CN1349947A - Cement produced with sugar refining filter mud via dry process - Google Patents

Cement produced with sugar refining filter mud via dry process Download PDF

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Publication number
CN1349947A
CN1349947A CN01132605A CN01132605A CN1349947A CN 1349947 A CN1349947 A CN 1349947A CN 01132605 A CN01132605 A CN 01132605A CN 01132605 A CN01132605 A CN 01132605A CN 1349947 A CN1349947 A CN 1349947A
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filter mud
cement
dry process
mud
sugar
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CN01132605A
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CN1227178C (en
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朱凤玲
姜胜平
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XINJIANG INST OF BUILDING MATERIAL
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XINJIANG INST OF BUILDING MATERIAL
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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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

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Abstract

The invention relates to a cement produced by using sugar house scum insteed of partial limestone and adopting dry method, and its raw material composition is formed from (wt%) limestone 43.33-65.29, scum 11.52-35.45, shale 18.61-20.52 and iron powder 2.61-2.67, and its clinker modulus is: limestone saturatino factor KH=0.90 minus or plus 0.02, alumina modulus p=0.95 minus or plus 0.1 and silicic acid modulus n=2.0 minus or plus 0.1. Said method not only can improve environment, but also can save energy source.

Description

Cement with sugar refining filter mud via dry process production
Technical field: the invention belongs to the improvement of producing cement products, the particularly cement of producing with sugar refining filter mud via dry process with sugar mill mud instead of part Wingdale.
Background technology: sugar mill mud is a remaining waste after the beet sugar manufacture, a large amount of sugar mill mud of the annual discharge of sugar refinery, and discharging with accumulating over a long period, pile up like a mountain, taken a large amount of soils, and contaminate environment, becomes society's one big public hazards.The development and use of filter mud are produced cement with filter mud instead of part Wingdale, are not only utilization of waste material, have solved the discharging wastes problem, have improved environment, and have saved limestone mineral resource, save substantial contribution for country.Application number: 89101918.9, name is called the application for a patent for invention of " a kind of wet method for making cement from filter residue of sugar house of using ", being filter mud that the sugaring workshop is discharged is delivered directly between cementing truck in the thickner with pump, delivers in the batching storehouse production cement of preparing burden again after thickening.This production method requires the cement mill must build near the sugar refinery, and need to be equipped with the handling equipment of carrying filter mud and store facility, facility investment is bigger, be fit to build the new production line that meets this method particular requirement, be not suitable for building up the production of production line and dry process production line, and the cement energy consumption height of producing.
Summary of the invention: the object of the present invention is to provide a kind of cement of producing with sugar refining filter mud via dry process, adopt dry process to replace backward wet processing all different with technology batching rate value with production technique, the material proportion of foregoing invention patent application.Filter mud does not need special processing, can satisfy the requirement of existing dry cement production line, not only solved the utilization of waste material of sugar mill mud, improve environment, and produce this cement and need not limit the factory site in cement mill, do not need the special specific equipment and the process facility of carrying filter mud that be equipped with yet, save facility investment, convenient for production, consumes energy is few.
The object of the present invention is achieved like this:
With the cement that sugar refining filter mud via dry process is produced, the weight percentage of its proportioning raw materials is: Wingdale 43.33-65.29, filter mud 11.52-35.45, shale 18.61-20.52, iron powder 2.61-2.67; Its grog rate value is: Wingdale saturation factor KH=0.90 ± 0.02, aluminium-oxygen modulus p=0.95 ± 0.1, silicate ratio n=2.0 ± 0.1.
