Showing 1-5 of 27 items.

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




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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.


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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

 
53,5


 
51,5


 
53,5


  
52,5


 
54

 
53

2

Mass fraction of magnesium oxide (MgO)
not less than
no more

 

-
5



 
-
 5



 
-
 5



 
-
 5



 
-
 3,5



 
-
 3,5

 3

Mass fraction of insoluble residue in hydrochloric acid (HO), not more than

 
2


 
4


 
-


 
-


 
-


 
-

 4

Mass fraction of silicon oxide (SiO2), no more than

-

 -


 
1,5


 
2,0


 
1,5


 
2,0

5

Mass fraction of sulfur (S), no more than

-

-


0,06


0,09


0,06


0,09

 6

Mass fraction of phosphorus (P), no more than

 -

 -


 
0,01


0,01


 
0,01


 
0,01


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.

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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.

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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.

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