Composite Fireclay Refractory Brick for Coke Oven Ascension Pipe

• Refractoriness (℃): 1580< Refractoriness< 1770
• 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.
• Model NO.: LZ55
• Shape: Brick
• Material: Alumina Block
• Al2O3: 55%
• CCS: 50MPa
• Shaped: Customized
• Transport Package: on Fumigated Wooden Pallets
• Specification: customized
• Trademark: KAIYUAN
• Origin: China
• HS Code: 690220000
• Production Capacity: 5000tons/Month
• Package Size: 1000.00cm * 1000.00cm * 800.00cm
• Package Gross Weight: 1320.000kg

Product Description

Coke Oven Ascension Pipe Refractory High Alumina Brick
The Description:

Coke oven is a kind of thermal equipment with long service life, complex structure and continuous production of coke and chemical products after heating coal to 950~1100ºC. Today, we introduce the relevant content of high-aluminum refractory brick and refractory mud for coke oven.

High aluminum refractory brick is a refractory product with AL2O3 content of more than 48% in aluminum silicate refractory. According to the composition of the main minerals in the products, the high alumina refractory products are divided into four categories: mullite - corundum, corundum - mullite, mullite and corundum. If according to the level of AL2O3 content, the common use of high aluminum bricks are divided into three levels, that is, a grade AL2O3>65%; Second grade AL2O355% ~ 65%; Tertiary product AL2O348% ~ 55%.

Technial Index:

Items	DRL-130	DRL-127	DRL-125	DRL-120
Al2O3 %                        ≥	60	50	45	35
Fe2O3 % (≤)	1.5	1.8	1.8	2.5
Apparent porosity %        ≤	22	23	23	24
Bulk Density g/cm3 ≥	2.2	2.2	2.15	2.1
CCS ,MPa (≥)	50	40	40	30
Creep rate 0.2Mpa  1300ºC*50h%	0.8	0.8	0.8	0.8
Permanent linear change%	0.1-0.4	0.1-0.4	0.1-0.4	0.1-0.4

 The Feature:

(1) The refractoriness of high aluminum firebrick, its refractoriness in aluminum silicate refractory is relatively high, with the increase of AL2O3 content in the product and the refractoriness is improved, generally not less than 1750 ~ 1790ºC. If the AL2O3 content is greater than 95% of corundum products, its refractoriness can be as high as 1900 ~ 2000ºC.

 

(2) The load softening temperature of high aluminum refractory brick decreases with the increase of SiO2 and metal oxide content in the product, and the load softening temperature of high aluminum brick is generally 1420 ~ 1530ºC. For corundum products with AL2O3 content greater than 95%, the load softening temperature is above 1600ºC.

 

(3) The slag resistance of high aluminum refractory brick, because the AL2O3 content in the product is high and neutral, it has strong erosion resistance to acidic or alkaline slag.

 

(4) The thermal shock resistance of high aluminum refractory brick, in its products there are two kinds of crystal corundum and mullite coexist, and the linear expansion coefficient of corundum is larger than the linear expansion coefficient of mullite, so when the temperature changes, due to the difference in the expansion of the product and stress concentration, so the thermal shock resistance of high aluminum brick is poor, and the general water cooling times are only 3 to 5 times.

 

(5) The reburning line of high aluminum refractory brick changes according to the degree of burning of the product. If the burning temperature is sufficient, the burning Yan is sufficient, the volume is stable, and the heavy burning line changes little. On the contrary, due to recrystallization within the product, residual shrinkage will occur.
Company main products and profile:

Why choose us?

Zhengzhou Kaiyuan Refractory Co., Ltd. is a high-temperature kiln overall solution service provider integrating R&D, production, kiln solutions, and engineering construction. Zhengzhou Kaiyuan has subsidiaries such as Zhengzhou Linghui New Material Co., Ltd., Zhengzhou Kaiyuan Guangda Refractory Material Co., Ltd, Zhengzhou Dezhen Industrial Co.,Ltd. Our company is headquartered in Xinmi City, Henan Province China, with 200 employees, including 30 professional and technical personnel. The company has two aluminum-silicon series refractory production lines, one silicon series production line, and one unshaped refractory material production line. The annual production capacity is 150,000 tons, including 50,000 tons/year of aluminum-silicon series refractory bricks, 50,000 tons/month of silica bricks, and 50,000 tons/month of unshaped refractory materials.
Our products are widely used in iron & steel, cement, non-ferrous metals, glass, petrochemical, ceramics and other industries. The main production are clay bricks, high alumina bricks, silica bricks, mullite bricks, andalusite bricks, corundum bricks, sillimanite bricks, silicon carbide bricks, phosphate bricks, cordierite bricks, thermal insulation bricks, castables, mortar, ramming mix, etc. The products sell well domestic and are exported to many overseas countries (UK, Germany, Italy, Austria, Russia, Uzbekistan, Egypt, Bahrain, United Arab Emirates, India, Japan, South Korea, etc.).
The development of Kaiyuan Company is inseparable from the care and help of old and new friends. Kaiyuan people will adhere to the philosophy of "honesty and trustworthiness" and the business philosophy of "integrity, quality, service and innovation", and will continue to improve with more friends. Extensive and in-depth cooperation, together in the same boat, to create a better future.

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

 

Certificates
Main Products


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