RU2715341C1 - Uhf plant with biconical resonator to attenuate strength of connection of hair coat to skin of rabbit hides in continuous mode - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: invention relates to microwave equipment and can be used for rabbit hides processing. Microwave apparatus to attenuate the strength of the combination of the hair coat with the skin of rabbits, a horizontally located symmetrical biconical resonator 1 is provided. Inside the resonator there is coaxial working branch of conveyor 3 made of dielectric material in the form of mesh belt and moving due to motor-reducer, shaft of which is connected to shaft 7 of drive drum. Hollow branch of the conveyor is laid beyond the limit of the biconical resonator, which has slots in the area of tops, the width of which is greater than the band width, and the height of the slots is less than a quarter of the wavelength. Magnetrons 2 of microwave generators are located in base of cones with shift by angle of 120 degrees, and on generatrix of one cone over working branch of conveyor there is pneumatic line 9. On the generatrix of the other cone of the biconical resonator, under the working branch of the conveyor there is brine atomizer 5. Brine drain pipe 6 is located in the area of maximum diameter of bases of the biconical resonator, under the upper branch of the conveyor belt.

EFFECT: proposed microwave apparatus to attenuate strength of the hair coat joint with skin of the rabbit hides, it is possible to effectively separate the hair coat from rabbit hides and ensure reliable operation of the generators.

1 cl, 4 dwg

Description

The invention relates to microwave equipment and can be used in rabbit farming, for example, to weaken the strength of the connection of the hairline with the skin and collection from the skins of rabbits.

Known methods for dehairing animal skins using salts, alkalis, sulfides and an enzyme preparation are long-term, the quality of fluff is low [1, 2].

Our proposed technology for collecting fluff and the developed installation is designed to weaken the strength of the hairline and skin during the selective heating of the skins of rabbits that were cleared in brine during the movement of the skins using a mesh conveyor through a biconical resonator of a microwave oven. The steamed skin with brine in an electromagnetic field of ultra-high frequency (EMF) creates such conditions that skin softens, pores expand, the hair follicles are quickly destroyed and the hair is released.

It is known that open resonators are called such vibrational systems that have fairly solid eigenoscillations, accompanied by radiation of energy into the surrounding space. In order to increase the radiation quality factor, open resonators are used on segments of waveguides, the cross section of which decreases from the center to the edges. For example, a symmetric biconical resonator is created on the basis of a circular waveguide, the radius of which varies according to a linear law [3].

Microwave installation with a biconical resonator for weakening the strength of the connection of the hairline with the skin of the skins of rabbits in a continuous mode is characterized by

that a working branch of the conveyor made of dielectric material in the form of a mesh tape is coaxially installed inside the horizontally located biconical resonator, and the idle branch of the conveyor is laid outside the limit of the biconical resonator, having in the region of the vertices of the slit the width of which is greater than the width of the tape and the height of the slits is less than a quarter wavelengths

moreover, the magnetrons of the microwave generators are located in the area of the bases of the cones with an angle shift of 120 degrees, and on the generatrix of one cone above the working branch of the conveyor there is a pneumatic pipe, on the generatrix of the other cone a brine sprayer is installed under the working branch,

while the drain pipe is located in the region of the maximum diameter of the bases of the biconical resonator under the upper branch of the conveyor belt.

An object of the invention is the development of a microwave installation to weaken the strength of the connection of the hairline with the skin during the selective heating of the skins of rabbits, weaned in brine in a continuous mode.

In FIG. Figure 1 shows a spatial image of a microwave installation with a biconical resonator to weaken the bond strength of the hairline with the skin of rabbit skins in a continuous mode (general view).

In FIG. 2 shows a spatial image of a microwave installation with a biconical resonator to weaken the strength of the connection of the hairline with the skin of rabbit skins in continuous mode (sectional view):

1 - symmetric biconical resonator; 2 - magnetrons; 3 - conveyor of dielectric material in the form of a mesh tape; 4 - rabbit skin; 5 - brine sprayer; 6 - pipe for draining the brine; 7 - shaft of an electric motor with a drive drum; 8 - supporting rollers; 9 - pneumatic pipeline.

In FIG. Figure 3 shows a spatial image of a biconical resonator having gaps for feeding the skin and unloading the skin, indicating the location of microwave energy emitters, a brine atomizer, a pneumatic conduit for collecting hair and a drain pipe.

In FIG. 4 shows a spatial image of a conveyor made of a dielectric material in the form of a mesh tape.

Microwave installation with a biconical resonator for weakening the strength of the connection of the hairline with the skin of the skins of rabbits in a continuous mode is performed as follows (Fig. 1-4) . The main elements of the microwave installation are: symmetric biconical resonator 1; magnetrons 2; conveyor 3 of a dielectric material in the form of a mesh tape; rabbit skin 4; brine sprayer 5; nozzle for draining brine 6; an electric motor shaft with a drive drum 7; roller bearings 8; air line 9.

The following equipment is on the mounting frame: biconical resonator; gear motor for conveyor drive; air pump; brine tank; pump for spraying brine. In FIG. 1 mounting frame not shown.

The symmetric biconical resonator 1 is assembled from two cones, so that their bases are docked. Moreover, the axis connecting the tops of the cones is located in the horizontal plane. Inside the horizontally located biconical resonator 1, a working branch of the conveyor 3 is made coaxially, made of a dielectric material in the form of a mesh tape. On the working branch lay the unfolded hide of 4 rabbits, with the head side to the mesh tape. The tape is held on the support rollers 8. The conveyor is driven by a gear motor, the shaft of which is connected by a shaft 7 of the drive drum. The idle branch of the conveyor 3 is laid outside the limit of the symmetric biconical resonator 1, which has slots in the region of the vertices. The dimensions of the slots are matched with the wavelength to ensure the radio tightness of the installation and to obtain a sufficiently high Q-factor of the resonator. The height of the slots should not exceed a quarter of the wavelength, then the propagation of electromagnetic waves outside the cavity will be limited. The width of the slit should allow the passage of the working branch of the conveyor 3, i.e. it is more than the width of the mesh tape. The emitters from magnetrons 2 microwave generators are located in the area of the bases of the cones along the perimeter, with a shift by an angle of 120 degrees, this eliminates the malfunction of neighboring generators.

On the generatrix of one cone, above the working branch of the conveyor 3, there is a pneumatic pipe 9, and on the generatrix of the other cone, under the working branch, there is a brine atomizer 5. In the region of the maximum diameter of the bases of the biconical resonator 3, under the upper branch of the conveyor belt 3 there is a nozzle for draining the remaining brine 6.

In the middle part of the biconical resonator 1, there are waves whose propagation constants decrease when moving away from the center of the resonator. In this case, surfaces are formed from which almost complete reflection of the waves is observed. Since these surfaces are inside the resonator 3, the radiation from open slots is significantly reduced. But at the same time, with an increase in the quality factor, the density of the spectrum of natural oscillations increases. Biconical resonators 1 can be of any cross section, consistent with the wavelength. In such resonators, it is possible to obtain the highest possible Q factor due to the small longitudinal currents in the walls. The presence of gaps in the transcendental regions makes it possible to place the raw material in the internal cavity of the biconical resonator 1. In this case, the holes for the emitter (communication holes of the resonator with the EMP source) must be located in the region of the maximum diameter of the biconical resonator 1, i.e. bases of cones.

The conveyor branches, made of dielectric material in the form of an endless mesh tape, relying on the rollers, bend around the drive and tension drums located at the ends of the conveyor.

The technological process of weakening the strength of the connection of the hairline with the skin of the skins of rabbits and its collection in a continuous mode is as follows.

Turn on the geared motor (shaft 7) for driving the conveyor 3 made of dielectric material in the form of a mesh tape located on the support rollers 8. Lay the unfolded rabbit skin 4 on the working branch of the conveyor with the head side 3. Turn on the pump for pumping brine to the sprayer 5. Turn on the microwave generators, after which the electromagnetic field of the microwave is excited in the symmetric biconical resonator 1. The skin is selectively heated, the skin of which is soaked in brine of a certain concentration. The steamed skin with brine in an ultra-high frequency electromagnetic field creates conditions such that the skin softens, pores expand, the hair follicles are quickly destroyed and the hair is released. Next, turn on the air pump. It provides transportation of the hairline separated from the skin to the cyclone through the pneumatic conduit 9. During the spraying of the brine through the mesh tape, the remaining brine flows through the drain pipe 6 into a special brine tank.

Moreover, the location of the emitters along the perimeter of the base of the cones with shifts of 120 degrees ensures reliable operation of the generators, i.e. the reflected waves from one generator do not knock out neighboring magnetrons 2.

Sources of information

1. A.S. No. 40499, http: //www.findpatent. / 4 / en / patent 40499.html

2.http: //www.findpatent.ru/patent/3/35319.html

3. Drobakhin, O.O. Microwave technology and semiconductor electronics: Textbook [Electronic Edition] / O. O. Drobakhin, S. V. Plaksin, V. D. Ryabchiy, D. Yu. Saltykov. - Sevastopol: Weber, - 2013 .-- 322 p.

Claims (4)

Microwave installation with a biconical resonator for weakening the strength of the connection of the hairline with the skin of the skins of rabbits in a continuous mode is characterized by that a working branch of the conveyor made of dielectric material in the form of a mesh tape is coaxially installed inside the horizontally located symmetric biconical resonator, and the idle branch of the conveyor is laid outside the limit of the biconical resonator having in the region of the vertices of the slit the width of which is greater than the width of the tape and the height of the slits is less than quarter wavelength moreover, the magnetrons of the microwave generators are located in the area of the bases of the cones with an angle shift of 120 degrees, and on the generatrix of one cone above the working branch of the conveyor there is a pneumatic pipe, on the generatrix of the other cone a brine sprayer is installed under the working branch, while the drain pipe is located in the region of the maximum diameter of the bases of the biconical resonator under the upper branch of the conveyor belt.

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