CN105217978B - A kind of resource recycles the device and technique of production slag cement - Google Patents
A kind of resource recycles the device and technique of production slag cement Download PDFInfo
- Publication number
- CN105217978B CN105217978B CN201410259222.5A CN201410259222A CN105217978B CN 105217978 B CN105217978 B CN 105217978B CN 201410259222 A CN201410259222 A CN 201410259222A CN 105217978 B CN105217978 B CN 105217978B
- Authority
- CN
- China
- Prior art keywords
- slag
- cement
- heavy metal
- gypsum
- technique
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002893 slag Substances 0.000 title claims abstract description 133
- 239000004568 cement Substances 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 239000011398 Portland cement Substances 0.000 claims abstract description 23
- 239000010440 gypsum Substances 0.000 claims abstract description 22
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 230000002572 peristaltic effect Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- 239000011669 selenium Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052785 arsenic Inorganic materials 0.000 claims description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052716 thallium Inorganic materials 0.000 claims description 3
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000007885 magnetic separation Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 19
- 238000012360 testing method Methods 0.000 description 12
- 238000002386 leaching Methods 0.000 description 10
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 238000009616 inductively coupled plasma Methods 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000003469 silicate cement Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- CIARZKRWRLKYBP-UHFFFAOYSA-N [Pb]=O.[O-2].[Fe+2] Chemical compound [Pb]=O.[O-2].[Fe+2] CIARZKRWRLKYBP-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- -1 plating Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses device and technique that a kind of resource recycles production slag cement.It is, by the slag after adsorbing waste water, to mix in proportion with portland cement, gypsum, stirring is made slag cement in being put into mixer.Preparing process is using mechanical mixed method, slag micro powder accounting≤55% by weight during preparation, gypsum accounting≤5%, cement accounting >=40%.The present invention also makes full use of the steel slag for being adsorbed with heavy metal ion while using slag processing heavy metal wastewater thereby, as the raw material of manufacture of cement.Largely stacking is difficult to dispose to solve slag discarded object again while heavy metal pollution of water body is solved the problems, such as；Not only the pollution to environment can have been reduced but also slag can be made to obtain secondary utilization, turned waste into wealth, greatly reduce the cost of manufacture of cement manufacture, be truly realized the purpose of " treatment of wastes with processes of wastes against one another, resource is recycled ".
Description
Technical field
Technical field is utilized the invention belongs to solid waste resource recovery, is related to a kind of resource to recycle production slag water
The device and technique of mud.
Background technology
With continuing to develop for China's steel industry, the yield of slag is also continuously increased.China's slag yield in 2001
About 16,000,000 tons, by 2006, slag yield reached 50,280,000 tons, and steel slag utilization rate is only 10% or so.It is so a large amount of
If slag directly fill or be poured over around steel mill, a large amount of land resources are not only taken up, also pollute the environment.To improve waste residue
Utilization rate and recycle value, the manufacturing enterprise of recent domestic extremely focuses on the research of waste residue reutilization technology, actively
Utilization is big, added value is high waste residue utilization new way is explored to promote economic society and harmonious development.Meanwhile, with me
The industries such as the fast development of state's economy, non-ferrous metal, plating, chemical industry, printing and dyeing, mining industry, will discharge substantial amounts of containing a huge sum of money every year
Belong to the waste water of ion, after it enters environment, it is impossible to degraded by Institute of Micro-biology, can only constantly accumulate for a long time, eventually flow to food
The biology on chain top, the especially mankind, all kinds of disease serious life security that threaten us for thus triggering.
The country has been reported display and using slag as sorbent treatment heavy metal ion-containing waste water, but can all concentrate on and grind
Study carefully the optimization of the operations parameter of slag processing heavy metal wastewater thereby, such as：The optimum dosage of slag, optimum grain-diameter, it is best suitable for
Reaction time, mixing speed etc..Also some reports are also all the mechanism of the heavy metal ion in discussion slag goes water removal, and
Correlation be there are no to the research in terms of the slag recovery for the treatment of heavy metal wastewater thereby and disposal options.
Slag is heavy metal ion adsorbed in slag surface, final slag and a huge sum of money during heavy metal wastewater thereby is processed
Category is removed in the form of precipitating, and the effective recovery and disposal to precipitated product are the important steps of handling process, and this is also
A current unsolved problem.
The content of the invention
It is an object of the invention to solve the problems, such as that the slag after Adsorption of Heavy Metals is largely stacked, is difficult to dispose, there is provided
One kind turns waste into wealth steel slag, and resource recycles the device and technique of production slag cement.
Technical scheme is specifically included：
A kind of resource recycles the device of production slag cement, and described device includes aqua storage tank (1), peristaltic pump (2), inhales
Attached column (3), sludge pump (4), drying box (5) and mixer (6), said apparatus are sequentially connected.
Regulating valve is installed between the aqua storage tank (1) and peristaltic pump (2), for adjusting heavy metal wastewater thereby 7 in aqua storage tank (1)
Flow velocity；Peristaltic pump (2) is connected with adsorption column (3) bottom of towe, and regulating valve is installed in junction, for adjusting the heavy metal wastewater thereby for flowing through
Flow velocity；Regulating valve is installed between adsorption column (3) and sludge pump (4), the flow velocity for adjusting the slag after being adsorbed through waste water；It is described
Adsorption column (3) tower top connecting pipe, pipeline exit installs regulating valve, the flow velocity for adjusting the waste water 9 after absorption.
A kind of resource recycles the technique of production slag cement, is the slag after being adsorbed through waste water, with silicate cement
Mud, gypsum mix in proportion, and stirring is made slag cement in being put into mixer；
The slag is the slag micro powder for being adsorbed with heavy metal ion,
The slag cement is formulated by slag micro powder, portland cement, gypsum by following mass percent is compound：
Slag micro powder：5%-55%
Portland cement：40%-90%
Gypsum：2%-5%.
Preferred scheme：
Slag micro powder：10%
Portland cement：85%
Gypsum：5%.
The slag micro powder for being adsorbed with heavy metal ion, heavy metal ion includes lead (Pd), mercury (Hg), cadmium (Cd), chromium
(Cr), arsenic (As), copper (Cu), silver-colored (Ag), zinc (Zn), iron (Fe), nickel (Ni), cobalt (Co), vanadium (V), thallium (Tl), manganese (Mn), tungsten
(W), molybdenum (Mo), golden (Au), tin (Sn), selenium (Se) metal ion.
Above-mentioned technique, specifically includes following steps：
Heavy metal wastewater thereby (7) in aqua storage tank (1) is flowed into equipped with slag (8) through peristaltic pump (2) from adsorption column bottom of towe
In adsorption column (3), the waste water (9) after absorption is discharged by tower top, and the slag micro powder for being adsorbed with heavy metal ion is passed through through sludge pump (4)
Drying box (5) is dried, and is mixed in proportion with portland cement, gypsum again after drying, and is put into mixer (6) through mechanical agitation system
Into slag cement (10).
Described slag is the powder of converter slag that grinding is made after iron removal by magnetic separation is processed.
The slag micro powder of heavy metal ion is adsorbed with through drying 1h-8h in drying box 30 DEG C -120 DEG C.
Principle explanation：
As adsorbent when heavy metal wastewater thereby is processed, initial reaction stage can produce flocculent deposit to slag, with entering for reaction
OK, flocky precipitate is gradually deposited in the micropore on slag surface, and solution becomes limpid, and the slag after adsorption reaction still has
Good separation of solid and liquid, after dried process, the precipitate metal hydroxides produced in course of reaction are in the form of the oxide
Slag surface is gathered in, and is difficult dissolution.Because slag and clinker all have preferable gelling property, in the aquation of cement
During, heavy metal may be combined into the salt of calcium with OH- or silicate, adsorb on specific surface area C-S-H particles higher,
Into in crystal structure, and it is less soluble go out.
