GB/T 30049-2013Test method for washability of coal core sample (English PDF)

3.1

coal coal core samples as screening, when drifting test coal, coal coal core samples taken should be consistent with (87) coal to the word No. 656 provides for a number of

Seeking to. thin seam less than 5kg; medium thick seam 5kg ~ 13kg; thick seam less than 13kg.

3.2

from the screening test is less than 0.5mm size fraction product shrinkage take laboratory samples of coal flotation unit, the quality of not less than 1kg.

4.1

jaw crusher, the discharge port size limit is 13mm.

4.2

test sieve pore diameter of 13mm, 6mm, 3mm, 500µm, 250µm, 125µm, 75µm, 45µm wire weaving square hole

Sieve and shall comply with GB/T 6003.1 and GB/T 6005's.

5.1

The coal sample air dry to dry state, weighing (weighing accuracy to 0.01kg).

5.2

coal pore size of a 13mm sieve, sieve material all with jaw crusher to 13mm or less. All materials Press

GB/T 477 provisions of big and small screening screening test, screening test sieve large maximum aperture of 13mm, test procedures in Appendix A.

5.3

weighing each product quality (weighing accuracy to 0.01kg), calculate the yield (gamma,%), and ash content (Ad,%) tests, the results of yield and ash

They are rounded to two decimal places.

Take shrink 5.4 grade product quality tablets each screening quarter, the proportion of the original total sample configuration testing, the overall project can be kind of tests refer to Appendix B.

And a pre-screening coal quality difference between the quality of the product was 5.5 in various size large screening should not exceed 2% before screening coal quality; small screen […]