Experimental dehydration of wet fibrous materials

Bahadirov, Gayrat; Sultanov, Takhirjon; Tsoy, Gerasim; Nabiev, Ayder

doi:10.1051/e3sconf/202126404060

Cited by 18 publications

(11 citation statements)

References 21 publications

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“…The natural values of the pressing force of the squeezing rollers x 1 and the sample feed rate x 2 were substituted into the regression equations [4][5][6][7][8]. The regression equations [4][5][6][7][8] were, after their decoding, written for each layer of the semi-finished leather product in the following order in the named form: The results of the calculation by Fisher's criterion based on the results of the experiment show that for all five layers of semi-finished leather products, the calculated value according to the experiment is less than the tabular value. This shows that the regression equations [4][5][6][7][8] adequately describe the experimental data with a confidence level of 95 percent.…”

Section: Resultsmentioning

confidence: 99%

“…The regression equations [4][5][6][7][8] were, after their decoding, written for each layer of the semi-finished leather product in the following order in the named form: The results of the calculation by Fisher's criterion based on the results of the experiment show that for all five layers of semi-finished leather products, the calculated value according to the experiment is less than the tabular value. This shows that the regression equations [4][5][6][7][8] adequately describe the experimental data with a confidence level of 95 percent.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…In the study conducted by Omar Gamal et al, the authors describe the control of the process of hot rolling of bar and wire, with the control of the required clearance between the shafts [2,3]. The results can be useful in improving the design of roll machines for processing sheet materials with variable thickness and surface [4,5]. A study conducted by Krylov et al presented the results of the analysis of factors affecting the power consumed by the drive of the roll module [6].…”

Section: Introductionmentioning

confidence: 99%

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Improvement of the Process of Mechanical Dehydration of Five-Layer Wet Leather Semi-finished Products

Amanov¹,

Bahadirov²,

Tsoy³

et al. 2021

TLR

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To improve the process of mechanical dehydration of semi-finished wet leather products, a multilayer dehydration using felt materials – monshons was experimentally investigated. The process is conducted by vertical feed of semi-finished wet leather products on a base plate between rotating squeezing rollers. The D-optimal method of mathematical planning of the experiment and the Kano design matrix were used for conducting experiments. The multi-layer package consists of five layers of semi-finished wet leather products and two layers of moistureremoving materials between each layer, folded over the base plate. The studies were carried out in laboratory conditions on an experimental bench, taking into account the production parameters of processing. As a result of the study, mathematical dependences of the amount of removed moisture for each of five layers of semifinished wet leather product on the feed speed and the pressure of the squeezing rollers were derived. The analysis of the results showed that, with the existing parameters of mechanical dehydration, it was possible to simultaneously squeeze out moisture from five layers of the semi-finished leather product with a minimum pressure of the squeezing rollers and an average feed speed. The productivity of the technological process was more than five times higher in comparison with the productivity of similar roller machines. In the near future, this research methodology will be used to determine the technological factors affecting the extraction of excess moisture from a package consisting of ten semi-finished wet leather products and moisture-removing materials.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of the Process of Mechanical Dehydration of Five-Layer Wet Leather Semi-finished Products

Amanov¹,

Bahadirov²,

Tsoy³

et al. 2021

TLR

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show abstract

“…Therefore, due to the increased demand of consumers in the leather industry, the issue of developing and improving technological machines, taking into account the parameters of processed leather, is relevant [4]. The studies of the authors [5][6][7][8][9] are devoted to improving the design of roller technological machines for mechanical processing of leather.…”

Section: Introductionmentioning

confidence: 99%

Experimental determination of the non-homogeneity of the physical parameters of a leather semi-finished product

et al. 2023

Self Cite

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The non-homogeneity in mass and geometrical parameters of leather of one type and one manufacturing method is experimentally investigated and analyzed. Experimental studies were conducted on semi-finished cattle products of a combined batch and chrome kips from one technological batch. The results of the experiments showed that with a combined batch, between the mass and thickness of the leather semi-finished product, there is a moderate correlation between the studied physical parameters and the average error of the correlation coefficient of the leather. It is determined that high correlations are expressed between the mass and area of the leather, and between the thickness and area of the leather, respectively. It was revealed that the samples of leathers selected for experiments (kips), depending on their type, weight and area, have a higher correlation. So, between the mass, thickness and area at the standard point of the kip, there is a higher correlation between the studied physical parameters of the semi-finished leather samples. The results obtained provide an opportunity to influence the properties of leather for further creation of methods of controlling the relevant devices and equipment at various stages of production processes.

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Refined model of leather

Bahadirov,

Nabiev,

Tsoy

2024

BIO Web Conf.

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The structure of finished leather and semi-finished products differ in physical and mechanical parameters. To obtain the properties of elasticity, pliability, and viscosity required in leather production, it is necessary to ensure their values that guarantee the high quality of the resulting product. In this article, a model for finished leather is obtained based on combining the viscoelastic Kelvin model with the deformationinert Khusanov model and the Bingham–Shvedov viscoplastic model. This model makes it possible to improve the elastic-viscous plastic deformation of a fibrous material (leather). The possibility of clarifying the pattern of change in the deformation curve depending on the time the fibrous material is loaded by a certain force was explored. The aim of refining the deformation curve is that in known models, at the initial moment of loading, deformation occurs instantly up to a certain value, which does not fully describe the real physical process of deformation of the material. Consequently, in the proposed refined model, the deformation is fixedat zero value, which provides a real physical pattern of deformation of the fibrous material. The refined model will serve designers of technological machines to develop parameters of deformation during the mechanical processing of elastic-viscous plastic materials.

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Experimental dehydration of wet fibrous materials

Cited by 18 publications

References 21 publications

Improvement of the Process of Mechanical Dehydration of Five-Layer Wet Leather Semi-finished Products

Improvement of the Process of Mechanical Dehydration of Five-Layer Wet Leather Semi-finished Products

Experimental determination of the non-homogeneity of the physical parameters of a leather semi-finished product

Refined model of leather

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