MODULAR PLANT FOR THE PRODUCTION OF MEDICINAL MIXED FEEDSAND PREMIXES IN FARMS

Abstract

The article presents the results of research on the optimization of machine technology and rational design of modular units for fractional grinding of grain components of the farms own production and a ball mixer that provides high uniformity of compound feeds and a mixture of premixes from medicinal preparations, vitamin and mineral additives with filler. The specified fractional composition of the grinding (crushing ratio) is the original design of hammer mill with a vertical cylindrical interchangeable perforated sieve with perforations 4; 5; 6 mm (instead of 2 or 3 mm as used crushers) through which the particle grinding as their education freely transported by the air stream from the crusher through the cyclone to woven sieve mill, where the grinding is divided into checkpoint – specified fraction and not the checkpoint – the gathering – a large part of which is 10…15 % and pitched the Board shall be sent to the crusher for re-crushing. This results in the grinding of a given fraction, a multiple reduction in the presence of flour dust, and the elimination of energy costs for its formation. Experience has proven (23) that the fractional grinding unit provides a grinding modulus of 1,8 versus 2,4 on the crushers used, reducing the specific energy costs by 1,8…2,7 times, and operating costs are lower by 29 %. The modularity of the units with a capacity of 2,0, 4,0 and 6,0 t/h is based on the constructive interchangeability. It is taken as the basic unit with a capacity of 4,0 t/h, and in the rest, only the power of the electric motor for driving the crusher and small design changes of the crushing chamber are replaced. The set of modular installations does not have a large and metal-intensive mixer. A ball chopper-mixer is proposed, which provides a high degree of homogeneity of the mixture (95…98 %) due to simultaneous selective and diffusive mixing methods. The forms for calculating the plant's performance are presented, taking into account the daily demand and the time lost for troubleshooting, configuration and maintenance