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Syed Rashid Ahmed ButtShaanxi Chengda Industrial Furnace Co., Ltd. completed the commissioning of electric arc furnace, the workers carefully cooperated with Chengda engineers to learn and operate the equipment, showing the deep friendship and excellent cooperation between the people of China and Pakistan. -
AboubacarAfter more than 1 month of intense production and debugging, 2 sets of heat exchange flue gas settling chamber equipment has been successfully put into operation ~ All the personnel involved in the project have worked hard! ~ -
Ji-hwan【 Warm congratulations 】 Shaanxi Chengda Industrial Furnace Manufacturing Company in South Korea, North Chungcheong County precious metal smelting furnace equipment installation and careful manufacturing and strict commissioning, looking forward to the future in more fields to achieve mutually beneficial win-win cooperation!
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Fly Ash Large-Scale Rock Wool Melting Electric Furnace
| Place of Origin | China |
|---|---|
| Brand Name | Shaanxi Chengda |
| Certification | ISO 9001 |
| Model Number | Negotiate based on equipment processing capacity |
| Minimum Order Quantity | 1 unit |
| Price | The price will be negotiated based on the technical requirements and supply scope of Party A |
| Packaging Details | Discuss according to the specific requirements of Party A |
| Delivery Time | 2 months |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | Complete production supply chain, supply on time, and meet quality standards |
Product Details
| Insulation Material | High-quality Refractory Bricks | Material Processed | Rock Wool, Mineral Wool |
|---|---|---|---|
| Voltage | 380V/415V (customizable) | Model | RW-1000 |
| Furnace Structure | Box-type Or Tunnel-type | Electrode Pole Circle | Φ1350 ~ Φ1400mm |
| Hourly Output | 5-6 Tons Per Hour | Heating Method | Electric Heating |
| Application | Thermal Insulation Material Production | ||
| Highlight | Fly Ash rock wool electric furnace,Large-scale mineral wool melting furnace,Electric furnace for rock wool production |
||
Product Description
Fly Ash Large-Scale Rock Wool Melting Electric Furnace
Product Introduction
1. Product Overview
Product Name: Special Melting Electric Furnace for Large-Scale Fly Ash Rock Wool Production
Manufacturer: Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd.
This furnace is designed for collaborative large-scale disposal of domestic waste incineration fly ash and hazardous waste fly ash. Taking water-washed dechlorinated fly ash as core raw material, mixed with basalt, metallurgical slag and silicon-aluminum auxiliary materials, it melts raw materials at high temperature to produce homogeneous molten glass continuously, which is directly delivered to centrifugal fiber forming line for producing fireproof thermal insulation rock wool. It realizes thorough harmless treatment and high-value resource utilization of fly ash, fully complying with hazardous waste disposal, circular economy and carbon peaking & carbon neutrality policies.
Adopting three-phase submerged arc melting structure, fully sealed water-cooled furnace body and complete PLC intelligent control system, the furnace is specially optimized for fluctuating composition, high chloride and heavy metal content of fly ash. It can operate stably and continuously for over 8000 hours, with dioxin decomposition rate ≥99.99%. Heavy metals are fully solidified in glass lattice, and leaching indicators are far better than national hazardous waste control standards. One single set can support large-scale rock wool production line with annual output of 20,000–50,000 tons.
2. Complete Supporting System Composition
The full set of equipment is delivered as an integrated unit, consisting of 10 core systems:
- Custom special furnace transformer multi-stage voltage regulation power supply system
- High-voltage power distribution + PLC full-automatic integrated electric control & remote monitoring system
- Three-phase self-baking electrodes, hydraulic lifting & clamping assembly
- Low-impedance energy-saving water-cooled short network (water-cooled cables, forged copper tiles, conductive cross arms)
- Segmented fully water-cooled sealed furnace shell, high-chromium corundum anti-corrosion lining system
- Closed soft water circulating cooling system (full cooling coverage for furnace body, hood and holders)
- Full-automatic sealed weighing batching & top continuous feeding system
- Constant temperature & pressure molten slag outlet, continuous self-flow launder device
- Furnace bottom iron tapping hole + automatic opening & plugging mechanism (separate iron impurities from fly ash)
- Fully enclosed flue gas collection system with reserved interface for integrated desulfurization, denitrification & dust removal equipment
3. Standard Technical Parameter Table
| Parameter Item | Technical Index | Remarks |
|---|---|---|
| Matched Transformer Capacity | 4000–8000kVA (customizable) | Selected according to annual rock wool output of 20,000–50,000 tons |
| Primary Input Voltage | 10kV / 35kV (optional) | Matches power grid of power plants & hazardous waste disposal parks |
| Secondary Voltage Regulation Stages | 20-stage on-load electric regulation | Adaptable to melting, homogenization & stable slag flow working conditions |
| Max Melting Working Temperature | 1450–1600℃ | Completely decompose dioxins, stabilize viscosity for fiber forming |
| Hourly Molten Slag Output | 6–15t/h | Corresponding to annual rock wool finished product output of 20,000–50,000 tons |
| Maximum Fly Ash Mixing Ratio | 30%–50% | Water-washed dechlorinated fly ash, adjustable proportion on demand |
