Red mud permeable brick and preparation method thereof

A permeable brick and red mud technology, applied in the field of building materials, can solve the problems of low utilization rate of red mud, high economic cost, complex process, etc., and achieve the effect of saving sintering process, saving high energy consumption and good application prospects

Inactive Publication Date: 2012-02-01
北京翰高兄弟科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Red mud can produce unburned bricks and sintered bricks. At present, the amount of red mud mixed in unburned bricks is generally below 40%. The utilization rate of red mud is low, and the process is complicated and the economic cost is high, so it is difficult to realize industrialization.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The raw material ratio of this example is:

[0015] Red mud: 80 parts

[0016] Cement: 20 parts

[0017] Lithium carbonate: 0.010 parts

[0018] Sulfuric acid: 0.013 parts

[0019] Lime: 0.010 parts

[0020] Water: 15 parts

[0021] The preparation process is:

[0022] Stir the sintered red mud (calculate the weight after deducting the water when batching), cement, lithium carbonate, and lime in the mixer for 10 minutes, add diluted dilute sulfuric acid and stir, and transport it to the brick making machine after stirring evenly, and then in the molding equipment Press and shape with a pressure of 20Mpa, and then spread the material twice, and finally maintain for 14 days to form a formed red mud permeable brick.

Embodiment 2

[0024] The raw material ratio of this example is:

[0025] Red mud: 70 parts

[0026] Cement: 30 parts

[0027] Lithium carbonate: 0.015 parts

[0028] Rubber powder: 0.045 parts

[0029] Ammonia: 0.015 parts

[0030] Water: 20 parts

[0031] The preparation process is:

[0032] Stir the sintered red mud, cement, lithium carbonate, and rubber powder in a mixer for 10 minutes, add diluted ammonia water and stir, stir evenly and transport to the brick making machine, vibrate and press to form, secondary cloth, and finally curing to form Formed red mud permeable bricks.

Embodiment 3

[0034] The raw material ratio of this example is:

[0035] Red mud: 90 parts

[0036] Cement: 5 parts

[0037] Grit: 10 parts

[0038] Lithium carbonate: 0.005 parts

[0039] Sulfuric acid: 0.007 parts

[0040] Rubber powder: 0.015 parts

[0041] Lime: 0.005 parts

[0042] Water: 18 parts

[0043] The preparation process is:

[0044] Stir the sintered red mud, cement, coarse sand, lithium carbonate, rubber powder, and lime in a mixer for 10 minutes, add a certain amount of dilute sulfuric acid and stir, stir evenly and transport it to the brick making machine, vibrate, and then put it on the molding equipment It is pressed and formed with a pressure of 20Mpa, and the material is distributed twice, and finally cured for 14 days to form a formed red mud permeable brick.

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PUM

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Abstract

The invention discloses a red mud permeable brick and a preparation method thereof, and belongs to the technical field of building materials and construction. The red mud permeable brick comprises the following raw materials in percentage by weight: 50 to 90 weight percent of red mud, 3 to 20 weight percent of cement, 0 to 20 weight percent of sand, 0.03 to 0.16 weight percent of admixture, and 5 to 40 weight percent of water. The preparation method comprises the following steps of: fully mixing a certain amount of cement, admixture and the like and the red mud, molding the mixture by compacting, pressing or compacting and pressing, and obtaining a red mud permeable brick pavement material product by drying. Compared with the conventional red mud sintered brick, the red mud permeable brick has the advantages of high utilization rate of the red mud, simplicity in production process and low cost; and the invention has significance for improving the comprehensive utilization of the red mud and reducing environmental pollution of red mud discharge.

Description

technical field [0001] The invention relates to resource utilization of industrial waste residues, belongs to the field of building materials, and mainly refers to a red mud permeable brick and a preparation method thereof. Background technique [0002] In order to implement the State Council's "Nonferrous Metals Industry Adjustment and Revitalization Plan", improve the comprehensive utilization rate and comprehensive utilization technology level of red mud, reduce the impact of red mud stockpiling on the environment and safety, and promote the comprehensive utilization of red mud, industry and informatization The Ministry of Science and Technology jointly issued the "Guidelines for the Comprehensive Utilization of Red Mud" on November 26, 2010, which has important guiding significance for comprehensively promoting the comprehensive utilization of red mud in my country. [0003] The comprehensive utilization of red mud is a permanent solution to environmental pollution and sa...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/14
CPCY02W30/91
Inventor 吴飞徐春利刘明磊房墉房振
Owner 北京翰高兄弟科技发展有限公司
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