What is ore heat furnace?
author: Glimpse
2022-12-01
What is ore heat furnace?
The ore heat furnace is also known as an arc electric furnace or resistor. It is mainly used to restore smelting ore, carbon essence and solvents and other raw materials. It mainly produces iron alloys such as silicon iron, manganese iron, chromium iron, tungsten iron, silicon manganese alloy, and is an important industrial raw material such as the metallurgical industry and chemical raw materials such as stones. The load of the miner transformer is continuous and stable, the impedance voltage is low, the number of pressure regulation is large, and the level difference is small. It can be divided into two types: load and unlimited adjustment. Generally, the first few levels of constant capacity output, and the latter -level constant current output.
The ore heat furnace is also known as an arc electric furnace or resistor. It is mainly used to restore smelting ore, carbon essence and solvents and other raw materials. It mainly produces iron alloys such as silicon iron, manganese iron, chromium iron, tungsten iron, silicon manganese alloy, and is an important industrial raw material such as the metallurgical industry and chemical raw materials such as stones. Its work is characterized by carbon quality or magnesium refractory material as a furnace lining, and the self -cultivation electrode is used. The electrode inserted into the furnace for buried arc operations. If the energy and current of the arc are passed through the furnace, the energy is generated by the resistance of the furnace material to melt the metal, and the material is added, the intermittent iron residue, and a continuous operation of an industrial electric furnace. The load of the miner transformer is continuous and stable, the impedance voltage is low, the number of pressure regulation is large, and the level difference is small. It can be divided into two types: load and unlimited adjustment. Generally, the first few levels of constant capacity output, and the latter -level constant current output.
Structural features
The ore heat furnace is an industrial electric furnace with huge power consumption. Mainly from furnace shells, furnace lids, furnaces, short nets, water -cooled systems, smoke discharge systems, dust removal systems, electrode shells, electrodes, and elevation systems, upper and lower feeding systems, holder, burning worker, hydraulic system, ore heat furnace Compositions of transformers and various electrical equipment.
Thermal data electricity 2. The thermal function reaches 0.85xExhibit, the thermal function reaches 0.7 ～ 0.8xinterp, the thermal function reaches 0.7 ～ 0.8xinterp, the thermal function reaches 0.85xhip, and the thermal function reaches 0.85xhip. The next useful and consumable Catalonia, lower Catalonia, high lift, high lift, high lift rate Effective handle segment
(1) Reduce electricity by 5~20%
(2) Improve the product by more than 5%~10%
Method principle
In general, in order to solve the problem of low power factor of submerged arc furnace, our country generally adopts the way of capacitance compensation. Usually, reactive power compensation is carried out at the high-voltage end. However, because the high-voltage end compensation cannot solve the problem of three-phase balance, and because the inductive reactance of the short network accounts for more than 70% of the inductive reactance of the whole system, the high-voltage end compensation does not achieve the goal of reducing the inductive reactance of the short network system and improving the power factor of the short network. The purpose of increasing transformer output is only meaningful to the power supply department.
Therefore, some units have adopted measures of high and low pressure on the new furnace at the same time to solve the above problems. Compensation on the short mesh can greatly increase the power factor of the short mesh, reduce the power consumption, and target the low -pressure side of the furnace to change the low pressure side. A large amount of powerless consumption and imbalance of short nets, taking into account the effective improvement of power factor, and implementing the renovation of local compensation technical transformation. Technically, it is reliable and mature. Economically, input and output are proportional to the positive proportional to be proportional. Essence In the low -voltage side of the mine thermal furnace low -voltage side of the short -net -free consumption and the inconsistent layout length, the unbalanced local compensation is implemented, regardless of the increase in power factor, absorbing harmonic, or increased production, increasing production, reduction of consumption, reduction of consumption. , They all have advantages that cannot be compared with high -pressure compensation. However, due to the high cost and due to the harsh working environment, the life expectancy has been greatly affected. At the same time, the short -network low -voltage endless compensation has also brought harmonic increases. Therefore, measures must be taken to suppress 3 to 7 harmonics. As a result, the investment recycling cycle is longer, and the cost of subsequent maintenance is high, and the comprehensive benefits are not good. Generally applicable to new stoves [2].
Future
1. The ore heat furnace develops towards high -power and large -scale directions. In order to improve thermal efficiency, improve productivity and meet the process requirements of concentrated power smelting;
2. Use low frequency (0.3-3Hz) smelting, which can save and improve product quality.
3. Set up tobacco, dust removal and energy recovery devices.
4. Develop a hollow electrode system. Smaller particles can be added from the hollow electrode to save energy, save electrode consumption, and stabilize melting ponds.
5. Use the furnace rotation structure.
6. Develop and develop a computer process software system for various mineral heat furnace process to guide smelting and make the smelting in the best state. As a result, product quality, reducing energy consumption and increasing production.
