Description
Description:
Magnesia hercynite brick is a new generation of large-scale rotary kiln firing zone with chromium-free alkaline refractory material, they have the characteristics of high compressive strength, good thermal shock stability, good thermal creep resistance, resistance to erosion and penetration, and high load softening temperature. At the same time, they are also easier than direct combination of magnesia chrome bricks. the use of iron oxide in magnesium oxide solid melting characteristics using patented hercynite as a raw material, which have better kiln coating effect.Features:• The better synthetic purity and activity of self-developed sintered hercynite than fused hercynite's• Outstanding formation of uniform and stable coating• Excellent thermal shock stability through the precipitation of spinel in the crystal• Low thermal conductivity, the outside temperature of kiln shell is between 230~280ºCApplication:
Sintering/burning zone of cement rotary kiln.Chemical composition and physical properterties| Chemical Composition | UNIT | SPEC | TYPICAL |
| MgO | % | ≥85 | 85 - 88 |
| Al2O3 | % | | 4-6 |
| SiO2 | % | | 4 |
| Fe2O3 | % | | 0.7 |
| CaO | % | | 1.4 |
| Physical Properties | UNIT | SPEC | TYPICAL |
| Bulk Density | g/cm3 | ≥2.9 | 2.9-3.0 |
| Apparent Porosity | % | ≤17 | 14-17 |
| Thermal Shock Resistance- in air at 950 °C | cycle | ≥100 | 100 |
| Refractoriness Under Load | °C | ≥1650 | >1165 |
| Thermal Expansion- at 1000 °C | % | | 1.3 |
| Cold Crushing Strength | MPa | ≥45 | 60 |
| Thermal Conductivity- at 300 °C | W/mK | | 3.5 |
| 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. |
Picture of productsPackage and transportation•Packing : Packed by sea-worthy wooden pallet + shrink plastic wrapped + corrugated boardQuality ControlWe are very careful in quality control so we control it from the beginning the raw material to the final productsCompany Profile:•
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 worldwideOur Services:• Whole package refractory linings design for the kilns;
• Efficient and economical refractories recommendations;
• Provide the sample properties test report from authority institute (SGS or CNAS);
• Kilns linings installation supervision, inspection, evaluation on site;
• Offer measurement of the changes of the roundness in the rotary kiln shell during operation (Ovality measurement).
• Cooperated research and development, provide the best suitable products for different working conditions of the kilns;
• Adjoining one biggest seaport of East China-Qingdao Port, convenient logistics.
Production FacilityR&D EquipmentISO Certificate and patented certificateExhibition and customer visit FAQQ1 : 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 : Delivery Time:
(1) Peak time(Nov 1st-Feb 15th next year) Within 60 days from the date of receiving the advance payment
(2) Normal time (Feb 16th-Oct 31th) Within 30 days from the date of receiving the advance payment 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.Q6 : What standards do you have?A6 : Our products meet the standards, such as ASTM, ASME, AMS, DIN, JIS etc. The third party testing is all available for us.
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