Effect of Sieve Drum Inclination Angle on Wheat Grain Cleaning in a Novel Rotary Cleaning Device

2017 ◽  
Vol 60 (5) ◽  
pp. 1751-1758 ◽  
Author(s):  
Zbigniew Krzysiak ◽  
Waldemar Samociuk ◽  
Anna Skic ◽  
Grzegorz Bartnik ◽  
Janusz Zarajczyk ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Inclination Angle ◽  
Separation Process ◽  
Mass Separation ◽  
Cleaning Process ◽  
Wheat Grain ◽  
Wheat Grains ◽  
Cleaning Device ◽  
Inclination Angles

Abstract. In this study, a novel rotary cleaning device was used for the separation and cleaning of wheat grains. This research analyzed the influence of the inclination angle of the sieve drum (K) of the device on the quality of these processes. In this article, the results obtained for four selected rotational speeds (nb) of the sieve drum are presented. The quality of the separation and cleaning of the wheat grains was evaluated using three cleaning process parameters: coefficient of plump grain mass separation (Wz), coefficient of fine impurities separation (Wd), and total coefficient of cleaning effectiveness (E). Based on statistical analysis of the results, the inclination angle of the sieve drum had a significant effect on the quality of the wheat grain separation process. Coefficient Wz was highest for sieve drum inclination angles of K = 0° and K = 2.5°, whereas Wd was highest for K = -2.5°. The total coefficient of cleaning effectiveness (E) was characterized by different values for different inclination angles of the sieve drum. Keywords: Cleaning effectiveness, Conical sieve, Rotary cleaning device, Wheat grain cleaning.

scholarly journals Analysis of the Sieve Unit Inclination Angle in the Cleaning Process of Oat Grain in a Rotary Cleaning Device

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 346
Author(s):  
Zbigniew Krzysiak ◽  
Waldemar Samociuk ◽  
Janusz Zarajczyk ◽  
Zdzisław Kaliniewicz ◽  
Daniel Pieniak ◽  
...  
Keyword(s):  
Inclination Angle ◽  
Mass Separation ◽  
Separation Coefficient ◽  
Cleaning Process ◽  
Cleaning Efficiency ◽  
Work Related ◽  
Multi Stage ◽  
Air Stream ◽  
Cereal Grain ◽  
Cleaning Device

The article presents some of the research on the wider work related to testing and improving a new rotary cleaning device. The new cereal grain cleaning and separation device can support the development of sustainable agriculture in terms of seed purity and quality. This device is especially useful for small and medium-sized farms. This device has the characteristics of a multi-stage screen aided by an air stream (i.e., by pneumoseparation). The prototype was constructed at the University of Life Sciences in Lublin. The research was conducted at a test stand, which allowed changes in the operating parameters of the cleaner and their measurement. The scope of the tests included determining the influence of the inclination angle of the sieve unit (α) on the effectiveness and efficiency of oat grain cleaning. The experiment was carried out using two rotational spindle speeds: 5 and 75 rpm. The quality of the separation and cleaning of oat grains was evaluated using six cleaning process parameters: plump grain mass separation coefficient (Spg), fine grain separation coefficient (Sfg), fine impurities separation coefficient (Sfi), chaff separation coefficient (Sch), total coefficient of cleaning effectiveness (E), plump grain cleaning efficiency (qpg). Results showed the significant effect of the sieve drum inclination angle on the efficiency and effectiveness of oat grain cleaning.

Effect of Sieve Unit Inclination Angle in a Rotary Cleaning Device for Barley Grain

2020 ◽  
Vol 63 (3) ◽  
pp. 609-618
Author(s):  
Zbigniew Krzysiak ◽  
Waldemar Samociuk ◽  
Janusz Zarajczyk ◽  
Karolina Beer-Lech ◽  
Grzegorz Bartnik ◽  
...  
Keyword(s):  
Inclination Angle ◽  
Barley Grain ◽  
Separation Coefficient ◽  
List Type ◽  
Technological Parameters ◽  
Cleaning Efficiency ◽  
Multi Stage ◽  
Cereal Grain ◽  
Cleaning Device

