 3 is a multi-way switching valve capable of controlling opening and closing of each of the pipes connected thereto. In this embodiment, the settings of the other on-off valves are the same, and are not described in detail later.

Alternatively, as shown in fig. 1, a first breather valve 13 is provided at the top of the agitation tank 1, and a second breather valve 23 is provided at the top of the fermentation tank 2. In this embodiment, the first breather valve 13 is kept normally open. The pressure in the stirring tank 1 can be maintained at atmospheric pressure by always allowing the stirring tank 1 to communicate with the atmosphere by the first breather valve 13. During the process of vacuumizing the fermentation tank 2 and transferring the raw materials, the second breather valve 23 is kept closed to maintain the vacuum degree of the fermentation tank 2. After the transfer of the raw material is completed, the second breather valve 23 can be opened to communicate the fermentation tank 2 with the atmosphere.

Optionally, the agitator tank feed ports include a main feed port 11 and an auxiliary feed port. In this embodiment, as shown in fig. 1, in order to reduce the pipeline setting, the discharge port 12 of the stirring tank is used as an auxiliary material feed port, so that the stirring tank is communicated with the auxiliary material feed pipe 8 to form an auxiliary material feed pipeline. Auxiliary materials such as zymophyte and the like can enter the stirring tank 1 through the auxiliary material feeding pipeline. Raw milk enters the stirring tank 1 through the main material inlet 11.

Optionally, as shown in fig. 2, a first stirring device 16 is disposed in the stirring tank 1 to stir raw materials such as raw milk in the stirring tank 1 to mix the raw materials uniformly. Specifically, the first stirring device 16 includes a driving mechanism, a stirring shaft, and a stirring paddle connected in sequence. Wherein, the first end of (mixing) shaft stretches out the top setting of agitator tank 1. The driving mechanism is arranged at the first end of the stirring shaft and is in transmission connection with the stirring shaft. The second end of the stirring shaft is arranged inside the stirring tank 1, and the stirring paddle is arranged at the second end. Under the action of the driving mechanism, the stirring shaft and the stirring paddle can be driven to rotate, so that raw milk, auxiliary materials and other raw materials are stirred. In this embodiment, the driving mechanism is a rotating electrical machine with a rated voltage of 220V, a rated power of 370W, and a rotation speed of 30-40 rpm. The stirring shaft and the stirring paddle are both made of 316 stainless steel, and stirring blades which are convenient to clean are selected as the stirring paddles.

Further, a second stirring device 26 is provided in the fermentation tank 2 to uniformly stir the materials in the fermentation tank 2. The second stirring device 26 is arranged in the same way as the first stirring device 16 and will not be described in further detail here.

Optionally, a liquid level detection mechanism is provided in the fermentation tank 2 to monitor the amount of material transferred in real time. Taking the example of 50L of raw material in the stirring tank 1 at the beginning, when the liquid level detection mechanism detects that the amount of raw material entering the fermentation tank 2 reaches 50L after the raw material transfer is started, the first switch valve 3 is closed, and the raw material transfer process is ended. Of course, it is also possible to monitor by means of the liquid level detection mechanism that the amount of raw material entering the fermentation tank 2 is close to 50L, but that the liquid level in the fermentation tank 2 does not rise any more. This indicates that the pressure difference between the stirred tank 1 and the fermentor 2 is not sufficient to transfer the remaining material from the stirred tank 1 to the fermentor 2. At this time, the first on-off valve 3 needs to be closed, and the fermentation tank 2 is vacuumized again by the vacuum pump 4 to further reduce the vacuum degree of the fermentation tank 2, so that the power of raw material transfer is increased, and the residual raw material enters the fermentation tank 2. In particular, the liquid level detection device may be a liquid level meter or a liquid level sensor.

Optionally, a stirring tank interlayer shell is arranged in the stirring tank 1, the stirring tank interlayer shell and the kettle body of the stirring tank 1 are arranged at an interval to form a first cavity 14, a fermentation tank interlayer shell is arranged in the fermentation tank 2, and the fermentation tank interlayer shell and the kettle body of the fermentation tank 2 are arranged at an interval to form a second cavity 24. Both the first cavity 14 and the second cavity 24 can be used for accommodating a heating medium or a cooling medium. According to the arrangement, the materials in the kettle bodies of the stirring tank 1 or the fermentation tank 2 can be heated or cooled very conveniently. Further, temperature detection mechanisms are arranged in the stirring tank 1 and the fermentation tank 2 respectively to monitor the temperature of the materials in the tanks. In this embodiment, the temperature detection mechanism is a temperature sensing probe. Since the structure and installation thereof belong to the prior art, they are not described in detail herein.

