IMPROVEMENT OF THE REGENERATOR USED IN CLEANING COTTON FROM IMPURITIES

Аннотация

The article presents the results of research work on the development of a new cotton regenerator for the extraction of cotton volatiles from waste cleaners. The main distinguishing features of the design and technological process of the new cotton regenerator for the extraction of cotton volatiles from waste cleaners are described. KEY WORDS: cotton regenerator, breathable, bar drum, axial, cleaning ratio, screw. I. INTRODUCTION It is known that the main disadvantages of a serial regenerator are associated with the designs of the pneumatic feeder and working bodies. At the same time, the use of two capture drums - the main one and the regeneration one - is sufficient and acceptable for the developed regenerator. The serrated drums of the RX regenerators have a diameter of 480 mm, while the modern grasping saw cylinders are made from over-cut genie saws with a diameter of 300 mm. Accordingly, with a decrease in the diameter of the cylinder, the arc length of the grate arrangement decreases, and while maintaining the optimal gaps between them equal to 40 mm, their number decreases from 10 to 6 pieces. at the main drum and from 15 to 8 pcs. have regenerative. Due to a decrease in the number of grates, a slight decrease in the cleaning effects will occur, which will be compensated by an increase in the frequency of cleaning the regenerated fumes from 3-4 times to 6, 8 times. Taking into account the revealed shortcomings of the semi-cylindrical pneumatic feeder in the developed regenerator, it is advisable to form a channel from 430 “JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN UZBEKISTAN” JURNALI VOLUME 2, ISSUE 11, 2024. NOVEMBER ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869 the inlet to the outlet inside the housing above the stripping drum and on the side of the main gripping drum, which should be located at the opposite sidewalls. Despite the increase in comparison with the RX regenerator by almost 2 times the distance between the inlet and outlet openings and a decrease in the channel cross-sectional area in comparison with the semi-cylindrical feeder, a part of the small trash impurities and free fiber in the waste will transit without entering the main gripping saw cylinder. To prevent such a transit in the channel, it is advisable to arrange an air-permeable bar drum along its longitudinal axis with the bars arranged along a helical line. When rotating, such a drum will swirl the air flow around itself with an axial displacement in the direction from the inlet to the outlet. Due to this, the waste moving with the air flow will repeatedly pounce on the surface of the main gripping saw cylinder. In this case, the frequency of supply of waste and regenerated volatiles can be adjusted by the rotation speed of the bar drum. The developed scheme of the regenerator is shown in Figure 1. The following main working bodies are installed in the body of the regenerator: bar drum 1, main 2 and regeneration 3 saw cylinders, working in combination with fixing 4, 5 and cleaning 6, 7 grates, removing slatted drum 8 and scorching auger 9, to the discharge opening of which a tube 10 with a valve is connected. The screw 9 and the tube 10 are borrowed from the serial RX regenerator. Figure 1. Schematic diagram of a new raw cotton regenerator. 431 “JOURNAL OF SCIENCE-INNOVATIVE RESEARCH IN UZBEKISTAN” JURNALI VOLUME 2, ISSUE 11, 2024. NOVEMBER ResearchBib Impact Factor: 9.654/2024 ISSN 2992-8869 The upper cover 11, front 12 and rear 13 walls adjoin the sides of the regenerator body. The front wall 12 and the top cover 11 have inlet 14 and outlet 15 openings located at opposite sides. To them are connected, respectively, inlet 16 and outlet 17 branch pipes. The body also contains the enclosing trays 18, 19, 20 forming the channel, the shield 21, the guide trays 22, 23 and 24, the enclosing casing 25 and the trough 26. View from above (reduced) 1-bar loosening drum, 2, 3-main and regeneration saw cylinders, 4, 5-fixing grates, 6,7-cleaning grates, 8-slat removing drum, 9- scraper auger, 10-tube with valves, 11- upper cover, 12, 13-front and back wall, 14, 15-inlet and outlet, 16, 17-inlet and outlet, 18,19,20-guard trays, 21-shield, 22, 23, 24- guide trays , 25-guarding casing, 26-trough. The work of the new regenerator of raw cotton from the waste of cleaning equipment will be carried out as follows. The air vacuum created by the fan through the condenser or separator through the pipeline (not shown in the figure), connected to the outlet pipe 17, spreads through the channel formed by the enclosing trays 18, 19 and 20, as well as parts of the upper cover 11 and the front wall 12, spreads into the body of the regenerator and in a pipe connected to the inlet pipe 16 (not shown in the figure), into the open end of which the outside air and the waste transported by it, as in the RX regenerators, are sucked. From the branch pipe 16, the air and the waste transported by it through the inlet 14 enter the channel formed by the tr