Preheating Zone Refractory Bricks

• Customization: Available
• Feature: Long Time Materials
• Refractoriness (℃): 1580< Refractoriness< 1770
• Model NO.: DDR50
• Shape: Brick
• Type: Refractory Material
• Material: Synthetic Material
• Transport Package: Wooden Pallet
• Specification: Al2O3, SiO2, Fe2O3,
• Trademark: LZR
• Origin: Shandong
• HS Code: 6902200000
• Production Capacity: 100000tons

Product Description

Description:
Luzhong low thermal conductivity of anti-spalling bricks are new developed low density refractory bricks for Cement Rotary Kiln. In order to serve under severe conditions,LZR DDR bricks have excellent mechanical strength, good resistance to thermal shocking, and are highly resistant to chemical attack by vilatile alkaies and some slag. We manufacture and design DDR bricks to meet the requirements of a great variety of service condition.with excellent performance,our products have been wide used in the domestic and overseas cement projects.

Characteristics:
Excellent Chemical corrosion resistance
Great thermal mechanical stress
Low thermal conducitivity
Decrease the kiln shells load and the mechanical stress
Thermal shock resistance


Application: 
safety zone, preheating zone/calcining zone of cement rotary kiln.
 
Specification of the bricks:
1.TSynthetic materials
2.clay


Chemical composition and physical properterties

Chemical Composition		UNIT	SPEC	TYPICAL
Al2O3		%	≤55	51-55
SiO2		%		38-42
Fe2O3		%	≤1.5	1.5
Physical Properties		UNIT	SPEC	TYPICAL
Bulk Density	BD	g/cm3	≥2.4	2.25-2.35
Apparent Porosity	AP	%	/	17
Thermal Shock Resistance	TSR - in air at 1100 °C	cycle	≥10	10
Refractoriness Under Load	RUL (ta)	°C	≥1310	>1330
Thermal Expansion	TE - at 1000 °C	%		0.7
Cold Crushing Strength	CCS	MPa	≥80	80
Thermal Conductivity	TC - at 700 ±25°C	W/mK	≤1.8	1.8
Alkali Resistance	1100°C*5hours			first grade
Note: The above datas are the representative average value measured in accordance with the test methods for general purpose and vary with the fluctuations of normal production conditions.These datas are provided as a technical service,sometimes may be adjusted, so they should not be regarded as the product index.

Pictures of  other products






Company Information:
Founded in the 1979, reformed to joint-stock in 2002
Professional manufacturer of refractories for cement kilns, total production capacity is 200,000 t/a
The top 3 supplier of refractories for cement kilns in China
Complete technology provider (covering from basic to acid refractories) 70% products manufactured for cement industry
The 1st company to invent the Magnesia Hercynite brick in China
The 1st company to invent the Ceramic tube for preheater worldwide

Our Services:

• Free samples are available by freight collect;
• LZR will update you any production process after placing order.
• Strict QC & Fast delivery
• High quality goods, Perfect Pre-sales and after-sales service.
• Our special after-sales team to solve your problem on time.
• Any question will be get our feedback as soon as possible.

 

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• Packing and transportation
• Packaging :  Packed by sea-worthy wooden pallet + shrink plastic wrapped + carton  
•  Shipping : 384PCS/plt X 18plts in one 20 feet container;

FAQ
 

Q1 : Do you provide free samples?

A1 : Yes, free samples are available, generlly speaking, the buyer shall bear all the delivery cost. 

Q2 : How can you control your quality?

A2 : For each production processing, LZR have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods. 

Q3 : What is your lead time? 

A3 : It usually needs about 15- 20 days after receiving the PO. 

Q4 : What is your payments terms?

A4 : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms. 

Q5 : Are you a trading company or manufacturer?

A5 : We are a manufacture for more than 40 years history. And you are welcome to visit us. 



Why Choose Us

1) high seriousness and professional to solve your problems.  We are Manufacturer of refractory materials, so we can provide you Professional Solutions about your kiln problems. 

2)Our products sell to Europe, South Africa, Iran, Japan, Korea etc. in the past years. We have nice reputaion among our clients.

3) We  control our production time and quality. Gurantee our lead time.

4)We can provide you the aprroprate products for your satisfaction, and what you will get from us is our best effort in service and professionalism.