CN114907030A - Cement raw material additive and application thereof and cement production process - Google Patents
Cement raw material additive and application thereof and cement production process Download PDFInfo
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- CN114907030A CN114907030A CN202210589489.5A CN202210589489A CN114907030A CN 114907030 A CN114907030 A CN 114907030A CN 202210589489 A CN202210589489 A CN 202210589489A CN 114907030 A CN114907030 A CN 114907030A
- Authority
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- China
- Prior art keywords
- additive
- raw material
- cement
- cement raw
- acrylic acid
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- 239000004568 cement Substances 0.000 title claims abstract description 157
- 239000002994 raw material Substances 0.000 title claims abstract description 123
- 239000000654 additive Substances 0.000 title claims abstract description 107
- 230000000996 additive effect Effects 0.000 title claims abstract description 101
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000002699 waste material Substances 0.000 claims abstract description 78
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 66
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 238000000227 grinding Methods 0.000 claims abstract description 54
- 238000005194 fractionation Methods 0.000 claims abstract description 11
- 235000012054 meals Nutrition 0.000 claims description 45
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 24
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- 229920005862 polyol Polymers 0.000 claims description 16
- 150000003077 polyols Chemical class 0.000 claims description 15
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 claims description 14
- 239000003623 enhancer Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 8
- 230000008707 rearrangement Effects 0.000 claims description 8
- 229920002125 Sokalan® Polymers 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 7
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 claims description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 7
- XBPCUCUWBYBCDP-UHFFFAOYSA-N Dicyclohexylamine Chemical compound C1CCCCC1NC1CCCCC1 XBPCUCUWBYBCDP-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 229920001451 polypropylene glycol Polymers 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 5
- 238000007127 saponification reaction Methods 0.000 claims description 5
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 4
- AGNTUZCMJBTHOG-UHFFFAOYSA-N 3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]propane-1,2-diol Chemical compound OCC(O)COCC(O)COCC(O)CO AGNTUZCMJBTHOG-UHFFFAOYSA-N 0.000 claims description 4
- 235000011187 glycerol Nutrition 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 235000013379 molasses Nutrition 0.000 claims description 4
- 235000014653 Carica parviflora Nutrition 0.000 claims description 3
- 241000243321 Cnidaria Species 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 235000019738 Limestone Nutrition 0.000 claims description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 3
- 229930006000 Sucrose Natural products 0.000 claims description 3
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 150000001720 carbohydrates Chemical class 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims description 3
- 229940043276 diisopropanolamine Drugs 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- -1 polyol ethers Chemical class 0.000 claims description 3
- RPDAUEIUDPHABB-UHFFFAOYSA-N potassium ethoxide Chemical compound [K+].CC[O-] RPDAUEIUDPHABB-UHFFFAOYSA-N 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005720 sucrose Substances 0.000 claims description 3
- 239000011344 liquid material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003245 coal Substances 0.000 abstract description 4
- 230000003009 desulfurizing effect Effects 0.000 abstract 1
- 238000001354 calcination Methods 0.000 description 14
- 239000003513 alkali Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229960002684 aminocaproic acid Drugs 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- FRQONEWDWWHIPM-UHFFFAOYSA-N n,n-dicyclohexylcyclohexanamine Chemical compound C1CCCCC1N(C1CCCCC1)C1CCCCC1 FRQONEWDWWHIPM-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
- C04B7/42—Active ingredients added before, or during, the burning process
- C04B7/428—Organic materials
-
- 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
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present disclosure relates to a cement raw material additive containing an acrylic acid heavy component waste liquid and/or a fractionated waste of the acrylic acid heavy component waste liquid. The cement raw material additive provided by the disclosure can recycle the waste liquid containing the acrylic acid heavy component and/or the waste material after fractionation of the acrylic acid heavy component waste liquid in cement raw material grinding and cement production, and has good comprehensive effects of improving the yield of a raw material mill, reducing the coal consumption, improving the burnability of the raw material, desulfurizing and the like.
Description
Technical Field
The disclosure relates to the field of cement processing, in particular to a cement raw material additive, application thereof and a cement production process.
