CN204788860U - Damaged leak hunting detecting device of landfill barrier layer - Google Patents

Damaged leak hunting detecting device of landfill barrier layer Download PDF

Info

Publication number
CN204788860U
CN204788860U CN201520521643.0U CN201520521643U CN204788860U CN 204788860 U CN204788860 U CN 204788860U CN 201520521643 U CN201520521643 U CN 201520521643U CN 204788860 U CN204788860 U CN 204788860U
Authority
CN
China
Prior art keywords
detection
sniffer
wheel
push rod
loop bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520521643.0U
Other languages
Chinese (zh)
Inventor
薛强
王华庆
刘凯
刘磊
许越
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.)
Wuhan Institute of Rock and Soil Mechanics of CAS
Original Assignee
Wuhan Institute of Rock and Soil Mechanics of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Institute of Rock and Soil Mechanics of CAS filed Critical Wuhan Institute of Rock and Soil Mechanics of CAS
Priority to CN201520521643.0U priority Critical patent/CN204788860U/en
Application granted granted Critical
Publication of CN204788860U publication Critical patent/CN204788860U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)

Abstract

The utility model relates to a damaged leak hunting detecting device of landfill barrier layer, include: push rod, two telescopic links, two detections are taken turns and the exploring block, the bottom while of push rod and the tip fixed connection of two telescopic links, it sets up another tip at two telescopic links respectively to survey the wheel for two, the outer circumference of surveying the wheel is surveyed the inside of taking turns and is set up conductive parts and conducting solution for the bique ring, the exploring block passes through the wire and communicates with two conductive parts that survey in the wheel respectively. This detecting device can ensure not only that it lands simultaneously to survey the wheel for two, well adapts to the complicated topography of landfill overlying strata, reduces the loss, improves the leak hunting precision, can also reduce the degree of wear of surveying the position, reduces the leak hunting cost, improves leak hunting efficiency, and simultaneously, this detecting device's leak hunting interval is adjustable, reduces the false drop rate, guarantees the leak hunting precision.

