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Float glass furnace

Float glass furnace refractories for each part

1. L-shaped hanging wall

Silica brick

2. Melting part

Fused Brick Silica Brick

3. Stuck neck

Silica brick

4. Cooling unit

Corundum refractories, silica bakstenen

5. Annealing kiln, regenerator

Bakstenen van hoog aluminiumoxide, bakstenen van klei, directly bonded magnesia chrome bricks

Glass production process

Glass: an amorphous solid substance obtained by cooling and hardening of a molten substance. The production process includes the preparation of raw materials – the melting of molten glass – the shaping of glass products – the annealing of glass products. The process in the glass kiln includes the mixing of glass batch materials in a reasonable It melts into a liquid phase under the temperature regime, homogenizes and clarifies it, and becomes a transparent liquid.

Silica brick

Silica bricks are refractory products with a SiO2 content of more than 93%. They are made from silica with a silicon content of >96%, adding mineralizers and binders, and then mixing, shaping, drogen, and firing. They are mainly used for coke oven carbonization. Chambers, combustion chambers and partition walls, glass kiln roofs, kiln walls, high-temperature load-bearing parts of hot blast furnaces carbon roasting furnaces, and other kilns. True density <2.35. Het is een zuur vuurvast materiaal, which is highly resistant to acidic slag or acidic solution corrosion, but has poor resistance to alkaline corrosion; the load softening temperature is high at 1640~1680℃; It has poor thermal shock resistance and fire resistance of 1690~1730℃.

project	inhoudsopgave
project	BG-96A	BG-96B	BG-95	JG-94	G1-94>96
Sio₂%	≥96	≥96	≥95	≥94,5	≥94
Fe₂O₃	≤0,6	≤0,8	≤1,0	≤1,2	≤1,4
Melt index %	≤0,5	≤0,7	/	/	/
Schijnbare porositeit %	≤21	≤22	≤22	≤22	≤24
True density g/cm³	≤2,34				≤2,33
Normal temperature compressive strength MPa	≥40	≥35	≥30	≥40	≥30
0.2MPa load softening temperature℃	≥1680	≥1670	≥1670	≥1650	≥1650
Heating permanent line changes %1450℃*2h	0-0.2
Resterend kwarts %	≤3			≤1,5	/

Fused zirconia corundum brick

Fused zirconia corundum bricks are used to build kiln pool walls, flame space parapets, small furnace spouts, small furnace level gates, small furnace stacks, tongue gates, enz. Fused zirconia corundum bricks with 41% zirconium content are used for The corners of the masonry pool wall, the liquid flow hole, and other parts where the glass liquid has the most severe erosion on the refractory material. This material is the glass industry’s most widely used fused cast refractory.

Item		Gesmolten gegoten AZS-steen
Inhoudsopgave		RS-AZS33	RS-AZS36	RS-AZS41
Chemisch Samenstelling%	Al2O3	≥50,00	≥49,00	≥45,00
	ZrO2	≥32,50	≥35,50	≥40,50
	SiO2	≤15,00	≤13,50	≤12,50
	Na2O+K2O	≤1,30	≤1,35	≤1,30
Volumedichtheid g/cm3		≥3,75	≥3,85	≥4,00
Schijnbare Porositeit %		≤1,2	≤1,0	≤1,2
Koude verpletterende sterkte Mpa		≥200	≥200	≥200
Exudatietemperatuur van glasfase		≥1400	≥1400	≥1410
Bellenscheidingsverhouding (1300℃×10h)		≤1,2	≤1,0	≤1,0
Anticorrosiesnelheid van glasvloeistof 1500℃×36h (mm/24h)%		≤1,4	≤1,3	≤1,2
Bulkdichtheid (g/cm3)	Gewone casting PT(RN RC N)	≥3,55	≥3,55	≥3,70
	Geen krimpgietwerk ZWS(RR EVF EC ENC)	≥3,65	≥3,75	≥3,85
	Kantelgieten QX(RO)	≥3,65	≥3,75	≥3,90
	Geen krimpgieten WS( RT VF EPIC FVP DCL)	≥3,75	≥3,80	≥3,95

