$High Alumina Refractory Bricks / Fireclay Bricks / Insulation Bricks (LQFB) System 1$

$High Alumina Refractory Bricks / Fireclay Bricks / Insulation Bricks (LQFB)$

$High Alumina Refractory Bricks / Fireclay Bricks / Insulation Bricks (LQFB) System 1$

High Alumina Refractory Bricks / Fireclay Bricks / Insulation Bricks (LQFB)

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 111 m.t./month

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Specifications

Refractory Brick
1-Made from high quality alumina
2-Low thermal conductivity
3-SK series,custom made
4-.ISO9001 certificated

Fire/firecaly brick

Refractory brick is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, refractory brick is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.

Refractory brick has wide applications, mainly used in metallurgy, construction(cement and glass), petroleum, chemical industry, electric power and machine building.

Linquan series alumina bricks are high quality dry pressed alumina bricks, ranging from 35% to 95% in alumina content.

Fire clay bricks

Chemical and Physical Properties		LQHAB70	LQHAB 60	LQHAB 50	LQHAB 80
Chemical Analysis (%)	Al2O3; ≥	70	60	50	80
	Fe2O3; ≤	2.0	2.0	2.0	2.0
Refractoriness (SK); ≥		38	37	36	39
Bulk Density; ≥		2.30	2.20	2.10	2.40
Apparent Porosity (%); ≤		23	23	23	23
Cold Crushing Strength		400	400	300	400
(Kg/cm2); ≥
Thermal Expansion (%)		0.65	0.60	0.53	800 0.65
at 1000°C
Permanent Linear Change (%)		0.3	0.3	0.3	0.2
at 1500°C × 2Hrs
Refractoriness under Load		1580	1500	1470	1670

High aluminum bricks

Chemical and Physical Properties		LQH-90	LQH 85	LQH-80
Chemical Analysis (%)	Al2O3; ≥	90	85	80
	Fe2O3; ≤	1.0	1.0	1.0
Refractoriness (SK); ≥		40	40	39
Bulk Density; ≥		3.10	2.90	2.80
Apparent Porosity (%);≤		18	20	20
Cold Crushing Strength		700	600	600
(Kg/cm2); ≥
Thermal Expansion (%)		0.70	0.68	0.65
at 1000°C
Permanent Linear Change (%)		0	0	0.2
at 1500°C × 2Hrs
Refractoriness under Load		1,700	1,700	1,670

Q:The difference between clay bricks and clay bricks: Sintering bricks do not have clay bricks, so sintering bricks are made of stone. Clay brick is clay cooking, two yo, qualitative difference, but the appearance and color almost, but the quality is very different, life expectancy is also a great gap.

Q:The cloth blowing is not uniform on the lime kiln refractory brick is damaged it: People with the shaft kiln cement clinker kiln, because of small size, low calcination temperature, using only Al2O3 containing a single clay brick is 30 ~ 40%, the rotary kiln was improved in the early Yuan faith this experience, use of high alumina brick and clay brick, from 60s onwards, due to large scale kiln and to strengthen the operation of the high temperature parts of kiln lining, alkaline brick masonry is widely used, the main varieties are: magnesia chrome brick, magnesia spinel brick and dolomite brick.

Q:What is the standard size of high alumina brick?: The country has laid down a number of criteria for the use of refractory bricks to unify market demand.

Q:The difference between ordinary and diatomite brick refractory brick: Refractory brick belongs to a large class, according to different materials used are divided into: high alumina brick, dolomite brick, magnesia chrome brick, magnesia spinel brick, phosphate brick, carborundum brick, brick, mullite bricks etc..

Q:What is the apparent porosity of high alumina brick?: Total porosity is porosity refers to the total volume of sample porosity in the percentage of total volume of samples. Apparent porosity refers to the percentage of the total volume of openings, pores, and total specimens in the sample.

Q:How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?: Because the hot air outlet of the top burning hot blast furnace is high, the installation requirement of the hot air manifold is high, and the requirement of the strength of the pillar structure is higher, so the rectangular arrangement of the hot blast stove is arranged. The top burning hot blast stove is located on the furnace top because of burner and hot air valve,Therefore, operation, maintenance and installation all require mechanization and automation. Also, because these water cooled valves are mounted with a high elevation,Therefore, the demand for cooling water supply pressure should be improved accordingly, the use of large top burning hot blast stove, the key lies in the design of high-power high-efficiency short flame burner. The top combustion hot blast furnace absorbs the advantages of internal combustion and external combustion hot blast stoves, and overcomes some of their shortcomings,Its structure can meet the requirements of modern blast furnace for high temperature, high pressure and large scale development,Combustion capacity, while meeting production requirements, has been successfully reduced by many devices,

Q:How much is the bending temperature aluminum silicon carbide brick for torpedo car: The product has the advantages of high temperature, little creep, strong corrosion resistance and good thermal shock resistance, and is suitable for large and medium-sized hot blast stoves.

Q:What is spalling resistant high alumina brick?: Using bauxite as main raw materials, the introduction of a small amount of ZrO2 (ZrO2 is due to phase transition, between monoclinic and tetragonal type can improve the thermal stability of the products), adding a certain amount of binder and additives, the particle size distribution control mud, forming and sintering of refractory products produced, called anti stripping high alumina brick.

Q:Are there any differences between insulating bricks and refractory bricks?: As the name suggests, the main role of insulating brick is used to preserve heat and reduce the loss of heat. Such as: Molai S; and the firebrick is mainly used to withstand flame burn. Bricks usually do not contact fire directly, while refractory bricks usually contact the flame directly.

Q:What is the difference between fireclay bricks and high alumina refractory bricks?: A neutral refractory with an alumina content of more than 48%. Made from alumina or other raw materials of high alumina content; formed and calcined. High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining.

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