In recent years, the electric arc furnace steelmaking with rapid action was put into operation one after another. The cost of the electric arc furnace steelmaking, which people are most looking forward to and eager to understand, has always been a mystery. Due to the opacity of its cost, electric arc furnace steelmaking has been covered with a mysterious veil. Let's talk about the composition of the total production cost of electric furnaces.
1. About the construction cost of the electric arc furnace: for the construction of an 80-ton continuous production kangsidi horizontal charging ultra-high power electric furnace, the total cost is basically about 50 million yuan, that is: (1) The cost of a new plant (some enterprises use the old plant); (2) Kangsidi continuous charging system (represented by Henan Taihang Quanli Heavy Industry Co., Ltd.); (3) Main equipment of electric arc furnace (the new electric furnace is basically between 75-120 tons, and not many exceed 100 tons); (4) The main equipment of refining furnace (basically matched with electric arc furnace); (5) Continuous casting equipment (mostly used); (6) Dust removal systems (this is a big project, which must pass due to the tension of environmental protection policy); (7) Waterway system; (8)Electric auxiliary system.
The above eight items basically cover the whole production system of the electric arc furnace. For the steel rolling system, no capital investment is needed, and the old equipment is basically used. As for the construction speed, the construction speed of private enterprises can be said to be amazing. It took only half a year to set up an electric furnace steelmaking enterprise with an annual output of 1 million tons.
2. During the construction process, the electric furnace steel enterprises began to prepare for production. During this period, the bosses of the steel enterprises saw a profit of more than 1000 yuan per ton of steel in the long process steel enterprises, and they all wanted to put it into production as soon as possible. In order to make the electric furnace steelmaking put into production one day earlier, the bosses can't wait to take turns building their own. At the end of the construction, the process of preparing for production is also arduous and magnificent. The purchase of electrodes is the most competitive.
3. Speaking of the early trial production, because the electric furnace steelmaking technology is relatively long, the process technology is quite weak, and there is a shortage of technicians, especially for the horizontal feeding and continuous production of konsti, and the shortage of relevant technicians. During the trial production process, there are many difficulties, safety accidents, production accidents and casualties continue to explode. From February 2018 to now, it can be said that the electric furnace production enterprises have experienced the test of life and death, Basically, a smooth and stable production has been achieved. New electric arc furnaces in Henan, Hubei, Guangdong, Guangxi, Zhejiang, Fujian, Xinjiang, Hebei and other places have successively achieved stable production. Taking the 80-ton electric arc furnace of a factory in East China as an example, its production situation is amazing. In just three months, the enterprise has achieved production capacity. And the production cost has been controlled to the advanced level of the industry. Let's analyze the composition of the current production cost of the enterprise one by one!
4. The production cost composition of an electric arc furnace in Fujian Province (production index in July 2018; a total of 24 days of production; the average daily output of 35 furnaces (83 tons of molten steel per furnace); Total production 69896 tons;): Kangsidi horizontal feeding system; 80-ton electric furnace; 80-ton refining furnace; Six machine six-strand continuous caster (production of hrb400e earthquake resistant conch; local market sales price 4000 yuan/ton):
4.1 Cost of iron and steel materials: the enterprise takes the purchase of a large number of local industrial waste, iron sales, heavy scrap, and primary and secondary crushing materials as production raw materials; The average price is controlled at 2300 yuan; Due to its good material type, the steel yield is relatively high, which can be basically controlled at 90%. The production cost of steel material is about 2300 yuan /90%=2555 yuan;
4.2 Electrode consumption cost: the electrode price of the scenery has fallen from high altitude, and the unit price of the electrode for ultra-high power arc furnace steelmaking with a diameter of 600 has fallen from nearly 200000 yuan to about 70000 yuan; Ordinary power electrodes, such as those used in refining furnaces with a diameter of 400, have fallen to about 50000 yuan. The electrode cost is: electric furnace steelmaking electrode cost: 70000 yuan *0.0015 tons / ton of steel =105 yuan + refining furnace steelmaking electrode cost: 50000 yuan *0.00045 tons / ton of steel =22.5 yuan =127.5 yuan;
4.3 Electricity price cost: the composition of electricity price cost is mainly: (1) electric furnace power consumption: 384.7 kwh / ton; (2) Power consumption of refining furnace: 36.65 degrees / ton; (3) Dust removal power consumption: 20.63 degrees / ton; (4) Power consumption of oxygen generation station: 21.18 degrees / ton; (5) Power consumption of water treatment: 19.36 kwh / ton; (6) Other auxiliary power consumption: 8.1 kwh / ton; Total power consumption of six items: 384.7+36.65+20.63+21.18+19.36+8.1=490.62 kwh / ton *0.68 yuan / kWh =333.62 yuan.
4.4 Steelmaking fuel cost: the fuel cost of electric furnace steelmaking mainly includes: (1) natural gas: 2.5kg/ ton of steel *3.25 yuan =8.125 yuan; (2) Oxygen: 28kg/ ton steel *1.8 yuan =50.4 yuan (3) nitrogen 2.6kg/ ton steel *0.8 yuan =2.08 yuan; (4) Argon 0.68kg/ ton of steel *2.4 yuan =1.632 yuan, etc; The total cost is about 62.237 yuan without considering the factors that the gas price changes with the market.
4.5 Auxiliary material alloy cost: (1) lime: (2) dolomite; (3) Compound Deoxidizer; (4) Alloy (high manganese alloy, medium manganese alloy, ferrosilicon, other alloys, etc.) (5) carbon powder; (6) Carburizing agent; (7) Fluorite; (8) Silicon carbide; (9) Carbonized rice husk; (10) Drainage sand: the unit price of the above auxiliary materials involves data confidentiality, and the total cost is 121.86 yuan.
4.6 Cost of other consumables: maintenance, cost of low-value products, cost of various samplers, cost of thermocouples: cost of bricks, skateboards, institutions, etc., which are not provided temporarily due to data confidentiality. Total cost: 4.85 yuan
4.7 Contracting cost: medium contracting cost: 52 yuan + large contracting cost 4.8 yuan =56.8 yuan.
4.8 Rolling cost: 129.75 yuan (continuous casting and rolling).
4.9 Workers' wages: 47.6 yuan in total;
The total production cost is: 1. Steel material cost: 2555 yuan+ 2. Electrode consumption cost: 127.5 yuan+ 3. Electricity price cost: 333.62 yuan; 4. Steelmaking fuel cost: 62.237 yuan +5. Auxiliary material alloy cost: 121.86 yuan+ 6. Cost of other consumables: 4.85 yuan +7. Contracting cost: 56.8 yuan +8. Rolling cost: 129.75 yuan +9. Workers' wages: a total of 47.6 yuan= 3439.2 yuan. The selling price of the market spiral is 4000 yuan per ton excluding tax, after deducting the total production cost of 3439.2 yuan; The gross profit is 560.8 yuan; The deduction of environmental protection, taxes, financial expenses, etc. is calculated at 200 yuan; The net profit can basically reach 260 yuan; 70000 tons per month; Net profit of 18.2 million yuan; The construction cost is basically recovered in three months.
Therefore, although electric furnace steelmaking is not comparable to the huge profit of 1000 yuan/ton of long process, it will emerge and remain invincible in the market trend of national environmental protection, industrial policy and other general situations.
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