CN102503070A - Device for reducing water ratio of sludge - Google Patents
Device for reducing water ratio of sludge Download PDFInfo
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- CN102503070A CN102503070A CN2011103558158A CN201110355815A CN102503070A CN 102503070 A CN102503070 A CN 102503070A CN 2011103558158 A CN2011103558158 A CN 2011103558158A CN 201110355815 A CN201110355815 A CN 201110355815A CN 102503070 A CN102503070 A CN 102503070A
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- transmission shaft
- blade
- screw blade
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- sludge
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Abstract
The invention discloses a device for reducing water ratio of sludge. The device for reducing the water ratio of the sludge comprises a hollow transmission shaft, wherein a water drain pipe is arranged inside the improved transmission shaft; an upper spiral blade and a lower spiral blade are arranged on the transmission shaft; an electrically-conductive plate is arranged below the upper spiral blade; the electrically-conductive plate is insulated from the upper spiral blade; a metal water filtering layer is arranged on the upper surface of the lower spiral blade; the metal water filtering layer is insulated from the lower spiral blade; a power cord is arranged inside the transmission shaft; the positive electrode of a power supply is connected to the electrically-conductive plate; and the negative electrode of the power supply is connected to the metal water filtering layer. Compared with the prior art, under the action of an electromotive force, water migrates towards the lower blade, while a vacuumizing position is rightly above the lower blade, so that the vacuumizing efficiency is improved; and along with the downward movement of the upper blade, the upper blade is always separated from dry sludge to be in contact with the sludge with relatively high water ratio, so that the water and heavy metal migrating capability of the electromotive force is improved.
Description
Technical field
The present invention relates to environment, civil engineering, hydrotechnics field, especially a kind of recycling treatment that is used for contaminated mud.
Background technology
High-moisture and be rich in the mud of heavy metal if do not handle, is arbitrarily stacked and is formed secondary pollution easily, and occupied ground.Want to make its resource utilization must reduce water ratio and to reduce heavy metal ion free.Vacuumizing is one of method that reduces water ratio, but it can only effectively reduce near the moisture of the regional area of evacuated panel, and apart from evacuated panel zone far away, moisture lowers efficiency lower.The electrokinetic force technology can make moisture and heavy metal to negative electrode (negative pole) enrichment, and anode (positive pole) near zone can form the low-down dry ground district of water ratio, still; Formation (resistance increase along with the dry ground district; Electric current reduces), its migration moisture and heavy metal ability can descend rapidly, in addition; Because the enrichment of moisture, the water ratio of the soil body at negative electrode place can increase.Also the someone proposes to vacuumize with the electrokinetic force technical tie-up and uses low soil moisture content; But their evacuated panel position and electrode position all are fixed; Vacuumize and the certain hour of switching on after, its inefficiency problem can't solve, and mud different zones moisture reduces degree varies appearance.In addition, heavy metal pollution problem can't eliminated or reduce to this integrated processes.With the heavy metal of cement in can solidification sludge, make it no longer separate out and form pollution, but this method cement consumption to reach the 30-40% of sludge volume, in addition more, very uneconomical.
In a word, also do not have a cover not only effectively but also economical now, can reduce moisture percentage in sewage sludge and the method and the support equipment that prevent the heavy metal secondary pollution simultaneously.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to above-mentioned prior art, and a kind of device that reduces moisture percentage in sewage sludge is provided.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of device that is used to reduce moisture percentage in sewage sludge comprises the transmission shaft of a hollow, and this changes and is provided with water shoot in the transmission shaft; It is characterized in that: also be provided with screw blade and following screw blade on the described transmission shaft; On described, be provided with conducting plates below the screw blade, this conducting plates and the insulation of last screw blade are provided with metal drainage layer at described screw blade upper surface down; This metal drainage layer and the insulation of described screw blade down; Lower end at metal drainage layer is provided with water port, and this water port is connected with described water shoot, in described transmission shaft, also is provided with supply lead; The positive pole of power supply is connected on the described conducting plates, and the negative pole of power supply is connected on the described metal drainage layer.
Described metal drainage layer is the reinforcing bar double-edged fine-toothed comb, is provided with filter cloth in the lower end of reinforcing bar double-edged fine-toothed comb, and described water port is arranged on the filter cloth lower end.
