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.

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 EXPERIMENTAL REEARCH ON APPLYING LAVSAN IN THE AIR BIOFILTRATION PROCESS / LAVSANO TAIKYMO ORO BIOFILTRACIJOS PROCESE EKSPERIMENTINIAI TYRIMAI

2013 ◽  
Vol 5 (4) ◽  
pp. 376-381 ◽  
Author(s):  
Alvydas Zagorskis ◽  
Aleksandra Milaknytė
Keyword(s):  
Environmental Protection ◽  
Cleaning Efficiency ◽  
Initial Concentration ◽  
Air Cleaning ◽  
Air Volume ◽  
Air Stream ◽  
Cleaning Device ◽  
Rich Solution ◽  
Material Load ◽  
Air Biofiltration

Air cleaning efficiency tests on placing material load into the lavsan biofilter were carried out. Testing included butanol vapour-contaminated air stream pulled during the boot. The studies were conducted by the Department of Environmental Protection at VGTU that developed a biofilter – an experimental biological air cleaning device. Measurements were done using 60 l/min and 90 l/min air volume aspirators under the initial pollutant concentration making 180, 305, 350, 440 and 545 mg/m3. Before measuring the concentrations of butanol lavsan cartridge, loading was periodically irrigated with nutrient-rich solution. In order to evaluate the influence of microorganisms on genus Pseudomonas, cleaning efficiency tests were repeated – Boot was moistened with water only, which allowed measuring butanol vapour concentrations after the cartridge. At the concentration of 180±9 mg/m3, efficiency reached 41% at a speed of 0,07 m/s and 46 % at a speed of 0,10 m/s. Measuring the performance of the initial concentration of 545±67 mg/m3, efficiency was 54% at 0,07 m/s and 53 % at 0,10 m/s respectively. Article in Lithuanian. Santrauka Atlikti oro valymo efektyvumo tyrimai į lašelinį biofiltrą įkrovus lavsano medžiagos įkrovą. Bandymų metu pro įkrovą buvo traukiamas butanolio garais užterštas oro srautas. Tyrimai atliekami naudojant VGTU Aplinkos apsaugos katedroje sukurtą eksperimentinį biologinį oro valymo įrenginį – biofiltrą. Matavimai atlikti leidžiant 60 l/min. ir 90 l/min. oro kiekį aspiratoriumi. Pradinės teršalo koncentracijos – 180, 305, 350, 440, 545 mg/m3. Prieš matuojant butanolio koncentracijas panaudojant lavsano medžiagos kasetę, įkrova buvo periodiškai drėkinama maistinių medžiagų prisotintu tirpalu. Pseudomonas genties mikroorganizmų įtakai valymo efektyvumui įvertinti tyrimai buvo pakartoti – įkrovos sudrėkinamos tik vandeniu, leidžiami butanolio garai, ir matuojamos koncentracijos panaudojus lavsano medžiagos kasetę. Esant 180±89 mg/m3 koncentracijai biofiltro oro valymo efektyvumas siekė 41 %, kai per įkrovą leidžiamo dujų srauto greitis buvo 0,07 m/s, ir 46 %, kai greitis 0,10 m/s. Nustatyta valymo efektyvumas. Esant 545±55 mg/m3 pradinei koncentracijai jis siekė 54 % (0,07 m/s) ir 53 % (0,10 m/s).

scholarly journals PLASMA COATING FORMED TIO2 CATALYSTS USAGE IN CLEANING THE AIR FROM NITROGEN OXIDES AND CARBON MONOXIDE / PLAZMINIU PURŠKIMU SUFORMUOTŲ TIO2 KATALIZATORIŲ TAIKYMAS VALANT IŠ ORO AZOTO OKSIDUS IR ANGLIES MONOKSIDĄ

2015 ◽  
Vol 7 (4) ◽  
pp. 365-371
Author(s):  
Vitalij Kolodynskij ◽  
Pranas Baltrėnas
Keyword(s):  
Carbon Monoxide ◽  
Nitrogen Oxides ◽  
Plasma Coating ◽  
Air Purification ◽  
Average Flow Rate ◽  
Cleaning Efficiency ◽  
Average Flow ◽  
Air Cleaning ◽  
Air Stream ◽  
Cleaning Device

