List of publications on a keyword: «powder»

In the article the current ways and the equipment for batching of powder шmaterials are considered. On the basis of an estimation of volume feeders accuracy authors revealed a necessity of use instead of them weight feeders: vibratory feeders or feeders of a suspension of powders in gas. There is perspective to use of feeders of suspensions of powders in gases for batching of ultra tiny portions of powders.

In article there are discussed the basic results of theoretical investigating continuous ultra-dispersed powder materials pressing process for obtaining lengthy products with nano-crystal structure. Within the framework of the hypothesis about similarity under stress conditions in compressible and incompressible materials in the pressing channel, the pressure distribution along the pressing channel is established. Using G.M. Zhdanovich equation with new material density distribution boundary conditions along the length of the pressing channel is found.

In the All-Russian Plant Quarantine Center the DEBUZZZER, dried diatomite powder of light beige color, has been presented by the Diamix Company for official testing in order to obtain the state registration of the Ministry of Agriculture. This article presents the results of laboratory studies of the DEBUZZZER preparation based on the diatomite against pests of stocks while processing wheat grain. It also shows the effectiveness of the DEBUZZZER against adult species of grain and rice weevils, their total death occurred on the 6th and 14th days accordingly, and the weight loss was up to 50%. The authors present the susceptibility to this drug by the imago of large and small meal worm, which was used to process the grain, and it caused 100% mortality on the 6th and 14th days and a decrease in the weight of test objects by 41.8 and 60.6%, accordingly. The vital activity of the larvae of the yellow mealworm beetle has decreased as a result of weight loss by 41.8%. However, the larvae remained viable and developed till pupal stage and imago despite weight loss, and death was indicated in only 6.7% of the species. The DEBUZZZER diatom powder implementation was not effective enough against the larvae of two species of Trogodermaspp.: khapra beetle and warehouse beetle, their mortality was 11.7 and 3.3% on the 20th day, accordingly. According to the authors, more frequent processing of the stored products is necessary for successful pest control.

The author of this article marks that to introduce a variety of chemical and biological preservatives different dosing pumps are used, drugs are pre-diluted or dissolved in water. Since working with acids is associated with a certain risk, the countries of Europe, where the majority of forage is harvested by silage, switched to the dry form of preservative. In Russia, the introduction of dry preservative is constrained due to lack of technical means to introduce them. For this reason, cheap preservatives, such as sulfur powder, application it is not widely known. To solve this problem we created a contact device for metered introduction of powdered preservative.

Throughout the course of carried research the adsorption capacity indicator of cocktails for a healthy diet containing vegetable fibers was studied, and it was also found that the food formulation enrichment of studied objects by apple tree pulp fine powder increases the rate of adsorption capacity.