CN201737821U - Mobile electrode type electroosmosis dehydration device for dehydration of urban sewage sludge - Google Patents
Mobile electrode type electroosmosis dehydration device for dehydration of urban sewage sludge Download PDFInfo
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- CN201737821U CN201737821U CN201020265237XU CN201020265237U CN201737821U CN 201737821 U CN201737821 U CN 201737821U CN 201020265237X U CN201020265237X U CN 201020265237XU CN 201020265237 U CN201020265237 U CN 201020265237U CN 201737821 U CN201737821 U CN 201737821U
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Abstract
The utility model discloses a mobile electrode type electroosmosis dehydration device for dehydration of urban sewage sludge, which consists of a pvc loading barrel, a screw, a mobile electrode assembly, an adjustable voltage DC power supply and the like. The bottom of the loading barrel is provided with an alloy fixed electrode plate. The mobile electrode assembly consisting of a stainless steel conducting rod, a pointed tip alloy electrode, an organic glass upper plate and a nut is rotationally connected with the screw in the center of the loading barrel. After being filled with sludge, the loading barrel is powered on and rotates the screw at the fixed rotating speed to make the mobile electrode assembly descend at constant speed and synchronous regulates the voltage and maintains the voltage gradient among electrodes to carry out electroosmosis dehydration. The utility model can solve the problems of reduction of water content, resistance increase, increase of consumption voltage and reduction of electroosmosis efficiency of a dehydrated sample in a fixed electrode electroosmosis treatment method. After factory sludge with 80 percent of water content is processed by selecting voltage and electrode moving rate according to the electroosmosis characteristic, the water content of the factory sludge can be reduced to 60 percent to 70 percent, and the energy consumption for processing each square of wet sludge is about 120kwh.
Description
Technical field
The utility model relates to the movable-electrode electro-osmosis dewatering unit, especially relates to a kind of movable-electrode electro-osmosis dewatering unit that is used for urban sewage water, sewage sludge dehydrating.
Background technology
The output of China's city sewage and sludge has reached 1,900 ten thousand tons/year (pressing solid content 20% calculates).Just the water ratio of raw sludge is up to 95%, and processed can significantly reduce the mud scale of construction, and then reduces follow-up processing, cost of disposal, is the key link that sludge treatment is disposed.Because the mud hydraulic permeability coefficient is low, the dehydrating effect of mechanical dehydration method commonly used can only reach 80% left and right sides water ratio at present, still has bigger dehydration space.The electric osmose dehydration is the treatment technology that utilizes electric osmosis that mud is dewatered, electric osmose is that the gegenion in the particle surface diffusion double layer moves and drive water molecules is shifted to the negative electrode generation by anode seepage flow under the electrical forces effect, electroosmotic flow can effectively be removed and comprise capillary and planar water at interior moisture, and the osmosis coefficient of mud is far above hydraulic permeability coefficient, so the electric osmose dehydration is considered to a kind of dewatering efficiently.At present both at home and abroad the electric osmose processing mode of fixed electorde is all adopted in dehydration to the mud electric osmose, and the dewatered sludge water ratio reduces in the treating processes, the resistance increase causes attrition voltage to increase, cause electric osmose efficient to decay gradually and energy consumption higher.Above-mentioned deficiency makes mud electric osmose dehydration technique be difficult to application.
Summary of the invention
The purpose of this utility model is to provide a kind of movable-electrode electro-osmosis dewatering unit that is used for urban sewage water, sewage sludge dehydrating.
The technical solution adopted in the utility model is:
The utility model comprises that screw rod, organic glass upper plate, synthetic glass bar, the bottom of being with handgrip have the pvc dress sample tube of interlayer, many support bars, adjustable voltage direct supply, many stainless steel conducting rods, a plurality of tip alloy electrode, alloy fixed plate electrode and geotextile inverted filters; Interlayer upper surface at pvc dress sample tube is covered with geotextile inverted filter and alloy fixed plate electrode from bottom to up successively, have the through hole that five equilibrium distributes on the interlayer upper surface of pvc dress sample tube and the alloy fixed plate electrode, the branches such as outer wall of pvc dress sample tube are installed many support bars, organic glass upper plate is enclosed within the many support bars, the screw rod of band handgrip and the nut at organic glass upper plate center are rotationally connected, the lower end of screw rod connects organic cane, the lower end of synthetic glass bar places on the bearing at pvc dress sample tube bottom center, organic glass upper plate have that five equilibrium distributes through hole, each tip alloy electrode is installed in stainless steel conducting rod lower end separately, in the every fixing organic plate hole on glass in stainless steel conducting rod upper end, the adjustable voltage direct supply just, negative pole connects each root stainless steel conducting rod and alloy fixed plate electrode respectively, by the stainless steel conducting rod, organic glass upper plate, the traveling electrode group that the nut of organic glass upper plate center fixation and tip alloy electrode are formed, when the screw rod of band handgrip rotates, can be along screw rod do the oscilaltion campaign.
