CN101759342A - Sludge vacuum subcharge combined compressing and dewatering device - Google Patents
Sludge vacuum subcharge combined compressing and dewatering device Download PDFInfo
- Publication number
- CN101759342A CN101759342A CN200910260811A CN200910260811A CN101759342A CN 101759342 A CN101759342 A CN 101759342A CN 200910260811 A CN200910260811 A CN 200910260811A CN 200910260811 A CN200910260811 A CN 200910260811A CN 101759342 A CN101759342 A CN 101759342A
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- compression
- tank
- sludge
- vacuum
- geomembrane
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- 239000010802 sludge Substances 0.000 title claims abstract description 51
- 230000006835 compression Effects 0.000 claims abstract description 62
- 238000007906 compression Methods 0.000 claims abstract description 62
- 239000010865 sewage Substances 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 208000005156 Dehydration Diseases 0.000 description 8
- 230000018044 dehydration Effects 0.000 description 8
- 238000006297 dehydration reaction Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- 238000007596 consolidation process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The present invention discloses a sludge vacuum subcharge combined compression and dewatering device. The device comprises a compression tank, a framework, a vacuum device and a sewage buffer tank, wherein sludge is compressed in the compression tank, and a drain pipe communicated to the sewage buffer tank is arranged on the inner bottom of the tank; the framework is arranged in the compression tank, the vacuum device connected with the sewage buffer tank is arranged outside the compression tank, and the vacuum device comprises a geomembrane and a vacuum pump. The compression tank is closed by the geomembrane, the compression tank is vacuumized by the vacuum pump to produce negative pressure under the geomembrane, and water in the sludge in the compression tank is sucked out, led to the sewage buffer tank and discharged. The use of the dewatering device can largely shorten the dewatering period of the sludge and achieve the purposes of low investment and high efficiency.
Description
Technical Field
The invention relates to sludge treatment equipment, in particular to a sludge vacuum stacking combined compression dehydration device for sludge dehydration.
Background
With the rapid development of economic construction in China, the sewage discharge amount and the sludge yield are increased sharply. The sludge has large water content and needs to be dewatered before harmless treatment. The existing sludge dewatering equipment comprises extrusion equipment, centrifugal equipment, heating equipment and the like, and not only is the equipment expensive and complicated in structure, but also a large amount of energy is consumed during operation, the economic cost is high, the treatment efficiency is not very high, the single treatment capacity is small, and large-scale treatment is difficult to carry out.
Disclosure of Invention
The invention aims to provide a novel, economical and effective sludge vacuum stacking combined compression dehydration device, which can realize large-scale sludge dehydration treatment and provide a prior condition for subsequent sludge treatment and utilization.
In order to achieve the purpose, the technical scheme of the invention is as follows: a sludge vacuum stacking combined compression dehydration device comprises a compression pool, a frame, a vacuum device and a sewage buffer tank; wherein,
the compression tank provides a sludge compression place, and a drainage pipeline is arranged at the bottom in the compression tank and communicated to the sewage buffer tank outside the compression tank; the frame is arranged in the compression tank, the vacuum device is positioned outside the compression tank and comprises a geomembrane and a vacuum pump, the vacuum pump is communicated with the sewage buffer tank, the geomembrane is enabled to seal the compression tank, and the vacuum pump is used for vacuumizing to generate negative pressure under the geomembrane, so that the moisture in the sludge in the compression tank is sucked out and introduced into the sewage buffer tank.
The compression tank is made of reinforced concrete.
And a filter layer is laid at the bottom of the compression tank and consists of a gravel cushion layer, a geogrid and non-woven fabrics.
The frame is formed by welding reinforcing steel bars, a layer of geotechnical net with a filter membrane is fixed on the inner side of the frame, and lifting rings are arranged at the top corners of the frame.
A ballast device may be placed on the geomembrane to further compress the sludge to remove moisture.
The stacking device consists of a loading plate and a concrete block.
And a drain valve is arranged at the bottom of the sewage buffer tank.
