GB/T 31087-2014General technical requirements for impurities control of commercial coal (English PDF)

2.1 Commercial coal debris

Commercial coal debris refers to coal in the production, processing, storage, distribution and other process impurities mixed, comprising.

--- Mining process detonate detonator skin (detonator head) and residual detonator;

--- Production process waste miscellaneous iron (eg component gun line, wire, spikes, welding rod, bolts, welding slag, and other equipment, etc.);

--- Support with prop, bark, wood, wedge, etc;

--- Chunk gangue;

--- Plastic (such as transportation and storage process mixed plastic packaging, etc.);

--- Fiber (such as yarn, silk, wire rope, bags, etc.);

--- Paper (such as explosives, wrapping paper, cardboard boxes and the like);

--- Mixed during transport brake shoe, brake brazing, sand, weeds, straw, straw bags, garbage, etc;

--- Animal carcasses and other animal debris;

--- Other foreign matter.

3.1 Coal production and processing sectors

3.1.1

should be set downhole debris bucket, debris recycling bags recycling facilities, to prevent debris into the coal flow from the source system to minimize

Mixing amount of debris, all kinds of debris recovered debris cross underground warehouse for centralized treatment.

3.1.2

Goods are not allowed coal detonators, detonating pipe and other dangerous debris.

3.1.3 before crushing and screening equipment, products, etc

should be set up blocking positions entrance hybrid network, stopped miscellaneous hooks and other facilities for the effective removal of coal flow in the debris.

3.1.4

In case of an increase in debris or debris into the special coal stream, sorting complex should strengthen efforts to stop or debris picked.

3.1.5

Coal production, processing enterprises should maximize the use of advanced and efficient impurity removal process on the effective control of debris.

3.2 coal stockpiling link

3.2.1

Coal Yard ground should be completely cured, there should be around isolation facilities to prevent debris mixed. Not hardened ground on the Coal Yard in

Take coal process should be avoided since the end of the dirt, sand and other debris mixed with coal.

3.2.2

coal yard (warehouse) stack (feed) feed operations, should promptly clean up the stack (feed) material found during debris.

3.2.3

routine patrol discovered coal yard debris should be promptly removed.