Description

A kind of refuse landfill seepage control layer breakage leak detection sniffer
Technical field
The utility model relates to field of environment engineering technology, particularly a kind of refuse landfill seepage control layer breakage leak detection sniffer.
Background technology
The refuse landfill of current China generally adopts density polyethylene film with high as refuse landfill seepage control layer, impervious barrier geomembrane easily produces breakage in transport, construction, use procedure, such as during the artificial lining carrying of landfill yard, laying, because machinery or artificial operation lack of standardization can make lining damaged, and easily leave hole at seam crossing; During runing, sink because ground is uneven, contracting deformation, the reason such as mechanical damage and chemical corrosion can cause density polyethylene film with high seepage.And China's industry and house refuse can be divided into inorganic pollution and organic contamination two kinds by its pollutant chemistry type, inorganic pollutant has prussiate, arsenic, mercury, chromium, cadmium, copper, nickel, nitrite plasma, organic contaminant has agricultural chemicals (DDT, benzene hexachloride etc.), organic chlorine-containing compound, aldehyde, ketone, phenol, polychlorinated biphenyl and aromatic amino compound, high molecular polymer (plastics, synthetic rubber, regenerated fiber), dyestuff etc.Refuse landfill seepage control layer is once occur damaged, underground water and soil will be entered through damaged leak with heavy metal ion and the organic garbage leachate of severe toxicity, the soil and water resources of periphery is polluted, masses' life security around serious harm, therefore refuse landfill seepage control layer breakage leak detection detection problem must attach great importance to.
Sniffer of the prior art generally adopts the two bique sonde configurations shown in accompanying drawing 4, comprising: montant 11, cross bar 12 and two bique probes 13.Two bique probes 13 are separately positioned on the two ends of cross bar 12, and montant 11 is fixedly connected with cross bar 12 is vertical, and operating personnel make this sniffer move on impervious barrier by the montant 11 that rises and falls, and then completes geomembrane leak source exploration work.Because refuse landfill seepage control layer is coated with the soil body or solid waste heap body, height big rise and fall, is limited to orographic factor, and the cross bar 12 of sniffer is difficult to ensure that front and back bique probe 13 lands simultaneously, and easily cause undetected, precision of detecting leak gas is low; Simultaneously, sniffer cross bar 12 size can not regulate, can not meet the demand of different refuse landfill different measuring spacing, precision of detecting leak gas is difficult to ensure, easily occurs flase drop, and in the actual leak detection work confirming refuse landfill breakage, need the superstratum of the thick incomplete dry ground body of the about 30cm of hand excavation or solid waste heap body, workload is large, and flase drop can waste the exploration time greatly, reduce exploration efficiency, incur loss through delay leak detection progress.Sniffer of the prior art is when operating, need manpower to assist to rise and fall, current refuse landfill area is generally in ten thousand square meter ranks, and leak detection speed is slow, and labour intensity is large, simultaneously, two bique probes 13 very easily wear and tear in reality leak detection exploration work, need periodic replacement, have both added leak detection cost, also delay leak detection exploration progress, exploration efficiency is lower.
Utility model content
The utility model provides a kind of refuse landfill seepage control layer breakage leak detection sniffer, solving or partly solving sniffer unreasonable structure in prior art easily produces undetected, detection spacing cannot be adjusted and produce flase drop, and bique probe very easily wearing and tearing increase leak detection cost, reduce the technical matters of leak detection exploration efficiency, achieve and guarantee that two detection wheels land simultaneously, the complicated landform of good conformity refuse landfill superstratum, reduce loss, improve precision of detecting leak gas; Ensure that the leak detection spacing of this sniffer is adjustable, reduce false drop rate, ensure precision of detecting leak gas; Meanwhile, greatly reduce the degree of wear at detection position, reduce leak detection cost, improve the technique effect of leak detection efficiency.
A kind of refuse landfill seepage control layer breakage leak detection sniffer that the utility model provides, the leak detection for refuse landfill seepage control layer is surveyed, and described sniffer comprises: push rod, two expansion links, two detection wheels and exploring blocks; The bottom of described push rod is connected with the end winding support of described two expansion links simultaneously; Described two detection wheels are separately positioned on the other end of described two expansion links; The excircle of described detection wheel is bique ring, and the inside of described detection wheel arranges conductive component and conducting solution; Described exploring block detects the described conductive component in taking turns with described two respectively by wire and is communicated with.
As preferably, described detection wheel is flexibly connected with described expansion link by rotating shaft, and described rotating shaft and described expansion link form revolute pair, and described detection wheel and rotating shaft can rotate around the axis of described rotating shaft;
Described conductive component is copper rod; Described conducting solution is CuSO 45H 2the solution of O crystal;
Wherein, during described leak detection detection system work, described CuSO 45H 2the solution of O crystal constantly oozes out from described bique ring, when moving to leak source position, electric current from leak source ground through described CuSO 45H 2the solution of O crystal flows into described copper rod, and then flow to described exploring block by described wire.
As preferably, the inside of described detection wheel arranges many copper rods;
Described many copper rods are along the radial arrangement of described detection wheel, and described many copper rods angle is between any two identical.
As preferably, described two expansion links are in tilted layout; Described two expansion links are symmetrical arranged about vertical direction;
Described two expansion links are connected the horizontal level of horizontal level higher than described two expansion link other ends of one end with described push rod.
