high heat Alumina Checker Brick For Hot Blast Stove Of Medium And Large Size Blast Furnace

Production process:

The production methods of High Heat Alumina Checker Brick​ ​​ and clay bricks are basically the same.

Only some process parameters are different. There are also processes such as crushing → mixing → molding → drying → firing → inspection → packaging.

The compressive stress is better at low temperature, but slightly reduced at high temperature, so the stack in the kiln is less than 1 meter. The production process of high-alumina refractory bricks and multi-clinker clay bricks is similar.

The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90%-9%. The clinker needs to be sorted and sieved before crushing. The firing temperature is higher. For example, high-alumina refractory bricks such as Ⅰ and Ⅱ are generally 1500～1600℃ when fired in tunnel kiln.

Production practice proves that high-alumina clinker is strictly selected and classified before crushing, and is stored in tiers. The co-fine grinding method of bauxite clinker and combined clay can improve the quality of high-alumina refractory brick

Aluminum oxide (Al2O3) content is higher than 48% High Heat Alumina Checker Brick​

A neutral refractory with an alumina content of more than 48%.Made of bauxite or other raw materials of high alumina content after molding and calcining.High thermal stability, refractoriness in 1770℃ above.Good slag resistance, used for lining steelmaking electric furnace, glass furnace, cement converter, etc.

High charge soft, High Heat Alumina Checker Brick​ is a high grade refractory material made of super grade bauxite, fused corundum and fused mullite.

Feature
1. Better Cold Crushing Strength
2. High Refractoriness Under Load
3. Better Thermal Shock Resistance
4. Low Reheating Linear Rate

Applications:

1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace
Standard sizing: 230 x 114 x 65 mm others up to the client

Zhengzhou Annec CO., Ltd. was founded in 2003, and has been a NASDAQ listed corporation since 2011 with ticker identification ANNC. Annec had become the industrial leader within China in the areas of refractory production, Engineering for hot blast stove of blast furnace, and capability for EPC project. Annec has its own Provincial Enterprise Technology Center and Top Combustion Hot Blast Stove Research Centre, Annec (Beijing) Engineering & Technology Co., Ltd and four Manufacturers for Refractories. The annual output of different type of refractories can reach 150 thousand tons, and undertaken capability of more than 10 turnkey projects for hot blast stove.

Annec is a national hi-tech company, and is accredited with ISO9001:2008 quality control system standards, ISO12001:2004 environmental control system standards, and GB/T28001-2011 HAZOPS. Annec has set up a thorough and effective management system with practical considerations for her employees and community, and is persistent in promoting employee self-value and product quality. With these efforts, Annec was awarded the prestigious 2012 Zhengzhou Mayor Quality Prize.