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CN114315292B - Solidification treatment process for industrial solid waste smelting waste residue - Google Patents

Solidification treatment process for industrial solid waste smelting waste residue Download PDF

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CN114315292B
CN114315292B CN202111607481.9A CN202111607481A CN114315292B CN 114315292 B CN114315292 B CN 114315292B CN 202111607481 A CN202111607481 A CN 202111607481A CN 114315292 B CN114315292 B CN 114315292B
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slurry
stirrer
treatment process
solidification treatment
industrial solid
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CN114315292A (en
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李智
周彪
许林峰
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Hunan Jinye Environmental Protection Technology Co ltd
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Hunan Jinye Environmental Protection Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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Abstract

The invention discloses a solidification treatment process of industrial solid waste smelting waste residue, which relates to the technical field of industrial solid waste, and adopts the technical scheme that: the method comprises the following specific steps: s1, putting water and a surfactant into a stirrer for stirring to obtain a mixture A; s2, placing the mixture A and the heavy metal waste residues into a stirrer to be stirred, so as to obtain slurry A; s3, placing the slurry A and the stabilizer into a stirrer to be stirred, so as to obtain slurry B; s4, putting the cementing material and the water reducing agent into a stirrer for stirring to obtain a mixture B; s5, conveying the mixture B to a stirrer through a conveyor, wherein the solidification treatment process of the industrial solid waste smelting waste residue has the beneficial effects that: water in the slurry is quickly absorbed through the water reducing agent, the thickening agent and the cementing material, so that the solidification efficiency of smelting waste residues is improved, and the working efficiency is improved.

Description

Solidification treatment process for smelting waste residues of industrial solid wastes
Technical Field
The invention relates to the technical field of industrial solid wastes, in particular to a solidification treatment process of smelting waste residues of industrial solid wastes.
Background
The solid waste refers to solid and semi-solid waste materials generated in production, consumption, life and other activities of human beings, and is generally called garbage. The waste mainly comprises solid particles, garbage, slag, sludge, waste products, damaged vessels, defective products, animal bodies, deteriorated food, human and animal excreta and the like, the waste mostly refers to solid waste or waste containing a large amount of solids, and the discarded waste can become raw materials, fuels or consumer goods for production, which is the basis of the resource treatment of the solid waste. The smelting waste slag refers to various solid wastes generated in the production process of the smelting industry, and the smelting waste slag needs to be subjected to solidification treatment at present;
the prior art has the following defects: when the existing solidification treatment process is used for solidifying the smelting waste slag, the solidification efficiency is low, so that the working efficiency is reduced.
Therefore, the invention is necessary to develop a solidification treatment process of the industrial solid waste smelting waste.
Disclosure of Invention
The invention is provided in view of the above and/or the problems existing in the existing solidification treatment process of the smelting waste residue of the industrial solid waste.
Therefore, the invention aims to provide a solidification treatment process for smelting waste residues of industrial solid wastes, which can solve the problem that the prior solidification treatment process has low solidification efficiency and reduced working efficiency when the smelting waste residues are solidified by different addition sequences, reaction temperatures and proportion proportions of water, a surfactant, heavy metal waste residues, a stabilizer, a cementing material, a water reducing agent and a thickening agent.
In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:
a solidification treatment process of industrial solid waste smelting waste residue comprises the following specific steps:
s1, putting water and a surfactant into a stirrer for stirring to obtain a mixture A;
s2, putting the mixture A and the heavy metal waste residue into a stirrer for stirring to obtain slurry A; .
S3, placing the slurry A and the stabilizer into a stirrer to be stirred, so as to obtain slurry B;
s4, placing the cementing material and the water reducing agent into a stirrer to be stirred, so as to obtain a mixture B;
s5, conveying the mixture B into a stirrer through a conveyor, conveying the slurry B into the stirrer at the same time, and stirring and mixing the mixture B and the slurry B after the conveying is finished so as to obtain slurry C;
s6, putting the slurry C and the thickening agent into a stirrer through a conveyor for stirring to obtain slurry D;
and S7, placing the slurry D into a mold, cooling and molding, demolding to obtain a solidified body, and placing the solidified body into a curing area.
As a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the solidification treatment process comprises the following steps: the water, the surfactant, the heavy metal waste residue, the stabilizer, the cementing material, the water reducing agent and the thickening agent are respectively as follows by weight: 40g to 50g, 10g to 14g, 40g to 50g, 8g to 12g, 6g to 10g, 12g to 16g and 8g to 12g.
As a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the solidification treatment process comprises the following steps: the surfactant is composed of polyoxyethylene castor oil, fatty alcohol-polyoxyethylene ether and polyoxyethylene sorbitan fatty acid ester, and the proportion is 1:1:2.
as a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the solidification treatment process comprises the following steps: the stabilizer consists of calcium stearate, zinc stearate, nontoxic phosphite ester and hydrotalcite, and the proportion is 1:2:1:0.5.
as a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the solidification treatment process comprises the following steps: the gelled material is composed of polyester fibers, glass fibers, lime, cement and fly ash, and the proportion is 1:1:1:0.5:2.
as a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the solidification treatment process comprises the following steps: the cement consists of portland cement, aluminate cement and sulphoaluminate cement in a ratio of 2:1:1.
as a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the invention comprises the following steps: the water reducing agent is one or more of polycyclic aromatic sulfonate formaldehyde condensate, sulfamate high-efficiency water reducing agent, powder polycarboxylate and melamine water reducing agent.
As a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the solidification treatment process comprises the following steps: the thickening agent consists of fumed silica, sodium bentonite and organic bentonite, and the proportion is as follows: 2:1:1.
as a preferable scheme of the solidification treatment process of the industrial solid waste smelting waste residue, the solidification treatment process comprises the following steps: in the S1, the stirring time is 6min-10min, and the temperature is 30-40 ℃;
in the S2, the stirring time is 20min-40min, and the temperature is 42 ℃ to 48 ℃;
in the S3, the stirring time is 16min-20min, and the temperature is 35-45 ℃;
in the S4, the stirring time is 30-40 min, and the temperature is 40-45 ℃;
in the S5, the stirring time is 20min-30min, and the temperature is 60 ℃ to 65 ℃;
in the S6, the stirring time is 30-50 min, and the temperature is 50-55 ℃.
The beneficial effects of the invention are:
the method comprises the steps of putting water and a surfactant into a stirrer to be stirred to obtain a mixture A, putting the mixture A and heavy metal waste residues into the stirrer to be stirred to obtain slurry A, putting the slurry A and a stabilizer into the stirrer to be stirred to obtain slurry B, putting a cementing material and a water reducing agent into the stirrer to be stirred to obtain a mixture B, conveying the mixture B into the stirrer through a conveyor, conveying the slurry B into the stirrer at the same time, stirring and mixing the mixture B and the slurry B after the conveying is finished to obtain slurry C, putting the slurry C and a thickening agent into the stirrer through the conveyor to be stirred to obtain slurry D, putting the slurry D into a mold to be cooled and formed, demolding to obtain a solidified body after the forming, and putting the solidified body into a curing area.
Detailed Description
The preferred embodiments of the present invention are described below, and it should be understood that the preferred embodiments described herein are only for illustrating and explaining the present invention and are not to be construed as limiting the present invention.
