CN103813989B - The dewatering of mud - Google Patents
The dewatering of mud Download PDFInfo
- Publication number
- CN103813989B CN103813989B CN201280043423.0A CN201280043423A CN103813989B CN 103813989 B CN103813989 B CN 103813989B CN 201280043423 A CN201280043423 A CN 201280043423A CN 103813989 B CN103813989 B CN 103813989B
- Authority
- CN
- China
- Prior art keywords
- mud
- water ratio
- dewatering
- slaked lime
- flow valuve
- 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.)
- Active
Links
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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides a kind of method improved easily operability such as the conveyings demonstrating thixotropic mud.Method of the present invention is the dewatering of the mud with thixotropy region, comprises and utilizes pressure filtration dewatering to water ratio to be less than the operation of the water ratio that flow valuve is lower-most point in this mud.
Description
Technical field
The present invention relates to the dewatering of the mud of a kind of trade waste containing micro mists such as clay, sand, the dusts of catching in wet type control of dust operation and mud etc.In addition, the invention still further relates to the method for this mud for raw material process industry raw material.
Background technology
In general, from the viewpoint of cutting down waste and then saving global environment from damage, it is very important for the mud recyclings such as the trade waste containing micro mists such as the dusts of catching in clay, sand, wet type control of dust operation and mud or recovery being used as industrial raw material.But, in the middle of these mud, demonstrate thixotropic mud.In this situation, the viscosity due to mud is passed in time and raises, and is therefore difficult to carry out the operations such as conveying, obstacle when becoming recycling or reclaim and use as industrial raw material.
Therefore, following content is described: at slurry type shield construction method in Japanese Unexamined Patent Publication 2000-160152 publication (patent documentation 1), mud water type propelling construction method, and and used in the muddy water tunnelling construction methods such as the soil pressure formula shield construction of mud-water conveying mode, there is following problem, namely, when muddy water is left standstill for a long time, the viscosity of muddy water obviously raises, in order to again return to low-viscosity muddy water, need long-time and powerful whipping appts, be directed to this, by adding oligophosphate separately in excavation muddy water, or with specific ratio and with adding oligophosphate and specific unsaturated carboxylic acid polymer salt, oligophosphate in muddy water is maintained certain concentration, thus can be economical and reliably prevent the rising of muddy water viscosity.In addition, also describe the reduction of the classification performance that can also prevent native sand separating device, particularly separating centrifuge thus, effectively can prevent the rising of muddy water proportion, and can digging efficiency be improved.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2000-160152 publication
Summary of the invention
Invent problem to be solved
But, the method that Japanese Unexamined Patent Publication 2000-160152 publication (patent documentation 1) is recorded suppresses thixotropic method of cutting muddy water, therefore complexity is controlled, and price is high because adding additive, and then, due to be additive effect according to the difference of the object materials such as the pH of cutting muddy water different chemical treatment methods, therefore lack ubiquity.
The present invention creates in view of the foregoing, its object is to, and provides a kind of and utilizes the method improved easily with the method diverse ways adding additive for operability such as the conveyings demonstrating thixotropic mud.
For the scheme of dealing with problems
The present inventor conducts in-depth research repeatedly in order to solve the problem, and found that, even demonstrate thixotropic mud, also can exist because of water ratio and manifests thixotropic region and do not manifest thixotropic region.In addition, be conceived to the flow valuve of the index of the mobility as mud and the relation of water ratio, found that, the water ratio along with mud reduces flow valuve and diminishes gradually, and when water ratio is reduced to certain level, current flow valuve will sharply raise.According to the result of study of the present inventor, being less than flow valuve at water ratio is that in the region of the water ratio of lower-most point, mud disappearance thixotropy becomes filter cake shape, can stably carry.The present invention is found to be basis with this and completes, and is determined by following content.
In an aspect, be a kind of method, it is the dewatering of the mud with thixotropy region in the present invention, comprises and utilizes pressure filtration dewatering to water ratio to be less than the operation of the water ratio that flow valuve is lower-most point in this mud.
The dewatering with the mud in thixotropy region of the present invention in one embodiment, when the water ratio by flow valuve being lower-most point is set to a(%) time, the water content x (%) of the mud after dehydration meets following formula: a-5≤x < a.
