Semi-Silica Refractory Brick for Metallurgical Furnace Flue

• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials
• Type: Refractory Material
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Shape: Brick
• Material: Silicon Carbide (SiC)
• Sio2: Min95%
• Application: Metallurgical Furnace Flue
• Brick: Semi Silica Brick
• Refractory Material: Fireproof Material
• Character: Silica Brick
• Transport Package: on Fumigated Wooden Pallets
• Specification: 220/114/64mm or as customer requirement
• Trademark: KAIYUAN
• Origin: China
• HS Code: 690100000
• Production Capacity: 2000 Tons/Month
• Package Size: 1000.00cm * 1000.00cm * 800.00cm
• Package Gross Weight: 1800.000kg

Product Description

Semi-silica Refractory Brick for Metallurgical Furnace Flue
The Description:
Al2O3 content of 15% ~ 30% aluminum silicate refractory products. The raw materials for the manufacture of semi-siliceous products are clay containing quartz impurities or primary kaolin, fireclay or kaolin tailings and pyrophyllite obtained during mineral processing

When siliceous clay is used as raw material, it is decided whether to add clinker according to the nature of the raw material and the conditions of use of the product. Siliceous clay is fired with very little shrinkage, and no clinker is added to bricks. In order to improve the performance of the product, 10% to 20% clinker is added to the ingredients, and the manufacturing method is similar to that of clay bricks.

Various raw materials through coarse crushing, medium crushing, fine crushing three crushing, into less than 3mm, 2mm, 0.5mm a variety of particles. There are different proportions of ingredients according to the properties of bricks. Generally choose pyrophyllite and light pyrophyllite particle material 80% ~ 90%, combined with the proportion of clay 20% ~ 10%, add pulp waste liquid and make mud in the pressure mixer, and then the mud should be trapped for more than 24 hours to form. Blank cracking should be avoided when forming.

The use of low stroke and high stroke friction brick press molding, generally choose nominal pressure 2600 ~ 3000kN brick press. Brick bricks are dried using a drying kang or tunnel dryer, the drying temperature is generally 90 ~ 300ºC, and non-fired bricks can be used after drying for 48h. The firing temperature of the fired brick is about 1200C. In the firing process at 600 ~ 800ºC stage, due to the exclusion of structural water, it should be slowly heated up.

 

The Physical and Chemical Index :

Item		Index
Al2O3          %          ≥		15-30
SiO2      ≥		65
Bulk Density g/cm³     ≥		2.5
Refractoriness     ºC		1650-1710
0.2MPa  RUL   ºC    ≥		1450

Application:

The semi-silicon brick is stable in volume and has good slag resistance to acid slag. Therefore, it is widely used in coke oven, acid cubing furnace, metallurgical furnace flue, steel bucket, flow steel brick, iron water tank and so on. The use of semi-silicon bricks in the lining of steel drums is more durable than clay bricks, good integrity and no slag.
Company main products and profiles:

 

Why choose us?

Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.

Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.

Our Laboratory and R&D Center

We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity

 

 

Contract Kiln Construction


FAQ

1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China

2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.

3. Do you accept OEM?
A: Yes, we do OEM.

4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.

5. What is the payment term?
A: TT, LC, DP, DA.

6. How long is the delivery time?
A: Usually within 35 days after down payment.

7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.

8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.

9.What is your company's certification?
A: ISO9001 certificate