Scrap cleaning and recycling Types of scraps
In the process of cleaning cotton, ginning, lint, etc., a certain amount of scraps are discharged. With the continuous improvement of raw material and product cleaning processes and the widespread application of air conveying, the sources and varieties of scraps are increasing. Various scraps contain useful fibers and other substances of different compositions. They have a wide range of uses in industry and have high economic value. Therefore, cleaning and recycling scraps has become an important link in the production process of ginning plants, and the cleaning and recycling technology and equipment are also becoming increasingly mature.
1. Types of scraps
1. Scraps discharged when cleaning cotton wool
The scraps discharged during cleaning cotton wool mainly include stiff flaps, small flower heads, infertile children, dust and fluff, etc. Impurities, these effluents are cleaned and recycled. The stiff petals and floret heads can be rolled out into longer fibers for use in spinning and wadding. Infertile children can be extracted from cotton linters, and cotton seeds can be extracted for oil.
2. The scraps discharged during the ginning process
The scraps discharged during the ginning process include neps, cotton cords, noils, infertile seeds, fiber-laden scraps, broken husks, and small flats. seeds and other impurities. Among them, infertility accounts for 70% to 80% of the total discharge. The cleaned and extracted fibers can become lint (usually reduced by 1 to 2 grades and a length, but it is still a good raw material for spinning and wadding). Cotton linters can be extracted from infertile fetuses after crushing them.
3. The scraps discharged during the stripping process
The scraps discharged from cotton during the cleaning and stripping process include lint, flying velvet, broken shells, fibrous scraps, small cottonseeds, Cotton kernels, cotton kernel scraps and other impurities, and the linters that are cleaned and recycled, can generally be made into high-quality lint, and cotton seeds and cotton kernels can be pressed for oil.
4. The scraps recovered in the dust tower
The scraps (mainly dust and fluff, etc.) recovered through various dust filtering devices are generally called dust tower lint. Due to different sources, their fiber length and ash content are different. Generally speaking, the dust velvet recycled in the ginning workshop has longer fibers and contains more ash; the dust velvet recycled in the stripping workshop has shorter fibers, more ash content and more ash. Both types of dust velvet can be made into different grades of velvet through cleaning and recycling.
In addition to the above four types, there are also fly lint and fibrous impurities cleaned in workshops, factories, ditches, etc., which can be cleaned and recycled into high-quality lining. In the process of cleaning cotton, ginning, lint, etc., a certain amount of scraps are discharged. With the continuous improvement of raw material and product cleaning processes and the widespread application of air conveying, the sources and varieties of scraps are increasing. Various scraps contain useful fibers and other substances of different compositions. They have a wide range of uses in industry and have high economic value. Therefore, cleaning and recycling scraps has become an important link in the production process of ginning plants, and the cleaning and recycling technology and equipment are also becoming increasingly mature.
1. Types of scraps
1. Scraps discharged when cleaning cotton wool
The scraps discharged during cleaning cotton wool mainly include stiff flaps, small flower heads, infertile children, dust and fluff, etc. Impurities, these effluents are cleaned and recycled. The stiff petals and floret heads can be rolled out into longer fibers for use in spinning and wadding. Infertile children can be extracted from cotton linters, and cotton seeds can be extracted for oil.
2. The scraps discharged during the ginning process
The scraps discharged during the ginning process include neps, cotton cords, noils, infertile seeds, fiber-laden scraps, broken husks, and small flats. seeds and other impurities. Among them, infertility accounts for 70% to 80% of the total discharge. The cleaned and extracted fibers can become lint (usually reduced by 1 to 2 grades and a length, but it is still a good raw material for spinning and wadding). Cotton linters can be extracted from infertile fetuses after crushing them.
3. The scraps discharged during the stripping process
The scraps discharged from cotton during the cleaning and stripping process include lint, flying velvet, broken shells, fibrous scraps, small cottonseeds, Cotton kernels, cotton kernel scraps and other impurities, and the linters that are cleaned and recycled, can generally be made into high-quality lint, and cotton seeds and cotton kernels can be pressed for oil.
4. The scraps recovered in the dust tower
The scraps (mainly dust and fluff, etc.) recovered through various dust filtering devices are generally called dust tower lint. Due to different sources, their fiber length and ash content are different. Generally speaking, the dust velvet recycled in the ginning workshop has longer fibers and contains more ash; the dust velvet recycled in the stripping workshop has shorter fibers, more ash content and more ash. Both types of dust velvet can be made into different grades of velvet through cleaning and recycling.
In addition to the above four types, there are also fly lint and fibrous impurities cleaned in workshops, factories, ditches, etc., which can be cleaned and recycled into high-quality lining.
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