CN111088790A - Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading and sludge dewatering method thereof - Google Patents
Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading and sludge dewatering method thereof Download PDFInfo
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- CN111088790A CN111088790A CN201911255865.1A CN201911255865A CN111088790A CN 111088790 A CN111088790 A CN 111088790A CN 201911255865 A CN201911255865 A CN 201911255865A CN 111088790 A CN111088790 A CN 111088790A
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- drainage plate
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- 239000010802 sludge Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000004746 geotextile Substances 0.000 claims abstract description 37
- 239000004744 fabric Substances 0.000 claims description 47
- 239000004033 plastic Substances 0.000 claims description 27
- 230000018044 dehydration Effects 0.000 claims description 14
- 238000006297 dehydration reaction Methods 0.000 claims description 14
- 239000002689 soil Substances 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000000967 suction filtration Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 208000005156 Dehydration Diseases 0.000 description 12
- 210000002478 hand joint Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
- E02D2300/0007—PVC
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Soil Sciences (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a novel geotextile tube bag sludge dewatering device combined with vacuum preloading and a sludge dewatering method thereof, wherein the novel geotextile tube bag sludge dewatering device comprises a zipper type spliced geotextile tube bag for filling sludge, an annular drainage plate fixing device, a drainage plate hand-shaped joint device capable of being closed, a drainage plate, a nut, a bolt, a vacuum tube, a clamp and a vacuum pump; and a drainage plate fixed by the annular drainage plate fixing device is arranged in the geotechnical pipe bag along the length direction of the geotechnical pipe bag, and the hand-shaped joint device and the vacuum pipe are connected with a vacuum pump positioned outside the geotechnical pipe bag. The invention adopts a zipper type splicing geotextile tube bag structure with a built-in drainage plate, and can be directly spliced and formed on site; by combining the vacuum preloading technology, the drainage plates are pre-embedded in the geotechnical pipe bag, after filling silt, vacuum load is applied through an external vacuum pump, so that the silt in the pipe bag can be quickly dehydrated, the construction efficiency is effectively improved, the time cost is reduced, and meanwhile, the invention can be repeatedly utilized after being cleaned and dried, is environment-friendly and economical, and has better application prospect.
Description
Technical Field
The invention relates to the technical field of geotextile tube bags, in particular to a novel geotextile tube bag sludge dewatering device combined with vacuum preloading. The invention also relates to a sludge dewatering method implemented by the novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading.
Background
In the projects of river channel dredging, ditch and pond dredging and pile foundation hole excavation, a large amount of sludge or slurry is generated. These sludges and slurries often have the characteristics of high water content, large compressibility, strong fluidity and the like, and are difficult to meet the requirements of land transportation, recovery, reutilization and the like. The fluidity of the sludge after the dehydration treatment is reduced, and convenience can be provided for subsequent construction. The geotextile tube is a high-permeability bagged geotextile container woven by polypropylene or polyester and the like. Due to the advantages of large treatment capacity, easy field operation and the like, the method is widely applied to dehydration treatment of river and lake dredging sludge and municipal sludge.
The existing sludge dewatering technology for the geotechnical pipe bags has the following defects: the geotextile tube bag is generally sewn from a high-strength geosynthetic material, the sewing process is complicated, and the geotextile tube bag cannot be secondarily utilized, so that the consumption of the geotextile tube bag material is large, and the economic cost is high. The traditional natural dehydration mode mainly utilizes the self weight of fillers or external loading to dehydrate, free water body seeps out through gaps of geotextiles, dehydration efficiency is low, and damage to pipe bags is large; the sludge is dewatered by adopting the traditional natural dewatering mode, the dewatering period of 1-2 months is usually needed, and the time cost is high.
The invention provides a set of novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading and a using method thereof. Compared with the traditional sludge dewatering method for the geotube bags, the sludge dewatering method for the geotube bags can realize the reutilization of the zipper type spliced geotube bags, is environment-friendly, saves resources, and reduces the economic cost for treating sludge by using the zipper type spliced geotube bags. Meanwhile, the invention combines the vacuum preloading technology, has simple practical operation, can realize quick dehydration on the sludge under the condition that the zipper type spliced soil engineering pipe bags are not damaged, greatly accelerates the engineering progress, and is particularly suitable for the quick dehydration of the pipe bags in the dredging of the river channel.
