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CN-119634411-B - Method for treating residual food in canteen

CN119634411BCN 119634411 BCN119634411 BCN 119634411BCN-119634411-B

Abstract

The invention discloses a method for treating residual food in a canteen, which comprises the steps of carrying out high-temperature sterilization treatment on residual food in the canteen, wherein the residual food in the canteen is collected from the canteen and comprises leftovers and leftovers, stirring the residual food in the canteen while carrying out high-temperature sterilization treatment on the residual food in the canteen, detecting the heating temperature of the residual food in the canteen during the high-temperature sterilization treatment and stirring treatment on the residual food in the canteen, and regulating the heating temperature according to the detected heating temperature and the high-temperature sterilization treatment time until the residual food in the canteen is processed into sterilized and environment-friendly dry granular or fibrous powder substances.

Inventors

  • YU FUHUA

Assignees

  • 北京国资环境保护技术有限公司

Dates

Publication Date
20260508
Application Date
20230918

Claims (7)

  1. 1. A method of processing food remaining in a canteen, comprising: sterilizing the rest food of the canteen, including leftovers and leftovers, collected from the canteen at a high temperature; stirring the residual food in the canteen while carrying out high-temperature sterilization treatment on the residual food in the canteen; Detecting the heating temperature of the residual food in the canteen during the high-temperature sterilization treatment and the stirring treatment of the residual food in the canteen; according to the detected heating temperature and high-temperature sterilization treatment time, the heating temperature provided by the electric heating device is adjusted, the high-temperature sterilization temperature is adjusted to the drying treatment temperature, and the rest food of the canteen is dried until the rest food of the canteen is processed into sterilized dry granular or fibrous powder which is beneficial to environmental protection; Detecting the heating temperature comprises detecting the heating temperature at fixed time intervals during the high-temperature sterilization treatment and stirring treatment of the rest food in the canteen; The high-temperature sterilization treatment time comprises an initial heating period and a high-temperature sterilization period, wherein the initial heating period is when the heating temperature of the residual food in the canteen is quickly increased from low temperature to a first heating temperature, the obtained heating temperature increment is compared with a preset threshold value in the high-temperature sterilization period, the first heating temperature is kept or reduced to a second heating temperature according to a comparison result, the first heating temperature is the high-temperature sterilization temperature which achieves a sterilization effect, the first heating temperature is more than or equal to 100 ℃, and the second heating temperature is the drying temperature for drying the residual food in the canteen; Wherein the heating temperature is adjusted by changing heating energy of the electric heating device.
  2. 2. The canteen residual food processing method of claim 1, wherein maintaining the first heating temperature or reducing the heating temperature according to the comparison result includes: If the heating temperature increment is lower than a preset threshold value, the first heating temperature is maintained; and if the heating temperature increase is higher than or equal to a preset threshold value, reducing the heating temperature from the first heating temperature to a second heating temperature.
  3. 3. The method for processing food remaining in a canteen according to claim 2, wherein the electric heating device comprises a first electric heater group, a second electric heater group, and a processor; And the processor controls the power-on operation of the first electric heater group and the second electric heater group according to the comparison result of the detected heating temperature increment and the stored preset threshold value so that the heating temperature reaches the first heating temperature or the second heating temperature.
  4. 4. The method of claim 1, wherein the adjusting the heating temperature according to the detected heating temperature and the high temperature sterilization treatment time comprises: in the initial heating period of the high-temperature sterilization treatment time, the heating temperature of the rest food in the canteen is quickly reached to a first heating temperature from normal temperature; And in the high-temperature sterilization period of the high-temperature sterilization treatment time, comparing the heating temperature increment with a first preset threshold value, if the heating temperature increment is higher than the first threshold value, reducing the heating temperature from the first heating temperature to the second heating temperature, and otherwise, maintaining the first heating temperature.
  5. 5. The method for processing the residual food in a canteen according to claim 4, wherein the currently obtained heating temperature increment is compared with a second preset threshold value during the period when the heating temperature is reduced from the first heating temperature to the second heating temperature, and if the heating temperature is higher than the second threshold value, the heating temperature is reduced from the second heating temperature to a third heating temperature, and otherwise the second heating temperature is maintained; wherein the third heating temperature is a second drying temperature for drying the rest food in the canteen.
  6. 6. The method for processing food remaining in a canteen according to claim 5, wherein the electric heating device comprises a first electric heater group, a second electric heater group, a third electric heater group, and a processor; And the processor controls the first electric heater, the second electric heater and the third electric heater to execute power-on operation according to the comparison result of the detected heating temperature increment and the stored first preset threshold value or the stored second preset threshold value, so that the heating temperature reaches the first heating temperature or the second heating temperature or the third heating temperature.
  7. 7. The method for processing food left in a canteen according to claim 1, wherein a temperature sensor for detecting a heating temperature is provided in the processing container for heating food left in the canteen.

