CN202766396U - Device for reinforcing sludge dewatering effect of geotube - Google Patents
Device for reinforcing sludge dewatering effect of geotube Download PDFInfo
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- CN202766396U CN202766396U CN 201220055156 CN201220055156U CN202766396U CN 202766396 U CN202766396 U CN 202766396U CN 201220055156 CN201220055156 CN 201220055156 CN 201220055156 U CN201220055156 U CN 201220055156U CN 202766396 U CN202766396 U CN 202766396U
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- tube bag
- geotextile tube
- geotube
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- negative electrode
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Abstract
The utility model provides a device for reinforcing the sludge dewatering effect of a geotube. The device comprises a metering pump, a pipeline mixer, and an electroosmosis and geotube combined device, wherein vertical struts are uniformly arranged on four sides of a rectangle to form supports for the electroosmosis and geotube combined device and are uniformly provided with buckles; horizontal struts are uniformly fixed on the vertical struts by the buckles; the electroosmosis and geotube combined device is provided with an anode which is made of a graphite material and a cathode which is a PVC (polyvinyl chloride) tube wound with copper wires; small holes are uniformly formed in the PVC tube, and a layer of filtering fabrics are wrapped outside the PVC tube; the lower ends of a positive electrode and a negative electrode are wrapped with rigid insulation materials and the top ends of the electrodes are fixed with two small sections of hollow insulating thin tubes respectively; a wire is communicated with the electrodes through the insulating thin tubes; and the anode and the cathode are connected in parallel with the positive and the negative electrodes of an adjustable direct current power supply. The dewatering efficiency of the geotube is improved effectively due to the addition of flocculants and the adoption of electroosmosis; and a vertical geotube occupies a small floor area, is reusable and saves the dewatering cost.
Description
Technical field
The invention belongs to the sludge reduction processing technology field, relate to a kind of geotextile tube bag that adopts with the device of municipal sludge or the dehydration of storehouse, lake riverway sludge, relate in particular to adopt and add flocculation agent, the device of geotextile tube bag dehydrating effect is strengthened in osmosis.
Background technology
The quantity increasing year by year of wastewater treatment in China factory and sewage works, the sludge quantity of supervening also increases severely with day, except the excess sludge that sewage disposal produces, the amount of sludge that the dredging desilting engineering in China's city river, lake every year produces is up to more than 7,000 ten thousand tons, and how processing fast and effectively these mud that produce becomes and need a urgent problem that solves.The investigator has done a large amount of research to the sludge dewatering minimizing both at home and abroad; geotextile tube bag dehydration technique is low with its cost; treatment capacity is large; easy-operating advantage; be subject to the very large attention of environment protection circle; many successful application cases are also arranged at home, administer engineering, Sand lake improvement engineering etc. such as middle nascent state city sewage reservoir.But the liquid Seepage flow time is long during the dehydration of geotextile tube bag, and moisture percentage in sewage sludge will reach below 60% in the pipe bag, needs the time of dehydrating and curing longer, and minimum needs are more than ten days.If the pressure that improves in the pipe bag increases filtration velocity, pipe bag ultimate compression strength need to increase a lot of, must select the higher starting material of cost, causes the raising of pipe bag cost.
Realize sludge dewatering by modes such as mechanical dehydration, gravity centrifugal force dehydrations, can only remove the free water in the mud, but mud still has very high water content, mainly formed by planar water, volume is still larger, transportation is disposed inconvenient, electroosmotic dewatering is combined with the dehydration of geotextile tube bag, can remedy the deficiency of geotextile tube bag dehydration, accelerate its dewatering efficiency, the planar water in the mud kapillary can be effectively removed in osmosis, and the Electro-osmotic drag coefficients of mud is far above hydraulic permeability coefficient, and osmosis is a kind of efficient dewatering.At present electric osmose dehydration often combines with mechanical dehydration, can improve the dehydrating effect of mechanical dehydration, but treatment capacity is less, and facility investment is large, and processing cost is high.Osmosis is combined with the geotextile tube bag, and in mud, add first the dewatering that flocculation agent improves mud, increase the conductivity of mud, can greatly shorten the dewatering time of geotextile tube bag dehydration, improve dewatering efficiency, make simultaneously electroosmotic dewatering can be applied to the dehydration of large area high moisture percentage mud.