Background
The modern cement mainstream production process is divided into three major sections, wherein the first section is a raw material grinding section: the calcareous raw material, the clayey raw material and a small amount of correction raw material are crushed or dried, then are matched and ground according to a certain proportion, and are prepared into cement raw materials with proper components and uniform quality; the second is a raw material calcining section: adding the ground cement raw materials into a cement kiln, and calcining until part of the cement raw materials are molten to obtain cement clinker with calcium silicate as a main component; the third is a clinker powder grinding cement working section: adding a proper amount of gypsum and sometimes some mixed materials into clinker to be ground, and mixing and grinding the mixture to the industrial standard fineness to obtain the cement. The cement is called two mills and one burning in the three production process industries for short.
Because the energy consumption of cement production is high, the reduction of the energy consumption of cement production is an important research direction, people adopt a plurality of methods to improve the utilization efficiency of the energy of cement production and reduce the energy consumption, wherein, a large amount of cement grinding aids are applied in the cement clinker grinding process, thereby obtaining wide social benefits and economic benefits. However, the important raw meal grinding and firing processes in cement production processes are not much studied.
At present, the traditional thermal incineration process is mostly adopted for acrylic acid heavy components in the industry, namely fuel gas or fuel oil is combusted in an incinerator, the acrylic acid heavy components are added after the temperature in the incinerator reaches 700-750 ℃, and the acrylic acid heavy components are oxidized and decomposed at high temperature to become carbon dioxide and water which are harmless to the environment; or high-temperature depolymerization is carried out firstly, so that the heavy component of the acrylic acid is cracked into the acrylic acid at high temperature, and then the residual residue is put into an incinerator; however, the two methods have the defects of large energy consumption, high operation cost, insufficient recovery and utilization of valuable components in the acrylic acid heavy component waste liquid and the like.
Disclosure of Invention
The purpose of the present disclosure is to provide a cement raw material additive, its application and cement production process, and further realize the reasonable utilization of resources.
In order to achieve the above object, a first aspect of the present disclosure provides a cement raw material additive containing an acrylic acid heavy component waste liquid and/or a fractionated waste of the acrylic acid heavy component waste liquid.
Optionally, the acrylic acid heavy component waste liquid contains acrylic acid, acrylic acid polymer, polymerization inhibitor and benzaldehyde; further preferably, the acrylic acid heavy component waste liquid contains, by weight and based on the weight of the acrylic acid heavy component waste liquid, 5-20% of acrylic acid, 40-60% of acrylic acid polymer, 5-10% of polymerization inhibitor, 1-5% of benzaldehyde and 1-20% of other impurities.
Optionally, the waste material after fractionation of the acrylic acid heavy component waste liquid is a mixed acidic residue obtained after recovery of acrylic acid from the acrylic acid heavy component waste liquid; optionally, the acrylic acid recovery step comprises reduced pressure distillation of the acrylic acid heavy component waste liquid; optionally, the conditions of the reduced pressure distillation comprise: the pressure is-0.1 to 0MPa, the temperature is 100 ℃ and 250 ℃, and the time is 4 to 12 hours.
Optionally, the cement raw meal additive also contains one or two of waste liquid from the caprolactam preparation by a rearrangement method and saponified waste lye from the cyclohexane oxidation; further alternatively, the waste liquid from the rearrangement process for producing caprolactam is not more than 50 wt%, preferably 1-10 wt% based on the weight of the cement raw meal additive; the cyclohexane oxidation saponification waste lye accounts for not more than 50 wt% of the weight of the cement raw material additive, and preferably 2-20 wt%.
Optionally, the cement raw meal additive contains an alkalinity enhancer; the alkaline enhancer accounts for 30-70 wt% of the cement raw material additive by weight; preferably 40-50 wt%; the alkalinity enhancer is at least one selected from sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, magnesium oxide, sodium methoxide, sodium ethoxide and potassium ethoxide.