Keywords: ore heat furnace, arc electric furnace, resistance electric furnace, iron alloy smelting
The ore heat furnace is also known as an arc electric furnace or resistor. It is mainly used to restore smelting ore, carbon essence and solvents and other raw materials. It mainly produces iron alloys such as silicon iron, manganese iron, chromium iron, tungsten iron, silicon manganese alloy, and is an important industrial raw material such as the metallurgical industry and chemical raw materials such as stones. The load of the miner transformer is continuous and stable, the impedance voltage is low, the number of pressure regulation is large, and the level difference is small. It can be divided into two types: load and unlimited adjustment. Generally, the first few levels of constant capacity output, and the latter -level constant current output.
The ore heat furnace is also known as an arc electric furnace or resistor. It is mainly used to restore smelting ore, carbon essence and solvents and other raw materials. It mainly produces iron alloys such as silicon iron, manganese iron, chromium iron, tungsten iron, silicon manganese alloy, and is an important industrial raw material such as the metallurgical industry and chemical raw materials such as stones. Its work is characterized by carbon quality or magnesium refractory material as a furnace lining, and the self -cultivation electrode is used. The electrode inserted into the furnace for buried arc operations. If the energy and current of the arc are passed through the furnace, the energy is generated by the resistance of the furnace material to melt the metal, and the material is added, the intermittent iron residue, and a continuous operation of an industrial electric furnace. The load of the miner transformer is continuous and stable, the impedance voltage is low, the number of pressure regulation is large, and the level difference is small. It can be divided into two types: load and unlimited adjustment. Generally, the first few levels of constant capacity output, and the latter -level constant current output.
Structural features
The ore heat furnace is an industrial electric furnace with huge power consumption. Mainly from furnace shells, furnace lids, furnaces, short nets, water -cooled systems, smoke discharge systems, dust removal systems, electrode shells, electrodes, and elevation systems, upper and lower feeding systems, holder, burning worker, hydraulic system, ore heat furnace Compositions of transformers and various electrical equipment.
Thermal data electricity 2. The thermal function reaches 0.85xExhibit, the thermal function reaches 0.7 ～ 0.8xinterp, the thermal function reaches 0.7 ～ 0.8xinterp, the thermal function reaches 0.85xhip, and the thermal function reaches 0.85xhip. The next useful and consumable Catalonia, lower Catalonia, high lift, high lift, high lift rate Effective handle segment
(1) Reduce electricity by 5~20%
(2) Improve the product by more than 5%~10%
Method principle
In general, in order to solve the problem of low power factor of submerged arc furnace, our country generally adopts the way of capacitance compensation. Usually, reactive power compensation is carried out at the high-voltage end. However, because the high-voltage end compensation cannot solve the problem of three-phase balance, and because the inductive reactance of the short network accounts for more than 70% of the inductive reactance of the whole system, the high-voltage end compensation does not achieve the goal of reducing the inductive reactance of the short network system and improving the power factor of the short network. The purpose of increasing transformer output is only meaningful to the power supply department.
Therefore, some units have adopted measures of high and low pressure on the new furnace at the same time to solve the above problems. Compensation on the short mesh can greatly increase the power factor of the short mesh, reduce the power consumption, and target the low -pressure side of the furnace to change the low pressure side. A large amount of powerless consumption and imbalance of short nets, taking into account the effective improvement of power factor, and implementing the renovation of local compensation technical transformation. Technically, it is reliable and mature. Economically, input and output are proportional to the positive proportional to be proportional. Essence In the low -voltage side of the mine thermal furnace low -voltage side of the short -net -free consumption and the inconsistent layout length, the unbalanced local compensation is implemented, regardless of the increase in power factor, absorbing harmonic, or increased production, increasing production, reduction of consumption, reduction of consumption. , They all have advantages that cannot be compared with high -pressure compensation. However, due to the high cost and due to the harsh working environment, the life expectancy has been greatly affected. At the same time, the short -network low -voltage endless compensation has also brought harmonic increases. Therefore, measures must be taken to suppress 3 to 7 harmonics. As a result, the investment recycling cycle is longer, and the cost of subsequent maintenance is high, and the comprehensive benefits are not good. Generally applicable to new stoves [2].
Future
1. The ore heat furnace develops towards high -power and large -scale directions. In order to improve thermal efficiency, improve productivity and meet the process requirements of concentrated power smelting;
2. Use low frequency (0.3-3Hz) smelting, which can save and improve product quality.
3. Set up tobacco, dust removal and energy recovery devices.
4. Develop a hollow electrode system. Smaller particles can be added from the hollow electrode to save energy, save electrode consumption, and stabilize melting ponds.
5. Use the furnace rotation structure.
6. Develop and develop a computer process software system for various mineral heat furnace process to guide smelting and make the smelting in the best state. As a result, product quality, reducing energy consumption and increasing production.
Keywords: ore heat furnace, arc electric furnace, resistance electric furnace, iron alloy smelting
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