By adopting the scheme, the invention has the function of sludge concentration, fully utilizes the vacuum negative pressure formed by the vacuum pump and the pressure provided by the stacking device, compresses the sludge under the geomembrane, and leads the water in the sludge to enter the drainage pipeline in the compression tank through the filter layer and be introduced into the sewage buffer tank.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the preferred embodiment of the sludge vacuum loading combined compression dewatering device of the present invention is composed of a compression pool 1, a filtering layer 2, a frame 3, a vacuum device 4, a sewage buffer tank 5 and a loading device 6; wherein,
the compression tank 1 is built by reinforced concrete and provides a sludge compression place, a drainage pipeline 11 is arranged at the bottom in the tank, and the drainage pipeline 11 is communicated to a sewage buffer tank 5 outside the compression tank 1; the filtering layer 2 is composed of a gravel cushion layer 21, a geogrid 22 and non-woven fabrics 23 and is sequentially laid at the bottom of the compression pool 1, the gravel cushion layer 21 is positioned at the bottommost layer, the laying thickness is 20cm, the diameter of gravel is 3-6cm, the geogrid 22 is laid on the gravel cushion layer 21 and used for balancing stress to prevent uneven settlement, the non-woven fabrics 23 are laid above, and sewage flows into a drainage pipeline 11 of the compression pool 1 after being filtered by the filtering layer 2; the frame 3 is arranged in the compression tank 1 and used for containing sludge, the frame is formed by welding reinforcing steel bars, the interval holes are 10cm, a layer of geotechnical net 31 with a filter membrane is fixed on the inner side of the frame 3 and used for reverse filtration, the geotechnical net 31 comprises a containing cavity part 311 fixed on the inner side surface of the frame 3 and a cover part 312 covering the top of the containing cavity part 311, and a lifting ring 32 is arranged at the top angle of the frame so as to facilitate lifting equipment to lift the frame 3; the vacuum device 4 comprises a geomembrane 41 and a vacuum pump 42, wherein the geomembrane 41 seals the compression tank 1, the vacuum pump 42 is started to vacuumize to enable negative pressure to be generated under the geomembrane, so that water in sludge is sucked out and is introduced into the sewage buffer tank 5 through the drainage pipeline 11, the vacuum pump 42 is arranged outside the sludge compression tank 1, the sewage buffer tank 5 is connected with the vacuum pump 42 through the drainage pipeline 12, the sewage buffer tank 5 is a cylindrical iron cylinder, and the bottom of the sewage buffer tank is provided with a drainage valve for draining sewage; the stacking device 6 consists of a loading plate 61 and a concrete block 62 stacked above the loading plate 61, and when the sludge in the compression tank 1 reaches a certain consolidation degree, the stacking device 6 is placed on the geomembrane 41 to further compress the sludge and discharge water, so that the optimal dehydration effect is achieved.
The working principle of the invention adopting the device is as follows:
pouring the sludge into the containing cavity part 311 of the geonet 31 in the compression tank 1, then laying the cover part 312 of the geonet 31 on the upper part of the sludge, laying the geomembrane 41 on the top of the compression tank 1, embedding the periphery of the geomembrane 41 into the soil body on the periphery of the compression tank to seal the compression tank 1, and reserving a certain extensible length for the geomembrane 41 in the compression tank 1 to be used for sludge sinking; starting a vacuum pump 42 for vacuumizing, so that negative pressure is generated below the geomembrane 41, simultaneously applying atmospheric pressure to the geomembrane 41 by external air, sucking out water in sludge in the compression tank 1, filtering the water through a filter layer 2 at the bottom of the compression tank 1, entering a drainage pipeline 11 at the bottom of the tank, introducing sewage into a sewage buffer tank 5 through the drainage pipeline 11 for further discharge, after the sludge in the compression tank 1 is dehydrated to reach a certain consolidation degree, further compressing the sludge by adding a loading device 6 (namely a loading plate 61 and a concrete block 62) on the geomembrane 41, so that the moisture in the sludge is further discharged under the action of additional stress, and after the sludge is dehydrated to the preset consolidation degree, hoisting equipment unloads the loading device 6, hoists a framework 3 filled with the consolidated sludge, and pours the sludge into other transportation equipment for subsequent treatment.
The key point of the invention is that the vacuum pump 42 is fully utilized to form vacuum negative pressure and pressure provided by the stacking device, sludge under the geomembrane is compressed and dehydrated by combined application, moisture in the sludge enters a drainage pipe in the tank through the filter layer 2 and is introduced into the sewage buffer tank 5, and meanwhile, a through system is formed by the vertical drainage pipe arranged in the sludge compression tank and the horizontal drainage pipe, so that the dehydration efficiency is further increased.
Claims (7)
1. The utility model provides a mud vacuum is piled up and is carried joint compression dewatering device which characterized in that: comprises a compression tank, a frame, a vacuum device and a sewage buffer tank; wherein,
the compression tank provides a sludge compression place, and a drainage pipeline is arranged at the bottom in the compression tank and communicated to the sewage buffer tank outside the compression tank; the frame is arranged in the compression tank, the vacuum device is positioned outside the compression tank and comprises a geomembrane and a vacuum pump, the vacuum pump is communicated with the sewage buffer tank, the geomembrane is enabled to seal the compression tank, and the vacuum pump is used for vacuumizing to generate negative pressure under the geomembrane, so that the moisture in the sludge in the compression tank is sucked out and introduced into the sewage buffer tank.
2. The sludge vacuum loading combined compression dewatering device of claim 1, characterized in that: the compression tank is made of reinforced concrete.
3. The sludge vacuum loading combined compression dewatering device of claim 1, characterized in that: and a filter layer is laid at the bottom of the compression tank and consists of a gravel cushion layer, a geogrid and non-woven fabrics.
4. The sludge vacuum loading combined compression dewatering device of claim 1, characterized in that: the frame is formed by welding reinforcing steel bars, a layer of geotechnical net with a filter membrane is fixed on the inner side of the frame, and lifting rings are arranged at the top corners of the frame.
5. The sludge vacuum loading combined compression dewatering device of claim 1, characterized in that: a ballast device may be placed on the geomembrane to further compress the sludge to remove moisture.
6. The sludge vacuum stacking combined compression dewatering device according to claim 5, characterized in that: the stacking device consists of a loading plate and a concrete block.
7. The sludge vacuum loading combined compression dewatering device of claim 1, characterized in that: and a drain valve is arranged at the bottom of the sewage buffer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260811A CN101759342A (en) | 2009-12-09 | 2009-12-09 | Sludge vacuum subcharge combined compressing and dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260811A CN101759342A (en) | 2009-12-09 | 2009-12-09 | Sludge vacuum subcharge combined compressing and dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101759342A true CN101759342A (en) | 2010-06-30 |
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ID=42490748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910260811A Pending CN101759342A (en) | 2009-12-09 | 2009-12-09 | Sludge vacuum subcharge combined compressing and dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101759342A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803773A (en) * | 2014-02-25 | 2014-05-21 | 洛阳高坦机械技术有限公司 | Filter cloth-free vertical compression sludge high-pressure dewatering machine |
| CN107382027A (en) * | 2017-08-21 | 2017-11-24 | 华东师范大学 | A kind of fast dewatering curing for the alum sludge pool |
| CN108046562A (en) * | 2017-12-14 | 2018-05-18 | 惠州东江威立雅环境服务有限公司 | A kind of High water cut oily sludge dehydration device |
| CN108101341A (en) * | 2018-01-12 | 2018-06-01 | 武汉大学 | High speed dewatering of slurries device |
| CN108751670A (en) * | 2018-08-15 | 2018-11-06 | 江苏科技大学 | The quick sludge dewatering treatment system of negative pressure of vacuum agricultural crop straw and method |
| CN111847826A (en) * | 2020-07-31 | 2020-10-30 | 江苏科技大学 | Bottom vacuum negative pressure double-sided rapid sludge dewatering experiment and application system |
-
2009
- 2009-12-09 CN CN200910260811A patent/CN101759342A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803773A (en) * | 2014-02-25 | 2014-05-21 | 洛阳高坦机械技术有限公司 | Filter cloth-free vertical compression sludge high-pressure dewatering machine |
| CN107382027A (en) * | 2017-08-21 | 2017-11-24 | 华东师范大学 | A kind of fast dewatering curing for the alum sludge pool |
| CN108046562A (en) * | 2017-12-14 | 2018-05-18 | 惠州东江威立雅环境服务有限公司 | A kind of High water cut oily sludge dehydration device |
| CN108101341A (en) * | 2018-01-12 | 2018-06-01 | 武汉大学 | High speed dewatering of slurries device |
| CN108751670A (en) * | 2018-08-15 | 2018-11-06 | 江苏科技大学 | The quick sludge dewatering treatment system of negative pressure of vacuum agricultural crop straw and method |
| CN111847826A (en) * | 2020-07-31 | 2020-10-30 | 江苏科技大学 | Bottom vacuum negative pressure double-sided rapid sludge dewatering experiment and application system |
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Open date: 20100630 |