Optionally, the cement raw material additive contains an alcohol amine additive and/or a polyol ether additive; the proportion of the alcamines additive in the cement raw material additive is not more than 20 wt% by weight; preferably 5-10 wt%; the proportion of the polyol ether additive in the cement raw material additive is not more than 30 wt%, preferably 10-20 wt%; further optionally, the alkanolamine additive is at least one selected from the group consisting of triethanolamine, triisopropanolamine, tricyclohexanolamine, diethanolisopropanolamine, diethanomonocyclohexanolamine, diisopropanolamine, dicyclohexylamine, and dicyclohexylamine monoisopropanolamine; the polyol ether additive includes at least one selected from the group consisting of a polyol including at least one selected from the group consisting of ethylene glycol, propylene glycol, glycerin, polyethylene glycol, triglycerol, and polypropylene glycol, a polyol ether selected from the group consisting of polyethylene glycol ether and/or polypropylene glycol ether, and a saccharide selected from the group consisting of sucrose and/or molasses.
Optionally, the cement raw meal additive contains a solvent, preferably the solvent is water; the solvent accounts for 30-70 wt% of the cement raw material additive.
The present disclosure provides, in a second aspect, an application of a cement raw meal additive in cement raw meal grinding, the application including: and grinding the cement raw material to be ground and the cement raw material additive together to obtain a raw material grinding product.
Optionally, the cement raw meal additive accounts for 0.01-1 wt% of the weight of the cement raw meal to be ground; the raw material to be ground for the cement comprises a calcareous raw material, a clayey raw material and a correction raw material; the calcareous raw material is at least one selected from limestone, marl, chalk, shells and coral; the clayey raw material is at least one selected from loess, clay, shale, mudstone, siltstone and silt; the correcting raw material is at least one selected from iron ore, copper slag, sandstone and river sand.
A third aspect of the present disclosure provides a cement production process, comprising:
roasting the obtained raw material grinding product in a rotary kiln to obtain cement clinker to be ground; and grinding the cement clinker to be ground to obtain a clinker ground product.
Through the technical scheme, the waste liquid containing the acrylic acid heavy component and/or the waste material after fractionation of the acrylic acid heavy component waste liquid is used as the cement raw material additive, so that the acrylic acid heavy component can be recycled in cement raw material grinding and cement production, the comprehensive effects of improving the yield, reducing the coal consumption and the like are achieved, the cost is saved, and the economic benefit and the environmental protection benefit are more remarkable.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present disclosure. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
A first aspect of the present disclosure provides a cement raw meal additive containing an acrylic acid heavy component waste liquid and/or a fractionated waste of the acrylic acid heavy component waste liquid.
According to the method, the waste liquid containing the acrylic acid heavy component and/or the waste material after fractionation of the acrylic acid heavy component waste liquid is used as the cement raw material additive, so that the acrylic acid heavy component can be recycled in cement raw material grinding and cement production, the comprehensive effects of improving the yield, reducing the coal consumption and the like are good, the cost is saved, and meanwhile, the economic benefit and the environmental protection benefit are more remarkable.
According to the present disclosure, the acrylic acid heavy component waste liquid contains acrylic acid, acrylic acid polymer, polymerization inhibitor, benzaldehyde and the balance of other impurities; preferably, the acrylic acid heavy component waste liquid contains 5-20 wt% of acrylic acid, 40-60 wt% of acrylic acid polymer, 5-10 wt% of polymerization inhibitor, 1-5 wt% of benzaldehyde and 1-20 wt% of other impurities by weight and based on the weight of the acrylic acid heavy component waste liquid.
In the cement raw meal additive disclosed by the invention, the waste material after fractionation of the acrylic acid heavy component waste liquid can be mixed acidic residue obtained after acrylic acid is recovered from the acrylic acid heavy component waste liquid; as a preferred embodiment of the present disclosure, the recovery step of acrylic acid comprises distillation of the acrylic acid heavy component waste liquid; optionally, the conditions of the distillation comprise: the pressure is-0.1 to 0MPa, the temperature is 100 ℃ and 250 ℃, and the time is 4 to 12 hours.
As a preferred embodiment of the present disclosure, the cement raw meal additive may further contain one or both of a waste liquid from a rearrangement process for producing caprolactam and a saponified waste lye from cyclohexane oxidation; wherein, except water is removed from caprolactam waste liquid, the main organic components such as aminocaproic acid, caprolactam, polymer and the like account for about 50 to 70 weight percent, the main inorganic components are ammonium sulfate accounting for about 20 to 40 weight percent, and sodium chloride, sodium nitrate, sodium thiocyanate and the like account for about 5 to 10 weight percent in total. The cyclohexane oxidation saponification waste lye contains the components of organic sodium as the main component and has the synergistic effect of grinding and the like.