Highlights Cleaning cereal grain after harvest is very important for the quality of the product. Technological progress enables the design of new equipment for cleaning cereal grain. Grain segregation allows selecting the best grain to increase yields. The quality of segregation depends on the technological parameters of the device. Abstract. This article presents the results of laboratory tests of a new rotary cleaning device used for the separation and cleaning of barley grain. This device has the characteristics of a multi-stage screen assisted by an air stream (i.e., pneumo-separation). The prototype was constructed at the University of Life Sciences in Lublin, Poland. The tests were conducted on a test stand, which allowed changes in the operating parameters of the cleaning device and their measurement. The tests included determining the influence of the sieve drum inclination angle (a) on the effectiveness and efficiency of barley grain cleaning. The tests were carried out using two drum rotational speeds: 5 rpm and 75 rpm. The quality of the separation and cleaning of barley grain was evaluated using six cleaning process parameters: plump grain separation coefficient (Spg), fine grain separation coefficient (Sfg), fine impurities separation coefficient (Sfi), chaff separation coefficient (Sch), total coefficient of cleaning effectiveness (E), and plump grain cleaning efficiency (qpg). The results showed significant effects of the sieve drum inclination angle on the efficiency and effectiveness of barley grain cleaning. Keywords: Barley grain, Conical sieve, Grain separation, Rotary cleaning device.

The Influence of the Occipital Chamfer Inclination Angle on the Wedge-Ripper Force Loading

2020 ◽  
Vol 67 (1) ◽  
pp. 122-126
Author(s):  
Victor I. Myalenko ◽  
Svetlana I. Rudakova ◽  
Nikolay A. Marinov
Keyword(s):  
Inclination Angle ◽  
Lower Layer ◽  
Front Surface ◽  
Back Side ◽  
Total Energy Consumption ◽  
Sandy Area ◽  
Inclination Angles ◽  
Blade Edge ◽  
Body Resistance

The tillage implement plowshare acts on the soil similarly to a wedge-ripper. This is the most loaded and fast wearing part. The wedge-ripper blade when worn usually becomes dull quickly, and an occipital chamfer is formed on the back side. It creates additional traction resistance, prevents the blade introduction into the processed area, reduces the productivity and quality of agricultural implements work. (Research purpose) To determine the occipital chamfer inclination angle influence of the wedge-ripper in the range of 5-25 degrees on the resultant loading force characteristics. (Materials and methods) The authors conducted laboratory tests of wedge-ripper experimental samples made with different occipital chamfer inclination angle on the blades edges back sides. The authors used installation for accelerated testing of soil-cutting parts and strain gauging equipment. On all samples, the wedge-ripper front surface inclination was set to 30 degrees. They changed the occipital chamfer inclination angle from 5 to 25 degrees. (Results and discussion). The authors found out that a change in the occipital chamfer inclination angle was accompanied by a change in energy indices during its movement in a sandy area. It was determined that the lower layer of the sandy area in the zone of the occipital chamfer did not fully penetrate the lower layers, and with an increase in the occipital chamfer inclination angle, a part of the sandy layer was unloaded in front of the blade and hit the wedge-ripper front surface. (Conclusions) The authors found out that with an increase in the occipital chamfer inclination angle at the blade edge, the wedge-ripper resistance increased when it was moved in a granular area. It was found out that in the contact zone between the occipital chamfer and the lower layers of the processed area at small inclination angles up to 5 degrees, the layer was crushed, and when the angle was increased to 25 degrees, additional unloading of the area in front of the blade was observed, which increased the working body resistance and the total energy consumption of the work process. The authors showed that for a direct wedge-ripper, the vector inclination angle of the resultant force to the horizontal decreased from 20 to 17 degrees.

scholarly journals SIMULATION MODELING OF GRAIN SEPARATION PROCESS ON A SCREEN

2020 ◽  
Author(s):  
A.A. Doroshenko ◽  
◽  
V.V. Krikunov ◽  
V.A Serdyuk
Keyword(s):  
Agricultural Production ◽  
Simulation Modeling ◽  
Rolling Friction ◽  
Simulation Software ◽  
Separation Process ◽  
Wheat Grain ◽  
Important Work ◽  
Agricultural Materials ◽  
Significant Spread

