RU141129U1 - DEVICE FOR HEATING AND PASTERIZATION OF CANNED FOOD - Google Patents

Abstract

A device for heating and pasteurizing canned food, characterized in that it is additionally equipped at the output section of the microwave camera with a magazine for lids with a mechanism for feeding them to the cans, and in the zone where the microwave fields are exposed to the cans, electric heaters are installed in the microwave chamber, providing temperature of 85-90º in this area of the chamber, preventing repeated microbiological contamination of the product.

Description

The device relates to the canning industry, and in particular to devices for preheating canned food before sealing, to increase the initial temperature of canned food before sterilization and for pasteurization of canned food in a glass container.

From the sources that searched for this device, it was found that the analogue of the present invention is a device [1], consisting of a frame, a microwave camera, a plate conveyor with fingers welded to it, on which glasses with a rubberized side surface and receptacles are mounted tables for cans, while along the plate conveyor inside the microwave - camera installed thrust bar.

The disadvantages of this device is the possibility of re-microbiological seeding of canned food that has passed microwave processing when the cans of the product come out of the microwave chamber.

The aim of the proposed device is the elimination of repeated microbiological seeding and, on the basis of this, increase productivity, as well as improve the quality of the finished product.

This goal is achieved due to the fact that at the end of the microwave camera there is a magazine for covers with a mechanism for feeding them to the cans, which, after microwave processing, are immediately covered with covers, after which the cans are sealed in the seaming machine. At the same time, to suppress the vital activity of microorganisms in the area after the exposure to the microwave field, electric heaters are installed that provide a certain temperature in the chamber.

The figure shows the proposed device.

The device consists of a frame 1, a microwave camera 2, a plate conveyor 3 with fingers 4 welded to it, on which glasses 5 with a rubberized side surface and receiving tables 6 for cans are mounted. A thrust bar 7 is installed along the plate conveyor inside the microwave chamber. The device is also equipped with a magazine for covers 10 with a feed mechanism for covers 11 and electric heaters 9.

The device operates as follows: cans 8 with the product using a loading asterisk (not shown in the figure) are fed to the receiving tables 6 attached to the glasses 5 mounted on the fingers 4, welded to the plates of the plate conveyor 3, which is located in the microwave camera (resonator ) 2. When the plate conveyor moves, the cans located on the receiving tables rotate with them around their vertical axis by touching the rubberized side surface of the cups 5 with a stop bar 7 passing along the plate of the conveyor. In the process of passing through the chamber, the cans with the product are treated (heated) with microwave energy for 1-5 minutes, and the cans rotate around their axis for uniform processing. At the end of the chamber, where there is no exposure to the microwave field, the cans are covered from the lid magazine with prepared lids and then leave the chamber with the covers already closed, which prevents the microbiological contamination of the product already processed in the microwave field.

Execution example. SKO 1-82-500 cans, after filling with prepared apples and pouring the syrup, are fed to the receiving table and with it enters the microwave chamber, where, simultaneously, rotating around their axis and passing through the chamber for 2 minutes, they are heated in the microwave chamber ( resonator) with a frequency of 2400 ± 50 MHz. In this case, the temperature of the product due to uniform and rapid heating reaches 80 ° C, then at the end of the chamber, when the can leaves the zone of influence of the microwave field, it is covered with a lid supplied from the lid magazine installed at the end of the chamber, while in this area chambers by means of electric heaters maintain an air temperature of 85-90 ° C, which also prevents re-microbiological contamination of the product.

An essential distinguishing feature of the proposed device is that in order to prevent re-microbiological contamination of the product, electric heaters and a lid magazine with a feeding mechanism are additionally installed in the microwave chamber.

This device provides production accuracy, saves thermal energy, increases the performance of sterilization equipment and provides improved quality of the finished product.

Literature

1. Device for heating fruits and vegetables in containers: US Pat. 2344729 Ros. Federation: IPC A23L 3/04 / Akhmedov M.E., Ismailov T.A .; applicant and patent holder GOU VPO "Dagestan State Technical University". - No. 2007126174; declared 07/09/07, publ. 01/27/09, Bull. Number 3.

Claims (1)

A device for heating and pasteurization of canned food, characterized in that it is additionally equipped at the output section of the microwave camera with a magazine for lids with a mechanism for feeding them to the cans, and in the zone where the microwave fields are exposed to the cans, electric heaters are installed in the microwave chamber, providing in this area of the chamber, a temperature of 85-90º, preventing re-microbiological contamination of the product.

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