Optionally, as shown in fig. 1, the yogurt production apparatus further comprises a first water supply mechanism 5, the water outlet of which is communicated with the first cavity 14 and the second cavity 24 for supplying water with a first preset temperature to heat the stirring tank 1 and the fermentation tank 2. In this embodiment, the first water supply mechanism 5 includes a warm water tank 51 and a warm water pump 52, and the warm water tank 51 supplies water of 36 ℃. The water in the warm water tank 51 can be conveniently and quickly sent to the first cavity 14 or the second cavity 24 through the warm water pump 52 so as to heat the materials in the stirring tank 1 or the fermentation tank 2.

Optionally, as shown in fig. 1, the yogurt production apparatus further comprises a second water supply mechanism 6, and a water outlet of the second water supply mechanism 6 is communicated with the second cavity 24 for providing water with a second preset temperature to cool the fermentation tank 2. In this embodiment, the second water supply mechanism 6 includes a cold water tank 61 and a cold water pump 62, and the temperature of water supplied from the cold water tank 61 is 0 ℃. The water in the cold water tank 61 can be conveniently and quickly sent to the second cavity 24 through the cold water pump 62 so as to cool the materials in the fermentation tank 2.

In the present embodiment, as shown in fig. 1, a first hot water pipe 18 connected to the first water supply mechanism 5 is provided at the bottom of the agitation tank 1. A second hot water pipe 28 connected to the first water supply means 5 and a cold water pipe 29 connected to the second water supply means 6 are provided at the bottom of the fermentation tank 2. Meanwhile, on-off valves are provided on the first hot water pipe 18, the second hot water pipe 28 and the cold water pipe 29 to turn on or off the water supply lines.

In the yogurt production process, the first water supply mechanism 5 and the second water supply mechanism 6 are used as follows: the first water supply mechanism 5 is communicated with the first cavity 14, and the stirring tank 1 is heated, so that raw milk and other raw materials in the stirring tank 1 reach the preset temperature (36 ℃); after the raw materials are transferred into the fermentation tank 2, communicating the first water supply mechanism 5 with the second cavity 24, and fermenting the raw milk in the fermentation tank 2 for 9 hours at constant temperature to generate the yoghourt; after 9 hours, the second water supply structure 6 and the second cavity 24 are communicated, and the fermentation tank 2 is cooled to ensure that the yoghourt is cooled to a proper temperature for storage.

Further, can make the shell body interval setting of agitator tank intermediate layer casing and agitator tank 1 form agitator tank heat preservation chamber 15, set up the heat preservation medium in agitator tank heat preservation chamber 15, also can make the shell body interval setting of fermentation cylinder intermediate layer casing and fermentation cylinder 2 form fermentation cylinder heat preservation chamber 25, set up the heat preservation medium in fermentation cylinder heat preservation chamber 25. In this embodiment, in order to ensure a good heat preservation effect and reduce the overall energy consumption of the equipment as much as possible, the stirring tank heat preservation cavity 15 and the fermentation tank heat preservation cavity 25 are provided, and heat preservation foaming layers are provided in both the two heat preservation cavities.

Specifically, regarding the size of the agitation tank 1, the overall outer diameter thereof was 377mm, the total height was 1160mm, the outer diameter of the interlayer shell of the agitation tank was 325mm, and the outer diameter of the kettle body was 306 mm. The thicknesses of the outer shell, the interlayer shell of the stirring tank and the kettle body are respectively 2.5mm, 1.5mm and 3 mm. The inner surface of the kettle body is polished by adopting a mirror surface, and the surface of the outer shell body is treated by adopting a gold mirror surface. All three shells are made of 316 stainless steel. The arrangement of the outer shell, the fermentation tank interlayer shell and the kettle body in the fermentation tank 2 is the same as that of the stirring tank 1, and the description is omitted.

Optionally, as shown in fig. 1, the yogurt production apparatus further comprises a third water supply mechanism 7, and a water outlet of the third water supply mechanism 7 is communicated with the stirring tank 1 and the fermentation tank 2 for supplying cleaning water to wash the stirring tank 1 and the fermentation tank 2. In this embodiment, all be provided with at agitator tank 1 and fermentation cylinder 2's clean water import department and spray the mechanism to spray the washing to two jars, guarantee good clean effect. Specifically, the third water supply mechanism 7 includes a first cleaning water tank 71, a second cleaning water tank 72, and a cleaning water pump 73 connected to the two cleaning water tanks. The first clean water tank 71 is used for providing alkaline water with the water temperature of 65 ℃, and the second clean water tank 72 is used for providing clean water with the water temperature of 85 ℃.