Be provided with the grout nozzle at the described lower surface of screw blade down, the grout pipe that is connected with this nozzle is arranged in the transmission shaft.
The described screw blade of going up is fixed on the blade set collar, but being arranged on the transmission shaft at this blade set collar axial slip.
Described blade set collar is provided with draw-in groove, and described transmission shaft is provided with Ka Tai, and described draw-in groove is arranged on Ka Tainei.
Compared with prior art, the invention has the beneficial effects as follows:
1, under electrodynamicaction, moisture moves to lower blade, and the position that vacuumizes is exactly on lower blade, thus the efficient that helps vacuumizing.
2, along with, cutter is constantly descending, it always breaks away from dried mud and contacts with the bigger mud of water ratio, thereby has improved the ability of electrokinetic force migration moisture and heavy metal.
3, when heavy metal is enriched in the mud bottom,, need mix, thereby save cement consumption in a large number with all mud as long as stir the effect that just can play heavy metals immobilization with the mud of cement and bottom.
4, this equipment can be removed to reduce the instrument of mud water ratio by independent conduct, and is same, and it also can be used as curing heavy metal (in the mud bottom) separately; Also can on the basis of curing heavy metal, continue to make cement mixing pile.Thereby an equipment has multiple use.
Description of drawings
Fig. 1 is apparatus of the present invention profile synoptic diagram.
Fig. 2 is a screw blade upper surface synoptic diagram under the present invention.
Fig. 3 is a screw blade lower surface synoptic diagram under the present invention.
Fig. 4 is the connection synoptic diagram of reinforcing bar double-edged fine-toothed comb of the present invention.
Fig. 5 is screw blade lower surface synoptic diagram in the present invention.
Fig. 6 is screw blade upper surface synoptic diagram in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1; A kind ofly be used to reduce the water ratio device, it is by last screw blade 1, and supporting parts such as following screw blade 2, hollow rotation axis 3 and water shoot 4 are formed; Described its profile of lower blade that goes up is similar to water screw; Following screw blade upside is opened shallow slot, and rubber pad 21, filter cloth 22 and concrete reinforcement bar double-edged fine-toothed comb 23 are installed above the shallow slot from bottom to top successively, sees Fig. 4.Like Fig. 2, shown in Figure 3, be provided with shallow slot at the lower blade downside, cement throwing jet mouth 24 is arranged in the lower surface shallow slot.The downside of last screw blade is opened shallow slot, and rubber pad and conducting plates 11 are installed above the shallow slot, sees Fig. 5.Described transmission shaft 3 is a hollow steel tube; In establish water shoot 4, grout pipe 5 and two wires 6; Wherein water shoot 4, grout pipe 5 are connected with water port and grout nozzle on the following screw blade 2, and one in two electric wires are connected with the reinforcing bar grate 23 of following screw blade, and one is connected with the conducting plates 11 of last screw blade; What wherein be connected with conducting plates 11 is positive source, and what be connected with the reinforcing bar double-edged fine-toothed comb is power cathode.In addition, it is to connect through draw-in groove 7 that last screw blade 1 is connected with transmission shaft 3, and last screw blade can be along axially the moving up and down of transmission shaft 3, referring to Fig. 6 within the specific limits.
Because energising, concrete reinforcement bar double-edged fine-toothed comb 23 and all corrosion easily of conducting plates 11 are so the present invention is designed to removable parts with them, so that after corrosion, change.Simultaneously, because last lower blade belongs to expensive components, so in order to prevent corrosion, they all form the insulation relation with reinforcing bar double-edged fine-toothed comb and conducting plates.
Claims (5)
1. device that is used to reduce moisture percentage in sewage sludge comprises the transmission shaft of a hollow, and this changes and is provided with water shoot in the transmission shaft; It is characterized in that: also be provided with screw blade and following screw blade on the described transmission shaft; On described, be provided with conducting plates below the screw blade, this conducting plates and the insulation of last screw blade are provided with metal drainage layer at described screw blade upper surface down; This metal drainage layer and the insulation of described screw blade down; Lower end at metal drainage layer is provided with water port, and this water port is connected with described water shoot, in described transmission shaft, also is provided with supply lead; The positive pole of power supply is connected on the described conducting plates, and the negative pole of power supply is connected on the described metal drainage layer.
