An equipment body of an ultrasonic rapid freezing equipment is provided with a placement cavity, and the placement cavity is provided with a first electric telescopic rod. The bottom end of the first electric telescopic rod is provided with a receiving plate connected to a movable plate, and the movable plate is driven by a motor to rotate. The equipment body is provided with a first conveyor belt, and the inner end of the first conveyor belt is equipped with a second conveyor belt. The second conveyor belt is located on a mounting frame, and the bottom of the mounting frame is connected to a second electric telescopic rod. The bottom end of the second electric telescopic rod is connected to a moving block, the roller at the bottom of the moving block is located in the track on the top surface of the supporting block.

A high-frequency heating apparatus according to an embodiment of the present disclosure includes a heating chamber, an electrode, a high-frequency power supply, at least one matching element, and a controller. The heating chamber accommodates a heating target. The high-frequency power supply applies a high-frequency voltage to the electrode. The impedance matcher includes at least one matching element having a matching constant that is variable. The controller stops the high-frequency power supply to complete heating based on a temporal change of the matching constant of the at least one matching element. In this embodiment, a heating target can be heated efficiently.

Provided are a heating device and a refrigerator. The heating device includes: a cylinder body, in which a heating cavity is defined and configured to place an object to be processed, provided with a pick-and-place opening located on a front side of the cylinder body; a door body, configured to open and close the pick-and-place opening of the cylinder body; an electromagnetic heating device, configured to generate electromagnetic waves into the heating cavity to heat the object to be processed; and magnetic elements, disposed on the door body or the cylinder body and configured to enable the door body and the cylinder body to attract each other, so that when the door body is in a closed state in which the door body seals the pick-and-place opening, the door body and the cylinder body are in close electrical contact, thereby forming a continuously conductive shielding body. By disposing the magnetic elements, on the one hand, the size of a gap between the door body and the cylinder body is reduced, and the amount of electromagnetic leakage is reduced; and on the other hand, it facilitates the door body and the cylinder body forming a continuously conductive shielding body to prevent electromagnetic waves from being emitted through the gap that may exist between the door body and the cylinder body, thereby effectively shielding the electromagnetic radiation and eliminating the harm of the electromagnetic radiation to the human body.

Disclosed is a fast chilling method for improving beef tenderness, including the following steps: step 1, sample pretreatment: taking beef longissimus dorsi muscle after slaughter, removing surface fat and connective tissue, and vacuum packaging; step 2, rapid chilling: rapidly transferring the pre-treated sample completed in step 1 to a chilling equipment for chilling to a sample temperature of −3 degrees Celsius (° C.), where the chilling is completed within 5 hours (h) after slaughter; step 3, chilling and aging at super-chilled temperature: transferring the samples rapidly chilled in step 2 to a chilled warehouse, and continuing to chilling and aging until 24 h after slaughter; and step 4, chilling storage and aging: cutting the sample equally into 2.5 centimeters (cm) thickness 24 h after slaughter, and then completing a vacuum skin packaging and refrigerating for aging.

An energy optimization system for a load of perishable goods in temperature controlled storage, wherein a thermal profile of the load is developed, which is then used, in connection with temperature readings of the air and goods to simulate an expected temperature of the goods over an absolute or relative time duration at one or more set points. The simulation allows an optimal energy efficient set point to be determined, which may then be used to make the HVAC unit of the temperature controlled storage zone more energy efficient.

A continuous differential-pressure steam sterilization system for a powder, and belongs to the field of material sterilization includes: a superheated steam generation system, a steam pressure and flow rate control system, a quantitative feeding system, an instantaneous differential-pressure sterilization system, a dust explosion suppression system, a sterile cooling system, a primary gas-solid separation system, a secondary gas-solid separation system, a sterile storage system, a steam recovery and reheating system, and a condensate recovery system. The continuous differential-pressure steam sterilization system shortens the thermal contact time and mainly accumulates the heat on the surface of the powder, rather than in the center of the powder, which reduces the damage to the nutritional quality of the powder. Comprehensive treatment methods such as superheated steam, temperature compensation and non-sticky inner lining are adopted to reduce the problem of powder binding, agglomeration, and even blocking in the pipe of the system.

The present disclosure provides an ice maker comprising: an ice tray, an ice making compartment and a heating compartment, wherein the ice tray can be switched between the ice making compartment and the heating compartment to realize ice making and heating for ice unloading, and there is no need to arrange a heater on the ice tray. The present disclosure also discloses a refrigerator, comprising a door body on which the ice maker as described above is disposed, wherein an ice outlet of the ice maker communicates with a distributor on the door body, thus facilitating ice taking without opening the door body. The present disclosure also discloses a refrigerator, comprising a refrigerating compartment in which the ice maker as described above is disposed, wherein the ice making compartment of the ice maker communicates with a freezer compartment or a cold air outlet of an evaporator.

A heating apparatus, comprising a chamber body, a door body, a drawer, an electromagnetic wave generating system, and a slide rail assembly. The slide rail assembly comprises a fixed rail fixedly connected to the chamber body, and a slide portion capable of sliding along the fixed rail and fixedly connected to the drawer. The chamber body and the door body are each provided with an electromagnetic shielding feature. The slide portion is provided with at least one conductive connector. One end of each conductive connector is used to conductively connect to the electromagnetic shielding feature of the door body, and the other end is used to conductively connect to the fixed rail. Each conductive connector is fastened and conductively connected to the electromagnetic shielding feature of the door body by means of a fastener.

A frozen substance maker includes a heat pump, a cold plate, a mold base, a mold top, and an agitator. The cold plate is in thermal communication with the heat pump. The mold base is positioned on the cold plate. The mold base and the cold plate define a seed crystal chamber. The mold top is positioned on the mold base. The mold base and the mold top define a mold cavity in fluid communication with the seed crystal chamber. The mold top defines an overflow reservoir in fluid communication with the mold chamber. The agitator is located at least partially within the overflow reservoir.

A refrigerator includes an ice tray, a motor, an ejector including a rotary shaft and a protrusion pin, and a heater for selectively supplying heat to the ice tray. A control method of the refrigerator includes a first step of sensing whether the ejector is rotated to reach a first setup position; a second step of driving the heater and stopping driving of an ice making compartment fan if the first step is satisfied; a third step of determining whether the ejector is rotated to reach a second setup position; and a fourth step of stopping driving of the heater if the third step is satisfied, and wherein the ejector continues to be rotated while the second to fourth steps are implemented.