High Alumina Bauxite and Flint Clay Raw Material Fireclay Brick Refractory Competitive

Low porosity fireclay brick for glass furnace is a kind of refractory fireclay brick. It is mainly made of high alumina bauxite and flint clay as the main raw materials, adding sillimanite and andalusite according to the proportion and adding binders and adhesives. The porosity of low-porosity clay products made by smelting, forming, drying and firing in a kiln is generally less than 18%.

In order to adapt to the working environment of the glass regenerator and comprehensively consider the factors that lead to the damage of the kiln lining: chemical erosion, mechanical erosion, temperature fluctuations, etc., our company has researched and developed clay bricks with different properties, such as: low porosity clay bricks (significant porosity) Not more than 15%), ultra-low porosity clay bricks (significant porosity not more than 12%), low creep, low porosity, low iron three-low clay bricks (commonly known as three-low bricks,DDD), etc.

The performance characteristics of low porosity fireclay bricks are: high strength, high refractoriness, compact structure, low pores, good thermal shock stability, resistance to peeling, and are commonly used in hot blast stoves and glass furnace regenerators.

Low porosity fireclay bricks Features:
1. The apparent porosity is low and the compactness is strong.
2. Good penetration resistance and erosion resistance.
3. High temperature strength and long service life.

Low porosity fireclay bricks technical data:

Low porosity fireclay brick size

Straight size:230×114×65    230×114×75    230×57×65

Split size: 230×114×32    230×114×40    230×114×25    230×114×50

Arch/Wedge size: 230×114×65/45    230×114×65/55    230×114×75/45    230×114×75/55    230×114×75/65

Tile size: 230×230×38    230×230×50   230×230×65    230×230×75

Other size: Key refractory brick, Skew refractory brick, Soap, Checker, Neck, Taper

Also produce low porosity fireclay bricks according to customers' needs

1.Low porosity fireclay brick Production Process
Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packaging and Shipment

The flint clay is crushed to three sizes of 3.2~1.6mm, 1.6~0.5mm and <0.5mm. After the fine powder is co-milled by a ball mill, more than 75% of the particle size is less than 0.88mm using multi-clinker ratio, clinker 80-85%, composite clay 15-20%. The composition of the ingredients particles is as follows: 3.2~1.6mm25%, 1.6~0.5mm25%, <0.5mm10%, a total of 40% fine powder.

The material is mixed with a wet mill. The order of addition: first mix with skilled granules for 1~2min, then add the pre-adjusted clay mud for mixing for 2~3min, then add the co-milled powder and mix for 3~5min, the water content of the mud 3.9~4.5%, ready for use after 24h of material trapping.

The molding is performed on a 300t friction brick press. When hitting bricks, start lightly and then heavier, hitting 8-12 times. The density of the brick blank should be greater than 2.38g/cm3. After the soil embryo is dried, the moisture content is less than 2%. If the firing is carried out in an inverted flame kiln, the firing temperature is 1400 ℃, and the temperature is kept for 50 to 60 hours.

The physical indicators of the product are as follows: first porosity 12%; bulk density 2.4g/cm3; normal temperature compressive strength 71MPa; 1400℃, 3h reburning linear change rate -0.1%; load softening temperature 1500℃.

2.Low porosity fireclay brick Quality Assurance
HongTai Refractory is committed to high quality standards for all its products and services. With its thirst on State of the art technology at every level and a wide range of products, HongTai Refractory can provide ideal solutions for the stringent requirement of the customer. Backed by decade of experience in different industries, and close association with customers,HongTai Refractory will always bring new products which will give better life and value to the user.

The quality assurance system for low porosity fireclay brick consists of the following steps: 

1. Inspection and Control of incoming raw materials:According to the chemical content,raw materials are classified into different levels to ensure quality of brick first.
2. Inspection and process control:During the production, each brick weight twice to reduce weight error.
3. Inspection of product Standardization of quality of each product by process control and experimentation.
4. Taking corrective measures whenever deviations are noted.

Low porosity fireclay bricks usage:

Low porosity fireclay bricks are mainly used in the middle and lower grids and wall parts of the regenerator of glass kilns,the regenerator of blast furnaces and hot blast furnaces in the steel industry;  chemical kilns in the chemical industry as kiln linings.

Henan Hongtai Kiln Refractories Co., Ltd. is located in Xinmi City, Henan Province, China Refractory Industry Park. The territory is rich in refractory resources and high in quality, which provides unique conditions for the production and operation of refractories. The company is a comprehensive enterprise integrating scientific research, production, engineering design, kiln construction and supporting services. The company mainly produces and sells steel, glass, cement, lime, calcium carbide, coking, carbon, electrolytic aluminum, boilers, and garbage incinerators. , Metal magnesium, chemical industry and other kiln supporting projects with shaped and unshaped refractory materials, and have laboratories, scientific research institutes and other institutions. The company has strong technical force and complete testing methods. It has high-temperature shuttle kilns, high-temperature tunnel kilns and unshaped material production lines, with an annual production of 60,000 tons of shaped and unshaped refractories.

Packaging for low porosity fireclay brick

1.Pallet+Paper or Steel angle bead+Paper board +Plastic or Steel belt +Plastic film

(1)Wooden pallet size:Usually0.92*0.92m(standard brick),but 1*1m (special shape brick) at most,

(2)Load weight of each pallet:Usually 1.5-1.7Tons, max 2.0 Tons.

(3)20 Foot Container can be loaded max 25-26Tons, about 13-16Pallets.

2.Can make the low porosity fireclay brick package according to customer's requirements.

Shipping for low porosity fireclay brick

1.FEDEX/DHL/UPS/TNT for clay refractory samples.

2.By Sea for batch clay refractory brick goods.

3.Customers specifying freight forwarders or negotiable shipping methods!

4.low porosity fireclay Delivery Time:

(1)low porosity fireclay brick Samples:3 days for common shape low porosity fireclay brick samples;15 days for special shape low porosity fireclay brick samples.

(2)Batch goods:Within 7-10days for in stock low porosity fireclay bricks from ordering shipping space to deliver goods and within20-30 days for NOT in stocklow porosity fireclay bricks.

Low porosity fireclay Brick Payment Terms

(1)T/T, Western Union,LC;

(2)Usually 30% deposits,70% balance to be paid before delivery or against copy of BL or negotiations

Others

 MOQ: Usually 1 container, MOQ 1Tons, Customers can order certain PCS for special low porosity fireclay brick.

1. Strong professional:
Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractorys production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons.
3. Export experiences:
Now we have gained a global sales network reaching Taiwan, Russia, South Korea, Vietnam, Pakistan, Bulgaria, French, India, Congo, Angola, South Africa, and so on.
4. Production equipment:
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.
5. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester     Bulk Density Tester     The Pressure Tester       Refractoriness Tester

Jerry Li         

Cell&WhatsApp: 0086-13373957739 

Email: jerry(at)ht-refractory.com