Jan. 05, 2025
Medium frequency furnaces are high-efficiency, energy-saving, and environmentally friendly industrial heating equipment, widely used in steel, non-ferrous metals, machinery, automobiles, and other industries. In the production process, since the workpiece will generate a lot of heat during the heating process, it needs to be dissipated through cooling to ensure the normal operation of the equipment and the quality of the workpiece. This article will introduce the commonly used cooling methods and characteristics of medium frequency furnaces.
Water cooling is the most commonly used cooling method for medium frequency furnaces. It mainly introduces circulating water to the vicinity of electrodes and induction coils through water pipes for cooling.
Water cooling has the following characteristics:
1. High efficiency: Water has excellent thermal conductivity and can quickly take away a lot of heat generated.
2. Low cost: Compared with other cooling methods, the equipment and material costs required for water cooling are lower.
3. Environmental protection and energy saving: Since circulating water is used for heat dissipation, it will not pollute the environment and can save a lot of energy.
4. Safe and reliable: After reasonable design and installation, the water cooling system can operate stably for a long time and can effectively protect equipment and workpieces.
Hydrogen cooling is an efficient cooling method for medium frequency furnaces. It mainly cools by introducing hydrogen into the vicinity of electrodes and induction coils.
Hydrogen cooling has the following characteristics:
1. High efficiency: Compared with water cooling, hydrogen has better thermal conductivity and can take away heat more quickly.
2. High temperature control accuracy: Due to the good thermal conductivity of hydrogen, the temperature can be controlled more accurately and the heating efficiency can be improved.
3. Safe and reliable: After reasonable design and installation, the hydrogen cooling system can operate stably for a long time and can effectively protect equipment and workpieces.
4. High cost: Compared with water cooling, the equipment and material costs required for hydrogen cooling are higher.
Fan cooling is a simple cooling method for medium frequency furnaces. It mainly uses fans to introduce air into the vicinity of electrodes and induction coils for heat dissipation.
Fan cooling has the following characteristics:
1. Low cost: Compared with water cooling and hydrogen cooling, the equipment and material costs required for fan cooling are lower.
2. Average efficiency: Due to the poor thermal conductivity of air, the heat dissipation efficiency is average.
3. Poor temperature control accuracy: Due to the poor thermal conductivity of air, it is difficult to accurately control the temperature.
4. Environmental protection and energy saving: Since natural wind is used for heat dissipation, it will not pollute the environment and can save a lot of energy.
Oil cooling is an efficient cooling method for medium frequency electric furnaces. It mainly cools by introducing oil near the electrode and induction coil.
Oil cooling has the following characteristics:
1. High efficiency: Compared with water cooling and fan heat dissipation, oil has better thermal conductivity and can take away heat more quickly.
2. High-temperature control accuracy: Due to the good thermal conductivity of oil, the temperature can be controlled more accurately and the heating efficiency can be improved.
3. High cost: Compared with water cooling and fan heat dissipation, the equipment and material costs required for oil cooling are higher.
4. Safe and reliable: After reasonable design and installation, the oil cooling system can operate stably for a long time and can effectively protect equipment and workpieces.
The selection of cooling methods for medium frequency furnace needs to be comprehensively considered according to specific production requirements and equipment characteristics. When selecting a cooling method, factors such as heat dissipation efficiency, temperature control accuracy, cost, safety and reliability need to be considered. At present, water cooling and hydrogen cooling are the two most commonly used cooling methods for medium frequency furnaces, while fan cooling and oil cooling are suitable for some special cases.
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The 5 ton electric arc furnace for steel-making is a special purpose equipment that makes ordinary steel, quality carbon steel, alloy steel and non-corrosive steel with electric arc as heat source and scrap steel (iron) as raw material.
15-ton electric arc furnace is used for the short-process steelmaking process, using 100% scrap steel or scrap steel + molten iron (pig iron), or scrap steel + sponge iron (DRI) as raw materials for steelmaking.
The 30-ton AC electric arc furnace is used to melt scrap steel to produce steel. Electrical energy is used to melt scrap steel. An arc forms between the charged material and the electrode.
30 Ton electric arc furnace is used for steelmaking short process smelting, using 100% scrap steel or scrap steel + molten iron (pig iron), or scrap steel + sponge iron (DRI) as raw materials for steelmaking.
The 50-ton ultra-high power electric arc furnace (50TUPH EAF) adopts ultra-high power, high impedance technology, bottom tapping technology (ETB), furnace wall oxygen oil burner and furnace door carbon-oxygen gun technology.
DC electric arc furnace is an electric arc furnace supplying electric energy with DC power supply. There is only one electrode on the top of the DC arc furnace, which is the negative electrode, and the bottom electrode is the positive electrode.
Electric arc furnaces are used to melt scrap steel for steel production. Electrical energy is used to melt scrap steel. An arc forms between the charged material and the electrode. The heat generated by the arc melts the scrap.
Electric arc furnace steel making is a steelmaking method that uses the thermal effect of electric arc to heat the charge for melting.
Ultra-high power electric arc furnace mainly changes the arc characteristics of high voltage and long arc to the arc characteristics of high current, low voltage and short arc
1 ton electric arc furnace is used for melting steel and titanium scrap metal. The principle of electric arc furnace is based on the generation of direct current, which converts electrical energy into heat energy through electrodes to melt the metal.
