Aluminum Electrolytic Cell Anti Seepage Material

The process of dry anti-seepage material for aluminum electrolytic cells is to use clay clinker as refractory aggregate, process the third-grade high-aluminum clinker into different granular aggregates and powders, use micro-powder technology and binder to add ultra-fine powder, use CA-50 cement as binder, and add dispersant and siliceous or feldspar anti-seepage agent to prepare and process. This material is mainly used for the working layer in high-temperature kilns, which can prevent the penetration of permeable raw materials such as Zn, Mg, and Al into the kiln.
Aluminum electrolytic cell anti-seepage material has good anti-penetration performance against substances such as Na and NaF. Aluminum electrolytic cell anti-seepage material has the ability to prevent the cell lining from being eroded by cryolite, steam and aluminum liquid penetration, and can protect the electrolytic cell insulation layer and extend the service life of the aluminum electrolytic cell.

Send Inquiry

Description

Dry anti-seepage materials for aluminum electrolytic cells

Metal aluminum is generally produced by cryolite-alumina molten salt electrolysis. The main equipment is the aluminum electrolytic cell, and the lining is built with materials such as carbon bricks, refractory bricks and thermal insulation bricks. During the production of electrolytic aluminum, the cell lining is corroded by cryolite, and the vapor of Na and NaF and aluminum liquid penetrate into the refractory bricks and thermal insulation bricks on the side walls through the seams of carbon bricks, and penetrate into the insulation layer through the carbon cathode at the bottom of the cell, resulting in a reduction in the life of the aluminum electrolytic cell. For this reason, dry anti-seepage materials for aluminum electrolytic cells on the side walls and dry anti-seepage materials for the cell bottom have been developed.

Dry anti-seepage materials for aluminum electrolytic cells use clay clinker as refractory aggregate, third-grade bauxite clinker as refractory powder, add ultrafine powder, use CA-70 cement as a binder, and add dispersant and siliceous or feldspar anti-seepage agents. Its main properties: Al2O344%, SiO249%, volume density ≥2.23g/cm3, compressive strength after burning at 110℃ and 1000℃ is 40MPa and 70MPa respectively, linear change after burning at 1000℃ is <-0.3%, thermal conductivity at 350℃ is about 0.55W (m·K). Dry anti-seepage material for aluminum electrolytic cell is used between carbon bricks and insulation layer of aluminum electrolytic cell side wall, which can prevent the penetration of substances such as Na and NaF, and also protect the insulation layer.

The bone powder mass critical particle size of dry anti-seepage material for aluminum electrolytic cell is 3mm, which is directly laid on the bottom insulation layer with a thickness of 100~150mm.

Product Features

Dry anti-seepage material for aluminum electrolytic cell has the characteristics of convenient construction, repeated use, good anti-seepage effect, good thermal insulation performance, strong volume stability, corrosion resistance, etc. It can effectively reduce the consumption of fluoride salt and extend the service life of aluminum electrolytic cell.

Performance table

Physicochemical indexes of dry anti-seepage material for aluminum electrolytic cell

project	HX-GF
Al₂O₃+SiO₂(%)	≥90
Loose bulk density (g/cm³)	≥1.40
Compacted density (g/cm³)	≥1.90
Refractoriness (℃)	≥1400
650℃ Thermal Conductivity [W/(m·K)]	≤0.45
Application area	Aluminum electrolytic cell cathode carbon block and thermal insulation lining

Hot Tags: aluminum electrolytic cell anti seepage material, China aluminum electrolytic cell anti seepage material manufacturers, suppliers, factory, Bracket Brick, Explosion Proof Castable, Low Cement Refractory Castable, Steel Fiber Wear-resistant Castable, Self Flowing Castable, Anti Seepage High Alumina Brick