Magnesite Chrome Brick - Direct Bonded Magnesia-Chrome Brick
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Because of the advantage of easily adheringkiln crust and strong erosion resistance, the direct bonded magnesia chromebrick has acting the unchangeable part in burning zone of cement rotary kiln. However,the problem that magnesia chrome brick for cement kiln causes pollution becomesincreasing prominent, and the call for chrome free brick for cement kiln is increasing.
Before thecement industry eliminates magnesia chrome brick, direct bonded low chrome magnesiachrome brick should be chosen and used reasonably to decrease the pollution ofsexavalent chrome as far as possible and ensure the normal operation of cementkiln. Direct bonded low chrome magnesia chrome brick is featured with lowchrome content, high refractoriness under load, high crushing strength, andgood corrosion resistance.
Applications
Thebrick is an ideal transition product for all kinds of direct bonded magnesia chromebrick for cement rotary kiln burning zone before chrome free brick is used incement kiln.
item | index |
MgO,% ≥ | 88 |
Cr203 | 3-5 |
SiO2,% ≤ | 1 |
Apparent porosity, % ≤ | 17 |
Refractoriness under load℃[0.2MPa×0.6%] ≥ | 1700 |
Cold crushing strength MPa ≥ | 60 |
Thermal shock resistance，time [1100℃， water-cooling] ≥ | 7 |
- Q: What are the differences between magnesium chrome bricks, such as direct bonding, re bonding, semi bonding, CO sintering and chemical bonding? Hope expert advice..
- The fine powder compacts after calcination produced by magnesia - chrome ore grinding method, brick with magnesia coarse particles, are effective measures to eliminate the effect of loose. Compared with the common magnesia chrome brick, the magnesia chrome brick made by this method has lower porosity, higher compressive strength, higher softening temperature and higher flexural strength. Compacts with chrome magnesite powder, magnesia chrome brick by synthetic magnesia chrome sand made of high-temperature calcination, slag resistance and high temperature strength are better than other magnesite chrome brick. In addition, magnesite brick and electric arc furnace melting magnesium chromium material by direct casting (see Figure microstructure, color), fused magnesia chrome brick material produced by the process of melting particles combined with magnesia chrome brick etc..
- Q: Process for producing magnesia chrome brick
- The process of firing magnesia chrome bricks is roughly the same as that of magnesia bricks. In order to remove the bricks during sintering, due to MgO and Cr2O3, Al2O3 or direct bonding of magnesia chrome bricks
- Q: What are the environmental hazards of magnesia chrome refractory bricks?
- Nowadays, the use of magnesia chrome bricks, especially in cement kilns in the construction industry, has been required to be free of chromium, and the cement products shall not be tested with chromium.
- Q: How much is magnesium chrome brick a ton?
- The price of bricks in different places is not the same. The average price is about 3500 yuan
- Q: Magnesium chrome brick price?
- Dashiqiao magnesium brick factory of China Building Materials Academy is a joint stock company invested, constructed and managed by China Building Materials Academy.The plant was built in 1992, officially put into operation in 1993, covers an area of 89 thousand square meters, has a long 118 meters, an annual output of 30 thousand tons of high temperature tunnel kiln production line. The group has 1200 employees, 6 senior engineers, more than 20 engineers and technicians, and has strong technical force. Group's total assets of 5.5 million, with an annual output value of 600 million. Profit and tax 65 million yuan.
- Q: What are the types of magnesia chrome bricks for industrial use?
- 1. burned magnesia chrome bricks 2. magnesia chrome bricks 3. semi bonded magnesia chrome brick and magnesia chrome brick generally is the three
- Q: What is a half combination of magnesia chrome bricks?
- Opacifying particles as periclase spinel crystal structure, fully developed, as part of account of solution structure and matrix.
- Q: With different capacitance magnesia brick brick
- Hello, the magnesium chromium brick into common magnesia chrome brick, magnesia chrome bricks, half magnesia chrome brick, magnesia chrome brick, semi fused magnesia chrome brick, unburned magnesia chrome brick, magnesia chrome brick and magnesia chrome brick and directly combined with the distinction lies in 1: containing magnesia (raw material) the purity of 2: the sintering temperature of common magnesia chrome brick sintering temperature at 1550 DEG ~1600 DEG, direct the magnesium chromium brick sintering temperature is over 1700 DEG C, because of its more than 1700 DEG C, magnesia chrome brick, microstructure change and periclase chromium ore directly combined, so called direct bonded magnesia chrome brick. The performance of direct bonding magnesia chrome brick is better than that of common magnesia chrome brick
- Q: What is the difference between magnesia chrome brick and direct bonded magnesia chrome brick?
- The performance of direct bonding magnesia chrome brick is better than that of common magnesia chrome brick.
- Q: What are the main raw materials of magnesia chrome bricks?
- Magnesium alloys are alloys based on magnesium and other elements. Its characteristics are: small density (1.8g/cm3 magnesium alloy or so), high specific strength, high modulus of elasticity, good heat dissipation, good shock resistance, greater impact load capacity than aluminum alloy, good resistance to organic and alkaline corrosion. The main alloying elements are aluminum, zinc, manganese, cerium, thorium, and a small amount of zirconium or cadmium.
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Magnesite Chrome Brick - Direct Bonded Magnesia-Chrome Brick
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- Loading Port:
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- Min Order Qty:
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