Optionally, the waste liquid from the rearrangement process for producing caprolactam is 0-50 wt%, preferably 1-10 wt%, more preferably 1-8 wt%, and even more preferably 1-6 wt% of the cement raw meal additive; the cyclohexane oxidation saponification waste lye accounts for 0-50 wt%, preferably 2-20 wt% of the cement raw material additive.
The waste liquid of the heavy component of acrylic acid and/or the waste material after fractionation of the waste liquid of the heavy component of acrylic acid can be directly used as the admixture of cement raw material for grinding without any pretreatment; the effect of adding the regulating additive is better. The adjusting additive refers to a component which is added into the grinding aid and is helpful for improving grinding and enhancing effects, and the composition and the addition amount of the adjusting additive are not limited in the invention, and the adjusting additive can be added as a single component or a conventional grinding aid in the form of an additive.
According to the disclosure, the cement raw meal additive can contain an alkalinity enhancer, which is a substance capable of enhancing the alkalinity of the industrial waste alkali liquor, such as an alkali compound, and can reduce the discharge amount of sulfur dioxide; the alkali enhancer may be 30-70 wt% of the cement raw material additive by weight; preferably 40-50 wt%; the alkalinity enhancer may be at least one selected from the group consisting of sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, magnesium oxide, sodium methoxide, sodium ethoxide, and potassium ethoxide. In the present disclosure, the acrylic acid heavy component-containing waste liquid and/or the waste after fractionation of the acrylic acid heavy component-containing waste liquid and the alkali improver may be stirred in the mixing process, so that the acrylic acid heavy component-containing waste liquid and/or the waste after fractionation of the acrylic acid heavy component-containing waste liquid and the alkali improver are sufficiently mixed.
According to the present disclosure, the cement raw meal additive may contain other optional adjustment additives, and preferably, the adjustment additives may include at least one selected from the group consisting of alcohol amine additives and polyol ether additives.
According to the disclosure, the cement raw material additive may contain an alcamines additive, which helps to eliminate static electricity and improve grinding effect; the proportion of the alcamines additive in the cement raw material additive can be not more than 20 wt% by weight; preferably 5-10 wt%; the alkanolamine additive may be at least one selected from the group consisting of triethanolamine, triisopropanolamine, tricyclohexylamine, diethanolisopropanolamine, diethanolisocyclohexanolamine, diisopropanolamine monocyclohexanolamine, dicyclohexylamine, and dicyclohexylamine monoisopropanolamine.
According to the disclosure, the cement raw material additive may contain a polyol ether additive, which helps to eliminate static electricity and improve grinding effect; by weight, the proportion of the polyol ether additive in the cement raw material additive can be not more than 30 percent; preferably 10-20 wt%; the polyol ether-based additive may include at least one selected from the group consisting of a polyol, which may include at least one selected from the group consisting of ethylene glycol, propylene glycol, glycerin, polyethylene glycol, triglycerol, and polypropylene glycol, a polyol ether, which may be selected from the group consisting of polyethylene glycol ether and/or polypropylene glycol ether, and a saccharide selected from the group consisting of sucrose and/or molasses.
According to the present disclosure, the cement raw meal additive may further contain a solvent, preferably the solvent is water; the proportion of the solvent in the cement raw material additive may be 30 to 70% by weight.
The present disclosure provides, in a second aspect, an application of a cement raw meal additive in cement raw meal grinding, the application including: grinding the cement raw material to be ground and the cement raw material additive together to obtain a raw material grinding product; wherein, the cement raw material additive is the cement raw material additive provided by the disclosure.
In the present disclosure, the industrial waste liquid may be directly used for grinding cement raw materials, or may be optionally blended and then used as cement raw materials for grinding.
