During the construction process of Coal Mine Construction Structure, a large amount of steel pipes and supporting steel structures are required to build the main shaft (vertical shaft), excavate the main roadway, divide the mining area, and establish the working face. The steel structure of coal mines is usually used for mine support, which has high requirements for the performance of steel and the quality of welding. In the past few years, Xinyue has provided drawing splitting, material supply, welding finished products, pre installation, and on-site guidance for multiple coal mine projects both domestically and internationally, accumulating rich experience in the supply of coal mine steel structures.
Coal Mine Construction Structure is a structure composed of steel materials and is one of the main building structure types.The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plate. welding, bolts or rivets are usually used between each component or component.
Because of its light weight and simple construction, it is widely used in industrial plants, municipal infrastructure construction, electric power, Bridges, offshore oil engineering, aerospace and other industries. Including bridge structure, plant roof beam column structure, bridge steel box girder(Steel Module), deck longitudinal beam, coal mine structure tower and so on.
Xinyue’s welding team has professional international welding capabilities, and has undertaken projects that meet various international welding standards, including ASME BPVC IX, AS/NZS 1554.1, AWS D1.1, D1.5, D1.6, D1.3, EN15164 and so on.
In order to solve the rust prevention on the surface of steel structure, we can also provide shot blasting and painting treatment on the surface of steel structure, including epoxy paint, galvanizing and other processes to extend the service life of steel structure and improve the service performance.
The main inspection methods of welding are: magnetic particle inspection(MT), penetration inspection(PT), UT testing , RT testing, etc.
Please contact us for more information
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Projects |
Products |
Surface treatment |
Standard and Dimension |
Welding Structure |
|---|---|---|---|---|
| Qatar Telegraph Power Transmission Pole | Power Transmission Pole | Mini 95um Hot Dip Galvanzed | API 5L PSL1 Gr.B / 219.1*8.2 MM*11M | Main Pipe Welded plate with punching holes on pipe body by CNC machine, the ends of the pipe welded with plate with punching holes, all the holes need threaded and connected with bolts as required size |
| Ryazan's Oil Refinery Project | Steel Spool (Tee with flanges ) | Black Coating | ASTM A312 TP304L, ASTM A182 F11, ASTM A182 F304L；700x700 DN 28"x0,562"/ 28"x0,562, 500x700. DN 28"x0,562"/ 20"x0,406", 500x700. DN 28"x1,062"/ 20"x0,678’’ | Tee Pipe welded with flanges |
| Australia Brisbane Ferry Piling Project | SSAW Steel Pipe, LASW Steel Pipe, Stainless Steel Plate | DFT 1000 um with painting Interzone954, Intergard 269, Interseal 670HS |
AS/NZS 1163, AS/NZS1554.1, AS/NZS2207； Pipe OD 610--800 MM*39M , SS Plate 400*10 MM*15 M |
Welding 8 pcs Grade SS316 plate outside of the SSAW in 15 meter length; Full penetration weld join the SSAW main pipe with the LSAW pile shoes |
| Seawater Desalination Plant (TWRP C2B)\ | Steel Pipe , Tee, Flange, Stub, Plate |
External coating: Refer to specification G1.5FT.36, SYSTEM 22；Internal Lining: Fusion bonded epoxy lining 500 microns as per AWWA C213 |
API 5L X42/Q355B; EN10253-1 / EN1092-1 Q355B; ASTM A312 316L； DN80MM - 1800MM |
Steel plates,steel pipes, pipe fittings and flanges are welded to each other into special-shaped steel structures and prefabricated parts |
| Vietnam Coal Mining Construction Project | Mine Shaft Steel Structure include Pipe ,Plates, Angle, H beam, SHS | Hot Dip Galvanizing / Zinc Rich Epoxy Primer +Epoxy mica iron intermediate paint +Polyurethane topcoat |
EN10029, Gost 8732, EN10025； OD377*12 MM; SHS200x200x12 MM; IPE330 |
Welded into Shaft steel structure, Cross Beams, Box Beams and ect. |
| Curacao Hotel Foundation Project | SSAW Steel Pipe Welded With Conical Tips | External with epoxy primer of 50microns for only anti corrosive purpose during freight |
ASTM A252 / ASTM A36 / ASTM A53 GR B； DN 300, DN 400, DN500 , Thickness 12mm, Length 8m |
Main Pipe one end welded with conical tips(cap) for piling driving |
