At present, there is no national standard for domestic air compressor drying equipment manufacturing industry
Chemicals, petrochemicals, pharmaceuticals, foods and other industries, due to the elimination of moisture in the production process of certain products, the chemical air compressor drying equipment came into being. Prior to the reform and opening up, air compressor drying equipment was mainly imported from Japan, Europe and the United States. In 1980, the first domestic air compressor drying equipment manufacturing enterprise with collective ownership started its business in the Yangtze River Delta region, where China's first township chemical company was born.
It is said that in the Yangtze River Delta where the economy is relatively developed, after more than 20 years of development, there should be several large-scale enterprises in the field of air compressor drying equipment manufacturing. However, according to the reporter’s understanding, although the total number of air compressors drying equipment manufacturing companies in Changzhou City is as high as 300, the number of companies with annual sales revenue of more than 100 million yuan is not. Only one older enterprise is In 2002, it had achieved unprecedented sales revenue of 100 million yuan, and only once before and after. Other better companies sell 50 million to 60 million yuan a year, and the average company is about 20 million yuan. The local private chemical companies that developed during the same period did not have dozens of sales revenues of several billion yuan a year. Why is the difference so obvious? A general manager of a compressor drying company from Changzhou, who is a graduate of engineering, told reporters that the characteristics of the air compressor drying industry in the Yangtze River Delta are scattered and the three are too small. The key is that the industry's entry threshold is too low, 500,000 yuan plus 10 acres will be able to build an air compressor drying plant. Some registered companies actually have no official site. After a business is tied up by means of relations and means, they immediately take a grassroots team, attracting metalworkers and welders, and renting factories to start producing air compressor dryers. . This practice is not uncommon in Changzhou. This phenomenon is called scattered. The so-called chaos refers to the fact that some enterprises with low technology are able to keep their mouths shut, and the equipment manufactured in a similar manner is of poor quality, but the price is low and it can be sold. Small needless to say. According to him, it is entirely possible that the air compressor drying equipment industry in Changzhou will compete to form seven or eight large-scale enterprises.
In Changzhou for more than 20 years, it has not been able to produce a large-scale air compressor drying equipment company. Is it because the market at home and abroad is not so big? Industry insiders dismiss this view. The use of air compressor drying equipment is very versatile. Chemicals, petrochemicals, pharmaceuticals, food and other industries do not say that the electronics, military, light industry, agricultural products processing, laboratories of universities and research institutes have a large demand, only However, the technical content of domestic equipment is not high, can not sell a good price line, coupled with the vicious competition among enterprises, to a large extent offset the profits of the industry. A boss reluctantly said that last year's steel prices, air compressor drying equipment should be properly increased prices, but some small factories from the chaos, you 100,000 yuan can create this air compressor dryer, he said 60,000 yuan on the line, After getting a living, he should have used a 3 cm thick steel plate. However, he used 2 cm. The life of the equipment will certainly not be long, but the user does not understand the technical requirements in this area. The industry believes that to strengthen compressor drying equipment companies, we must improve the industry access threshold, and the establishment of national standards is an important part.
It is reported that at present, there is no national standard for the domestic air compressor drying equipment manufacturing industry, that is, the industry standard only involves a small number of products. The quality of many products is only the customer's final say, and the industry calls the "guest standard". An independent equipment manufacturing industry, there is no national standard, the lack of industry standards, it is impossible to objectively test the quality of air compressor drying equipment. Moreover, at present, there is only one national trade association that is not enough. As soon as possible, regional and targeted association organizations should be established, such as the establishment of the Changzhou Air Compressor Drying Equipment Association, which will help regulate the development of the industry. In the Taiwan region of China, once an industry reaches more than seven companies, it must establish regional industry associations. In Wenzhou, Zhejiang, a lighter association was also established to rapidly develop the industry and formed several large-scale enterprises with international competitiveness.
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There are three types of conical fluidized bed in China: one is the thick phase overflow effluent. In recent years, more domestic use in fluidized granulation; the other is the spouted bed drying, which is discharged from the bed top The product is collected in a cyclone separator or operated intermittently at the bottom of the bed. This structure is simpler than the fluidized bed structure, the equipment is small, the output is large, the drying strength is high, the bed is isothermal, and local overheating does not occur. In the past, it was only applicable to large particle materials (polyvinyl chloride). In recent years, it has been developed to be applicable to the drying of fine-grained materials. Currently used in plastics, cereals, pharmaceuticals and other sectors. However, due to high power consumption, use is limited.
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