As preferably, described expansion link comprises: loop bar, pole and slip-knot;
Described loop bar inside is hollow-core construction, and one end of described loop bar is fixedly connected with the bottom of described push rod;
The external diameter of described pole is less than the internal diameter of described loop bar; One end of described pole is located in described loop bar, is flexibly connected with described loop bar by slip-knot; The other end of described pole with described detect to take turns be connected;
Wherein, described loop bar and pole form sliding pair, and described pole along the axle center slippage of described loop bar, can realize elongating or shortening of described expansion link then.
As preferably, described push rod is obliquely installed; The top of described push rod is fixedly connected with a lever.
The technical scheme provided in the embodiment of the present application, at least has following technique effect or advantage:
1, be provided with the detection wheel of conducting solution and conductive component owing to have employed inside, detection wheel is movably arranged on the bottom of expansion link by rotating shaft, conductive component is communicated with exploring block by wire; The excircle of detection wheel is bique ring, during the work of this sniffer, operating personnel make detection wheel roll on impervious barrier by push rod, conducting solution in detection wheel is oozed out by bique ring, when detecting wheel and moving to leak source position, electric current flows into conductive component from leak source ground through conducting solution, and then flow to exploring block by wire, completes the exploration of leak source like this.Like this, efficiently solve bique probe very easily wearing and tearing increase leak detection cost in prior art, reduce the technical matters of leak detection exploration efficiency, achieve the rolling friction of detection wheel and impervious barrier, greatly reduce the degree of wear of bique ring, avoid frequent replacing to detect wheel, reduce leak detection cost, improve efficiency of hunting leak; Meanwhile, by the rolling of detection wheel, greatly reduce the labour intensity of operating personnel, improve speed of detection and efficiency.
2, owing to have employed two expansion links be obliquely installed, operating personnel promote push rod makes detection take turns when rolling on impervious barrier, two expansion links tilted form inverted V-shapeds, increase structure by property, can the complicated landform that rises and falls of good adaptation refuse landfill superstratum height; Meanwhile, expansion link can carry out extending and shortening, and ensures that the leak detection spacing of this sniffer is adjustable, the difference leak detection spacing demand of each refuse landfill of adaptation that can be good.Like this, efficiently solving sniffer unreasonable structure in prior art easily produces undetected, detection spacing cannot be adjusted and produce the technical matters of flase drop, achieve and guarantee that two detection wheels land simultaneously, the complicated landform of good conformity refuse landfill superstratum, reduce loss, improve precision of detecting leak gas; Ensure that the leak detection spacing of this sniffer is adjustable, ensure precision of detecting leak gas, reduce false drop rate, the unnecessary leak source confirmation work avoiding flase drop to produce, ensure the technique effect of leak detection progress further.
Accompanying drawing explanation
The configuration diagram of the sniffer that Fig. 1 provides for the first embodiment of the application;
The configuration diagram of the sniffer that Fig. 2 provides for the application's the second embodiment;
The configuration diagram of wheel is detected in the sniffer that Fig. 3 provides for the embodiment of the present application;
Fig. 4 is the configuration diagram of sniffer in prior art;
Fig. 5 carries out the schematic diagram of exploration work for sniffer that the first embodiment of the application provides;
(in figure, the parts of each label representative are followed successively by: 1 lever, 2 push rods, 3 loop bars, 4 slip-knots, 5 poles, 6 detection wheels, 7 bique rings, 8 rotating shafts, 9 conducting solutions, 10 conductive components, 11 montants, 12 cross bars, 13 bique probes, 14 electrodes)
Embodiment
The utility model provides a kind of refuse landfill seepage control layer breakage leak detection sniffer, solving or partly solving sniffer unreasonable structure in prior art easily produces undetected, detection spacing cannot be adjusted and produce flase drop, and bique probe very easily wearing and tearing increase leak detection cost, reduce the technical matters of leak detection exploration efficiency, by arranging two expansion links tilted, and detection wheel is set in the bottom of expansion link, the structure of two expansion link composition inverted V-shapeds, achieve and guarantee that two detection wheels land simultaneously, the complicated landform of good conformity refuse landfill superstratum, reduce loss, improve precision of detecting leak gas, elongating or shortening by expansion link, ensures that the leak detection spacing of this sniffer is adjustable, reduces false drop rate, ensures precision of detecting leak gas, meanwhile, by the rolling of detection wheel, greatly reduce the degree of wear at detection position, reduce leak detection cost, improve the technique effect of leak detection efficiency.
Below in conjunction with accompanying drawing, the utility model is explained in further detail:
A kind of refuse landfill seepage control layer breakage leak detection sniffer that the utility model provides, the leak detection for refuse landfill seepage control layer is surveyed, and see attached Fig. 1 and 2, this sniffer comprises: push rod 2, two expansion links, two detection wheels 6 and exploring block; The bottom of push rod 2 is connected with the end winding support of two expansion links simultaneously; Two detection wheels 6 are separately positioned on the other end of two expansion links; The excircle of detection wheel 6 is bique ring 7, and the inside of detection wheel 6 arranges conductive component 10 and conducting solution 9; By wire, the conductive component 10 detected in wheel 6 is communicated with exploring block with two respectively.
Wherein, during the work of this sniffer, operating personnel make detection wheel 6 roll on impervious barrier by push rod 2, conducting solution 9 in detection wheel 6 is oozed out by bique ring 7, when detecting wheel 6 and moving to leak source position, electric current flows into conductive component 10 from leak source ground through conducting solution 9, and then flow to exploring block by wire, completes the exploration of leak source like this.Detection wheel 6 and the rolling friction of impervious barrier, greatly reduce the degree of wear of bique ring 7, avoids frequent replacing to detect wheel 6, reduce leak detection cost, improve leak detection efficiency; Meanwhile, by detecting the rolling of wheel 6, greatly reducing the labour intensity of operating personnel, improve speed of detection and efficiency.
