CN105696639B - Riverway sludge comprehensive treatment ship - Google Patents

Riverway sludge comprehensive treatment ship Download PDF

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Publication number
CN105696639B
CN105696639B CN201610114391.9A CN201610114391A CN105696639B CN 105696639 B CN105696639 B CN 105696639B CN 201610114391 A CN201610114391 A CN 201610114391A CN 105696639 B CN105696639 B CN 105696639B
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China
Prior art keywords
cabin
mud
ship
drainage pipe
vacuum
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CN201610114391.9A
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Chinese (zh)
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CN105696639A (en
Inventor
杨俊杰
章雪峰
单玉川
闻卫东
任海刚
郑丽海
傅林峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JIELI CONSTRUCTION GROUP Ltd Co
Zhejiang University Of Technology Engineering Design Group Co Ltd
Detection Technology Co Ltd of ZJUT
Original Assignee
ZHEJIANG JIELI CONSTRUCTION GROUP Ltd Co
Zhejiang University Of Technology Engineering Design Group Co Ltd
Detection Technology Co Ltd of ZJUT
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Application filed by ZHEJIANG JIELI CONSTRUCTION GROUP Ltd Co, Zhejiang University Of Technology Engineering Design Group Co Ltd, Detection Technology Co Ltd of ZJUT filed Critical ZHEJIANG JIELI CONSTRUCTION GROUP Ltd Co
Priority to CN201610114391.9A priority Critical patent/CN105696639B/en
Publication of CN105696639A publication Critical patent/CN105696639A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8833Floating installations
    • E02F3/885Floating installations self propelled, e.g. ship
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92Digging elements, e.g. suction heads
    • E02F3/9256Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9268Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/06Sludge reduction, e.g. by lysis

Abstract

A kind of riverway sludge comprehensive treatment ship, including ship body, piggyback pod is set on the ship body, vacuum sludge treatment cabin and drainage mechanism are additionally provided with the ship body, the drainage mechanism includes vavuum pump, horizontal tube and multigroup vertical drainage pipe, the entrance of the vavuum pump connects with one end of the horizontal tube, be arranged side by side multigroup vertical drainage pipe on the horizontal tube, the through hole for multigroup vertical drainage pipe insertion is provided with the top surface in the vacuum sludge treatment cabin, the vertical drainage pipe is provided with sealing ring with through hole junction.The invention provides the riverway sludge comprehensive treatment ship that a kind of operating efficiency is higher, treatment effect is good.

Description

Riverway sludge comprehensive treatment ship
Technical field
The invention belongs to the training of channel and environmental protection technical field, more particularly to a kind of riverway sludge comprehensive treatment ship.
Background technology
In current training of channel engineering, environmental protection and improvement with reference to river course are generally required, especially in China's water In the water environment treatment engineering in entoilage area, for largely by long-term pollution and the river course of alluvial, lacking a kind of this effective river of row Road dredger.Traditional dredger uses grab type loop wheel machine, and mud is caught from river course, is placed on cargo ship and transports to appointed place Carry out concentration stacking, this processing mode not only causes more serious secondary water pollution grabbing mud process, and mud is aqueous Amount is very big, and transport disposal amount is also big, it is also necessary to larger stockyard, land occupation.
Existing processing riverway sludge also has new technology generation, is such as dehydrated using centrifugal dehydration method, reduces the disposal amount of mud, Appropriation of land is reduced, but the equipment amount of this method needs and power are larger, and when a large amount of disposal, cost is too high, therefore for the moment It is difficult to popularization and application.The useful pumping method of excavation mode for mud, can continuously work, operating efficiency improves a lot, but pump The water of suction is relatively also larger, and subsequent processes are brought with certain difficulty.
The content of the invention
In order to overcome the shortcomings of that the operating efficiency of existing riverway sludge processing mode is relatively low, treatment effect is poor, the present invention Provide the riverway sludge comprehensive treatment ship that a kind of operating efficiency is higher, treatment effect is good.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of riverway sludge comprehensive treatment ship, including ship body, set piggyback pod on the ship body, on the ship body Vacuum sludge treatment cabin and drainage mechanism are additionally provided with, the drainage mechanism includes vavuum pump, horizontal tube and multigroup vertical drainage pipe, The entrance of the vavuum pump connects with one end of the horizontal tube, and be arranged side by side multigroup vertical drainage on the horizontal tube Manage, the through hole for multigroup vertical drainage pipe insertion, the vertical drainage are provided with the top cover in the vacuum sludge treatment cabin Pipe is provided with sealing ring with through hole junction.
Further, the vertical drainage pipe includes metal outer pipe and plastics chimney filter, and the plastics chimney filter is located at the metal The inside of outer tube, it is provided between the plastics chimney filter and metal outer pipe and arranges geotextiles filter bag and metal filter screen from inside to outside.
Further, the vacuum dehydration processing ship also includes vertical drainage pipe undercarriage, and the vertical drainage pipe rises and falls Frame is connected with the hoist cylinder for driving undercarriage to rise and fall, and the vertical drainage pipe undercarriage links with the drainage mechanism.
The processing ship also includes sewerage treatment space, and the outlet of the vavuum pump connects with the import of the sewerage treatment space It is logical.
The processing ship also includes the chain scraper conveyor positioned at the bilge, and the transportation work section of the chain scraper conveyor is successively The bottom in mud cabin to be shipped behind vacuum sludge treatment cabin and dewater treatment.Mud after vacuum dehydration is handled is defeated by carrier bar Machine is sent to be delivered in mud cabin to be shipped.The transportation work section of the chain scraper conveyor covers 1/3 length in the mud cabin to be shipped.
The processing ship also includes mud suction cabin, and the mud sucks freight space in the conveying work in the chain scraper conveyor Make on section, according to conveying direction, be followed successively by mud suction cabin, vacuum sludge treatment cabin and mud cabin to be shipped.
The mud suction inlet in the mud suction cabin inhales the outlet of digging machine structure with submersible, and the submersible inhales digging machine Structure includes spiral mining head casing, hollow screw excavates axle and spiral cutting cutter, and the spiral cutting Cutting tool installation manner is hollow Spiral is excavated on axle, and the hollow screw excavates axle and is connected with power set, and the hollow screw excavates hollow tube one end of axle Connected with negative pressure air mouth, the other end of the hollow tube is connected by connecting tube with negative pressure source of the gas.The spiral cutting cutter The hollow screw at place excavates and is provided with negative pressure air hole on axle, and the spiral cutting cutter is located at the spiral mining head casing It is interior.
The top surface in the vacuum sludge treatment cabin sets closure, and the through hole is provided with the closure.
The present invention technical concept be:To reduce moisture content, so as to reduce mud total amount, it is also necessary to entering the mud behind cabin Handled again.It is more difficult using existing frequently-used centrifugal dehydration technology aboard ship because mud is rich in water in itself, the present invention Fast dewatering processing is carried out to mud using vacuum drainage concretion technology.After mud enters application of vacuum cabin, the mud into cabin Insert multigroup vertical drainage pipe, the spacing between vertical drainage pipe to be advisable no more than 800mm, through seal cover board after pass through water Flat pipe is directly accessed vavuum pump, such as accompanying drawing 2.Vacuum drainage processing is implemented to mud in cabin, handled by high intensity Quick drainage Afterwards, mud can reach the vehicle-mounted degree do not dripped, and be sent to through conveyer belt and entruck and carry away on the bank.
For excavated in training of channel engineering it is inefficient in sludge process and cause river bed harmful substance to water body again Pollution, the present invention using pumping with machine dig be combined by the way of, by bed-silt control in the range of river bed, do not make to turn over thereon and Water body is mixed, and inhales excavation method using submersible, i.e., slips into the digging head of mud in bed-silt, and spiral shell is carried out using mechanical system Rotary rod type excavates mud, while negative pressure air is connected in screw rod, on the one hand can reduce the mud of rotary mining process to Outer diffusion, mud is limited near spiral mining head, on the other hand can improve the lifting speed of mud, using this latent Excavation method, it can also reduce water body and be excavated into mud in body, the overall accumulated amount of mud be reduced from digging end, as shown in Figure 1.
Beneficial effects of the present invention are mainly manifested in:1st, by vacuum dehydration technology application dredger, it is auxiliary to establish vacuum Help the sludge treatment ship for excavating and being combined with silt vacuum dewatering;2nd, the excavation of mud and processing procedure are realized by sensor The real-time control of processing, improve the efficiency of sludge treatment.
Brief description of the drawings
Fig. 1 is the schematic diagram that submersible inhales digging method.
Fig. 2 is vacuum row's consolidation schematic diagram.
Fig. 3 is the schematic diagram of cabin function distribution.
Fig. 4 is vertical vacuum tube configuration schematic diagram.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
1~Fig. 4 of reference picture, a kind of riverway sludge comprehensive treatment ship, including ship body, piggyback pod is set on the ship body 15, it is additionally provided with vacuum sludge treatment cabin 14 and drainage mechanism on the ship body, the drainage mechanism includes vavuum pump 10, horizontal Pipe 9 and multigroup vertical drainage pipe 8, the entrance of the vavuum pump 10 connect with one end of the horizontal tube 9, on the horizontal tube 9 Be arranged side by side multigroup vertical drainage pipe 8, is provided with the top surface in the vacuum sludge treatment cabin 6 for multigroup vertical drainage The through hole that pipe 8 inserts, the vertical drainage pipe 8 are provided with sealing ring with through hole junction.
Further, the vertical drainage pipe 8 includes metal outer pipe 20 and plastics chimney filter 23, and the plastics chimney filter 23 is located at institute The inside of metal outer pipe 20 is stated, is provided between the plastics chimney filter 23 and metal outer pipe 20 and arranges geotextiles filter bag 22 from inside to outside With metal filter screen 21.
Further, the vacuum dehydration processing car also includes vertical drainage pipe undercarriage, and the vertical drainage pipe rises and falls Frame is connected with the hoist cylinder for driving undercarriage to rise and fall, and the vertical drainage pipe undercarriage links with the drainage mechanism.
The processing ship also includes sewerage treatment space 18, the outlet of the vavuum pump 10 and entering for the sewerage treatment space 18 Mouth connection.
The processing ship also includes the chain scraper conveyor 17 positioned at the bilge, the transportation work section of the chain scraper conveyor 17 It is sequentially located at the bottom in mud cabin 16 to be shipped after vacuum sludge treatment cabin 14 and dewater treatment.Mud after vacuum dehydration is handled It is delivered to by chain scraper conveyor 17 in mud cabin 16 to be shipped.The transportation work section of the chain scraper conveyor covers the silt to be shipped 1/3 length of spoil hopper.
The processing ship also includes mud suction cabin 13, and the mud suction cabin 13 is located in the chain scraper conveyor 17 On transportation work section, according to conveying direction, mud suction cabin 13, vacuum sludge treatment cabin 14 and mud cabin to be shipped are followed successively by 17。
The mud suction inlet in the mud suction cabin 13 inhales the outlet of digging machine structure with submersible, and the submersible, which is inhaled, to be dug Mechanism includes spiral mining head casing 4, hollow screw excavates axle 2 and spiral cutting cutter 1, the spiral cutting cutter 1 are installed Excavated in hollow screw on axle 2, the hollow screw excavates axle 2 and is connected with power set, and the hollow screw is excavated in axle 2 Blank pipe one end is connected with negative pressure air hole 3, and the hollow tube other end is connected by connecting tube with negative pressure source of the gas, and the spiral is cut Hollow screw where cutting knife tool 1 excavates and negative pressure air hole 3 is provided with axle 2, and the spiral cutting cutter 1 is located at spiral digging Dig in head casing 4.
The top surface in the vacuum sludge treatment cabin 14 sets closure 11, and the through hole is provided with the closure.
Established on dredger a set of collection environment-friendly type bed-silt digging system, a set of vacuum sludge dewatering consolidation system with And carrying and the sewage disposal system of mud, the ship is turned into a river course, lake silt cleaning and the dredging of river course environment-friendly type flat Platform, as shown in Figure 3, two sets of parallel processing units are installed in figure in hull, when ship type is smaller, can also install one and be arranged It is standby.
The mining head of mud digging system as shown in Figure 1 adds the driving being installed on ship and conveying equipment to form, spiral Cutting tool 1, hollow screw excavate axle 2, negative pressure air hole 3, spiral mining head casing 4, hull bottom 5, negative pressure air direction A and river Bottom mud face B.This set system can adjust mining head casing according to the depth of water and mud depth and spiral excavates shaft length, ensures to excavate Head excavates below mud top layer, and the diameter of mining head determines according to ship type size, and spiral excavates axial length and adds mud more than the depth of water Thickness, the drilling power in mud are provided by supporting dynamical system on ship.The rotation that mud under mining head cutting passes through helical axis Turn thrust and the mud suction cabin 13 being delivered on ship is combined in negative pressure suction.The movement of mining head is real with hull dynamical system It is existing.
Mud cabin side wall patch polytetrafluoroethylene (PTFE) sheet material, with reducing friction resistance;Cabin 13, vacuum sludge treatment are sucked in mud The bottom in mud cabin 16 to be shipped is equipped with chain mat machine behind cabin 14 and dewater treatment, can carry out the mud in different mud cabins directly defeated Send;Pipeline is provided between vavuum pump and bilge tank, the water of vavuum pump discharge is injected to the entrance of sewerage treatment space.
Vertical drainage pipe undercarriage is provided with vacuum sludge treatment cabin top, undercarriage is whole into one with mud cabin closure Body, rising and falling for shelf are hydraulically operated;After pending mud is filled in vacuum mud cabin, shelf falls, vertical drainage pipe Insert in pending mud, while hatchcover is sealed, so that it may start vacuum dehydration processing;Treat that application of vacuum makes it Afterwards, that is, hatchcover is opened, lifts vertical drainage pipe, the hatch door towards mud cabin 16 to be shipped after dewater treatment is opened, starts chain mat machine, Mud after dewater treatment can be delivered to 16 disembarkation to be conveyed of mud cabin after dewater treatment.Vacuum dehydration is mud decrement treatment Critical process, vertical vacuum tube 8 be vacuum drainage main thoroughfare, be made up of bimetallic tube, as shown in Figure 4, outer layer is band Hole steel pipe, inner liner metal screen pack, inner tube are plastic draining chimney filter, overcoat geotechnique's filter cloth bag, inner tube and geotechnological filter cloth bag Can easily it change as needed, to ensure the efficiency of vacuum drainage.The spacing of vertical vacuum drainpipe is with 500mm~800mm It is advisable.
Sewerage treatment space 18 is made up of several subdivisions, according to degree of water pollution, when the sewage in bilge tank is not harmful During material, can simply pass through filter precipitation after be directly discharged into river course, when there is harmful substance, answer specific aim through processing it is up to standard after again It is discharged into river course.
A set of Centralizing inspection control system is also set up on ship, lays underwater camera under water, reflects submerged digging feelings in real time Condition, the vertical propulsion of mining head, the starting of chain mat machine, rising and falling for vertical drainage pipe support uses hydraulic pressure centralized Control.Mud is true Empty dewater treatment is controlled by discharging water, and water ga(u)ge is installed in drainpipe, is discharged water by calculating, is determined mud The reduction situation of water content, it can stop handling when mud water content is less than less than 50%, circulation is handled next time.
Specific embodiments of the present invention are as follows:
Above-mentioned technical scheme need to be adjusted according to Practical Project condition in specific implementation process, below as general Engineering specifications brief description specific embodiment.
1) ship of the present invention is opened to river course, lake where engineering, to engineering specifications, the main depth of water including river course, become silted up Mud thickness, pollution condition are adjusted on the spot, and carry out tentative excavation according to pre-determined arrangement and method for construction, so as to further Examine the depth excavated and excavate form.
2) underwater camera is opened, setting takes mud depth, mining head casing is transferred to muck surface, can use latent Enter depth h=200mm, decentralization spiral mining head to muck surface, open hydraulic drive valve, reach and take mud depth to retreat to silt automatically Mud surface, when silt depth is small and softer, horizontal excavation form can be set, reaching need not retract after taking mud depth, keep deep Degree directly horizontal promote takes mud.
3) while mining head starts to take mud, vavuum pump is opened, and spiral excavates and negative pressure air is connected in axle, negative pressure in axle Being maintained at -50kPa is advisable, and can adjust negative pressure force value according to the size of mud exit water is taken, can be appropriate when water yield is big Negative pressure absolute value is reduced, otherwise can suitably be increased, the water that do not suck in river course as far as possible;Also it can be observed and dug by underwater camera Streamflow regime around pick head casing is adjusted, and pressure should be reduced when obvious flowing in the current direction mining head of casing periphery, Whereas to suitably increase pressure.
4) treat that (mud suction cabin 13 can use with vacuum sludge treatment cabin 14 in the mud in mud suction cabin 13 close full cabin Identical volume of compartment amount) when, the hatch door between mud suction cabin 13 and vacuum sludge treatment cabin 14 is opened, opens chain mat machine 17, will be true Fill mud and close hatch door between two cabins in empty sludge treatment cabin 14;If mud water content is larger, when can not be completely filled up, can first close Hatch door is closed, recycles dredge pump to inhale mud from mud suction cabin 13 and fills vacuum sludge treatment cabin 14.
5) mud water content w in vacuum sludge treatment cabin 14 is quickly determined, decentralization vertical drainage pipe support, compresses sealed compartment Lid, vavuum pump breather valve and draining valve are opened, open water flow measurement sensors and mud face droop sensor, started vacuum and take off Water;Vacuum dehydration pressure is maintained at -90kPa, and sealing dewatering time is by the water rate control discharged, when handled mud water content During less than 50%, it is believed that mud can have vehicle to be transported, and vacuum dehydration processing can stop, and can also count as the following formula Calculate and determine.
(abHw-Q)/ab(H-H1)<0.5
In formula, a, b and H are the length physical dimension in vacuum mud cabin, and w is the moisture content into cabin mud, and Q is vacuum The water of pump discharge;H1For the consolidation deflection of mud in vacuum mud cabin.
6) hatch door between mud cabin 16 to be shipped after vacuum sludge treatment cabin 14 and dewater treatment is opened, opens chain mat machine, will Mud cabin 16 to be shipped is to be shipped after mud after application of vacuum is delivered to dewater treatment;Close at vacuum sludge treatment cabin 14 and dehydration Hatch door after reason between mud cabin 16 to be shipped, the hatch door between mud suction cabin 13 and vacuum sludge treatment cabin 14 is opened, is carried out The vacuum of subsequent cycle mud departs from water process.

Claims (3)

1. a kind of riverway sludge comprehensive treatment ship, including ship body, piggyback pod is set on the ship body, it is characterised in that:Institute State and vacuum sludge treatment cabin and drainage mechanism are additionally provided with ship body, the drainage mechanism includes vavuum pump, horizontal tube and multigroup Vertical drainage pipe, the entrance of the vavuum pump connect with one end of the horizontal tube, are arranged side by side on the horizontal tube described more Vertical drainage pipe is organized, the through hole for multigroup vertical drainage pipe insertion, institute are provided with the top cover in the vacuum sludge treatment cabin State vertical drainage pipe and be provided with sealing ring with through hole junction;The vertical drainage pipe includes metal outer pipe and plastics chimney filter, described Plastics chimney filter is located at the inside of the metal outer pipe, and arrangement geotechnique from inside to outside is provided between the plastics chimney filter and metal outer pipe Cloth filter bag and metal filter screen;The vacuum dehydration processing ship also includes vertical drainage pipe undercarriage, and the vertical drainage pipe rises Fall frame to be connected with the hoist cylinder for driving undercarriage to rise and fall, the vertical drainage pipe undercarriage joins with the drainage mechanism It is dynamic;
The processing ship also includes the chain scraper conveyor positioned at the bilge, and the transportation work section of the chain scraper conveyor is sequentially located at The bottom in mud cabin to be shipped behind vacuum sludge treatment cabin and dewater treatment;
The processing ship also includes mud suction cabin, and the mud sucks freight space in the transportation work area of the chain scraper conveyor Between on, according to conveying direction, be followed successively by mud suction cabin, vacuum sludge treatment cabin and mud cabin to be shipped;The mud sucks cabin Mud suction inlet and submersible inhale the outlet of digging machine structure, the submersible inhale digging machine structure include spiral mining head casing, Hollow screw excavates axle and spiral cutting cutter, and the spiral cutting Cutting tool installation manner is excavated on axle in hollow screw, described hollow Spiral excavates axle and is connected with power set, and hollow tube one end that the hollow screw excavates axle connects with negative pressure air mouth, described The other end of hollow tube is connected by connecting tube with negative pressure source of the gas, and the hollow screw where the spiral cutting cutter is excavated on axle Negative pressure air hole is provided with, the spiral cutting cutter is located in the spiral mining head casing.
2. riverway sludge comprehensive treatment ship as claimed in claim 1, it is characterised in that:The processing ship also includes sewage disposal Cabin, the outlet of the vavuum pump and the inlet communication of the sewerage treatment space.
3. riverway sludge comprehensive treatment ship as claimed in claim 1 or 2, it is characterised in that:The vacuum sludge treatment cabin Top surface sets closure, and the through hole is provided with the closure.
CN201610114391.9A 2016-03-01 2016-03-01 Riverway sludge comprehensive treatment ship Active CN105696639B (en)

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CN105696639B true CN105696639B (en) 2017-12-22

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108824527A (en) * 2018-06-13 2018-11-16 佛山博发智能科技有限公司 A kind of cleaning collection device of riverway sludge
CN110080204A (en) * 2019-04-08 2019-08-02 河海大学 A kind of waste soil original position filler cloth mixing apparatus and construction method
CN112225424A (en) * 2020-09-22 2021-01-15 河海大学 Dredged sludge drying device based on filter pressing principle and drying method thereof

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DE2632334A1 (en) * 1976-07-17 1978-01-26 Bosch Gmbh Robert Pressure relief valve for packing bags - has cylindrical valve seat with opening surrounded by elastic valve sleeve and covered by cap
CN2878519Y (en) * 2005-11-03 2007-03-14 厉奎宣 Dredger
CN201024417Y (en) * 2007-04-13 2008-02-20 中交四航工程研究院有限公司 Super soft soil shallow quick reinforcing system
CN101130952A (en) * 2007-08-01 2008-02-27 汤连生 Packingless fast vacuum prepressing dynamic consolidation method
CN201559798U (en) * 2009-08-19 2010-08-25 林宗仁 Silt and garbage separation boat
CN103388330A (en) * 2013-07-31 2013-11-13 河海大学 Pump drainage type vacuum preloading soft foundation strengthening method
CN203475496U (en) * 2013-08-16 2014-03-12 郑州蓝德环保科技有限公司 Movable river dredging platform
CN204728383U (en) * 2015-07-07 2015-10-28 丁清伟 A kind of hydraulic engineering row's silt device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632334A1 (en) * 1976-07-17 1978-01-26 Bosch Gmbh Robert Pressure relief valve for packing bags - has cylindrical valve seat with opening surrounded by elastic valve sleeve and covered by cap
CN2878519Y (en) * 2005-11-03 2007-03-14 厉奎宣 Dredger
CN201024417Y (en) * 2007-04-13 2008-02-20 中交四航工程研究院有限公司 Super soft soil shallow quick reinforcing system
CN101130952A (en) * 2007-08-01 2008-02-27 汤连生 Packingless fast vacuum prepressing dynamic consolidation method
CN201559798U (en) * 2009-08-19 2010-08-25 林宗仁 Silt and garbage separation boat
CN103388330A (en) * 2013-07-31 2013-11-13 河海大学 Pump drainage type vacuum preloading soft foundation strengthening method
CN203475496U (en) * 2013-08-16 2014-03-12 郑州蓝德环保科技有限公司 Movable river dredging platform
CN204728383U (en) * 2015-07-07 2015-10-28 丁清伟 A kind of hydraulic engineering row's silt device

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