Characteristics of traditional industrial system

1. When mining bauxite ore, it is necessary to transport the mined bauxite to the factory for sintering with shovels, mining machinery, cars and trains controlled by computers or manually.

2. Sintering, that is, the raw bauxite is burnt to mature bauxite raw materials.

One method is to add quicklime CaO, sodium carbonate Na2CO3 and coke (C) to bauxite powder containing 30-60% alumina Al2O3. According to the chemical equation, the ingredients are calculated and mixed, leaving room for medium-fine crushing, and the mixture is sieved with 100 mesh-120 mesh.

Then it is pressed into spherical and brick shape by ball making machine or brick making machine, and put into vertical or horizontal kiln or rotary kiln for sintering.

3. Convert to aluminum hydroxide A 1(OH)3. Put a handful of sintered bauxite powder into a large tank or pool filled with water and dissolve it in water (80-100℃); Filter. NaAlO2 water of sodium metaaluminate was obtained and the solution was concentrated.

Adding acid (HCl/H2SO4) or introducing CO2 to generate semi-finished aluminum hydroxide Al(OH)3, and heating, aluminum hydroxide turns into alumina Al2O3 at (2000℃).

4. Electrolyze a small amount of chemical raw materials such as alumina Al2O3 and cryolite into molten aluminum (18000 kWh/ton), and then cold cast the molten aluminum into aluminum ingots.

5. Pressing into various aluminum profiles-Computer-controlled mechanical assembly lines made of silicon wafers are used to press aluminum ingots into various profiles (including aluminum alloys) and to manufacture automobiles, trains, tractors, airplanes, satellites, spaceships, electrical appliances, etc. This is a traditional industrial and product production process, which has certain economic benefits.

Current situation of traditional industries:

The essence of Internet penetration into traditional industries is that traditional industries need the Internet. Internet is a technical platform and underlying architecture. It stems from security needs, but it shines brightly in the economic field.

The traditional economy is transforming into a network economy, which makes all walks of life need to be connected. Therefore, the connection technology represented by the Internet has gradually penetrated into all walks of life, triggering an information revolution characterized by integration.

Internet is a penetrating factor. Although it is not a direct productive force, its integration with various industries has accelerated the transformation and upgrading of traditional industries. Broadcasting, banking, telecommunications, home, education, lottery, automobile, real estate, retail, etc. It is accelerating the transformation, focusing on strategic integration and model innovation, showing the characteristics of production model-driven, and taking core business as the entry point for online and offline integration.

On March 6, 20 14, Li Yanhong, member of Chinese People's Political Consultative Conference, vice chairman of the All-China Federation of Industry and Commerce, chairman and CEO of Baidu Company and vice chairman of internet society of china, said in response to a reporter's question that the impact of the Internet on traditional industries will become more and more obvious, and the Internet is accelerating the elimination of traditional industries.

Baidu Encyclopedia-Traditional Industry