Yili Jieneng Technology (Wuwei) Co., Ltd. Boiler Feed Water System Introduction

　　Yili Jieneng Technology (Wuwei) Co., Ltd. Boiler supply water system, the project is located near Daliyuan Industrial Park, Gaoba Town, Liangzhou District, Wuwei City, Gansu Province. Shanghai Lianmai Environmental Protection Equipment Co., Ltd. Complete Boiler Makeup Water System (except for civil works). The boiler make-up water system has a design output of 2×60 t/h. All equipments, process, electrical and instrument installation and commissioning of the company's complete supply system are used. The project adopts a turnkey project model.
 

　　The water supply system of the boiler currently uses urban tap water in Wuwei City (designed according to the requirements of the owner, using the first-class discharge standard water of the sewage treatment plant as the water source), using multi-media filter + self-cleaning filter + ultrafiltration + two-stage reverse osmosis + Mixed bed treatment process. According to the current technological status of the boiler make-up water treatment system, this water treatment process system is mainly divided into three subsystems, ie, a pretreatment system, a desalination system, and a post-treatment system. The pretreatment system is mainly used to remove suspended solids, colloids and organic matters in water, and to ensure that the organic content of the effluent and the pollution index (SDI) meet the requirements of reverse osmosis water infiltration. The desalination system mainly uses reverse osmosis membranes to remove various dissolved solids, ie, salts. The post-treatment system is mainly used to further remove the hardness of the water so that the produced water meets the water quality requirements of the demineralized water.
 

　　Shanghai Limian Environmental Protection Equipment Co., Ltd. overcomes many unfavorable factors such as cold winter construction in the north. After nearly 4 months of unremitting efforts, the project was completed in mid-March 2017. After the system was commissioned in early April, it was officially put into the owner's production system. As of November 2017, the boiler make-up water system operated smoothly, and the output of the secondary reverse osmosis system had accumulated more than 200,000 tons. The indicators of the system were in line with the contractual values, and the conductivity value of the secondary reverse osmosis water was stable at 0.1us. /cm or so.