Refractory Materials for Incinerators in Petrochemical Industry

The petrochemical industry incinerator is an intermittent working kiln, and the lining mainly uses high alumina bricks, refractory castables, refractory plastics, etc. The working environment of the incinerator is harsh, and the inner lining is damaged by various chemical erosion, physical erosion, and mechanical stress.

High-Quality High Alumina Bricks for Sale

Refractory materials used in incinerators in the petrochemical industry have higher requirements than general industrial kilns. Not only must it withstand high temperatures, but it must also have excellent corrosion resistance, wear resistance, and high-temperature stability. In the petrochemical refining industry, tail liquid vertical incinerators are more common. The main operating mechanism of the incinerator is to oxidize and burn the toxic organic matter in the petrochemical tail liquid, convert it into harmless gas and then empty it.

Under the normal atomization condition of the tail liquid nozzle of the incinerator, the refractory material of the incinerator lining receives a lighter thermal shock. However, the tail fluid nozzle often fails to atomize normally. The tail liquid is directly sprayed on the furnace lining without being atomized, and the refractory material of the furnace lining is directly washed by the tail liquid; the local temperature drops sharply, forming a temperature difference with the surrounding furnace lining, and internal stress is generated. When the internal stress exceeds the strength of the furnace lining, cracks will occur, and the cracks will gradually expand, causing fractures. Under the scouring of the tail liquid, the refractory material of the furnace lining continuously falls off.

High Strength Refractory Castable

When incinerators in the petrochemical industry use high-alumina bricks as lining, their life span does not exceed one year. Frequent shutdown and maintenance affect the economic benefits of the enterprise. After the furnace lining is changed to high wear-resistant refractory castable, it has strong integrity, good air-tightness, strong heat shock resistance, and erosion resistance, and the lining is replaced after 12 months of continuous use. When the furnace is shut down for inspection, a small amount of refractory coating can be applied to the severely damaged area to extend the service life of the overall furnace lining.

Castable manufacturers also constantly improve the lining material through different problems in the actual use process. At present, some castables have been changed to wear-resistant plastics, and the use temperature of refractory plastics is 1200-1400℃. Moreover, the advantages of refractory plastics are high refractoriness, good volume stability at high temperatures, good thermal shock resistance, easy construction, no oven in the later stage, and easy operation during maintenance.

In short, with the development of refractory technology, there will be more new applications of micro powder technology castables. In particular, the erosion of toxic oxides makes the lining of incinerators in the petrochemical industry more scientific and reasonable.

Refractory Plastic for the Lining Repair

Rongsheng refractory material manufacturer and sales manufacturer has an advanced and fully automatic unshaped refractory material production line. The annual output of 80,000 tons. Rongsheng's refractory products have been used in thermal furnace equipment in more than 60 countries around the world. Rongsheng's refractory products not only solve the problem of refractory lining for customers but also extend the service life of the refractory lining. It saves production costs for enterprises and improves economic efficiency. For more information on refractory materials, please visit our website: https://rongshengrefractory.com/.