solid fuel firing boiler, ZOZEN SZS series boiler adopts the flue gas backflow technology

Recently, as a leading enterprise in the domestic industrial boiler manufacturing industry, ZOZEN has successfully passed the examination of Jiangsu Market Supervision and Administration Bureau and has acquired the permission to engage in the installation, maintenance and reconstruction project of pressure-bearing special equipment with a sub project of boiler installation (A grade), which is valid until the August 7, 2024.

The base of ZOZEN DZL series coal-fired steam boiler adopts the separate air chambers to make the fuel on the grate is in a good combustion state. The air dampers design further ensures the sufficient fuel combustion and improves fuel utilization. In addition, DZL series coal-fired boiler realizes the stepless speed regulation of the grate via the advanced electrical control. It also has the functions such as absolute rating alarm and interlock protection to ensure the safe operation of the whole boiler system.

Gas fired (oil fired) boiler knowledge training

PT.Mikie Oleo Nabati is an palm oil company in Indonesia. Steam boilers are used for refining, bleaching, deacidification, deodorization, fractionation and other processes in the palm oil production. The biomass-fired boilers the company ordered from ZOZEN can perfectly resolve the problems of scaling, abrasion, burning front arch and feeding hopper. The thermal efficiency of ZOZEN’s biomass-fired boilers can reach above 88%, solid fuel firing boiler.

The biomass-fired boilers produced by ZOZEN have wide fuel adaptability to a variety of fuels such as biomass pellets, wood chips, palm shells, straws, etc. According to different fuel characteristics, ZOZEN technicians optimize the design of feed hopper, width and length of grate, speed of grate reduction gears, ratio of primary and secondary air, position and direction of secondary air outlet to ensure the highly-efficient, energy-saving and stable operation of boiler, solid fuel firing 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, solid fuel firing boiler.

ZOZEN Boiler deeply knows that enterprise’s focus is to develop products which are qualified and can meet the demands of customers. It is a mistake to only focus on the product quantity instead of product itself. This kind of enterprises will suffer in the industry changes. In order to keep the core competitiveness, ZOZEN innovates to make its products meet the market demands quickly. Meanwhile, combining with the rich project experience, ZOZEN puts forward EPC turnkey project to help customers improve the project construction efficiency. Under great efforts, ZOZEN has built an outstanding reputation in the overseas market.