TECHNOLOGIES AND TECHNICAL EQUIPMENT FOR HEMP FIBER CROP

Hemp is not a crop prohibited or restricted by law, only that such a plantation must be authorized and monitored by the Ministry of Health, the Ministry of Internal Affairs and the Ministry of Agriculture and Rural Development.The paper will present the partial results obtained in a research project in which a piece of equipment for harvesting green hemp stems was grounded and made in order to process these stems to obtain fibers. The purpose of this paper is to present a review of existing mechanical harvesting systems for hemp fiber crops with special reference to hemp

TECHNICAL ASPECTS REGARDING THE OBTAINING AND USE OF THE CAMELINE GROATS IN ANIMAL FEEDING

The by-products resulting from the extraction of oil from oilseeds represent alternative strategies for animal feeding, a new source of food. In the paper were presented some physical characteristics of cameline cakes resulting from mechanical processing with a pilot installation for the production of vegetable oils. To study the effects at the ruminal level, tests were performed on fistulized animals fed with fodder in which the camelina shrimp replaced the sunflower. The values recorded for pH dynamics indicated that camelina grist could replace sunflower seed without negative effects on ruminal metabolism under certain conditions

Researches on drying the clover through aeration to obtain hay

Harvesting, preparation and conservation of hay is a frequent method for harvesting fodder from grasslands and forage crops, especially from the hill and mountain areas. The greatest losses of nutrients are obtained by traditional drying on the stubble of the hay. These losses are in the case of unfavourable weather even at 50 ... 60%, the drying time increasing to over 6 ... 8 days. This paper presents the results of the experimental researches achieved within a new technology for shortening the time from harvesting the clover to obtaining the hay at storage humidity. A pilot ventilation installation with a monitoring and control system for working processes was used to carry out the research. During the experiments, the parameters of the aeration agent were measured: temperature and humidity, as well as clover mass characteristics: humidity, temperature, drying uniformity

Storage of grains and technical plants through active ventilation for the purpose of maintaining the quality of stored products

The problem of grain storage and storage can be approached from two perspectives: storage and storage of cereals and technical plants within individual agricultural holdings; storage and storage of cereals and technical plants within agricultural associations and companies. At the level of Romania, the storage and storage of cereals at small agricultural producers are deficient in terms of ensuring optimal storage conditions according to standards. These variants include: preservation at low temperatures; preservation by active aeration; self-preservation; chemical preservation; conservation with the help of radiation. In the paper we will approach the conservation by active aeration because it folds better for small agricultural producers. Proper aeration is one of the most important processes in a grain storage system and is essential for maintaining the quality of stored products. Aeration means the movement of a relatively small volume of air through the grain mass in order to control the temperature of the grain and to reduce the risk of product degradation. The two main objectives of aeration are to maintain a uniform temperature in the grain mass and at the same time the temperature must be as low as possible from a practical point of view. The paper will present the results of experiments for storing bulk grain in a metal cell with central aeration system, which is based on a patent. This type of storage system can be used successfully in small agricultural producers

Experimental testing of a helical rotor for compost distribution

It is well known that a manure spreader must be able to apply manure consistently, effectively and uniformly over the time. An overapplying doze will cause serios environmental problems (pollution) and a sub-applying doze will not contribute to plants growth and the applying of the fertilizer will be a loss. Corroborate with others problems such as maintaining a constant tractor speed, a constant rotational speed of the rotor, a constant and continuous flow of the material make the manure spreading machines an important subject for study and continuously improving . The propose of this study is to test a vertical helicoidal rotor for manure spreading in order to improve the machine distribution uniformity. The relation between the rotor position and rotation sense is a definitory issue for the machine performance. In order to achieve a high distribution uniformity a single helical rotor is tested and a series of possible situations of placing four rotors on the machine are analyzed. The optimal solution is given by two indicators: uniformity of spreading and distribution width. The test were made with an helical rotor having the following characteristics: high=1,1 m, maximum diameter of helical spiral=0.345 m, minimum diameter of the helical spiral= 0.114m, helical pitch=0.3m, inclination angle = 15°. After analyzing four possible situations it is observe that the combination of the maximum uniformity with minimum distribution with is the optimal solution. Experimental were carried out with compost and can be repeatable with others type of solid organic fertilizers, but a new calibration should be done. It is desirable that a trapezoidal, oval or triangle pattern with uniform sloping sides to be achieved. Because most of the spreaders actually produce an oval or triangle distribution pattern it is necessary subsequent passes that increase the time for fertilization operation

Theoretical research on kinematic and constructive parameters of roller presses for sweet sorghum

The overall objective of the project is to develop an eco-innovative system for pressing sweet sorghum by the generalised object method specific to the technical creation applied in this field. (Vitalie Belouasov). The representative technical solutions of the companies recognised in this field are known and it is necessary to use a creativity method to analyze the existing solutions, to assess technical and economic characteristics by methods specific to value analysis but also to find new constructive variants and choose the optimal variant that will then be developed by the design-research activity for the realisation of the technical documentation for the execution of an industrial prototype. The generalized object of the technical creation is in the form of a cylindrical morphological matrix, each sector representing a solution (sector represented by a triple assembly BiCjDk, the total number of solutions being: N=i·j·k solutions, some of which are known, others unknown. The incompatible ones must be eliminated, while the others must be analyzed, as they can lead to particularly efficient constructions after their complete solving