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Syed Rashid Ahmed Butt

Shaanxi 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.
Aboubacar

After 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!

Contact Person : Du

Phone Number : 13991381852

Water-Cooled Furnace Cover

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,D/P
Supply Ability	Complete production supply chain, supply on time, and meet quality standards

Product Details

Installation	Requires Technical Skill Or Professional Service	Walling Anchor	Flexible Walling Anchor For Tower Crane
Life	90-120 Days	Usage	For Repair And Maintenance
Voltage	220V	Category	Replacement Components
Elongation	<1.5%	Warranty	Typically 6-12 Months
Price Range	Varies By Part And Brand	Country Of Origin	Shaanxi, China
Highlight	water-cooled furnace cover , furnace cover spare part , water-cooled furnace replacement

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Product Description

Water-Cooled Furnace Cover

1. Product Overview

The water-cooled furnace cover is a core top sealing and cooling component specially matched with submerged arc furnaces, industrial silicon furnaces, ferroalloy furnaces, calcium carbide furnaces, yellow phosphorus furnaces and closed refining furnaces. It replaces traditional integral refractory furnace tops, adopting built-in circulating water forced cooling structure to bear ultra-high thermal radiation above 1000℃ inside the furnace.

Traditional refractory furnace tops suffer from frequent spalling, cracking and burnout under long-term high-temperature flue gas erosion, requiring regular shutdown maintenance and causing heavy production loss. Our modular water-cooled furnace cover effectively controls surface temperature below 200℃ through internal circulating water heat exchange, realizes full closed smoke collection, protects upper electrode system, feeding pipes and short network equipment, extends furnace service life, and supports flue gas recycling for power generation, widely applicable to 6,300kVA–63,000kVA full-series metallurgical electric furnaces, being standard supporting equipment for energy-saving and environmental upgrading of smelting plants.

2. Main Product Types & Structural Classification

2.1 Membrane Wall Water-Cooled Furnace Cover (Mainstream Standard Model)

Structure: Welded by dense 20# boiler steel tubes to form an integrated membrane wall cooling channel; anchor nails welded on the fire-facing surface with 30–50mm thick wear-resistant refractory castable lining poured
Layout: Split into central electrode cover module and peripheral edge cover modules, connected by high-temperature resistant bolts
Matched furnaces: 12,500–63,000kVA large & medium closed submerged arc furnaces, industrial silicon furnaces
Advantages: High structural strength, uniform cooling effect, excellent air tightness, low flue gas leakage rate, long service life synchronized with furnace body
Application: High environmental standard smelting workshops with flue gas recovery

2.2 Box Tank Water-Cooled Furnace Cover (Light-Duty Small Furnace Model)

Structure: Sealed cooling water tank welded by steel plates with independent labyrinth circulating water channels inside each tank body
Matched furnaces: 6,300–16,500kVA small & medium ferroalloy, calcium carbide furnaces
Advantages: Low manufacturing cost, lightweight, convenient on-site disassembly and overhaul, flexible transformation for old furnaces
Application: Open & semi-closed small-capacity electric furnaces with low heat load

2.3 Integrated Intelligent Water-Cooled Furnace Cover (High-End Fully Enclosed Type)

Upgrade configuration: Built-in temperature monitoring sensor, water flow alarm interface, automatic pressure relief valve, dust cleaning manhole, reserved sampling & temperature measuring holes
Supporting facilities: Matching water inlet/outlet manifold, heat dissipation expansion tank, high-temperature sealing asbestos pad
Matched furnaces: 33,000–63,000kVA extra-large fully closed furnaces, intelligent unmanned smelting production lines
Advantages: Real-time monitoring of cooling water temperature & flow, automatic overheat alarm, complete smoke collection, ultra-low emission

3. Core Structure & Working Principle

The complete water-cooled furnace cover assembly consists of 5 major parts: cooling module body, circulating water channel, refractory protective layer, reserved process holes and water supply & drainage manifold system.

