Serpentine tubes adopt automatic argon arc welding, which are performed X-ray real-time imagingto prevent unqualified welds from entering the bend process. The ZOZEN CNC tube bending system is used for the bending of the serpentine tube.
The production process of liquid dairy products mainly includes: raw milk acceptance, milk cleaning, refrigeration, preheating, homogenization sterilization, cooling, aseptic filling, fermentation, final product storage etc. Steam boiler is used for fermentation, disinfection, drying, etc., Recently, Wuwei Yili purchased 3 sets of ZOZEN 15tph WNS gas-fired boilers.
ZOZEN customized the gas-fired hot water boiler system, and recommended several sets of SZS series natural gas fired hot water boilers, which had the characteristics of sufficient output, high thermal efficiency and stable operation. This series of boilers is designed with longitudinal double drums and "D" type chamber structure.
ZOZEN longitudinal seam welding adopts advanced submerged arc automatic welding technology to ensure welding quality. After the pre-welding treatment, ZOZEN uses automatic argon arc welding technology to complete the butt welding of steel pipes, and performs X-ray real-time imaging of the welds to prevent unqualified welds from entering the next production process. The advanced automatic welding machine completes the automatic welding of the longitudinal seams under the tracking of the photoelectric system, which not only improves the efficiency but also effectively guarantees the welding quality.
Bolivia is the highest average altitude country in the world, local Bolivian companies have higher requirements for boilers than general boilers. As the altitude increases, the atmospheric pressure and the air density decrease accordingly, which adversely affects boiler combustion.
In view of this situation, ZOZEN technical team makes adjustments from the combustion system and exhaust system of boiler, fully considering the influence of low air pressure on boiler body design and combustion. By appropriately increasing the volume of the furnace to extend the residence time of the fuel in the furnace, and the problems of slow fuel burning speed and long burning time are solved.
The chain grate boiler is a grated fired boiler with a high degree of mechanization, the chain grate is the combustion equipment. The working principle is to drive the chain grate to rotate by the reducer, so that the solid fuel can be fired from the front to the end of the boiler, and the combustion efficiency is greatly improved compared with the fixed grate. When the chain is turned to the bottom, the air cooling lower the temperature, which can protect the grates from burning loss.
ZOZEN YLW series thermal oil heater adopts the chain grate as the combustion equipment. It can provide high-temperature heat source at various temperatures below 350℃, achiving low-pressure and high-temperature heating for the processes of dyeing, drying, slashing, printing and dyeing, etc. In addition, this series of thermal oil heater realize precise temperature control through an advanced oil temperature and oil pressure control system that greatly improves heat utilization, which meets the actual needs of textile companies.
WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.
