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Sludge and sand curing agent

A kind of sandy soil and curing agent technology, applied in other chemical processes, soil conditioning materials, chemical instruments and methods, etc., can solve problems such as loss of use value, secondary pollution, impact on the environment, etc., to reduce curing costs, improve the environment, The effect of convenient and quick construction

Active Publication Date: 2007-09-05
DAQING OILFIELD CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the sludge has not been purified and detoxified, the sludge is transported outside, which not only affects the environment and causes secondary pollution, but also wastes resources and loses its use value.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1. The water content of the silt is measured to be 20%, and the weight ratio is silt: aeolian sandy soil=40:60. Spread silt and wind-blown sandy soil on the base layer in proportion, mix with road mixer, use 0.1 parts of polyiron, 50 parts of fly ash, 5 parts of calcium carbonate, and 35 parts of aluminum silicate after initial stabilization, shaping and rolling , 9.8 parts of phosphogypsum and 0.1 part of Yuanming powder are used to pile up the curing agent on the road shoulder according to the ratio of curing agent: (silt+wind-sand soil)=12:100, spread the curing agent on the initially stable roadbed, and level it 1. Pave curing agent, mix twice with road mixer, according to CJJ / T80-98 5.1.3 5.1.3 5.1.4 Roll forming and curing for 7 days in accordance with CJJ / T80 -98 standard measured compressive strength is 5.6Mpa.

Embodiment 2

[0010] Embodiment 2, the moisture content of the recorded silt is 30%, and the weight ratio is silt: aeolian sandy soil=40:60. Spread silt and wind-blown sand on the base layer in proportion, and mix with road mixer. After initial stabilization, shaping and rolling, use 15 parts of polyiron, 25 parts of fly ash, 25 parts of calcium carbonate, and 15 parts of aluminum silicate. The curing agent prepared with 20 parts of phosphogypsum is stacked on the road shoulder according to the ratio of curing agent: (silt + wind-blown sand) = 10: 100, and 20 parts of sodium sulfate are added to spread the curing agent and sodium sulfate. On the initially stable roadbed, level and spread the curing agent, mix twice with the road mixer, roll and form according to 5.1.3 and 5.1.4 of "CJJ / T80-98", and maintain for 7 days, according to CJJ / T80- 98 standard measured compressive strength is 5.1Mpa.

Embodiment 3

[0011] Embodiment 3, the water content of the recorded silt is 35%, and the weight ratio is silt: aeolian sandy soil=40:60. Spread silt and wind-blown sandy soil on the base layer in proportion, and mix them with a rotary tiller. After initial stabilization, shaping, and rolling, use 10 parts of polyiron, 20 parts of fly ash, 60 parts of calcium carbonate, and 8.4 parts of aluminum silicate. , 0.1 part of phosphogypsum and 1.5 parts of Yuanming powder are used to pile up the curing agent on the road shoulder according to the ratio of curing agent: (silt+wind-sand soil) = 12:100, spread the curing agent on the initially stable roadbed, and level it 1. Spread the curing agent, mix twice with a road mixer, roll into shape according to 5.1.35.1.4 of "CJJ / T80-98", and cure for 7 days. The compressive strength is 5.0Mpa according to the standard of CJJ / T80-98.

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Abstract

A curing agent for sludge and sand consists of fly-ash 1-50 proportion, aluminum silicate 5-70 proportion, polymerized ferric sulfate 0.1-15 proportion, phosphogypsum 0.1-60 proportion, glauber salt 0.1-20 proportion and calcium carbonate 5-60 proportion. It can be added into various sludge, mud and sands, which makes sludge, mud and sands coagulation and curing rapidly. It can have better early-stage strength and more heat and accelerate chemical reaction between curing material and mud.

Description

Technical field: [0001] The invention relates to a curing agent, in particular to a curing agent for silt and aeolian soil. Background technique: [0002] Windy sandy soil is the culprit of sandstorms, and silt mostly affects the living environment of human beings. my country has a vast territory and is a country with a large amount of silt resources in the world. There is great potential for the development of silt recycling and comprehensive utilization. According to the survey and statistics of relevant departments, the annual collection of silt from domestic lakes and rivers can reach at least 70 million tons, and the total annual collection of silt from urban sewers can exceed 100 million tons. Collecting silt is beneficial to dredging rivers, preventing water eutrophication and purifying the urban environment, and the comprehensive utilization of silt can turn harm into profit. A large amount of silt is also produced in the water treatment of Daqing Oilfield, forming ...

Claims

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Application Information

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IPC IPC(8): C09K17/12C09K105/00
Inventor 王寿光乔丽艳王冕宋丽娟林森李金成王钦福贾庆
Owner DAQING OILFIELD CO LTD
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