Further, detection wheel 6 is flexibly connected with expansion link by rotating shaft 8, and rotating shaft 8 and expansion link form revolute pair, detect wheel 6 and rotating shaft 8 can around the shaft 8 axis rotation.
As a kind of preferred embodiment, conductive component 10 is copper rod; Conducting solution 9 is CuSO 45H 2the solution of O crystal; CuSO 45H 2the solution of O crystal can ooze out in bique ring 7.During the work of this sniffer, see accompanying drawing 5, utilize the insulativity of impervious barrier geomembrane (i.e. density polyethylene film with high) and the electric conductivity of percolate or underground water, at density polyethylene film with high, electrode 14 is set respectively up and down, voltage is provided to the upper/lower electrode 14 of density polyethylene film with high respectively by high pressure generator, due to density polyethylene film with high insulation characterisitic, two detection wheels 6 can detect the Potential Distributing on density polyethylene film with high.Concrete principle is: during sniffer work, CuSO 45H 2the solution of O crystal constantly oozes out from bique ring 7, when moving to leak source position, electric current from leak source ground through CuSO 45H 2the solution of O crystal flows into copper rod, and then flow to exploring block by wire.Like this, exploring block can measure the potential value of two detection wheel 6 positions, and then determines leak source position.
Further, see accompanying drawing 3, the inside of detection wheel 6 arranges many copper rods; Many copper rods are along the radial arrangement detecting wheel 6, and many copper rods angle is between any two identical.When can guarantee that detection wheel 6 is rolled to any position by arranging many copper rods, current signal can transmit in time, guarantees that current signal transfer can not postpone, causes flase drop.
Further, two expansion links are in tilted layout; Two expansion links are symmetrical arranged about vertical direction; Two expansion links are connected the horizontal level of horizontal level higher than two expansion link other ends of one end with push rod 2, even if two expansion links tilted form inverted V-shaped structure, increase this sniffer by property, make sniffer can the complicated landform that rises and falls of good adaptation refuse landfill superstratum height; Meanwhile, expansion link can carry out extending and shortening, and ensures that the leak detection spacing of this sniffer is adjustable, the difference leak detection spacing demand of each refuse landfill of adaptation that can be good.
Further, expansion link comprises: loop bar 3, pole 5 and slip-knot 4; Loop bar 3 inside is hollow-core construction, and one end of loop bar 3 is fixedly connected with the bottom of push rod 2; The external diameter of pole 5 is less than the internal diameter of loop bar 3; One end of pole 5 is located in loop bar 3, is flexibly connected with loop bar 3 by slip-knot 4; The other end of pole 5 is connected with detection wheel 6; Wherein, loop bar 3 and pole 5 form sliding pair, and pole 5 along the axle center slippage of loop bar 3, can realize elongating or shortening of expansion link then.
See accompanying drawing 1, as the first embodiment, push rod 2 is vertically arranged.See accompanying drawing 2, as the second preferred embodiment, push rod 2 is obliquely installed; The top of push rod 2 is fixedly connected with a lever 1.The push rod 2 handled easily personnel tilted keep the posture of standing, and operation of avoiding bending over causes physical fatigue, by setting operation handle 1, makes the easy to use of this sniffer.
The technical scheme provided in the embodiment of the present application, at least has following technique effect or advantage:
1, be provided with the detection wheel of conducting solution 9 and conductive component 10 owing to have employed inside, detection wheel 6 is movably arranged on the bottom of expansion link by rotating shaft 8, conductive component 10 is communicated with exploring block by wire; The excircle of detection wheel 6 is bique ring 7, during the work of this sniffer, operating personnel make detection wheel 6 roll on impervious barrier by push rod 2, conducting solution 9 in detection wheel 6 is oozed out by bique ring 7, when detecting wheel 6 and moving to leak source position, electric current flows into conductive component 10 from leak source ground through conducting solution 9, and then flow to exploring block by wire, completes the exploration of leak source like this.Like this, efficiently solve bique probe 13 very easily wearing and tearing increase leak detection cost in prior art, reduce the technical matters of leak detection exploration efficiency, achieve the rolling friction of detection wheel 6 and impervious barrier, greatly reduce the degree of wear of bique ring 7, avoid frequent replacing to detect wheel 6, reduce leak detection cost, improve leak detection efficiency; Meanwhile, by detecting the rolling of wheel 6, greatly reducing the labour intensity of operating personnel, improve speed of detection and efficiency.
2, owing to have employed two expansion links be obliquely installed, operating personnel promote push rod 2 makes detection take turns 6 when rolling on impervious barrier, two expansion links tilted form inverted V-shapeds, increase structure by property, can the complicated landform that rises and falls of good adaptation refuse landfill superstratum height; Meanwhile, expansion link can carry out extending and shortening, and ensures that the leak detection spacing of this sniffer is adjustable, the difference leak detection spacing demand of each refuse landfill of adaptation that can be good.Like this, efficiently solving sniffer unreasonable structure in prior art easily produces undetected, detection spacing cannot be adjusted and produce the technical matters of flase drop, achieve and guarantee that two detection wheels 6 land simultaneously, the complicated landform of good conformity refuse landfill superstratum, reduce loss, improve precision of detecting leak gas; Ensure that the leak detection spacing of this sniffer is adjustable, ensure precision of detecting leak gas, reduce false drop rate, the unnecessary leak source confirmation work avoiding flase drop to produce, ensure the technique effect of leak detection progress further.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (6)