The dewatering with the mud in thixotropy region of the present invention in another embodiment, utilizes pressure filter to carry out pressure filtration.
The dewatering with the mud in thixotropy region of the present invention in another embodiment again, from the end of the dehydration procedure by described pressure filtration on dehydration procedure once early stage, implement the matting of filter cloth.
The dewatering with the mud in thixotropy region of the present invention is in another embodiment again, and described mud contains slaked lime.
The dewatering with the mud in thixotropy region of the present invention is in another embodiment again, and described slaked lime is the slaked lime in the dust trapped in the wet type control of dust operation of furnace of calcium carbide.
The dewatering with the mud in thixotropy region of the present invention is in another embodiment again, and described mud contains hydrotalcite and/or carbon component.
The dewatering with the mud in thixotropy region of the present invention is in another embodiment again, and described mud contains the hydrotalcite of 1 ~ 10 quality % and/or the carbon component of 1 ~ 15 quality %.
The present invention in one aspect of the method, is the filter cake that the dewatering by implementing above-mentioned record obtains.
The present invention in again in another, is the manufacture method of the industrial raw material comprising the dewatering implementing above-mentioned record.
In one embodiment, described mud contains slaked lime to the manufacture method of industrial raw material of the present invention, and described industrial raw material is the raw material of grog.
The present invention in again in another, is a kind of manufacture method of grog, comprises: after the operation that the prepared using worm conveyor of the grog through will above-mentioned manufacture method be utilized to obtain is carried, implement the operation to firing furnace supply.
In one embodiment, grog is calcium sulphoaluminate CSA(Calciumsulfoaluminate to the manufacture method of grog of the present invention) or the grog of cement.
The effect of invention
According to the present invention, even if do not add additive in mud, also can improve easily for operability such as the conveyings demonstrating thixotropic mud.Thus, the mud of the trade waste containing micro mists such as clay, sand, the dusts of catching in wet type control of dust operation being difficult to before this to recycle or reclaim and using as industrial raw material and mud etc. can be effectively utilized.
Accompanying drawing explanation
Fig. 1 illustrates the example of the schema of the method for the slurry dewatering of slaked lime utilizing the present invention will to trap in the wet type control of dust operation containing furnace of calcium carbide.
Fig. 2 illustrates an example of the schema of the method for being carried to sinter leaching stove by the slaked lime filter cake obtained through dewatering of the present invention.
Fig. 3 is the figure that the water ratio of slaked lime and the relation of flow valuve trapped in the wet type control of dust operation of furnace of calcium carbide is shown.
Fig. 4 illustrates the secondary water ratio of slaked lime of generation and the figure of the relation of flow valuve in carbide-feed generator.
Embodiment
The present invention is to have the mud in thixotropy region for handling object.Even if when participating in thixotropic composition manifested containing clay or the dust that produces from carbide of calcium manufacture electric furnace etc. in mud, in general under the state that water ratio is high, also can not show thixotropy, show thixotropy gradually along with water ratio reduces.Whether have thixotropic judgement strictly owing to being difficult to carry out certain material, therefore in the present invention, region flow valuve reduced along with the reduction of water ratio and the region that flow valuve is below 150mm are defined as in " thixotropy region ".
As the concrete example of mud with thixotropy region, do not limit, but the mud of the trade waste can enumerated containing micro mists such as the dusts of catching in clay, sand, wet type control of dust operation and mud etc.As typical case can enumerate utilize wet type control of dust operation to catch the dust produced from carbide of calcium manufacture electric furnace and the mud obtained (hereinafter referred to as " electric furnace generation mud ".）。
Electric furnace generation mud has hydrotalcite in one embodiment, and typically containing 1 ~ 10 quality %, more typically containing 2 ~ 8 quality %, it is believed to be helpful in thixotropic manifesting.In addition, this mud contains carbon component with the form of graphite in one embodiment, and typically containing 1 ~ 15 quality %, more typically containing 5 ~ 15 quality %, it is believed to be helpful in thixotropic manifesting.