Summary of the invention
The purpose of this invention is to provide a kind of dewatering efficiency high, the sludge dehydration device that processing cost is low has solved geotextile tube bag dehydration consuming time, the shortcoming that the geotextile tube bag can not reuse.
Technical scheme of the present invention is:
A kind of device of strengthening the dehydration of geotextile tube bag, it is characterized in that: comprise volume pump, flocculation agent storage tank, line mixer and electric osmose and geotextile tube bag associated plant, described electric osmose and support set-up mode in the geotextile tube bag associated plant are that four jiaos at rectangle arrange four vertical pillars, then four limits evenly arrange plumb post every 50cm, evenly be provided with buckle every 50cm on the pillar, horizontal strut evenly is fixed on the plumb post by buckle, and horizontal strut is spaced apart 50cm; Anode in described electric osmose and the geotextile tube bag associated plant is graphite material, negative electrode is for twining the pvc pipe of copper wire, have uniformly aperture on the pvc pipe, and at pipe outsourcing last layer filtration fabrics, the lower end of anodic-cathodic superscribes hard insulating material, and electrode tip is fixed with the hollow tubule of a bit of insulation, and passes geotextile tube bag top, electric wire is communicated with electrode by the insulation tubule, and negative electrode and anode are respectively and be connected to the positive and negative electrode of adjustable DC power supply.
Described a kind of reinforcement geotextile tube bag sludge dehydration device, it is characterized in that: the set-up mode of anodic-cathodic is every 80～200cm a Graphite Electrodes to be set on the rectangular centre line, from alignment rectangle two ends, center every 80～200cm anodic-cathodic arranged in a crossed manner.
For achieving the above object, the present invention combines sludge flocculation, osmosis and the dehydration of geotextile tube bag, and concrete step is:
(1) add flocculation agent, adopt volume pump to add flocculation agent in transfer line, and mix through the line mixer that is right after thereafter, flocculation agent not only can be assembled dehydration by accelerate sludge, and follow-up mud conductivity is increased.
(2) inject mud, injected by geotextile tube bag upper opening through mixed mud, when liquid level reaches the top of geotextile tube bag, stop to inject, liquid level rises gradually geotextile tube bag internal pressure is increased gradually, and the moisture in the mud is by after flowing out in the geotextile tube bag, and the liquid level in the geotextile tube bag can reduce gradually, repeat to inject mud this moment in the geotextile tube bag, repeat to inject 3～5 times and get final product.
(3) electroosmotic dewatering, after 1～3h is finished in last injection, open osmosis equipment, mud in the geotextile tube bag is carried out the electric osmose dehydration, positive and negative electrode in the osmosis connects the adjustable DC Power supply, reduction with mud moisture content in the treating processes increases voltage, continue outage after 15～20 hours conduction time, power-off time was less than 15 hours, positive and negative electrode short circuit during outage, with the electric charge of releasing, the artificial geotextile tube bag of patting when outage, accelerate dehydration and make negative electrode mud loosening, follow-up energising dehydration is easily carried out.
The implementation step of osmosis and geotextile tube bag associated plant comprises:
(1) lay layer of displacement: lay an impermeable layer at smooth ground, at impermeable layer vertical pillar is set, then lay layer of displacement, layer of displacement is installed horizontal strut after laying and finishing.
(2) combination geotextile tube bag and laying electrode: lay a rectangle geotextile at layer of displacement; and graphite anode is set on geotextile and twines the pvc pipe negative electrode of copper wire; have uniformly aperture on the pvc pipe, and at pipe outsourcing last layer filtration fabrics, prevent from stopping up aperture and protection copper electrode.Every 80～200cm a Graphite Electrodes is set on the rectangular centre line, every 80～200cm anodic-cathodic arranged in a crossed manner, the electrode bottom is passed horizontal geotextile and is fixed on the layer of displacement from alignment rectangle two ends, center.After laying electrode, the upright geotextile tube bag of rectangle that five faces are sewed it up places in the support in naturally vertical mode, the top is fixed on the hook on the support, upright geotextile tube bag bottom contacts with the geotextile of level laying and lap is arranged, step up with lap folding two foldings and with mechanical clamp, make it close and orthogonal.
(3) dismounting geotextile tube bag, dehydration subtracts to hold and is solidified into solid under osmosis and natural gravity effect, reach the expection dehydrating effect after, release mechanism anchor clamps, and utilize facility that upright geotextile tube bag pull-up is broken away from sewage sludge solid.
