High-temperature silt stabilizing agent and preparation method thereof

A high-performance, stabilizer technology, applied in the direction of dehydration/drying/thickened sludge treatment, etc., can solve the problems of limited industrial waste consumption, environmental pollution hazards, land occupation, etc., and achieve faster curing speed, shorter curing time, and lower project cost low effect

Inactive Publication Date: 2017-12-08
GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, silt is usually piled up as waste in farmland, ponds and other places. If it is not handled properly, it will occupy a large amount of land for a long time, causing a series of social problems, and there are environmental pollution hazards. How to deal with dredged silt is a an issue worthy of attention
[0003] At present, most of the research is still focused on using industrial waste as an auxiliary curing agent to assist cement and quicklime to solidify dredged sludge. Usually, the effect of these composite curing agents is better than that of single-mixed cement or quicklime, but this method consumes more industrial waste. is extremely limited, and only a small improvement in curing cost

Method used

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  • High-temperature silt stabilizing agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The high-performance sludge stabilizer provided by this embodiment is composed of the following components in mass percentage:

[0063] Blast furnace slag powder 44%

[0064] Fly Ash 26%

[0065] Quicklime 11%

[0066] Gelling agent 6%

[0067] Phosphogypsum 5%

[0068] Flocculant 3%

[0069] Stimulant 3%

[0070] Enhancer 2%.

[0071]Among the components of high-performance sludge stabilizer:

[0072] Blast furnace slag powder should meet the technical requirements of the standard "Granulated Blast Furnace Slag Powder Used in Cement and Concrete" GB / T8046, and the specific surface area of ​​blast furnace slag powder should not be less than 500m 2 / kg, density not less than 2.8g / cm 3 , 7d activity index is not less than 95%, chloride ion content is not more than 0.06%, loss on ignition is not more than 3%.

[0073] Fly ash should meet the technical requirements of the standard "Fly Ash Used in Cement and Concrete" GB / T1596. The fineness of fly ash should not ex...

Embodiment 2

[0086] The high-performance sludge stabilizer provided by this embodiment is composed of the following components in mass percentage:

[0087] Blast furnace slag powder 48%

[0088] Fly Ash 18%

[0089] Quicklime 13%

[0090] Gelling agent 8%

[0091] Phosphogypsum 6%

[0092] Flocculant 2%

[0093] Stimulant 3%

[0094] Enhancer 2%.

[0095] Among the components of high-performance sludge stabilizer:

[0096] Blast furnace slag powder should meet the technical requirements of the standard "Granulated Blast Furnace Slag Powder Used in Cement and Concrete" GB / T8046, and the specific surface area of ​​blast furnace slag powder should not be less than 500m 2 / kg, density not less than 2.8g / cm 3 , 7d activity index is not less than 95%, chloride ion content is not more than 0.06%, loss on ignition is not more than 3%.

[0097] Fly ash should meet the technical requirements of the standard "Fly Ash Used in Cement and Concrete" GB / T1596. The fineness of fly ash should not e...

Embodiment 3

[0106] The high-performance sludge stabilizer provided by this embodiment is composed of the following components in mass percentage:

[0107] Blast furnace slag powder 42%

[0108] Fly Ash 24%

[0109] Quicklime 12%

[0110] Gelling agent 7%

[0111] Phosphogypsum 8%

[0112] Flocculant 3%

[0113] Stimulator 2%

[0114] Enhancer 2%.

[0115] Among the components of high-performance sludge stabilizer:

[0116] Blast furnace slag powder should meet the technical requirements of the standard "Granulated Blast Furnace Slag Powder Used in Cement and Concrete" GB / T8046, and the specific surface area of ​​blast furnace slag powder should not be less than 500m 2 / kg, density not less than 2.8g / cm 3 , 7d activity index is not less than 95%, chloride ion content is not more than 0.06%, loss on ignition is not more than 3%.

[0117] Fly ash should meet the technical requirements of the standard "Fly Ash Used in Cement and Concrete" GB / T1596. The fineness of fly ash should not ...

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Abstract

The invention discloses a high-temperature silt stabilizing agent which comprises the following components in percentage by mass: 30-60% of blast-furnace slag powder, 15-35% of fly ash, 10-20% of quick lime, 6-10% of a gelatinizing agent, 5-10% of phosphorus gypsum, 1-8% of a flocculating agent, 1-8% of an excitant and 1-5% of an enhancer. The high-temperature silt stabilizing agent is capable of effectively reducing the moisture content of silt, high in stability and short in curing time. The invention further discloses a preparation method of the high-temperature silt stabilizing agent.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a high-performance sludge stabilizer and a preparation method thereof. Background technique [0002] River dredging, lake dredging, and port channel construction inevitably produce a large amount of dredged silt. How to efficiently dispose of the increasing amount of dredged silt is a problem of global concern. In our country, silt is usually piled up in farmland, ponds and other places as waste. If it is not handled properly, it will occupy a large amount of land for a long time, causing a series of social problems and environmental pollution hazards. How to deal with dredged silt is a A question worthy of attention. [0003] At present, most of the research is still focused on using industrial waste as an auxiliary curing agent to assist cement and quicklime to solidify dredged sludge. Usually, the effect of these composite curing agents is better than that of sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C02F11/14
Inventor 李建新李晓琛费飞龙陈培鑫陈耿
Owner GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD
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