Disclosure of Invention
In order to solve the defects in the background art, the invention aims to provide a novel geotextile tube bag sludge dewatering device combined with vacuum preloading, which enables geotextile tube bags to be reused and enhances internal active drainage to improve drainage efficiency. The technical problem to be solved by the invention is also to provide a sludge dewatering method implemented by the novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading.
The technical scheme adopted by the invention is as follows: the utility model provides a novel geotechnique's pipe bag silt dewatering device of joint vacuum pre-compaction, includes zipper type concatenation geotechnique's pipe bag, drain bar and the banding drain bar fixing device that is used for filling and irritates silt, the drain bar medial extremity is in zipper type concatenation geotechnique's pipe bag, the outer end is connected with the connection conduction mechanism that is in on zipper type concatenation geotechnique's pipe bag, and connection conduction mechanism passes through vacuum tube and vacuum pump connection, banding drain bar fixing device centers on the drain bar, the bearing is in the banding drain bar fixing device the inner on the drain bar, be provided with silt on the zipper type concatenation geotechnique's pipe bag and fill the mouth of irritating, silt fills through silt and irritates into in the zipper type concatenation geotechnique's pipe bag.
Furthermore, the connecting and conducting mechanism comprises a drainage plate hand-shaped joint device, and a port of the drainage plate is inserted into the drainage plate hand-shaped joint device; the zipper type spliced geotextile tube bag comprises top cloth and base cloth, wherein the top cloth and the base cloth have the same size and are rectangular; the sludge filling port is a plastic filling port arranged on the top cloth; the peripheries of the top cloth and the base cloth are provided with zipper strips which are connected into a whole through a double-end zipper, a first zipper sheet and a second zipper sheet are prefabricated on the outer wall of one opposite side of the first zipper head and the second zipper head, a fixed insertion hole is formed in each zipper sheet, and a zipper locking function is realized by inserting a locking bolt into the insertion hole; a plastic cylinder matched with the hand-shaped joint thread is fixed on the zipper edge on one side of the top cloth.
Furthermore, the material of the annular-belt-shaped drain board fixing device is plastic, the annular-belt-shaped drain board fixing device comprises an outer ring and an inner drain board-shaped sleeve frame, the outer ring and the inner drain board-shaped sleeve frame are fixedly connected through a supporting rod, the diameter of the outer ring is 1.5 times of the width of the drain board, a notch for inserting the drain board is formed in the outer ring, and the drain board is inserted into the inner drain board-shaped sleeve frame from the notch.
Furthermore, the drainage plate hand-shaped joint device is a conversion and fixing component for connecting the internal drainage plate with external vacuum pumping equipment, and comprises a tubular interface and a plate-shaped socket, wherein the tubular interface is provided with a small section of external threads close to the plate-shaped socket end, and the caliber of the interface is the inner diameter of an external vacuum pipe; the plate type socket is hollow inside and is used for inserting the drainage plate.
Further, the drain bar is arranged along the length direction of the zipper type spliced soil engineering pipe bag.
Furthermore, the plastic filling interface and the plastic cylinder on the side of the top cloth are fixed on the top cloth and the bottom cloth by adopting a bolt structure.
Furthermore, the vacuum pipe is a PVC transparent steel wire hose and is connected with a hand-shaped joint and a vacuum pump for pumping moisture of sludge filled in the zipper type splicing geotechnical pipe bag.
Furthermore, the clamp hoops and fixes each connecting interface of the vacuum tube.
