CN201338982Y - Novel dehydration device - Google Patents
Novel dehydration device Download PDFInfo
- Publication number
- CN201338982Y CN201338982Y CNU2008201239113U CN200820123911U CN201338982Y CN 201338982 Y CN201338982 Y CN 201338982Y CN U2008201239113 U CNU2008201239113 U CN U2008201239113U CN 200820123911 U CN200820123911 U CN 200820123911U CN 201338982 Y CN201338982 Y CN 201338982Y
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- dewatering
- dewatering unit
- cylinder
- compressive belt
- unit
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- Treatment Of Sludge (AREA)
Abstract
The utility model provides a novel dehydration device, which comprises a stander, and is characterized by comprising at least a mechanical squeeze-type dehydration device, an electro-osmosis-type dehydration device and a vacuum absorption-type dehydration device. The utility model has the effects of high rate of dehydration, high operational reliability and energy conservation and environment protection.
Description
Technical field
The utility model relates to the new and effective sludge dehydration device of a kind of mechanical presses, osmosis, vacuum suck integral type.
Background technology
Along with social economy and development of urbanization, the output of municipal effluent and quantity are in continuous growth.According to incompletely statistics, national quantity of wastewater effluent in 2006 is about 53,700,000,000 tons.Along with the raising of wastewater treatment rate, the Chinese city sewage load also had bigger growth 20 years of future.Be accompanied by and produce a large amount of excess sludges.The output of estimating the Chinese city dewatered sludge reaches annual about 8,400,000 tons (amounting to the wet mud forty-two million ton of water ratio 80%) the most at last, account for 3.2% of national total solids waste discharge amount, and annual growth is greater than 10%.
The composition of mud is very complicated, the aggregate that the zoogloea that is formed by multiple microorganism and its adsorbed organic matter and inorganics are formed, except that containing a large amount of moisture (through after the mechanical presses dehydration still up to more than 80%), the organic group, heavy metal and the salt that also contain difficult degradation, and pathogenic micro-organism and parasitic ovum etc.If a large amount of undressed mud is stacked arbitrarily and discharge environment has been caused new pollution, particularly the higher several cities of Chinese Urbanization level are with regional, and the sludge disposal problem is very outstanding.
The final treatment process of mud mainly comprises sanitary landfill, burning and compost at present.But also there are some problems in the mud landfill, be mainly reflected in following two aspects: first, the soil mechanical properties of mud are poor, the mud solid content of delivering to the landfill yard landfill at present is 20%, landfill very easily forms the marshy terrain separately, if also have phenomenons such as the landslide caves in southern rainy season, these all can cause landfill yard end ahead of time in work-ing life.The second, the percolate of mud can pollute underground water source.China Ministry of Construction clearly stipulates from October 1st, 2007 in " the CJ/T249-2007 urban wastewater treatment firm sludge disposal mixing landfill shale " of promulgation in 2007, forbids that water ratio directly enters refuse landfill greater than 60% mud.That burn to use behind the wet sludge anhydration is comparatively general again, directly burns not only very difficultly through the mud of mummification, and also is extremely uneconomic on energy consumption, because excess moisture need be added a lot of auxiliary fuels.And sludge composting equally also need to mud carry out drying and other treatment or add sawdust, leaf waits the solids ratios that improves mud.
The utility model content
The present situation that all needs to reduce water ratio at mud in several technologies of existing sludge disposal, the purpose of this utility model is to provide a kind of dewatering unit of mechanical presses, osmosis and vacuum suck integral type that utilizes to carry out sludge dewatering treatment, with realize that sludge dewatering is efficient, safety, low cost.
The technical solution of the utility model is as follows:
A kind of dewatering device, comprise frame, it is characterized in that: described dewatering unit comprises mechanical extruding type dewatering unit, osmosis formula dewatering unit and vacuum adsorption type dewatering unit at least, and described mechanical extruding type dewatering unit, described osmosis formula dewatering unit are connected successively with described vacuum adsorption type dewatering unit.
