Chemical industry 
Food industry 
Light industry 
Mechanical engineering 
Metallurgy 
Mining industry 
Is Negotiable
Crushed stone
DOKUCHAEVSK FLUSO-DOLOMIT PLANT, State Enterprise
DSTU B В.2.7-75-98:
|
|
Parameter |
The diameter of the control sieve cells, which corresponds to the grain size, mm |
||
|
d |
0,5 (d + D) |
D |
||
|
1 |
0 - 20 mm |
90 - 100 |
30 - 80 |
> 10 |
|
2 |
5 - 20 mm |
|||
|
3 |
20 - 50 mm |
|||
- The content of pulverized, clayey and silty particles: not more than 2%;
- The limit of mechanical strength of crushed stone at compression is not less than 60 MPa;
- Frost resistance - F50;
Maximum permissible concentration and hazard class of crushed stone in the air of the working area:
|
Сomponent |
Controlled aerosol location |
Value of MPC, mg / m3 |
Hazard Class |
Designation of the standard |
|
Carbonate-silicate dust |
Air of working area |
6,0 |
4 |
ГОСТ 12.1.005 |
|
Atmospheric air |
0,5 |
3 |
ДСП-201 |
Is Negotiable
Low-iron dolomite
DOKUCHAEVSK FLUSO-DOLOMIT PLANT, State Enterprise
Brand:
DM - is used in the glass industry.
Chemical composition according to TU U 14.1-00191856-010: 2007:
|
№ |
Parameter |
Standard for the brand |
|
|
ДМ-1 |
ДМ-2 |
||
|
1 |
Mass fraction of magnesium oxide (MgO2), not less than |
16 |
14 |
|
2 |
Mass fraction of silicon oxide (SiO2), no more than |
1,5 |
2,5 |
|
3 |
Mass fraction of iron oxides, (Fe2O3), no less than |
0,3 |
0,5 |
Granulometric composition: 5-25 mm.
Grain composition:
|
Size, mm
|
Allowable values for the content of pieces of coarse size, in% by mass, not more than |
|
|
below lower limit |
above upper limit |
|
|
5-25 |
10 |
20 |
The limit of mechanical strength of dolomites under compression is not less than 60 MPa.
Is Negotiable
Ordinary flux limestone
DOKUCHAEVSK FLUSO-DOLOMIT PLANT, State Enterprise
Brands:
Ч-1, Ч-2 - for blast-furnace production;
С-1, С-2 - for electric steelmaking;
F-1, F-2 - for ferroalloy production.
Chemical composition according to TU U 14.1-00191856-005-2003:
|
№ |
Наименование показателя |
Норма для марки, % |
|||||
|
Ч-1 |
Ч-2 |
С-1 |
С-2 |
Ф-1 |
Ф-2 |
||
|
1 |
Mass fraction of calcium and magnesium oxides (CaO + MgO), in total not less than |
|
|
|
|
|
|
|
2 |
Mass fraction of magnesium oxide (MgO) |
|
|
|
|
|
|
|
3 |
Mass fraction of insoluble residue in hydrochloric acid (HO), not more than |
|
|
|
|
|
|
|
4 |
Mass fraction of silicon oxide (SiO2), no more than |
- |
- |
|
|
|
|
|
5 |
Mass fraction of sulfur (S), no more than |
- |
- |
|
|
|
|
|
6 |
Mass fraction of phosphorus (P), no more than |
- |
- |
|
|
|
|
Granulometric composition: 0-5mm, 0-10mm, 0-20mm, 5-20mm, 20-50mm, 40-80mm, 80-130mm.
Grain composition:
|
Size of a piece, mm |
Allowable values for the content of pieces of size, in% by weight, no more than |
|
|
below lower limit |
above upper limit |
|
|
0-5,0-10, 0-20 |
- |
20 |
|
5-20 |
10 |
20 |
|
20-50 |
10 |
20 |
|
40-80 |
10 |
20 |
|
80-130 |
10 |
20 |
The limit of mechanical strength of limestones during compression is not less than 60 MPa.
Is Negotiable
Fluxing dolomite
DOKUCHAEVSK FLUSO-DOLOMIT PLANT, State Enterprise
Brand:
DF - for use in ferrous metallurgy as a flux.
Chemical composition according to TU U 14.1-00191856-008: 2007:
|
№ |
Parameter |
Norm for the brand,% |
||||
|
ДФ-1 |
ДФ-2 |
ДФ-3 |
ДФ-4 |
ДФ-5 |
||
|
1 |
Mass fraction of magnesium oxide (MgO), not less than |
16 |
14 |
16 |
14 |
16 |
|
2 |
Mass fraction of calcium and magnesium oxides (CaO + MgO) in total, not less than |
50 |
48 |
50 |
48 |
50 |
|
3 |
Mass fraction of silicon oxide (SiO2), no more than |
1,5 |
2,5 |
1,5 |
2,5 |
1,5 |
|
4 |
Mass fraction of iron oxide and aluminum (Fe2O3 + Al2O3) in total, no more than |
1,1 |
1,5 |
1,1 |
1,5 |
1,1 |
|
5 |
Mass fraction of sulfur (S), no more than |
0,06 |
0,15 |
0,06 |
0,15 |
0,06 |
|
6 |
Mass fraction of phosphorus (P), no more than |
0,02 |
0,02 |
0,02 |
0,02 |
Не нормируется |
Granulometric composition: 0-5, 20-40mm, 20-50mm, 40-80mm.
Grain composition:
|
Size of a piece, mm
|
Allowable values for the content of pieces of coarse size, in% by mass, not more than |
|
|
below lower limit |
above upper limit |
|
|
0-5 |
- |
20 |
|
5-20 |
10 |
20 |
|
20-50 |
10 |
20 |
The limit of mechanical strength of dolomites under compression is not less than 60 MPa.
Is Negotiable
Ordinary flux limestone
DOKUCHAEVSK FLUSO-DOLOMIT PLANT, State Enterprise
Brands:
T1, T2 - for the production of technological lime in the cement and other industries;
IS- for the sugar industry
Chemical composition according to TU U 14.1-00191856-005-2003:
|
№ |
Parameter |
T-1 |
T-2 |
ИС |
|
1 |
Mass fraction of insoluble residue in hydrochloric acid (HO), not more than |
3,0 |
10,0 |
3,0 |
|
2 |
Mass fraction of calcium carbonate (CaCO3), no less than |
92,0 |
84,0 |
93,0 |
|
3 |
Mass fraction of magnesium carbonate (MgCO3), no more than |
5,0 |
6,0 |
2,5 |
|
4 |
Mass fraction of aluminum and iron oxides (Al2O3 + Fe2O3), not less than |
- |
- |
1,5 |
|
5 |
Mass fraction of calcium sulphate (CaSO4), not more than |
- |
- |
0,4 |
|
6 |
The mass fraction of potassium and sodium oxides (K2O3 + Na2O) |
- |
- |
0,25 |
Grading:
- brand IS - 40-80mm, 80-130mm;
- Brand T - 0-20mm, 40-80mm, 80-130mm;
Grain composition:
|
Size of a piece, mm |
Allowable values for the content of pieces of coarse size, in% by mass, not more than |
|
|
below lower limit |
above upper limit |
|
|
0-20 |
- |
20 |
|
5-20 |
15 |
20 |
|
40-80 |
10 |
20 |
|
80-130 |
10 |
20 |
The limit of mechanical strength of limestones during compression is not less than 60 MPa.