Description

Method for treating residual food in canteen Technical Field The invention relates to a technology for processing leftovers, in particular to a method for processing leftovers in a canteen. Background The residual food in the canteen usually comprises leftovers and leftovers, wherein the leftovers in the canteen are mainly meat and vegetables and are auxiliary, so that the leftovers in the canteen belong to high-protein substances, are easy to rot, and can cause serious environmental pollution after being decomposed. The existing residual food in the canteen is usually collected in a spoiled water bucket and is supplied to a pig farm to serve as pig feed, but the residual food in the canteen usually contains a large amount of bacteria, so that pigs can be infected with certain diseases, and people can be endangered if eating the pork infected with the diseases. In addition, the collected residual food in the ranched barrel emits a very unpleasant smell, which pollutes the environment. In addition, people use the kitchen waste processor to process leftovers, and the principle is that the leftovers are crushed and the crushed leftovers are discharged into a sewer. The disadvantage is that the load of the sewage treatment plant is increased and the sewage pipe network is blocked. Disclosure of Invention A first object of the present invention is to provide an environmentally friendly method for treating a large-sized canteen residual food, for treating the canteen residual food including leftovers into sterilized dry granular or fibrous powder material. A second object of the present invention is to prevent overheating of the remaining food of the canteen including leftovers during the treatment of the remaining food of the canteen into sterilized dry granular or fibrous powder material. The method for processing the residual food of the large-scale canteen of the invention for achieving the purpose comprises the following steps: sterilizing the rest food of the canteen, including leftovers and leftovers, collected from the canteen at a high temperature; stirring the residual food in the canteen while carrying out high-temperature sterilization treatment on the residual food in the canteen; detecting a heating temperature during a high-temperature sterilization process and a stirring process for the rest food in the canteen; and adjusting the heating temperature according to the detected heating temperature and the high-temperature sterilization treatment time until the rest food in the canteen is processed into dry granular or fibrous powder substances which are sterilized and are favorable for environmental protection. Preferably, detecting the heating temperature includes: detecting a heating temperature at fixed time intervals during high-temperature sterilization and stirring of the rest food of the canteen; and comparing the currently detected heating temperature with the heating temperature detected before, and obtaining the heating temperature increment. Preferably, the high-temperature sterilization treatment time comprises an initial heating period and a high-temperature sterilization period, wherein the heating temperature is quickly increased to the high-temperature sterilization temperature in the initial heating period; Wherein the heating temperature is adjusted by changing heating energy of the electric heating device. According to one embodiment of the invention, the adjusting of the heating temperature according to the detected heating temperature and the high-temperature sterilization treatment time comprises the steps of rapidly enabling the heating temperature of the residual food to reach a first heating temperature from a low temperature in an initial heating period of the high-temperature sterilization treatment time, comparing the obtained heating temperature increment with a preset threshold value in a high-temperature sterilization period of the high-temperature sterilization treatment time, and keeping the first heating temperature or reducing the heating temperature according to a comparison result, wherein the first heating temperature refers to the high-temperature sterilization temperature capable of achieving a sterilization effect. Preferably, the first heating temperature is maintained or the heating temperature is reduced according to the comparison result, wherein the first heating temperature is maintained if the heating temperature increment is lower than a preset threshold value, and the heating temperature is reduced from the first heating temperature to a second heating temperature if the heating temperature increment is higher than or equal to the preset threshold value, and the second heating temperature is the drying temperature for drying the residual food. Preferably, the heating temperature is provided by an electric heating device, and the electric heating device is a combined electric heating device and comprises a first electric heater group, a second electric