Described mechanical extruding type dewatering unit and osmosis formula dewatering unit are integral structure, the flexible water-permeable compressive belt that comprises cylinder and be centered around this cylinder periphery, be provided with dielectric between described compressive belt and the cylinder surface, described compressive belt is connected different electrodes respectively with cylinder surface, make that described compressive belt both can be under external force, the spacing of adjusting and outer surface of cylinder and pressure carry out the mechanical presses dehydration; Again can and cylinder surface between form electric field and carry out electroosmotic dewatering.
Described dewatering unit is twin-roll or multiple-roll structure, and described each cylinder is arranged side by side, and described compressive belt is centered around respectively on the cylindrical shell of each cylinder by the guide roller that is arranged between each adjacent roller.
Described dielectric is the insulating tape that is complementary with compressive belt.
Described vacuum absorption device is arranged on the postmedian of the effective crush stroke of compressive belt.
Described vacuum absorption device is arranged on the rear portion of the effective crush stroke of compressive belt.
Described dewatering unit also comprises Scraping device.
Described dewatering unit also comprises the flushing arrangement in order to the flushing compressive belt.
Described dewatering unit also comprises in order to adjust the setting device of compressive belt sideslip.
The side end that described compressive belt matches with roller tube is provided with sludge distribution device, and described sludge distribution device can evenly be sent into material to be drained off in the dewatering unit and dewater.
Technique effect of the present utility model is:
The utility model is by combining flexible water-permeable compressive belt and drum apparatus, and can utilize interacts between cylinder rotation and the compressive belt evenly is applied to squeeze on the mud to be drained off, realizes the mechanical external force formula processed of mud; Simultaneously with cylinder surface different electric polarities is set respectively at compressive belt, make the certain electric field of formation between compressive belt and the cylinder surface, utilize the principle of osmosis that the moisture in the mud is removed, compare traditional mechanical extruding type dehydration, dewatering efficiency of the present utility model and effect are more remarkable and efficient, and can not cause the significantly increase of sludge dewatering cost, have very high economic worth and social benefit.
Simultaneously, be provided with vacuum absorption device, utilize the negative pressure of vacuum environment, can obtain higher dehydration rate further dewatering through the mud that goes out preliminary hydro-extraction at the rear portion of compressive belt.
Description of drawings
Figure 1 shows that structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, dewatering unit comprises frame 1, cylinder 5 is fixed on the frame 1, present embodiment intermediate roll 5 is two, and be arranged side by side, filter screen 4 is centered around by guide roller 2 on the periphery of cylinder 5, and filter screen 4 arranged outside have current collecting equipment 3, under the effect of current collecting equipment 3, distributed anode electric charge on the cylinder 5, distribution negative electrode electric charge on the filter screen 4 is for fear of short circuit between cylinder 5 and the filter screen 4, between cylinder 5 and filter screen 4, cylinder 5 one sides are provided with anodized insulation net 9, filter screen 4 one sides are provided with cathode insulation net 13, and anodized insulation net 9 is by setting device 7,8 tensionings of guide roller group, cathode insulation net 13 is by 14 tensionings of guide roller group.
Filter screen 4 adopts pneumatic tensioning system 17 to regulate the tensioning degree of filter screen 4, and drive unit 11 drives filter screen 4 motions, and cylinder 5 rolls with filter screen 4.
After anodized insulation net 9 breaks away from drying zones, Scraping device 10 scrapeds adherent mud on it.
The starting end of filter screen 4 drying zones is positioned at the top of cylinder 5, and be provided with sludge distribution device 6, sludge distribution device 6 is evenly inserted mud to be drained off between filter screen 4 and the cylinder 5 by cloth mud mouth, the bottom of cylinder 5 and filter screen 4 is provided with drip tray 18, and to accept the sewage that infiltrates through filter screen 4, drip tray 18 belows are provided with flushing arrangement 15, with flushing filter screen 4, in order to avoid in follow-up dehydration work, stop up, and reduce or the destruction dewatering, guarantee that filter screen 4 reliably recycles.
