investors is investment in stainless steel production transferred to the processing of stainless steel scrap recycling. Is facing the state macro-control, to have been banned and eliminated some of the "ground steel and outdated equipment, stainless steel manufacturer, stainless steel scrap recycling transfer promising.
in accordance with wooden stainless steel apparent consumption in 2010 reached 10 million tons, domestic stainless crude steel reached 11 million tons, imports of stainless steel scrap, and imports of "foreign garbage" of metal selected from stainless steel The Scrap resources to maintain the 2005 level.
discussed from a qualitative point of view the production of stainless steel scrap sources, supply sources and the development of use funding sources, to arrive at the largest stainless steel consuming countries, the largest stainless steel producing countries must be the conclusion of one of the largest stainless steel scrap resource countries.
waste regeneration and processing of stainless steel
domestic and foreign consumption and distribution of scrap stainless steel
1. Waste of life:
industrial production process, cut, the stamping down scrap (new material), including direct access to tubes, rods, board, a small number of. The urban landscape works mainly stainless steel welded pipe, the car industry is car exhaust pipe of ferritic stainless steel 409, other sectors such as urban water supply engineering, environmental and petrochemical industry, power industry, there are a lot of scrap stainless steel. Oil, gas, acid pump and container is a big market to produce a large number of scrap stainless steel tanks, pipes, pumps, valves. Steel 18/8 stainless steel.
In addition to the three stainless steel as a source, the domestic stainless steel source of supply of imported stainless steel scrap and broken from the import of used equipment, materials (commonly known as foreign metal garbage) were selected from the stainless steel scrap . Stainless steel production, stainless steel scrap also contains a certain number of products during the manufacturing process, recycling, dust, sludge, pickling mud.
scrap generated in the manufacturer of stainless steel production process. From the information we can get, International Stainless Steel community usually stainless steel crude steel to steel integrated finished product rate of 85% to 88% World steel pipe network editing , considering that part of the production process into a stainless steel scrap in the dust, sludge, pickling mud manufacturers in stainless steel production process recyclable scrap should be at least 10%.
in 2005, actual imports of stainless steel scrap is about 200 000 t, about 100 000 t of stainless steel scrap were selected from crushed material (commonly known as the Yang-metal garbage) from the import of used equipment.
the main source of scrap stainless steel
2. Industrial waste:
in recent years, China's stainless steel production will continue development. The Ninth Five-Year Plan "period built by Baosteel and Japan's Nisshin joint venture in Ningbo new stainless steel plant, a joint venture by Jiangsu Zhangjiagang Pohang, Korea, Zhangjiagang Pohang Stainless Steel plant, ten plants on the steel and the United States Ali Eugenius Luther Bloom's joint venture in Shanghai Shida TISCO stainless steel precision stainless steel plant project is expected to built in 2003; a steel company in Shanghai Baosteel stainless steel projects put into operation in 2004-2005, the Shanghai No. 5 Steel, stainless steel long-profile project, The second phase project of Shanghai Krupp Stainless steel company, etc., will be put into operation in recent years. As a result, China's stainless steel plate, the volume capacity increased from 16% to 60-70%. "15" In the future, China's stainless steel production will reach a level of 2 million tons. However, the domestic market demand will exceed this level. Now, China's per capita stainless steel consumption is only 1.6 kg / year, the world per capita consumption of 3.7 kg / year, the world's advanced countries, per capita consumption of 8.9 kg / year. China's per capita level of consumption of 3 kg, the country's stainless steel consumption is 4.2 million tons. So, regardless of production or consumption of stainless steel in China will grow exponentially, thus stimulating demand for stainless steel scrap and nickel, chromium and other resources, the future of the domestic stainless steel scrap market is very huge. So, from now on must be caused by a high degree of attention on stainless steel scrap and nickel, chromium, and other scarce resources.
recent years, China's stainless steel production and the rapid development, the resulting stainless steel scrap and nickel ore resources less than the problem more and more prominent, and the potential of stainless steel scrap market is huge.
following, we further discussed from the quantitative point of stainless steel scrap resources forecast in the next few years. Discuss this issue, the first encounter is stainless steel more than one generation and sources of supply, more manufacturers and products, which have historically been unable to compile statistics, and no one can refer to the data. "Uncertainty principle" applied to the stainless steel market and the development of research and prediction, is to fully understand the significance of this principle in research and prediction, and thus pay more attention to the precise measurement and scientific predictions. Specifically, is to strengthen the research may lead to "uncertainty", and strengthening the comprehensive study on the basis of attention to the correction of the measurement and prediction results; great importance to developing trend forecasts, put an end to the simple prediction of the results; strengthen the tracking and continuous refinement of the trend forecast.
on the scrap of stainless steel products manufacturing or construction process. This is more difficult to measure or count, according to the approved standards of the industry, stainless steel processing trade, re-export rate is generally about 65%, considering the large piece of scrap recycling about 65%, can produce about 11 percent of the stainless steel scrap.
private enterprises in stainless steel production is developing rapidly. In recent years, to adapt to the multi-level needs of the stainless steel market, a large number of private stainless steel production enterprises came into being. Some medium-sized enterprises, private enterprises in Nantong, Jiangsu and Shanxi Hill & Knowlton, the introduction of foreign advanced smelting equipment, formed an annual output of 10-15 million tons of high quality stainless steel smelting capacity. In Jiangsu and Zhejiang, Guangdong and other areas, some small businesses to use induction furnaces to melt scrap steel as raw materials to produce stainless steel pipe, bar, some stainless steel as raw materials further processing with the production of stainless steel, pipe, wire, wire products. According to incomplete statistics, private enterprise has formed an annual output of 500,000 tons of stainless steel smelting capacity and 700,000 tons per year of stainless steel processing capacity.
of stainless steel production capacity to grow rapidly in the past few years. 2001, made of stainless steel has reached 730,000 tons, an increase of more than 80,000 tons over the same period last year. The domestic market of stainless steel demand is also rising. In 2001, China's stainless steel apparent consumption reached 2.25 million tons, an increase of 30 percent over the previous year, more than 2 million tons of consumption in the United States become the world's largest stainless steel consumption. It is predicted that in 2002, China's stainless steel growth rate of about 8-10% volume growth for the 18-22 50,000 tons. However, the contradiction between supply and demand, along with the continuous incremental expansion of China's stainless steel production capacity, stainless steel scrap for smelting of stainless steel and nickel, chromium and other resources has become increasingly prominent. In China, nickel, chromium resource-poor, mainly rely on imports.
waste classification of stainless steel and stainless steel is closely related to the following main sources:
technical experts should be strengthened stainless steel production, the refined powder products during the manufacturing process, additional environmentally friendly products (dust, water treatment waste pickling sediments). A rough calculation, stainless steel scrap resources from crude steel to cold rolled sheet production process of "three wastes" containing approximately 5% of the amount of crude steel, the two together, in 2010, this part of the stainless steel scrap approximately 80 Million T-
also started using stainless steel production, the powder products during the manufacturing process, environmental protection and additional products (dust, water treatment waste pickling sediments) processing refining, and as a charge put into refining steel production. But overall is still under development, is also a lack of research data, not counted in the above forecasts. Conservative estimates, more than the domestic stainless steel scrap nickel content is also 80 000 t in 2005; will reach more than 150 000 t in 2010, more than the current domestic production. Domestic stainless steel scrap chromium content in more than 270 000 t in 2005; in 2010 will reach 480 000 t. Therefore world pie network information , the emphasis on stainless steel scrap recycling is very important for the healthy development of the domestic stainless steel industry.for the rich characteristics of the stainless steel scrap in China, private enterprises already be aware of. Guangdong Foshan, Qingyuan, Guangdong, Zhejiang Taizhou there have been many crushed materials from the waste equipment (commonly known as foreign garbage) pick scrap workshop.
private enterprise
daily life scrap stainless steel scrap stainless steel appliances (old stuff), China's imports from Japan, South Korea fall into this category can only be melted down to do the charge to use. Kitchen equipment, tableware and other major steel SUS304, 430. The food processing industry mainly manufacturing food processing machinery and container, such as food, beer, beverage, dairy processing equipment, frozen refrigerated equipment, etc. The main steel 304,321,1 cr13 and antibacterial ferritic stainless steel.
five years within a year of stainless steel scrap resources forecast
China is the largest stainless steel consuming countries, the largest stainless steel producing countries, is bound to be one of the largest stainless steel scrap countries. 2010, China's stainless steel scrap to produce the number is expected to surpass the U.S. stainless steel production. Can you attach importance to and the proper recycling and make good use of stainless steel scrap, have great significance for the healthy development of the domestic stainless steel.
in Jiangsu and Zhejiang, Guangdong and other areas, some small businesses an induction furnace to melt scrap steel as raw materials to produce stainless steel pipe, bar, some enterprises to further processing and production of stainless steel with stainless steel as raw material, welding tubes, wires, wire products, there are a number of small processing plants can make use of scrap stainless steel scrap raw plant elbow, screw, screw, chemical accessories, etc..
to solve the problem of shortage of stainless steel scrap and other raw materials, must start from the systems and mechanisms, the establishment of a comprehensive standardized unified collection of stainless steel scrap processing system, to prevent the outflow. Meanwhile, imports of stainless steel raw materials, from the policy development of positive measures, such as to give a reasonable adjustment in tax policy on imports of stainless steel raw materials, support and ensure the normal production of stainless steel production enterprises, a fundamental solution to the stainless steel scrap and the problem of shortage of raw materials. The new characteristics of the
of stainless steel scrap.
stainless steel production, the products during the manufacturing process, recycling, dust, sludge, pickling mud also contains stainless steel scrap. There is no mature technology, but also do not have the statistics, do the following prediction, there is no calculation of this part of the resources.
for the smelting of stainless steel, the general use of "non-oxidation", "oxidation" and "Back blowing oxygen Act smelting process, while using the "return to the oxygen blowing method" of stainless steel scrap smelting, low cost, high efficiency. Today, in some foreign countries, most of smelting stainless steel "to return to feed oxygen blowing method. But total raw materials such smelting method used in stainless steel scrap accounted for about 50-80%, if there is no stainless steel scrap, it becomes a "bricks without straw".
our country for the smelting of stainless steel, nickel, chromium and resource-poor and, of stainless steel applications in the past far from now so extensive, stainless steel The production is also a small self-sufficiency rate of less than 30%, mainly rely on imports of stainless steel waste generated each year have few resources, the contradiction between supply and demand for stainless steel scrap and nickel, chromium and other resources has become increasingly prominent. Stainless steel scrap in China is more scarce, the little number of stainless steel scrap can be recycled each year. Two stainless steel long service life, will not be scrapped in a few years or even decades. Therefore, stainless steel scrap less. China's stainless steel scrap, a large part to rely on imports.
recycling scrap of stainless steel life cycle. Although China's stainless steel consumption and production started late, long stainless steel life cycle, relatively early in the stainless steel consumption country, this part of China's stainless steel scrap with fewer resources, but estimates stainless steel, the average life cycle of 25 years or so, every year there are 200 000 t above.
can be seen, An Anatomy years, nearly 3 million tons of stainless steel scrap resources, far more than the stainless steel production in the United States.
stainless steel scrap recycling the meaning of
the past, we often say that China is a small stainless steel scrap. Recent studies have shown, this argument need to be corrected. Typically, as a source of stainless steel scrap resources are mainly three: First, the manufacturer of stainless steel scrap in the production process, such as the Note I, head cutting, cut tail, trimming; stainless steel products manufacturing or construction process generated scrap, scrap, car chips; life cycle of recycling scrap steel, scrap building materials such as used equipment or demolition. China's stainless steel consumption and production development later, the stainless steel long life cycle relative to the early stainless steel consuming country, this part of China's stainless steel scrap with fewer resources.
range of stainless steel scrap varieties and specifications, therefore the need to strengthen all kinds of alloy steel scrap sorting, processing and storage management.