Dust controlling method using a coal cutter bit

Patent · Tue Feb 17 04:00:00 EST 1981

OSTI ID:6494461

Roepke, W W

A method is claimed of augmenting the cutting operation of a cutter bit to reduce the cutting energy required and to reduce the respirable dust generated during the cutting operation. During the cutting operation of coal with a continuous mining machine greater than 90 percent of the primary respirable dust generated occurs in T crushing zone around the tip of bit. By applying a high pressure (2,500 to 5,000 psi) spray of water at or near the center of the cutting tip, as the tip touches the coal, tests have shown very substantial reductions in the airborne respirable dust generated and that there is lubrication and cooling at the cutter tip/mineral interface to provide for reduced sumping forces and lowered methane ignition potential.

• Assignee: U S Of America Interior Secretary Of
• Patent Number(s): US 4251109
• OSTI ID: 6494461
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
012000 -- Coal
Lignite
& Peat-- Mining
016000 -- Coal
Lignite
& Peat-- Health & Safety
AIR POLLUTION CONTROL
COAL MINES
CONTINUOUS MINERS
CONTROL
COOLING
CUTTER LOADERS
DUSTS
EQUIPMENT
HYDROGEN COMPOUNDS
LUBRICATION
MINES
MINING EQUIPMENT
OXYGEN COMPOUNDS
POLLUTION CONTROL
SAFETY
SPRAYS
WATER