| Electrode Specification | Φ500–Φ600mm three-phase self-baking electrodes | Large cross-section conduction, uniform temperature without dead zone in molten pool |
| Pitch Circle Diameter | Φ2000–2800mm | Optimize molten pool circulation to offset influence of fluctuating fly ash composition |
| Effective Furnace Volume | 18–40m³ | Large volume buffer tank to guarantee continuous downstream fiber forming |
| Electrode Lifting Control | PLC closed-loop automatic arc stabilization regulation | Response time ≤0.5s, temperature fluctuation within ±10℃ |
| Total Circulating Cooling Soft Water Flow | 110–220t/h | Inlet water temperature ≤30℃, forced cooling for all water-cooled components |
| Continuous Stable Operation Cycle | ≥8000h | Long-period uninterrupted production, reduce shutdown loss |
| Flue Gas Collection Mode | Fully closed low hood negative pressure gas collection | No scattered dust or odor, meets EIA acceptance standard |
| Control Mode | Touch screen centralized monitoring + cloud remote operation & maintenance | Full-process automatic interlock of temperature, current, feeding and cooling |
| Total Equipment Footprint | 160–260㎡ | Modular layout, suitable for new-built or renovated rock wool production lines |
4. Core Product Advantages
4.1 Specialized Customization for Fly Ash, Thorough Harmless Treatment
Optimized molten pool structure targeting high chloride, heavy metals and fluctuating composition of incineration fly ash. Under high-temperature oxygen-deficient melting environment above 1450℃, dioxin destruction rate reaches 99.99%. Heavy metals such as lead, cadmium and chromium are solidified into stable glass body, with leaching toxicity far below national standards, completely solving problems of insufficient landfill capacity and secondary pollution of fly ash.
4.2 Large-Scale Continuous Production, Stable Rock Wool Quality
Large-volume buffer molten pool offsets fluctuation of fly ash raw material composition, long-term stable acidity coefficient and viscosity of molten slag, uniform fiber forming. Tensile, fireproof and thermal insulation performance of rock wool meets national standards. One single furnace can support annual output of tens of thousands tons of rock wool, no need to connect multiple small furnaces, lowering infrastructure and operation cost.
4.3 Low Carbon & Energy Saving, Greatly Reduced Comprehensive Disposal Cost
Using electric energy as heat source instead of traditional coal-fired cupola, no sulfur & nitrogen emission from coal combustion. Equipped with low-loss special transformer and optimized water-cooled short network, power consumption per ton molten slag is reduced by 12%–20% compared with conventional rock wool electric furnaces. Fly ash replaces natural basalt ore to cut raw material cost. Each ton of rock wool reduces carbon emission by about 245kg vs pure ore production line, eligible for carbon emission reduction policy subsidies.
4.4 Fully Sealed Environmental Structure, Easy to Pass Hazardous Waste EIA
Negative pressure fully sealed design for furnace body, feeding port and slag outlet. Smelting flue gas is uniformly collected and connected to matched dust removal & deacidification system. No scattered fly ash dust or odor leakage, perfectly matching environmental approval requirements of hazardous waste comprehensive disposal centers and waste incineration collaborative resource projects.
4.5 Intelligent Full-Automatic Control, Low Labor Dependence
The whole system is equipped with multiple preset special process programs for fly ash rock wool production, one-click switching of working conditions with different fly ash mixing ratios. Automatic alarm and interlock shutdown for water shortage, over-temperature, over-current and excessive flue gas pressure. Support remote cloud data viewing and fault diagnosis, only 1–2 operators required per shift.
4.6 One-Stop Turnkey Complete Service
Shaanxi Chengda provides full-chain services including pre-site survey, fly ash batching process scheme, equipment design & production, whole-set delivery, on-site installation, furnace baking & temperature rising, production line linkage commissioning and operator process training. Complete supporting accessories including tapping machines, water-cooled cables, hydraulic stations and electric control systems are self-produced, no third-party accessories required for customers. The whole machine enjoys 12-month quality warranty with nationwide on-site technical after-sales service.
5. Applicable Raw Materials & Production Line Scenarios
- Water-washed dechlorinated fly ash from domestic waste incineration plants (core raw material)
- Collaborative mixing of industrial solid wastes such as metallurgical slag, fly ash, tailings and waste glass
- Rock wool resource production lines matched with hazardous waste disposal centers & waste incineration power plants
- Large-scale rock wool manufacturing bases of solid waste circular industrial parks & environmental new materials
6. Enterprise Supporting Service Introduction
Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. devotes to R&D and manufacturing of solid waste resource melting electric furnaces, main products include fly ash rock wool furnaces, molten slag conditioning furnaces, rare & precious metal recovery submerged arc furnaces, DC plasma melting furnaces and other complete sets of equipment. We can customize furnace type and power according to customer’s fly ash treatment capacity, target annual rock wool output and plant power supply conditions, providing integrated turnkey engineering services including complete process design, on-site installation & commissioning and lifetime maintenance.
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