(4) remove solid, utilize facility that solid is removed, note not damaging electrode, electrode, geotextile tube bag water can reuse after rinsing well.
In described electrode and geotextile tube bag associated plant, that layer of displacement is arranged to area greater than the rectangle of horizontal geotextile tube bag, adopt the good and hard grating particulate matter of water-permeable to consist of, lay horizontal soil worker cloth at the rectangle layer of displacement, be provided with water that drainage pipeline will deviate from around the layer of displacement and compile and enter river course or sewage work.
In described electrode and geotextile tube bag associated plant, the negative electrode pvc pipe has the water shoot effect, and flatly worker's cloth is passed in the bottom of negative electrode and positive electrode, be fixed on the layer of displacement, the geotextile on top is passed on the top, the anode negative electrode is connected in parallel respectively, and identical with the anode and cathode of direct supply.
In described electrode and geotextile tube bag associated plant, need to repeat to inject mud, after moisture flows out from the rectangular pipe bag, liquid level can descend, and repeat to inject mud this moment, repeats to inject 3～5 times and get final product, before not filling with, the geotextile tube bag do not need energising, after last injection mud is finished 1～3h, the beginning plugged, the regulation range of voltage is at 20～60V.
Because geotextile tube bag of the present invention is vertical type, the pressure that mud in the geotextile tube bag bears is larger, accelerate oozing out the time of the interior liquid of geotextile tube bag, add simultaneously electro-osmotic effects, negative electrode also has drainage, has greatly shortened the dewatering time of geotextile tube bag, and treatment capacity does not reduce when raising the efficiency, the place that vertical type geotextile tube bag takies is less, has saved the space.
Description of drawings
Fig. 1 is the schematic flow sheet of sludge dewatering
Fig. 2 is the schematic diagram of electric osmose and geotextile tube bag associated plant
Fig. 3 is the layout drawing of electrode in the geotextile tube bag
Slush pump 1, volume pump 2, flocculation agent storage tank 3, line mixer 4, electric osmose and geotextile tube bag associated plant 5, waterproof membrane 6, layer of displacement 7, mechanical clamp 8, support 9, geotextile tube bag 10, negative electrode 11, anode 12, hook 13, direct supply 14
Embodiment
Embodiment 1
A kind of device of strengthening the sludge dewatering of geotextile tube bag comprises slush pump 1, volume pump 2, flocculation agent storage tank 3, line mixer 4, osmosis and geotextile tube bag associated plant 5, and the step of this osmosis and geotextile tube bag associated plant comprises:
1, lay layer of displacement: on smooth closely knit ground, lay a waterproof membrane 6, support 9 is fixed on the ground, the set-up mode of support is that four jiaos at rectangle arrange four vertical pillars, then four limits evenly arrange plumb post every 50cm, evenly be provided with buckle every 50cm on the pillar, after vertical pillar sets, lay the good and solid particulate matter of water-permeable as layer of displacement 7 at waterproof membrane, thickness is 40～60cm, laid layer of displacement, horizontal geotextile is laid on the waterproof layer, horizontal strut evenly is fixed on the plumb post by buckle, and horizontal strut is spaced apart 50cm, after pillar sets, thrust-augmenting nozzle and water shoot are set around the waterproof membrane, and the sewage discharge that mud is deviate from is to sewage work or directly discharge.
2, combination geotextile tube bag and laying electrode: on the horizontal geotextile that lays, be evenly arranged negative electrode 11 and positive electrode 12, arrangement mode is seen Fig. 3, every electrode space 100cm, the lower end of anodic-cathodic superscribes hard insulating material, the bottom is passed horizontal geotextile and is fixed on layer of displacement 7, and wrapped with insulation length is advisable for just exposing horizontal geotextile tube bag.After electrode fixes, the geotextile tube bag 10 that to make with mechanical implement vertically puts down, and the top is fixed by the hook that is evenly arranged on the plumb post, makes the pipe bag can keep vertical flattened state, bottom and level geotechnique are furnished with lap roll over two foldings, with mechanical clamp 8 along arround fixing.Electrode tip is fixed with the hollow tubule of a bit of insulation, and passes geotextile tube bag top, and electric wire is communicated with electrode by the insulation tubule, and with negative electrode 11 and anode 12 respectively and be connected to the positive and negative electrode of adjustable DC power supply 14.Geotextile tube bag top is provided with the mud import, can with the airtight combination in sludge carrier pipe road.
3, inject mud: by slush pump 1 transmission, volume pump 2 adds flocculation agent, and is injected in the geotextile tube bag behind line mixer 4 with the mud slurries, after geo-tube filling is full, stop filling, after the moisture in mud flows out, the space can be vacated in geotextile tube bag top, continues filling this moment.Repeat filling 3～5 times, finish filling.
4, electric osmose dehydration: after filling is finished one hour, connect adjustable DC power supply 14, the regulation range of voltage is at 20～60 volts, adopts first during beginning after the low voltage along with mud resistance in the pipe bag increases, and increases gradually voltage.After energising 18 hours, cut off the power supply 14 hours, when cutting off the power supply with the anode and cathode short circuit under, drain the electric charge of accumulation, and pat the geotextile tube bag, accelerate the dehydration of geotextile tube bag, moisture in the mud is discharged under the dual function of gravity and osmosis fast, and water ratio can drop to below 60% after 7 days.
5, dismounting geotextile tube bag: after moisture percentage in sewage sludge reaches requirement, mechanical clamp 8 is unclamped, with drawing on the geotextile tube bag of mechanical implement with five closures in top, make it break away from the soil body, then the support frame is removed, after support is removed, carefully remove dewatered solid with utensil, electrode is taken out.Can repeat aforementioned combination step, recycling vertical type geotextile tube bag and electroosmotic dehydration device.
Claims (2)
1. strengthen geotextile tube bag sludge dehydration device for one kind, it is characterized in that: comprise volume pump, flocculation agent storage tank, line mixer and electric osmose and geotextile tube bag associated plant, described electric osmose and support set-up mode in the geotextile tube bag associated plant are that four jiaos at rectangle arrange four vertical pillars, then four limits evenly arrange plumb post every 50cm, evenly be provided with buckle every 50cm on the pillar, horizontal strut evenly is fixed on the plumb post by buckle, and horizontal strut is spaced apart 50cm; Anode in described electric osmose and the geotextile tube bag associated plant is graphite material, negative electrode is for twining the pvc pipe of copper wire, have uniformly aperture on the pvc pipe, and at pipe outsourcing last layer filtration fabrics, the lower end of anodic-cathodic superscribes hard insulating material, and electrode tip is fixed with the hollow tubule of a bit of insulation, and passes geotextile tube bag top, electric wire is communicated with electrode by the insulation tubule, and negative electrode and anode are respectively and be connected to the positive and negative electrode of adjustable DC power supply.
2. a kind of reinforcement geotextile tube bag sludge dehydration device according to claim 1, it is characterized in that: the set-up mode of anodic-cathodic is every 80～200cm a Graphite Electrodes to be set on the rectangular centre line, from alignment rectangle two ends, center every 80～200cm anodic-cathodic arranged in a crossed manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220055156 CN202766396U (en) | 2012-02-21 | 2012-02-21 | Device for reinforcing sludge dewatering effect of geotube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220055156 CN202766396U (en) | 2012-02-21 | 2012-02-21 | Device for reinforcing sludge dewatering effect of geotube |
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| Publication Number | Publication Date |
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| CN202766396U true CN202766396U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220055156 Expired - Lifetime CN202766396U (en) | 2012-02-21 | 2012-02-21 | Device for reinforcing sludge dewatering effect of geotube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640450A (en) * | 2018-05-29 | 2018-10-12 | 河海大学 | A kind of original position silt sludge synchronization dehydration decontamination soilization disposition soil engineering bag combination unit |
-
2012
- 2012-02-21 CN CN 201220055156 patent/CN202766396U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640450A (en) * | 2018-05-29 | 2018-10-12 | 河海大学 | A kind of original position silt sludge synchronization dehydration decontamination soilization disposition soil engineering bag combination unit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300467, Tianjin, Tianjin new eco city road, creative building, building 5, seven floor Patentee after: Tianjin Ecology City Environmental Protection Co., Ltd. Patentee after: TIANJIN XINSHENG ENVIRONMENT DEVELOPMENT CO., LTD. Address before: 300467, Tianjin, Tianjin new eco city road, creative building, building 5, seven floor Patentee before: Tianjin Ecology City Environmental Protection Co., Ltd. Patentee before: Tianjin Ecology City Water Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130306 |
|
| CX01 | Expiry of patent term |