Product Overview
The Huanuo DZH Series Industrial Biomass/Coal-Fired Hand-Fed Hot Water Boiler is designed to provide reliable and economical hot water for industrial and commercial heating applications. Compatible with various solid fuels, including bituminous coal, anthracite, biomass pellets, and wood chips, it combines a robust boiler structure, optimized heat transfer surfaces, and a practical combustion system to support stable heating performance. Its integrated design incorporates water circulation optimization, thermal stress reduction, and primary dust separation features, helping improve operational reliability, reduce maintenance requirements, and control overall operating costs.
Product Structure Drawing
Key Advantages
Features an optimized return-water arrangement designed to improve water circulation in high-temperature zones, helping reduce localized overheating and the risk of water-wall damage during abnormal operating conditions.
Combines an arched tube-plate design with an optimized tube arrangement to accommodate thermal expansion, reduce localized thermal stress, and improve structural durability.
Optimizes the arrangement of water tubes in high-temperature areas to improve heat removal, minimize stagnant-water zones, and support reliable long-term operation.
Uses threaded smoke tubes to promote flue-gas turbulence and improve convective heat transfer, helping reduce heat loss and limit ash accumulation on heat-transfer surfaces.
Utilizes internal flue-gas turning passages and strategically arranged smoke outlets to separate some larger fly-ash particles before the flue gas enters downstream dust-collection equipment.
Features a compact boiler layout designed to make efficient use of available boiler-room space, helping reduce installation requirements and associated civil construction costs.
Typical Applications
Cooking、Pasteurization、Sterilization、Cleaning、Evaporation、Drying
Dyeing、Bleaching、Washing、Sizing、Printing、Drying、Finishing
Reactor Heating、Distillation、 Evaporation、Drying、Stripping、Tank Heating 、Cleaning
Pulp Cooking、Evaporation、Paper Drying、Starch Preparation、Coating、Tank Heating、Cleaning
Rubber Vulcanization、Compounding、Mold Heating、Process Water Heating、Equipment Cleaning、Drying
Space Heating、Domestic Hot Water、Campus Heating、Public Building Heating、Industrial Heat Supply、Peak-Load Support
Technical Specifications
| Item / model | DZH0.35-0.7/95/70-All | DZH0.7-0.7/95/70-All DZH0.7-1.0/95/70-All | DZH1.4-0.7/95/70-All DZH1.4-1.0/95/70-All | DZH2.8-0.7/95/70-All DZH2.8-1.0/95/70-All | |
| Rated thermal power(MW) | 0.35 | 0.7 | 1.4 | 2.8 | |
| Rated pressure (MPa) | 0.7 | 0.7/1.0 | 0.7/1.0 | 0.7/1.0 | |
| Rated supply water temperature (°C) | 95 | 95 | 95 | 95 | |
| Rated Return water temperature (°C) | 70 | 70 | 70 | 70 | |
| Heating area(m²) | Body | 21.31 | 33 | 50 | 93 |
| Economizer | 8.28 | 15 | 30 | 55 | |
| Effective area of grate( m² ) | 1.28 | 2.1 | 3.36 | 5.2 | |
| Fuel type | II class bituminous coal, low leave heat value Q ≈ 21000KJ/Kg | ||||
| Fuel consumption ( kg/h) | ~ 76 | ~ 150 | ~ 301 | ~ 602 | |
| Exhaust gas temperature (°C ) | 135 ~ 145 | ||||
| Thermal efficiency ( % ) | 83 ~ 84 | ||||
| Weight of biggest part for transportation ( t ) | 8 | 12 | 15 | 22 | |
| Overall dimension part for transportation L W H (mm) | 3228 × 2000 × 2656 | 4108 × 2200 × 2915 | 4700 × 2300 × 3270 | 5600 2550 3563 | |