From carbide of calcium manufacture electric furnace, produce the dust containing slaked lime as by product in large quantities, but owing to demonstrating thixotropy, so there is no utilize purposes, generally go out of use.Thus, the Application way finding out slaked lime contained in dust is important.If this slaked lime is used as cement raw material, then the lime raw material of Wingdale as an alternative can use, the CO from cement kiln can be reduced
2generation, effectiveness is larger, but owing to having thixotropy, therefore when with conveying machine conveyings such as the chapelet in cement raw material manufacturing process or worm conveyors, the torque of rotating machinery can be caused to raise, stopped by the conveying caused to the attachment on transfer roller, thus stablize conveying with being difficult to not produce the fault of conveying machine, it uses in a large number and is hindered.According to the present invention, the method for the operability such as conveying improved easily for the mud as above with thixotropy region can be provided.
The present inventor is for the mud with thixotropy region, find after being conceived to the relation of flow valuve and water ratio, flow valuve diminishes gradually along with the water ratio reduction of mud, is the region of below 150mm in flow valuve, mud has been bulk and integraty is high, applies very large load to conveying machine.But find when water ratio is reduced to certain level, current flow valuve will sharply raise.And known, be less than by making water ratio the water ratio that flow valuve is lower-most point, thus make thixotropy disappear and become filter cake shape, can stably carry.In addition, consider from the measuring principle of flow valuve, the lower limit of flow valuve is 100mm.
Therefore, in an embodiment of the invention, implement the mud with thixotropy region to utilize pressure filtration dewatering to water ratio to be less than the operation of the water ratio that flow valuve is lower-most point.Flow valuve is the index of plastic fluidity, and flow test (physical test method of JISR5201 cement) can be utilized to obtain.But, can unnecessarily consumed energy owing to exceedingly dewatering, economical not, therefore when the water ratio by flow valuve being lower-most point is set to a(%) time, preferably dewater in the mode making the water content x of the mud after dehydration (%) meet a-5≤x < a, more preferably dewater in the mode meeting a-2≤x < a.Water ratio is with quality percentage definition (the water ratio test method of JISA1125 aggregate and the test method based on the surface water rate of water ratio) obtained divided by the solids component of non-decrement by the water of decrement evaporation when carrying out drying and dehydrating to mud at 105 DEG C.
Dehydration adopts pressure filtration to be because utilize other the dewatering such as vacuum filtration, filtration under diminished pressure, heat drying to be difficult to make water ratio reduce fully.As the method for pressure filtration, the pressure filter be preferably as follows: discharge filter plate in filtration chamber, clamps filter cloth betwixt, is pressed into mud wherein, carries out filtering, dewatering.In addition, due to by from the end of the dehydration procedure by pressure filtration on dehydration procedure once early stage, implement the cleaning of filter cloth, the blocking of filter cloth can be prevented, therefore can carry out the process continued.In addition, become blocking because the one-tenth being attached to the mud on filter cloth analyzes, therefore preferred that filter cloth is dry after the cleaning of filter cloth, but in water impregnating and keep moisture state.As this kind of method, such as, can enumerate the method recorded in Japanese Unexamined Patent Publication 2001-25612 publication.
The thixotropy of the mud utilizing dewatering to dewater of the present invention disappears, and becomes filter cake shape, and conveying is also easy to, and can be used as various industrial raw material according to containing composition.Such as, the filter cake containing slaked lime electric furnace generation slurry dewatering obtained can be used as the manufacture raw material of grog.So-called grog is a part of melting (partly melting state) of being burnt till by the crushed material containing one or more mineral to its composition, by integral sintered for block and obtain, its kind is not particularly limited, but exemplarily, calcium sulphoaluminate CSA(Calciumsulfoaluminate can be enumerated) and the grog such as cement.Calcium sulphoaluminate typically has CaO, CaSO as chemical constitution
4, and Al
2o
3, contain CaO, CaSO as essential mineral
4, 3CaO3Al
2o
3caSO
4the resultant of reaction matter of (being referred to as Yeelimite or Hauyne, is the chemical substance defined by CASNo.12005-25-3).
In Fig. 1, schematically show a series of operation before utilizing pressure filter to dewater the dust of discharging from carbide of calcium manufacture electric furnace.For from the waste gas containing dust of carbide of calcium manufacture with electric furnace 101, the wet dust collection devices 102 such as spray tower, whirlwind dust scrubber, Venturi dust scrubber and theisen washer are utilized from waste gas, to isolate dust, as mud reclamation.The sedimentation in subsider 103 of this mud, after then carrying out delay stirring with thickener 104 to it, supplies to pressure filter 105 and accepts dehydration, becoming slaked lime filter cake.The filtrate discharged from pressure filter 105 can recycle repeatedly in subsider 103.
The filter cake utilizing dewatering of the present invention to obtain is made powder by fragmentation, such as, worm conveyor or chapelet etc. can be utilized to carry out dry type conveying.In Fig. 2, schematically show operation example when dropping in sinter leaching stove after the conveying of slaked lime filter cake dry type.If slaked lime filter cake is dropped in slaked lime feed hopper 201, be then temporarily stored in niter ash can 204 through worm conveyor 202 and chapelet 203.Thereafter, utilize worm conveyor 205 to supply to raw material pulverizing drying machine 206, be ground into the size of regulation here, after drying, drop in the firing furnaces 207 such as cement kiln.As long as the condition of firing furnace suitably regulates according to the kind of grog, but such as when burning till CSA, burn till at the temperature of about 1100 ~ 1300 DEG C.
Embodiment
Below, embodiments of the invention are described, but they are illustrative object, and are not intended to limit the present invention.
Below, the origin of the slaked lime mud used in embodiment and comparative example is shown.
(1) lime composition
Slaked lime 1: be the dust of catching in the wet type control of dust operation of furnace of calcium carbide.
Slaked lime 2: be the by-product slaked lime produced in the manufacturing process by the acetylene gas of carbide slag method.
The composition of these slaked limes shown in table 1 and median size.In table, chemical composition utilizes the chemical analysis of JISR5202(cement) measure.But fixed carbon utilizes JISM8812(coal class and coke class-Industry Analysis Method) measure, CO
2jISR9011 is utilized to measure.Water ratio utilizes infrared moisture instrument (kett Inc. model FD610) to measure according to JISA1125.Igloss is burning decrement, utilizes the burning decrement test method of soil (domain engineering meeting benchmark) JGS0221:2009 to measure.Carbon form utilizes X-ray diffraction to measure.Hydrotalcite uses X-ray diffraction Rietveld method " SIROQUANTVersion2.5 " (Sietronics Inc.) to utilize powder x-ray diffraction quantitative according to diffracted intensity.Median size is set to the particle size distribution measuring method of the laser diffraction and scattering method utilizing JISR1629(by fine ceramics raw material) 50% diameter of the cumulative percent of volume reference that measures.In table, F-C refers to fixed carbon.
[table 1-1]
[table 1-2]
< is for the test > of slaked lime 1
The mud of slaked lime 1 be have studied to the relation of the water ratio after utilizing pressure filter to dewater and flow valuve, consequently, obtain the result shown in Fig. 3.According to Fig. 3, along with water ratio reduces at leisure from 169%, flow valuve reduce, but when lower than 67% time, flow valuve raises sharp.Have rated the transporting (current value of worm conveyor) of the mud of the slaked lime 1 under each water ratio, consequently, in the region that flow valuve reduces along with the reduction of water ratio, demonstrate before flow valuve arrives lower-most point from below 150mm more than 20A, and water ratio lower than the water ratio as lower-most point 67% time, the current value of worm conveyor reduces sharp, and transporting significantly improves.
Continue to implement press filtration 1 week under each condition using the mud of slaked lime 1 to record in table 2.
※ 1: slaked lime 1+ Wingdale represent relative to mud 100 mass parts of slaked lime 1 add mesh be Wingdale 10 mass parts under the sieve of 2mm, make apparent solid component concentration be about 2 times to the input in pressure filter.
※ 2: for the form of pressure filter, A is Ishigaki Co., Ltd.'s system " ISDNC-R type filter plate outside dimension (lengthwise and the grow crosswise) × number of chambers: 1500 × 25Lars filter/full room opening and closing simultaneously, the independent filter cloth in full room are advanced ", after dehydration procedure terminates, filter cloth is washed, in filter chamber, inject water during having before next dehydration procedure starts and filter cloth be immersed in the function of water.B is M Co., Ltd. akino system " MAFS filter plate outside dimension (lengthwise and the grow crosswise) × number of chambers: 100 × 36 automatic pressure filters ", does not have and in filter chamber, injects water and function filter cloth being immersed in water.
※ 4: in experiment numbers 6, recycle drying machine " Satake Inc. twin axle many objects drying machine SRA " after dewatering, utilize double-shaft spiral transfer roller to extrude the slaked lime filter cake after dehydration, in screw rod side plate cover, supply steam, surface temperature be set to 200 [DEG C] and carry out drying.
※ 5: in conveying operation, utilize tipper to load in hopper by slaked lime, utilizes screw feeder to carry slaked lime.Now, in experiment numbers 4 ~ 6, by mixing water ratio low slaked lime, the water ratio of filter cake is reduced.
※ 6: by both can not having the overload of the motor of screw shaft in conveying operation, the situation of also not carrying with having equipment failure was set to zero, the situation equipment failure such as large for the current overload variation of the motor of screw shaft in conveying operation, torque is large, cause current anomaly, axle damaged can not being carried out carrying during 1 week is set to ×.
The result of operation after 1 week is shown in Table 2.Result now shown in the experimental example that cannot carry.
In experiment numbers 1, until dewater constantly during off-test to water ratio be less than the water ratio that flow valuve is lower-most point.Conveying in conveying operation is also good.
In experiment numbers 2, although when operating beginning, dehydration to water ratio is less than the water ratio that flow valuve is lower-most point, carry also good, but in filter chamber, inject water and pressure filter filter cloth being immersed in the function of water owing to employing not have, therefore the performance of pressure filter worsens at leisure, raises and enter thixotropy region along with water ratio, becomes and cannot carry in test way.
In experiment numbers 3, although increase the solid component concentration before dehydration relative to experiment numbers 2, but in the same manner as experiment numbers 2, the performance of pressure filter worsens at leisure, raises and enter thixotropy region along with water ratio, becomes and cannot carry in test way.
In experiment numbers 4, reduce the water ratio of filter cake by mixing the slaked lime of low-water-content in conveying operation, different from experiment numbers 2 in this.Because the water ratio of entirety itself is low, it is no problem therefore can to expect in conveying, but in the same manner as experiment numbers 2, the performance of pressure filter worsens at leisure, and water ratio uprises and enters thixotropy region, becomes and cannot carry in test way.Although be not intended to limit the present invention according to theory, but can think, along with the dehydration power of pressure filter reduces, slaked lime 1 enters thixotropy region and has become the high block of integraty, even if other the slaked lime therefore adding water ratio low also cannot mix well, its impact cannot be got rid of fully.
In experiment numbers 5, by raising the solid component concentration before dehydration, then mix the slaked lime of low-water-content to reduce the water ratio of filter cake in conveying operation, different from experiment numbers 2 in this.Because the water ratio of entirety itself is low, it is no problem therefore can to expect in conveying, but in the same manner as experiment numbers 2, the performance of pressure filter worsens at leisure, and water ratio uprises and enters thixotropy region, becomes and cannot carry in test way.
In experiment numbers 6, relative to experiment numbers 5, carry out operation dry after dewatering, but do not reduce fully due to the water ratio of slaked lime 1, therefore still along with the performance degradation of pressure filter, enter thixotropy region, become and cannot carry in test way.
[table 2]
< is for the test > of slaked lime 2
The mud of slaked lime 2 be have studied to the relation of water ratio when utilizing pressure filter to dewater and flow valuve, consequently, obtain the result shown in Fig. 4.According to Fig. 4, along with water ratio reduces at leisure from 80%, flow valuve reduces, and be that near 40%, flow valuve touches the bottom (about 161mm) at water ratio, flow valuve raises at leisure.The mud of the slaked lime 2 under each water ratio does not all demonstrate thixotropy under which kind of water ratio.In addition, regardless of water ratio, the conveying by screw feeder can be carried out.
The explanation of symbol
101 carbide of calcium manufacture electric furnaces
102 wet dust collection devices
103 subsiders
104 thickeners
105 pressure filter
201 slaked lime feed hopper
202 worm conveyors
203 chapelets
204 niter ash cans
205 worm conveyors
206 raw material pulverizing drying machines
207 firing furnaces
Claims (12)
1. a method, it has the region that reduces along with the reduction of water ratio as flow valuve and flow valuve is the dewatering of the mud in the thixotropy region in the region of below 150mm, comprise this mud being utilized pressure filtration and dewatering to water ratio and be less than the operation of the water ratio that flow valuve is lower-most point
Wherein, when the water ratio by flow valuve being lower-most point is set to a (%), the water content x (%) of the mud after dehydration meets following formula: a-5≤x < a.
