Searching for Longwall Roof Support information? Find all needed info by using official links provided below.
https://www.cat.com/en_US/products/new/equipment/underground-longwall/roof-supports/18346354.html
The Longwall Top Coal Caving (LTCC) roof support allows mining to a total seam height of more than 10 m (33 ft) by using a longwall shearer to cut the bottom 2.8-3.0 m (9.2-9.8 ft) and then caving the top coal behind the roof supports onto a rear AFC. This type of longwall is in service for example at a mine in the Hunter Valley, Australia.
https://mining.komatsu/product-details/powered-roof-supports
Joy powered roof supports, for high-capacity longwall applications, are custom designed to meet your exacting cycle and operating requirements: Ratings up to 1,750 tonnes Widths of 1.5, 1.75, and 2.05 meters Heights from 0.8 to 7.8 meters
https://www.cat.com/en_US/products/new/equipment/underground-longwall.html
Cat® customized systems for longwall mining range from hydraulic roof supports and automated plow systems to shearers, face conveyors and roof support carriers. This site uses and sets "cookies" on your computer to help make this website better by keeping the site reliable and secure, personalizing content and ads, providing social media ...
https://www.cdc.gov/niosh/mining/UserFiles/works/pdfs/araol.pdf
Throughout the history of longwall mining, the design of the roof support system has been critical to the success of the mining operation. Early forms of longwall mining used wood props for face support and packwalls made from roof and floor rock to control caving of the immediate roof (1). These systems were replaced by powered roof supports that could be advanced easily
https://www.wagnerequipment.com/product/roof-supports/customized-roof-support-systems/
The Longwall Top Coal Caving (LTCC) roof support allows mining to a total seam height of more than 10 m (33 ft) by using a longwall shearer to cut the bottom 2.8-3.0 m (9.2-9.8 ft) and then caving the top coal behind the roof supports onto a rear AFC. This type of longwall is in service for example at a mine in the Hunter Valley, Australia.
https://www.quakerchem.com/download/quintolubric-818-02/
LONGWALL ROOF SUPPORT QUINTOLUBRIC® 814-02 THE SOLUTION Since selecting QUINTOLUBRIC® 814-02 Massey has seen dramatic improvements in the following areas: » Reduction in fluid maintenance » Increase in longwall operation » Increase in the mine’s profitability CHALLENGES Massey Energy works hard to achieve efficient and safe longwall operations.
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