Compared with prior art, its remarkable advantage is the present invention：
(1) present invention is the secondary utilization to slag, first with slag as water treatment agent, the heavy metal gone in water removal from
Son.The mineralogical composition similar to clinker for recycling slag to have in itself, the slag after Adsorption of Heavy Metals ion is made
Slag cement.
(2) the slag cement the compression strength 3 days >=17Mpa, 28 days >=35Mpa that are made and the slag cement heavy metal being made
Dissolution concentration is less than heavy metal ion dissolution concentration specified in national standard.
(3) slag is difficult to dispose after solving the problems, such as treatment heavy metal wastewater thereby, the pollution to environment is eliminated, while greatly
The big cost for reducing manufacture of cement manufacture, has saved the energy, therefore, there is the present invention good environmental benefit to be imitated with economical
Benefit.
Brief description of the drawings
Fig. 1 is the process route view that resource recycles production slag cement.
Fig. 2 is the particle size distribution figure of the slag for being adsorbed with heavy metal ion lead.
Fig. 3 is the slag cement aquation rate of heat release figure of 3 days being made in embodiment 2 and 3.
Fig. 4 is the slag cement aquation heat release spirogram of 3 days being made in embodiment 2 and 3.
Specific embodiment
A kind of resource recycles the technique of production slag cement, is the slag after being adsorbed through waste water, with silicate cement
Mud, gypsum mix in proportion, and stirring is made slag cement in being put into mixer；
The slag is the slag micro powder for being adsorbed with heavy metal ion,
The slag cement is formulated by slag micro powder, portland cement, gypsum by following mass percent is compound：
Slag micro powder：5%-55%
Portland cement：40%-90%
Gypsum：2%-5%.
Preferred scheme：
Slag micro powder：10%
Portland cement：85%
Gypsum：5%.
The slag micro powder for being adsorbed with heavy metal ion, heavy metal ion includes lead (Pd), mercury (Hg), cadmium (Cd), chromium
(Cr), arsenic (As), copper (Cu), silver-colored (Ag), zinc (Zn), iron (Fe), nickel (Ni), cobalt (Co), vanadium (V), thallium (Tl), manganese (Mn), tungsten
(W), molybdenum (Mo), golden (Au), tin (Sn), selenium (Se) metal ion.
The present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1：
As shown in figure 1, a kind of resource recycles the device of production slag cement, described device includes aqua storage tank 1, wriggles
Pump 2, adsorption column 3, sludge pump 4, drying box 5 and mixer 6, said apparatus are sequentially connected.The aqua storage tank 1 and peristaltic pump 2 it
Between regulating valve is installed, the flow velocity for adjusting heavy metal wastewater thereby 7 in aqua storage tank 1；Peristaltic pump 2 is connected with the bottom of towe of adsorption column 3, connection
Regulating valve is installed at place, for adjusting the heavy metal wastewater thereby flow velocity for flowing through；Regulating valve is installed between adsorption column 3 and sludge pump 4, is used for
Adjust the flow velocity of the slag after being adsorbed through waste water；The tower top connecting pipe of the adsorption column 3, pipeline exit installs regulating valve, uses
The flow velocity of the waste water 9 after absorption is adjusted.
A kind of resource recycles the technique of production slag cement, specifically includes following steps：By the huge sum of money in aqua storage tank 1
During category waste water 7 flows into the adsorption column 3 equipped with slag 8 through peristaltic pump 2 from adsorption column bottom of towe, the waste water 9 after absorption is discharged by tower top,
The slag micro powder for being adsorbed with heavy metal ion is dried through sludge pump 4 through drying box 5, is pressed with portland cement, gypsum again after drying
Ratio mixes, and is put into mixer 6 and is made slag cement 10 through mechanical agitation.
By taking lead (II) ion (Pb (II)) as an example, table 1 is the chemical composition of the slag for being adsorbed with heavy metal ion lead.
Table 1 is adsorbed with the chemical composition (%) of the slag of heavy metal ion lead
| Loss | CaO | MgO | PbO | |||
| Loss on ignition | Calcium oxide | Silica | Aluminum oxide | Magnesia | Iron oxide | Lead oxide |
| 0.24 | 39.7 | 30.4 | 14.58 | 7.02 | 2.76 | 1.78 |
Counted as 100% with preparing sample 450g, take slag micro powder 5% after adsorpting lead ion, take the silicon of Jiangsu factory production
Acid salt cement 90%, takes the natural gypsum 5%.These three components are put into mixer and are well mixed through mechanical agitation, that is, prepared
Into slag portland cement.By GB175-2007 common portland cement national standards, the slag cement to being made carries out performance
Test, test result is shown in Table 2.
The slag cement sample testing result of table 2
The slag cement that will be prepared is made quiet slurry test block, after standard curing 28d, sample is taken out, and particle diameter is crushed to small
In carrying out dissolution experiment after 5mm.The concentration of lead is measured using Inductively coupled plasma optical emission spectrometer (ICP).Determine knot
Fruit shows that the leaching concentration of lead is 0.068mg/L in the deionized water that pH is 3, the lead in the deionized water that pH is neutral
Leaching concentration is 0.008mg/L, the concentration limit of lead ion specified in respectively less than GB8978-1996.
Embodiment 2：
A kind of resource recycles the device and technique of production slag cement with embodiment 1.
Counted as 100% with preparing sample 450g, take slag micro powder 10% after adsorpting lead ion, take the silicon of Jiangsu factory production
Acid salt cement 85%, takes the natural gypsum 5%.These three components are put into mixer and are well mixed through mechanical agitation, that is, prepared
Into slag portland cement.By GB175-2007 common portland cement national standards, the slag cement to being made carries out performance
Test, test result is shown in Table 3.
The slag cement sample testing result of table 3
The slag cement that will be prepared is made quiet slurry test block, after standard curing 28d, sample is taken out, and particle diameter is crushed to small
In carrying out dissolution experiment after 5mm.The concentration of lead is measured using Inductively coupled plasma optical emission spectrometer (ICP).Determine knot
Fruit shows that the leaching concentration of lead is 0.098mg/L in the deionized water that pH is 3, the lead in the deionized water that pH is neutral
Leaching concentration is 0.013mg/L, the concentration limit of lead ion specified in respectively less than GB8978-1996.
Embodiment 3：
A kind of resource recycles the device and technique of production slag cement with embodiment 1.
Counted as 100% with preparing sample 450g, take slag micro powder 38% after adsorpting lead ion；Take the silicon of Jiangsu factory production
Acid salt cement 60%, takes the natural gypsum 2%.These three components are put into mixer and are well mixed through mechanical agitation, that is, prepared
Into slag portland cement.By GB175-2007 common portland cement national standards, the slag cement to being made carries out performance
Test, test result is shown in Table 4.
The slag cement sample testing result of table 4
The slag cement that will be prepared is made quiet slurry test block, after standard curing 28d, sample is taken out, and particle diameter is crushed to small
In carrying out leaching experiment after 5mm.The concentration of lead is measured using Inductively coupled plasma optical emission spectrometer (ICP).Determine knot
Fruit shows that the leaching concentration of lead is 0.297mg/L in the deionized water that pH is 3, the lead in the deionized water that pH is neutral
Leaching concentration is 0.196mg/L, the concentration limit of lead ion specified in respectively less than GB8978-1996.
Embodiment 4：
A kind of resource recycles the device and technique of production slag cement with embodiment 1.
Counted as 100% with preparing sample 450g, take slag micro powder 55% after adsorpting lead ion；Take the silicon of Jiangsu factory production
Acid salt cement 40%, takes the natural gypsum 5%.These three components are put into mixer and are well mixed through mechanical agitation, that is, prepared
Into slag portland cement.By GB175-2007 common portland cement national standards, the slag cement to being made carries out performance
Test, test result is shown in Table 5.
