Tungsten tailing sand exterior wall putty and preparation method thereof

Abstract

The invention discloses tungsten tailing sand exterior wall putty and a preparation method thereof, and solves the technical problems that in the prior art, tungsten tailing sand contains a large amount of argillaceous minerals, and a traditional method of purely adding an expanding agent must ensure that a large amount of water exists in the interior to play a role and is not suitable for preparation of putty. The invention discloses a tungsten tailing sand-based composite material which comprises 85.0%-93.0% of tungsten tailing sand, 0.3%-0.5% of cellulose ether, 1%-5% of an expanding agent, 0.5%-1% of wood fiber, 0.05%-0.1% of a shrinkage reducing agent, 5%-10% of cement and 2.0%-6.0% of latex powder. The sum of the mass percentages of the components is 100%. According to the characteristics of shrinkage in each stage, various additives are used for combined action, and the total shrinkage amount is controlled within a reasonable range, so that application of the tungsten tailing sand becomes possible, and the problems of accumulation of the non-tailing sand and environmental damage caused by land occupation are reduced; in the production of the putty, the tungsten tailing sand is proper in fineness, does not need to be continuously processed and is low in price, so that the production cost of the exterior wall putty is remarkably reduced.

Description

technical field [0001] The invention relates to an exterior wall putty and a preparation method thereof, in particular to a tungsten tailings sand exterior wall putty and a preparation method thereof. Background technique [0002] Tungsten, known as "industrial monosodium glutamate", is widely used in cutting tools, drill bits, armor-piercing bullets and electronic devices, and is one of the indispensable materials in modern industry. However, the grade of tungsten ore is generally low, ranging from 0.1% to 0.7%, resulting in a large amount of tailings during the beneficiation process, accounting for more than 90% of the original ore. my country discharges more than 400,000 tons of tungsten tailings every year, most of which have not been effectively utilized, and the current stockpiles have reached more than 10 million tons. [0003] Existing exterior wall putty generally uses limestone powder or heavy calcium powder as the main filler, but there are the following problems...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of tungsten tailings sand exterior wall putty and its preparation method, to solve the problem that tungsten tailings sand contains a large amount of clay minerals in the prior art, and the traditional method of simply adding expansion agent must ensure that there is a large amount of water inside. To play a role, not suitable for technical problems in the preparation of putty