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New 3 ton induction melting furnace
I. The new 3 ton induction melting furnace mainly includes: open 3 ton furnace body, furnace frame, furnace cover , tilting cylinder, hydraulic tilting cylinder, 3 ton inductor, yoke, high-pressure carbon-free rubber hose, furnace mouth and Furnace bottom pouring fixed material, full set of stainless steel water inlet distributor, return water collector and clamp, wall water inlet and outlet water dispenser, etc.
The new 3 ton induction melting furnace uses series resonance as the inverter circuit. The advantage of series resonance is that when the series resonance system is in normal working condition, its rectification part is fully open, and the object of control is the output power of the inverter part, that is, The series resonance is adjusted by adjusting the inverter to adjust the output power of the intermediate frequency power supply, so the new 3 ton induction melting furnace under this system can be a one-for-one induction melting furnace , one-for-two induction melting furnace or one-for-multiple induction melting furnace .
Second, the new . 3 tons induction melting furnace structure Laid points:
1. The steel structure of the furnace body adopts an open steel frame structure. Large-sized H- shaped steel or square steel pipes form the basic structure of the furnace frame. The overall structure is simple and sturdy, which is easy for daily maintenance and repair.
2 , furnace zui steep 95 degrees.
3. The surface of the furnace body platform is knotted with refractory material, which protects the furnace body more fully and also prevents the furnace body platform from deforming.
4. The components of the upper part of the induction furnace are removable, which makes it easy to replace the induction coil.
5. Induction furnace coils and yoke are fixed with welded steel structures equipped with appropriate supports and clamps.
6 , both sides of the pillar member is a heavy duty steel induction furnace zui rigid support, which provides a hydraulic tilting axis, while the axis shifting and relocation of the furnace to ensure that the motion trajectory of the mouth of the zui small, Reduced energy loss during tapping.
7. The copper tube of induction coil is made of aluminum-copper copper. The material is solid and durable high-conductivity TU1 oxygen-free copper tube. The water-cooled coil and the effective coil are integrally wound by a copper tube without segmentation. The adjacent two turns of the copper tube of the induction coil adopt excellent segmentation technology and are highly insulated. An insulating sheet is inserted between the adjacent induction coils and the coil. After being sprayed with insulating paint, it becomes a complete structure, and it is pressed by the upper and lower steel structures in the furnace body, and the overall structure is solid without deformation. An appropriate number of turns can be obtained zui large electrical efficiency. The coil is supplied with cooling water by multiple water channels, and is evenly distributed. The outside of the coil is tightly wound with insulating material. The inter-turn arc-shaped insulation gasket also ensures that the coil spacing is uniform and is conducive to the discharge of moisture.
8. The main pipeline of the coil waterway adopts pressure, pressure difference and temperature protection at the same time to ensure the water flow and inlet temperature of the main pipeline. Each branch pipeline is equipped with a flow relay from Japan's Lugong and an Emerson temperature switch on the return water collector to ensure that the flow and temperature of each return branch meet the design requirements. When water shortage occurs and the water flow is not smooth The power supply immediately shuts down for protection.
9. The yoke silicon steel sheet is made of South Korea's Posco, Wuhan Iron and Steel, Baosteel. Uniformly force the bolt provided in the merger, and the coil most large holding force, guaranteeing a long working life of the lining. After the silicon steel sheet is processed, the allowable tolerance of the shear notch flash is <± 0.1mm , the degree of bending after assembly, and the parallelism meets the requirements of TB / T4280-93 , which ensures that the coil and the yoke are in arc-shaped contact and are precisely coupled. At the same time, multiple sets of yoke fastening devices are firm and reliable, convenient for assembly, disassembly, adjustment and maintenance, and are evenly distributed along the circumference; the pads between the yoke and the coil are made of multiple layers of high-quality insulation materials, including multiple layers of mica boards and multiple layers. Ceramic fiber board. The yoke is cooled by water.
1 ) The top and bottom of the furnace body are equipped with formed heat insulation plates and short-circuit rings.
2 ) The furnace bottom structure meets the requirements for removing the furnace lining by the furnace lining pushing mechanism. Easy installation and convenient operation.
3 ) When the equipment is operating normally, the temperature of the furnace water inlet is not greater than 42 degrees Celsius.
Third, the technical parameters of the new 3 ton induction melting furnace
Term project | unit | 3T electric furnace data |
Electric furnace parameters | ||
Rated Capacity | t | 3 |
zui large capacity | t | 3.1 |
zui high operating temperatures | ℃ | 1700 |
Electrical parameters | ||
Transformer capacity | KVA | 2500KVA |
Transformer primary voltage | KV | 10 |
Transformer secondary voltage | V | 660 |
IF power supply rated power | KW | 2500 |
IF power zui high output voltage | V | 2800 |
working frequency | ||
Comprehensive parameters | Hz | 300 |
Melting rate | T / h | 1 |
Melting power consumption | kwh / t | 530 ± 5% |
Working noise | db | ≤85 |
Cooling water system | ||
Water supply pressure | MPa | 0.4 |
Inlet water temperature | ℃ | <35 ℃ |
Water temperature | ℃ | <65 ℃ |
Scope of supply of the new 3 ton induction melting furnace
Serial number | name | Specifications / model | Quantity | Unit price (ten thousand) | Total (ten thousand) |
1 | Series resonant dual output power supply | 2500KW, 300HZ ( 12 pulse rectification) | 1 set | ||
2 | Furnace assembly | 3T (open steel structure without bakelite pillar support Type coil, coil copper tube using medium aluminum Luo copper high quality TU1 rectangular tube) | 2 sets | ||
3 | Environmental protection dust removal furnace cover | Integrated dust removal system (in line with environmental requirements) | 2 sets | ||
4 | Power and furnace body connection components | Includes output copper bars and water-cooled cables (hollow water-cooled Cables, cable hoses United States.goodyear , and Matching anti-scalding sheath) | 2 sets | ||
5 | Remote control console | Computer aided management system | 1 set | ||
6 | Power cooling water pumping station system | Power pump station, one use, one spare model specifications one Contains electrical control components for electrical control systems | 1 set | ||
7 | Power cabinet with closed cooling tower | All copper pipes, no rusty parts in water system | 1 set | ||
8 | Furnace cooling water pumping station system | Furnace water pumping station Contains electrical control components for electrical control systems | 1 set | ||
9 | Furnace body supporting closed cooling tower | All copper pipes, no rusty parts in water system | 1 set | ||
10 | Hydraulic system | The hydraulic pump station has the same specifications and specifications | 1 set | ||
11 | Hydraulic control components | Hydraulically operated valve table | 1 set | ||
12 | Furnace lining ejection mechanism | Includes locking mechanism and hydraulic cylinder | 1 set | ||
13 | Hydraulic oil | Water glycol | 1 set | ||
14 | Main transformer | 2500KVA12 pulse (special transformer) | 1 set | ||
15 | Emergency generator | Diesel generator meets emergency oil pump and emergency water Pump use | 1 set | ||
16 | Furnace building tools | Crucible mold, Inside (Spain) knotted, Complete set of knotted workpieces ( furnace wall shaker , furnace bottom vibration Actuator ) | 1 time | ||
17 | Transportation of all equipment to the site | Road transport includes transportation insurance costs | 1 time | ||
18 | Equipment on-site installation and debugging and personnel training | ( 5 weeks) | |||
19 | 1 set | ||||
20 | Contains installation material (pipe is stainless steel), changed T2 copper bar connection between the voltage regulator and the power cabinet | ||||
twenty one | The total price of the turnkey project is: RMB 10,000 |