The present catalytic air purification device–air cleaning device is capable to reduce nitrogen oxide sand carbon monoxide concentrations in polluted air stream and to achieve high cleaning efficiency. The principle of operation of catalytic air cleaning device is based on plasma coating formed catalysts usage. At high temperatures and oxygen concentrations in the experimental device channel, catalysts become active and reactions of conversion of pollutants start. In this research, the efficiency of cleaning the air from nitrogen oxides and carbon monoxide, by using plasma coating formed titanium oxide and copper-chromium catalysts, is carried out. 50% propane – 50% butane gas mix was used to generate polluted air flow. The maximum cleaning efficiency, cleaning the air of nitrogen oxides and carbon monoxide, reached 86% and 77%, when the average flow rate of polluted air was 0.10 m/s, oxygen concentration in II section of device was 0.5–0.6% and in I section – 0.1–0.2%. Nagrinėjamas įrenginys – katalitinis oro valymo įrenginys, mažinantis azoto oksidų ir anglies monoksido koncentracijas užterštame oro sraute. Katalitinis oro valymo įrenginys veikia naudodamas plazminiu purškimu suformuotus katalizatorius. Esant aukštai temperatūrai ir optimaliai deguonies koncentracijai įrenginio eksperimentiniame kanale, katalizatorių paviršius tampa aktyvus, ir vyksta sudėtingos teršalų konversijos reakcijos. Atliktuose tyrimuose nagrinėtas suminis titano oksido ir vario-chromo oksido katalizatorių, kurie buvo pagaminti plazminio purškimo metodu, srauto, užteršto azoto oksidais ir anglies monoksidu, valymo efektyvumas. Užterštam oro srautui sugeneruoti buvo naudojamas 50 % propano – 50 % butano dujų mišinys. Didžiausias valymo efektyvumas, valant orą nuo azoto oksidų ir anglies monoksido, atitinkamai siekė 86 % ir 77 %, esant 0,10 m/s vidutiniam užteršto srauto greičiui, 0,5–0,6 % deguonies koncentracijai II-ojoje įrenginio sekcijoje ir 0,1–0,2 % deguonies koncentracijai I-ojoje įrenginio sekcijoje.

Mechanism of PVA Brush Loading with Ceria Particles during Post-CMP Cleaning Process

2021 ◽  
Vol 314 ◽  
pp. 259-263
Author(s):  
Samrina Sahir ◽  
Hwi Won Cho ◽  
Nagendra Prasad Yerriboina ◽  
Tae Gon Kim ◽  
Satomi Hamada ◽  
...  
Keyword(s):  
Electrostatic Attraction ◽  
Particle Removal ◽  
Cross Contamination ◽  
Cleaning Process ◽  
Particle Loading ◽  
Cleaning Efficiency ◽  
Solution Ph ◽  
Cleaning Solution ◽  
Oppositely Charged ◽  
Process Interaction

Brush scrubbing is a well-known post CMP cleaning process. Interaction between PVA brush and the particles removed during the process must be considered while designing a cleaning process. In this work, the effect of cleaning solution pH was investigated in terms of particle removal from the wafer and subsequent loading to the PVA brush nodule. Higher cleaning of particles from wafer was observed for pH 2 and 12 cleaning solutions and poor cleaning for pH 7 cleaning solution. In contrast, the brushes were loaded heavily for pH 7 compared to pH 2 and 12. Higher electrostatic attraction between oppositely charged PVA and ceria surfaces provided higher ceria particles loading to PVA brush in acidic and neutral cleaning solutions. This particle loading to PVA brush can further effect cleaning efficiency as well as cross-contamination.

scholarly journals Use of ultrasound for cleaning of components of historical vehicles in Technical Museum in Brno

2020 ◽  
Vol 64 (3) ◽  
pp. 79-86
Author(s):  
K. Rapouch ◽  
M. Mrázek
Keyword(s):  
Water Drop ◽  
Bath Temperature ◽  
Cleaning Process ◽  
Fuel System ◽  
Dissolved Metals ◽  
Cleaning Efficiency ◽  
Ultrasound Frequency ◽  
Aas Method ◽  
Ultrasound Effect

Abstract In the collections of Technical Museum in Brno, large number of historical vehicles is placed. During the operation, parts of their motors are being fouled. Frequently, they become even immobile (e. g. due to a fouled fuel system). In this case, the method using ultrasound with a suitable concentrate appears as the most suitable. In fact, ultrasound works also in inaccessible places with large efficiency. Not only the chosen solution influences the cleaning efficiency, but also parameters as time, bath temperature and ultrasound frequency. The cleaning process was evaluated according to the volume of removed dirt and by observing wettability change using the measuring of contact angle of a water drop. The ultrasound shock waves influence the surface to a certain extent also mechanically. That is why, the ultrasound effect on defects in the structure was observed. The aggressivity of cleaning concentrates was evaluated on the ground of determination of dissolved metals in the baths by ET AAS method.

