Production method for attapulgite fire-resistant ceramsite insulation board

Abstract

The invention discloses a production method for an attapulgite fire-resistant ceramsite insulation board. The key points of the technical scheme provided by the invention are that the production method comprises the following steps of: stirring and pressing an accessory of the attapulgite fire-resistant ceramsite insulation board to form semi-finished products of the attapulgite fire-resistant ceramsite insulation board with different shapes; and conveying the semi-finished products to a tunnel kiln for sintering to obtain a finished product of the attapulgite fire-resistant ceramsite insulation board. The accessory of the attapulgite fire-resistant ceramsite insulation board consists of high-viscosity attapulgite clay powder, attapulgite clay tailing powder, spherical attapulgite fire-resistant ceramsite, volcaniclastic rock mixture, bentonite tailing powder and straw powder. The attapulgite fire-resistant ceramsite insulation board has the characteristics of favorable flatness, light weight, low heat conducting coefficient, high refractoriness, corrosion resistance and favorable heat preserving and heat insulating effect. A large amount of various wastes are adopted in the accessory of the attapulgite fire-resistant ceramsite insulation board disclosed by the invention, and thus the improvement on the recycling rate is facilitated and wastes are changed into valuables; and in addition, the occupied land can be reduced, the environment is protected and purified and energy sources are saved. The attapulgite fire-resistant ceramsite insulation board is suitable for construction of various refractory projects.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a production method of an attapulgite refractory ceramsite insulation board. Background technique [0002] 80% of my country's mineral resources are associated mines, a large amount of valuable resources are stored in tailings, and tailings stockpiles require a large amount of land. Many tailings ponds have been used beyond the time limit or overloaded, or even operated in violation of regulations, which has caused great safety hazards in the tailings ponds and posed a serious threat to the property and life safety of people in surrounding areas. [0003] In addition to attapulgite, attapulgite clay often contains minerals such as montmorillonite, kaolinite, hydromica, sepiolite, quartz, opal and carbonate. [0004] Pyroclastic rocks coexist with attapulgite clay deposits. Pyroclastic rocks are mostly in the upper layer of attapulgite clay deposits. In some attapulgite clay dep...

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Problems solved by technology

[0004]Pyroclastic rocks coexist with attapulgite clay deposits, and pyroclastic rocks are mostly in the upper layer of attapulgite clay deposits, and some attapulgite clay deposits The thickness of the pyroclastic rock layer in the upper layer of the mining area is as high as tens of meters. During the mining process of attapulgite clay, the pyroclastic rock in the upper layer of the attapulgite clay mining area is discarded as waste. According to field investigations, every ton of attapulgite clay mined There are more than 30 tons of pyroclastic rocks produced by stone clay. Based on the annual output of 150,000 tons, the pyroclastic rocks produced are as high as 4.5 million tons. They have not been utilized for many years, and the entire mining area is full of redeposited volcanoes. Clastic rock mixture, causing serious waste of resources and economic losses