hot selling high efficiency 20t coal steam boiler, ZOZEN possesses the A-grade boiler manufacturing licence

ZOZEN Boiler (Wuxi) is a designated manufacturer of boilers and pressure vessels approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China. ZOZEN holds the A-grade boiler and BRⅡ-grade pressure vessel manufacture licenses, ASME “S” and “U” certificates with steel seals and fully passes the ISO9001:2000 international quality system certification.

In March of 2019, ZOZEN Boiler successfully passed the French BV certification and became an enterprise with an in-depth factory inspection on the Alibaba international station. Through the cooperation with French BV certification, Alibaba can comprehensively studied and judged the company’s product capability, quality control capability, R&D capability and trade capability. It shows that ZOZEN Boiler has a strong comprehensive strength and all indicators fully meet the certification standards for boiler exports.

hot selling high efficiency 20t coal steam boiler, ZOZEN’s molten salt boiler is a kind of boiler that uses a mixture of molten potassium nitrate and sodium nitrite as heat transfer medium. It is a kind of straight-flow special industrial boiler that uses a molten salt circulating pump to force liquid phase circulation, transfer the heat energy to heating equipment and then return to the boiler for further heating circulation. It is highly-efficient and energy-saving with a thermal efficiency of over 95%, and it also can obtain an ultra-high working temperature of 350-580℃ under a lower operating pressure. The whole boiler system is mainly composed of molten salt circulation system, combustion system and heating system.

ZOZEN hot water boilers have wide fuel adaptability of natural gas, coal gas, biogas, bituminous coal, anthracite, lignite, various biomass fuels and so on; they are also equipped with the advanced control system with high level of automation and convenient operation. In addition, ZOZEN takes the lead to customize the boiler solutions for customers, which can realize the energy saving and consumption reduction, and lower the cost of customers. With high cost performance, ZOZEN hot water boilers are widely favored by domestic customers and are exported to Mexico, Russia, Australia and other regions, hot selling high efficiency 20t coal steam boiler.

After the raw materials are transported to the workshop, steel plates will be precisely cut by the plasma cutting machine according to design drawings. The cut steel plates after finishing three processes of rust removing, edge milling and chamfering will be rolled into workpieces for making drums by this advanced four-axis rolling machine. ZOZEN’s CNC rolling machine can complete the rolling of a drum shell within 90 seconds with a largest thickness of 100mm, an out-of-roundness and angular deviation within 1mm. Its advantages include the predeformation and cylindrical rolling of two plate ends via one-time load, arc work, shaping and leveling work on the sheet metal. It has the effects of direct pre-bending, saving time and materials to ensure the smooth progress of next welding process and further ensure the welding quality.

As one of the project cores, the gas-fired boiler with a rated pressure of 3.82 MPa and a rated steam temperature of 450°C is a mid-temperature and mid-pressure boiler, which puts forward high requirements for the manufacturer’s comprehensive strength. Facing similar competitors, ZOZEN Boiler with rich project experience and excellent product performance provided a satisfactory gas-fired boiler solution for Changfeng Coking and successfully obtained the supplier qualification.

hot selling high efficiency 20t coal steam boiler, With the rapid development of the aerated concrete industry, ZOZEN air preheating type gas-fired boiler has also been widely used to provide solid support for the industry development. It has always been the development goal of ZOZEN Boiler to produce boiler products that are highly compatible with various industries. In the future, ZOZEN Boiler will continue to move towards this goal and bring users more satisfactory boiler solutions.