1. a refuse landfill seepage control layer breakage leak detection sniffer, the leak detection for refuse landfill seepage control layer is surveyed, and it is characterized in that, described sniffer comprises: push rod, two expansion links, two detection wheels and exploring blocks; The bottom of described push rod is connected with the end winding support of described two expansion links simultaneously; Described two detection wheels are separately positioned on the other end of described two expansion links; The excircle of described detection wheel is bique ring, and the inside of described detection wheel arranges conductive component and conducting solution; Described exploring block detects the described conductive component in taking turns with described two respectively by wire and is communicated with.
2. sniffer as claimed in claim 1, is characterized in that,
Described detection wheel is flexibly connected with described expansion link by rotating shaft, and described rotating shaft and described expansion link form revolute pair, and described detection wheel and rotating shaft can rotate around the axis of described rotating shaft;
Described conductive component is copper rod; Described conducting solution is CuSO 45H 2the solution of O crystal;
Wherein, during described leak detection detection system work, described CuSO 45H 2the solution of O crystal constantly oozes out from described bique ring, when moving to leak source position, electric current from leak source ground through described CuSO 45H 2the solution of O crystal flows into described copper rod, and then flow to described exploring block by described wire.
3. sniffer as claimed in claim 2, is characterized in that,
The inside of described detection wheel arranges many copper rods;
Described many copper rods are along the radial arrangement of described detection wheel, and described many copper rods angle is between any two identical.
4. sniffer as claimed in claim 1, is characterized in that,
Described two expansion links are in tilted layout; Described two expansion links are symmetrical arranged about vertical direction;
Described two expansion links are connected the horizontal level of horizontal level higher than described two expansion link other ends of one end with described push rod.
5. sniffer as claimed in claim 1, is characterized in that,
Described expansion link comprises: loop bar, pole and slip-knot;
Described loop bar inside is hollow-core construction, and one end of described loop bar is fixedly connected with the bottom of described push rod;
The external diameter of described pole is less than the internal diameter of described loop bar; One end of described pole is located in described loop bar, is flexibly connected with described loop bar by slip-knot; The other end of described pole with described detect to take turns be connected;
Wherein, described loop bar and pole form sliding pair, and described pole along the axle center slippage of described loop bar, can realize elongating or shortening of described expansion link then.
6. sniffer as claimed in claim 1, is characterized in that,
Described push rod is obliquely installed; The top of described push rod is fixedly connected with a lever.
CN201520521643.0U 2015-07-17 2015-07-17 Damaged leak hunting detecting device of landfill barrier layer Expired - Fee Related CN204788860U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520521643.0U CN204788860U (en) 2015-07-17 2015-07-17 Damaged leak hunting detecting device of landfill barrier layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520521643.0U CN204788860U (en) 2015-07-17 2015-07-17 Damaged leak hunting detecting device of landfill barrier layer

Publications (1)

Publication Number Publication Date
CN204788860U true CN204788860U (en) 2015-11-18

Family

ID=54528880

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520521643.0U Expired - Fee Related CN204788860U (en) 2015-07-17 2015-07-17 Damaged leak hunting detecting device of landfill barrier layer

Country Status (1)

Country Link
CN (1) CN204788860U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105181278A (en) * 2015-07-17 2015-12-23 中国科学院武汉岩土力学研究所 Landfill impermeable layer damage leakage-checking detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105181278A (en) * 2015-07-17 2015-12-23 中国科学院武汉岩土力学研究所 Landfill impermeable layer damage leakage-checking detection device

Similar Documents

Publication Publication Date Title
CN207230019U (en) Pipeline rehabilitation robot and system
CN101241092B (en) Garbage landfill seepage area quick detection device
CN105675237A (en) Landfill impervious layer hole detection system and method
CN105181278A (en) Landfill impermeable layer damage leakage-checking detection device
CN205099474U (en) Stake formula permeable reaction wall system of repairing of arc shooting
CN1979152A (en) Double-electrode detection method and apparatus for seepage of seepage-proof layer
CN205954721U (en) Device is buried underground to marine wind power steel -pipe pile lateral soil pressure meter
CN106679735A (en) Multi-water-type real-time monitoring device for mine soil dump site and using method thereof
CN204788860U (en) Damaged leak hunting detecting device of landfill barrier layer
CN106677227A (en) Simple determination method for breakdown time of refuse landfill anti-seepage liner
CN104863189B (en) A kind of damaged leak detection detection system of refuse landfill seepage control layer
CN205607615U (en) Landfill barrier layer leak detecting system
CN107894461B (en) Non-excavation device and method for defect detection of buried concrete member
CN206191281U (en) Double skin duct leakage alarm device
CN213679892U (en) Horizontal well repairing device for polluted underground water
CN219348093U (en) Landfill leak source location detection device
Li et al. Environmental engineering issues induced by abandoned coal mine hidden disasters
CN206841559U (en) A kind of land control engineering mobility-detected car
CN207923112U (en) Ground Settlement Induced by Shield Tunnel Construction point intelligent integral auxiliary monitoring device
CN214748955U (en) Handheld undisturbed soil sampling device under complex terrain environment
CN203114228U (en) Wellhead protecting device for ground water monitoring well
CN204532429U (en) A kind of detachable and that precision is high convergence monitoring is linked up with
CN206794351U (en) It is a kind of to detect and administer the device of soil pollution
CN107606384A (en) A kind of modularization Work machine platform for pipe with small pipe diameter water supply line
CN207734707U (en) A kind of diafiltration liquid precipitate retracting device after waste incineration

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151118

Termination date: 20200717

CF01 Termination of patent right due to non-payment of annual fee