Filter mud is in the sugaring process, lime is made milk of lime put into the raw sugar slurry, feeds CO again 2Gas utilizes the CaCO that forms 3The capillary adsorption that trickle crystal produces, the pigment in the absorption raw sugar slurry, organic and inorganic impurity etc., and form precipitation, finally through press filtration with after syrup separates, and the waste of discharging.Its chemical ingredients is based on CaO, and next contains a spot of SiO 2, Fe 2O 3, Al 2O 3, MgO and organism etc.Its mineral composition is with calcite (CaCO 3) be main, and contain small amount of clay matter mineral (2SiO 2Al 2O 3).The filter mud water content that discharge in sugar refinery generally about 27%, is the lotion state, deposits for some time after air-dry, and moisture is powdery or bulk about 13%.Because the CaO content in the filter mud is at 41%-45%, therefore can be used as calcareous raw material instead of part Wingdale is used for manufacture of cement.In xeothermic area (as: Xinjiang), utilize dry hot weather condition summer, manually ted the cement of seasoning, its water content is generally less than 13%, both can be used as the raw material of dry production cement.Because raw material do not need to make liquid in producing, so the energy that the cement produced than wet method of the dry method cement that becomes to produce consumes lacks.The cement that the present invention produces need not limit the factory site in cement mill, does not need the cement mill of picture wet production yet, and the specific equipment and the facility of special conveying filter mud is set.Cement of the present invention is with all inequality with Cement Production technology, proportioning raw materials and the technology batching rate value of sugar mill mud wet production, and the utilization of waste material that has solved sugar mill mud has improved environment.
Description of drawings: Fig. 1 is the graphic representation that the filter mud volume influences f-CaO in the grog when being warming up to 1350 ℃; Fig. 2 is that the filter mud volume is to the graphic representation of f-CaO influence in the grog when being warming up to 1400 ℃, and Fig. 3 is the respective grinding process schema, and Fig. 4 is the combined grinding process flow sheet.
Embodiment: material chemical component of the present invention sees Table 1.Table 1 material chemical component table (%)
Material name Loss on ignition ???SiO 2 ????Fe 2O 3 ????Al 2O 3 ????CaO ????MgO
Wingdale ????41.81 ???2.53 ????0.30 ????0.48 ????53.85 ????0.54
Shale ????10.17 ???55.79 ????4.80 ????13.10 ????8.49 ????2.93
Iron powder ????0.19 ???11.29 ????74.96 ????3.91 ????3.93 ????5.75
Filter mud ????49.92 ???2.40 ????0.48 ????1.41 ????41.01 ????1.93
The present invention takes following measure control to produce to filter mud in process of production:
1. adopt the dry filter mud of the method for tedding, filter mud moisture is reduced to below 13%.
2. take powdery, particulate materials to stack layer by layer, shine evenly the shop, when getting material, cuts by section
Get (horizontal shop is perpendicular gets), guarantee that the kiln material is even, raw ingredients is stable.
3. feed proportioning scheme
Filter mud replacing lime stone volume by different quantities is tested, and filters out the feed proportioning scheme.The feed proportioning table of the filter mud replacing lime stone volume of different quantities sees Table 2.Table 2 feed proportioning table
Test number Filter mud replacing lime stone volume (%) Material proportion (%)
Wingdale Filter mud Shale Iron powder Summation
????K 1 ????0 ????75.86 ????0 ????21.46 ????2.68 ????100
????K 2 ????15 ????65.29 ????11.52 ????20.52 ????2.67 ????100
????K 3 ????20 ????61.70 ????15.43 ????20.20 ????2.67 ????100
????K 4 ????25 ????58.08 ????19.36 ????19.88 ????2.68 ????100
????K 5 ????30 ????54.43 ????23.33 ????19.56 ????2.68 ????100
????K 6 ????35 ????50.78 ????27.35 ????19.20 ????2.67 ????100
????K 7 ????40 ????47.05 ????31.37 ????18.89 ????2.69 ????100
????K 8 ????45 ????43.33 ????35.45 ????18.61 ????2.61 ????100
????K 9 ????50 ????39.58 ????39.58 ????18.29 ????2.54 ????100
????K 10 ????55 ????35.70 ????43.65 ????18.17 ????2.48 ????100
????K 11 ????60 ????31.89 ????47.84 ????17.87 ????2.40 ????100
????K 12 ????65 ????28.04 ????52.08 ????17.55 ????2.33 ????100
4. test method
Prepare test water mud raw material by table 2 proportioning, after adding water balling-up oven dry, put into the high-temperature electric resistance furnace that is warming up to 800 ℃ in advance, be warming up to 1350 ℃, 1400 ℃ again, be incubated 15 minutes respectively, take out chilling, weigh the quality of burning till quality to identify grog free lime content, and the burn-ability of examination filter mud preparation raw material, comparative test result sees Table 3 and Fig. 1, Fig. 2.Table 3 filter mud raw material, grog chemical ingredients and rate value table
Specimen coding Raw material Grog ??????????f-CaO ??KH ???n ???p
Loss SiO 2 Fe 2O 3 Al 2O 3 CaO MgO SiO 2 Fe 2O 3 Al 2O 3 CaO MgO 1400℃ 1350℃
??K 1 ??34.12 ??14.19 ??3.39 ??3.22 ??42.56 ??1.16 ??22.21 ??5.23 ??5.04 ??64.94 ??1.48 ??1.50 ??4.32 ??0.88 ??2.16 ??0.96
??K 2 ??35.04 ??13.79 ??3.43 ??3.27 ??41.96 ??1.35 ??22.04 ??5.35 ??2.08 ??64.72 ??1.55 ??1.24 ??3.52 ??0.88 ??2.11 ??0.95
??K 3 ??35.49 ??13.58 ??3.48 ??3.28 ??41.85 ??1.28 ??21.89 ??5.45 ??5.18 ??64.45 ??1.69 ??1.45 ??2.97 ??0.88 ??2.06 ??0.95
??K 4 ??35.94 ??13.37 ??3.51 ??3.30 ??41.60 ??1.35 ??21.78 ??5.56 ??5.17 ??64.27 ??1.72 ??1.37 ??3.40 ??0.88 ??2.03 ??0.93
??K 5 ??36.39 ??13.58 ??3.56 ??3.33 ??40.29 ??1.20 ??21.73 ??5.62 ??5.15 ??64.03 ??1.89 ??1.46 ??3.65 ??0.88 ??2.02 ??0.92
??K 6 ??36.77 ??13.32 ??3.51 ??3.15 ??39.65 ??1.26 ??21.68 ??5.80 ??5.15 ??63.73 ??2.04 ??1.88 ??3.72 ??0.88 ??1.98 ??0.89
??K 7 ??37.23 ??13.18 ??3.50 ??3.25 ??39.51 ??1.50 ??21.35 ??5.76 ??4.96 ??63.94 ??2.04 ??2.36 ??4.02 ??0.90 ??1.99 ??0.86
??K 8 ??37.67 ??13.18 ??3.38 ??3.18 ??39.61 ??1.38 ??21.14 ??5.98 ??5.00 ??63.48 ??2.04 ??3.44 ??3.76 ??0.90 ??1.93 ??0.84
??K 9 ??38.13 ??13.07 ??3.39 ??3.03 ??39.07 ??1.32 ??21.14 ??5.74 ??4.93 ??64.08 ??2.22 ??2.37 ??6.61 ??0.91 ??1.98 ??0.86
??K 10 ??38.74 ??12.57 ??3.32 ??3.02 ??38.72 ??1.38 ??20.82 ??5.74 ??4.89 ??63.99 ??2.41 ??3.62 ??7.16 ??0.92 ??1.96 ??0.85
??K 11 ??38.99 ??12.69 ??2.99 ??3.09 ??38.41 ??1.57 ??21.14 ??5.74 ??4.93 ??63.73 ??2.28 ??3.12 ??7.45 ??0.91 ??1.98 ??0.86
??K 12 ??39.50 ??12.20 ??3.17 ??3.76 ??37.85 ??1.81 ??20.71 ??5.62 ??4.96 ??63.82 ??2.53 ??3.76 ??7.49 ??0.93 ??1.96 ??0.88
Fig. 1 be different volume filter muds 1350 ℃ of calcinings, free calcium oxide change curve in the grog, the free calcium oxide change curve can be divided into two portions as seen from Figure 1: first part's filter mud substitutes amount 0~45% o'clock, is the one section curve that slowly descends.It is 0% o'clock that filter mud substitutes amount, f-CaO content 4.31%; Filter mud substituted amount at 15~45% o'clock, and f-CaO content all is lower than 4.31%, minimum f-CaO content 3.40 (filter mud replace lime stone 20%).Second section is that filter mud substitutes amount more than 45%, is one section slow upcurve in anxious earlier back, and f-CaO content increases with filter mud replace lime stone amount and raises, from above situation, and filter mud replace lime stone amount 15~45%, the cement slurry burn-ability improves.Filter mud replace lime stone amount is more than 50%, and the cement slurry burn-ability reduces.
Fig. 2 be different volume filter muds 1400 ℃ of calcinings, free calcium oxide change curve in the grog.As seen from Figure 2, the free calcium oxide change curve can roughly be divided into two portions: first part's grog f-CaO content of 15~45% o'clock of filter mud replace lime stone amount is all less than 1.46%, and the grog f-CaO content of not mixing filter mud is 1.50%, and obviously the burn-ability of the former raw material is better than latter burnability of raw material.Second section be filter mud replace lime stone amount more than 45%, grog f-CaO substitutes amount with filter mud to be increased obviously, influence degree is remarkable.Illustrate that the cement slurry burn-ability obviously reduced when filter mud replace lime stone amount was above above 45%.
In sum, filter mud replace lime stone amount is in 15~45% scopes, and the burn-ability of raw material is better; Filter mud replace lime stone amount can obviously be improved the burn-ability of raw material in 45%.
Therefore, the proportioning raw materials (weight percent content) of filter mud replacing lime stone volume 15~45% of the present invention is: Wingdale 43.33-65.29, filter mud 11.52-35.45, shale 18.61-20.52, iron powder 2.61-2.67.
Replace the proportioning raw materials of 15~45% Wingdale volumes and the data of table 3 according to filter mud, determine grog rate value Scheme Choice " high saturation ratio, low silica modulus, low aluminium-oxygen modulus ", be Wingdale saturation factor KH=0.90 ± 0.02, aluminium-oxygen modulus p=0.95 ± 0.1, silicate ratio n=2.0 ± 0.1
5. mix the technical process of filter mud raw grinding
Can select grinding and two kinds of technologies of combined grinding respectively.
Respective grinding process schema shown in Figure 3 and combined grinding process flow sheet shown in Figure 4.
Experiment showed, that these two kinds of technical process all are feasible.The two compares, and the respective grinding process flow process is preferable, not only avoid filter mud secondary pollution environment, and it is effective to cut down the consumption of energy, but investment is bigger, complex management.And the practical situation of combined grinding technology comparison operators Heshui mud industry have crucial meaning to the filter mud wide popularization and application.

Claims (2)

1. with the cement of sugar refining filter mud via dry process production, its proportioning raw materials (weight percentage) is: Wingdale 43.33-65.29, filter mud 11.52-35.45, shale 18.61-20.52, iron powder 2.61-2.67; Its grog rate value is: Wingdale saturation factor KH=0.90 ± 0.02, aluminium-oxygen modulus p=0.95 ± 0.1, silicate ratio n=2.0 ± 0.1.
2. the cement of producing with sugar refining filter mud via dry process according to claim 1, it is characterized in that: optimum material proportion (weight percentage) is: Wingdale 54.5, filter mud 23.3, shale 19.6, iron powder 2.7.
CNB011326050A 2001-08-28 2001-08-28 Cement produced with sugar refining filter mud via dry process Expired - Fee Related CN1227178C (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586255A (en) * 2013-10-23 2014-02-19 华南理工大学 Method for treating carbonic acid method sugarhouse filter mud by using boiler flue gas
CN106809866A (en) * 2017-02-10 2017-06-09 山东星光生物科技有限公司 A kind of sugar mill mud high-efficiency comprehensive utilization method and device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586255A (en) * 2013-10-23 2014-02-19 华南理工大学 Method for treating carbonic acid method sugarhouse filter mud by using boiler flue gas
CN103586255B (en) * 2013-10-23 2016-06-22 华南理工大学 The method utilizing boiler flue gas disposal carbonatation process sugar refinery filter mud
CN106809866A (en) * 2017-02-10 2017-06-09 山东星光生物科技有限公司 A kind of sugar mill mud high-efficiency comprehensive utilization method and device

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