2. the device that is used to reduce moisture percentage in sewage sludge according to claim 1 is characterized in that: described metal drainage layer is the reinforcing bar double-edged fine-toothed comb, is provided with filter cloth in the lower end of reinforcing bar double-edged fine-toothed comb, and described water port is arranged on the filter cloth lower end.
3. the device that is used to reduce moisture percentage in sewage sludge according to claim 1 and 2 is characterized in that: be provided with the grout nozzle at the described lower surface of screw blade down, the grout pipe that is connected with this nozzle is arranged in the transmission shaft.
4. the device that is used to reduce moisture percentage in sewage sludge according to claim 3 is characterized in that: the described screw blade of going up is fixed on the blade set collar, but being arranged on the transmission shaft at this blade set collar axial slip.
5. the device that is used to reduce moisture percentage in sewage sludge according to claim 4 is characterized in that: described blade set collar is provided with draw-in groove, and described transmission shaft is provided with Ka Tai, and described draw-in groove is arranged on Ka Tainei.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110355815 CN102503070B (en) | 2011-11-11 | 2011-11-11 | Device for reducing water ratio of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110355815 CN102503070B (en) | 2011-11-11 | 2011-11-11 | Device for reducing water ratio of sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102503070A true CN102503070A (en) | 2012-06-20 |
| CN102503070B CN102503070B (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110355815 Expired - Fee Related CN102503070B (en) | 2011-11-11 | 2011-11-11 | Device for reducing water ratio of sludge |
Country Status (1)
| Country | Link |
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| CN (1) | CN102503070B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524012A (en) * | 2013-10-09 | 2014-01-22 | 福建清道夫环保科技有限公司 | Shaftless screw air supply and barrier mechanism |
| CN106542714A (en) * | 2015-09-18 | 2017-03-29 | 山东浩海疏浚装备有限公司 | A kind of sludge solidification pumps integrated vehicle |
| CN108101338A (en) * | 2017-12-22 | 2018-06-01 | 佛山科学技术学院 | Sludge dehydration device based on electro-osmosis principle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127012A (en) * | 1987-11-13 | 1989-05-19 | Fuji Electric Co Ltd | Electrode of electroosmosis type dehydrator |
| CN1274686A (en) * | 2000-06-16 | 2000-11-29 | 清华大学 | Electrical sludge-dewatering equipment with horizontal electric field |
| CN1948193A (en) * | 2006-10-30 | 2007-04-18 | 天津大学 | Electric field synergistic mud dewatering method and its device |
| CN101993183A (en) * | 2009-08-14 | 2011-03-30 | 伊普国际有限公司 | Sludge dewatering device |
-
2011
- 2011-11-11 CN CN 201110355815 patent/CN102503070B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127012A (en) * | 1987-11-13 | 1989-05-19 | Fuji Electric Co Ltd | Electrode of electroosmosis type dehydrator |
| CN1274686A (en) * | 2000-06-16 | 2000-11-29 | 清华大学 | Electrical sludge-dewatering equipment with horizontal electric field |
| CN1948193A (en) * | 2006-10-30 | 2007-04-18 | 天津大学 | Electric field synergistic mud dewatering method and its device |
| CN101993183A (en) * | 2009-08-14 | 2011-03-30 | 伊普国际有限公司 | Sludge dewatering device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524012A (en) * | 2013-10-09 | 2014-01-22 | 福建清道夫环保科技有限公司 | Shaftless screw air supply and barrier mechanism |
| CN103524012B (en) * | 2013-10-09 | 2015-12-02 | 福建清道夫环保科技有限公司 | Shaftless screw is supplied gas double stock stop |
| CN106542714A (en) * | 2015-09-18 | 2017-03-29 | 山东浩海疏浚装备有限公司 | A kind of sludge solidification pumps integrated vehicle |
| CN108101338A (en) * | 2017-12-22 | 2018-06-01 | 佛山科学技术学院 | Sludge dehydration device based on electro-osmosis principle |
| CN108101338B (en) * | 2017-12-22 | 2023-05-30 | 佛山科学技术学院 | Sludge dewatering device based on electroosmosis principle |
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| Publication number | Publication date |
|---|---|
| CN102503070B (en) | 2013-03-06 |
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