Cleaning and sorting agricultural materials are important processes in agricultural production. Many researchers have carried out important work on the study of the optimization of the parameters of grain cleaning machines. One of these parameters that affect the quality of the machine is the shape and parameters of the screen separator. A model of wheat grain in the EDEM Simulation software package is presented. Analysis of the results obtained using the contact model Hertz-Mindlin (no slip) with RVD Rolling Friction showed a significant spread in the speeds of grain material movement along the length of the sieves. The described method can be used to solve the problem of finding the flow rate of grain material when designing grain cleaning machines, with subsequent optimization of their functioning.

scholarly journals The potential of biochar for reducing the negative effects of soil contamination on the phytochemical properties and heavy metal accumulation in wheat grain

2017 ◽  
Vol 26 (1) ◽  
pp. 34 ◽  
Author(s):  
Krzysztof Różyło ◽  
Michał Świeca ◽  
Urszula Gawlik-Dziki ◽  
Magdalena Stefaniuk ◽  
Patryk Oleszczuk
Keyword(s):  
Soil Contamination ◽  
Contaminated Soils ◽  
Total Content ◽  
Syringic Acid ◽  
Heavy Metal Accumulation ◽  
Wheat Grain ◽  
Negative Effects ◽  
Wheat Grains ◽  
Al Content

The food industry faces the problem of soil contamination and consequently the deterioration of the quality of plant products. Here, we present a study on evaluation of the effect of fertilization with sewage sludge (SL) with varying, rates of biochar (BC 2.5, 5 and 10% of DW) on yield quality and the accumulation of heavy metals in wheat grains. The greatest grain yield with the highest content of protein and gluten as well as the highest total content of phenols and flavonoids, was obtained when SL+5%BC fertilization was applied. The addition of 5%BC and 10%BC to SL resulted in the greatest increase in the antioxidant capacity of grain. Among phenolic acids, syringic acid was found in the largest amount in grain in the SL+2.5%BC treatment. A significant decrease in Pb accumulation in wheat grain after application of SL+5%BC and a successive decrease in Al content with increasing BC addition were observed. To increase the quality of wheat grains and to reduce the bioaccumulation of harmful elements after the application of biochar to the soil is important in the context of food safety and health of humans especially in food production on acidic and/or contaminated soils.

scholarly journals EFFECT OF POLYMYXOBACTERIN ON PRODUCTIVITY AND QUALITY OF WINTER WHEAT GRAIN IN THE FOREST-STEPPE CONDITIONS OF UKRAINE

2012 ◽  
Vol 14 ◽  
pp. 121-128
Author(s):  
V. F. Skarzhinsky ◽  
I.C. Broschak ◽  
Yu.T. Fedorchak ◽  
L.M. Tokmakova
Keyword(s):  
Winter Wheat ◽  
Forest Steppe ◽  
Wheat Grain ◽  
Wheat Grains

The positive dynamics of Polymyxobaсterin on productivity and quality of winter wheat grains of the Smuglyanka cultivar was observed in the conditions of the western Forest-steppe of Ukraine.

scholarly journals THE EFFECT OF HYDROTHERMAL TREATMENT IN INCREASING THE STRENGTH OF THE SHELL OF WHEAT GRAIN IN PREPARATION FOR VARIETAL GRINDING

2020 ◽  
pp. 71-75
Keyword(s):  
Hydrochloric Acid ◽  
Phosphoric Acid ◽  
Hydrothermal Treatment ◽  
Climatic Conditions ◽  
Wheat Grain ◽  
Wheat Grains ◽  
Yield And Quality

The effect of hydrothermal treatment on the strength of the wheat grain shell before the first torn process is investigated. It was found that the anatomical parts of wheat grains grown in arid climatic conditions are firmly interconnected, which, in turn, affects the yield and quality of varietal flour. The aim of the study is to weaken strong native connections and improve the yield and quality of flour. The effect of NaHCO3, H3PO4, CH3COOH, HCl additives to water on the yield and quality of flour was studied. Accordingly, in solutions of 0.1-0.2% hydrochloric acid and 0.3-0.8% phosphoric acid, an increase in the yield of flour and an improvement in its baking properties were determined.

