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Thermodynamic calculation method of circulating fluidized bed ash composite grouting material

A circulating fluidized bed and composite grouting technology, which is applied in chemical process analysis/design, computational theoretical chemistry, informatics, etc., can solve the problem of utilization degree and utilization efficiency less than 40%, irregular particle shape, loose structure, etc. problems, to achieve the effect of accelerating the rate of hydration reaction, high utilization rate of solid waste, and promoting solidification

Pending Publication Date: 2022-02-01
山西省交通科技研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a special kind of fly ash, circulating fluidized bed ash is often less than 40% of its utilization degree and utilization efficiency due to its irregular particle shape and loose structure.
The solid waste produced in the production process of PVC board - hydropower slag is particularly difficult to deal with due to its high water content and strong alkalinity

Method used

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  • Thermodynamic calculation method of circulating fluidized bed ash composite grouting material
  • Thermodynamic calculation method of circulating fluidized bed ash composite grouting material
  • Thermodynamic calculation method of circulating fluidized bed ash composite grouting material

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The circulating fluidized bed ash-slag composite grouting material of the present embodiment is 10% bottom slag, 20% fly ash, 10% rich hydropower stone slag, 30% NaOH and Na 2 SO 4 Composite solution (concentration 2mol / L, NaOH and Na 2 SO 4 The solution mass ratio is 1:1), 20% metakaolin, and 10% P.O.42.5 ordinary Portland cement.

[0028] The preparation process of the circulating fluidized bed ash-slag composite grouting material as above is as follows:

[0029] Stir the fly ash, bottom slag, metakaolin, and cement for 30 minutes at a speed of 100 r / min to make them fully mixed; then mix the prepared NaOH and NaOH 2 SO 4 The composite solution and hydroelectric rock slag were stirred at a speed of 300 rpm for 15 minutes, and then poured into the fly ash, bottom slag, metakaolin, and cement compound in proportion to prepare the circulating fluidized bed ash-slag composite injection. Slurry material, and finally pour the composite grouting material into a 40*40*10...

Embodiment 2

[0042]The circulating fluidized bed ash-slag composite grouting material of the present embodiment is 15% bottom slag, 15% fly ash, 10% rich hydropower stone slag, 30% NaOH and Na 2 SO 4 Composite solution (concentration 2mol / L, NaOH and Na 2 SO 4 The solution mass ratio is 1:1), 20% metakaolin, and 10% P.O.42.5 ordinary Portland cement.

[0043] The preparation process of the circulating fluidized bed ash-slag composite grouting material as above is as follows:

[0044] Stir the fly ash, bottom slag, metakaolin, and cement for 30 minutes at a speed of 100 rpm to make them fully mixed, and then mix the prepared NaOH and NaOH 2 SO 4 The composite solution and hydroelectric rock slag were stirred at a speed of 300 rpm for 15 minutes, and then poured into the fly ash, bottom slag, metakaolin, and cement compound in proportion to prepare the circulating fluidized bed ash-slag composite injection. Slurry material, and finally pour the composite grouting material into a 40*40*1...

Embodiment 3

[0057] The circulating fluidized bed ash-slag composite grouting material of the present embodiment is 20% bottom slag, 10% fly ash, 10% rich hydropower stone slag, 30% NaOH and Na 2 SO 4 Composite solution (concentration 2mol / L, NaOH and Na 2 SO 4 The solution mass ratio is 1:1), 20% metakaolin, and 10% P.O.42.5 ordinary Portland cement.

[0058] The preparation process of the circulating fluidized bed ash-slag composite grouting material as above is as follows:

[0059] Stir the fly ash, bottom slag, metakaolin, and cement for 30 minutes at a speed of 100 rpm to make them fully mixed, and then mix the prepared NaOH and NaOH with a specified concentration 2 SO 4 The composite solution and hydroelectric rock slag were stirred at a speed of 300 rpm for 15 minutes, and then poured into the fly ash, bottom slag, metakaolin, and cement compound in proportion to prepare the circulating fluidized bed ash-slag composite injection. Slurry material, and finally pour the composite ...

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Abstract

The invention discloses a thermodynamic calculation method of a circulating fluidized bed ash composite grouting material. The method comprises three main steps of preparation of the circulating fluidized bed ash composite grouting material, synchronous thermal analysis (thermogravimetry-differential scanning calorimetry) of the grouting material, and thermodynamic parameter calculation of the grouting material. The thermodynamic calculation method is high in theoretical degree, high in applicability, environmentally friendly and low in cost, the problem of calculation of the thermodynamic parameters of the circulating fluidized bed ash composite grouting material can be rapidly solved, and understanding of the consolidation mechanism of the grouting material is facilitated.

Description

technical field [0001] The invention belongs to the technical field of thermal dynamic calculation of building materials, in particular to a thermal dynamic calculation method of a circulating fluidized bed ash-slag composite grouting material. Background technique [0002] Circulating fluidized bed ash refers to the fly ash and bottom slag produced by the combustion of circulating fluidized bed boilers. As a special kind of fly ash, circulating fluidized bed ash is often less than 40% of its utilization degree and utilization efficiency due to its irregular particle shape and loose structure. The solid waste generated in the production process of PVC boards - hydropower slag is particularly difficult to deal with due to its high water content and strong alkalinity. [0003] The thermodynamics of composite grouting materials refers to the thermodynamic process that considers the change of material flow, including the test and calculation of thermodynamic parameters such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04G16C10/00G16C20/10
CPCC04B28/04G16C10/00G16C20/10C04B2111/0075C04B2111/00724C04B12/04C04B14/106C04B18/08C04B18/10C04B22/062C04B22/064
Inventor 周新星孔繁盛张艳聪李丹梅刘澔边伟袁正兵荣亚鹏吕子龙董党锋
Owner 山西省交通科技研发有限公司
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