Autoclaved asphalt tailings slag brick and preparation method thereof

A technology for slag bricks and tailings slag is applied in the field of autoclaved asphalt tailings slag bricks and their preparation, and achieves the effects of being beneficial to comprehensive utilization, energy saving, good physical and mechanical properties and durability

Active Publication Date: 2017-03-15
SICHUAN FANGDA NEW BUILDING MATERIAL DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report of asphalt tailings slag bricks at home and abroad

Method used

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  • Autoclaved asphalt tailings slag brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Raw materials: quicklime 800kg, cement 500kg, fine river sand 4000kg, asphalt tailings slag 4700kg

[0045] Put the above-mentioned raw materials into the high-speed mixer and add 750kg of water while stirring. After stirring evenly, send them to the digestion bin for digestion for 2 to 3 hours, and then put them into the high-speed blender in the order of entering the bin for secondary mixing and adding water to make the mixture The material becomes a billet with a water content of 8-10%, and the billet is sent to the HF1280 automatic hydraulic brick press to be pressed into a 240×115×53mm brick, and then the MD76 automatic coder is taken out from the brick press according to the regulations. Stacked on the autoclave trolley. The autoclaved trolleys that have been stacked with bricks are formed into a row, pulled into the autoclave by the tractor, the lid of the autoclave is closed, the air in the autoclave is exhausted (30 minutes), and the autoclave maintenance syste...

Embodiment 2

[0047] Raw materials: quicklime 1200kg, fine river sand 3000kg, medium river sand 1000kg, asphalt tailings slag 4800kg

[0048] Put the above raw materials into the high-speed mixer and add 750kg of water while stirring. After stirring evenly, send them to the digestion bin for digestion for 2-3 hours, and then put them into the high-speed mixer in the order of entering the bin for secondary mixing and adding water to make the mixture The material becomes a billet with a water content of 8-10%, and the billet is sent to the HF1280 automatic hydraulic brick press to be pressed into a 240×115×53mm brick, and then the MD76 automatic coder is taken out from the brick press according to the regulations. Stacked on the autoclave trolley. The autoclaved trolleys that have been stacked with bricks are formed into a row, pulled into the autoclave by the tractor, the lid of the autoclave is closed, the air in the autoclave is exhausted (30 minutes), and the autoclave maintenance system ...

Embodiment 3

[0050] Raw materials: quicklime 800kg, fine river sand 3500kg, asphalt tailings slag 5700kg

[0051] Put the above raw materials into the high-speed mixer and add 510kg of water while stirring. After stirring evenly, send them to the digestion bin for digestion for 2-3 hours, and then put them into the high-speed mixer in the order of entering the bin for secondary stirring and add water to make the mixed materials It becomes a billet with a water content of 8-10%, and the billet is sent to the HF1280 automatic hydraulic brick press to be pressed into a 240×115×53mm brick, and then removed from the brick press by the MD76 automatic stacker according to the regulations. code on the autoclave trolley. The autoclaved trolleys that have been stacked with bricks are formed into a row, pulled into the autoclave by the tractor, the lid of the autoclave is closed, the air in the autoclave is exhausted (30 minutes), and the autoclave maintenance system is set (heating for 1.5 hours, K...

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Abstract

The present invention relates to an autoclaved asphalt tailing slag brick and a preparation method thereof, and belongs to the field of new building materials. The invention solves the technical problem by providing the autoclaved asphalt tailing slag brick prepared from asphalt tailing slag. The autoclaved asphalt tailing slag brick comprises at least one of quick lime and cement, and asphalt tailing slag and silicon-containing aggregate. The autoclaved asphalt tailing slag brick comprises by weight, 0-12% of the quick lime, 0-20% of the cement, 30-40% of the silicon-containing aggregate, and balance of the asphalt tailing slag. The autoclaved asphalt tailing slag brick has good building performance, the production process only comprises autoclave curing without sintering, saves energy, and reduces the production cost, by use of the asphalt tailing slag as a main raw material, a new way for recycle of the asphalt tailing slag is provided, the autoclaved asphalt tailing slag brick can replace a sintering clay brick to be used for buildings, reduces the pollution of the asphalt tailing slag to the environment, is conducive to the comprehensive utilization of resources, and land, energy and soil-saving, and can protect ecological environment.

Description

technical field [0001] The invention relates to an autoclaved asphalt tailings slag brick and a preparation method thereof, belonging to the field of new building materials. Background technique [0002] Bituminous ore is a non-metallic mineral, which is a rock including naturally produced solid and semi-solid bitumen, soft bitumen, stone bitumen, carbonaceous bitumen, carbon bitumen, high nitrogen bitumen and asphaltene. At present, the main source of industrial bitumen in my country is extracted from bitumen ore by solvent extraction. After extracting asphalt from asphalt ore, it is inevitable to produce a large amount of fine powdery solid particle residue, that is, asphalt tailings. At present, most of the asphalt tailings are discarded or landfilled as waste residues. However, with the rapid development of my country's industry, the discharge of asphalt tailings is increasing day by day, which has brought severe challenges to my country's environmental protection and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B18/12C04B14/06C04B22/06
CPCY02W30/91
Inventor 黄华大方炎章
Owner SICHUAN FANGDA NEW BUILDING MATERIAL DEV CO LTD
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