The influence of rectangular shape holes on energy intensity of grinding grain

2021 ◽  
pp. 18-23
Author(s):  
A. V Cherepkov ◽  
I. V. Konoshin
Keyword(s):  
Gastric Juice ◽  
Specific Energy ◽  
Energy Intensity ◽  
Conversion Coefficient ◽  
Grinding Process ◽  
Theoretical Evaluation ◽  
Surface Theory ◽  
Rectangular Shape ◽  
German Scientist ◽  
Circular Shape

Grain before feeding to animals exposed to grinding with the purpose of increasing its digestibility. As a result of this increases the area of interaction of the feed with the gastric juice and decreases the conversion coefficient. Surface theory formulated by German scientist Rittinger, suggests that the work of AR required for the grinding process is directly proportional to newly formed surface. The purpose of this paper is a theoretical evaluation of the intensity of grinding with the use of sieves with rectangular and circular shape holes. When getting groats with the same grinding module by the use of sieves with holes of rectangular shape, one should expect the decrease of specific energy intensity. By reducing the content of dust-like fractions and reduce the total surface feed should be expected to reduce the energy intensity of pneumo transportation.

The influence of rectangular shape holes on energy intensity of grinding grain

2021 ◽  
pp. 3-8
Author(s):  
A. V. Cherepkov ◽  
I. V. Konoshin
Keyword(s):  
Gastric Juice ◽  
Specific Energy ◽  
Energy Intensity ◽  
Conversion Coefficient ◽  
Grinding Process ◽  
Theoretical Evaluation ◽  
Surface Theory ◽  
Rectangular Shape ◽  
German Scientist ◽  
Circular Shape

Grain before feeding to animals exposed to grinding with the purpose of increasing its digestibility. As a result of this increases the area of interaction of the feed with the gastric juice and decreases the conversion coefficient. Surface theory formulated by German scientist Rittinger, suggests that the work of AR required for the grinding process is directly proportional to newly formed surface. The purpose of this paper is a theoretical evaluation of the intensity of grinding with the use of sieves with rectangular and circular shape holes. When getting groats with the same grinding module by the use of sieves with holes of rectangular shape, one should expect the decrease of specific energy intensity. By reducing the content of dust-like fractions and reduce the total surface feed should be expected to reduce the energy intensity of pneumo transportation.

The association of rectangular shape holes on energy intensity of grinding grain

2020 ◽  
pp. 33-39
Author(s):  
A. V. Cherepkov ◽  
I. V. Konoshin
Keyword(s):  
Gastric Juice ◽  
Specific Energy ◽  
Energy Intensity ◽  
Conversion Coefficient ◽  
Grinding Process ◽  
Theoretical Evaluation ◽  
Surface Theory ◽  
Rectangular Shape ◽  
German Scientist ◽  
Circular Shape

Grain before feeding to animals exposed to grinding with the purpose of increasing its digestibility. As a result of this increases the area of interaction of the feed with the gastric juice and decreases the conversion coefficient. Surface theory formulated by German scientist Rittinger, suggests that the work of AR required for the grinding process is directly proportional to newly formed surface. The purpose of this paper is a theoretical evaluation of the intensity of grinding with the use of sieves with rectangular and circular shape holes. When getting groats with the same grinding module by the use of sieves with holes of rectangular shape, one should expect the decrease of specific energy intensity. By reducing the content of dust-like fractions and reduce the total surface feed should be expected to reduce the energy intensity of pneumo transportation.

Grinding Performance of Porous Diamond Wheels on Different Materials

2011 ◽  
Vol 189-193 ◽  
pp. 3191-3197
Author(s):  
Qiu Lian Dai ◽  
Can Bin Luo ◽  
Fang Yi You
Keyword(s):  
Grain Size ◽  
Specific Energy ◽  
Experimental Results ◽  
Grinding Process ◽  
High Porosity ◽  
Grinding Forces ◽  
Abrasive Grain ◽  
Grinding Conditions ◽  
Medium Porosity ◽  
The One

In this paper, metal-bonded diamond wheels of different sized abrasive grain with different porosity were fabricated. Grinding experiments with these wheels on three kinds of materials were carried out under different grinding conditions. Experimental results revealed that wheel with high porosity (38%) had smaller grinding forces and specific energy than the one with a medium porosity (24%) on grinding G603. However, on grinding harder materials like Red granite or ceramics of Al2O3, the wheel with 38% porosity had bigger grinding forces and specific energy than the wheel with 24% porosity. Both wheels exhibited good self-sharpening capability during the grinding process of G603 and Red granite, but on grinding ceramics of Al2O3 the wheel with 38% porosity displayed in dull state during the grinding process . With the same porosity, the grinding forces of the wheel with a grain size of 230/270 US mesh were lower than the one with a grain size of W10 when grinding Red granite and ceramics of Al2O3. However revising results were obtained on grinding G603.

scholarly journals Model Based on an Effective Material-Removal Rate to Evaluate Specific Energy Consumption in Grinding

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 939 ◽  
Author(s):  
Amelia Nápoles Alberro ◽  
Hernán González Rojas ◽  
Antonio Sánchez Egea ◽  
Saqib Hameed ◽  
Reyna Peña Aguilar
Keyword(s):  
Energy Consumption ◽  
Material Removal Rate ◽  
Specific Energy ◽  
Chip Formation ◽  
Material Removal ◽  
Removal Rate ◽  
Specific Energy Consumption ◽  
Industrial Scale ◽  
Depth Of Cut ◽  
Grinding Process