Water-Cooled Module Main Body

Adopt boiler special steel with excellent heat conduction and pressure resistance; split modular design for easy transportation, installation and local replacement of damaged parts without overall disassembly.
Closed Circulating Water Channel

Independent separated flow channel design avoids local dead water overheating; cooling water continuously circulates inside to take away massive radiant heat from furnace chamber, stabilizing furnace cover surface temperature within safe range.
Refractory Wear-Resistant Lining Layer

Anchor nail + castable composite lining structure isolates direct scouring of high-temperature smoke and molten dust, prevents steel plate oxidation burnout, reduces heat loss and prolongs service cycle.
Reserved Multi-Functional Process Holes

Pre-set electrode penetration holes, feeding holes, smoke exhaust holes, pressure relief holes, overhaul manholes, temperature measurement & sampling holes according to furnace layout, meeting all continuous smelting process demands.
Water Inlet & Outlet Manifold System

Equipped with integrated water distribution header, matched with flow monitoring and overflow protection devices; all connecting pipelines adopt high-temperature resistant sealing flanges to prevent water leakage at joints.

4. Core Product Advantages

4.1 Ultra-Long Service Life, Cut Shutdown Maintenance Cost

Forced water cooling avoids high-temperature burnout and refractory peeling issues of traditional furnace tops; service life matches the whole furnace cycle, eliminating frequent shutdown for furnace top repair and refractory replacement, greatly reducing downtime loss and refractory consumption cost.

4.2 Good Sealing Performance, Energy Saving & Environmental Protection

Modular splicing with high-temperature resistant sealing pads realizes full furnace sealing, effectively collecting high-concentration CO flue gas for recycling power generation, improving resource utilization; reduces smoke overflow and dust escape, meeting ultra-low emission environmental protection standards.

4.3 Comprehensive Protection of Upper Furnace Equipment

Low surface temperature of furnace cover blocks high thermal radiation, effectively protecting electrode holders, short network water-cooled cables, feeding pipes and other top core equipment from high-temperature aging and burnout, lowering spare parts replacement frequency.

4.4 Stable Furnace Condition & Balanced Smelting

Effective top heat insulation reduces furnace heat loss, stabilizes internal furnace temperature field, uniformizes melting reaction, decreases fluctuation of alloy product composition and improves finished product qualification rate.

4.5 Modular Design, Easy Installation & Retrofit

Split module structure is convenient for container transportation and on-site hoisting; customized size, hole layout and cooling flow can be designed for both new furnace supporting and old furnace energy-saving reconstruction, no large-scale civil modification required.

4.6 Safe Operation with Multiple Protection

Optional temperature & water flow real-time monitoring module, automatic alarm when water shortage or overheating occurs; built-in pressure relief holes prevent furnace chamber overpressure explosion, greatly improving overall workshop operation safety.

5. Applicable Industries & Furnace Capacity Range

Ferroalloy smelting: Ferrosilicon, silicomanganese, ferronickel, ferrochrome, ferrovanadium submerged arc furnaces
Chemical smelting: Industrial silicon, calcium carbide, yellow phosphorus melting furnaces
Non-ferrous metallurgy: Copper slag, aluminum ash, lead-zinc closed refining electric furnaces
Capacity coverage: 6,300kVA, 12,500kVA, 16,500kVA, 25,000kVA, 33,000kVA, 45,000kVA, 63,000kVA full specification metallurgical furnaces

6. Optional Supporting Configurations

Real-time water temperature & flow online monitoring alarm system
High-temperature resistant integral castable wear-resistant lining
Automatic pressure relief safety valve set
Integrated water supply & drainage manifold with filter
Dust-proof overhaul manhole and quick-opening sampling door
Complete high-temperature sealing pads and hoisting accessories

7. Full-Lifecycle Service Guarantee

Custom non-standard design: Optimize module split, hole layout and cooling water flow according to furnace diameter, electrode layout and heat load
On-site technical survey: Professional engineers provide furnace top matching overall solution
Strict factory inspection: Hydraulic pressure leakage test, thermal load simulation test and welding flaw detection before delivery
After-sales support: Whole module warranty, long-term supply of spare modules, remote technical guidance and nationwide on-site installation service

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Water-Cooled Furnace Cover