Tongliao Taiding Environmental Protection Technology Co.Ltd
Magnesium-chromium bricks and high-aluminum bricks for lead refining reflector furnace application description
Tongliao Taiding Environmental Protection Technology Co.Ltd. was established in 2009, is located in Tongliao Kezuoqi Ganqiqa Industrial Park, is a collection of waste lead-acid batteries and leaded waste recycling and reuse of large-scale green recycling economy in one of the enterprises, is the largest recycled lead-acid battery recycling and disposal of recycling bases in Northeast China and the eastern part of Inner Mongolia.
With the vision of "advocating green energy, low carbon and environmental protection", the company never forgets its industrial, social and environmental responsibilities, adheres to the corporate purpose of "gratitude, dedication, green and innovation", is open and inclusive, and promotes the rapid development of the enterprise, and is committed to building an industrial base for the comprehensive disposal and utilization of renewable resources and leaded waste. We are committed to building an industrial base for the comprehensive disposal and utilization of renewable resources and lead-containing wastes.
This enterprise uses reflector furnace to extract lead from used lead-acid batteries, and our company has designed a reliable application program for refractory products in combination with the actual use of reflector furnace:
Reflector furnace wall working layer slag line (liquid surface) and the following parts of the use of electrofusion semi-recombined magnesium-chromium bricks, in order to improve the electrofusion semi-recombined magnesium-chromium bricks slag erosion resistance, to extend the life of the brick, we electrofusion semi-recombined magnesium-chromium bricks salt immersion process, salt immersion of magnesium-chromium bricks can be improved after the bricks of corrosion resistance, the main reason for the following aspects:
Firstly, the ions of magnesium, calcium and sodium in the salt solution can interact with the chromium oxide and magnesium-aluminum spinel in the magnesium-chromium brick to form new compounds. These compounds have a high melting point and good anti-slagging performance, which can effectively prevent the formation of slagging on the surface of magnesium-chromium bricks.
Secondly, the ions in the salt solution are also able to fill the micropores and cracks inside the magnesium-chromium bricks, increasing the denseness and compactness of the material, thus improving the corrosion resistance.
In addition, the salt-impregnated treatment also enables the magnesium-chromium bricks to form a dense chromium oxide layer on the surface, which further improves the corrosion resistance of the material.
The upper part of the furnace wall (above the liquid level) is made of directly bonded magnesium-chromium bricks. Directly bonded magnesium-chromium bricks are more cost-effective and can meet the service life synchronized with that of the electrofused, semi-reconducted magnesium-chromium bricks used in the lower part of the reflector furnace.
The roof and external walls of the furnace are made of special high alumina bricks, which can also withstand the high temperatures of the reflector furnace and can be reused many times due to the advantages of high density and high strength of the special high alumina bricks.
Our company for the enterprise reflector furnace so designed working lining and permanent lining not only extends the overall working time of the reflector furnace, reduce the number of furnace maintenance, but also for the customer to greatly reduce the consumption cost of refractory, has been recognized by the customer satisfaction.