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The molten aluminum medium frequency induction furnace is a new type of high efficiency energy-saving furnace developed according to the aluminum smelting process . It can well meet the requirements of the aluminum smelting process: strict alloy composition requirements, discontinuous production, large single furnace capacity, etc. Reduce the consumption, reduce the burning loss, improve the product quality, reduce the labor intensity, improve the working conditions and improve the efficiency of production , suitable for intermittent operation, with more alloys and remelting materials .
The composition of the molten aluminum intermediate frequency induction furnace :
The whole set of melting furnace equipment includes intermediate frequency power supply cabinet, compensation capacitor, furnace body and water-cooled cable, and reducer.
Melting aluminum medium frequency induction furnace selection table :
model | parameter name | ||||
Rated Capacity | rated power | Operating temperature | Melting rate | frequency | |
GWJTZ0.3-160-1 | 0.3 | 160 | 700 | 0.25 | 1000 |
GWJTZ0.5-250-1 | 0.5 | 250 | 700 | 0.395 | 1000 |
GWJTZ1.0-350-1 | 0.8 | 350 | 700 | 0.59 | 1000 |
GWJTZ1.0-500-1 | 1.0 | 500 | 700 | 0.89 | 1000 |
GWJTZ1.6-750-1 | 1.6 | 750 | 700 | 1.38 | 1000 |
GWJTZ3.2-1500-0.5 | 3.2 | 1500 | 700 | 2.38 | 1000 |
GWJTZ5.0-2500-0.35 | 5 | 2500 | 700 | 4 | 1000 |
What are the uses of molten aluminum intermediate frequency induction furnaces?
The medium-frequency aluminum melting furnace is mainly used for the melting and warming of aluminum and aluminum alloys , especially for aluminum profiles, aluminum products, etc., which are often used for batching operations in single furnaces, such as aluminum profiles, aluminum products, alloy plates and aluminum scrap. Recycling, etc.
What are the advantages of molten aluminum medium frequency induction furnace?
1. Small size, light weight, high efficiency and low power consumption;
2. Low ambient temperature, low smoke and dust, and good working environment;
3. Simple operation process and reliable smelting operation;
4. The heating temperature is uniform, the burning loss is small, and the metal composition is uniform;
5. The casting quality is good, the melting temperature is fast, the furnace temperature is easy to control, and the production efficiency is high;
6, high availability, easy to change varieties.
What are the characteristics of the molten aluminum intermediate frequency induction furnace structure?
1. The whole set of melting furnace equipment includes intermediate frequency power cabinet, compensation capacitor, furnace body (two) and water-cooled cable and reducer.
2. The furnace body consists of four parts: furnace shell, induction coil, furnace lining, and tilting furnace gearbox.
3. The furnace shell is made of non-magnetic material, and the induction coil is a spiral cylinder made of a rectangular hollow tube, and the cooling water is passed through the tube during melting.
4. The coil leads out the copper row and communicates with the water-cooled cable. The furnace lining is close to the induction coil and is sintered by quartz sand. The tilting of the furnace body is directly rotated by the tilting gear box. The tilting gearbox is a two-stage turbine shifting gear with good self-locking performance, stable and reliable rotation, and avoids danger when emergency power is cut off.
Common emergency handling accidents of molten aluminum intermediate frequency induction furnace
Emergency treatment of excessive cooling water temperature
(1) The sensor cooling water pipe is blocked by foreign matter, causing the flow of water to decrease and the temperature of the cooling water to be too high. At this time, it is necessary to first power off, and then use compressed air to purge the water pipe to remove foreign matter. Pump outage time should not exceed 8min ;
(2) The coil cooling water channel has scale, which causes the water flow to decrease and the cooling water temperature to be too high. According to the water quality of the cooling water, the obvious scale on the coil water channel must be pickled in advance every other year or two;
(3) The sensor water pipe suddenly leaks. This leakage is mostly caused by insulation breakdown between the inductor and the water-cooled yoke or the surrounding fixed bracket. When this accident is discovered, it should immediately stop power, strengthen the insulation treatment at the breakdown, and seal the surface of the leak with epoxy resin or other insulating glue to reduce the voltage. The aluminum of this furnace is hydrated, and the furnace is repaired after the completion. If the coil water channel is broken down in a large area, it is impossible to temporarily seal the gap with epoxy resin, etc., and it is only necessary to stop the furnace, pour the aluminum liquid, and repair it.