The beneficial effect that the utlity model has is:
1) thus the traveling electrode group of design can change the positive and negative electrode spacing by the rotating screw bolt lifting, in dehydration, gradually positive pole is shifted to negative pole, make electric field progressively cross high resistance mud after having dewatered, electric energy is acted on not dewatered sludge, can solve the problem that moisture percentage in sewage sludge reduces, resistance increases consumption voltage in the electric osmose processing, make voltage fully be used for electric osmose, realize dehydration.
2) positive and negative electrode in the utility model connects the adjustable voltage DC power supply, in the treating processes with interelectrode distance reduce reduce on load voltage synchronously, keep interelectrode voltage gradient constant, can steady electric field strength maintenance electroosmotic flow.
3) dress sample tube bottom is established the perforate interlayer, is covered with geotextile on it, plays anti-filter drainage, and removing water can be discharged by interlayer at the bottom of the tube.
4) the utility model adopt traveling electrode in conjunction with regulating voltage to keep the electric osmose dewatering of strength of electric field, can keep electric osmose efficient, and the dehydrating effect of realization homogeneous, the mud that dispatches from the factory of water ratio about 80%, select suitable voltage and electrode rate travel according to its electric osmose characteristic, can make water ratio reduce to 60%～70% after the electric osmose dehydration.
Description of drawings
Fig. 1 is a movable-electrode electro-osmosis dewatering unit synoptic diagram.
Fig. 2 is in the electric osmose processed, traveling electrode group moving process synoptic diagram.
Among the figure: 1, handgrip, 2, organic glass upper plate, 3, screw rod, 4, synthetic glass bar, 5, bearing, 6, the bottom has the pvc dress sample tube of interlayer, 7, support bar, 8, lead, 9, the adjustable voltage direct supply, 10, nut, 11, stainless steel conducting rod, 12, tip alloy electrode, 13, the alloy fixed plate electrode, 14, the geotextile inverted filter.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises that screw rod 3, organic glass upper plate 2, synthetic glass bar 4, the bottom of being with handgrip 1 have the pvc dress sample tube 6 of interlayer, many support bars 7, adjustable voltage direct supply 9, many stainless steel conducting rods 11, a plurality of tip alloy electrode 12, alloy fixed plate electrode 13 and geotextile inverted filters 14; Interlayer upper surface at pvc dress sample tube 6 is covered with geotextile inverted filter 14 and alloy fixed plate electrode 13 from bottom to up successively, have the through hole that five equilibrium distributes on the interlayer upper surface of pvc dress sample tube 6 and the alloy fixed plate electrode 13, the branches such as outer wall of pvc dress sample tube 6 are installed many support bars 7, organic glass upper plate 2 is enclosed within the many support bars 7, the screw rod 3 of band handgrip 1 is rotationally connected with the nut 10 at organic glass upper plate 2 centers, the lower end of screw rod 3 connects organic cane 4, the lower end of synthetic glass bar 4 places on the bearing 5 of pvc dress sample tube 6 bottom centre, organic glass upper plate 2 have that five equilibrium distributes through hole, each tip alloy electrode 12 is installed in stainless steel conducting rod 11 lower ends separately, every stainless steel conducting rod 11 upper end are fixedly in organic glass upper plate 2 holes, adjustable voltage direct supply 9 just, negative pole connects each root stainless steel conducting rod 11 and alloy fixed plate electrode 13 with lead 8 respectively, by stainless steel conducting rod 11, organic glass upper plate 2, the traveling electrode group that the nut 10 of organic glass upper plate 2 center fixation and tip alloy electrode 12 are formed, when the screw rod 3 of band handgrip 1 rotates, can be along screw rod 3 do the oscilaltion campaign.Tip alloy electrode 12 adopts quincuncial arrangement, and the spacing of adjacent tip alloy electrode 12 is 15cm.
