Ceramsite water permeable brick and preparation method thereof

A technology of permeable brick and ceramsite, which is applied to ceramic products, other household appliances, household appliances, etc., can solve the problems of sintering for 2-2.6 hours, waste of energy during firing time, poor expansion effect of ceramsite, etc., and can reduce the temperature. , sufficient content, cost-saving effect

Active Publication Date: 2014-02-05
RENCHSAND ECO ENVIRONMENT PROTECTION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent 201110314495.1 uses industrial sand dust as raw material to add appropriate amount of coal powder, fly ash or coal gangue powder, preheats, sinters at 1220°C-1350°C for 2-2.6 hours, cools and sieves to obtain industrial sand dust ceramsite , to achieve the purpose of recycling waste and environmental protection. However, the preparation of ceramsite by this method requires sintering for 2-2.6 hours. If the sintering time is too long, energy will be wasted, and the production efficiency will be low. higher
Usually higher than 850kg / m 3 , the generalizability is not strong

Method used

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  • Ceramsite water permeable brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Preparation of ceramsite from silica sand dust

[0044] Material preparation: weight ratio: silica sand dust 90%

[0045]Clay: 5%

[0046] Coal powder: 5%

[0047] preparation:

[0048] The mixed material is granulated into balls; dried at 110°C; pre-fired at 400°C for 20 minutes; roasted at 1150°C for 20 minutes; cooled and sieved to obtain the finished ceramsite.

[0049] The ceramsite prepared in this embodiment has an average particle diameter of 5mm and a bulk density of 780kg / m 3 , Cylinder compressive strength 6.0Mpa.

[0050] (2) Manufacturing of ceramsite permeable bricks

[0051] Material preparation: 100 parts of ceramsite, 10 parts of silica sand, 30 parts of cement, coagulant sodium chloride and water reducer ammonium lignosulfonate are 2.5% of ceramsite respectively;

[0052] Preparation: mix ceramsite, cement, coagulant, water reducing agent; lay a layer of silica sand fabric 1 / 4 of the depth of the material mold box in the brick-making mold box...

Embodiment 2

[0055] (1) Preparation of ceramsite from silica sand dust

[0056] Material preparation: weight ratio: silica sand dust 90%

[0057] Clay: 5%

[0058] Sawdust: 5%

[0059] Preparation: granulate the mixed material into balls; dry at 110°C; pre-fire at 400°C for 20 minutes; roast at 1150°C for 20 minutes; cool and sieve to obtain the finished ceramsite.

[0060] The ceramsite prepared in this embodiment has an average particle diameter of 5mm and a bulk density of 500kg / m 3 , Cylinder compressive strength 4.8Mpa

[0061] (2) Manufacturing of ceramsite permeable bricks

[0062] Prepare materials: 100 parts of ceramsite, 10 parts of silica sand, 30 parts of cement, coagulant sodium nitrite and water reducer sodium gluconate are respectively 2% and 4% of ceramsite;

[0063] Preparation: mix ceramsite, silica sand, cement, coagulant, and water reducing agent; lay a layer of silica sand fabric with a depth of 1 / 5 of the mold box in the brick-making mold box, and press the mixed...

Embodiment 3

[0066] (1) Preparation of ceramsite from silica sand dust

[0067] Material preparation: weight ratio: silica sand dust 80%

[0068]

[0069] Preparation: The mixed material is granulated into balls, dried at 110°C, pre-fired at 400°C for 20 minutes, fired at 1150°C for 20 minutes, cooled and sieved to obtain the finished ceramsite.

[0070] The ceramsite prepared in this example has an average particle diameter of 5mm and a bulk density of 380kg / m 3 , Cylinder compressive strength 3.2Mpa.

[0071] (2) Manufacturing of ceramsite permeable bricks

[0072] Preparation materials: 100 parts of ceramsite, 15 parts of silica sand, 30 parts of cement, coagulant sodium carbonate and amino ultra-speed high-performance water reducer are 2.5% of ceramsite respectively;

[0073] Preparation: mix ceramsite, silica sand, cement, coagulant, water reducer, lay a layer of 1 / 5 silica sand fabric in the brick mold box, press the mixed material into the mold box, and cure for 1-2 One day, ...

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Abstract

The invention provides a ceramsite water permeable brick, which comprises the following components by weight: 80-100 parts of ceramsite, 10-15 parts of silicon sand, 20-40 parts of cement, a setting accelerator accounting for 2-4% of the weight of the ceramsite, and a water reducing agent accounting for 2-4% of the weight of the ceramsite. According to the invention, silicon sand dust made ceramsite is combined with a small quantity of cement, the setting accelerator, the water reducing agent and a silicon sand fabric to manufacture the ceramsite water permeable brick. One the one hand, the water permeable brick has a beautiful appearance, and on the other hand it combines the lightweight and high strength characteristics of ceramsite. At the same time, ceramsite is round stone rather than polygonal, and usually the gap between round objects is larger than that between polygonal objects, so that the prepared water permeable brick has good permeability effect. The water permeable brick prepared by the method has compressive strength of greater than or equal to 30Mpa and a permeability coefficient of greater than or equal to 0.05cm/s, and the other properties of the brick meet the JCT945-2005 industrial standard.

Description

technical field [0001] The invention relates to a recycling technology of silica sand dust, in particular to a technical proposal for manufacturing ceramsite permeable bricks by using silica sand dust. Background technique [0002] Foundry waste sand will produce a part of dust during the regeneration process. According to statistics, every ton of waste sand will produce 0.3 tons of dust. The long-term accumulation of these dust not only occupies land resources but also causes serious environmental pollution. Therefore, the reuse of dust can not only reduce environmental pollution but also improve the utilization rate of reclaimed sand, further improving the economic benefits. Patent 201110314495.1 uses industrial sand dust as raw material to add appropriate amount of coal powder, fly ash or coal gangue powder, preheats, sinters at 1220°C-1350°C for 2-2.6 hours, cools and sieves to obtain industrial sand dust ceramsite , to achieve the purpose of recycling waste and environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/02
Inventor 秦升益贾屹海王宏斌刘志
Owner RENCHSAND ECO ENVIRONMENT PROTECTION SCI & TECH CO LTD
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