Analyzed shadowy the method of keeping rabbits, the design of cells. Developed two technologies of processing of skins of rabbits with use of energy of electromagnetic radiation. The first technology involves the drying skins of rabbits on pravicah in the electromagnetic field of ultrahigh frequency (MPSVC). Designed installation can provide periodic or continuous mode of operation. The second technology involves separating the fur from the leather hides of rabbits with the simultaneous rychle-tion, beating and separating fibres from bunches. Discusses the design of facilities that implement these technologies of processing of skins of rabbits. The sequence of development of technological process of heat treatment of fur raw materials: a study of the shapes and sizes surround the cavity of the microwave generator; the development of modes of processing of raw materials; selection of equipment and controls. Taking into account the structural features of the device, intended for primary processing of wool, developed by the working chamber of the microwave unit that provides the melting of the skin, breaking and separation of the fibers from the fur of fried dross. The working chamber is made in the form of a rotating perforated cylinder containing the inner side surface of the special pins. On the vertical axis of the cylinder, the shaft. On the shaft wearing the stationary pipe, the outer surface of which also has pins. The cylinder is coaxially installed in the cylindrical shielding housing containing an inlet for pneumatic transport fur squares. On the upper base of the body has a generator and the drum dispenser of raw materials. Proposed operational-technological scheme of processing of fur raw materials using electromagnetic fields of ultrahigh frequency. Analyzed electrical parameters of the components of raw materials. One of the proposed variants of the working chamber of the microwave installation, ensuring continuous operation. The working chamber is made as a coaxial screen-roumega housing, the perforated cylinder with pegs and hollow pipe with pegs, inside of which a shaft for rotation of the cylinder.
The paper describes the developed ultrahigh-frequency installations with toroidal and conical resonators used for separating rabbits’ fur from hides providing high electric field strength, continuity of the technological process while observing radio-tightness and improving the quality of fluff by improving microwave technology and ultra-high-frequency installations. The technological process of collecting hair from rabbits’ skins in a microwave device with toroidal resonators is due to the weakening of the retention of the hair cover in hair follicles during the selective dielectric heating of the components of the skin and the spraying of the brine. In a biconical resonator, it is possible to obtain the highest possible high quality factor due to small longitudinal currents in the walls. The presence of gaps in the outermost regions provides the ability to move the skin through the internal cavity of the biconical resonator, where the emitters are located in the region of its maximum diameter.
Discusses the problem of reducing the operating costs of decontamination and the separation of fluff from the skins of rabbits in rabbit farms. Rabbit meat production amounted to 4.2 thousand tons, of which 70% of the total volume of Russian production falls on farms. In the Nizhny Novgorod region effectively bred rabbits breed "White Giant", which at the age of 560 days reach up to 6.8 kg, but the processing of skins is quite time-consuming. Rabbit down is widely used in the processing industry as a raw material with unsurpassed qualities for the production of knitwear, felt, cloth. The article describes the developed microwave unit with a disk conveyor with a power consumption of 6 kW, a capacity of 16 kg / h. The results of experimental studies to substantiate the complex of structural and technological parameters and modes of operation of microwave installations based on regression models, taking into account the multicriteria assessment of the technological process of separating the disinfected down raw materials from the skin with the sponge-soaked Mezdra. The annual economic effect of the use of microwave installation for collecting hair from the skins of rabbits in rabbit farms is 187 thousand rubles.
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