CN-122004291-A - Frozen yak milk reduction method and equipment

CN122004291ACN 122004291 ACN122004291 ACN 122004291ACN-122004291-A

Abstract

The invention discloses a frozen yak milk reduction method and device, wherein a stewing container with frozen yak milk is placed in a stewing box in the frozen yak milk reduction device, a corresponding processing mode is selected from a menu of a touch screen on the frozen yak milk reduction device, the processing stage is started, firstly, the frozen yak milk is thawed, namely, the temperature in the stewing box is controlled to be always kept at a first temperature, the frozen yak milk is uniformly warmed, the frozen yak milk is completely thawed after being continuously heated for a first preset time, secondly, the yak milk is sterilized, the temperature in the stewing box is controlled again, the temperature in the stewing container is always kept at a second temperature, the completely thawed yak milk is sterilized, and the yak milk is continuously heated for a second preset time. The equipment provided by the invention simulates the mild conditions of high-altitude thawing, and effectively solves the layering problem of low-altitude thawing of yak milk by controlling thawing and sterilizing environments through the equipment.

Inventors

BI JIANCHUN
BI KESHUN
BI WENGANG

Assignees

徐州颐辰堂厨卫电器有限公司

Dates

Publication Date: 20260512
Application Date: 20251231

Claims (10)

