Silica Refractory Brick for Other Positions of Coke Oven

• Feature: Good Acid Resistance, High Refractoriness, Low Thermal Conductivity, Thermal Shock Resistance
• Production Process: Dry Pressing
• Refractoriness (℃): 1770< Refractoriness< 2000
• 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.
• Model NO.: JG-94
• Shape: Brick
• Type: Silica Brick
• Sio2: Min94%
• Application: Coke Stove
• Brick: Shaped 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: 1100.00cm * 1000.00cm * 1000.00cm
• Package Gross Weight: 800.000kg

Product Description

Silica Refractory Brick for Other Positions of Coke Oven
The Description:
Silica brick for coke oven (silica brick for coke oven) refers to the silica refractory products used for laying coke oven with squamous quartz as the main crystal phase. Modern coke oven is a huge thermal equipment built by thousands of brick types and tens of thousands of t refractory materials. Silicon brick is the main material of its masonry, constituting the basic part of the coke oven: regenerator wall, ramp, combustion chamber, carbonization chamber, furnace top, etc., accounting for 60%-70% of the total refractory brick a coke oven furnace service of about 20~30a, some as high as 45a. The quality of silicon brick of coke oven is one of the factors affecting the service length of coke oven. With the large scale of coke oven, the temperature of main fire passage increases, and the quality of silicon brick of coke oven becomes more important.

The Physical and Chemical Index :

Items	Specification
	JG-94
	Floor	wall	other positions
SiO2%	94.5		94
Fe2O3 % (≤)	1.2		1.5
Al2O3 ≤	1.2		1.5
CaO%        ≤	3.0		3.0
Na2O+K2O%    ≤	0.35		0.35
Apparent porosity % ≤	22		24
CCS ,MPa (≥)	40	35	28
Refractoriness under load  ≥	1650
True Density g/cm3	2.33		2.34
Residual quartz %	1.5
Permanent linear change%	0-0.2
Thermal expansion%≤	1.28		1.3

Physical properties of coke oven silicon brick:

(1) The load softening temperature is high, the coke oven silicon brick can withstand the dynamic load of the coal truck on the top of the furnace at high temperature, and can be used for a long time without deformation;

(2) High thermal conductivity. Coke is made of coke coal in the carbonization chamber by conduction heating of the wall of the combustion chamber, so the silicon brick masonry of the combustion chamber wall should have a high thermal conductivity. Within the temperature range of the coke oven combustion chamber. The thermal conductivity of silicon brick is higher than that of clay brick and high aluminum brick. The thermal conductivity of compact coke oven silicon brick is 10%~20% higher than that of ordinary coke oven silicon brick.

(3) Good thermal shock resistance at high temperatures. Due to the periodic loading and discharging of coke oven, the temperature of silicon brick on both sides of combustor wall changes dramatically. The temperature fluctuation range of normal operation will not cause serious cracks and spalling of silicon bricks, because above 600ºC, coke oven silicon bricks have good thermal shock resistance;

(4) High temperature volume stability. In the silicon brick with good crystal transformation, the residual quartz is less than 1%, and the expansion is concentrated before 600ºC when heated, and then the expansion slows down significantly. In the normal operation of the coke oven, the temperature does not drop below 600ºC, the change of the masonry will not be large, and the stability and tightness of the masonry can be maintained for a long time.

 

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