What kinds of molten aluminum medium frequency induction furnaces ?
1. The oil furnace is a melting aluminum furnace mainly containing diesel oil and heavy oil. The aluminum melting furnace is better than the electric furnace, but the energy consumption cost is the highest cost among the five aluminum melting furnaces, and the environmental pollution is relatively high. Big.
2. Coal stoves, which are mainly used to consume coal, have lower energy consumption costs, but the environmental pollution is the biggest. The state has severely suppressed the pressure. Many places have already banned coal-fired furnaces.
3 . The gas furnace is a melting aluminum furnace mainly consuming natural gas. The aluminum melting furnace is relatively environmentally friendly, but the price of natural gas is also high, and in some places, the natural gas supply is tight, and the fuel supply resources are not rich enough.
4 . Electric furnace, melting aluminum furnace mainly for electricity consumption, electric resistance melting aluminum furnace , electromagnetic induction melting aluminum furnace, medium frequency induction melting aluminum furnace, now more aluminum melting furnace is electric furnace.
What may be wrong with the aluminum melting furnace ?
Power failure accident handling - emergency treatment of aluminum water in the furnace
(1) A power outage occurs during the start of melting of the cold charge, and the charge has not completely melted, and it is not necessary to tilt the furnace, and the original state is maintained, and only the water is continuously passed, waiting for the next time the power is turned on again;
(2) The aluminum water has melted, but the amount of aluminum water is not much and cannot be poured (the temperature is not reached, the composition is unqualified, etc.), and it is considered that the furnace is naturally solidified after being tilted to a certain angle. If the amount is large, consider dumping aluminum water;
(3) Due to sudden power failure, the aluminum water has melted, trying to insert a pipe in the aluminum water before the aluminum water solidifies, so as to eliminate the gas when it is melted again, and prevent the gas from expanding and causing an explosion accident;
(4) When the solidified charge is melted for the second time, it is better to tilt the furnace forward by an angle to facilitate the melting of the molten aluminum under the inclined first portion to prevent explosion.
Emergency treatment of leaking aluminum water
(1) Accidents of aluminum leakage are likely to cause equipment damage and even endanger the human body. Therefore, it is necessary to do the maintenance and maintenance of the furnace as much as possible to avoid accidents involving leakage of aluminum;
(2) When the alarm of the furnace lining thickness measuring device is ringing, the power should be cut off immediately, and the surrounding of the furnace body should be inspected to check whether the aluminum liquid leaks. If there is leakage, immediately tilt the furnace and pour the aluminum liquid;
(3) If it has been found that aluminum water is leaking, immediately evacuate the personnel and directly pour the aluminum water into the pit before the furnace;
(4) The aluminum leakage liquid is caused by the destruction of the furnace lining. The smaller the thickness of the lining, the higher the electrical efficiency and the faster the melting rate. However, when the thickness of the lining is less than 65 mm , the thickness of the entire lining is almost a hard sintered layer and a very thin transition layer. Without a loose layer, the lining is slightly quenched and quenched to produce fine cracks. The crack can crack the entire interior of the lining, and the aluminum liquid is easily leaked out;
(5) In the event of a leaking furnace, the personal safety should be ensured first. In consideration of the safety of the equipment, the main consideration is to protect the induction coil. Therefore, if the furnace leaks, the power should be turned off immediately to keep the cooling water flowing.
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