China Drying Newsletter On November 30th, a factory in the Guangwu Circular Economy Industrial Park in Jieshou City, workers on the assembly line were busy with work, shoveling materials, making shoes, squaring, etc. After the process, it turned into a pair of strange new rain boots. The chairman of the shoe factory, Xuan Yong, together with other people engaged in the processing of recycled plastics, stepped out of a new world from the small towns in northwest Yunnan.
Raw plastic granules belong to the category of plastic granules. Recycled plastics are plastics that have been used to recover new materials or used plastics from ramming machines and then cut into pellets by a pelletizer. Particles.
Nowadays, after decades of development, Jieshou Guangwu Recycled Plastics has become an important industrial cluster with reasonable division of labor and scientific supporting industries. It is one of the largest recycled plastics distribution centers in the country. At present, there are more than 30,000 employees and the annual purchase volume is 870,000 tons. It mainly produces five major categories of recycled plastic granules such as PVC and PE, and various types of production and daily necessities.
Waste plastics and plastic resources are called by modern economists as “the second mineral deposit of mankind†and “the treasure in the cityâ€. The use of recycled plastic granulation can ease the contradiction between the supply and demand of plastic raw materials, and can also greatly save the foreign exchange of imported crude oil. In addition, due to the fact that most plastics are not degradable, they accumulate over time, causing severe white pollution and destroying the ecological environment of the earth. The disposal of waste is not only tricky, but also has a huge impact on the environment. Therefore, as a developing country, China is actively developing the recycling industry of used plastics. It is indeed a major event that benefits the country, the people, and the power in the present day.
Of plastic granules, plastic waste is first to be collected; then, categorize, and classification including color variety; after that to the chipper, pulverization, cleaning; washing after pulverization, into an extruder for extrusion, Extruded into strips, then cut into granules; granules cut into, is to do raw materials for plastic products.
After the processing of the plastic reclaimed pelletizer equipment, the previously unattractive waste plastics immediately turned into colorful plastic pellets. These recycled plastic granules still have good comprehensive material properties, and can meet the technical requirements of blown film, drawing, drawing, casting, extrusion, etc., and are widely used in the production of plastic products. After further processing by plastics manufacturers, they have become common plastic pots, folders, plastic films, industrial and agricultural machinery parts and so on. These products are widely used and become the darling of the market.
A duster
Dust remover is a device that separates dust from flue gas. It is called Dust Collector or dust removal equipment. The performance of the dust collector is expressed by the amount of gas that can be treated, the resistance loss of the gas through the dust collector and the efficiency of the dust removal. At the same time, the price of dust collector, the cost of operation and maintenance, the length of service life and the difficulty of operation management are also important factors to consider its performance. Dust catcher is a common facility in boilers and industrial production.
A brief introduction of dust remover
Dust remover is a device that separates dust from flue gas. It is called dust collector or dust removal equipment. The performance of the dust collector is expressed by the amount of gas that can be treated, the resistance loss of the gas through the dust collector and the efficiency of the dust removal. At the same time, the price of dust collector, the cost of operation and maintenance, the length of service life and the difficulty of operation management are also important factors to consider its performance. Dust catcher is a common facility in boilers and industrial production.
purpose
The dust cover is set up in all the places where the ash is rised, and the dust gas is transported to the dust removal device through the pipeline gas path. After the gas solid separation is carried out, the dust is collected in the dust removal device, and the clean gas is introduced into the general pipe or a set of equipment directly discharged into the atmosphere, that is, the dust removal system, and the dust collector is in the system. The important part of the group. From the angle of ventilation and dust removal, dust is a small particle that can be found in the air for a long time. It is a dispersion system called aerosol, in which air is dispersed medium and solid particles are dispersed phase. A dust catcher is a device that separates this solid particle from the aerosol.
classification
According to the principle of action, duster can be divided into the following:
1. Dry type mechanical dust remover mainly refers to the dust removal equipment, such as settling chamber, inert dust collector, Cyclone Dust Collector and so on, which are designed with dust inertia action and gravity action. It is mainly used for the separation or concentration of high concentration coarse particle size dust.
2. Wet dust remover relies on water power to separate and capture dust particles, such as spray tower, scrubber, impact dust collector and Venturi Tube , etc., in the process of processing production, high concentration and large air volume of dust gases are used more. The separation efficiency of the thicker hydrophilic dust is higher than that of the dry type mechanical dust collector.
3, granular bed dust remover uses different particle size material accumulation layer as filter material to block the equipment for filtering the dust contained in the gas solution. It is mainly used for dust discharge points in the production process of building materials, metallurgy and so on. It often filters dust containing high concentration, coarse particles and high temperature.
4. The Bag Filter is a dedusting device that uses fiber fabric or filling layer as the filter medium. It has wide range of use, form, dust size and efficiency. It is mainly used in the place of collecting fine dust, that is, in the exhaust dust collection system and in the air inlet system. In recent years, because of the continuous development of new type of filter materials, the development of fiber filtering technology has also accelerated, new products continue to appear, and the application field is widening.
5. The Electrostatic Precipitator is a dust collector that introduces the dust air into the electrostatic field. Under the action of the high voltage electric field, the gas is ionized and produces electrons and positive ions. They move to the positive and negative poles respectively. When the dust particles flow through the working electric field, they are charged at a certain velocity to the opposite of their negative charge. The plates are removed and settled there, thus being removed from the airstream and collected in the electrostatic precipitator. The dust collector has the advantages of high dust removal efficiency, low resistance, and convenient maintenance and management. It has the same effect as bag filter in collecting fine dust particles.
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Botou Youjian Environmental Protection Equipment Co. LTD. , http://www.btdustmachine.com