CONSIDERATIONS ON THE USE OF ELECTRIC MOTORVIBRATORS AS DRIVE SYSTEMS FOR GRAVITATIONAL SEPARATORS

The cleaning of cereal seeds represent an essential operation of the conditioning chain.Taking into account all considerations, the experts attention has been drawn by the study of phenomena which influence upon the impurities separation process, aiming at a maximum reduction impurities. The paper presents the constructive and functional scheme of an gravitational separator driven by means of non balanced vibration generating systems known under the trade name of electrical motovibrators and also the constructive scheme of these, in view of theirs utilisation with best results for the drive of vibrating sieves. At the end of the paper are presented the advantages of using these types of acting systems for gravitational separators

EXPERIMENTAL RESEARCHES ON THE WORKING QUALITATIVE INDEXES OF TECHNICAL EQUIPMENT FOR HARVESTING MISCANTHUS RHIZOMES

The article presents the results of experimental research of the technical equipment for harvesting Miscanthus rhizomes, in order to determine the following working qualitative indexes: the percentage of extractedrhizomes, the degree of rhizome damage, rhizome losses at harvesting, the content of impurities in the mass of rhizomes and the degree of separation of extracted rhizomes. The results obtained in the experimental researches help improving the equipment for harvesting Miscanthus rhizomes in order to meet the quality requirements of the work.Experimental researches were carried out under field conditions, on the experimental plot of INMA Bucharest, the development stage of energy plant Miscanthus being in the 7th year of growing

CONSIDERATIONS ON THE IMPORTANCE OF SEED SEPARATION TECHNOLOGY BY AERODYNAMIC PROPERTIES

The article is aimed at agricultural entrepreneurs interested in the implementation of organic seed production technologies in their own units with the help of the Seed Cleaning Installation - ICS.In order to store, process or capitalise the agricultural products resulting from the harvesting process, they must undergo a pre-cleaning process that can be done depending on the aerodynamic properties of the seeds

RESEARCH ON THE WORKING PROCESS OPTIMIZATION OF A COMBINED INSTALLATION FOR GRAINS CLEANING

This paper presents experimental research of qualitative indexes of impurities separation out of grains seeds for one installation which used combined principles of separation (according to specific mass and aerodynamic properties of seeds). The installation used on the experimental research was composed of a gravity separator and an aspiration installation. Based on data obtained by measurements and regulated qualitative indicators the cleaning process indexes have been determined

CONSIDERATIONS ON THE IMPORTANCE OF JERUSALEM ARTICHOKE CROP IN HUMAN AND ANIMAL FEED

This paper aims to provide rich and updated information on the importance of the crop of Jerusalem artichoke (Helianthus tuberosus(fig.1) [8] - Astaraceae or Compositae family) in human and animal feed. Jerusalem artichoke is a plant that can be used in animal and human feed, as windbreaks in agriculture, for manufacturing pellets for heating installations, etc. Inulin, a group of oligosaccharides, is used in the food industry because of its particular nutritional characteristics

CONSIDERATIONS REGARDING THE IMPORTANCE OF ARTICHOKE CROP IN ORDER TO CAPITALIZE IT AS BIOMASS

In this paper is presented a study in that are synthesized aspects concerning the extraordinary potential which it has the crop artichoke for sustainable capitalization as: energy source, medicinal plant, but also row material in pharmacological industry to extract active compounds from cardboard

TESTING THE RESISTANCE STRUCTURES OF TRACTORS AND AGRICULTURAL MACHINERY UNDER SIMULATED AND ACCELERATED REGIME

The need for an increased quality of products, the reduction of the production entry time and the restrictions imposed by the service period of products are the essential reasons which impose the necessity of using the simulated and accelerated regime tests. An accelerated test is necessary to produce the same content of wear deterioration as that one supported by the product (machine, gear, subsystem or component) on its lifetime in normal functioning conditions. Although a test in accelerated regime doesn`t have to produce big loads, unrealistic, which could alter the defecting mechanism? The paper presents the principal methods of test acceleration and exemplifies the test in accelerated and simulated regime by a test of endurance effectuated on the structure of a two plough body, on the Hydropulse stand inside of Testing Department from INMA Bucharest. Also, the paper present photos that were taken during the years from tests in simulated and accelerated regime, on the Hydropulse stand, of different machines and agricultural gears

RESEARCH CONCERNING THE ACHIEVEMENT OF SOME APPLES SORTING EQUIPMENTS

According to the present interest of the government to encourage the fruitconsumption by the scholars, especially the apple consumption, two functional model of technical equipment for sorting apples have been designed, manufactured and tested in INMA Bucharest. These equipments can be used for sorting also others fruits with spherical shape such as oranges, peaches, grapefruits etc. The mechanized sorting process conducts to valorisation of the farmer’s production and to increase their turnover, thus is necessary to analyse and improve this process, by optimizing the working parameters

STATE OF THE ART REGARDING CONSERVATIVE TILLAGE TECHNOLOGIES

Following the expansion of soil degradation processes due to conventional agriculture and technological mistakes, over the years, the so-called conservative agricultural technologies have been studied and implemented in practice. These technologies have contributed substantially to the improvement of soil fertility and productivity and, thus, of other environmental resources. The most important component of conservation technological systems, as in the case of conventional ones, is soil tillage – loosening and processing – and the introduction of seed into the soil. Switching from conventional tillage systems to the conservative ones was not easy and generated a lot of questions that needed relevant answers, scientifically based, some of them being obtained through fundamental and applied research carried out under local specific conditions. Conservative systems are based on the less intense loosening of soil, made by different methods, without furrow return and only while maintaining a given amount of crop residues on soil surface, is being considered for this reason as environmental protection strategies. In this paper is presented an analysis of the state of research on the implementation in agriculture of conservative tillage technologies and the technical-economic and environmental impacts of applying these conservative technologies. Also, there are presented the most advanced research on optimal construction of equipment for soil processing in conservation system