Attapulgite and shale sintered refractory heat-preserving block

Abstract

The invention discloses an attapulgite and shale sintered refractory heat-preserving block which is technically characterized in that the components of the block comprise attapulgite clay tailing powder, shale powder, high bauxite powder, spherical attapulgite refractory ceramsite, pyroclastic rock mixture, bentonite tailing powder, diatomaceous earth tailing powder and straw powder. The attapulgite and shale sintered refractory heat-preserving block is prepared according to the following steps: stirring the components of the block uniformly, conveying into a full-automatic block making machine, pressing into a semi-finished product, airing the semi-finished product naturally, conveying into a tunnel kiln, and sintering into the finished product which is the attapulgite and shale sintered refractory heat-preserving block. The attapulgite and shale sintered refractory heat-preserving block has the characteristics of high strength, heat preservation, energy saving, heat and sound insulation, fire resistance and flame retardance. Because the components of the block provided by the invention include a large amount of waste, the utilization rate of resources is improved, the waste is changed into thing of value, less land is occupied, the environment is protected and purified, and energy is saved. The attapulgite and shale sintered refractory heat-preserving block is suitable for the wall construction of the refractory heat-preserving engineering.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an attapulgite shale refractory sintered thermal insulation block. Background technique [0002] New wall materials mainly refer to building materials mechanized from non-clay resources such as sandstone, shale, industrial solid waste, and construction residual soil, which have the functions of protecting land, protecting the environment, saving energy, utilizing waste, increasing strength and economical Applicable and other characteristics, compared with solid clay bricks, shale blocks have the biggest advantages in that their production does not destroy cultivated land and consumes less energy, which is in line with the national technological development policy. [0003] Shale is a rock formed by the extrusion of clay in the crustal movement. It has sheet-like or thin-sheet bedding. It is easy to break into pieces when hit with a hard object. Shale is not viscous, and its plas...

AI Technical Summary

Problems solved by technology

[0006] Pyroclastic rocks coexist with attapulgite clay deposits. Pyroclastic rocks are mostly in the upper layer of attapulgite clay deposits. In some attapulgite clay deposits, the thickness of pyroclastic rock layers in the upper layer is as high as tens of meters. During the mining process of attapulgite clay, the pyroclastic rocks in the upper layer of the attapulgite clay mining area are discarded as waste. According to field investigations, more than 30 tons of pyroclastic rocks are produced for every ton of attapulgite clay mined. Calculated at an output of 150,000 tons, the pyroclastic rock produced is as high as 4.5 million tons, which has not been utilized for many years. The entire mining area is full of re-accumulated pyroclastic rock mixture, causing serious waste of resources and economic losses.