Modeling the process of separation of small contaminants into the stream of raw cotton moving in the area of treatment

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1 ISSN: 5-8 Vol. 5, Issue 1, Deceber 18 Modeling the process of separation of sall containants into the strea of raw cotton oving in the area of treatent E.Gaibnazarov, M.Xoiyev, F.Siroiddinov, Sh.Isayev,N.Sattarov. Naangan Institute of Gulistan state university Tashkent Institute of Textile and Light Industry ABSTRACT: The article exaines the structures of cleaners describing the separation of large and sall weed ipurities fro the cotton ass, will deterine the paraeters for calculating the cleaning effect of having an elastic bond with cotton. The essence of the theoretical analysis of the separation of weed ipurities fro a fibrous aterial with dynaic effects with the working bodies of the baking powder is deterined. The relationship between the forces acting on the ote of the working dru of the cleaner has been established and it is proposed to use the odel of A.G.Sevostyanov to describe the process of cleaning raw cotton fro weed ipurities. KEYWORDS: cotton, technology, achine picked cotton theory, equation, force, odel, fiber, huidity, cotton seed, aturity, containation, fiber containation, neps, cotton cleaning, cotton drying, ginning ills, cotton lint. I.INTRODUCTION In our research, we consider the theoretical foundations of the brush dru that separates cotton and the equations of otion of the saw dru on the grate when cleaning cotton. Cotton with a large aount of weed ipurities after it passes through the first row of the grate, the ass of cotton oves away fro the saw dru. The axiu distance of the cotton fro the grate does not affect the effect of soe cotton, so it is necessary to wake up the following grate. During the cotton cleaning process, the axiu distance of the centrifugal force fro the surface of the saw dru and the vibration of the cotton where the grate, cotton as uch as possible cleared of trash. If raw aterials becoe too heavy or shrink, then the raw aterial will be affected by the raw aterial which in turn increases the intensity of its separation fro its separation fro its raw aterial coposition. During the otion of the raw aterial contacts force between the particles and the net surface has been fored and the particles ove in the spatial direction, resulting in soe of the leaving out of the open space A.B Sevostyanov proposed a odel for describing such a echanis (1).According to this odel the reduction in the aount of raw aterial on the net surface is proportional to the ass and volue changes. Based on this odel we exaine the process of separation of containants in the strea of raw cotton oving in the cleaning zone. Before odeling this process it is necessary to deterine the pressure and intensity of the raw cotton shale flow on the substrate. Lets ust assue that the cleaning chaber has a continuous flow of cylinder net surfaces get the product Q (kg/sec).in the dru center of the coordinate head we assue the following assuptions: 1)The area of the cleaning cotton raw aterial is deterined by cylindrical layer in the polar coordinate R h r r, this is the branch of the sector where n and 1 is the nuber of pins n n 1, ) The thickness of the raw aterial in the otion is sall enough to r R relative to the sallest h R. ) The oveent of the fil is stationary and its stationary is and rational velocity is equal. 4) The speed of the pitch (surface) v does not depend on the radius of pole. 5) The pace of the raw aterial is considered to be equal to the angular velocity of the pile v b R of the pile at the beginning of each sector. Copyright to IJARSET

2 ISSN: 5-8 Vol. 5, Issue 1, Deceber 18 We write on the for of the Euler taking into account the strength and frictional force of the ass of the ass in each sector. dv dp v gr(cos f sin ) f v d d Where: ( ), v ( ) and p p ( ) is the rate and pressure of the raw aterial in the sector 1 v Flow chart of cotton raw aterial along the net surface (n=4) in the equation there are there noinal, and p. We use two ore additional links to identify the. The first contact is expressed by the law of conservation of the ass that is to be perfored for the inpatient state at the discharge portion of the oving strea in the cleaning zone. Q v Where Q Q / S, S hl, L -thelength of the cleaning agent the second one is the equation of the raw aterial. 1 A( p p )] [ Where we deterine the raw aterial density and pressure in the given section on the basis of the experiental coefficient o and p o - punching Ratio of raw aterials. Q Q v [1 A( p p )] [1 A( p p )] In view of the above entioned 5 th hypothesis () and (4) the definition of, p p p 1 v / v ) A Q / v b ( b / o and p o is defined as quoted v Copyright to IJARSET 748

3 ISSN: 5-8 Vol. 5, Issue 1, Deceber 18 Where p p ( 1 v / vb ) / A, p and v the pressure and speed of the feedstock transfer to the treatent zone. Thereby expressing the density in the cleavage zone by speed pressure over the following forulas: 1 A( p )], v v 1 A( p p )] [ p (4) In equations we use (1) equation for pressure: Where: F A [ gr(cos f sin ) fv b, 1 A vb [ gr(cos f sin )(1 Ap F 1 A ] b[ vb dp F ( ) F( ) (5) d ) fv (5) The general solution of the linear first linear equation with respect to 1 1 b (1 Ap p exp[ F ( )][ C F( t)exp[ F1 ( t)] dt] (6) A [ gr(sin f cos ) fvb ] Where: F1 1 A vb (6) These conditions are deterined by the initial part of the solution variables in the solution: p p, 1 If you find C using these conditions then the appearance of the solution will be p exp[ F ( )][ p exp[ F ( )] F( t)exp[ F ( t)] dt] (7) The density and speed of the raw aterial flow in each section is deterined by the forula 4 We use Savestyan s odel as shown above for the theoretical study of the process of separation of dirt particles fro raw aterials d d Where, a the positive constant that is deterined by the experiental paraeter (8) we define 1 1 a the interconnected ass and the density of raw aterials diinished in the case of ( ) under constant )] 1 ( ) (9) According to the forula analysis for the reduction of the raw aterial ass in each section, the density of the raw aterial should be inequality Detection efficiency is deterined by this forula: 1 Copyright to IJARSET 748