The sludge dewatering method implemented by the novel geotechnical pipe bag sludge dewatering device adopting the combined vacuum preloading provided by the invention comprises the following steps:
1) the plastic pouring interface is fixed at the center of the top cloth by adopting at least two groups of bolt structures, and the plastic cylindrical barrel is fixed at the side edge of the top cloth by adopting at least two groups of bolt structures;
2) inserting a drainage plate into a plate-type socket of a drainage plate hand-type joint device, screwing a pipe-type interface of a hand-type joint into a plastic cylindrical barrel on the side edge of the top of the drainage plate for threaded connection after fixing, connecting a pipe orifice exposed outside a geotechnical pipe bag with a vacuum pipe, connecting the other end of the vacuum pipe with a vacuum pump, hooping each connector by a hoop, fixing the drainage plate in the geotechnical pipe bag by using an annular drainage plate fixing device, and preventing the drainage plate from being bent in the suction filtration process;
3) the outer zipper of the soil engineering pipe bag is pulled up, the soil engineering pipe bag is connected into a whole, and a locking bolt is inserted into the insertion hole of the zipper sheet to realize the locking of the zipper;
4) filling silt into the geotechnical pipe bag, switching on a power supply, starting a vacuum pump, applying a vacuum load, and starting the combined action of vacuum preloading and self-weight consolidation to dewater the silt;
5) after dehydration, demolish vacuum tube and vacuum pump, pull out the locking bolt, open the zip fastener, lift and remove a cloth, dig the silt after the dehydration, wash and air-dry geotechnological pipe bag, carry out used repeatedly.
Compared with the prior art, the invention has the beneficial effects that:
1. the zipper type splicing structure is adopted, the operation is simple, the zipper type splicing structure can be directly spliced on site, the construction efficiency can be improved, and the labor cost can be reduced.
2. The invention adopts a zipper type assembled structure, after the dehydration of the sludge is finished, the vacuum tube and the vacuum pump are disassembled, the locking bolt on the zipper is pulled out, the zipper is unzipped, the top cloth is lifted, the pipe bag does not need to be damaged, and the soil body after being treated can be used for the second time by cleaning and air-drying the earthwork pipe bag and the drainage plate fixing device.
3. The built-in drainage plate is used for applying vacuum load after filling sludge, and the built-in drainage plate provides a newly added active internal drainage channel, so that the dehydration of sludge in the pipe bag can be accelerated, and the on-site construction efficiency is effectively improved.
4. The annular-belt-shaped drain bar fixing device is used for fixing the drain bar in the geotextile tube bag, so that the drain bar is prevented from being bent in the suction filtration process or deviating from the center of the geotextile tube bag, and the pumping drainage efficiency is influenced.
Drawings
Fig. 1 is a schematic structural diagram of a novel geotextile tube bag sludge dewatering device combined with vacuum preloading provided by the invention.
Fig. 2 is a schematic view of the construction of the top cloth, base cloth and zipper construction of fig. 1.
FIG. 3 is a schematic view of the structure at the zipper construction of FIG. 2.
Fig. 4 is a schematic view of a locking structure at the zipper of fig. 1.
Fig. 5 is a schematic structural view of the drain board after being inserted into the annular strip-shaped drain board fixing device.
Fig. 6 is a schematic structural view of a drain board hand type joint device.
Fig. 7 is a schematic view of the arrangement of the drainage plates along the length direction of the geotube bag.
Fig. 8 is a schematic structural view of the plastic cylinder fixed by a bolt structure.
In the drawings: 1. splicing the geotextile tube bags in a zipper manner; 2. an annular drainage plate fixing device; 21. an outer ring; 22. an inner drainage plate-shaped sleeve frame; 23. a notch; 3. a drain board hand joint device; 31. a pipe-type interface; 32. a plate-shaped socket; 4. a drain plate; 5. a nut; 6. a bolt; 7. a vacuum tube; 8. clamping a hoop; 9. a vacuum pump; 10. sludge; 11. cloth jacking; 12. base fabric; 13. a zipper strip; 14. a plastic infusion port; 15. a plastic cylindrical barrel; 17. locking the bolt; 18. a first slider; 19. a second slider; 20. and fixing the jack.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-8, the invention relates to a novel vacuum preloading combined geotextile tube bag sludge dewatering device, which comprises a zipper type spliced geotextile tube bag 1 for filling sludge, a drainage plate 4 and an annular drainage plate fixing device 2, wherein the inner end and the outer end of the drainage plate 4 are positioned in the zipper type spliced geotextile tube bag and are connected with a connecting and conducting mechanism positioned on the zipper type spliced geotextile tube bag 1, the connecting and conducting mechanism is connected with a vacuum pump 9 through a vacuum tube 7, the annular drainage plate fixing device 2 surrounds the drainage plate 4, the inner end of the annular drainage plate fixing device 2 is supported on the drainage plate 4, a sludge filling opening is formed in the zipper type spliced geotextile tube bag 1, and sludge is filled into the zipper type spliced geotextile tube bag 1 through the sludge filling opening.
