Horizontal Membrane Water Wall Slag Cooler with Full Membrane Water Wall, Horizontal Layout, and Low-Speed Rotation for Efficient Waste Heat Recovery
The Horizontal Membrane Water Wall Slag Cooler is a high-efficiency waste heat recovery and cooling equipment specially developed for circulating fluidized bed boilers, biomass power plants, waste incineration furnaces and coal-fired industrial boilers.
Different from traditional tube-type slag coolers, it adopts an integrated full membrane water wall cylinder structure, with the entire barrel wall serving as the heat exchange surface. High-temperature furnace slag directly contacts the water-cooled membrane wall to realize rapid cooling, meanwhile efficiently recovering high-grade waste heat from hot slag. It integrates slag conveying, cooling and waste heat utilization as one unit, solving the common defects of insufficient heat exchange, slag blockage, water leakage and short service life of conventional slag coolers.
- Full Membrane Water Wall, Ultra-Large Heat Exchange Area: The whole rotary cylinder is composed of welded membrane water wall panels, forming a seamless enclosed cooling channel. The effective heat exchange area is 2-3 times larger than multi-tube slag coolers of the same specification.
- Horizontal Layout + Low-Speed Rotation, Anti-Blocking & Low Wear: Horizontal installation design with low rotating speed (0.5-6 rpm adjustable by VFD). Slag moves forward without built-in spiral blades, reducing friction and abrasion.
- All-Welded Membrane Structure, Zero Water Leak Risk: Fully welded without gaps, avoiding tube-plate welding leakage problems. Extends cylinder body service life by more than double.
- High-Temperature Wear-Resistant Rotary Joint: Alloy static-dynamic double sealing rotary joint with built-in ash return structure for dust-free operation.
- Integrated Base, Easy Installation & Simple Maintenance: Mounted on integrated steel base with split flange design for easy disassembly and inspection.
- Complete Safety Interlock Protection System: Equipped with cooling water flow interlock, low water pressure alarm, overtemperature protection and emergency pressure relief valve.
- High-Grade Waste Heat Recovery: Cooling water outlet temperature reaches 85-95℃, reducing coal consumption for heating
- High Value Reusable Dry Slag: Cooled dry slag below 100℃ can be used as raw material for cement, road aggregate and energy-saving bricks
- Low Operation Cost: Low power consumption, low cooling water consumption, and few vulnerable parts
- Environment-Friendly Operation: Totally closed operation, no steam overflow, no dust flying, avoids sewage pollution
| Item | Standard Parameter |
|---|---|
| Rated Slag Processing Capacity | 1-20 t/h (customized for large tonnage) |
| Inlet Hot Slag Temperature | ≤950℃ |
| Outlet Cooled Slag Temperature | ≤100℃ |
| Cooling Water Inlet Temperature | ≤45℃ |
| Cooling Water Outlet Temperature | 80-95℃ |
| Working Water Pressure | 0.4-0.6 MPa |
| Cylinder Rotation Speed | 0.5-6 rpm (VFD stepless adjustment) |
| Drive Motor Power | 1.5-7.5 kW |
| Maximum Allowable Slag Lump Size | ≤100 mm |
- Circulating Fluidized Bed (CFB) thermal power plants
- Biomass power generation & household waste incineration power plants
- Coal chemical industry, lime kilns, metallurgical furnaces
- Industrial coal-fired heating boilers, gangue power stations
Our horizontal membrane water wall slag cooler has passed thousands of industrial boiler operation verifications, with mature welding technology and strict pressure vessel quality standards. We provide personalized customization of equipment size, processing capacity and automatic control system according to your boiler operating parameters.
Choose our membrane wall slag cooler to achieve triple benefits of energy saving, emission reduction and economic profit, helping your power plant realize green low-carbon and efficient production. We supply complete technical drawings, installation guidance and global after-sales service support.
Subject: High Efficiency Horizontal Membrane Water Wall Slag Cooler for CFB Boiler Waste Heat Recovery
We are a professional manufacturer of energy-saving slag cooling equipment, and our star product Horizontal Membrane Water Wall Slag Cooler is widely applied in thermal power, waste incineration and biomass energy industries worldwide.
Different from traditional multi-tube slag coolers, our machine adopts an integrated full membrane water wall cylinder as the heat exchange body, featuring much larger heat exchange area, zero water leakage risk and longer service life. The horizontal low-speed rotating design avoids slag blockage and reduces abrasion effectively.
- Integral welded membrane wall, no tube leakage, stable long-term operation
- Horizontal layout without internal spiral blades, anti-clogging, low maintenance
- Recover high-temperature hot water for waste heat utilization, save coal cost
- Totally closed dry slag discharge, no dust or sewage pollution
- VFD speed regulation, adjustable slag capacity to match boiler load
- Complete safety interlock system to prevent dry burning accidents
- Customizable size, capacity and automatic control system
The cooled dry slag can be recycled as cement raw material to create extra revenue. We offer full technical support, installation manuals and overseas after-sales service. Please send your boiler slag discharge parameters for our customized quotation and solution!
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