In terms of piping connection, as shown in fig. 1, the cleaning water pump 73 communicates with the cleaning water pipe 17 in the agitation tank 1 and the fermentation tank air outlet 12 in the fermentation tank 2 through the second line 102 and the third line 103 to form a cleaning line. It can be seen that in this embodiment, the vacuum pumping pipeline and the cleaning pipeline share the third pipeline 103, which effectively reduces the number of pipelines to be arranged, and makes the whole structure of the yogurt production apparatus more compact. Meanwhile, in order to switch the vacuum pumping line and the cleaning line, a third on/off valve 9 is provided at a junction of the first line 101 and the second line 102. It should be noted that when the fermentation tank 2 is vacuumized by using the vacuum-pumping line, the switch valve on the clean water pipe 17 is closed to avoid vacuuming the stirring tank 1.

Further, a fourth line 104 and a drain line 105 are also provided in the yogurt production apparatus. Wherein the fourth pipeline 104 is communicated with the second clean water tank 72 for realizing the circulation of the clean water at 85 ℃. The drain line 105 is used to drain the liquid in the pipeline to the outside.

In this embodiment, as shown in fig. 1, the cleaning water pump 73 is also communicated with the warm water tank 51. A second switching valve 74 is further provided in the third water supply mechanism 7 to control the connection and disconnection of the clean water pump 73 with the warm water tank 51, the first clean water tank 71, and the second clean water tank 72 so as to switch the clean water.

Specifically, the cleaning process for the agitation tank 1 and the fermentation tank 2 is as follows:

1) after the production of the yoghourt is finished, the residual materials in the stirring tank 1 and the fermentation tank 2 are discharged through a liquid discharge pipeline 105;

2) preliminarily cleaning the stirring tank 1 and the fermentation tank 2 by using warm water with the temperature of 36 ℃ in the warm water tank 51;

3) carrying out secondary washing on the stirring tank 1 and the fermentation tank 2 by using 65 ℃ alkaline water in a first cleaning water tank 71 to neutralize residues;

4) and finally cleaning the stirring tank 1 and the fermentation tank 2 by using the clean water with the temperature of 85 ℃ in the second cleaning water tank 72, so that a good cleaning effect is ensured.

Optionally, all valves in the yogurt production equipment are electric valves or pneumatic valves to be connected with a controller to realize automatic control. The controller can be a centralized or distributed controller, for example, the controller can be a single chip microcomputer or can be formed by a plurality of distributed single chip microcomputers, and a control program can be operated in the single chip microcomputers so as to control the opening and closing of each valve. In this embodiment, a PLC control system is provided in the yogurt production facility as a controller. The automatic control of the processes of raw material transfer, fermentation, storage, cleaning and the like can be realized through the PLC control system, so that the production process is more compact, the production time of the yoghourt is greatly saved, the survival rate of probiotics in the yoghourt is improved, and the good taste of the yoghourt is ensured.

The PLC control system is connected with a display, and the display has a visual operation interface, so that the PLC control system is visual and understandable. Through the operation interface, the yogurt production equipment displayed in a three-dimensional picture form can be seen, and equipment information such as opening and closing of a valve, operation of a pump and the like can also be seen. Specifically, the display settings of the operation interface are as follows:

1) starting up to display information such as equipment name, website, address, telephone and the like;

2) the color of the tank body is silver, the color of the pipeline is golden, the material flow and liquid level floating in the stirring tank 1 and the fermentation tank 2 are synchronously displayed in the yogurt production process, and the water flow state is displayed when the material flows in the pipeline;

3) the colors of hot water, cold water, alkaline water and clear water flowing in the pipeline are respectively red, blue, yellow and light blue, and the flowing of the water can be dynamically displayed;

4) when the hot water is heated, the edge of the tank body is displayed as red flow to show the flow state of the hot water;

5) the valve is opened to be green, and the valve is closed to be red;

6) the stirring device and the pump display rotating dynamic state when running and become static state when stopping;

7) the cleaning equipment is a spraying ball, after the yogurt is produced, the atomizing state is displayed, and cleaning water is sprayed into the tank body through the cleaning equipment to carry out all-dimensional cleaning on the tank body;

8) when the control system is dormant, displaying a preset main page, and prompting the running states of a valve, a pump, a stirrer, a pipeline and the like;

9) and when the equipment fails, displaying the current failure information.

Besides the above arrangement, the PLC control system can record the working times of valves, pumps and the like, and preset the working alarm times. And the PLC control system can also switch the operation mode of the equipment into manual (i.e. inching) operation or automatic (i.e. one-key starting) operation.

Furthermore, a plurality of data interfaces are reserved in the PLC control system and can be used for data transmission with other equipment. Alternatively, the data interface may be a USB interface. Since it belongs to the prior art, it is not described herein in detail.

In this embodiment, in consideration of the safety of the PLC control system, certain settings are also made on the permissions of different users. Specifically, in the PLC control system, users are divided into an administrator and an operator. The administrator has the highest authority and can set the name and the login password of the login person. The operator can only simply operate through the operation interface and monitor the operation of the yogurt production equipment.

