Influence of elastic characteristics of raw cotton on the mechanics of feed rollers in the cleaners from large impurities

Authors

  • Fazil Veliev Azerbaijan State University of Economics (UNEC) Istiglyaliyat str., 6, Baku, Azerbaijan, AZ 1001, Azerbaijan
  • Rahib Sailov Azerbaijan State University of Economics (UNEC) Istiglyaliyat str., 6, Baku, Azerbaijan, AZ 1001, Azerbaijan

DOI:

https://doi.org/10.15587/1729-4061.2018.143133

Keywords:

raw cotton, breaking load, large impurities cleaner, cotton mill, maturity of raw cotton, flow of raw cotton, cotton «fly» particle

Abstract

The impact of harvesting time on the quality of raw cotton, as well as on the physical-mechanical properties of the fiber, is of paramount importance, as the cotton’s maturity and content of impurities affect the quality of cleaning cotton from impurities. Our experimental study was carried out under actual field conditions. Research results have confirmed that harvesting time significantly affects the maturity and quality of raw cotton. It was established that more than 60 % of the raw cotton, harvested at the cotton boll opening from 50 % to 60 %, meet the requirements of the first industrial grade, that is, the fiber breaking load exceeds 4.5 cN. Given the fact that mature raw cotton deforms well, it leads to the enhanced cleaning effect.

The result of theoretical research is the established spreading efforts during deformation of a cotton layer by the cleaner’s blades and the analyzed shapes of the deformed layer of cotton. We estimated the elastic characteristics of raw cotton and calculated spreading efforts. To determine the numerical values for the pressure forces at which a blade acts on the flow of raw cotton, for a coefficient K of the generalized properties of a material, the magnitude V for raw cotton was adopted in a range of 0.25‒0.3.

Experiments have shown that a layer of raw cotton with a thickness from 170 to 380 mm and a width of 700 mm was loaded with the force of 3‒10 kgf concentrated along the line. Based on our calculations, it was established that 38.89 % of the raw cotton cleaning time accounts for the operation of a single blade of the roller.

The result of our experimental and theoretical research is the data that make it possible to organize effective operation of cleaning machines in the cotton cleaning industry.

Author Biographies

Fazil Veliev, Azerbaijan State University of Economics (UNEC) Istiglyaliyat str., 6, Baku, Azerbaijan, AZ 1001

Doctor of Technical Sciences, Professor

Department of technological machines and equipment of the branch

Rahib Sailov, Azerbaijan State University of Economics (UNEC) Istiglyaliyat str., 6, Baku, Azerbaijan, AZ 1001

PhD, Associate Professor

Department of technological machines and equipment of the branch

References

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Published

2018-09-26

How to Cite

Veliev, F., & Sailov, R. (2018). Influence of elastic characteristics of raw cotton on the mechanics of feed rollers in the cleaners from large impurities. Eastern-European Journal of Enterprise Technologies, 5(1 (95), 53–60. https://doi.org/10.15587/1729-4061.2018.143133

Issue

Vol. 5 No. 1 (95) (2018): Engineering technological systems

Section

Engineering technological systems

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Copyright (c) 2018 Fazil Veliev, Rahib Sailov

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