A Semi-Gantry Crane is a Gantry Crane with only one side supporting leg, and the other side is supported on the horizontal structure such as workshop wall. The leg side is traveling on rail tracks laid on the ground, while the other side is traveling on the tracks on the supporting structure.
The main beam of a semi-gantry crane can be a double-girder or a single girder, and the hoisting mechanism can be an Wire Rope Electric Hoist or a hoist/winch on a trolley. The semi-gantry crane is usually used outdoors, also indoors at a large workshop for handling working pieces, bulk mateirals, machines, steel products, scraps, containers, etc.
Capacity: 1t - 500t or custom
Span: 6m - 32m or custom
Lift height: 6m - 32m or custom
Work duty: A4, A5, A6 6m - 32m or custom
Sling device: hook, grab, magnet, disc, spreader or special device for special industry
Packing: wooden case, rain cloth, reinforced bar, etc.
Features of Semi-Gantry Crane:
1. All steel plates are processed by pretreatment production line: Shot blasting – Painting – Paint Drying, Eliminate stress in steel plate, and increase Adhesion between paint and steel plate and anti-corrosion.
2. Adopt Germany Messer plasma CNC cutting machine to cut steel plate with high efficiency and accuracy (±1mm).
3. Rolling drum with seamless steel with pressure 1250t. Auto welding and heavy duty CNC lathe for processing.
4. Double gun gantry submerged arc welding for end beam processing.
5. Welding robot for main beam welding, MAG welding for inside seam welding, Ar+CO2 Mixed protective gas.
6. X-ray flaw detection, Ultrasonic flaw detection for welding seam.
7. High temperature quenching and quenching and tempering treatment for wheels to release internal stress.
8. Annealing furnace (1000mm*4000mm*4000mm) for annealing of trolley, rolling drum, balancing beam, wheel group and spreader.
9. Anti-sway system can be equipped according to customers' requirement.
Semi-Gantry Crane Semi Gantry Crane,Semi-Gantry Crane,Semi-Gantry Crane Single Girder,Single Girder Semi Gantry Crane Henan Weihua Heavy Machinery Co., Ltd. , https://www.hoistcrane.nl
The world-famous coal chemical leader Celanese has a leading technology for the production of coal-based C1 chemicals. The comprehensive project for coal-based methanol and carbon monoxide to acetic acid and its derivatives built in Nanjing will be put into operation in 2007. The comprehensive project uses coal-based methanol to produce 600,000 tons of acetic acid per year, and the capacity of vinyl acetate monomer is 300,000 tons per year. Other products include acetic anhydride and vinyl acetate derivatives.
Dow Chemical Company is seeking to use Chinese coal to produce olefins and their derivatives. The company recently cooperated with China Shenhua Group and plans to build a super-large coal-to-olefins project in China. The site of the project will be selected in Baotou, Inner Mongolia, which is rich in coal reserves, industrial water supply and product distribution in China. The total investment of the project is approximately 11.7 billion yuan, including the construction of 1.8 million tons/year of methanol, 600,000 tons/year of methanol to olefins, 300,000 tons/year of polyethylene, 310,000 tons/year of polypropylene, and 94,000 tons/year of butane 14,000 tons/year of ethane and propane. The entire project consumes 3.45 million tons of raw coal and 1.28 million tons of fuel coal. The coal is supplied by Shenhua Group Wanli Coal Mine.
Eastman Chemical also intends to introduce its coal gasification technology mainly to Asia. The company’s North American facility already uses 25% coal as the fuel and raw material gasification technology to produce C1 chemicals. The next step is to seek development in Asia.
Foreign commentators believe that the Chinese government is implementing new energy policies that use coal resources to make up for the increasingly scarce domestic demand for oil and gas supplies. The above-mentioned coal chemical project construction is exactly in line with the requirements of China's implementation of the coal energy policy. China’s petrochemical industry is increasingly relying heavily on imported naphtha feedstocks. If the development of coal to olefins is to achieve industrial production, it will, to some extent, reduce the excessive dependence of China’s ethylene industry on petroleum resources and relieve the strain on China’s oil resources. Positive significance.
American Chemical Company appeared in China Coal Chemical Project Celanese, Dow Chemical, and Eastman compete to show their skills
The soaring oil and natural gas prices in North America have caused the petrochemical products originally concentrated in the Gulf of Mexico to lose their original market competitiveness. At the same time, the new energy policy that China is pursuing has created a good opportunity for the development of coal chemical projects. In this context, some chemical companies in the United States have begun to take action in China to achieve industrial production of coal-to-olefins and C1 chemicals.