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Your current location: Home Page Chinese style News Center Chinese style Industry dynamics Application of electromagnetic induction technology in plastic machinery

Application of electromagnetic induction technology in plastic machinery

Author: Zhongshan Shengchi Electronic Technology Co., Ltd.: industry dynamic release: 2020-05-14 02:07:33 reading: (417)
Abstract: 1. at present, the government advocates universal electricity saving and joint action. And China's power shortage provinces, according to the Electricity Regulatory Commission released the "power supply and demand situation analysis and recommendations" revealed, has reached 18. There are more than 140 thousand power cuts in all parts of the country, and the total power limit is 1 billion 900 million kilowatt hours. The shortage of power has seriously restricted the economic development of our country. Therefore, the government energetically supports energy conservation and environmental protection industries. According to incomplete statistics, there are about 1 million 600 thousand sets of plastic production machinery in the country, increasing at an annual rate of 15%. The capacity of the heating part is 20 million kilowatts, and the daily electricity consumption is about 20 million kilowatt x 0.5 x 20 hours =2 billion kwh, (0.5 for machine heating and on-off ratio, 20 for machine day production), 300 working days per machine.
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1. at present, the government advocates universal electricity saving and joint action. And China's power shortage provinces, according to the Electricity Regulatory Commission released the "power supply and demand situation analysis and recommendations" revealed, has reached 18. There are more than 140 thousand power cuts in all parts of the country, and the total power limit is 1 billion 900 million kilowatt hours. The shortage of power has seriously restricted the economic development of our country. Therefore, the government energetically supports energy conservation and environmental protection industries. According to incomplete statistics, there are about 1 million 600 thousand sets of plastic production machinery in the country, increasing at an annual rate of 15%. The capacity of the heating part is 20 million kilowatts, and the daily electricity consumption is about 20 million kilowatts, 0.5 x 20 hours =2 billion kwh. (0.5 for machine heating and on-off ratio, 20 for machine day production hours), according to 300 working days per machine per year, the annual consumption of plastic processing machinery in China is 60 billion kwh. If all machines are equipped with electromagnetic heating devices, then the national electricity saving will be around 18 billion kwh, which is 2 billion 300 million kwh higher than that of Gezhouba Dam in the whole year. It has a very positive role and significance in alleviating state power shortage, reducing state investment and reducing production costs.

2. at present, the competition in the plastics industry is very fierce. How to reduce product costs and improve the competitiveness of products is a core issue facing every enterprise. Electricity accounts for a large proportion of the cost of the products in the plastic industry. The use of electromagnetic heating technology can effectively reduce the production cost and enhance the competitiveness of enterprises.

Present situation and existing problems of domestic plastics industry

A. products apply to the industry:

Plastic products, plastic film, plastic pelletizing, wire drawing injection molding, pipe and other production enterprises. At present, the production equipment of these enterprises is heating the barrel and die by using electric heating ring, so that the plastic raw materials are melted and plasticized, then injected, stretched and extruded into products.

B. has problems:

(1) the heat loss is large: the heating method adopted by the existing enterprises is made up of resistance wires, the inside and outside surfaces of the loops are heated, and the heat transfer from the inner part (close to the barrel part) to the material cylinder, and the heat outside is mostly dissipated into the air, resulting in the loss and waste of electric energy.

(2) environmental temperature rise: due to the heat loss, the ambient temperature is rising, especially in summer, it has a great impact on the production environment. The working temperature of the field is more than 45 degrees. Some enterprises have to use air conditioning to lower the temperature, which causes the two waste of energy.

(3) the service life is short and the maintenance is large. As the resistance wire is heating, the heating temperature is as high as 300 degrees Celsius, and the resistance wire burns easily because of the high temperature aging. The service life of the commonly used electric heating ring is about half a year, so the workload of maintenance is relatively large.

2. advantages and characteristics of electromagnetic induction heater

A. energy saving effect is good.

Compared with the original resistance wire heating ring, the power saving effect is over 30%, and the power saving effect is changed compared with different raw materials and different products. But in the products currently used, the power saving efficiency can reach up to 75%.

B. environmental protection effect is good.

It can significantly reduce the ambient temperature.

C. long service life

The continuous operation temperature of the heating ring is only about 100 degrees Celsius, and there is no problem of heating ring replacement. Compared with the original resistance wire heating, the two input is reduced.

D. can increase product yield.

Because the heating efficiency of the product is high, it can significantly reduce the heating up time and increase the output of the product.

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