1. A method for restoring frozen yak milk is characterized in that: Placing a stewing container with frozen yak milk in a stewing box in frozen yak milk reduction equipment, selecting a corresponding processing mode from a menu of a touch screen on the frozen yak milk reduction equipment, and entering a processing stage at the moment; stage one of thawing frozen yak milk Controlling the temperature in the stewing and steaming box, so that the temperature in the stewing and steaming container is always kept at a first temperature, uniformly heating the frozen yak milk, and completely thawing the frozen yak milk after continuously heating for a first preset time; Sterilizing yak milk The temperature in the stewing box is controlled again, so that the temperature in the stewing container is always kept at the second temperature, the completely thawed yak milk is sterilized, and the yak milk is continuously heated for a second preset time.
2. The method for restoring frozen yak milk according to claim 1, wherein: Continuously inputting hot steam into the stewing and steaming box through a steam generator to heat the stewing and steaming box, and adjusting air inflow through a temperature control system to control the temperature in the stewing and steaming box; The stewing container is a closed container with a sealing cover and is used for isolating materials from contacting with hot steam in the box body; the micro-pressure valve is arranged on the stewing container and can be communicated with the cooking space in the stewing container and the environment in the stewing box, and the pressure in the stewing container is intermittently released, so that the micro-regulation effect on the pressure in the stewing container is achieved, and the yak milk in the stewing container is in a state of approximately constant temperature and pressure.
3. The method for restoring frozen yak milk according to claim 2, wherein the state of being in a nearly constant temperature and pressure in the stewing container is realized by the following steps: stage one, start-up and initial stage The steam generator operates to flow the generated hot steam into the stewing and steaming box through a pipeline, the temperature outside the stewing and steaming box is higher than the temperature inside the stewing and steaming box, the hot steam directly heats the stewing and steaming box, yak milk is not contacted with the hot steam, but is heated through the heat conduction interval of the stewing and steaming box, at the moment, the air in the stewing and steaming box is heated and expanded until the pressure in the stewing and steaming box is higher than the pressure in the stewing and steaming box, a micro-pressure valve on the stewing and steaming box is opened for pressure relief, and when the pressure in the stewing and steaming box is reduced to be balanced with the pressure in the stewing and steaming box, the micro-pressure valve on the stewing and steaming box is closed; stage two, negative pressure is formed Stopping the steam generator, reducing the temperature in the stewing box, cooling and shrinking the residual gas in the stewing container, and reducing the pressure in the stewing container to form negative pressure in the stewing container; stage three, temperature pressure coupling and balancing The steam generator operates again, the temperature in the stewing steam box is gradually increased, when the pressure in the stewing steam box is higher than the pressure in the stewing steam box, the micro-pressure valve on the stewing steam box is opened again to release pressure until the pressure in the stewing steam box is balanced, the micro-pressure valve is closed, and the pressure in the stewing steam box is kept; stopping the steam generator again, reducing the temperature in the stewing box, and forming negative pressure in the stewing container again; Through last pressure, temperature control in the stewing steam box, form periodic difference in temperature in stewing steam box and the stewing steam container, according to multistage temperature pressure coupling for stew the yak milk that is processed in the steaming container and be in approximately constant temperature and constant pressure's state, yak milk relies on self inside original moisture completely, realizes evenly being heated through heat conduction.
4. The method for restoring frozen yak milk according to claim 1, wherein: When the frozen yak milk is thawed, the temperature in the stewing container is always kept at 40 ℃, the first preset time is set to be 30 minutes to 1 hour, and when the yak milk is sterilized, the temperature in the stewing container is always kept at 60 ℃, and the second preset time is set to be 10 hours to 14 hours.
5. The method for restoring frozen yak milk according to claim 1, wherein: According to the capacity of the frozen yak milk in the stewing container, after the corresponding processing mode is selected by the touch screen, the temperature control system can control the air inflow and the air displacement of the stewing container according to the temperature, the pressure and the time data stored in advance, so that the temperature in the container reaches the temperature and the pressure required by processing the frozen yak milk, and the temperature and the pressure in the stewing container are controlled to heat the frozen yak milk at a low temperature through multistage temperature and pressure coupling.
6. A frozen yak milk reconstitution device for carrying out the frozen yak milk reconstitution method as claimed in any one of claims 1 to 5, comprising: a steam generator is arranged in the steam generation box and used for generating hot steam; The stewing box comprises a box door and a box body, wherein a stewing container containing frozen yak milk is arranged in the box body, an air inlet and an air outlet are arranged on the box body, an air outlet of the steam generator is communicated with the air inlet on the box body through a pipeline, and hot steam generated by the steam generator flows into the box body and is used for heating the stewing box; The electric box is internally provided with a temperature control system for controlling the temperature in the stewing and steaming box, and the electric box is provided with a touch screen which can display the temperature and the pressure in the stewing and steaming box in real time, and frozen yak milk with different capacities in the stewing and steaming container is reduced and sterilized by the touch screen for selecting corresponding time.
7. The frozen yak milk reducing apparatus of claim 6, wherein: The box body is provided with at least one air inlet I on the inner side wall of the opposite box door, an air outlet hole on the air inlet I faces the inner top wall of the box body, hot steam flowing out of the steam generator is sprayed upwards through the air outlet hole of the air inlet I, the sprayed air flow is blocked by the inner top wall of the box body to change the direction, and an air flow track I which disperses forwards and moves downwards is formed along the plane of the inner top wall of the box body; The box body is provided with at least one air inlet II on the inner bottom wall close to the box door, the air outlet hole on the air inlet II faces the inner side wall of the box body, hot steam flowing out of the steam generator is sprayed forwards through the air outlet hole of the air inlet II, the sprayed air flow is blocked by the inner side wall of the box door to change direction, and an air flow track II which disperses upwards and moves backwards is formed along the plane of the inner side wall of the box door; The steam forms stirring motive force in the box body according to the airflow track I and the airflow track II, so that the temperature difference of each part in the box body is eliminated, and the heated uniformity of the materials is ensured.
8. The frozen yak milk reducing apparatus of claim 6, wherein: The inner top wall and the inner bottom wall in the box body are inclined planes with high front and low back, a groove is arranged at the joint of the inner side wall and the inner bottom wall of the box body opposite to the box door, and condensed water particles of saturated steam in the stewing box flow to the groove for collection; The steam generating tank is characterized in that a water outlet is formed in the tank body, a condensed water storage tank is arranged in the steam generating tank, the water outlet is communicated with the condensed water storage tank through a pipeline, an electromagnetic valve is installed in the pipeline, and the condensed water in the groove is discharged into the condensed water storage tank for recovery by controlling the electromagnetic valve to be opened through a temperature control system.
9. A frozen yak milk reconstitution device as recited in claim 6, wherein the steam generator comprises: The shell is provided with a water inlet and a steam outlet, the water pump is communicated with the water inlet through a pipeline, and the steam outlet is communicated with the air inlet of the box body through a pipeline and an electromagnetic valve; An electric heating element arranged in the shell, wherein the operation and stop of the electric heating element are controlled by a temperature control system; The water level detection device is arranged at the side part of the shell, is used for detecting the water level in the shell and can control the water pump to supplement water; the safety valve is arranged at the top of the shell, and the safety valve is used for exhausting and releasing pressure after the pressure in the shell reaches the preset pressure of the safety valve; and the pressure relay is arranged on the shell and is electrically connected with the electric heating element, and when the pressure relay detects that the pressure in the shell reaches the preset pressure of the pressure relay, the pressure relay cuts off the power supply of the electric heating element.
10. The frozen yak milk reducing apparatus of claim 6, wherein: The temperature control system comprises a PLC, a temperature sensor and a solid-state relay, wherein the temperature sensor is arranged in a box body, a normally open contact of the solid-state relay is electrically connected with a steam generator, the PLC is electrically connected with the temperature sensor and a coil of the solid-state relay, the temperature sensor detects the temperature in the box body in real time and transmits detected temperature data to the PLC, the PLC processes the received temperature data, and then the temperature in the box body is controlled by controlling the opening and closing of the steam generator.

