Abstract
This article shows the changes in fiber waste from cotton processing and how it is gradual. The dust emitted in the dry-cleaning shop is only 5-7 mg/m3 of dust, less than the air in the building where the drying machines are located. This is due to the fact that high moisture is absorbed into the dryers, which prevents the separation of fine dust from the mass. The large dispersed dust, even at high humidity, was separated and was unable to disperse in the building. In the drying units, dust that comes with an atmospheric drying agent causes trouble. This dust, even with a rough dispersion, sits in the dryer along with the gas flow to the roof of the building and the ground near the drying shop. The amount of dust released is 500-600 kg/day. In the compartment, the dust emits from the air pneumatic system, which is an indispensable dust in the air drying shop, as well as the dust generated by cleaning machines. This is a powdery fiber, which contains less mineral fractions. The small fractions are composed of mostly dirty particles. Powdered air is also isolated from aspirate systems of gin suppliers, which absorb absorbed air or polluted air from pollutants. Such suction system can be included in the aspiration of the cotton distribution screw. It is established that only one cotton gin industry produces 150-350 tons of fiber per year, industry-wide waste is 5-6 tons, and 70-90% of organic waste is non-toxic. This will serve as a feedstock for the use of animal feed in the agricultural sector. Researches have been carried out to identify the amount of emissions from the ginneries at the Karasu, Mustaqillik and Ginnery factories in the Tashkent region and the Metan cotton gin enterprises in Samarkand region.
Highlights
At all stages of the initial cotton processing, a large amount of dust is emitted, which can pollute the production facilities and the ambient air, which can worsen the working conditions of workers and employees and cause them to develop occupational diseases, including silicosis
High-humidity low-grade cotton can be subjected to a large amount of dust leakage after drying
This is due to the high moisture content of the cotton into the dryers, which prevents the separation of fine dust from the mass
Summary
At all stages of the initial cotton processing, a large amount of dust is emitted, which can pollute the production facilities and the ambient air, which can worsen the working conditions of workers and employees and cause them to develop occupational diseases, including silicosis. The issue of dehydration of ginneries is of paramount importance due to increased pollution of cotton harvested cars. With the increasingly widespread introduction of machine-picking, the cotton ginning industry needs immediate action to receive, store and process the cotton, and to improve the process of drying, purifying and refining, as well as improving the dust and air purification systems. In the technological processes of the ginneries, air transport is transmitted to the garment drying and cleaning shop. High-humidity low-grade cotton can be subjected to a large amount of dust leakage after drying. The dust emanating from the cotton pneumatic system is predominant with fine dispersion particles, mainly loose particles [1]
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