2. method according to claim 1, wherein,
Pressure filter is utilized to carry out pressure filtration.
3. method according to claim 1 and 2, wherein,
From at the end of the dehydration procedure by described pressure filtration on once dehydration procedure before during, implement the matting of filter cloth.
4. method according to claim 1 and 2, wherein,
Described mud contains slaked lime.
5. method according to claim 4, wherein,
Described slaked lime is the slaked lime in the dust trapped in the wet type control of dust operation of furnace of calcium carbide.
6. method according to claim 1 and 2, wherein,
Described mud contains hydrotalcite and/or carbon component.
7. method according to claim 6, wherein,
Described mud contains the hydrotalcite of 1 ~ 10 quality % and/or the carbon component of 1 ~ 15 quality %.
8. a filter cake, is obtained by the dewatering implemented the claims according to any one of 1 ~ 7.
9. a manufacture method for industrial raw material, comprises the dewatering implemented the claims according to any one of 1 ~ 7.
10. manufacture method according to claim 9, wherein,
Described mud contains slaked lime, and described industrial raw material is the raw material of grog.
The manufacture method of 11. 1 kinds of grogs, comprising: after the operation that the prepared using worm conveyor of the grog through will the method described in claim 10 be utilized to obtain is carried, and implements the operation to firing furnace supply.
The manufacture method of 12. grogs according to claim 11, wherein,
Grog is the grog of calcium sulphoaluminate CSA or cement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011230041 | 2011-10-19 | ||
| JP2011-230041 | 2011-10-19 | ||
| PCT/JP2012/065138 WO2013057981A1 (en) | 2011-10-19 | 2012-06-13 | Process for dewatering slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103813989A CN103813989A (en) | 2014-05-21 |
| CN103813989B true CN103813989B (en) | 2016-01-20 |
Family
ID=48140641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280043423.0A Active CN103813989B (en) | 2011-10-19 | 2012-06-13 | The dewatering of mud |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5913348B2 (en) |
| CN (1) | CN103813989B (en) |
| WO (1) | WO2013057981A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005758B (en) * | 2019-12-27 | 2021-03-05 | 胡威 | Hydraulic power generation heating water filtering device and method for mine filling pipe |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001172060A (en) * | 1999-12-14 | 2001-06-26 | Kinki Kankyo Kosan Kk | Composition for cement raw material |
| JP2006212569A (en) * | 2005-02-04 | 2006-08-17 | Nippon Steel Corp | Slurry concentrating method |
| CN1887765A (en) * | 2006-07-13 | 2007-01-03 | 新疆建材设计研究院（有限公司） | Dry cement clinker producing process with carbide residue to replace limy material |
| JP2007051022A (en) * | 2005-08-18 | 2007-03-01 | Denki Kagaku Kogyo Kk | Hydrotalcite-like compound, its manufacture method, and anion remover |
| CN1966443A (en) * | 2006-11-12 | 2007-05-23 | 新疆建材设计研究院（有限公司） | Cement chamotte production method of calcium carbide 100% substituting for natural calcic material and decomposed out of kiln |
| CN101041561A (en) * | 2006-11-17 | 2007-09-26 | 尹小林 | New technique for producing cement by using carbide mud residue ingredient of shaft kiln |
| CN101172790A (en) * | 2007-10-26 | 2008-05-07 | 尹小林 | Novel technique for producing concrete by using hygroscopic state sewage sludge waste slag B grade mixture material |
| CN101481225A (en) * | 2009-01-31 | 2009-07-15 | 合肥水泥研究设计院 | Predrying method for carbide slag |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS605643B2 (en) * | 1975-11-14 | 1985-02-13 | 電気化学工業株式会社 | Production method of hot metal desulfurization agent |
| US5153546A (en) * | 1991-06-03 | 1992-10-06 | General Electric Company | Open MRI magnet |
-
2012
- 2012-06-13 CN CN201280043423.0A patent/CN103813989B/en active Active
- 2012-06-13 WO PCT/JP2012/065138 patent/WO2013057981A1/en active Application Filing
