Analysis of construction solutions of pressure equipment

UDC 631.363:633.8

D. Babenko Ph.D., professor
E. Gorbenko Ph.D., associate professor
N. Dotsenko Ph.D.
N. Kim assistant researcher
Mykolayiv State Agrarian University

Introduction. The article analyzes the existing screw pressing mechanisms and structures of working bodies of lubrication presses.
Research methodology. Variety of constructions of screw pressing mechanisms is explained by different sphere of application of these machines and individual characteristics of separate production.
All screw pressing mechanisms can be divided into the characteristic structures of the working body (screw), body and matrix into three groups.
Solving the problem of loading and moving artificial material, caused the need to create multi-presses. Initially, designs were developed with screw counter-rotation of identical length, constant step and cutting profile. In the course of further development, there were numerous variants, as well as designs with more than two screws and different geometry of working bodies.
The results. Increasing the efficiency of production, the creation of modern technologies and machines of the new generation are among the factors that ensure the stable work of the enterprises of processing industries.
Efficiently working press should provide the necessary performance and deep press with optimum technical and economic indicators.
The method of cold pressing of oil-bearing vegetable raw material allows to receive the main and auxiliary products without preliminary grinding, heat treatment and with less energy consumption. In the processing industry and in the field of forage preparation, machines with a working organ in the form of a single auger became the most widespread.
Conclusions. Along with all the advantages, complex polygonal machines with different types of working bodies, have not found wide application in the processing industries due to the complex manufacturing technology and the great complexity. On the contrary, single-screw machines, in all their drawbacks, do not yield to productivity, quality of production and cost-effectiveness of twin-screw presses.

Key words: Screw, press, pressure, press, vegetable oil, efficiency, profitability, productivity.

Analysis of construction solutions of pressure equipment

Issue 2 (94), 2017

The research of mechanization frecilities to obtain melon seeds

UDC 631.361.8

D. Babenko, Ph.D., professor
E. Gorbenko, Ph.D., associate professor
N. Dotsenko, Ph.D.
N. Kim, assistant researcher
Mykolayiv State Agrarian University

Introduction. The article analyzes the existing domestic and foreign technologies and equipment for the allocation of seeds, melons (watermelon, cantaloupe) that used in agriculture.
Research methodology. Analysis of existing domestic and foreign technologies and equipment for the vegetable and melon seeds selection showed that the cultivation of vegetable and melon crops is one of the most labor intensive agricultural production. The volume of production depends not only on growing conditions and the quality of the seed. The received seeds of vegetable and melon crops does not meet the needs of agriculture today and this leads to the need of using foreign exchange reserves to purchase seed abroad.
Thus, the development of seed vegetables and melons such as watermelon and cantaloupe, provide an opportunity to provide the seed material to the Ukrainian farms.
The results. Using methods developed to identify possible shortcomings of the seeds allocation lines . Line CSS-20 differs from the line of CSS-30 by the extractor type. These lines are designed for receiving fruit selection of these seeds, seed separation from the mucous membranes by bubbling (mixing seeds in the aquatic environment via air); laundering and drying the seeds and waste collection. The seed extractor is one of the main machines, which determines the capacity of the entire line and serves as a shredder fruits and melons and for the selection of seeds crushed mass.
As a result of the South Ukrainian machine-testing station by the productivity of 9.08 … 24.8 t / h seed losses ranging 5.8 … 8.4%; seed purity is 9.1 … 24.8%. Such low rates are caused by single-stage separation. In the separator is no separation of seeds from impurities and separation of the peel from the pulp, the pulp and juice.
Conclusions. It is analyzed existing domestic and foreign technology and equipment for the allocation of seeds, melons (watermelon, cantaloupe) used in agriculture. It is presented the structural and technological scheme of allocation of seeds of vegetable and melon crops and analysis of shortcomings in the machine and production line CSS-20.

Key words: seed, seed separation, rotary separator, vegetable and melon crops, technological scheme.

The research of mechanization frecilities to obtain melon seeds.

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Issue 4 (92), 2016