Magnesia baksteen

The glass kiln regenerator will use 98 magnesia bricks and 96 magnesiumoxide bakstenen

project	MZ-95		MZ-96		MZ-97		MZ-98
project	straight bricks	Tubular brick	straight bricks	Tubular brick	straight bricks	Tubular brick	straight bricks	Tubular brick
Mgo%	≥95	≥95	≥96	≥96	≥96.7	≥96.7	≥97,2	≥97,2
Sio2 %	≤1.8	≤1.8	≤1,5	≤1,5	≤1,0	≤1,0	≤0,6	≤0,6
Ca0 %	≤2,0	≤2,0	≤1.8	≤1.8	≤1,5	≤1,5	≤1,3	≤1,3
Bulkdichtheid g/cm3	≥2,95	≥2.93	≥2.98	≥2,95	≥3.0	≥2.98	≥3,02	≥3.0
Schijnbare porositeit %	≤17	≤18	≤16	≤17	≤15.5	≤16.5	≤15.5	≤16.5
Normal temperature compressive strength MPa	≥70	≥60	≥70	≥60	≥70	≥60	≥70	≥60
0.2MPaload softening temperature ℃	1680	1680	≥1700
Thermal shock resistance 950℃ air times	≥10

Dense zircon bricks

Dense zircon stone is manufactured using isostatic pressing/sintering technology. It has excellent properties such as high-temperature resistance, good thermal shock resistance, en weerstand tegen glasvloeistoferosie. It is mainly used in the bottom and upper space of alkali-free glass and borosilicate glass tank kilns. Bricks, haak bakstenen, gap bricks, trough bricks, thermokoppel stenen, and viewing hole bricks.

project	ZS-G	ZS-Z	ZS-65A	ZS-65B	ZS-63
Zro2 %	≥65	≥68	≥65	≥65	≥63
Sio2 %	≤33	≤30	≤33	≤33	≤35
Fe203 %	≤0,2	≤0,2	≤0,2	≤0,2	≤0,2
TiO2 %	≤1,2	≤1,2	≤1,2	≤1,2	/
Bulkdichtheid g/cm3	≥4.3	≥4.1	≥3.7	≥3.6	≥3,55
Schijnbare porositeit %	≤1	≤11	≤17	≤19	≤20
Normal temperature compressive strength MPa	≥300	≥200	≥100	≥80	≥60
0.2MPa load softening starting temperature ℃	≥1700	≥1700	≥1680	≥1650	≥1600

Sintered zirconium corundum brick

Sintered zirconium corundum bricks have good resistance to alkali vapor and thermal shock. They are mainly used in the flame space of glass kilns, regenerator bricks, and upper grids. They can also be used in float glass kilns and daily glass kilns. Pave the bottom or forehearth with large bricks.

project	AZS-16	AZS-20	AZS-32
Zro2 %	≥16	≥20	≥32
Fe203 %	≤0,5	≤0,5	≤0,5
Bulkdichtheid g/cm3	≥2,7	≥2,8	≥3,2
Schijnbare porositeit %	≤20	≤18	≤18
Normal temperature compressive strength MPa	≥70	≥80	≥80
0.2MPa load softening starting temperature ℃	≥1580	≥1620	≥1630

Zero expansion silica bricks for repair

The linear expansion coefficient of zero-expansion silica brick is close to 0, it has excellent thermal shock resistance, high softening temperature under load, and is safe and reliable for long-term use.

project	FS-97	FS-98	FS-99
Sio₂ %	≥97	≥98	≥98.5
Al₂0₃ %	≤0,5	≤0,3	≤0,2
Fe203 %	≤0,3	≤0,2	≤0,1
Bulkdichtheid g/cm³	≥1.75	≥1.8	≥1,85
Schijnbare porositeit %	≤22	≤20	≤18
Normal temperature compressive strength MPa	≥25	≥30	≥35
0.2MPa load softening starting temperature ℃	≥1500	≥1600	≥1650
Linear expansion rate % 1000℃	≤0,2	≤0,2	≤0,2
Thermal shock resistance 1100℃ water cooling times	≥30	≥30	≥30

Low porosity clay brick

project	DN-11	DN-14	DN-17	ZN-45	ZN-40	ZN-40
Al²0³ %	≥47	≥45	≥42	≥45	≥40	≥36
Fe₂0₃ %	≤1,2	≤1,5	≤1.8	/	/	/
Bulkdichtheid g/cm³	≥2,4	≥2.34	≥2.26	/	2.0-2.4	/
Schijnbare porositeit %	≤11	≤14	≤17	≤16	≤19（22）	≤22（24）
Normal temperature compressive strength MPa	≥80	≥65	≥50	≥60	≥40（35）	≥35（30）
0.2MPa load softening starting temperature ℃	≥1520	≥1470	≥1430	≥1430	≥1430	≥1380
Heated permanent line change % x2h	0.1~-0.21500	+0.1~-0.21400-0.2-+0.1		-0.2~+0.1	-0.3~+0.1	-0.4~+0.1