Grinding energy efficiency depends on the appropriate selection of cutting conditions, grinding wheel, and workpiece material. Additionally, the estimation of specific energy consumption is a good indicator to control the consumed energy during the grinding process. Consequently, this study develops a model of material-removal rate to estimate specific energy consumption based on the measurement of active power consumed in a plane surface grinding of C45K with different thermal treatments and AISI 304. This model identifies and evaluates the dissipated power by sliding, ploughing, and chip formation in an industrial-scale grinding process. Furthermore, the instantaneous positions of abrasive grains during cutting are described to study the material-removal rate. The estimation of specific chip-formation energy is similar to that described by other authors on a laboratory scale, which allows to validate the model and experiments. Finally, the results show that the energy consumed by sliding is the main mechanism of energy dissipation in an industrial-scale grinding process, where it is denoted that sliding energy by volume unity decreases as the depth of cut and the speed of the workpiece increase.

Research of extrusion’s process of feed-stuff for fish

10.12737/6503 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 95-97 ◽  
Author(s):  
Рудой ◽  
Dmitriy Rudoy
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Energy Intensity ◽  
Specific Energy Consumption ◽  
Experimental Studies ◽  
Screw Extruder ◽  
Temperature And Humidity

This article discusses a study of extrusion’s process of feed-stuff for fish on the developed two-screw extruder. The main technological requirements of fodder-stuff for fish was determined. The results of experimental studies were described, the relation of the specific energy consumption of the temperature and humidity of feed-stuff was defined. The obtained results show that the specific energy intensity of the two-screw extruder is lower than with other devices for the production of fodder-stuff for fish.

Comparison of Material Removal Characteristics in Single and Multiple Cutting Edge Scratches

2013 ◽  
Vol 797 ◽  
pp. 189-195 ◽  
Author(s):  
Xun Chen ◽  
Tahsin Tecelli Öpöz
Keyword(s):  
Cutting Force ◽  
Specific Energy ◽  
Material Removal ◽  
Experimental Results ◽  
Multiple Edge ◽  
Test Material ◽  
Grinding Process ◽  
Removal Mechanism ◽  
Material Removal Mechanism ◽  
Single Edge

This paper presents the important characteristics of material removal mechanism during single grit scratching test. Material removal mechanism in these scratches shows cutting and ploughing action varies with the number of cutting edges leading to different cutting force and specific energy. According to experimental results, single edge scratches are more efficient cutting while multiple edge scratches give more ploughing actions, which consume energy with little contribution to materials removal. The results provided an important insight of material removal during grinding process.

scholarly journals Physical, technological and technical characteristics of the blasted rock mass in terms of energy intensity of the processes

2021 ◽  
Vol 303 ◽  
pp. 01034
Author(s):  
Ivan Panachev ◽  
Ilya Kuznetsov ◽  
Anastasia Shirokolobova
Keyword(s):  
Rock Mass ◽  
Energy Consumption ◽  
Specific Energy ◽  
Energy Intensity ◽  
Coal Mines ◽  
Specific Energy Consumption ◽  
Rock Blasting ◽  
Mining Equipment ◽  
The Relationship

Kuzbass coal mines are equipped with powerful mining equipment; it is CME excavator type with bucket capacity from 4.6 m3 to 20 m3. To evaluate the efficiency of the excavation processes, a universal criterion was used – the value of specific energy consumption (kW h/m3). The dependences of excavator efficiency on the quality of rock blasting, estimated by the diameter of the average piece in the shot pile, are obtained. The relationship between the efficiency of excavators CME - 4.6, CME – 8, CME – 12.5, CME – 20, their energy intensity and the diameter of an average piece in the shot pile is determined.

scholarly journals The results of studies of specific energy intensity of the basin formation process of the onion harvester

2021 ◽  
Vol 723 (3) ◽  
pp. 032109
Author(s):  
O N Didmanidze ◽  
A S Dorokhov ◽  
A V Sibirev ◽  
M A Mosyakov ◽  
N V Sazonov
Keyword(s):  
Specific Energy ◽  
Formation Process ◽  
Energy Intensity ◽  
Basin Formation

Analysis of Specific Energy of TC18 and TA19 Titanium Alloys in Surface Grinding

2011 ◽  
Vol 325 ◽  
pp. 147-152
Author(s):  
Qiu Lin Niu ◽  
Guo Giang Guo ◽  
Xiao Jiang Cai ◽  
Zhi Qiang Liu ◽  
Ming Chen
Keyword(s):  
Silicon Carbide ◽  
Titanium Alloys ◽  
Specific Energy ◽  
Surface Grinding ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Grinding Forces ◽  
Workpiece Material ◽  
Sem Images ◽  
The Poor

As two kinds of advanced titanium alloys, TC18 and TA19 were introduced in this paper. The machinabilities of TC18 and TA19 alloys were described in the grinding process. Grinding experiments were completed using green silicon carbide grinding wheel with the coarser 100 grit. Grinding forces and specific energy in surface grinding were investigated. And then, for studying the grinding characteristic, SEM images of the workpiece material were obtained. The results indicated that specific chip formation had the great effect on the mechanism of grinding TC18 and TA19 alloys, and the scratch was the main characteristic of surface grinding. TC18 alloy had the poor grinding performance compared to TA19 alloy.

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