The closed pig iron furnace (submerged arc furnace iron making) is a non-blast furnace iron making method. Under the premise of guaranteeing the power supply, it is easy to solve the problem by using the reducing agent required by the submerged arc furnace iron making.
The main mechanical device design of Sanui ferroalloy refining furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
The Ferronickel submerged arc furnace is a special submerged arc furnace used for smelting nickel-iron alloy. Its main function is to add nickel ore, carbonaceous reducing agent (such as coke) and limestone and other raw materials into the furnace in a certain proportion
The main mechanical device design of Sanui ferrosilicon furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
The main mechanical device design of Sanui high carbon ferrochrome furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
Industrial silicon submerged arc furnace is an important equipment in silicon ore processing, playing a key role in the silicon industry.
The manganese silicon alloy furnace is mainly used to smelt silicon-manganese alloy, which is an alloy containing silicon and manganese.
The design of the submerged arc furnace main mechanical device by Sanui is based on China's national conditions and draws on international advanced technologies such as Demark and Perlmutter.
Submerged electric arc furnace is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent and solvent. It mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc.
Titanium slag production adopts titanium slag electric furnace (circular furnace and rectangular furnace according to its shape) smelting process.
The LF 20 T ladle refining furnace has the functions of arc heating under normal pressure, argon blowing and stirring at the bottom of the ladle, and reducing slag making in the ladle.
LF ladle refining furnace is a bottom-blown argon ladle furnace with three-phase submerged arc heating under normal pressure. It is a device for refining molten steel in a ladle.
VD vacuum refining furnace is a commonly used refining process equipment, mainly used for deoxidation, impurity removal and other operations of molten steel, so as to obtain high purity, low impurity content of high quality steel.
VOD vacuum refining furnace has multiple functions such as vacuum degassing, oxygen blowing decarburization, vacuum charging, argon blowing stirring, non-vacuum temperature measurement sampling, wire feeding, etc.
The cast steel melting induction furnace has outstanding advantages in heat penetration or melting soft magnetic alloys, high resistance alloys, platinum group alloys, heat-resistant, corrosion-resistant, wear-resistant alloys and pure metals.
Metal silicon smelting furnace is a metal silicon medium frequency melting furnace, which consists of furnace body, water and electricity introduction system, furnace tilting device, etc. It has fast melting temperature rise, easy to control furnace temperature and high production efficiency.
Medium frequency induction furnace mainly used for melting steel, alloy steel, special steel, stainless steel, and can also be used for melting and casting non-ferrous metals such as copper, aluminum, lead, zinc, etc. The customized range of induction furnaces sold by Sanrui ranges from 0.1 tons to 10 tons.
Medium frequency induction furnaces are mainly used for melting steel, alloy steel, special steel, stainless steel, and can also be used for melting and casting non-ferrous metals such as copper, aluminum, lead, and zinc.
Medium frequency aluminum melting furnace is used for melting and heating aluminum, scrap aluminum, aluminum ingots, and aluminum alloys; The melting capacity ranges from 100KG to 3000KG.
An induction furnace is an electric furnace that uses the induction electrothermal effect of the material to heat or melt the material. The main components of an induction furnace are sensors, furnace body, power supply, capacitors and control system.
The 3-ton medium frequency coreless induction furnace adopts a 6-phase 12-pulse double rectifier control system. A 2000KVA special rectifier transformer is used for the 2000KW medium frequency power supply.
The conductive arm of an electric arc furnace (EAF) is primarily composed of the front electrode conductive arm holder, a water-cooled clamping ring, the arm body, and the rear conductive copper plate.
The scrap charging basket of the electric arc furnace is mainly used for loading and conveying raw materials such as scrap steel into the electric arc furnace for smelting.
There are many insulation links between the EAF electrode holder and the conductive cross arm body, which greatly simplifies the cconductive cross arm structure and is a new type of electrode arm on the ultra-high power arc furnace.
Generally, the furnace cover of the electric arc furnace adopts the tubular water-cooled closed tube furnace cover structure.
The electrode lifting mechanism of electric arc furnace is composed of conductive cross arm and electrode column device.
Forged copper tile is one of the main accessories in submerged arc furnace (silicon metal furnace, calcium carbide furnace and iron alloy furnace). It generates heat energy due to passing through large current at high temperature, and is easy to be damaged due to poor working environment.
The furnace cover lifting and rotating device consists of a furnace cover lifting mechanism, a rotating mechanism and a rotating frame.
Submerged arc furnace pressure ring is used to monitor the change of air pressure in the furnace in real time, and adjust the air pressure automatically or manually according to the preset parameters to ensure the stability of air pressure in the furnace
Submerged arc furnace water-cooled Roof is an important part of submerged arc furnace (also known as electric arc furnace, calcium carbide furnace or mining furnace), which is mainly used to close the top of furnace body and bear the high temperature and pressure in the furnace.
Short network bus systems), also known as high current line, refers to the general term of the carrier fluid from the secondary outlet terminal of the transformer to the electrode (including the electrode).
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