Research and Analysis on the Mechanical Characteristics of Brush Shape Cleaning Element in Spiral Installation

2010 ◽  
Vol 97-101 ◽  
pp. 3565-3570
Author(s):  
Yan Mei Meng ◽  
Zhen Dong ◽  
Fu Ning Lu ◽  
Shang Ping Li ◽  
Kai Xu
Keyword(s):  
Maximum Stress ◽  
Working Process ◽  
Cleaning Efficiency ◽  
Element Analysis ◽  
Structural Forces ◽  
Air Resistance ◽  
Structural Force ◽  
Cleaning Device ◽  
Sugarcane Harvester ◽  
Spiral Angle

The cleaning element is not only the key part of the sugarcane harvester, but it is also the bottleneck of the development within the whole stalk of the sugarcane harvester. In this paper, it will theoretically elaborate on the structural forces that act on the spiraled and brushed shape cleaning elements during the process of the sugarcane cleaning. The paper also elaborates on the combined rigidity of elements in different arrangement installations and the maximum stress that acts on its roots. In addition to this，the FEA (Finite Element Analysis) software-ANSYS is used to analyze the structural force, the maximum stress, and the air resistance that is generated during the working process. The results of the analysis have been validated by experimentations. The experimental results indicate that, with the proper spiral angle cleaning element installed, it can both enhance the cleaning efficiency and reduce the maximum stress and the air resistance. Accordingly, it can improve the cleaning quality, prolong the working life of the cleaning element, and reduce the idling power waste of the cleaning device.

Research on Water Trajectory to a Railway Tanker Based on High Pressure Water Jet

2013 ◽  
Vol 756-759 ◽  
pp. 4612-4615
Author(s):  
Z.X. Meng ◽  
D.H. Miao ◽  
Z.M. Wang ◽  
Y.J. Qi
Keyword(s):  
Mathematical Model ◽  
High Pressure ◽  
Water Jet ◽  
Cleaning Process ◽  
Water Cleaning ◽  
Cleaning Device ◽  
Pressure Water ◽  
High Pressure Water Jet ◽  
Set Up

Through analysis of water cleaning trajectory in a railway tanker, a mathematical model of cleaning process is set up. Then the actual cleaning trajectories are obtained, and cleaning rate of high pressure water cleaning to the railway tanker is analyzed. Simulations and experiments show that much water is saved and it also has a great significance to improve the cleaning efficiencies of cleaning device.

scholarly journals Analysis of oat grain mass separation in rotary cleaning device

Mechanik ◽  
2015 ◽  
pp. 562/453-562/460
Author(s):  
Zbigniew Krzysiak ◽  
Waldemar Samociuk ◽  
Grzegorz Bartnik ◽  
Sławomir Wierzbicki ◽  
Leszek Krzywonos ◽  
...  
Keyword(s):  
Mass Separation ◽  
Cleaning Device

scholarly journals The Parameters of Cleaning a CIP System Affected Energy Consumption and Cleaning Efficiency of the Plate Heat Exchanger

2017 ◽  
Vol 38 (1) ◽  
pp. 111-120 ◽  
Author(s):  
Joanna Piepiórka-Stepuk ◽  
Jarosław Diakun ◽  
Marek Jakubowski
Keyword(s):  
Energy Consumption ◽  
Heat Exchanger ◽  
Energy Requirement ◽  
Regression Function ◽  
Plate Heat Exchanger ◽  
Quadratic Functions ◽  
Cleaning Process ◽  
Cleaning Efficiency ◽  
Significance Level ◽  
Plate Heat

Abstract This paper presents a study on the effect of cleaning factors on the energy consumption of the cleaning process in a CIP system, and the correlation between single components of electricity necessary to perform this process and the cleanliness degree obtained. Studies were carried out in a laboratory cleaning station, wherein a plate heat exchanger contaminated with hot milk was included. The research program was developed according to a 5-level statistical plan. Based on the results, obtained with Experiment Planner 1.0, a regression function of energy requirement considering variables such as: cleaning time, temperature and flow rate of the cleaning liquid via the cleaned exchanger has been developed. Describing this relationship, linear and quadratic functions with double interactions were used. Significance level for the analysis was established at α = 0.05. Correlation analysis between components of the electricity necessary to perform the cleaning process (pump drive and heating of the cleaning agent) and the resulting degree of cleaning of heat exchanger plates was performed.

Sign in / Sign up

Export Citation Format

Share Document