Tap hole reclaimed material recycled quick-dry anti-explosion castable

Abstract

The invention discloses a tap hole reclaimed material recycled quick-dry anti-explosion castable which comprises the following components in parts by mass: 15-30 parts of electrically-fused dense corundum, 5-10 parts of brown fused alumina fresh material, 3-5 parts of brown fused alumina reclaimed material, 5-10 parts of mullite fresh material, 3-5 parts of mullite reclaimed material, 4-8 parts of silicon carbide, 4-6 parts of graphite, 2-5 parts of binding agent which is a mixture of pure calcium aluminate cement and nanometer silica-alumina gel powder, 3-8 parts of polycarboxylate superplasticizer, and 0.5-2 parts of compound anti-explosion agent. The tap hole reclaimed material recycled quick-dry anti-explosion castable has the beneficial effects that by adopting brown fused alumina reclaimed material and mullite reclaimed material, waste materials can be sufficiently utilized so as to reduce the cost of industrial products in the iron and steel industry, the condensation time can be effectively controlled by specially proportioning aggregate materials with different properties and particles and adding additional additives, the hardening time of the castable can be shortened, the quick-dry anti-explosion properties are good, the construction efficiency is improved, on-schedule tapping of a blast furnace can be guaranteed, and the service life of the castable can be prolonged.

Description

【Technical field】 [0001] The invention relates to the technical field of refractory materials, in particular to a quick-drying explosion-proof castable for recycling taphole recycled materials. 【Background technique】 [0002] my country is a big steel producing country in the world and consumes a lot of refractory materials. Nowadays, many companies have developed non-baking castables, most of which use industrial phosphoric acid solution and resin as binders, which can be used to cast the main ditch as a whole. Cracks are also easy to occur during the cooling process of the main ditch, which brings safety to the normal iron tapping of the main ditch. There are hidden dangers, and a large amount of harmful smoke and dust will be generated during use. The high-temperature performance is still not as good as that of cement-bonded castables. When repairing, the entire main ditch must be cleaned and properly cooled before construction. [0003] Al 2 o 3 -SiC-C castables are g...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art, and to propose a quick-drying explosion-proof castable for the recycling of taphole recycled materials, which can meet the current use requirements of the main ditch, solve the problem of normal temperature construction in winter, and achieve The recycling of recycled materials can also shorten the pouring construction time of castables and improve the explosion-proof performance