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Curing agent and preparation method thereof

A curing agent and coagulant technology, which is applied in the field of curing agent and its preparation, can solve the problems of garbage fly ash reprocessing difficulties, ineffective utilization, and heavy metal leakage, so as to improve the coagulation effect, prevent heavy metal leakage, stress-relieving effect

Active Publication Date: 2016-06-08
堡森(上海)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the prior art that the reprocessing of garbage fly ash is difficult, heavy metal leakage is prone to occur, causing secondary pollution, and cannot be effectively used, the present invention provides a curing agent and a preparation method thereof, which can be used for waste incineration fly ash The reprocessing can effectively prevent the leakage of heavy metals, and the treated waste incineration fly ash can be reused. Because of its good water permeability, it is an excellent material for repairing dams and crosswalks, etc., and it has truly turned waste into treasure. The purpose of energy saving and environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The steps for treating the incineration fly ash of a certain unit are:

[0041] A takes calcium sulfate, sodium sulfate, calcium lignosulfonate and clay in a mass ratio of 3:2.5:1:13, and mixes them to obtain a coagulant; the stirring time is 5-10min;

[0042] B selects 40 parts by mass of water and places it in the reaction vessel, and then sequentially adds 17 parts by mass of sodium silicate, 15 parts by mass of diatomaceous earth, 5 parts by mass of pyrrole and 5 parts by mass of EDTA into the water Disodium is added while stirring to obtain the first mixed solution; the stirring time in step B is 8-20min;

[0043] C Select 10 parts by mass of the coagulant obtained in step A and add it to the first mixed solution, and then add 5-15 parts by mass of activated carbon (the activated carbon is the activated carbon described in Example 1 of the application text of the patent number 201310221064X) , 18 parts of disodium methylene dinaphthalene sulfonate, 1 part of borax...

Embodiment 2

[0049] To process the incineration fly ash of a certain unit, the steps are as follows:

[0050] A Take calcium sulfate, sodium sulfate, calcium lignosulfonate and clay according to the mass ratio of 2:3:1:10, mix and stir them to obtain coagulant; the stirring time is 5-10min;

[0051] B selects 53 parts by mass of water to be placed in the reaction vessel, then sequentially add 10 parts by mass of sodium silicate, 20 parts by mass of diatomaceous earth, 2 parts by mass of pyrrole and 15 parts by mass of ethylenediaminetetraacetic acid Disodium is stirred while adding to obtain the first mixed solution; the stirring time in step B is 8-20min;

[0052] C selects 8 parts by mass of the coagulant obtained in step A to add to the first mixed solution, and then sequentially adds 15 parts by mass of activated carbon (activated carbon is the activated carbon described in Example 2 of the application text of Patent No. 201310221064X), 13 One part of disodium methylene dinaphthalene ...

Embodiment 3

[0059] To process the incineration fly ash of a certain unit, the steps are as follows:

[0060] A Take calcium sulfate, sodium sulfate, calcium lignosulfonate and clay according to the mass ratio of 4:2:1:15, mix and stir them, and the stirring time is 5-10min; obtain coagulant;

[0061] B selects 48 mass parts of water to be placed in the reaction vessel, and then sequentially add 15 mass parts of sodium silicate, 18 mass parts of diatomaceous earth, 3 mass parts of pyrrole and 10 mass parts of ethylenediaminetetraacetic acid to the water Disodium, stirring while adding, the stirring time is 8-20min; obtain the first mixed solution;

[0062] C selects 9 parts by mass of the coagulant obtained in step A and adds it to the first mixed solution, then successively adds 11 parts by mass of activated carbon, 15 parts of disodium methylene dinaphthalene sulfonate, 3 parts of borax and 2 parts of gelatin , stirring to obtain the second mixed solution, the stirring time is 10-25min;...

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PUM

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Abstract

The invention discloses a curing agent and a preparation method thereof, and belongs to the field of a chemical curing agent. The preparation method comprises the following steps: A. calcium sulfate, sodium sulfate, calcium lignosulfonate and clay are mixed with stirring, and a coagulant is obtained; B. sodium silicate, diatomite, pyrrole and Ethylene diamine tetraacetic acid disodium salt are added into water with stirring, and a first mixed solution is obtained; C. the coagulant is added into the first mixed solution, active carbon, disodium methylene dinaphthalenesulfonate, borax and gelatin are added into the first mixed solution in order with stirring, and a second mixed solution is obtained; D. the second mixed solution is heated to 50-70 DEG C and cooled to normal temperature, and the curing agent is obtained. The curing agent is used for treating fly ash from municipal solid waste incineration, the obtained fly ash concrete has the advantages of good water permeability, energy saving and environmental protection, and low cost, the obtained fly ash concrete can be used for repairing dams and paving cross walk, and the like, so that utilization of waste materials is effectively realized, and the problem for treating the fly ash from municipal solid waste incineration is solved.

Description

technical field [0001] The invention belongs to chemical curing agents, in particular to a curing agent and a preparation method thereof. Background technique [0002] The curing agent is generally used for curing soil, paint, resin, etc. For example, the patent application number 201410102847.0 is a soil curing agent with remarkable effect; the patent application number 201180012254.X is a resin curing agent; the patent application number 201310691726. X's patent is a kind of asphalt regeneration and curing agent. At this stage, more and more methods of urban waste treatment are incinerated. The advantage of incineration is that it greatly reduces the volume of garbage and reduces the pollution of garbage to the environment. The biggest problem is how to deal with the fly ash after incineration. The existing way of treating by cement solidification often leads to the need for a large amount of land for the solidified cement. [0003] In my country, incineration ash is divi...

Claims

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Application Information

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IPC IPC(8): C04B24/20C04B28/04C04B38/00C04B18/10
CPCC04B28/04C04B40/0039C04B2111/00284C04B2111/0075C04B22/08C04B14/10C04B22/143C04B22/147C04B24/18C04B24/123C04B24/128C04B22/0013C04B24/20C04B14/08C04B24/14C04B14/022C04B18/105C04B14/02C04B14/06C04B38/00Y02W30/91
Inventor 王明明其他发明人请求不公开姓名
Owner 堡森(上海)新材料科技有限公司