Example 1:
the invention provides a solidification treatment process of industrial solid waste smelting waste residue, which comprises the following specific steps:
s1, putting water and a surfactant into a stirrer to be stirred, so as to obtain a mixture A, wherein the water and the surfactant are respectively as follows by weight: 40g and 10g, wherein the surfactant is composed of polyoxyethylene castor oil, fatty alcohol-polyoxyethylene ether and polyoxyethylene sorbitan fatty acid ester, and the proportion is 1:1:2, stirring for 6min at the temperature of 30 ℃;
s2, placing the mixture A and the heavy metal waste residues into a stirrer to be stirred, and thus obtaining slurry A, wherein the heavy metal waste residues comprise the following components in parts by weight: 40g, stirring for 20min at 42 ℃;
s3, putting the slurry A and a stabilizer into a stirrer to be stirred so as to obtain a slurry B, wherein the stabilizer comprises the following components in parts by weight: 8g, the stabilizer is composed of calcium stearate, zinc stearate, nontoxic phosphite ester and hydrotalcite, and the proportion is 1:2:1:0.5, stirring for 16min at 35 ℃;
s4, placing the cementing material and the water reducing agent into a stirrer to be stirred, and thus obtaining a mixture B, wherein the cementing material and the water reducing agent are respectively as follows by weight: 6g and 12g, wherein the cementing material consists of polyester fiber, glass fiber, lime, cement and fly ash, the cement consists of portland cement, aluminate cement and sulphoaluminate cement, and the proportion is 2:1:1 and the ratio is 1:1:1:0.5:2, the water reducing agent is one or more of polycyclic aromatic sulfonate formaldehyde condensate, sulfamate high-efficiency water reducing agent, powder polycarboxylate and melamine water reducing agent, the stirring time is 30min, and the temperature is 40 ℃;
s5, conveying the mixture B into a stirrer through a conveyor, conveying the slurry B into the stirrer at the same time, and after the conveying is finished, stirring and mixing the mixture B and the slurry B to obtain slurry C, wherein the stirring time is 20min, and the temperature is 60 ℃;
s6, putting the slurry C and the thickening agent into a stirrer through a conveyor for stirring to obtain slurry D, wherein the thickening agent comprises the following components in parts by weight: 8g, wherein the thickening agent consists of fumed silica, sodium bentonite and organic bentonite, and the proportion is as follows: 2:1:1, stirring for 30min at 50 ℃;
s7, placing the slurry D into a mold, cooling and molding, demolding to obtain a solidified body, and placing the solidified body into a curing area.
Example 2:
the invention provides a solidification treatment process of industrial solid waste smelting waste residues, which comprises the following specific steps:
s1, putting water and a surfactant into a stirrer to be stirred, so as to obtain a mixture A, wherein the water and the surfactant are respectively as follows by weight: 45g and 12g, wherein the surfactant is composed of polyoxyethylene castor oil, fatty alcohol-polyoxyethylene ether and polyoxyethylene sorbitan fatty acid ester, and the proportion is 1:0.5:2, stirring for 8min at the temperature of 35 ℃;
s2, placing the mixture A and the heavy metal waste residues into a stirrer to be stirred, and thus obtaining slurry A, wherein the heavy metal waste residues comprise the following components in parts by weight: 45g, stirring for 30min and keeping the temperature at 45 ℃;
s3, putting the slurry A and a stabilizer into a stirrer to be stirred, so as to obtain a slurry B, wherein the stabilizer comprises the following components in parts by weight: 10g, the stabilizer consists of calcium stearate, zinc stearate, nontoxic phosphite ester and hydrotalcite, and the proportion is 1:0.5:1:0.5, stirring for 18min at 40 ℃;
s4, placing the cementing material and the water reducing agent into a stirrer to be stirred, so as to obtain a mixture B, wherein the cementing material and the water reducing agent are respectively as follows by weight: 8g and 14g, wherein the cementing material consists of polyester fiber, glass fiber, lime, cement and fly ash, the cement consists of portland cement, aluminate cement and sulphoaluminate cement, and the proportion is 2:0.5:1, and the ratio is 1:0.5:1:0.5:2, the water reducing agent is one or more of polycyclic aromatic sulfonate formaldehyde condensate, sulfamate high-efficiency water reducing agent, powder polycarboxylate and melamine water reducing agent, the stirring time is 35min, and the temperature is 42.5 ℃;
s5, conveying the mixture B into a stirrer through a conveyor, conveying the slurry B into the stirrer, and after the conveying is finished, stirring and mixing the mixture B and the slurry B to obtain slurry C, wherein the stirring time is 25min, and the temperature is 62.5 ℃;
s6, putting the slurry C and the thickening agent into a stirrer through a conveyor for stirring to obtain slurry D, wherein the thickening agent comprises the following components in parts by weight: 10g, wherein the thickening agent consists of fumed silica, sodium bentonite and organic bentonite, and the proportion is as follows: 2:0.5:1, stirring for 40min at 52.5 ℃;
s7, placing the slurry D into a mold, cooling and molding, demolding to obtain a solidified body, and placing the solidified body into a curing area.
Example 3:
the invention provides a solidification treatment process of industrial solid waste smelting waste residue, which comprises the following specific steps:
s1, putting water and a surfactant into a stirrer to be stirred, so as to obtain a mixture A, wherein the water and the surfactant are respectively as follows by weight: 50g and 14g, wherein the surfactant is composed of polyoxyethylene castor oil, fatty alcohol-polyoxyethylene ether and polyoxyethylene sorbitan fatty acid ester, and the proportion is 0.5:1:2, stirring for 10min at 40 ℃;
s2, placing the mixture A and the heavy metal waste residues into a stirrer to be stirred, and thus obtaining slurry A, wherein the heavy metal waste residues comprise the following components in parts by weight: 50g, stirring for 40min at 48 ℃;
s3, putting the slurry A and a stabilizer into a stirrer to be stirred, so as to obtain a slurry B, wherein the stabilizer comprises the following components in parts by weight: 12g, the stabilizer is composed of calcium stearate, zinc stearate, nontoxic phosphite ester and hydrotalcite, and the proportion is 1.5:2:1:0.5, stirring for 20min at 45 ℃;
s4, placing the cementing material and the water reducing agent into a stirrer to be stirred, so as to obtain a mixture B, wherein the cementing material and the water reducing agent are respectively as follows by weight: 10g and 16g, wherein the cementing material consists of polyester fiber, glass fiber, lime, cement and fly ash, the cement consists of portland cement, aluminate cement and sulphoaluminate cement, and the proportion is 1:0.5:1 and the ratio is 2:1:0.5:0.5:2, the water reducing agent is one or more of polycyclic aromatic sulfonate formaldehyde condensate, sulfamate high-efficiency water reducing agent, powder polycarboxylate and melamine water reducing agent, the stirring time is 40min, and the temperature is 45 ℃;
s5, conveying the mixture B into a stirrer through a conveyor, conveying the slurry B into the stirrer, and after the conveying is finished, stirring and mixing the mixture B and the slurry B to obtain slurry C, wherein the stirring time is 30min, and the temperature is 65 ℃;
s6, putting the slurry C and the thickening agent into a stirrer through a conveyor for stirring to obtain slurry D, wherein the thickening agent comprises the following components in parts by weight: 12g, the thickening agent consists of fumed silica, sodium bentonite and organic bentonite, and the proportion is as follows: 1:1:2, stirring for 50min at the temperature of 55 ℃;
and S7, placing the slurry D into a mold, cooling and molding, demolding to obtain a solidified body, and placing the solidified body into a curing area.
The following data were obtained by comparing the solidified waste residues prepared in examples 1 to 3 above:
example 1 Example 2 Example 3
Solid content 35%-50% 60%-80% 40%-55%
Bleeding rate 3%-4% 4%-5% 2%-4%
Efficiency of curing Saves 15% of time compared with the prior art Saves 25% of time compared with the prior art Compared with the prior art, the method saves 20 percent of time
As can be seen from the above table, the solidified waste residues prepared in examples 1 to 3 have better performance in terms of solid content, bleeding rate and solidification efficiency, but the effects of the solidified waste residues in terms of solid content, bleeding rate and solidification efficiency are different due to different addition sequences, reaction temperatures and proportion ratios of water, surfactant, heavy metal waste residues, stabilizer, cementing material, water reducing agent and thickener.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it to an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims (7)

1. A solidification treatment process of industrial solid waste smelting waste residue is characterized in that: the method comprises the following specific steps:
s1, putting water and a surfactant into a stirrer to be stirred, so as to obtain a mixture A;
s2, placing the mixture A and the heavy metal waste residues into a stirrer to be stirred, so as to obtain slurry A;
s3, placing the slurry A and the stabilizer into a stirrer to be stirred, so as to obtain slurry B;
s4, putting the cementing material and the water reducing agent into a stirrer for stirring to obtain a mixture B;
s5, conveying the mixture B into a stirrer through a conveyor, conveying the slurry B into the stirrer at the same time, and stirring and mixing the mixture B and the slurry B after the conveying is finished so as to obtain slurry C;
s6, putting the slurry C and the thickening agent into a stirrer through a conveyor for stirring to obtain slurry D;
s7, placing the slurry D into a mold, cooling and molding, demolding to obtain a solidified body, and placing the solidified body into a curing area;
the water, the surfactant, the heavy metal waste residue, the stabilizer, the cementing material, the water reducing agent and the thickening agent are respectively as follows by weight: 40g-50g, 10g-14g, 40g-50g, 8g-12g, 6g-10g, 12g-16g and 8g-12g;
in the S1, the stirring time is 6min-10min, and the temperature is 30-40 ℃;
in the S2, the stirring time is 20min-40min, and the temperature is 42 ℃ to 48 ℃;
in the S3, the stirring time is 16min-20min, and the temperature is 35-45 ℃;
in the S4, the stirring time is 30-40 min, and the temperature is 40-45 ℃;
in the S5, the stirring time is 20min-30min, and the temperature is 60-65 ℃;
in the S6, the stirring time is 30-50 min, and the temperature is 50-55 ℃.
2. The solidification treatment process of the industrial solid waste smelting waste residue according to claim 1, characterized in that: the surfactant is composed of polyoxyethylene castor oil, fatty alcohol-polyoxyethylene ether and polyoxyethylene sorbitan fatty acid ester, and the proportion is 1:1:2.
3. the solidification treatment process of the industrial solid waste smelting waste residue according to claim 1, characterized in that: the stabilizer consists of calcium stearate, zinc stearate, nontoxic phosphite ester and hydrotalcite, and the proportion is 1:2:1:0.5.
4. the solidification treatment process of industrial solid waste smelting waste residue according to claim 1, characterized in that: the cementing material is composed of polyester fiber, glass fiber, lime, cement and fly ash, and the proportion is 1:1:1:0.5:2.
5. the solidification treatment process of the industrial solid waste smelting waste residue according to claim 4, characterized in that: the cement consists of portland cement, aluminate cement and sulphoaluminate cement in a ratio of 2:1:1.
6. the solidification treatment process of the industrial solid waste smelting waste residue according to claim 1, characterized in that: the water reducing agent is one or more of polycyclic aromatic sulfonate formaldehyde condensate, sulfamate high-efficiency water reducing agent, powder polycarboxylate and melamine water reducing agent.
7. The solidification treatment process of industrial solid waste smelting waste residue according to claim 1, characterized in that: the thickening agent consists of fumed silica, sodium bentonite and organic bentonite, and the proportion is as follows: 2:1:1.
CN202111607481.9A 2021-12-24 2021-12-24 Solidification treatment process for industrial solid waste smelting waste residue Active CN114315292B (en)

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JP2007000741A (en) * 2005-06-22 2007-01-11 Unitika Ltd Stabilizing agent for harmful substance in ash and stabilizing method
CN101972766A (en) * 2010-08-30 2011-02-16 天津渤海环保工程有限公司 Refuse incineration fly ash solidification/stabilization treatment method
CN105776984B (en) * 2016-02-03 2018-02-16 辽宁绿源再生能源开发有限公司 A kind of recycling processing method of Industrial Solid Waste
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CN110759680B (en) * 2019-11-14 2021-02-23 山东大学 Red mud utilization method based on cooperative treatment of industrial tail gas, sewage treatment and green high-performance civil functional material
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