Microwave installation for continuous heat treatment of secondary meat raw materials

Abstract

The utility model can be used in the agro-industrial complex and is designed for the continuous heat treatment, disinfection, and neutralization of unpleasant odors from minced secondary meat raw materials. The microwave unit for heat treatment of secondary meat raw materials comprises a vertically mounted non-ferromagnetic outer cylinder with an upper annular base and a lower perforated base; a coaxially positioned non-ferromagnetic inner spiral cylinder that forms a coaxial resonator with the non-ferromagnetic outer cylinder; an electrically driven fluoroplastic auger located within the non-ferromagnetic inner spiral cylinder; and magnetrons with waveguides and fans.The coaxial resonator's working area is equipped with germicidal ultraviolet electric-gas-discharge lamps. These lamps operate independently of external power sources and are self-excited by the ultra-high-frequency electromagnetic field. This simplifies the microwave unit's design, increases its operational reliability, and enables heat treatment and disinfection of secondary meat raw materials without the need for additional power sources for the germicidal ultraviolet electric-gas-discharge lamps.

Description

[0001] The utility model relates to the field of agriculture and can be used for heat treatment, disinfection and neutralization of unpleasant odors of crushed secondary meat raw materials in a continuous mode.

[0002] Microwave units for heat treatment of secondary meat raw materials are known. They contain a working chamber in the form of a coaxial resonator, loading and unloading units, and ultra-high-frequency electromagnetic field sources. However, such units typically have a complex design due to the use of additional power sources for auxiliary disinfection elements.

[0003] The technical result consists in simplifying the design of the microwave installation, increasing its operational reliability, and also in ensuring heat treatment and disinfection of secondary meat raw materials without the use of additional power sources for bactericidal ultraviolet electric gas discharge lamps.

[0004] The utility model is illustrated by the figure Fig. 1 - a microwave installation for heat treatment of secondary meat raw materials in continuous mode from the front, in section.

[0005] The microwave unit for continuous heat treatment of secondary meat raw materials consists of: a non-ferromagnetic loading tank 1; a non-ferromagnetic outer cylinder 2; a non-ferromagnetic coaxial resonator 3; a non-ferromagnetic inner spiral cylinder 4; an electric-driven fluoroplastic screw 5; magnetrons 6 with waveguides and fans; a lower perforated base 7; a non-ferromagnetic storage tank 8; a cutoff waveguide 9 with a ball valve; a dielectric pipe 10 of a pneumatic conveyor; bactericidal ultraviolet electric gas discharge lamps 11.

[0006] The technical result is achieved in that the microwave installation for heat treatment of secondary meat raw materials in continuous mode contains a vertically installed non-ferromagnetic outer cylinder with an upper annular base and a lower perforated base, inside which a non-ferromagnetic inner spiral cylinder is coaxially located, forming a coaxial resonator with the outer cylinder.

[0007] An electrically driven fluoroplastic auger with a solid helical surface and a fluoroplastic shaft is located inside the non-ferromagnetic internal spiral cylinder, ensuring continuous movement of secondary meat raw materials through the working area of ​​the unit.

[0008] The average perimeter and height of the annular volume of the non-ferromagnetic coaxial resonator are multiples of half the wavelength of the microwave electromagnetic field. Magnetrons with waveguides and fans are installed along the perimeter of the side surface of the non-ferromagnetic outer cylinder, designed to excite the microwave electromagnetic field in the non-ferromagnetic coaxial resonator.

[0009] Bactericidal ultraviolet electric discharge lamps are placed evenly around the perimeter of the non-ferromagnetic coaxial resonator. These lamps are installed without an external power source and are designed to be excited and illuminated directly in an ultra-high-frequency electromagnetic field. During operation, these lamps illuminate within the microwave field, generating a bactericidal stream of ultraviolet radiation, accompanied by ozone formation.

[0010] The design of the installation does not include corona elements, ceramic reflective surfaces, or kilohertz frequency sources, which simplifies the design and increases its reliability.

[0011] A non-ferromagnetic storage tank with an inclined base containing a cut-off waveguide with a ball valve for removing the liquid fraction is attached to the lower perforated base of the non-ferromagnetic outer cylinder.

[0012] Above the lower perforated base of the non-ferromagnetic outer cylinder, there is a dielectric pipe of the pneumatic conveyor, covered with a mesh, the cells of which do not exceed the size of the grate, while the continuation of the dielectric pipe outside the non-ferromagnetic outer cylinder is made of a non-ferromagnetic material.

[0013] The microwave unit for continuous heat treatment of secondary meat raw materials operates as follows. Pre-ground secondary meat raw materials are loaded into a loading container, after which the magnetrons are turned on. A uniform ultra-high-frequency electromagnetic field is generated in the coaxial resonator.

[0014] Under the influence of a microwave electromagnetic field, bactericidal ultraviolet electric gas discharge lamps placed in the working area of ​​a non-ferromagnetic coaxial resonator spontaneously ignite without an electrical connection and create a bactericidal flow of ultraviolet radiation with the formation of ozone.

[0015] An electrically driven fluoroplastic auger continuously moves the secondary meat raw material through the unit's working area. During processing, the raw material is heated in an ultra-high-frequency electromagnetic field, undergoing thermal treatment, disinfection, and odor neutralization. The rendered fat passes through the perforated bottom base into a storage tank, and the solid fraction is removed using a pneumatic conveyor.

[0016] This achieves the stated technical result - simplifying the design of the microwave installation while maintaining effective heat treatment and disinfection of secondary meat raw materials in a continuous mode.

Claims

A microwave unit for the continuous heat treatment of secondary meat raw materials, comprising a vertically mounted non-ferromagnetic outer cylinder with an upper annular base and a lower perforated base, a coaxially located non-ferromagnetic inner spiral cylinder that forms a coaxial resonator with the outer cylinder, an electrically driven fluoroplastic screw located inside the inner spiral cylinder, as well as magnetrons with waveguides, characterized in that bactericidal ultraviolet electric gas discharge lamps are installed in the working area of ​​the coaxial resonator, made without an electrical connection to external power sources and self-excited during operation of the unit due to the effect of an ultra-high frequency electromagnetic field.

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