Please select the most similar patent number from A, B, C and D. Which number is?
A food production line comprises: a rolling mechanism (101), comprising at least one pair of rollers (1011); and a cooling circulatory system (102). The cooling circulatory system is used for providing a coolant to at least part of the rolls, so as to cool the rolls during the rolling process of the rolls. Also disclosed is a food processing method using the food production line. By means of the food production line, the temperatures of the surfaces of the rolls keep low, the temperatures generated in the frictions between the rolls and semi-finished materials during the rolling are reduced, and in this way, the semi-finished materials are kept in a low-temperature state, so as to inhibit the survival and the growth of bacteria and putrefactive microorganisms, thereby effectively prolonging the freshness keeping period and the quality guarantee period.
A: Provided are a method and system for monitoring a food-product processing period, said method comprising the following steps: obtaining the type and product-entry date of a to-be-processed food product (101); according to the type of the to-be-processed food product, obtaining a shelf life of the to-be-processed food product from a preset food-product processing information database (102); according to the product-entry date and the shelf life, generating a processing date of the to-be-processed food product (103); according to the processing date, monitoring the process of processing the to-be-processed food product, and according to the result of monitoring, sending a monitoring message to a preset receiving terminal (104). In the method and system for monitoring a food-product processing period, fully automatic monitoring of a food product from the time the food product enters a factory is achieved, and workers are promptly reminded to process food products which have reached their processing dates; the problem, when dealing with vegetables and other food products having short shelf lives, of it being difficult to control the processing time of the food products when large volumes of products are entering a factory is effectively solved; the expiration and deterioration of food products is effectively prevented, reducing the losses of a food processing plant.
B: A 3D food printer, comprising: a spray head component (10) for spraying a food raw material; a cooling component (20) for keeping the food raw material at a low temperature at which the food raw material does not melt or coagulate; a conveying component (30) for automatically outputting a printed food product; a printer body (40) for bearing the entire 3D food printer; a drive component for driving the 3D food printer to move in X, Y, and Z directions; and a control component for controlling the operation of the entire 3D food printer. The 3D food printer provided with a cooling system and having an increased size can store and supply a large quantity of food raw materials, and can print normally at a relatively high ambient temperature. The 3D food printer is provided with an automatic conveying system for printed products, and can automatically output the food products after printing and continue to print follow-on food products. Food can be produced continuously. The 3D food printer is easy to operate, highly effective, and can better comply with the food hygiene requirements.
C: Disclosed is a continuous roll without pressing force deviation using atmospheric pressure as pressing power, comprising at least four rolls (1), wherein the four rolls (1) form a square arrangement, two ends of the rolls (1) are respectively provided with a sealing guard plate (6), a sealed cavity is formed between the rolls (1) and the sealing guard plates (6), and the sealing guard plates (6) on at least one side are provided with an air extraction port (10). A main water trough (3) is provided below the rolls (1). A vacuum sealed cavity is formed between the four rolls (1) and the sealing guard plates (6) at the two ends. When a textile passes through the sealed cavity, air contained therein is extracted, such that when the textile comes into contact with water, the textile can be easily soaked in the water, and no surfactant is required. Costs are low, results are good, no pollution is caused, and continuous production and operation can be achieved.
D: The present invention relates to the technical field of flour food processing equipment, and discloses a special calender roll for flour food products and a manufacturing method therefor. The calender roll is disposed symmetrically and comprises a first calender roll and a second calender roll, and the two calender rolls are of the same structure. The calender roll comprises two support shafts, and a cylindrical base body is provided between the two support shafts. The cylindrical base body of the calender roll is sleeved with a calender roll barrel, protrusions of a micro-spherical structure are prepared on the outer surface of the calender roll barrel, and the outer surface of the calender roll barrel is coated with a low-surface-energy chemical vapor deposition carbon-based doped film. The present invention also provides a manufacturing method for the special calender roll for flour food products. According to the calender roll manufactured using this manufacturing method, the contact angle between water droplets and the surface of the calender roll is improved by means of an element-doped film, the adhesive capacity of a noodle belt on the surface of the calender roll is thus reduced, and the amount of water added for producing noodle by machine can be greatly increased.
Answer: D