Refractory furnace structure
Melting furnace USES 200~2500Hz medium frequency power supply for induction heating, the power range is 20~2500KW, according to its characteristics can also be called medium frequency furnace. It is mainly used for smelting and raising temperature of precious metals such as gold, platinum, silver, copper, iron, stainless steel, aluminum alloy, aluminum and other metals. IGBT power supply using imported power devices, more integrated miniaturization, effective output power up to 90%, energy saving, compared with the traditional SCR medium frequency energy saving 60%.
The complete set of electric furnace equipment for smelting furnace includes medium frequency power supply cabinet, compensation capacitor, furnace body (two), water-cooled cable and reducer. The furnace body is composed of four parts: furnace shell, induction ring, furnace lining, tilting furnace reducer, etc. The furnace shell is made of non-magnetic materials, and the induction coil is a spiral cylinder made of rectangular hollow tube, which is filled with cooling water during smelting. The copper strip of the coil is connected with the water-cooled cable. The furnace lining is close to the induction ring and is made of quartz sand compacted and sintered. The tilting of the furnace body is directly turned by the reduction box of the tilting furnace. The tilting furnace reducer is a two-stage turbine with variable speed, good self-locking performance, stable and reliable rotation, and the tilting furnace can be seen in case of emergency power failure to avoid danger. The control of two tilting furnace reducer motors can be selected by the furnace selector switch. The switch box with four-core rubber wire enables the operator to stand in an appropriate position to control the tilting and reset of the furnace body. At present, the above mentioned mechanism is not used in melting furnaces with a capacity of more than 3 tons. The tilting furnace is mainly composed of hydraulic cylinder, and there are several evenly distributed imitation arc magnetic yoke outside the induction copper ring to prevent magnetic leakage. Using this method, the furnace shell does not need to be made of non-magnetic materials, the outside of the furnace shell is not hot. The process of tilting furnace with hydraulic tilting device is gentle and safe.
The melting furnace USES medium frequency power supply to set up medium frequency magnetic field, which makes the ferromagnetic material generate induced eddy current and generate heat, so as to achieve the purpose of heating the material. Intermediate frequency electric furnace using 200-2500 hz medium frequency induction heating power supply, heat insulation, furnace is mainly used for smelting carbon steel, alloy steel, special steel, also can be used for copper, aluminum, lead, zinc and other non-ferrous metal smelting and the temperature. Equipment is small in size, light weight, high efficiency, less consumption, melting heat up quickly, easy to control furnace temperature, high production efficiency.
1. Small size, light weight, high efficiency and low power consumption; Low temperature around the furnace, less smoke, good working environment;
2. Simple operation process, reliable smelting operation; It is convenient to change varieties.
3. Uniform heating temperature, low burning loss and even metal composition;
4. Good casting quality, fast melting and heating, easy furnace temperature control, high production efficiency;
According to its characteristics in industry can be called industrial furnace, electric furnace, high frequency electric furnace, small electric furnace, energy-saving furnace.
6. The furnace body can be electric tipped, easy to come out, especially suitable for casting.
The cooling system of the melting furnace consists of two parts: the cooling power supply and the furnace body. The power supply part includes each power supply device in the power supply cabinet and the power electrothermal capacitor group. The power supply part is composed of precision electrical components, and the cooling pipe is relatively thin. In order to prevent scaling inside the pipe and blocking the pipe, softened water or purified water is generally used.
Electric furnace and power supply adopt independent cooling device. Medium frequency power supply adopts fully enclosed cooling device, and furnace body adopts fully enclosed cooling device.
Two sets of independent cooling devices are used in the melting furnace to avoid mutual influence. Because the medium frequency power supply needs low temperature cooling water (pure water), the water outlet temperature should be controlled at 55° Within C, the cooling water temperature of the induction coil of the electric furnace can be slightly higher, which can improve the thermal efficiency of the electric furnace and reduce the volume of the cooling device, thus reducing the cost.
The distinction between melting furnace and melting furnace:
Melting furnace usually refers to the industrial furnace which melts metal or non-metal, adjusts its composition, removes its impurities and obtains the set composition; Melting furnaces are industrial furnaces that melt metals or nonmetals into liquids. The difference between the two is lian and hua. Its type is roughly as follows: melting furnace: blast furnace and blast furnace iron field; Steel furnace, mixed iron furnace; Ferroalloy melting furnace (such as open arc furnace, aluminothermic melting furnace, roasting rotary kiln, mine electric furnace and multi-layer mechanical roasting furnace, etc.); Non-ferrous metal melting furnace (such as blast furnace, flash furnace, sintering furnace, converter and refining furnace, etc.)
Melting furnace: cupola, cupola (such as casting all kinds of cold air, hot air cupola and all kinds of cupola); Metal melting furnace (such as various copper smelting furnace, lead melting furnace aluminum melting furnace, etc.); Non-metal melting and smelting furnace (including glass furnace, corundum smelting furnace, silicon smelting furnace and refractory and insulation material melting furnace, etc.).
Rongsheng refractory material mainly produce high alumina brick, silica brick, clay brick, magnesite no bricks, insulation materials, refractory mortar and castables and a series of high quality products, rongsheng company adhere to the management idea, persistent adherence to the "integrity, courtesy, innovation and dedication" principle, the "high quality and low price" as the cornerstone of enterprise development, to create "rongsheng brand" as the enterprise strategic objectives. And with scientific management process, sound customer information management system, rich product types, to provide our users with satisfactory, timely, efficient service.