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Shenzhen waste paper recycling, Shenzhen paper recycling, Shenzhen waste paper crushing recycling business,

In daily life, waste paper is generated every day. If these waste papers are not collected and used, they will cause pollution to the environment. If they are collected for comprehensive utilization, they can be turned into waste and become a useful resource.

In order to make full use of waste paper resources and prevent pollution to the environment, in recent years, countries around the world have attached great importance to the comprehensive use of waste paper and have explored many ways to comprehensively use waste paper.

1 Production of phenolic resin

Prince Riben Paper Co., Ltd. has successfully developed a new technology for dissolving waste paper in phenol to produce phenolic resins. Because phenol is combined with low molecular weight cellulose and hemicellulose, the strength of the phenolic resin produced is higher than that of products made with phenol and acetaldehyde as raw materials, and the heat distortion temperature is 10 ° C higher than that of conventional phenolic resin.

In production, old newspapers and office waste paper can be used as raw materials, but the cost of using office waste paper as raw materials is low, which is only half that of old newspapers.

2 Making household appliances

In Singapore and other places, people use waste paper materials such as old newspapers and old books to roll them into round slender sticks, wrapped with plastic paper, hand-woven carpets, cushions, bags, cat nests, curtains, and even household appliances such as coffee tables and beds . During the production, different patterns can be rolled up according to the different shapes of various household appliances, and then decorated with colors, so that the produced household appliances are practical and beautiful.

3 Manufacture of recycled paper

This is the most widespread way to use waste paper. It can be used not only to make recycled packaging paper, but also to make recycled newsprint. A French paper company has successfully developed a new process for newsprint recycling. This new process includes deinking, purification of paper fibers, and the removal of ink and impurities, followed by four processes in papermaking. The specific process is: according to the type of ink, deinking technology is selected; the paper fiber and soap-based deinking agent are sent to a deinking chamber composed of two chambers, so that the ink and impurities float to the surface with the foam, and are sucked away by the suction device ; The purified fiber pulp is concentrated to 15%, and the paper fibers are swelled by heating, and can also be bleached to give the gloss of recycled paper. Finally, the high-concentration pulp is sent to papermaking equipment, and can be made with The new paper has the same whiteness

4 Pressed glued cardboard

Former Czechoslovak scientific and technological personnel, at a temperature of 80 ° C, used five layers of waste paper and synthetic resin to press together to form a glued cardboard, which has more than twice the compressive strength of ordinary cardboard. Packaging boxes made of this glued cardboard can use nails and screws, and can be equipped with bearing rollers, which are almost as strong as those made of plywood.

5 processed into cattle and sheep feed

Countries such as the United States, the United Kingdom, and Australia have developed good methods for processing waste paper into cattle and sheep feed. The method of animal nutritionist Larry Berg of the University of Erie in the United States is to chop up the old newspaper, add water and 2% hydrochloric acid, and then boil for 2 hours to make cellulose decompose and break under the action of high temperature and acid. Then add it to feed to feed cattle and sheep, and the proportion is 20% ~ 40%. Oil filter www.gn6688.com Cattle and sheep farms in the United Kingdom. After slightly treating the waste paper, cut it into slender strips or knead it into small paper balls, and then add a small amount of nutrients to feed the cattle. Sheep, cattle and sheep can gain 1/3 of the weight compared to ordinary feed. Australian scientists crushed the waste paper and mixed it with appropriate amounts of linseed oil and honey to make pellet feed for cattle and sheep.

6 Moulded Asphalt Roof Panel

The scientific and technical personnel of the Central Institute of Construction in India use waste paper, cotton yarn ends, coconut fiber and asphalt as raw materials to mold the new construction material asphalt corrugated board. Covering a house with this asphalt corrugated board has good heat insulation performance, impermeability, light weight, low cost, and also has the characteristics of not being easy to burn and corrosion resistance.

7 Recovery of methane

Experts from Lundau University, Sweden, pulped waste paper, and then added an aqueous solution of anaerobic microorganisms that can decompose organic matter to the slurry; then, it was transferred to a reaction furnace, where cellulose, methanol, and carbohydrates in the waste paper slurry It is converted into methane; the wood extracts are removed by enzymes to obtain fuel methane.

Our company specializes in the waste paper crushing and recycling business in Shenzhen