CN115650622A - Grinding-aid exciting agent for solid waste material and preparation method thereof - Google Patents
Grinding-aid exciting agent for solid waste material and preparation method thereof Download PDFInfo
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- CN115650622A CN115650622A CN202211404538.XA CN202211404538A CN115650622A CN 115650622 A CN115650622 A CN 115650622A CN 202211404538 A CN202211404538 A CN 202211404538A CN 115650622 A CN115650622 A CN 115650622A
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- penetrating fluid
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention discloses a grinding-aid excitant for solid waste materials and a preparation method thereof, and the grinding-aid excitant for the solid waste materials is prepared from the following raw materials in parts by weight: 40-60 parts of treated garbage penetrating fluid, 5-10 parts of sulfate and 2-6 parts of sodium gluconate. The treated garbage penetrating fluid is prepared into the grinding-aid exciting agent for solid waste materials, and the prepared exciting agent can improve the activity of slag, slag and slag, realizes the recycling of the garbage penetrating fluid and reduces the environmental pollution.
Description
Technical Field
The invention belongs to the technical field of industrial solid waste treatment, and particularly relates to a grinding-aid excitant for a solid waste material and a preparation method thereof.
Background
The industrial solid waste refers to solid waste such as mining waste rock, mineral processing tailings, fuel waste slag, chemical production and smelting waste slag generated in production activities such as industry and traffic, and mainly comprises waste such as industrial waste slag, waste scraps, sludge, tailings and the like, wherein the industrial waste slag mainly refers to slag, steel slag, furnace slag, lead-zinc tailings and phosphorus slag.
Slag is a by-product in a blast furnace iron making process. In the iron-making process, iron oxide is reduced into metallic iron at high temperature, impurities in iron ore such as silicon dioxide, aluminum oxide and the like react with lime and the like to generate a melt with silicate and aluminosilicate as main components, and the melt is quenched into loose and porous granular substances, namely blast furnace slag, which is called slag for short. The slag mainly refers to the waste slag discharged by burning coal in thermal power plants, industrial and civil boilers and other equipment. As China uses coal as a main energy source, the coal resource consumption occupies a major position. The steel slag is waste slag generated in the metallurgical industry, the generation rate of the steel slag is 8% -15% of the yield of crude steel, and the worldwide discharge amount of the steel slag in 2012 is about 1.8 hundred million t. The amount of steel slag produced in China is rapidly increasing with the rapid development of the steel industry. Therefore, the problem of handling and recycling slag, slag and steel slag is also becoming more and more important.
Patent CN202111304291.X discloses a slag activity excitant, a production method and production equipment thereof, wherein the slag activity excitant comprises the following raw materials in percentage by weight: 20-25% of grinding aid, 4-5% of reinforcing agent, 4-5% of retarder, 2-3% of early strength agent, 2-3% of water reducing agent and a proper amount of industrial salt. The grinding aid is one or a mixture of more of triethanolamine, triisopropanolamine, triethanolamine borate, diethanol monoisopropanolamine and glycerol; the reinforcing agent is one or a mixture of more of sodium thiosulfate and anhydrous sodium sulphate; the retarder is one or a mixture of more of molasses, dextrin, sodium gluconate and citric acid; the early strength agent is one or a mixture of more of calcium formate and sodium acetate; the water reducing agent is sodium lignosulphonate. The excitant can improve the activity of slag, reduce the cost of alkali excitation technology and meet the requirements of various engineering constructions.
Patent CN 113003974B discloses a slag ash activity excitant and a method for exciting the activity of the slag ash, wherein the slag ash activity excitant comprises the following components which are uniformly mixed according to a certain mass ratio: 30-50 parts of zeolite powder and 6-10 parts of alkali metal carbonate; 4-8 parts of magnesium oxide; 3-7 parts of manganese carbonate; 0.5 to 2 portions of permanganate; 1-2 parts of isobutanol; 1-5 parts of iron-based combustion promoter; 1-4 of rare earth combustion promoter. The slag ash activity excitant provided by the invention is added into high-temperature slag which is just taken out of a boiler, so that the content of active substances in the slag ash is improved, and the activity of the high-temperature slag is fully excited.
The slag activity excitant and the slag ash excitant have various and complex components, and the required chemical components need special industrial production, so that the industrial production consumes a large amount of manpower, material resources and financial resources, and generates certain industrial pollution, so that an environment-friendly excitant capable of reducing the consumption of the components specially produced in the industrial production is urgently needed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a grinding-aid exciting agent for solid waste materials and a preparation method thereof. The grinding-aid excitant is added into the solid waste material, and the activity of the solid waste material can be excited.
In order to achieve the effect, the invention adopts the following technical scheme:
the invention provides a grinding-aid excitant for solid waste materials, which is prepared from the following raw materials in parts by weight: 40-60 parts of treated garbage penetrating fluid, 5-10 parts of sulfate and 2-6 parts of sodium gluconate.
On the other hand, the invention provides a grinding-aid excitant for solid waste materials, which is prepared from the following raw materials in parts by weight: 60 parts of treated garbage penetrating fluid, 10 parts of sulfate and 2 parts of sodium gluconate.
The invention also provides a preparation method of the grinding aid excitant for the solid waste material, which comprises the following operation steps:
1) Installing a tubular ultrafiltration membrane component and a tubular ultrafiltration membrane system (TG-30 nm-8830) special for the landfill leachate according to an ultrafiltration membrane instruction manual;
2) Carrying out ultrafiltration treatment on the original garbage penetrating fluid by using a special tubular ultrafiltration membrane system for the garbage penetrating fluid, wherein the operation pressure is 4.0bar, the hydraulic pressure is 0.15bar, and the flux is 70LMH, so as to obtain the treated garbage penetrating fluid;
3) And adding the treated garbage penetrating fluid, the sulfate and the sodium gluconate into a reaction kettle, and stirring and uniformly mixing to obtain the exciting agent.
Further, the stirring time in the step 4) is 30 minutes, and the stirring speed is 60rpm/min.
The invention also provides application of the grinding-aid excitant in exciting solid waste materials.
Further, the solid waste material is any one of steel slag, slag and coal slag or a combination of any two or more of the steel slag, the slag and the coal slag.
The original landfill leachate of the invention mainly comes from the following three aspects: (1) natural rainfall and runoff in the landfill; (2) the original water content of the garbage is reduced; (3) water produced by anaerobic decomposition of microorganisms after sanitary landfills of refuse. The original landfill leachate mainly contains macromolecular organic matters (protein, aromatic compounds and phenolic compounds), micromolecular organic matters and inorganic salts, after the ultrafiltration, the macromolecular organic matters are intercepted, and the treated ultrafiltration leachate mainly contains the micromolecular organic matters and the inorganic salts, wherein the concentration of organic acids in the organic matters is more than or equal to 300mg/L, and the concentration of organic alcohols is more than or equal to 200mg/L.
Has the beneficial effects that:
1) The invention realizes the recycling of the garbage penetrating fluid generated by the urban garbage and reduces the environmental pollution.
2) The invention reduces the usage amount of chemical components in the excitant and reduces the energy consumption.
3) The invention finds that the treated garbage penetrating fluid can be used for preparing an exciting agent, can replace chemical reagents in chemical production to play a role, and belongs to the field of preparing exciting agents by using the garbage penetrating fluid for the first time.
4) The garbage penetrating fluid is used as the derivative of garbage, and the invention prepares the excitant from the treated garbage penetrating fluid, sulfate and sodium gluconate, fully recovers resources and belongs to an environment-friendly product.
Detailed Description
The present application will be described in further detail with reference to specific examples.
The following raw materials are all commercially available products, which are fully disclosed herein and should not be construed as limiting the source of the raw materials.
Hydrazine hydrate, available from jonanxin creative chemical ltd; n, N-bis (2-hydroxyethyl) ethylenediamine and N, N' -bis (2-hydroxypropyl) diethyltriamine, available from Shandongxin national chemical Co., ltd; sodium sulfate and ferric sulfate, available from yanto nine heavy chemical industries; triterpene saponins from Shanghai Zi reagent factory; sodium fatty alcohol polyoxyethylene sulfonate, available from Hubei Xingsheng Hengye science and technology Limited; polyether polycarboxylic acids and polyester polycarboxylic acids, available from ninton jize chemical ltd; sodium gluconate available from Donghao Fine chemical Co., ltd, wujiang City; ordinary portland cement, purchased from tang shan hong and special cement limited; a tubular ultrafiltration membrane component and a tubular ultrafiltration membrane system special for landfill leachate (TG-30 nm-8830), the membrane aperture is 30nm, the membrane cut-off Molecular Weight (MWCO) is 5000Da, the tubular ultrafiltration membrane component and the tubular ultrafiltration membrane system are purchased from Zhongke Ruiyang membrane technology (Beijing) Co., ltd., and an operation manual of the tubular ultrafiltration membrane special for the landfill leachate is from an official website (https:// www.risingsunmem.com/tech. Htmlid = 27).
Breaking strength: flexural strength test methods were performed according to GB/T17671-1999.
Compressive strength: the compressive strength test method was performed according to GB/T17671-1999.
The activity index is the ratio of the compressive strength of the sample to the compressive strength of the control cement.
1. Example 1
A grinding-aid excitant for solid waste materials is prepared by the following steps:
1) Installing a tubular ultrafiltration membrane component and a tubular ultrafiltration membrane system (TG-30 nm-8830) special for the landfill leachate according to an ultrafiltration membrane instruction manual;
2) Carrying out ultrafiltration treatment on the original garbage penetrating fluid by using a special tubular ultrafiltration membrane system for the garbage penetrating fluid, wherein the operation pressure is 4.0bar, the hydraulic pressure is 0.15bar, and the flux is 70LMH, so as to obtain the treated garbage penetrating fluid;
3) And adding 40 kg of treated garbage penetrating fluid, 5 kg of ferric sulfate and 2kg of sodium gluconate into a reaction kettle, and uniformly stirring for 30 minutes at a stirring speed of 60rpm/min to obtain the exciting agent.
2. Example 2
A grinding-aid excitant for solid waste materials is prepared by the following steps:
1) Installing a tubular ultrafiltration membrane component and a tubular ultrafiltration membrane system (TG-30 nm-8830) special for the landfill leachate according to an ultrafiltration membrane instruction manual;
2) Carrying out ultrafiltration treatment on the original garbage penetrating fluid by using a special tubular ultrafiltration membrane system for the garbage penetrating fluid, wherein the operation pressure is 4.0bar, the hydraulic pressure is 0.15bar, and the flux is 70LMH, so as to obtain the treated garbage penetrating fluid;
3) And adding 50 kg of treated garbage penetrating fluid, 7 kg of ferric sulfate and 4 kg of sodium gluconate into a reaction kettle, and uniformly stirring for 30 minutes at a stirring speed of 60rpm/min to obtain the exciting agent.
3. Example 3
A grinding-aid excitant for solid waste materials is prepared by the following steps:
1) Installing a tubular ultrafiltration membrane component and a tubular ultrafiltration membrane system (TG-30 nm-8830) special for the landfill leachate according to an ultrafiltration membrane instruction manual;
2) Carrying out ultrafiltration treatment on the original garbage penetrating fluid by using a special tubular ultrafiltration membrane system for the garbage penetrating fluid, wherein the operation pressure is 4.0bar, the hydraulic pressure is 0.15bar, and the flux is 70LMH, so as to obtain the treated garbage penetrating fluid;
3) And adding 55 kg of treated garbage penetrating fluid, 10kg of ferric sulfate and 6 kg of sodium gluconate into a reaction kettle, and uniformly stirring for 30 minutes at a stirring speed of 60rpm/min to obtain the exciting agent.
4. Example 4
A grinding-aid excitant for solid waste materials is prepared by the following steps:
1) Installing a tubular ultrafiltration membrane component and a tubular ultrafiltration membrane system (TG-30 nm-8830) special for the landfill leachate according to an ultrafiltration membrane instruction manual;
2) Carrying out ultrafiltration treatment on the original garbage penetrating fluid by using a special tubular ultrafiltration membrane system for the garbage penetrating fluid, wherein the operation pressure is 4.0bar, the hydraulic pressure is 0.15bar, and the flux is 70LMH, so as to obtain the treated garbage penetrating fluid;
4) And adding 60kg of treated garbage penetrating fluid, 10kg of ferric sulfate and 2kg of sodium gluconate into a reaction kettle, and uniformly stirring for 30 minutes at a stirring speed of 60rpm/min to obtain the exciting agent.
5. Comparative example 1
1) Preparing a raw material A: 60kg of hydrazine hydrate, 20kg of N, N-bis (2-hydroxyethyl) ethylenediamine, 10kg of N, N' -bis (2-hydroxypropyl) diethyltriamine and 10kg of sodium sulfate are respectively weighed and placed in a reaction kettle A to be uniformly stirred for 30 minutes at a stirring speed of 30rpm/min, so that the raw material A can be obtained.
2) Preparing a raw material B: weighing 10kg of triterpenoid saponin and 10kg of sodium fatty alcohol polyoxyethylene sulfonate respectively, placing the triterpenoid saponin and the sodium fatty alcohol polyoxyethylene sulfonate into a reaction kettle B, and stirring uniformly for 30 minutes at a stirring speed of 30rpm/min to obtain a raw material B.
3) 42kg of 40% polyether polycarboxylic acid, 42kg of polyester polycarboxylic acid and 12kg of raw material A are respectively weighed and placed in a reaction kettle C for uniformly stirring, wherein the stirring time is 10 minutes, and the stirring speed is 30rpm/min.
4) Respectively weighing 2kg of sodium gluconate and 2kg of raw material B, placing the materials into the reaction kettle in the step 3), and uniformly stirring the materials, wherein the stirring time is 5min, and the stirring speed is 30rpm/min, so as to obtain the exciting agent.
6. Performance experiments:
1) Application group 1:
adding the exciting agent obtained in the comparative example 1 into the low-activity converter hot splashing steel slag, wherein the addition amount is 3 percent of the weight of the steel slag;
adding the exciting agent obtained in the embodiment 1 into low-activity converter hot splashing steel slag, wherein the addition amount of the exciting agent is 3 percent of the weight of the steel slag;
adding the exciting agent obtained in the embodiment 2 into the low-activity converter hot splashing steel slag, wherein the addition amount of the exciting agent is 3 percent of the weight of the steel slag;
adding the exciting agent obtained in the embodiment 3 into the low-activity converter hot splashing steel slag, wherein the addition amount is 3 percent of the weight of the steel slag;
adding the exciting agent obtained in the embodiment 4 into the low-activity converter hot splashing steel slag, wherein the addition amount is 3 percent of the weight of the steel slag;
2) Application group 2
Adding the excitant obtained in the comparative example 1 into the slag, wherein the addition amount is 2 percent of the weight of the slag;
adding the excitant obtained in the example 1 into slag, wherein the addition amount is 2 percent of the weight of the slag;
adding the excitant obtained in the example 2 into slag, wherein the addition amount is 2 percent of the weight of the slag;
adding the excitant obtained in the example 3 into slag, wherein the addition amount is 2 percent of the weight of the slag;
the exciting agent obtained in the example 4 is added into slag, and the addition amount is 2 percent of the weight of the slag;
3) Application group 3
Adding the excitant obtained in the comparative example 1 into the slag, wherein the addition amount is 1 percent of the weight of the slag;
adding the excitant obtained in the example 1 into slag, wherein the adding amount is 1 percent of the weight of the slag;
adding the excitant obtained in the example 2 into slag, wherein the adding amount is 1 percent of the weight of the slag;