Description

Frozen yak milk reduction method and equipment Technical Field The invention relates to a method and equipment for restoring frozen yak milk, and belongs to the technical field of frozen milk restoration. Background Yaks are the characteristic industry in Tibetan areas, but the characteristic of yaks cannot be intensively raised (one end of the yaks is 25-75 mu), and the milk yield is rare (one end of the yaks produce 3kg of milk), so the development of the yak milk industry is restricted (the milk powder can be prepared only by 10kg of milk). Due to geographical reasons and the characteristic of free-range yak, if the fresh milk cannot be cooled rapidly after being extruded, the milk is acidified and deteriorated, so that the fresh yak milk can be drunk only at the herd's home, but the traditional Tibetan people have the habit of freezing the fresh milk into ice cubes in winter, and the fresh milk is frozen and drunk when needed. The phenomenon that floc is formed by layering of the frozen yak milk at a low altitude can occur, but the situation that the frozen yak milk is not layered by restoring in a high altitude storage area is avoided. Based on the above, the invention designs a device and a process for restoring frozen milk. Disclosure of Invention According to the defects of the prior art, the invention provides a frozen yak milk reduction method and equipment, which utilize a low-temperature steam indirect heating process, precisely control the temperature and pressure in a stewing container by using a micro-pressure regulating technology, process the frozen yak milk, not only retain the nutritional value of the yak milk, but also expand the market application (such as milk powder production). The invention is realized according to the following technical scheme: In a first aspect, the invention provides a method for restoring frozen yak milk: Placing a stewing container with frozen yak milk in a stewing box in frozen yak milk reduction equipment, selecting a corresponding processing mode from a menu of a touch screen on the frozen yak milk reduction equipment, and entering a processing stage at the moment; stage one of thawing frozen yak milk Controlling the temperature in the stewing and steaming box, so that the temperature in the stewing and steaming container is always kept at a first temperature, uniformly heating the frozen yak milk, and completely thawing the frozen yak milk after continuously heating for a first preset time; Sterilizing yak milk The temperature in the stewing box is controlled again, so that the temperature in the stewing container is always kept at the second temperature, the completely thawed yak milk is sterilized, and the yak milk is continuously heated for a second preset time. In some embodiments, the steam generator is used for continuously inputting hot steam into the stewing steam box to heat the stewing steam box, the temperature control system is used for adjusting the air inflow to control the temperature in the stewing steam box, the stewing steam box is a closed container with a sealing cover and used for isolating materials from contacting with the hot steam in the box body, the stewing steam box is provided with a micro-pressure valve which can be communicated with a cooking space in the stewing steam box and the environment in the stewing steam box and intermittently discharges the pressure in the stewing steam box, so that the pressure in the stewing steam box is micro-regulated, and yak milk in the stewing steam box is in a state of approximately constant temperature and pressure. In some embodiments, achieving a state of approximately constant temperature and pressure within the stewing container is divided into the following stages: stage one, start-up and initial stage The steam generator operates to flow the generated hot steam into the stewing and steaming box through a pipeline, the temperature outside the stewing and steaming box is higher than the temperature inside the stewing and steaming box, the hot steam directly heats the stewing and steaming box, yak milk is not contacted with the hot steam, but is heated through the heat conduction interval of the stewing and steaming box, at the moment, the air in the stewing and steaming box is heated and expanded until the pressure in the stewing and steaming box is higher than the pressure in the stewing and steaming box, a micro-pressure valve on the stewing and steaming box is opened for pressure relief, and when the pressure in the stewing and steaming box is reduced to be balanced with the pressure in the stewing and steaming box, the micro-pressure valve on the stewing and steaming box is closed; stage two, negative pressure is formed Stopping the steam generator, reducing the temperature in the stewing box, cooling and shrinking the residual gas in the stewing container, and reducing the pressure in the stewing container to form negative pressure in the stewing container; stage three, temperature