Referring to fig. 2-6, the connecting and conducting mechanism comprises a drain board hand-type connector device 3, and a port of the drain board is inserted into the drain board hand-type connector device 3; the zipper type spliced geotextile tube bag 1 comprises top cloth 11 and base cloth 12, wherein the top cloth 11 and the base cloth 12 have the same size and are rectangular; the sludge filling port is a plastic filling port 14 arranged on the top cloth; the peripheries of the top cloth 11 and the base cloth 12 are all provided with zipper strips 13 which are connected into a whole through a double-end zipper, the outer wall of one opposite side of the first zipper head and the second zipper head is prefabricated with a first zipper sheet 18 and a second zipper sheet 19, the first zipper sheet 18 and the second zipper sheet 19 are both provided with fixed insertion holes 20, and a zipper locking function is realized by inserting locking bolts 17 into the fixed insertion holes 20; a plastic cylinder 15 matched with the hand-shaped joint thread is fixed on the zipper edge at one side of the top cloth.
Referring to fig. 5, the annular-belt-shaped drain board fixing device 2 is made of plastic, the annular-belt-shaped drain board fixing device 2 includes an outer ring 21 and an inner drain board-shaped sleeve frame 22, the outer ring 21 and the inner drain board-shaped sleeve frame 22 are fixedly connected by using a support rod, the diameter of the outer ring is 1.5 times of the width of the drain board, a gap 23 for inserting the drain board is formed in the outer ring, and the drain board is inserted into the inner drain board-shaped sleeve frame 22 from the gap 23. This annular strip drain bar fixing device 2 can make 4 stable draw zipper-type concatenation geotechnological tubular bag 1 centers in of drain bar to protect drain bar 4, avoid it to be buckled.
Referring to fig. 1 and 6, the drainage plate hand joint device 3 is a conversion and fixing component for connecting the internal drainage plate 4 with external vacuum equipment, the drainage plate hand joint device 3 includes a tubular interface 31 and a plate-shaped socket 32, the tubular interface 31 has a small section of external thread near the plate-shaped socket 32, and the caliber of the interface is the internal diameter of the external vacuum tube 7; the plate type insertion opening 32 is hollow inside and used for inserting the drainage plate 4, and the drainage plate 4 is arranged along the length direction of the zipper type splicing earth work pipe bag 1.
Referring to fig. 8, the plastic pouring port and the plastic cylinder on the side of the top cloth are fixed on the top cloth and the bottom cloth by adopting a bolt structure, and the bolt structure comprises a nut 5 and a screw 6.
Referring to fig. 1 and 8, the vacuum pipe 7 is a PVC transparent steel wire hose, and the vacuum pipe 7 is connected to the hand-shaped joint device 3 and a vacuum pump 9 for pumping moisture from sludge filled in the zipper-type spliced geotextile tube bag 1.
Furthermore, the clamp 8 clamps and fixes each connection interface of the vacuum tube.
The sludge dewatering method implemented by the novel geotechnical pipe bag sludge dewatering device adopting the combined vacuum preloading provided by the invention comprises the following steps:
1) the plastic pouring interface 14 is fixed at the center of the top cloth 11 by adopting at least two groups of bolt structures, and the plastic cylindrical barrel 15 is fixed at the side edge of the top cloth by adopting at least two groups of bolt structures;
2) inserting the drainage plate 4 into a plate-type socket 32 of the drainage plate hand-type joint device 3, screwing a pipe-type interface 31 of the hand-type joint device 3 into a plastic cylindrical barrel 15 on the side edge of the top for threaded connection after fixing, connecting a vacuum pipe 7 to a pipe orifice exposed outside the zipper-type spliced geotechnical pipe bag 1, connecting the other end of the vacuum pipe 7 with a vacuum pump 9, hooping each connector by using a hoop 8, fixing the drainage plate 4 in the zipper-type spliced geotechnical pipe bag 1 by using an annular drainage plate fixing device 2, and preventing the drainage plate 4 from being bent in the suction filtration process;
3) the outer zipper of the zipper type spliced soil engineering pipe bag 1 is pulled up, the zipper type spliced soil engineering pipe bag 1 is connected into a whole, and a locking bolt 17 is inserted into a fixed insertion hole 20 of a zipper sheet to realize zipper locking;
4) filling silt into the zipper type spliced earthwork tube bag 1, switching on a power supply, starting a vacuum pump 9, applying vacuum load, and starting the combined action of vacuum prepressing and self-weight consolidation to dewater the silt;
5) after dehydration, demolish vacuum tube 7 and vacuum pump 9, pull out locking bolt 17, open the zip fastener, lift and remove a cloth 11, dig the silt after the dehydration, wash and air-dry zip fastener formula concatenation geotechnological pipe bag 1, carry out used repeatedly.
