Posts Tagged ‘ plastic recycling lines ’

Jun
02

A process for recycling or decomposing waste plastic where such plastic recycling line is decomposed in a diluent such as hot oil through actions involvingfree radical precursor, such as polyvinyl chloride or polyurethane, is achievedat low temperature. The thermal decomposition (or pyrolysis) reaction is forabout 1 hour at 375° C., and useable products, such as distillate, coke, and oilare recovered. Additionally the diluent may be recycled within the process.

When plastic is Waste plastic recycling , it goes through a process of using scrap or waste plastic and then reprocessing the plastic into useful products, sometimes even into something that does not resemble anything its original form. Every year, an estimated 13 billion plastic bottles alone are thrown away but only 2.7 billion of them are recycled. However, if you recycle one plastic bottle you are actually conserving enough energy to light a 60W light bulb for six hours, reducing the world’s dependency on oil and decreasing CO2 emissions caused by use of fossil fuels.

The present invention relates generally to processes for low temperature thermal decomposition of waste plastics. Specifically, the invention focuses upon achieving decomposition of waste plastics at a lower temperature than was previously possible. In particular municipal, health and industrial waste plastics are processed such as (but not limited to) polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), polyurethane (PU), and polyvinyl chloride (PVC).Plastic is most often used to make bottles for beverages, containers for food, plastic grocery bags, furniture and many other common items we all use every day. Plastic waste takes about 11 percent of our household waste and 40 percent of that waste is plastic bottles. plastic recycling line can be used in many different ways, some of them less than obvious. Besides just using recycled plastic to make new plastic items such as bottles and garden furniture, recycled plastic is also used to make fleece clothing and fiber filling for sleeping bags.

Waste plastics, that is synthetic polymer-containing substances, pose an environmental issue because of the problems associated with disposal: a large volume of non-biodegradable material. Because of the limits on landfill capacity, future recycling or decomposition is a necessity. Direct recycling back to the manufacture is not always feasible because such waste plastic is often mixed with respect to polymer type and separation is uneconomical. Economical considerations for processing waste plastic often require the use of the unseparated mixed waste plastic. plastic recycling machines originated with the manufacture of synthetic thermoplastics. Rejected parts, trim, and flash from operations represented valuable materials that were ground and recycled with virgin material. This process was potentially repeated a number of times provided the percentage of regrinds remained low. As long as the plastic scrap generated by the industry was clean and uncontaminated with other plastics, reprocessing within the industry continued to expand, provided the price of virgin plastic remained high. After 1960 with a decrease in prices, profit margins for plastic scrap were squeezed, and disposal instead of reprocessing often occurred.

Plastic Classification

Author : admin
Dec
25

There are about 50 different groups of plastics, with hundreds of different varieties. All types of plastic are recyclable with plastic recycling machines.

To make sorting and thus recycling easier, the American Society of Plastics Industry developed a standard marking code to help consumers identify and sort the main types of plastic.

These types and their most common uses are:

1.PET - Polyethylene terephthalate - Fizzy drink bottles and oven-ready meal trays, peanut butter jars . PET types can be recycled by PET bottle washing line.

2.HDPE - High-density polyethylene - Bottles for milk and washing-up liquids, motor oil HDPE types can be recycled by PE granulating line.

3.PVC - Polyvinyl chloride - Food trays, fast food service items and shampoo, cooking oil bottles

4.LDPE - Low density polyethylene - Grocery bags and can liners.

5.PP - Polypropylene - Margarine tubs, microwaveable meal trays, bottle caps, yogurt containers, straws. PP types can be recycled by PP granulating recycling line.

6.PS - Polystyrene - foam meat or fish trays, hamburger boxes and egg cartons, vending cups, plastic cutlery, protective packaging for electronic goods and toys (packing peanuts).

7.OTHER - Any other plastics that do not fall into any of the above categories. - An example is melamine, which is often used in plastic plates and cups.