coal wood boilers, The threaded smoke tube of ZOZEN WNS series gas-fired boilers can effectively improve the heat transfer efficiency

Since the establishment in 1988, ZOZEN Boiler has had a history of development for more than 30 years. In recent years, ZOZEN Boiler has devoted itself to the three fields of green and energy saving, cross-border e-commerce, scientific research and innovation to become a benchmark in the industrial boiler industry and accelerate its pace to enter the international industrial boiler market, coal wood boilers.

High straightness of the rolling machine ensures the smooth welding of the next process and guarantees welding quality

Recently, three sets of customized ZOZEN gas-fired boilers have been delivered after passing the quality tests. The boilers will enter the installation phase in late March when arriving at the UYUNI port.This project is located at the Uyuni Salt Flat, the largest salt flat in the world with the largest lithium reserves. Once the installation is completed, the boiler project will provide a reliable heat source for the new plant of YLB and assist the development and commercialization of salt-flat resources, coal wood boilers.

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.

The main advantage of circulating fluidized bed boilers lies in the direct control of pollutant discharge during the combustion process. This type of boiler adopts low-temperature combustion technology. The furnace temperature of a conventional boiler is as high as 1400-1500°C during combustion, while the furnace temperature of a circulating fluidized bed boiler is in the lower range of 800-900°C, which can reduce the generation of NOx; meanwhile, SOx can be removed during fuel combustion by adding low-cost limestone in the circulating fluidized bed boiler.

ZOZEN Boiler has set up seven process stop points that are material re-inspection, material inspection number transfer, plate welding test, heat treatment, pre-expansion before welding, flaw detection inspection, hydrostatic test, which are inspected by seven responsible engineers. If any link is unqualified, it will not be able to proceed to the next process, which ensures that each ZOZEN boiler has the high quality, coal wood boilers.

Steam boilers are used to provide steam in bleaching, concentration, drying and other production process of paper industry. Thai Development Industrial Paper Co. , Ltd. is one of large paper mill in Thailand. With the expansion of business and scale, the paper mill had to introduce extra sets of coal-fired steam boilers. ZOZEN supplied 15tph SZL series chain grate steam boilers for the company. This series of steam boiler features wide wide coal applicability and higher combustion efficiency.

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, coal wood boilers.