4 ISSN: 5-8 Vol. 5, Issue 1, Deceber 18 When calculating the calculation the friction coefficient between the surface of the surface and the surface is deterined by this forula: f f (1 ) S / S t -the surface of the open surface of the proposed substrate S t The calculations were ade for the following paraeters:, 4 n,, 15 Q 1 / 6 kg/ s, R., 5 s 1, p 15 Pa, v 5/ s, f., h. 8, L figure graphs of the distribution of raw aterial intensity (a-bands) and velocity (b-strips ) along the cleaning axis at two different values of the inctial density of raw aterials v (initial velocity and unchanged ) at different values of the coefficient S / S t is listed below. As a result of the pile ipact of the analysis, there is a sharp decline and increase in the density and speed of the raw aterial flow across secfors. Graphs of distribution of raw aterials intensity ( a-lines) and a velocity) (b-strips) 1.1,.,. 5, 4. 7, 5. 9 ρ(kg/ ) Figure-. Graphs of distribution by raw clearance of raw aterials density (a- curves) and velocity (b- curves) 7 kg/ 1.,.,. 5, 4. 7, 5.9 at different values of paraeter 1 Copyright to IJARSET

5 ISSN: 5-8 Vol. 5, Issue 1, Deceber 18 Initial density of purging can reduce the axiu valves in the graphs diinution. The use of the density and frequency distribution in the treatent zone is highly effective. In its sall valves there is a high level of intensity changes in the sectoral boundaries and frequencies. The increase in this coefficient reduces the coefficient of friction and as a result ay lead to the discrepancy between the sector s distances. In order to investigate the process of separating the dirt particles fro the raw aterial, we use the forula ( ) / in forula (1) which evaluates the efficacy of the effluent and the proportionality coefficients. Are considered to the sae as the following paraeter (1 ). In figures 4 and 5 there are 4 graphs for cleaning outcoes in different values of and at 4 where the cleaning efficiency is 4. The results show a sharp reduction in the efficacy of the analysis of each of the sexes and the sharp reduction of the raw aterial density due to the ipact of the piles and the decreasing effectiveness of the nuber of sections. Taking into account the rule of thorough coefficient of paraeter, given the law the effectiveness of the chosen principle corresponds to the axiu in accordance with the axiu values of coefficient Figure-4. Graphs of cleavage distribution by different values ( ) / of the paraeter when the paraeter when the efficiency of cleaning of the dewaterant fro coposition of cotton 55 kg/ raw aterial 1. 1,.,., 4. 4, 5. 5, 6. 6, 7. 7, 8.8, 9. 9 Figure-5. Drip irrigation effectiveness in the raw cotton raw aterials in the values of paraeters ( ) for distribution paraeters at 7 kg different values of paraeters. 1. 1, / / Copyright to IJARSET

6 ISSN: 5-8 Vol. 5, Issue 1, Deceber 18.,., 4. 4, 5. 5, 6. 6, 7. 7, 8. 8, ε 9.9 In figure 6 the coefficient of the efficiency cannot be changed and its value is 1 1 ( x) dx and the graphs of change of the clearance arrey at its various values and are given. As the coefficient of the graphs analysis increases the above entioned laws can also be entioned laws can also be observed in the change of efficiency. 55 kg 7 kg / / Figure-6. Drip irrigation effectiveness in the raw cotton raw aterials in the values of paraeters ( ) for distribution paraeters at 7 kg different values of paraeters. / / The full effectiveness of the cleaning zone can be deterined by this integral: n1 ( ) d n 1 1 The efficiency of the cleaning zone the nueral values of the variations in the density and useful coefficients of the raw aterial in the table are given in the table. The results of the analysis of the results show that the efficacy c of the treatent zone is dependent on the high level of paraeter and the initial density. The table breaks zone changes in the initial density and the beneficial coefficient in different values. 55 kg/ 4(1 ) Copyright to IJARSET

7 ISSN: 5-8 Vol. 5, Issue 1, Deceber 18 7 kg/ 4(1 ) CONCLUSION It has been established that the pressure, densities and flow rates along the cleaning arc as a result of haer spikes vary in steps, with a decrease in pressure and density and an increase in the flow velocity along this arc. This indicates the process of significant loosening of the flow during the transition fro the cleaning section to the second one and there is a slight change in their values in other cleaning sections. It is proposed to use the odel of A.G.Sevostyanov to describe the process of cleaning raw cotton fro weed ipurities. Left equations for deterining the aount of selected ipurities in the areas between the pegs, and honey sections of the cleaning zones. It has been established that the greatest aount of ipurities released is released in the areas between the first and third pegs, then there is a slight drop in the areas between the next pegs. This circustance should be considered when choosing the length of the zones of contact of the raw aterial with a esh surface. REFERENCES 1. Sevostyanov AG (198) Methods and eans of studying the echanicaland technological processes of the textile industry. Moscow «Lightindustry». Recoended by the Departent of Technology of PriaryProcessing of Natural Fibers of the Naangan Engineering andtechnology Institute.. Lebedev DA (9) A nonlinear odel of the effect on a particulatparticle during fiber cleaning. Magazine Technology of the textile industry 5:.. (8) Handbook of priary cotton processing. Edited by Oonov F.B. (in the Uzbek language). Asia. 4. (197) Miroshnichenko G.I. Basics of designing achines for priarycotton processing. M Mechanical Engineering pp Copyright to IJARSET