Claims (9)
1. The utility model provides a novel geotechnique's pipe bag silt dewatering device of joint vacuum pre-compaction which characterized in that: including being used for filling zip fastener formula concatenation geotechnological pipe bag, drain bar and the banding drain bar fixing device of ring of irritating silt, the drain bar medial extremity is in the zip fastener formula concatenation geotechnological pipe bag, the outer end is connected with being in the connection conduction mechanism on the zip fastener formula concatenation geotechnological pipe bag, connects conduction mechanism and passes through vacuum tube and vacuum pump connection, the banding drain bar fixing device of ring centers on the drain bar, the bearing is in the banding drain bar fixing device of ring the drain bar is last, be provided with silt on the zip fastener formula concatenation geotechnological pipe bag and fill the mouth of irritating, and silt fills through silt fills the mouth of irritating and fills in zip fastener formula concatenation geotechnological.
2. The novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 1, characterized in that: the connection and conduction mechanism comprises a drainage plate hand-shaped joint device, and the port of the drainage plate is inserted into the drainage plate hand-shaped joint device; the zipper type spliced geotextile tube bag comprises top cloth and base cloth, wherein the top cloth and the base cloth have the same size and are rectangular; the sludge filling port is a plastic filling port arranged on the top cloth; the peripheries of the top cloth and the base cloth are provided with zipper strips which are connected into a whole through a double-end zipper, a first zipper sheet and a second zipper sheet are prefabricated on the outer wall of one opposite side of the first zipper head and the second zipper head, a fixed insertion hole is formed in each zipper sheet, and a zipper locking function is realized by inserting a locking bolt into the insertion hole; a plastic cylinder matched with the hand-shaped joint thread is fixed on the zipper edge on one side of the top cloth.
3. The novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 2, characterized in that: the material of the annular-belt-shaped drain board fixing device is plastic, the annular-belt-shaped drain board fixing device comprises an outer ring and an inner drain board-shaped sleeve frame, the outer ring and the inner drain board-shaped sleeve frame are fixedly connected through a supporting rod, the diameter of the outer ring is 1.5 times of the width of the drain board, a notch for inserting the drain board is formed in the outer ring, and the drain board is inserted into the inner drain board-shaped sleeve frame from the notch.
4. The novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 3, wherein: the manual joint device of the drainage plate is a conversion and fixing component for connecting the internal drainage plate with external vacuum pumping equipment, and comprises a tubular interface and a plate-type socket, wherein the tubular interface is provided with a small section of external threads close to the plate-type socket end, and the caliber of the interface is the inner diameter of an external vacuum pipe; the plate type socket is hollow inside and is used for inserting the drainage plate.
5. The novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 1, 2, 3 or 4, wherein: the drain bar is arranged along the length direction of the zipper type spliced soil engineering pipe bag.
6. The novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 2, 3 or 4, wherein the plastic filling interfaces and the plastic cylindrical cylinders at the side edges of the top cloth are fixed on the top cloth and the base cloth by adopting a bolt structure.
7. The novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 2, 3 or 4, wherein: the vacuum pipe is a PVC transparent steel wire hose and is connected with a hand-shaped joint and a vacuum pump for pumping moisture of sludge filled in the zipper type spliced soil engineering pipe bag.
8. The novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 1, 2, 3 or 4, wherein: the clamp hoops and fixes each connecting interface of the vacuum tube.
9. A sludge dewatering method implemented by the novel geotextile tube bag sludge dewatering device combined with vacuum preloading according to claim 1, 2, 3 or 4 comprises the following steps:
1) the plastic pouring interface is fixed at the center of the top cloth by adopting at least two groups of bolt structures, and the plastic cylindrical barrel is fixed at the side edge of the top cloth by adopting at least two groups of bolt structures;
2) inserting a drainage plate into a plate-shaped socket of a drainage plate hand-shaped joint device, screwing a pipe-shaped joint of a hand-shaped joint into a plastic cylindrical barrel on the side edge of the top for threaded connection after fixing, connecting a pipe orifice exposed outside a zipper-type spliced geotechnical pipe bag with a vacuum pipe, connecting the other end of the vacuum pipe with a vacuum pump, hooping each connector by using a hoop, fixing the drainage plate in the zipper-type spliced geotechnical pipe bag by using an annular drainage plate fixing device, and preventing the drainage plate from being bent in the suction filtration process;
3) pulling a zipper on the outer zipper of the zipper type spliced soil engineering pipe bags, connecting the zipper type spliced soil engineering pipe bags into a whole, and inserting a locking bolt into an insertion hole of a zipper sheet to realize zipper locking;
4) filling silt into the zipper type spliced geotextile tube bags, switching on a power supply, starting a vacuum pump, applying a vacuum load, and starting the combined action of vacuum prepressing and self-weight consolidation to dewater the silt;
5) after dehydration, demolish vacuum tube and vacuum pump, pull out the locking bolt, open the zip fastener, lift and remove a cloth, dig the silt after the dehydration, wash and air-dry zip fastener formula concatenation geotechnological pipe bag, carry out used repeatedly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255865.1A CN111088790A (en) | 2019-12-10 | 2019-12-10 | Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading and sludge dewatering method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255865.1A CN111088790A (en) | 2019-12-10 | 2019-12-10 | Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading and sludge dewatering method thereof |
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| CN111088790A true CN111088790A (en) | 2020-05-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074877A (en) * | 2019-12-10 | 2020-04-28 | 浙江工业大学 | Reusable zipper type soil engineering pipe bag with multiple water discharge paths and use method thereof |
| CN112323759A (en) * | 2020-09-21 | 2021-02-05 | 温州大学 | Flocculation-horizontal drainage plate vacuum preloading combined multilayer sealing geotextile bag sludge treatment technology and sludge rapid treatment method |
| CN113322932A (en) * | 2021-04-22 | 2021-08-31 | 温州大学 | Method for reinforcing foundation by piling load through combination of vacuum preloading and geomembrane bag device |
| CN114163097A (en) * | 2021-10-18 | 2022-03-11 | 浙江工业大学 | Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading and slurry dewatering method |
| CN115057598A (en) * | 2022-06-07 | 2022-09-16 | 中交四航工程研究院有限公司 | Sludge positive and negative pressure dewatering system and method |
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| JP2011115690A (en) * | 2009-12-02 | 2011-06-16 | Shinshu Univ | Method and apparatus for dewatering and reducing volume of bagged sludge |
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| CN111074877A (en) * | 2019-12-10 | 2020-04-28 | 浙江工业大学 | Reusable zipper type soil engineering pipe bag with multiple water discharge paths and use method thereof |
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| CN113322932A (en) * | 2021-04-22 | 2021-08-31 | 温州大学 | Method for reinforcing foundation by piling load through combination of vacuum preloading and geomembrane bag device |
| CN113322932B (en) * | 2021-04-22 | 2022-04-01 | 温州大学 | Method for reinforcing foundation by piling load through combination of vacuum preloading and geomembrane bag device |
| CN114163097A (en) * | 2021-10-18 | 2022-03-11 | 浙江工业大学 | Novel geotechnical pipe bag sludge dewatering device combined with vacuum preloading and slurry dewatering method |
| CN115057598A (en) * | 2022-06-07 | 2022-09-16 | 中交四航工程研究院有限公司 | Sludge positive and negative pressure dewatering system and method |
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