The slag cement sample testing result of table 5
The slag cement that will be prepared is made quiet slurry test block, after standard curing 28d, sample is taken out, and particle diameter is crushed to small
In carrying out leaching experiment after 5mm.The concentration of lead is measured using Inductively coupled plasma optical emission spectrometer (ICP).Determine knot
Fruit shows that the leaching concentration of lead is 0.402mg/L in the deionized water that pH is 3, the lead in the deionized water that pH is neutral
Leaching concentration is 0.283mg/L, the concentration limit of lead ion specified in respectively less than GB8978-1996.
As can be seen from Figure 2：The size distribution of slag of heavy metal ion lead is adsorbed between 0.5-100 μm.Fig. 3 is
The hydration heat rate diagram of hydrated cementitious different time in embodiment 2 and 3, it can be seen that：Doping is adsorbed with heavy metal slag
The hydration heat speed peak of the cement of cement and undoped p slag illustrates to be adsorbed with the slag of heavy metal simultaneously all between 10-15h
Postpone without result in hydrated cementitious.Fig. 4 is the hydration heat spirogram of hydrated cementitious different time in embodiment 2 and 3, can be seen
Go out：Doping is adsorbed with the cement of the hydrated cementitious thermal discharge less than undoped p slag of heavy metal slag, illustrates the water of doping slag
Mud can significantly reduce the hydration heat amount of cement, can be used to a large amount of productions.
Claims (6)
1. the technique that a kind of resource recycles production slag cement, it is characterised in that be the slag after being adsorbed through waste water, with
Portland cement, gypsum mix in proportion, and stirring is made slag cement in being put into mixer；
The slag is the slag micro powder for being adsorbed with heavy metal ion,
The slag cement is formulated by slag micro powder, portland cement, gypsum by following mass percent is compound：
Slag micro powder：5%-55%
Portland cement：40%-90%
Gypsum：2%-5%.
2. it is according to claim 1 production slag cement technique, it is characterised in that
The slag cement is formulated by slag micro powder, portland cement, gypsum by following mass percent is compound：
Slag micro powder：10%
Portland cement：85%
Gypsum：5%.
3. according to claim 1 production slag cement technique, it is characterised in that it is described to be adsorbed with heavy metal ion
Slag micro powder, heavy metal ion includes lead (Pd), mercury (Hg), cadmium (Cd), chromium (Cr), arsenic (As), copper (Cu), silver-colored (Ag), zinc
(Zn), iron (Fe), nickel (Ni), cobalt (Co), vanadium（V）, thallium (Tl), manganese (Mn), tungsten (W), molybdenum (Mo), golden (Au), tin (Sn), selenium
(Se) metal ion.
4. it is according to claim 1 production slag cement technique, it is characterised in that specifically include following steps：
By aqua storage tank（1）In heavy metal wastewater thereby（7）Through peristaltic pump（2）Flowed into from adsorption column bottom of towe and slag is housed（8）Absorption
Post（3）In, the waste water after absorption（9）Discharged by tower top, be adsorbed with the slag micro powder of heavy metal ion through sludge pump（4）Through drying
Case（5）Dry, mix in proportion with portland cement, gypsum again after drying, be put into mixer（6）It is middle to be made steel through mechanical agitation
Slag cement（10）.
5. according to claim 1 production slag cement technique, it is characterised in that described slag is by magnetic separation
After iron treatment, the powder of converter slag that grinding is made.
6. according to claim 1 production slag cement technique, it is characterised in that be adsorbed with the steel of heavy metal ion
Slag micro mist in drying box 30 DEG C -120 DEG C through drying 1h-8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259222.5A CN105217978B (en) | 2014-06-11 | 2014-06-11 | A kind of resource recycles the device and technique of production slag cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259222.5A CN105217978B (en) | 2014-06-11 | 2014-06-11 | A kind of resource recycles the device and technique of production slag cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105217978A CN105217978A (en) | 2016-01-06 |
| CN105217978B true CN105217978B (en) | 2017-06-20 |
Family
ID=54987330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410259222.5A Expired - Fee Related CN105217978B (en) | 2014-06-11 | 2014-06-11 | A kind of resource recycles the device and technique of production slag cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105217978B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948304A (en) * | 2016-05-02 | 2016-09-21 | 北京工业大学 | Direct solidification processing method for arsenic wastewater |
| CN106430479A (en) * | 2016-09-19 | 2017-02-22 | 上海中冶环境工程科技有限公司 | Application of electric furnace slag in preparation of nickel-containing sewage treating agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4597169B2 (en) * | 2007-07-04 | 2010-12-15 | 株式会社トクヤマ | Wastewater treatment method containing heavy metals |
| CN102627419A (en) * | 2012-04-18 | 2012-08-08 | 上海海笠新型建材发展有限公司 | 52.5-grade slag portland cement and preparation method thereof |
| CN103508507A (en) * | 2012-06-29 | 2014-01-15 | 南京理工大学 | Method for removing metal ions in water by utilizing magnetically-separated steel slag tailings |
-
2014
- 2014-06-11 CN CN201410259222.5A patent/CN105217978B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4597169B2 (en) * | 2007-07-04 | 2010-12-15 | 株式会社トクヤマ | Wastewater treatment method containing heavy metals |
| CN102627419A (en) * | 2012-04-18 | 2012-08-08 | 上海海笠新型建材发展有限公司 | 52.5-grade slag portland cement and preparation method thereof |
| CN103508507A (en) * | 2012-06-29 | 2014-01-15 | 南京理工大学 | Method for removing metal ions in water by utilizing magnetically-separated steel slag tailings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105217978A (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| He et al. | A critical review on approaches for electrolytic manganese residue treatment and disposal technology: Reduction, pretreatment, and reuse | |
| Chen et al. | Pollution control and metal resource recovery for acid mine drainage | |
| CN106076261B (en) | A kind of adsorbent for heavy metal and preparation method and application | |
| CN102730885A (en) | Efficient flocculent precipitate purification method for polymetallic ore benefication wastewater | |
| CN103043844A (en) | Method and device for removing heavy metals in industrial sewage by electromagnetic stirring paddle | |
| CN105217695B (en) | A kind of novel magnetic nano magnetic kind and its methods and applications for handling industrial biochemistry tail water | |
| CN102357424A (en) | Extracting method for copper in slag of copper smelting converter | |
| CN105906133B (en) | A kind of water body purification method and device of strong magnetic separation-magnetic green substance charcoal absorption | |
| CN108178605A (en) | A kind of Preparation method and use of the residual mud baking-free ceramicite of high absorption property water supply plant | |
| CN104190701A (en) | Leaching method for remediation of arsenic polluted soil by using magnetic separation | |
| CN108203760A (en) | A kind of granulation-biological dump leaching process suitable for low-grade oxygen-sulfur mixed copper ore | |
| CN102153217A (en) | Electroplating integrated wastewater treatment method | |
| CN105217978B (en) | A kind of resource recycles the device and technique of production slag cement | |
| CN108947021A (en) | A kind of method of iron-based oxide Solid state fermentation waste acid | |
| CN1718787A (en) | Method of bulk infusion extracting nickel cobalt from low grade red soil nickel ore | |
| CN106915809A (en) | A kind of formula of dense media powder for water process, preparation method and application method | |
| CN114425305B (en) | Mercury adsorption material, preparation method thereof and application thereof in flue gas or solution mercury removal | |
| CN103394699B (en) | The preparation method of nano iron particles and application thereof | |
| CN114804797A (en) | Gold tailing non-sintered light ceramsite and preparation method thereof | |
| CN110759386A (en) | α -Fe taking iron tailings as raw material2O3Preparation method of nano photocatalytic material | |
| CN110171886A (en) | A method of waste acid containing arsenic is disposed using copper ashes step | |
| CN108793371A (en) | A kind of Na2EDTA couples Fe0/Fe3O4The method that composite material removes Cr (VI) in water body | |
| CN101665293B (en) | Fractional precipitation treatment method of wastewater containing nonferrous metal of nickel, lead and cadmium | |
| CN103801270B (en) | For the treatment of the environment-friendly materials and the production technology thereof that contain complicated heavy metal wastewater thereby | |
| CN102816933A (en) | Treatment process method of chrome slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |