CN102491605A - Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame - Google Patents
Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame Download PDFInfo
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- CN102491605A CN102491605A CN201110362736XA CN201110362736A CN102491605A CN 102491605 A CN102491605 A CN 102491605A CN 201110362736X A CN201110362736X A CN 201110362736XA CN 201110362736 A CN201110362736 A CN 201110362736A CN 102491605 A CN102491605 A CN 102491605A
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Abstract
The invention relates to a construction method for carrying out high dehydration on a dredging slurry by using swirling flow, condensation, and plate-and-frame, comprising the following steps: conveying dredging slurry with the concentration of 15-20 % into a crude vibrating screen by a conveyer, and screening out large particles and impurities; then separating the slurry by a large-scale cyclone to obtain a downstream slurry and an upstream slurry, letting the downstream slurry pass through the fine vibrating screen to obtain sediments on the screen and a screened condensed slurry, letting the upstream slurry flow into a coagulation sedimentation basin to obtain a condensed slurry and a supernatant; precipitating the screened condensed slurry and the condensed slurry in a mud storage pond, and then hydrating with a plate-and-frame filter press to obtain a mud cake and filter-press tail water; using the sediments on the screen and the mud cake as engineering filling, and processing the supernatant of the sedimentation basin and the filter-press tail water through a tail water processing system to discharge with a standard level. According to the invention, the water content of the low-concentration dredging slurry is reduced gradedly and rapidly, thus the problems that stockyards of a lot of dredging slurry occupy land and the dredging slurry cannot be used directly are effectively solved.
Description
Technical field
The present invention relates to a kind of height dehydration constructional method of desilting mud, use eddy flow-concentrated-sheet frame to combine, belong to the resource environment field.
Background technology
In recent years, in order to improve inland river navigation and water supply capacity, to improve the water quality in lake, river, many river courses of China, eutrophic lake (like Taihu Lake, Chaohu, Dian Chi etc.) are all being carried out large-scale desilting engineering.At present, the conventional treatment method of domestic desilting mud is mainly the stockyard and deposits, and after depositing, carries out in-situ treatment as the soil utilization, perhaps utilizes as fill material through after the various improvement.
What adopt mostly in China's desilting engineering is strand suction formula mud hydraulic reclamation equipment; Because the restriction of this kind equipment and delivery technology thereof; The concentration of blowing-filling sludge is on the low side, is between the 15-20%, and this has just caused bed mud when removing, to become mud; Volume is increased to original 4-5 doubly, and work output reaches 3000m
3About/h.Therefore, the stockyard of follow-up stacking mud is on a grand scale, and floor space is considerable.At present, all there is the problem in place, stockyard in various degree in the most of desilting engineering of China, serious restriction the progress of desilting engineering.
In order to solve the problem that desilting mud takies the stockyard, can carry out technological improvement from the intermediate treatment of desilting mud, adopt more efficiently, fast dewatering with mud moisture content be reduced to can be directly as the use of banketing
State.Because the most of urban construction of China all needs a large amount of embankment materials, desilting mud can find final outlet through being converted into the embankment material.
Relating to the centrifugation of utilizing hydrocyclone to produce in the silt sorting method of publication number for the patent of invention cutter-suction dredger use of number CN101956412A carries out sorting and concentrates mud; But this patent relates to snagboat adopts husky technology, and is used in this patent that very big difference is arranged separating of mud.
Summary of the invention
The objective of the invention is to take stockyard and stockyard tail water problem of environment pollution caused for the lower concentration dredging mud that solves a large amount of generations.Through enforcement of the present invention, can shorten the treatment time of dredging mud, improve processing efficiency, the dregs after handling and mud cake directly as the use of banketing, have been avoided the occupation of land of desilting stockyard and to the pollution of environment.
The objective of the invention is to realize through following technical scheme.
A kind of eddy flow-concentrated-sheet frame that utilizes carries out the constructional method of desilting mud height dehydration, may further comprise the steps:
(1) utilize desilting equipment that river lakebed mud is carried out desilting;
(2) through transport unit mud is sent into thick vibratory screening apparatus, screen out macrobead and impurity in the mud;
The mud that (3) will pass through scalping is squeezed in the cyclone separator with pressure pump, separates to obtain descending mud and up mud; Particularly, cyclone separator is isolated particle diameter greater than 30 μ m mud particles, is discharged by the spigot of swirler-bottom, and particle diameter is discharged by the riser on swirler-top less than 30 μ m mud particles;
(4) descending mud obtains dregs and sieve back underflow on the lower sieve of water ratio behind meticulous vibratory screening apparatus, and up mud flows into coagulative precipitation tank, obtains concentrating mud and supernatant; The screen cloth mesh of vibratory screening apparatus is 20 μ m;
(5) the concentrated mud of sieve back underflow and coagulative precipitation tank carries out the high density dehydration through the storage basin post precipitation through plate-and-frame filter press, obtains mud cake and press filtration tail water;
(6) mud cake after the dehydration of dregs and plate-and-frame filter press can directly banket as engineering on the sieve, and settling tank supernatant and press filtration tail water is safety dumping up to standard after the tail water treatment system is handled.
The invention has the advantages that:
(1) the concentration 15-20% mud with desilting output directly sieves and processed, not be used in the stockyard and keeps in, and has avoided the stockyard to take up an area of problem;
(2) three kinds of dewatering combinations are used, and have improved the dewatering efficiency of desilting mud, have reduced the slurry dewatering time, and then can accelerate the progress of sludge treatment engineering;
(3) desilting mud can come out big particle diameter sharp separation more than the 30 μ m earlier through cyclone separator, has alleviated the pressure of back processed, can improve the efficient of filter press dehydration;
(4) dregs and the moisture content of the cake that after cyclone separator and plate-and-frame filter press processing, obtain are between the 30%-35%, can be used as the directly outward transport of banketing and using.
(5) settling tank supernatant and press filtration tail water is after the tail water treatment system is handled, can safety dumping up to standard, and the less pollution of tail water to surrounding environment.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Among Fig. 1: 1, dredger; 2,5-20mm vibratory screening apparatus; 3, cyclone separator; 4, descending mud; 5, up mud; 6, the thin vibratory screening apparatus of 20 μ m; 7, sieve back underflow; 8, dregs; 9, coagulative precipitation tank; 10, concentrate mud; 11, supernatant; 12, storage basin; 13, plate-and-frame filter press; 14; Mud cake; 15, press filtration tail water; 16, tail water treatment system; 17, settling tank; 18, quick filtering basin; 19, artificial swamp.
Embodiment
Embodiment
Below combine specific embodiment that the present invention is described further by above-mentioned accompanying drawing again:
Fig. 1 is a process flow sheet of the present invention, and with reference to shown in Figure 1, a kind of eddy flow-concentrated-sheet frame that utilizes carries out the constructional method of desilting mud height dehydration, comprises the following steps:
(1) utilize the desilting equipment on the dredger 1 that the bed mud in one lake, Jiangsu is carried out desilting.The concentration of desilting mud is between the 15-20%.
(2) on dredger, through transport unit desilting mud is sent into the thick vibratory screening apparatus 2 of 5-20mm, macrobead and the impurity in the mud is removed in scalping;
The mud that (3) will pass through scalping is squeezed in the large-size rotational flow separator 3 with pressure pump, obtains particle diameter by the cyclone separator separation and discharges through spigot greater than the descending mud 4 of 30 μ m, and particle diameter is discharged through riser less than the up mud 5 of 30 μ m;
(4) after descending mud is crossed the thin vibratory screening apparatus 6 of 20 μ m, obtain dregs 8 and sieve back underflow 7 on the lower sieve of water ratio.Up mud flows into coagulative precipitation tank 9, obtains concentrating mud 10 and supernatant 11;
(5) sieve back underflow 7 is carried out the high density dehydration with concentrated mud 10 through the storage basin 12 final plate-and-frame filter press 13 that arrive, and obtaining water ratio is the mud cake 14 and press filtration tail water 15 of 30-35%;
(6) dregs 8 can directly banket as engineering with mud cake 14 on the sieve, settling tank supernatant 11 and press filtration tail water 15 safety dumping up to standard after tail water treatment system 16 is handled.
Claims (3)
1. one kind is utilized eddy flow-concentrated-sheet frame to carry out the constructional method of desilting mud height dehydration, may further comprise the steps:
(1) utilize desilting equipment that river lakebed mud is carried out desilting;
(2) through transport unit mud is sent into thick vibratory screening apparatus, large particulate matter and the impurity in the mud is removed in scalping;
The mud that (3) will pass through scalping is squeezed in the cyclone separator with pressure pump, separates to obtain descending mud and up mud;
(4) descending mud obtains dregs and sieve back underflow on the lower sieve of water ratio behind meticulous vibratory screening apparatus, and up mud flows into coagulative precipitation tank, obtains concentrating mud and supernatant;
(5) the concentrated mud of sieve back underflow and coagulative precipitation tank carries out the high density dehydration through the storage basin post precipitation through plate-and-frame filter press, obtains mud cake and press filtration tail water;
(6) mud cake after the dehydration of dregs and plate-and-frame filter press can directly banket as engineering on the sieve, and settling tank supernatant and press filtration tail water is safety dumping up to standard after the tail water treatment system is handled.
2. a kind of eddy flow-concentrated-sheet frame that utilizes described in the claim 1 carries out the constructional method of desilting mud height dehydration; It is characterized in that cyclone separator is isolated particle diameter greater than 30 μ m mud particles in the step (3); Spigot by the swirler-bottom is discharged; Particle diameter is discharged by the riser on swirler-top less than 30 μ m mud particles.
3. a kind of eddy flow-concentrated-sheet frame that utilizes described in the claim 1 carries out the constructional method of desilting mud height dehydration, and the screen cloth mesh that it is characterized in that the vibratory screening apparatus in above-mentioned (4) step is 20 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110362736XA CN102491605A (en) | 2011-11-16 | 2011-11-16 | Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110362736XA CN102491605A (en) | 2011-11-16 | 2011-11-16 | Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame |
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| CN102491605A true CN102491605A (en) | 2012-06-13 |
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| CN201110362736XA Pending CN102491605A (en) | 2011-11-16 | 2011-11-16 | Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232149A (en) * | 2013-04-15 | 2013-08-07 | 天津科技大学 | Environmental protection dredging stockyard sediment original position rapid dehydration system |
| CN103408207A (en) * | 2013-08-26 | 2013-11-27 | 黑旋风工程机械开发有限公司 | Integrated test device and method for dredging, dewatering and drying sludge in river and lake |
| CN103769312A (en) * | 2014-01-09 | 2014-05-07 | 广东华隧建设股份有限公司 | Construction method for processing and recycling slurry shield muck |
| CN103936182A (en) * | 2014-04-23 | 2014-07-23 | 浙江海河环境科技有限公司 | Zero-chemical and zero-discharge treatment method of machine-made sand wastewater |
| CN104291543A (en) * | 2014-10-20 | 2015-01-21 | 贾俊培 | Waste drilling mud non-floor type innocent treatment system and treatment method |
| CN104724893A (en) * | 2015-03-06 | 2015-06-24 | 三川德青科技有限公司 | Dredging and classified dewatering treatment method and system for sludge in urban river box culvert |
| CN103526792B (en) * | 2013-10-18 | 2016-03-30 | 无锡威孚精密机械制造有限责任公司 | Accrete clearing device |
| CN105776807A (en) * | 2016-04-22 | 2016-07-20 | 北京旭日绿色科技有限公司 | Movable rapid on-site dewatering system and method for building mud |
| CN106000599A (en) * | 2016-06-12 | 2016-10-12 | 黄康明 | Harmless zero-emission muck treatment system |
| CN106277670A (en) * | 2016-08-29 | 2017-01-04 | 曹鹏 | A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge |
| CN107473561A (en) * | 2017-10-09 | 2017-12-15 | 安徽佳明环保科技股份有限公司 | A kind of multiple sorting separation decrement anhydration system of mud |
| CN107879571A (en) * | 2017-11-16 | 2018-04-06 | 安徽佳明环保科技股份有限公司 | A kind of sewage water treatment method based on Treatment of Sludge intelligent integral equipment |
| CN108439752A (en) * | 2018-03-06 | 2018-08-24 | 胜利油田森诺胜利工程有限公司 | A kind of silt particle separating and dehydrating integrated oil silt particle reduction device |
| CN109016129A (en) * | 2018-07-02 | 2018-12-18 | 广州市永蓝环保科技有限公司 | A method of processing construction mud |
| CN109879571A (en) * | 2019-03-12 | 2019-06-14 | 中交疏浚技术装备国家工程研究中心有限公司 | Bottom-mud dewatering desiccation optimal control method |
| CN109966802A (en) * | 2019-05-08 | 2019-07-05 | 江苏建院营造股份有限公司 | A kind of new green environment protection mud disposal system |
| CN110156292A (en) * | 2019-05-29 | 2019-08-23 | 中清深利(深圳)科技有限公司 | A kind of slurry dewatering solidifying and resource utilization method |
| CN110668609A (en) * | 2019-11-06 | 2020-01-10 | 中交上海航道勘察设计研究院有限公司 | Shield waste slurry concentration treatment device and process |
| CN111056722A (en) * | 2018-10-17 | 2020-04-24 | 中电建生态环境集团有限公司 | Sludge treatment equipment |
| CN111072255A (en) * | 2020-02-25 | 2020-04-28 | 浙江金祖环境治理设备股份有限公司 | Mud separation system |
| CN111097219A (en) * | 2019-12-02 | 2020-05-05 | 南华大学 | Ore pulp separating device of submarine mining equipment |
| CN111574002A (en) * | 2020-04-20 | 2020-08-25 | 广州珞珈环境技术有限公司 | River and lake sludge screening method and system |
| CN112047609A (en) * | 2020-09-10 | 2020-12-08 | 长江河湖建设有限公司 | Desilting sediment efficient dewatering and volume reduction system and process based on resource utilization |
| CN112774853A (en) * | 2020-12-25 | 2021-05-11 | 山东大学 | Muck circulating treatment system and method for shield construction |
| CN113213671A (en) * | 2021-06-09 | 2021-08-06 | 东珠生态环保股份有限公司 | Desilting method for silt mixed water body |
| WO2022021807A1 (en) * | 2020-07-29 | 2022-02-03 | 水木金谷环境科技有限公司 | Sludge treatment device |
| CN115010332A (en) * | 2022-06-16 | 2022-09-06 | 中铁工程服务有限公司 | Vehicle-mounted sludge treatment system |
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| CN101607782A (en) * | 2009-07-10 | 2009-12-23 | 黑旋风工程机械开发有限公司 | A kind of fast dewatering method of waste jet grouting cement paste and equipment thereof |
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Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103232149A (en) * | 2013-04-15 | 2013-08-07 | 天津科技大学 | Environmental protection dredging stockyard sediment original position rapid dehydration system |
| CN103408207A (en) * | 2013-08-26 | 2013-11-27 | 黑旋风工程机械开发有限公司 | Integrated test device and method for dredging, dewatering and drying sludge in river and lake |
| CN103408207B (en) * | 2013-08-26 | 2014-09-24 | 黑旋风工程机械开发有限公司 | Integrated test device and method for dredging, dewatering and drying sludge in river and lake |
| CN103526792B (en) * | 2013-10-18 | 2016-03-30 | 无锡威孚精密机械制造有限责任公司 | Accrete clearing device |
| CN103769312A (en) * | 2014-01-09 | 2014-05-07 | 广东华隧建设股份有限公司 | Construction method for processing and recycling slurry shield muck |
| CN103936182A (en) * | 2014-04-23 | 2014-07-23 | 浙江海河环境科技有限公司 | Zero-chemical and zero-discharge treatment method of machine-made sand wastewater |
| CN104291543A (en) * | 2014-10-20 | 2015-01-21 | 贾俊培 | Waste drilling mud non-floor type innocent treatment system and treatment method |
| CN104291543B (en) * | 2014-10-20 | 2016-01-20 | 贾俊培 | Well drilling waste mud does not land innocuity disposal system and treatment process thereof |
| CN104724893A (en) * | 2015-03-06 | 2015-06-24 | 三川德青科技有限公司 | Dredging and classified dewatering treatment method and system for sludge in urban river box culvert |
| CN105776807B (en) * | 2016-04-22 | 2018-12-28 | 北京旭日绿色科技有限公司 | Removable construction slurry scene rapid dewatering system and method |
| CN105776807A (en) * | 2016-04-22 | 2016-07-20 | 北京旭日绿色科技有限公司 | Movable rapid on-site dewatering system and method for building mud |
| CN106000599B (en) * | 2016-06-12 | 2019-05-17 | 黄康明 | A kind of innoxious zero-discharge treatment system of dregs |
| CN106000599A (en) * | 2016-06-12 | 2016-10-12 | 黄康明 | Harmless zero-emission muck treatment system |
| CN106277670A (en) * | 2016-08-29 | 2017-01-04 | 曹鹏 | A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge |
| CN107473561A (en) * | 2017-10-09 | 2017-12-15 | 安徽佳明环保科技股份有限公司 | A kind of multiple sorting separation decrement anhydration system of mud |
| CN107879571A (en) * | 2017-11-16 | 2018-04-06 | 安徽佳明环保科技股份有限公司 | A kind of sewage water treatment method based on Treatment of Sludge intelligent integral equipment |
| CN108439752A (en) * | 2018-03-06 | 2018-08-24 | 胜利油田森诺胜利工程有限公司 | A kind of silt particle separating and dehydrating integrated oil silt particle reduction device |
| CN109016129A (en) * | 2018-07-02 | 2018-12-18 | 广州市永蓝环保科技有限公司 | A method of processing construction mud |
| CN111056722A (en) * | 2018-10-17 | 2020-04-24 | 中电建生态环境集团有限公司 | Sludge treatment equipment |
| CN111056722B (en) * | 2018-10-17 | 2024-03-19 | 中电建生态环境集团有限公司 | Sludge treatment equipment |
| CN109879571A (en) * | 2019-03-12 | 2019-06-14 | 中交疏浚技术装备国家工程研究中心有限公司 | Bottom-mud dewatering desiccation optimal control method |
| CN109966802A (en) * | 2019-05-08 | 2019-07-05 | 江苏建院营造股份有限公司 | A kind of new green environment protection mud disposal system |
| CN110156292A (en) * | 2019-05-29 | 2019-08-23 | 中清深利(深圳)科技有限公司 | A kind of slurry dewatering solidifying and resource utilization method |
| CN110668609A (en) * | 2019-11-06 | 2020-01-10 | 中交上海航道勘察设计研究院有限公司 | Shield waste slurry concentration treatment device and process |
| CN111097219A (en) * | 2019-12-02 | 2020-05-05 | 南华大学 | Ore pulp separating device of submarine mining equipment |
| CN111072255A (en) * | 2020-02-25 | 2020-04-28 | 浙江金祖环境治理设备股份有限公司 | Mud separation system |
| CN111574002A (en) * | 2020-04-20 | 2020-08-25 | 广州珞珈环境技术有限公司 | River and lake sludge screening method and system |
| WO2022021807A1 (en) * | 2020-07-29 | 2022-02-03 | 水木金谷环境科技有限公司 | Sludge treatment device |
| CN112047609A (en) * | 2020-09-10 | 2020-12-08 | 长江河湖建设有限公司 | Desilting sediment efficient dewatering and volume reduction system and process based on resource utilization |
| CN112774853A (en) * | 2020-12-25 | 2021-05-11 | 山东大学 | Muck circulating treatment system and method for shield construction |
| CN113213671A (en) * | 2021-06-09 | 2021-08-06 | 东珠生态环保股份有限公司 | Desilting method for silt mixed water body |
| CN115010332A (en) * | 2022-06-16 | 2022-09-06 | 中铁工程服务有限公司 | Vehicle-mounted sludge treatment system |
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Application publication date: 20120613 |