CN103394500A - Alkaline residue processing method using slurry - Google Patents
Alkaline residue processing method using slurry Download PDFInfo
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- CN103394500A CN103394500A CN201310335221XA CN201310335221A CN103394500A CN 103394500 A CN103394500 A CN 103394500A CN 201310335221X A CN201310335221X A CN 201310335221XA CN 201310335221 A CN201310335221 A CN 201310335221A CN 103394500 A CN103394500 A CN 103394500A
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- Prior art keywords
- slurry
- alkaline residue
- cofferdam
- water
- pump
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- 239000002002 slurry Substances 0.000 title claims abstract description 54
- 238000003672 processing method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000010881 fly ash Substances 0.000 claims abstract description 12
- 239000011268 mixed slurry Substances 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims abstract description 5
- 239000004927 clay Substances 0.000 claims description 13
- 230000008595 infiltration Effects 0.000 claims description 8
- 238000001764 infiltration Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 8
- 239000002956 ash Substances 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000009621 Solvay process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an alkaline residue processing method using slurry, and the processing method comprises the following steps: the first step, a cofferdam is constructed, and an annular water seepage ditch is dug around the cofferdam; the second step, a water gun or a water cannon is arranged beside an alkaline residue pool, and water is injected into the alkaline residue pool to dilute alkaline residue in the alkaline residue pool into alkaline residue slurry; the third step, the alkaline residue slurry in the alkaline residue pool is conveyed into a mixer through a mud slurry pump; the fourth step, fly ash is put into a ash pool and is diluted with water into slurry, the slurry is conveyed into the mixer through a residue slurry pump to mix with the alkaline residue slurry, and the mixed slurry is conveyed into the cofferdam of the first step through a booster pump; and the fifth step, water content of the slurry in the cofferdam is reduced to design requirements of engineering soils through use of a strong drainage method, and the water discharged from the cofferdam into the annular water seepage ditch is pumped back to the ash pool or/and a mud pool for cycle use. The engineering soils prepared according to the alkaline residue processing method using the slurry, can be used for general-engineering backfill soil, building-foundation-engineering backfill soil, soft foundation treatment engineering soil and highway construction engineering soil.
Description
Technical field
The present invention relates to alkaline residue processing method, especially relate to the method for utilizing slurry to process alkaline residue.
Background technology
Alkaline residue is the waste residue that discharges in the ammonia-soda process alkali producing process.China's ammonia-soda process alkaline every year is 6,000,000 tons of left and right.Due to ammonia-soda process soda ash production technology, 1 ton of soda ash of every production will produce 0.3-0.5 ton alkaline residue.For solving a large amount of alkaline residue emission problems, traditional method is to take cofferdam or/and dig pond discharging alkaline residue, and this not only occupies a large amount of soils, and environment is caused severe contamination.How utilizing alkaline residue to make it to turn waste into wealth is the problem that those skilled in the art study always.
About disclosing a kind of alkaline residue that utilizes, report mixes method as engineering earth with flyash or clay, the method is dug out alkaline residue in the alkaline residue pond by excavator, utilize vehicle to be carried to behind appointed place alkaline residue is shakeout airing to make it to dehydrate, then sprinkle flyash or the clay mix and blend is made engineering earth.Said method has been opened up a kind of approach that effectively utilizes alkaline residue.But the weak point of its existence is: 1, because the alkaline residue of bottom in alkaline residue pond or cofferdam is not done and is in colloidal state throughout the year, so excavator is merely able to along the alkaline residue pond or the edge, cofferdam carries out digging operation, this not only brings potential safety hazard to digging operation, and the alkaline residue of due to the excavation head, mentioning is in colloidal, make and excavate the minimizing of head loading amount, greatly reduce operating efficiency.2, the vehicle transport alkaline residue easily causes scattering of alkaline residue on the way, brings pollution for environment on the way.3, the alkaline residue that is carried to appointed place in shakeouing the airing process and with flyash or clay mixed process in, because the effect of wind-force causes secondary pollution to local environment again.
Summary of the invention
The object of the invention is to provide a kind of method of utilizing slurry to process alkaline residue.
For achieving the above object, the present invention takes following technical proposals:
The method of utilizing slurry to process alkaline residue of the present invention, comprise the steps:
The first step, construction cofferdam, dig annular infiltration ditch around described cofferdam;
Second step, at the alkaline residue pool side, set up hydraulic giant or water cannon, by hydraulic giant or water cannon, to water filling in the alkaline residue pond, alkaline residue in pond is diluted to slurry;
The 3rd goes on foot, by slush pump and pipeline, alkaline residue slurry in the alkaline residue pond is transported in blender;
The 4th step, a, flyash is placed in ashpit and is diluted with water into slurry, by slag stock pump and pipeline, be transported in the described blender of second step and mix with the alkaline residue slurry, by booster pump and pipeline, mixed slurry is transported in the described cofferdam of the first step; The weight ratio of described alkaline residue and flyash is 1～9 ︰ 9～1;
Or: b, clay is placed in mud sump and is diluted with water into slurry, by slush pump and pipeline, be transported in the described blender of second step and mix with the alkaline residue slurry, by booster pump and pipeline, mixed slurry is transported in the described cofferdam of the first step; The weight ratio of described alkaline residue and clay is 1～9 ︰ 9～1;
The 5th step, the slurry in cofferdam is adopted forced-ventilated water method, make the slurry moisture in cofferdam be reduced to the engineering earth designing requirement; The water that is drained in cofferdam in described annular infiltration ditch is withdrawn in the 4th step ashpit or/and recycle in mud sump by water pump.
Described cofferdam is fenestral fabric, precipitate step by step to reach the slurry that makes in cofferdam, the clear water in final stage grid cofferdam with water pump be withdrawn into described the 4th the step in ashpit or/and recycle in mud sump.
The invention has the advantages that major embodiment is:
1, the alkaline residue in the alkaline residue pond being made slurry mixes with flyash slurry or clay slurry by pipeline in blender, then be transported in cofferdam and dewater by booster pump, pipeline, whole production process material is in the slurry state and adopts pipeline to carry, and therefore can not cause secondary pollution to environment.
2, from the preparation of alkaline residue slurry, flyash slurry or clay slurry, be mixed into and be delivered to whole production process in cofferdam and, continuously without fracture, greatly improved the production efficiency of engineering earth preparation, reduced production cost.
3 when taking alkaline residue and clay to be mixed with engineering earth, and the clay of building cofferdam namely can be used as to mix uses clay, has not only saved clay resource but also saved the cost of outsourcing Tu Yuan.
The backfill that can be used for common engineering according to the engineering earth of the present invention preparation is built engineering earth with the backfill of soil, building foundation engineering with native, treatment of soft foundation engineering earth and highway.
The specific embodiment
Embodiment 1:
The method of utilizing slurry to process alkaline residue of the present invention, comprise the steps:
The first step, construction fenestral fabric cofferdam, dig annular infiltration ditch around described cofferdam;
Second step, at the alkaline residue pool side, set up hydraulic giant, by hydraulic giant, to water filling in the alkaline residue pond, alkaline residue in pond is diluted to slurry;
The 3rd goes on foot, by slush pump and pipeline, alkaline residue slurry in the alkaline residue pond is transported in blender;
The 4th goes on foot, flyash is placed in ashpit and is diluted with water into slurry, by slag stock pump and pipeline, is transported in the described blender of second step and mixes with the alkaline residue slurry, by booster pump and pipeline, mixed slurry is transported in the described cofferdam of the first step; The weight ratio of described alkaline residue and flyash requires to select between 1～9 ︰ 9～1 according to the engineering purposes.
The 5th step, the slurry in cofferdam is adopted forced-ventilated water method, make the slurry moisture in cofferdam be reduced to the engineering earth designing requirement; Clear water in final stage grid cofferdam and the water that is drained in described annular infiltration ditch are withdrawn in the 4th step ashpit or/and recycle in mud sump by water pump.
Embodiment 2:
The method of utilizing slurry to process alkaline residue of the present invention, comprise the steps:
The first step, construction fenestral fabric cofferdam, dig annular infiltration ditch around described cofferdam;
Second step, at the alkaline residue pool side, set up water cannon, by water cannon, to water filling in the alkaline residue pond, alkaline residue in pond is diluted to slurry;
The 3rd goes on foot, by slush pump and pipeline, alkaline residue slurry in the alkaline residue pond is transported in blender;
The 4th goes on foot, clay is placed in mud sump and is diluted with water into slurry, by slush pump and pipeline, is transported in the described blender of second step and mixes with the alkaline residue slurry, by booster pump and pipeline, mixed slurry is transported in the described cofferdam of the first step; The weight ratio of described alkaline residue and clay requires to select between 1～9 ︰ 9～1 according to engineering earth;
The 5th step, the slurry in cofferdam is adopted forced-ventilated water method, make the slurry moisture in cofferdam be reduced to the engineering earth designing requirement; Clear water in final stage grid cofferdam and the water that is drained in described annular infiltration ditch are withdrawn in the 4th step ashpit or/and recycle in mud sump by water pump.
Claims (2)
1. a method of utilizing slurry to process alkaline residue, is characterized in that: comprise the steps:
The first step, construction cofferdam, dig annular infiltration ditch around described cofferdam;
Second step, at the alkaline residue pool side, set up hydraulic giant or water cannon, by hydraulic giant or water cannon, to water filling in the alkaline residue pond, alkaline residue in pond is diluted to slurry;
The 3rd goes on foot, by slush pump and pipeline, alkaline residue slurry in the alkaline residue pond is transported in blender;
The 4th step, a, flyash is placed in ashpit and is diluted with water into slurry, by slag stock pump and pipeline, be transported in the described blender of second step and mix with the alkaline residue slurry, by booster pump and pipeline, mixed slurry is transported in the described cofferdam of the first step; The weight ratio of described alkaline residue and flyash is 1～9 ︰ 9～1;
Or: b, clay is placed in mud sump and is diluted with water into slurry, by slush pump and pipeline, be transported in the described blender of second step and mix with the alkaline residue slurry, by booster pump and pipeline, mixed slurry is transported in the described cofferdam of the first step; The weight ratio of described alkaline residue and clay is 1～9 ︰ 9～1;
The 5th step, the slurry in cofferdam is adopted forced-ventilated water method, make the slurry moisture in cofferdam be reduced to the engineering earth designing requirement; The water that is drained in cofferdam in described annular infiltration ditch is withdrawn in the 4th step ashpit or/and recycle in mud sump by water pump.
2. utilize according to claim 1 slurry to process the method for alkaline residue, it is characterized in that: described cofferdam is fenestral fabric, precipitate step by step to reach the slurry that makes in cofferdam, the clear water in final stage grid cofferdam with water pump be withdrawn into described the 4th the step in ashpit or/and recycle in mud sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310335221XA CN103394500A (en) | 2013-08-05 | 2013-08-05 | Alkaline residue processing method using slurry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310335221XA CN103394500A (en) | 2013-08-05 | 2013-08-05 | Alkaline residue processing method using slurry |
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| CN103394500A true CN103394500A (en) | 2013-11-20 |
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| CN201310335221XA Pending CN103394500A (en) | 2013-08-05 | 2013-08-05 | Alkaline residue processing method using slurry |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728424A (en) * | 2015-11-26 | 2016-07-06 | 张强 | Ring landfill dam construction device and method for solid waste solidification storage |
| CN109482610A (en) * | 2018-10-24 | 2019-03-19 | 湖北云应矿业技术开发有限公司 | A kind of alkaline residue backfill disposing technique |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591567A1 (en) * | 1992-10-05 | 1994-04-13 | Hermann Dr. Kollmann | Old refuse dump and method for the treatment of old refuse dumps |
| US6860989B2 (en) * | 2001-06-20 | 2005-03-01 | C. F. Bean L.L.C. | Make-up water re-circulation in slurry processing unit |
| CN1814918A (en) * | 2006-03-02 | 2006-08-09 | 顾建华 | Earthwork construction method |
| CN101239259A (en) * | 2008-03-14 | 2008-08-13 | 上海市政工程设计研究总院 | Sludge return sedimentation pool improved from pipe chute sedimentation pool and improving method thereby |
| CN101314532A (en) * | 2007-05-29 | 2008-12-03 | 上海海马海洋生物科技开发有限公司 | Industry method of oil backfilling by manufacturing alkaline residue after the entire cleaning of the alkaline residue pool |
| JP4373734B2 (en) * | 2003-08-19 | 2009-11-25 | 日清製粉株式会社 | Method for neutralizing alkaline soil or sludge |
| CN102107936A (en) * | 2011-01-14 | 2011-06-29 | 南京大学 | Technique for treating remaining water of desilted sediment in Lake Tai |
-
2013
- 2013-08-05 CN CN201310335221XA patent/CN103394500A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591567A1 (en) * | 1992-10-05 | 1994-04-13 | Hermann Dr. Kollmann | Old refuse dump and method for the treatment of old refuse dumps |
| US6860989B2 (en) * | 2001-06-20 | 2005-03-01 | C. F. Bean L.L.C. | Make-up water re-circulation in slurry processing unit |
| JP4373734B2 (en) * | 2003-08-19 | 2009-11-25 | 日清製粉株式会社 | Method for neutralizing alkaline soil or sludge |
| CN1814918A (en) * | 2006-03-02 | 2006-08-09 | 顾建华 | Earthwork construction method |
| CN101314532A (en) * | 2007-05-29 | 2008-12-03 | 上海海马海洋生物科技开发有限公司 | Industry method of oil backfilling by manufacturing alkaline residue after the entire cleaning of the alkaline residue pool |
| CN101239259A (en) * | 2008-03-14 | 2008-08-13 | 上海市政工程设计研究总院 | Sludge return sedimentation pool improved from pipe chute sedimentation pool and improving method thereby |
| CN102107936A (en) * | 2011-01-14 | 2011-06-29 | 南京大学 | Technique for treating remaining water of desilted sediment in Lake Tai |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728424A (en) * | 2015-11-26 | 2016-07-06 | 张强 | Ring landfill dam construction device and method for solid waste solidification storage |
| CN109482610A (en) * | 2018-10-24 | 2019-03-19 | 湖北云应矿业技术开发有限公司 | A kind of alkaline residue backfill disposing technique |
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Application publication date: 20131120 |