Wet process refractory mortar

Abstract

The invention relates to wet process refractory mortar which comprises the following raw materials by weight: 25-50 parts of white fused alumina powder with the granularity of not more than 180 meshes, 40-65 parts of the white fused alumina powder with the granularity of not more than 320 meshes, 1-5 parts of phosphate binder, 1-4 parts of plasticizer, 1-3 parts of water retention agent, 0.1-1 part of resin type preservative, 0.05-0.5 part of preservative agent and 0-10 parts of Cr2O3 powder with the granularity of not more than 320 meshes, the wet process refractory mortar is prepared by uniformly stirring the raw materials, adding 12-18 parts of water, continuously uniformly stirring, and then loading into a plastic bag for sealing and preserving, and the preservation period is a year and a half to two years.

Description

technical field [0001] The invention relates to a refractory mud in a wet state during storage, transportation and use, and belongs to the field of refractory materials. Background technique [0002] Refractory mud is a kind of amorphous refractory material, which is often used as refractory masonry joints, so it is also called joint compound. In terms of its composition, it is composed of a certain proportion of refractory base material, binder and other additives; among them, the refractory base material of refractory mud mainly includes clay, high alumina, corundum, mullite, and silicon , Magnesium, carbon, etc. The binders mainly include phosphate binders, water glass binders and organic binders. In addition to the use of organic binders, the rest of the refractory mud needs to be added with water. [0003] The traditional refractory mud is dry mud. The use of dry mud generally needs to transport the dry powdered refractory mud to the construction site, add binder or w...

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Problems solved by technology

[0005] In the above technology, although the wet refractory mud is packed into a plastic bag and stored in a hard plastic barrel, the raw material composition of the refractory mud cannot form a dense refractory mud structure, and the hole gap of the prepared wet refractory mud Larger, as the storage time prolongs, the acidic gas in the atmosphere can easily penetrate into the wet mud through these pores, so that the calcium, silicon, calcium hydroxide hydrate and other alkaline substances in the mud are converted into neutral Precipitation, thereby hardening the mud and losing its use performance, so the storage period of the wet mud in the above technology is short, and after the package is opened, the wet refractory mud is easy to harden due to the contact of the wet refractory mud with a large amount of acid gas in the atmosphere, so opening The storage time of wet refractory mud after packaging is very short, so it needs to be used up as soon as possible