Optionally, as shown in fig. 3, a workbench 10 is further provided in the yogurt production apparatus. The work table 10 is a box structure having a large installation space therein. All water supply mechanisms and most pipelines are arranged inside the workbench 10, so that the equipment is more attractive. Further, a marble worktable surface is arranged at the top of the worktable 10, so that the appearance is attractive, the atmosphere is good, and the cleaning is convenient. In this embodiment, the outlet 27 of the fermentation tank is disposed above the working table for the user to access the yogurt. A low noise compressor is also provided in the table 10, which communicates with the exhaust gas duct for discharging heat from the inside of the table 10. Optionally, the heat exhaust gas duct is a square tube with a cross-sectional dimension of 100mm × 100 mm.

In terms of overall size, the yogurt production equipment is 3.7m long and 0.75m wide, compact in structure and small in occupied space. In terms of integral manufacture, the outer surface of the yoghourt production equipment is subjected to fine polishing treatment, the appearance is attractive, the welding parts are subjected to grinding and polishing treatment, the welding line meets the national standard, and the quality is reliable.

In conclusion, the yoghourt production equipment can completely transfer raw milk and other raw materials from the stirring tank 1 to the fermentation tank 2, and can greatly reduce the pollution to the raw materials in the transfer process. In addition, can also realize the automated control to processes such as raw materials transfer, fermentation and washing through this acidophilus milk production facility, production efficiency is high, can greatly practice thrift the production time of acidophilus milk, promotes the survival rate of probiotic in the acidophilus milk, guarantees the good taste of acidophilus milk.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. Yogurt production equipment is characterized by comprising:

the stirring device comprises a stirring tank (1), wherein a stirring tank feeding hole and a stirring tank discharging hole (12) are formed in the stirring tank (1);

the fermentation tank (2) is provided with a fermentation tank inlet (21), a fermentation tank outlet (22) and a fermentation tank outlet (27), and the fermentation tank inlet (21) is communicated with the stirring tank outlet (12);

the first switch valve (3) is arranged between the feeding hole (21) of the fermentation tank and the discharging hole (12) of the stirring tank;

and the vacuum pump (4) is communicated with the fermentation tank air outlet (22) and is used for vacuumizing the fermentation tank (2) when the first switch valve (3) is in a closed state so as to generate a raw material transfer pressure difference between the stirring tank (1) and the fermentation tank (2).

2. Yoghurt production plant as claimed in claim 1, characterized in that the top of the stirred tank (1) is provided with a first breather valve (13) and the top of the fermenter (2) is provided with a second breather valve (23).

3. Yogurt production apparatus as claimed in claim 1, wherein the agitator tank feed inlet comprises a main feed inlet (11) and an auxiliary feed inlet.

4. Yoghurt production plant as claimed in claim 1, characterized in that a first stirring device (16) is arranged in the stirring tank (1).

5. Yoghurt production plant as claimed in claim 1, characterized in that a liquid level detection mechanism is arranged in the fermenter (2).

6. Yogurt production apparatus as claimed in claim 1, characterized in that a stirred tank sandwich housing is arranged in the stirred tank (1), and the stirred tank sandwich housing and the tank body of the stirred tank (1) are arranged at an interval to form a first cavity (14);

a fermentation tank interlayer shell is arranged in the fermentation tank (2), and the fermentation tank interlayer shell and the kettle body of the fermentation tank (2) are arranged at intervals to form a second cavity (24);

the first cavity (14) and the second cavity (24) are each configured to be able to accommodate a heating medium or a cooling medium.

7. Yoghurt production plant according to claim 6, characterized in that it further comprises a first water supply means (5), the water outlet of said first water supply means (5) being in communication with said first cavity (14) and said second cavity (24) for supplying water having a first preset temperature for heating said agitator tank (1) and said fermenter (2).

8. Yoghurt production plant according to claim 6, characterized in that it further comprises a second water supply means (6), the water outlet of said second water supply means (6) being in communication with said second cavity (24) for supplying water having a second preset temperature for cooling said fermenter (2).

9. Yogurt production apparatus according to claim 6, wherein the sandwiched shell of the agitator tank and the outer shell of the agitator tank (1) are arranged at an interval to form an agitator tank heat preservation chamber (15), and a heat preservation medium is arranged in the agitator tank heat preservation chamber (15); and/or

The fermentation tank interlayer shell and the outer shell of the fermentation tank (2) are arranged at intervals to form a fermentation tank heat preservation cavity (25), and heat preservation media are arranged in the fermentation tank heat preservation cavity (25).

10. Yogurt production apparatus as claimed in claim 1, further comprising a third water supply mechanism (7), the outlet of the third water supply mechanism (7) being in communication with the agitator tank (1) and the fermentation tank (2) for providing cleaning water for washing the agitator tank (1) and the fermentation tank (2).