the exciting agent obtained in the example 3 is added into slag, and the addition amount is 1 percent of the weight of the slag;
the exciting agent obtained in the example 4 is added into slag, and the addition amount is 1 percent of the weight of the slag;
7. results of performance testing
The solid waste materials produced by the application groups 1-3 were tested for the performance indexes of 3d flexural strength, 7d flexural strength, 28d flexural strength, 3d compressive strength, 7d compressive strength, 28d compressive strength and activity according to the relevant national standards, and the test results are shown in table 2, in which cement is used as the reference group. Table 1 shows the blending amount of each raw material of the exciting agent of comparative example 1 and examples 1-4, table 2 shows the performance test results of different exciting agents added into steel slag, slag and slag of comparative group and experimental group 1-4, wherein Table 2-1 shows the performance test results of application group 1; table 2-2 shows the results of the performance tests of application group 2; tables 2-3 show the results of the performance tests of application group 3.
TABLE 1 blending amounts of respective raw materials of the exciting agent in comparative example 1 and examples 1 to 4
TABLE 2-1 test results for Performance of application group 1
Table 2-2 application group 2 performance test results
Tables 2-3 application group 3 Performance test results
By analyzing the performance test results of the application group 1 in the table 2-1, the excitant containing hydrazine hydrate, N-bis (2-hydroxyethyl) ethylenediamine, N' -bis (2-hydroxypropyl) diethyltriamine, sodium sulfate, triterpenoid saponin, sodium fatty alcohol polyoxyethylene sulfonate, polyether polycarboxylic acid, polyester polycarboxylic acid and sodium gluconate is compared with the excitant prepared in the application on the performance indexes of flexural strength, compressive strength and activity, and the performance indexes of the excitant are basically consistent on the performance indexes of 3d flexural strength, 7d flexural strength, 28d flexural strength, 3d compressive strength, 7d compressive strength, 28d compressive strength and activity, so that the excitant prepared in the application and the excitant in the comparative example 1 have basically consistent functions, and the excitant can be used for exciting the activity of solid waste materials.
The above examples are only illustrative of the present invention and are not intended to limit the present invention, and those skilled in the art can make modifications without inventive contribution to the present invention as needed after reading the present specification, but are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. A grinding-aid excitant for solid waste materials is characterized by being prepared from the following raw materials in parts by weight: 40-60 parts of treated garbage penetrating fluid, 5-10 parts of sulfate and 2-6 parts of sodium gluconate.
2. The grinding aid excitant for solid waste materials according to claim 1 is characterized by being prepared from the following raw materials in parts by weight: 60 parts of treated garbage penetrating fluid, 10 parts of sulfate and 2 parts of sodium gluconate.
3. A process for the preparation of a grinding aid excitant according to claim 1 or 2, comprising the following operating steps:
1) Carrying out ultrafiltration treatment on the original garbage penetrating fluid by using a special tubular ultrafiltration membrane system for the garbage penetrating fluid to obtain the treated garbage penetrating fluid;
2) Adding the treated garbage penetrating fluid, the sulfate and the sodium gluconate into a reaction kettle, and stirring and uniformly mixing to obtain the exciting agent.
4. The method for preparing the grinding aid excitant of claim 3, wherein the stirring time is 30 minutes; the stirring speed was 60rpm/min.
5. Use of a grinding aid excitant according to claim 1 or 2 for exciting solid waste material.
6. The use of claim 5, wherein the solid waste material is any one of steel slag, coal slag or a combination of any two or more of them.
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2022
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