Dongwha was founded in 1948 as a wood-based manufacturer named Dongwha Enterprise Co., Ltd. It has established overseas production bases in Malaysia, Vietnam, Australia and Finland. Among which, the Finland plant produces wide range of different types of impregnated papers. The thermal oil heater is purchased to provide heat source for an RTO waste gas treatment system introduced by Dongwha Finland.
This time, Shanghai High-New Science & Technology Development Co., Ltd. selected the ZOZEN YQW series gas-fired thermal oil heater and supporting waste heat boiler for its project in Ethiopia. To ensure the hot-pressing quality of the wood-based panels, the temperature of the hot-pressing board surface should be as uniform as possible. Therefore, High-New Science & Technology set clear requirements that the oil temperature and operation of the thermal oil heater should be stable. This series of boiler adopts a waste heat boiler to recover high-temperature flue gas. The team generated through the heat exchanges of the waste heat boiler can heat the mill, rubber making machine and other facilities that require steam heat source. The waste heat boiler not only further improves the fuel utilization, but also improves the overall thermal efficiency of the heater to more than 95% and reduces the operation costs. In addition, many advanced facilities independently developed by ZOZEN provide a
Wood processing is molding the wood under the action of a mould after being softened, bending the curve shape that the design requires, the following procedure is drying and shaping. In this case, wood cannot be heated and shaped by fire, therefore, heating and softening the wood by steam has been the only choice. Jiangsu Hongya Wood Industry Co., Ltd. is mainly engaged in producing, processing and selling wood and wood products. There are a mass of wood pellet and wood chip residuals during the processing; Hongya Wood has always been insisting on making good use of waste materials and using these wood residuals as boiler fuel. Due to the high moisture and low calorific value of the wood pellets and wood chips, the problems of low combustion efficiency, ash accumulation and abrasion are inclined to happen. The new generation biomass-fired boiler, which is designed and developed by ZOZEN, has optimized the design of the feeding hopper, the length and width of the fire grate, rotary spee
Thermal oil heater provides heat energy for the hot pressing and drying in the manufacturing processes of wood products. The end user of this project is a local wood product manufacturer in Krasnoyarsk Krai. During hot pressing section, the temperature needs to reach 220°C-250°C. Furthermore, hot pressing section consumes 90% of the total heat source amount. In this case thermal oil heater is really suitable for this manufacturer, which can reach 350°C with a low pressure. The Kovrovskie Kotly Ltd in Russia, which forms alliance with ZOZEN, recommends ZOZEN’s thermal oil heaters for this wood product manufacturer. Taking all the facts into consideration, ZOZEN provides YLW series biomass-fired thermal oil heater for the manufacturer. This kind of thermal oil heater can be also used for wooden furniture and artificial board plants where need high temperature for hot pressing.
