RU2336008C2 - Mechanised microwave egg boiler - Google Patents

Abstract

FIELD: household goods and personal effects; food products.

SUBSTANCE: mechanised microwave egg boiler contains two microwave ovens without doors. Microwave ovens are installed with clearance in opposite to each other. Clearance size is equal to half of wave length. Ovens are turned so that chain conveyor passes through them in horizontal plane. Guiding borders for conveyor are embedded at both sides of oven control board on tray made from non-ferromagnetic material. There is a window for microwave oven at the tray. It is closed with radio transparent plate sized as operating chamber. Chain passes near operating chamber and contains dowels for fixing bottom-free flouroplastic containers. Tray is closed with aluminum lid. Conveyor gear-motor drive is fixed from its end at bottom side of tray.

EFFECT: egg boiler productivity improvement due to cyclic microwave effect.

1 dwg

Description

The invention relates to equipment for the thermal processing of food products.

A device for cooking food products on water and steam, where the cooking process takes quite a long time. In addition, water, penetrating through the pores of the shell, makes egg white more stiff (US 2807701 A, 09.24.1957).

In household electric steam and water boilers, up to 7 eggs can be cooked periodically, while to exclude cracks, a puncture is made from the blunt end of the egg using a needle - a punch. This affects the quality of the finished product and dramatically reduces its shelf life.

The closest analogue of the claimed device is a mechanized microwave egg cooker (JP 200379513 A, 03/18/2003).

Given the special structure of the egg and the electrical properties of the egg components, as well as analyzing the causes of the explosion of eggs in the microwave, the following conclusion was made.

Cooking eggs in the microwave is possible subject to the following requirements:

1. Eggs must be transported inside the cooking chamber of the oven.

2. At the same time, during transportation, the eggs should rotate around the major axis, since the size of the egg is commensurate with the penetration depth of the ultrahigh frequency electric field.

3. The speed of transportation of eggs should be consistent with the time of microwave heating and the rate of heat transfer from yolk to protein.

4. Given the static destructive force, the speed of transportation of eggs should be less than critical.

5. The speed of transportation of eggs through the working chamber should be consistent with the capacity of the oven, the number of eggs and the critical heating rate of the yolk.

The technical result, to which the invention is directed, is to increase the productivity of cooking eggs due to the cyclical effects of microwaves.

The specified technical result is achieved by the fact that the mechanized microwave egg cooker according to the invention contains two microwave ovens without doors, which are mounted opposite each other through a gap equal to half the wavelength, and rotated so that a chain conveyor passes between them in the horizontal plane, for which the guide rails are mounted on both sides of the control panel of the furnace on a tray of non-ferromagnetic material, where a window for the microwave oven is cut out and covered with a radio-transparent plate of size om working chamber, wherein the chain passes next to the working chamber and comprises pins for fixing PTFE container without a bottom, the tray is closed aluminum lid and the conveyor gear motor drive is attached to an end with the bottom of the tray.

The drawing shows a mechanized microwave egg cooker.

A microwave egg cooker consists of two furnaces 1, a working tray 2 with a lid, a chain conveyor 3, an electric drive 4 in the form of a gear motor. On a work tray 2 with sides 5 and an aluminum cover (not shown), a window 6 is cut out in the middle by the size of the working chamber of the microwave oven (along the door). The first microwave oven 1 without a door is mounted in this place from the bottom of the work tray 2. Instead of a door, at the level of the working surface of the tray, a fluoroplastic plate is fixed 7. A second microwave oven is installed above this oven so that the doors are joined in area, but between the ovens there is a gap of 8 times a quarter wavelength. On the edge of the working chamber of the first furnace, from the side of the timer handles 9 and power, guides 10 are installed for passing the chain conveyor 11 through the air gap 8 between the furnaces along the length of the working surface. In this case, the guides 10 are installed so that they do not fall into the working area of the furnace. The guides 10 for the chain conveyor 11 are made in the form of parallel sides and are fixed on the working surface of the tray 2 so that one side is at the end of the first furnace, the other at the edge of the working chamber of the same furnace.

The conveyor chain 11 is driven by a gear motor 4. It is installed on the bottom side of the working surface of the tray 2 from the end. The drive and driven 12 sprockets are mounted on the working surface of the tray 2. On the conveyor chain 11, pins 13 are fixed at certain distances, onto which dielectric containers 16 with cells 15 are suspended using dielectric handles 16. The length of the handle should allow the container to be in the middle of the working chamber of microwave ovens . Hatches 17 for loading and unloading are installed on the side of the chain conveyor near the furnaces. The working surface of the tray is covered with aluminum covers on one and the other side of the furnaces.

The cooking process is as follows. Turn on the electric drive 4 of the chain conveyor 11, lay all the cells 15 with eggs through a special hatch 17. Next, turn on both furnaces 1 using the control panel with handles 9 of the timer and power. The chain conveyor 11 moves the eggs in the containers 14 through the air gap 8 between the two ovens, where they are heated due to polarization currents. The eggs, being in the cell of the container, when moving with the help of the conveyor 11 rotate around its major axis. This allows you to achieve uniform exposure to an electric field of ultra-high frequency from all sides of the egg. Further, outside the ovens, the temperature and pressure in the components of the egg are equalized. Thus, a multiple cyclic “heat-pause” process occurs until the temperature in the protein reaches 80 ° C.

Claims (1)

A mechanized microwave egg cooker, characterized in that two microwave ovens without doors are mounted opposite each other through a gap equal to half the wavelength, and rotated so that a chain conveyor passes between them in the horizontal plane, for which the guide rails are mounted on both sides of the furnace control panel on a tray of non-ferromagnetic material, where a window for a microwave oven is cut out and covered with a radio-transparent plate the size of the working chamber, the chain passing next to the working chamber and containing t pins for fixing fluoroplastic containers without a bottom, while the tray is closed with an aluminum cover, and the gear motor of the conveyor drive is fixed from the end from the bottom of the tray.