Optionally, the cement raw meal additive provided by the present disclosure may be used for grinding of cement raw meal to be ground in an internal mixing amount of 0.01-1 wt%, so as to achieve the effects of grinding-aid, yield-increasing and coal saving, i.e., the cement raw meal additive accounts for 0.01-1 wt% of the weight of the cement raw meal to be ground by weight; the cement raw material to be ground is well known to those skilled in the art, and refers to a cement raw material before primary grinding in a cement "two-grinding and one-burning" preparation process, and can comprise a calcareous raw material, a clayey raw material and a correcting raw material; the calcareous material may be at least one selected from limestone, marl, chalk, shells and coral; the clayey raw material may be at least one selected from loess, clay, shale, mudstone, siltstone and silt; the calibration raw material may be at least one selected from the group consisting of iron ore, copper slag, sandstone, and river sand.
A third aspect of the present disclosure provides a cement production process, comprising:
roasting the obtained raw material grinding product in a rotary kiln to obtain cement clinker to be ground; and grinding the cement clinker to be ground to obtain a clinker ground product.
Calcination of the raw meal mill product is well known to those skilled in the art in light of this disclosure and refers to feeding the raw meal mill product into a cement rotary kiln for calcination to partial fusion to produce calcium silicate cement clinker (granular or block) having calcium silicate as a major component.
The present disclosure is further illustrated by the following examples, but is not to be construed as being limited thereby.
The acrylic acid heavy component waste liquid used in the disclosed embodiment is marked as C1 and is mainly taken from shanghai friendship acrylic acid limited company. The acrylic acid heavy component waste liquid is detected, and contains 15 wt% of acrylic acid, 55 wt% of acrylic acid polymer, 8 wt% of polymerization inhibitor, 2% of benzaldehyde and 20 wt% of other impurities.
The preparation method of the waste after fractionation of the acrylic acid heavy component waste liquid used in the embodiment of the disclosure comprises the following steps: and (3) distilling a proper amount of the acrylic acid heavy component waste liquid at 160 ℃ and-0.1 MPa for 6h, recovering crude acrylic acid to obtain residual mixed acid residue, and marking the mixed acid residue as C2.
The waste liquid and the waste saponification lye used in the rearrangement process for preparing caprolactam in the embodiment of the present disclosure are mainly obtained from caprolactam division of the Barring division of petrochemical group of China.
The initial waste stream from the rearrangement process for producing caprolactam, having a concentration of about 4.5% by weight, was designated as B1 liquid.
The process for preparing cyclohexanone by cyclohexane oxidation is a catalyst-free oxidation method. The initial waste liquid of the saponified waste lye, having a concentration of about 6% by weight, was designated as A1 liquid.
Conditioning additives used in the examples: ethylene glycol, glycerol, molasses, triglycerol, triethanolamine and diethanol monoisopropanolamine are all commercially available, the alkalinity enhancers used in the examples: sodium hydroxide, calcium hydroxide, magnesium oxide are all commercially available.
In the examples, the mixing ratio of the cement raw material additive is cement raw material additive weight/cement raw material weight to be ground.
The specific operation steps of the application experiment are as follows:
(1) pre-homogenizing all raw materials of the cement raw material, crushing the raw materials to 7mm, and performing secondary homogenization again; and (3) putting the secondarily homogenized raw materials into a drying oven, and drying for at least 4 hours at 105 +/-5 ℃ for later use to obtain the cement raw material to be ground.
(2) Blank experiment: weighing prepared 5kg of cement raw materials to be ground, putting the cement raw materials into a phi 500X 500mm experimental standard ball mill, grinding the cement raw materials to the extent that the residue of a 80 mu m square-hole sieve is 16-18 percent, and recording the grinding time T S And (4) testing the surplus sieved by the 80-micron square-hole sieve of the cement raw material powder according to GB/T1345.
(3) Comparison experiment with additives: the cement raw material additive is mixed according to the experimental plan, and uniformly added on the above-mentioned prepared 5kg raw material, and the above-mentioned raw material is ground into powder with same T S And measuring the residue of the 80-micron square-hole sieve of the cement raw material powder. The grinding aid effect of the additive is reflected by calculating the difference between the screen residue of a blank raw material sample 80 mu m square-hole screen and the screen residue of a raw material-doped grinding aid 80 mu m square-hole screen.
(4) The admixture of the cement raw material does not cause adverse effect on the easy burning property of the cement raw material, the specific industry adopts the change situation of the easy burning property of the raw material before and after the addition of the grinding aid into the same cement raw material sample, and the content of free calcium oxide in the clinker is not increased as an evaluation index. Specifically, samples were taken according to GB/T26566 and subjected to calcination test, and free calcium oxide was measured according to GB/T176.
The concrete comparative example KB1 and the example SY1-8 both adopt raw materials of cement raw materials of Jiangxi Yadong cement company, and the grinding time is 9.0 minutes.
Comparative example KB1
The cement raw materials to be ground are independently subjected to raw material grinding treatment, and specific results are shown in table 1.
Example SY1
The C1 liquid (100 weight portions) was mixed with cement raw meal to be ground in an amount of 0.9% by weight to conduct the grinding treatment and calcination of the raw meal, and the results are shown in Table 1.
Example SY2
The waste C2 (100 parts by weight) was mixed with 100 parts by weight of water and then mixed with 1.6% by weight of cement raw materials to be ground to conduct grinding treatment and calcination, and the results are shown in Table 1.
Example SY3
The cement raw material additive, which was prepared by adding 45 parts by weight of an alkali enhancer (sodium hydroxide) to 100 parts by weight of the C1 liquid, was added to 0.1% by weight of the cement raw material to be ground, and the result was shown in table 1.
Example SY4
The concrete results are shown in table 1, in which 50 parts by weight of an alkaline enhancer (calcium hydroxide) was added to 100 parts by weight of the C1 solution, 8 parts by weight of triglycerin was added as an additive to cement raw materials, and the cement raw materials were mixed in an amount of 0.1% by weight to perform raw material grinding and calcination.
Example SY5
The concrete results are shown in table 1, in which 37 parts by weight of an alkali enhancer (sodium hydroxide) is added to 100 parts by weight of the C1 solution, 20 parts by weight of triglycerin and 5 parts by weight of triethanolamine are added as a cement raw material additive, and 0.3% by weight of the additive is mixed with a cement raw material to be ground to perform raw material grinding and calcination.
Example SY6
After adding 42 parts by weight of an alkaline enhancer (sodium hydroxide) to 100 parts by weight of the C2 waste, 16 parts by weight of triglycerin and 8 parts by weight of triethanolamine were added as an additive for cement raw materials, and the raw materials to be ground for cement were mixed in an amount of 0.5% by weight to perform raw material grinding treatment and calcination, and the specific results are shown in table 1.
Example SY7
The cement raw meal additive obtained by mixing the C1 liquid (100 parts by weight) and the B1 liquid (50 parts by weight) was added to a cement raw meal in an amount of 1% by weight to perform a grinding process and calcination, and the concrete results are shown in table 1.
Example SY8
The cement raw meal additive obtained by mixing the liquid C1 (100 parts by weight) and the liquid A1 (50 parts by weight) was added to a cement raw meal in an amount of 1% by weight to perform a grinding process and calcination, and the concrete results are shown in Table 1.
Comparative example KB2
Crude acrylic acid D1(100 parts by weight) was added with 70 parts by weight of an alkali improver (sodium hydroxide) as an additive to cement raw materials, and the cement raw materials to be ground were added in an amount of 0.2% by weight to conduct raw material grinding treatment and calcination, and the results are shown in Table 1.
TABLE 1
As can be seen from Table 1, grinding aid performance is optimized more significantly with the addition of the additive. Meanwhile, the content of free calcium after calcination is slightly improved.
Specific example SY9-12, a unified formula of SY5, with 0.3% by weight of each blend, was used for comparison with the raw materials of cement plants in different regions, and the results are shown in Table 2.
TABLE 2
As can be seen from Table 2, the application experiment of the cement raw material grinding aid disclosed by the invention on different cement plant raw materials shows beneficial effects in grinding aid and easy-burning property. But the expressed effect is different due to the difference of ore materials of each cement plant.
The preferred embodiments of the present disclosure have been described in detail above, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A cement raw meal additive, characterized in that the cement raw meal additive contains acrylic acid heavy component waste liquid and/or waste material after fractionation of the acrylic acid heavy component waste liquid.
2. The additive for cement raw meal according to claim 1, wherein,
the acrylic acid heavy component waste liquid contains acrylic acid, acrylic acid polymer, polymerization inhibitor, benzaldehyde and the balance of other impurities;
the acrylic acid heavy component waste liquid contains 5-20 wt% of acrylic acid, 40-60 wt% of acrylic acid polymer, 5-10 wt% of polymerization inhibitor, 1-5 wt% of benzaldehyde and 1-20 wt% of other impurities by weight based on the weight of the acrylic acid heavy component waste liquid.
3. The cement raw meal additive according to claim 1 or 2, wherein the waste after fractionation of the acrylic acid heavy component waste liquid is a mixed acidic residue obtained by recovering acrylic acid from the acrylic acid heavy component waste liquid;
optionally, the step of recovering acrylic acid comprises distillation of the acrylic acid heavy component waste liquid;
optionally, the conditions of the distillation comprise: the pressure is-0.1 to 0MPa, the temperature is 100 ℃ and 250 ℃, and the time is 4 to 12 hours.
4. The cement raw meal additive as set forth in claim 1, wherein the cement raw meal additive further comprises one or both of a waste liquid from a rearrangement process for producing caprolactam and a saponified waste lye from a cyclohexane oxidation process;
optionally, the waste liquid from the rearrangement process for producing caprolactam is not more than 50 wt%, preferably 1-10 wt% of the cement raw meal additive; the cyclohexane oxidation saponification waste lye accounts for not more than 50 wt% of the weight of the cement raw material additive, and preferably 2-20 wt%.
5. The additive for cement raw meal according to claim 1, wherein,
the cement raw material additive contains an alkalinity enhancer; the alkaline enhancer accounts for 30-70 wt% of the cement raw material additive by weight; preferably 40-50 wt%;
optionally, the alkalinity enhancer is selected from at least one of sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, magnesium oxide, sodium methoxide, sodium ethoxide, and potassium ethoxide.
6. The raw cement additive as claimed in claim 1, wherein the raw cement additive comprises an alcamines additive and/or a polyol ethers additive;
the proportion of the alcamines additive in the cement raw material additive is not more than 20 wt%, preferably 5-10 wt%; the proportion of the polyol ether additive in the cement raw material additive is not more than 30 wt%, preferably 10-20 wt%;
optionally, the alkanolamine additive is at least one selected from the group consisting of triethanolamine, triisopropanolamine, tricyclohexanolamine, diethanolisopropanolamine, diethanolisocyclohexanolamine, diisopropanolamine, dicyclohexylamine, and dicyclohexylamine monoisopropanolamine;
the polyol ether additive includes at least one selected from the group consisting of a polyol including at least one selected from the group consisting of ethylene glycol, propylene glycol, glycerin, polyethylene glycol, triglycerol, and polypropylene glycol, a polyol ether selected from the group consisting of polyethylene glycol ether and/or polypropylene glycol ether, and a saccharide selected from the group consisting of sucrose and/or molasses.
7. The cement raw meal additive according to any of the claims 1-6, wherein the cement raw meal additive comprises a solvent, preferably the solvent is water; the solvent accounts for 30-70 wt% of the cement raw material additive.
8. The application of cement raw meal additive in cement raw meal grinding comprises the following steps: grinding the cement raw material to be ground and the cement raw material additive together to obtain a raw material grinding product; wherein the cement raw material additive is the cement raw material additive as set forth in any one of claims 1 to 7.
9. The use according to claim 8, wherein the cement raw meal additive according to any one of claims 1-8 is present in an amount of 0.01-1% by weight of the cement raw meal to be ground;
the raw material to be ground for the cement comprises a calcareous raw material, a clayey raw material and a correction raw material;
the calcareous raw material is at least one selected from limestone, marl, chalk, shells and coral; the clayey raw material is at least one selected from loess, clay, shale, mudstone, siltstone and silt; the correcting raw material is at least one selected from iron ore, copper slag, sandstone and river sand.
10. A cement production process, comprising:
roasting the raw meal grinding product obtained by the application of the method in claim 8 or 9 in a rotary kiln to obtain cement clinker to be ground; and grinding the cement clinker to be ground to obtain a clinker ground product.
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Application publication date: 20220816 |