scholarly journals CORRELAÇÃO ENTRE O TEOR DE PROTEÍNAS EM GRÃOS DE TRIGO E A QUALIDADE INDUSTRIAL DAS FARINHAS

2002 ◽  
Vol 20 (1) ◽  
Author(s):  
LUIZ CARLOS GUTKOSKI ◽  
OTONI ROSA FILHO ◽  
CASSIANA TROMBETTA
Keyword(s):  
Protein Content ◽  
Wheat Flour ◽  
Chemical Constituents ◽  
Wheat Cultivars ◽  
Falling Number ◽  
Wheat Grain ◽  
Thousand Grain Weight ◽  
Dough Strength ◽  
Wheat Grains

Estudou-se o efeito da concentração de proteínas do grão de trigo na qualidade industrial das farinhas, bem como o estabelecimento de curvas de calibração mediante espectrofotometria de reflectância no infravermelho proximal (NIR). Amostras de grãos de trigo dos cultivares OR 1 e Rubi foram coletadas em regiões produtoras do sul do Brasil e realizadas análises de umidade, proteína bruta, peso de mil grãos, peso do hectolitro, grau de extração, número de queda, força do glúten (W), tenacidade (P), extensibilidade (L) e relação P/L. As farinhas das amostras de trigo do cultivar Rubi mostraram-se superiores quanto às características alveográficas avaliadas em comparação com as farinhas das amostras de trigo do cultivar OR 1. O teor de proteína bruta das amostras de grãos de trigo do cultivar Rubi apresentou correlação com a força geral do glúten (0,75) e relação P/L (-0,71). Os coeficientes de determinação das equações de proteína bruta (0,99) e umidade (0,95), obtidos nas curvas de calibração pelo NIR foram adequados para predizer a concentração dos constituintes químicos avaliados. CORRELATION BETWEEN PROTEIN CONTENT IN WHEAT GRAINS AND THE INDUSTRIAL QUALITY OF FLOURS Abstract The protein content of wheat grain in the industrial quality of flours was studied, as well as the development of calibration curves by NIR. Samples of wheat cultivars OR-1 and Rubi were collected in several regions and the analysis of moisture, protein content, thousand grain weight, hectoliter weight, flour extraction grade, falling number and alveography were undertaken. The wheat flour samples of the Rubi cultivar were superior for the alveography characteristics evaluated in comparison with the wheat samples of cultivar OR1. The protein content of wheat samples cultivar Rubi showed correlation with dough strength (0,75) and P/L ratio (-0,71). The determination coefficients for protein (0,99) and moisture (0,95) equations were adequate to predict the concentration of the chemical constituents evaluated.

The Effects of Exercise Commitment Facilitated by Service Quality of Smartphone Exercise Applications on Continued Exercise Intention

2019 ◽  
Vol 118 (1) ◽  
pp. 14-19
Author(s):  
Boo-Gil Seok ◽  
Hyun-Suk Park
Keyword(s):  
College Students ◽  
Factor Analysis ◽  
Regression Analysis ◽  
Statistical Analysis ◽  
Correlation Analysis ◽  
Service Quality ◽  
Frequency Analysis ◽  
Primary Data ◽  
Exercise Intention

Background/Objectives: The purpose of this study is to examine the effects of exercise commitment facilitated by service quality of smartphone exercise Apps on continued exercise intention and provide primary data for developing and/or improving smartphone exercise Apps. Methods/Statistical analysis: A questionnaire survey was conducted amongst college students who have experiences in using exercise App(s) and regularly exercise. The questionnaire is composed of four parts asking about service quality, exercise commitment, continued exercise intention, which were measured with a 5-point Likert Scale, and demographics. Frequency analysis, factor analysis, correlation analysis, and regression analysis were carried out to analyze the obtained data with PASW 18.0.

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