Wear-resisting high strength refractory bricks are using corundum ,carborundum and high alumina as main raw materials ,it is formed by high temperature sintering through matrix strengthening and pellet’s combination tightly and mix with compound binder .it has characteristics of high strength compression 、high abrasion resistance , steady volume and good thermal shock performance.
CFB boiler wear-resisting high strength refractory bricks
Technical performance index :
|Project and Grade||DFNMZ- 1||DFNMZ-2||DFNMZ-3|
|A1203 %||≥ 70||≥ 75||≥ 80|
|Refractoriness ℃||≥ 1790||≥ 1790||≥ 1790|
|Compression strength under normal temperature (MPa)||≥ 70||≥ 80||≥ 100|
|Breaking strength under normal temperature MPa(110℃ x24h)||≥ 10||≥ 12||≥ 14|
|Refractoriness-under-load beginning temperature ℃||≥ 1450||≥ 1550||≥ 1650|
|Thermal shock resistance 900℃(water cooling)||≥ 25||≥ 20||≥ 20|
|Abrasive resistance cc (ASTMC-704)||7||6||5|
W/m.k( under 1000℃)
|Highest using temperature ℃||1400||1500||1600|
|Usage part||Severe wear parts of Refeeder、cyclone separator、furnace wall of mixing chamber|
Remark: We could adjust technical performance index according to client’s working condition.
Application of wear-resisting high strength refractory bricks :
Wear-resisting high strength refractory brick is widely used in petroleum,chemical industry,metallurgy,electric power, chemical fiber,paper making,pharmacy,chemical fertilizers,plating chamber and tower, pool,cans and other anti-corrosion engineering,for the flue,chimney lining of thermal power plant,coke oven roof, cold coke tower,storage tank and sieve focal system slip focal slot lining,anticorrosive device,acid resistance pool,acid resistance ground, wear-resisting ground etc.
The quality assurance system consists of the following steps:
- a.Inspection and Control of incoming raw materials:According to the chemical content,raw materials are classified into different levels to ensure quality of brick first.
- b.Inspection and control of the process:During the production,every brick will be weighed twice strictly to reduce the error of weight .
- c.Inspection of product Standardization of quality of each product by process control and experimentation.
- d.Taking corrective measures whenever deviations are noted.
- e.Quality audit by quality management.Before delivery, the inspectors will inspect the size,appearance,physical and chemical properties of brick again in factory.
This series of light weight insulating brick has very good creep resistance ,higher breaking strength and smaller reheating linear change rate and lower heat conductivity and good thermal insulation property which is the excellent thermal insulating materials of industrial power station power and high temperature equipment. …
High alumina refractory brick use high alumina as main raw materials, it is formed by high temperature sintering through matrix strengthening with the pellet’s tight coupling and add combined binder . it has characteristics of high compression strength and refractoriness-under-load and antistripping which is suitable for the lining of CFB boiler and other thermal furnaces . …
1.FEDEX/DHL/UPS/TNT for samples.
2.By Sea for batch goods.
3.Customers specifying freight forwarders or negotiable shipping methods!
4.Delivery Time:3 days for common shape samples;15 days for special shape samples.Within 30 days for batch goods.
1.Payment: T/T, Western Union,LC; Usually 30% paid by T/T as deposit,the rest 70% balance paid by T/T before delivery .
2.MOQ: Usually 1Tons,Customers can order certain PCS for special brick.
3.Quality Warranty: 3years.
1.On wooden pallets with plastic cover.
2.According to customer’s requirements.