Principle of work of the present utility model and working method are as follows:
As shown in Figure 1 and Figure 2, use the utility model that mud is carried out needing to rotate handgrip 1 lifting traveling electrode group to screw rod 3 tops before the electric osmose processed, processed mud is packed into after the bottom has the pvc dress sample tube of interlayer, rotate again that handgrip 1 makes that the traveling electrode group descends, connect adjustable voltage direct supply 9 beginning electric osmose processed behind the tip alloy electrode 12 contact mud.Treating processes as shown in Figure 2, need to rotate handgrip 1 the traveling electrode group is at the uniform velocity descended, and reduce output voltage, the interelectrode voltage gradient of maintenance constant (needing experimental test mud electric osmose characteristic before handling) of adjustable voltage direct supply 9 synchronously to choose suitable on load voltage gradient and electrode rate travel with fixed rotating speed.Electric osmose removes moisture and discharges by pvc dress sample tube 6 bottom interlayers, when tip alloy electrode 12 is closed adjustable voltage direct supply 9, electric osmose processed end of processing during near the mud bottom.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (2)
1. a movable-electrode electro-osmosis dewatering unit that is used for urban sewage water, sewage sludge dehydrating is characterized in that: comprise that screw rod (3), organic glass upper plate (2), synthetic glass bar (4), the bottom of band handgrip (1) have pvc dress sample tube (6), many support bars (7), adjustable voltage direct supply (9), many stainless steel conducting rods (11), a plurality of tip alloy electrode (12), alloy fixed plate electrode (13) and the geotextile inverted filter (14) of interlayer; Interlayer upper surface at pvc dress sample tube (6) is covered with geotextile inverted filter (14) and alloy fixed plate electrode (13) from bottom to up successively, have the through hole that five equilibrium distributes on the interlayer upper surface of pvc dress sample tube (6) and the alloy fixed plate electrode (13), the branches such as outer wall of pvc dress sample tube (6) are installed many support bars (7), organic glass upper plate (2) is enclosed within the many support bars (7), the screw rod (3) of band handgrip (1) is rotationally connected with the nut (10) at organic glass upper plate (2) center, the lower end of screw rod (3) connects organic cane (4), the lower end of synthetic glass bar (4) places on the bearing (5) of pvc dress sample tube (6) bottom centre, organic glass upper plate (2) have that five equilibrium distributes through hole, each tip alloy electrode (12) is installed in stainless steel conducting rod (11) lower end separately, every stainless steel conducting rod (11) upper end is fixedly in organic glass upper plate (2) hole, adjustable voltage direct supply (9) just, negative pole connects each root stainless steel conducting rod (11) and alloy fixed plate electrode (13) respectively, by stainless steel conducting rod (11), organic glass upper plate (2), the traveling electrode group that the nut (10) of organic glass upper plate (2) center fixation and tip alloy electrode (12) are formed, when the screw rod (3) of band handgrip (1) rotates, can do the oscilaltion campaign along screw rod (3).
2. a kind of movable-electrode electro-osmosis dewatering unit that is used for urban sewage water, sewage sludge dehydrating according to claim 1, it is characterized in that: described tip alloy electrode (12) diameter is 1cm, adopt quincuncial arrangement, the spacing of adjacent tip alloy electrode (12) is 15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020265237XU CN201737821U (en) | 2010-07-20 | 2010-07-20 | Mobile electrode type electroosmosis dehydration device for dehydration of urban sewage sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020265237XU CN201737821U (en) | 2010-07-20 | 2010-07-20 | Mobile electrode type electroosmosis dehydration device for dehydration of urban sewage sludge |
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| Publication Number | Publication Date |
|---|---|
| CN201737821U true CN201737821U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020265237XU Expired - Lifetime CN201737821U (en) | 2010-07-20 | 2010-07-20 | Mobile electrode type electroosmosis dehydration device for dehydration of urban sewage sludge |
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| Country | Link |
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| CN (1) | CN201737821U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891365A (en) * | 2010-07-20 | 2010-11-24 | 浙江大学 | Movable-electrode electro-osmosis dewatering device for dewatering urban sewage sludge |
| CN107381997A (en) * | 2017-09-19 | 2017-11-24 | 饶宾期 | Electro-osmosis press filtration synergistic mud dewatering method |
| CN107381996A (en) * | 2017-09-19 | 2017-11-24 | 饶宾期 | Electro-osmosis press filtration synergistic mud dewatering device |
| CN107555754A (en) * | 2017-09-19 | 2018-01-09 | 饶宾期 | Energy-saving electrical permeates sludge high-drying degree dewatering |
-
2010
- 2010-07-20 CN CN201020265237XU patent/CN201737821U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891365A (en) * | 2010-07-20 | 2010-11-24 | 浙江大学 | Movable-electrode electro-osmosis dewatering device for dewatering urban sewage sludge |
| CN101891365B (en) * | 2010-07-20 | 2011-09-21 | 浙江大学 | Movable-electrode electro-osmosis dewatering device for dewatering urban sewage sludge |
| CN107381997A (en) * | 2017-09-19 | 2017-11-24 | 饶宾期 | Electro-osmosis press filtration synergistic mud dewatering method |
| CN107381996A (en) * | 2017-09-19 | 2017-11-24 | 饶宾期 | Electro-osmosis press filtration synergistic mud dewatering device |
| CN107555754A (en) * | 2017-09-19 | 2018-01-09 | 饶宾期 | Energy-saving electrical permeates sludge high-drying degree dewatering |
| CN107381997B (en) * | 2017-09-19 | 2020-10-13 | 海河环境技术(杭州)有限公司 | Electroosmosis filter pressing and sludge dewatering cooperated method |
| CN107555754B (en) * | 2017-09-19 | 2020-10-23 | 中国计量大学 | Energy-saving electroosmosis sludge high-dryness dehydration method |
| CN107381996B (en) * | 2017-09-19 | 2023-05-26 | 上海国惠环保科技集团有限公司 | Electroosmosis filter-pressing cooperated sludge dewatering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110209 Effective date of abandoning: 20110921 |