- 2012-06-13 JP JP2013539552A patent/JP5913348B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001172060A (en) * | 1999-12-14 | 2001-06-26 | Kinki Kankyo Kosan Kk | Composition for cement raw material |
| JP2006212569A (en) * | 2005-02-04 | 2006-08-17 | Nippon Steel Corp | Slurry concentrating method |
| JP2007051022A (en) * | 2005-08-18 | 2007-03-01 | Denki Kagaku Kogyo Kk | Hydrotalcite-like compound, its manufacture method, and anion remover |
| CN1887765A (en) * | 2006-07-13 | 2007-01-03 | 新疆建材设计研究院（有限公司） | Dry cement clinker producing process with carbide residue to replace limy material |
| CN1966443A (en) * | 2006-11-12 | 2007-05-23 | 新疆建材设计研究院（有限公司） | Cement chamotte production method of calcium carbide 100% substituting for natural calcic material and decomposed out of kiln |
| CN101041561A (en) * | 2006-11-17 | 2007-09-26 | 尹小林 | New technique for producing cement by using carbide mud residue ingredient of shaft kiln |
| CN101172790A (en) * | 2007-10-26 | 2008-05-07 | 尹小林 | Novel technique for producing concrete by using hygroscopic state sewage sludge waste slag B grade mixture material |
| CN101481225A (en) * | 2009-01-31 | 2009-07-15 | 合肥水泥研究设计院 | Predrying method for carbide slag |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013057981A1 (en) | 2015-04-02 |
| CN103813989A (en) | 2014-05-21 |
| JP5913348B2 (en) | 2016-04-27 |
| WO2013057981A1 (en) | 2013-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102381877B (en) | Method for brickmaking by comprehensive utilization of desiccated sludge | |
| CN101633547B (en) | Resource processing method of petroleum-containing sludge in petroleum , comprehensive processing method of petroleum-containing sludge in petroleum and petrochemical and resource recycling method | |
| CN101514027B (en) | Manufacturing technique for preparing calcium oxide by using acetylene sludge | |
| CN107497831A (en) | A kind of its recovery method as resource of domestic waste sorting and charing integrated treatment | |
| US10611657B2 (en) | Method and system for preparing fuel gas by utilizing organic waste with high water content | |
| CN104973597A (en) | Production method of active carbon | |
| CN105000557A (en) | Recycling production method for agricultural wastes | |
| CN108723074A (en) | A method of stabilizing restoration of soil polluted by heavy metal using sludge base charcoal ash | |
| CN109384400B (en) | Carbide slag treatment process and system | |
| CN108502884A (en) | A method of producing the grey mix and convert calcium lime powder pressure ball molding of calcium carbide furnace of calcium carbide purification | |
| CN103813989B (en) | The dewatering of mud | |
| CN105036126A (en) | Device for recycling agricultural wastes | |
| JP6391142B2 (en) | Method for producing phosphate fertilizer | |
| JP2013053061A (en) | Phosphate fertilizer, and method for producing the same | |
| JP2008126185A (en) | Calcined object and its manufacturing method | |
| CN101573295B (en) | Dust material heating process | |
| CN102674877A (en) | Method for producing high-strength light-weight ceramsite by using salty mud | |
| CN105036128A (en) | Recycle production method for woodcraft wood | |
| RU2299868C2 (en) | Additive mixture for production of cement clinker and use thereof | |
| CN206545004U (en) | The system that a kind of coupling prepares purified gas and acetylene | |
| CN101775503A (en) | Method for directly recovering coke from kiln slag of rotary kiln and device | |
| CN207330764U (en) | A kind of calcium carbide slag disposal system | |
| CN115231785B (en) | Device and method for recycling ferric oxide by utilizing red mud carbon fixation and dealkalization | |
| JP3242674B2 (en) | Mud and mud waste treatment equipment | |
| CN1249353A (en) | Method for mfg. agglomerate for blast furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Tokyo, Japan, Japan Applicant after: DENKI KAGAKU KOGYO KK Address before: Tokyo, Japan, Japan Applicant before: Denki Kagaku Kogyo K. K. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |