Refractories for glass industry

product silica brick for the top structure of steklovarenny furnaces

GOST 3910 – 75 (change №№ 1-6)

TU U 26.2-00191738-002:2005 (change №1)

Products are intended for a laying of the top structure of steklovarenny furnaces.

The DS brand is recommended to flew down-cook for a laying of less responsible sites furnaces with the maximum working temperature to 1530  0C. DSO, DSU, DSK brands - for a laying in the most responsible sites of the top structure with the maximum temperature of 1600 0C. Products possess high fire resistance and good resistance to corrosion by the flying mix material components glass weight.

Refractory on the arch have the highest accuracy of the sizes (±1 mm) that provides the minimum uniform seams in a laying, thereby reducing corrosion destruction of seams of a laying.

Indicator name

Norm for a brand product

DS

DSO

DSU

DSK

Mass fraction of SiO2, % not less

94

95

96

96

Mass fraction of CaO, % no more

3,0

2,5

2,5

2,5

Mass fraction of Fe2O3, %, no more

1,7

0,6

0,5

0,4

Mass fraction of Al2O3, % no more

-

-

-

0,4

Fire resistance, 0С, not below

1710

1710

1710

1710

Porosity open, % no more

- for products in weight to 35 kg,

- for products in weight over 35 kg


22

22


21

22


20

21

20



Temperature of the beginning of a softening, 0С, not below

1640

1650

1650

1650

Density, g/cm3, no more

- for products in weight to 19 kg,

- for products in weight over 19 kg

2,38



2,36




2,37

2,38

2,35



Density seeming, g/cm3

-

-

-

1,85

Strength at compression, N/mm2, not less

20

25

30

40

Residual quartz, %

-

-

-

1,5-3,0

Thermal expansion (700 0С), %

-

-

-

1,3

 

product silica brick for walls and the arch of regenerators glass - boiled furnaces

GOST 3910 – 75 (change №№ 1-6).

GOST 4157-79 (изм. №№ 1-5) - standard sizes on  GOST 8691-73 (change № 1-4),

GOST 6024 – 75 (change №№ 1-3) and to drawings of the customer.

DSTU 2343-94 (GOST 1566-96), GOST 24704-94

Products are applied to a laying of walls and the arch of regenerators glass - boiled furnaces.

Indicator name

Norm for a brand product

DS

DN

DM

ED

MLS-62

Mass fraction of SiO2, % not less

94

94

94

96


Mass fraction of CaO, % no more

3,0

-

-

2,0


Mass fraction of Fe2O3, %, no more

1,7

-

-

-

1,5

Mass fraction of Al2O3, % no more

-

-

-

1,5

over 62,0

Fire resistance, 0С, not below

1710

1690

1710

1710

1800

Porosity open, % no more

22

25

23

22

24

Temperature of the beginning of a softening, 0С, not below

1640

1640

1650

1660

1450

Density, g/cm3, no more

2,38

2,40

2,38

2,32-2,34


Strength at compression, N/mm2, not less

20

17,5

22,5

25

25

Additional shrinkage, no more (1500 0С)





0,4

Thermal firmness of heatchanges, not less





3

 

Zirconium products for glass furnaces

TU U 26.2-00191738-006:2006 (change №1)

One of the promising types of fireproof materials are containing zircon products that were used in bathrooms to glass melting furnaces, refractories of silica brick containing alumina refractory wall of the furnace to prevent the reaction between the material, in the form of the bottom relief layer tile in podine basin, products for feeder pripasa (points, bushing) and products of combustion zones and zones of feeders of glass furnaces.

Indicator name

Norm for a brand product

CPS-1

CPS-2

KCI

MCI-1

MCI-2

Mass fraction of ZrO2+HfO2, %, not less

64

60

в пределах 4-7

18

30

Mass fraction of SiO2, %, no more

32

34

-

16

28

Mass fraction of Al2O3, %

no more 2,0

no more 3,6

not less 85

no more 65

not less 36

Fire resistance, 0С, more

1750

1750

1750

1750

1750

Porosity open, % no more

20,0

20,0

22,0

23,0

23,0

Density seeming, g/cm3

3,7

3,7

3,6

not less 3,0

not less 3,2

Strength at compression, N/mm2, not less

80

80

60

85

85

Thermal expansion, % (1000 0С)

(1400 0С)

0,8

0,8


1,0

1,0

 

Heatinsulating superficial silica brick of a product for glass - boiled furnaces

DSTU 2342-94 (GOST 5040-96).

Standard sizes in accordance with GOST 8691-73 (change №№ 1-4)

Products are applied to a thermal insulation glass - boiled furnaces in a zone which is not treating to action of melts, using-up efforts and mechanical blows, or in the intermediate (protected) isolation.

Indicator name

Norm for a brand product

DL

DL-1,2

DL-1,2

Mass fraction of SiО2, %, not less

90

91

90

Strength at compression, N/mm2, not less

4,0

4,5

4,5

Density seeming, g/cm3, no more

1,0

1,2

1,2

Heat conductivity, W / (m To), at average

to temperature, 0С, no more

350 ± 25oС,

650 ± 25oС



0,5

0,6



0,60

0,70



0,60

0,70

Density, g/cm3, no more

2,39

2,39

2,39

Additional linear growth at endurance of 2 h, %, at temperature 15500С, no more

1,0

1,0

1,0

 

Plastified silica brick refractory mortar

GOST 5338-80 (chsnge №№ 1-2)

Indicator name

Norm for a brand product

MD 94

MD 92

MD 90

Mass fraction of SiО2, %, not less

94

92

90

Mass fraction А12О3, %, in limits

2,0-3,5

2,5-4,0

3,5-6,0

Mass fraction of Na23, %, in limits

0,10-0,15

-

Mass fraction of LST, %, in limits

0,07-0,12

0,10-0,25

Mass fraction of CaCl2, %, in limits

-

2,0-2,8

Humidity, %, no more

5

Weight change during the calcinating, %, no more

1,1

1,5-2,8

1,8-3,5

Grain structure, %:


Pass through a grid No. 2, not less

100

Pass through a grid No. 1, not less

97

Pass through a grid No. 02, in limits

65-85

Pass through a grid No. 009, in limits

45-65

It is allowed to produce mortar of MD 92 and MD 90 brands on request of consumers with the maintenance of Na23 instead of CaCl2 in number of 0,10-0,15 % and LST in number of 0,07-0,12 %.

 

not formed materials containing zircon for glass - boiled furnaces

TU U 26.2-00191738-003:2006 (change №1)

Are applied to linkage zircon of products in a fire-resistant laying, in the form of heatinsulating stand.

Indicator name

Norm for a brand product

MDC

MC

MCM-1

MCM-2

MMKC

MKC

Mass fraction of SiO2, %, no more



16

28



Mass fraction of ZrO2+HfO2, %, not less

90

61

18

30

no more 8

no more 5

Mass fraction of Al2O3, %

no more 2,5

no more 3,6

no more 65

no more 36

not less 62

not less 86

Size of grain, mm

0-0,5

0-0,5

0-0,5

0-0,5

0-0,5

0-0,5

Max temperature of application, 0С

2000

1600

1650

1600

1700

1750

Density, g/cm3

4,0

3,47

3,4

3,4

3,3

3,3

Period of storage, month.

unlimited

Miscibility

Н2О

Н2О

Н2О

Н2О

Н2О

Н2О

Requirement of water of l/100 of kg

12-16

Setting type

hydraulic

Initial temperature setting/sintering temperature

>350 oС - >1300 oС

Use method

To ram, plaster, filling