Recently, Jiangsu Shuangliang New Energy Equipment Co., Ltd. completed the pre-assembly of the first heat combined feed heat exchanger produced by Zhejiang Satellite Petrochemical's 450,000 tons/year propane dehydrogenation project.
The heat exchanger diameter of 2.7 meters, is a typical large-scale deep hole welding high temperature heat exchanger, a single heat exchange tube length of 21 meters, a total length of 29 meters, weighs 200 tons, the main material S30409 stainless steel, heat exchange tube and tube sheet connection For deep hole welding. Deep-hole welding adopts sophisticated imported equipment. After repeated tests and demonstrations, the technicians determine the precise welding parameters, strictly control the welding seam formation, and conduct radical helium leak detection to ensure the welding quality.
The small Loader is a kind of earthwork construction machinery widely used in construction projects such as roads, railways, hydropower, construction, ports, mines, etc. It is mainly used
Small loader
Small loader
It is used for loading and unloading bulk materials such as soil, sand, lime, coal, etc. It can also be used for light shoveling and digging operations on ore and hard soil. Different auxiliary working devices can also be used for bulldozing, lifting and other materials such as wood loading and unloading operations. In the construction of roads, especially high-grade highways, small loaders are used for filling and excavating roadbed works, asphalt mixtures and aggregate and loading of cement concrete yards. In addition, it can also carry out operations such as pushing and transporting the soil, leveling the ground, and towing other machinery. Because the small loader has the advantages of fast working speed, high efficiency, good maneuverability, and light operation, it has become one of the main types of earth and stone construction in engineering construction.
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