Also be provided with journey controller 12 in the present embodiment,, improve dewatering efficiency, avoid the dewatering unit fallback with the range ability of control filter screen 4.
The above only is a preferred implementation of the present utility model, and other modification and improvement for making according to invention essence of the present utility model all should belong to protection domain of the present utility model.
Claims (10)
1. dewatering device, comprise frame, it is characterized in that: described dewatering unit comprises mechanical extruding type dewatering unit, osmosis formula dewatering unit and vacuum adsorption type dewatering unit at least, and described mechanical extruding type dewatering unit, described osmosis formula dewatering unit are connected successively with described vacuum adsorption type dewatering unit.
2. a kind of dewatering device as claimed in claim 1, it is characterized in that: described mechanical extruding type dewatering unit and osmosis formula dewatering unit are integral structure, the flexible water-permeable compressive belt that comprises cylinder and be centered around this cylinder periphery, be provided with dielectric between described compressive belt and the cylinder surface, described compressive belt is connected different electrodes respectively with cylinder surface, make that described compressive belt both can be under external force, the spacing of adjusting and outer surface of cylinder and pressure carry out the mechanical presses dehydration; Again can and cylinder surface between form electric field and carry out electroosmotic dewatering.
3. a kind of dewatering device as claimed in claim 2, it is characterized in that: described dewatering unit is twin-roll or multiple-roll structure, described each cylinder is arranged side by side, and described compressive belt is centered around respectively on the cylindrical shell of each cylinder by the guide roller that is arranged between each adjacent roller.
4. a kind of dewatering device as claimed in claim 3 is characterized in that: described dielectric is the insulating tape that is complementary with compressive belt.
5. a kind of dewatering device as claimed in claim 2, it is characterized in that: described vacuum absorption device is arranged on the postmedian of the effective crush stroke of compressive belt.
6. a kind of dewatering device as claimed in claim 5, it is characterized in that: described vacuum absorption device is arranged on the rear portion of the effective crush stroke of compressive belt.
7. a kind of dewatering device as claimed in claim 2, it is characterized in that: described dewatering unit also comprises Scraping device.
8. a kind of dewatering device as claimed in claim 2 is characterized in that: described dewatering unit also comprises the flushing arrangement in order to the flushing compressive belt.
9. a kind of dewatering device as claimed in claim 2 is characterized in that: described dewatering unit also comprises in order to adjust the setting device of compressive belt sideslip.
10. a kind of dewatering device as claimed in claim 2 is characterized in that: the side end that described compressive belt matches with roller tube is provided with sludge distribution device, and described sludge distribution device can evenly be sent into material to be drained off in the dewatering unit and dewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201239113U CN201338982Y (en) | 2008-11-26 | 2008-11-26 | Novel dehydration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201239113U CN201338982Y (en) | 2008-11-26 | 2008-11-26 | Novel dehydration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201338982Y true CN201338982Y (en) | 2009-11-04 |
Family
ID=41234527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201239113U Expired - Fee Related CN201338982Y (en) | 2008-11-26 | 2008-11-26 | Novel dehydration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201338982Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036508A (en) * | 2015-06-12 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for solidifying sludge by virtue of vacuum electric osmosis combined dynamic load |
| CN106865944A (en) * | 2017-02-23 | 2017-06-20 | 北京海斯顿水处理设备有限公司 | A kind of vacuum electric permeates sludge drying device and its method |
-
2008
- 2008-11-26 CN CNU2008201239113U patent/CN201338982Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036508A (en) * | 2015-06-12 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for solidifying sludge by virtue of vacuum electric osmosis combined dynamic load |
| CN106865944A (en) * | 2017-02-23 | 2017-06-20 | 北京海斯顿水处理设备有限公司 | A kind of vacuum electric permeates sludge drying device and its method |
| CN106865944B (en) * | 2017-02-23 | 2019-11-26 | 北京海斯顿水处理设备有限公司 | A kind of vacuum electric infiltration sludge drying device and its method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20171126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |