CN101423319A - Novel dehydration system - Google Patents
Novel dehydration system Download PDFInfo
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- CN101423319A CN101423319A CNA2008102274195A CN200810227419A CN101423319A CN 101423319 A CN101423319 A CN 101423319A CN A2008102274195 A CNA2008102274195 A CN A2008102274195A CN 200810227419 A CN200810227419 A CN 200810227419A CN 101423319 A CN101423319 A CN 101423319A
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- dewatering
- cylinder
- compressive belt
- dehydration system
- novel dehydration
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Abstract
The invention provides a novel dewatering system, which comprises a machine frame. The dewatering system is characterized in that the dewatering system at least comprises a mechanical type extrusion dewatering device, an electric infiltration type dewatering device and a vacuum adsorption type dewatering device. The dewatering system has the advantages of high dewatering rate, high operating reliability and energy conservation and environmental protection.
Description
Technical field
The present invention relates to the new and effective sludge dewatering system 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 the discharging meeting causes new pollution to environment, higher several cities and area of Chinese Urbanization level particularly, 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.
Summary of the invention
The present situation that all needs to reduce water ratio at mud in several technologies of existing sludge disposal, the object of the present invention is to provide a kind of dewatering system 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.
Technical scheme of the present invention is as follows:
A kind of novel dehydration system comprises frame, it is characterized in that: described dewatering system comprises mechanical type squeezing dehydration device, osmosis formula dewatering unit and vacuum adsorption type dewatering unit at least.
Described mechanical type squeezing dehydration device 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 system 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 system also comprises Scraping device.
Described dewatering system also comprises the flushing arrangement that prevents its obstruction in order to the flushing compressive belt.
Described dewatering system 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 system and dewater.
Technique effect of the present invention is:
The present invention 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 invention 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 that the mud through preliminary hydro-extraction is further dewatered, can obtain higher dehydration rate at the rear portion of compressive belt.
Description of drawings
Figure 1 shows that structural representation of the present invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, dewatering system 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.
Anodized insulation net 9 is removed the mud that attaches on it after breaking away from the dehydration zone by Scraping device 10.
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 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 system fallback with the range ability of control filter screen 4.
The above only is a preferred implementation of the present invention, and other modification and improvement for making according to invention essence of the present invention all should belong to protection scope of the present invention.
Claims (10)
1. a novel dehydration system comprises frame, it is characterized in that: described dewatering system comprises mechanical extruding type dewatering unit, osmosis formula dewatering unit and vacuum adsorption type dewatering unit at least.
2. a kind of novel dehydration system 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. as a kind of novel dehydration system as described in the claim 2, it is characterized in that: described dewatering system 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 novel dehydration system 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 novel dehydration system as claimed in claim 2 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 novel dehydration system as claimed in claim 5 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 novel dehydration system as claimed in claim 2 is characterized in that: described dewatering system also comprises Scraping device.
8. a kind of novel dehydration system as claimed in claim 2 is characterized in that: described dewatering system also comprises the flushing arrangement that prevents its obstruction in order to the flushing compressive belt.
9. a kind of novel dehydration system as claimed in claim 2 is characterized in that: described dewatering system also comprises in order to adjust the setting device of compressive belt sideslip.
10. a kind of novel dehydration system 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 system and dewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810227419A CN101423319B (en) | 2008-11-26 | 2008-11-26 | Novel dehydration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810227419A CN101423319B (en) | 2008-11-26 | 2008-11-26 | Novel dehydration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101423319A true CN101423319A (en) | 2009-05-06 |
| CN101423319B CN101423319B (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810227419A Expired - Fee Related CN101423319B (en) | 2008-11-26 | 2008-11-26 | Novel dehydration system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101423319B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993183B (en) * | 2009-08-14 | 2012-12-26 | 桑德国际有限公司 | Sludge dewatering device |
| CN105668983A (en) * | 2016-03-16 | 2016-06-15 | 柳州市杰特建材有限责任公司 | Slurry collecting method dewatering system and process |
| 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 |
| CN110002714A (en) * | 2019-04-30 | 2019-07-12 | 华南理工大学 | Cathode and the saturating belt filter-pressing device of the integrated sludge electroosmotic of expelling belt and method |
-
2008
- 2008-11-26 CN CN200810227419A patent/CN101423319B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993183B (en) * | 2009-08-14 | 2012-12-26 | 桑德国际有限公司 | Sludge dewatering device |
| CN105668983A (en) * | 2016-03-16 | 2016-06-15 | 柳州市杰特建材有限责任公司 | Slurry collecting method dewatering system and process |
| 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 |
| CN110002714A (en) * | 2019-04-30 | 2019-07-12 | 华南理工大学 | Cathode and the saturating belt filter-pressing device of the integrated sludge electroosmotic of expelling belt and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101423319B (en) | 2012-09-05 |
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Granted publication date: 20120905 Termination date: 20171126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |