CN110127964A - A kind of dredging of brooks and small lakes and device for treating sludge - Google Patents
A kind of dredging of brooks and small lakes and device for treating sludge Download PDFInfo
- Publication number
- CN110127964A CN110127964A CN201910346682.4A CN201910346682A CN110127964A CN 110127964 A CN110127964 A CN 110127964A CN 201910346682 A CN201910346682 A CN 201910346682A CN 110127964 A CN110127964 A CN 110127964A
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- Prior art keywords
- mud
- brooks
- sludge
- small
- level
- Prior art date
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Links
- 239000010802 sludge Substances 0.000 title claims abstract description 37
- 238000005086 pumping Methods 0.000 claims abstract description 17
- 238000012216 screening Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 15
- 239000003381 stabilizer Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 8
- 239000007790 solid phase Substances 0.000 claims description 7
- 239000007791 liquid phase Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 239000005416 organic matter Substances 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- 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
-
- 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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- 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
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
- E02F3/9268—Active 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
The present invention relates to a kind of dredging of brooks and small lakes and device for treating sludge, the processing equipment includes small-sized strand suction box and includes sludge treatment case, the small-sized strand suction box include underwater operation underwater perturbed system and float on the pumping mud system waterborne of water surface, the sludge treatment case includes level-one screening plant, secondary treatment equipment, card slot transmitting device and three-level mixing plant, the level-one screening plant is located at secondary treatment equipment top, and dewatered sludge is sent to three-level mixing plant by card slot transmitting device by the secondary treatment equipment；The technical solution solves the problems, such as that dredging hull cannot be introduced into brooks and small lakes water body and carry out Sediment Dredging work.
Description
Technical field
The present invention relates to a kind of processing equipments, and in particular to a kind of dredging of brooks and small lakes and device for treating sludge belong to river
The technical field of water pollution treatment in road, lake.
Background technique
Large-scale dredging equipment, dredging ship are also substantially in the extensive dredging work of harbour, navigation channel or great rivers
Middle utilization, and with being more limited in medium and small channel cleanout dredging work, in this regard, common method is to drain dredging.But
Due to the flowing water in river to be drained, then need to build temporary diversion engineering, it is relatively uneconomical, and also many rivers can only be
Non-flood period is constructed, and the duration is subject to certain restrictions, and work progress is influenced vulnerable to weather, and is easy to Channel slope and ecosystem
System has some impact on.Therefore middle and small river dredging engineering in general does not have most suitable dredging equipment to construct.
With the development of dredging work, a large amount of dredging silt can be all generated.Dredging silt mainly with fine grained soil based on,
Rich in organic matter (N, P and organic matter) and each pollutant (heavy metal and organic pollutant), in addition the disturbance of ship dredging construction, becomes silted up
Mud is usually broken up the slurry condition to form high-moisture percentage, belongs to the solid waste of high-moisture percentage in itself.If can be by its turn
The good engineering earth of engineering properties is turned to, and difference pollutant that may be present in mud is handled, it will help is real
Existing the effective of mud, safe, resource utilization.
Summary of the invention
The present invention exactly aiming at the problems existing in the prior art, provides a kind of dredging of brooks and small lakes and sludge treatment is set
Standby, which solves the problems, such as that dredging hull cannot be introduced into brooks and small lakes water body and carry out Sediment Dredging work.
To achieve the goals above, technical scheme is as follows, a kind of dredging of brooks and small lakes and device for treating sludge,
It is characterized in that, the processing equipment includes small-sized strand suction box and sludge treatment case, the small-sized strand suction box is included in underwater
The underwater perturbed system of operation and the pumping mud system waterborne for floating on water surface, the sludge treatment case include that level-one screening is set
Standby, secondary treatment equipment, card slot transmitting device and three-level mixing plant, the level-one screening plant are located at secondary treatment equipment
Dewatered sludge is sent to three-level mixing plant by card slot transmitting device by top, the secondary treatment equipment.
As an improvement of the present invention, the underwater perturbed system bottom four corners are equipped with self-action telescopic fixing rod,
Bottom center is equipped with self-action telescopic environment-friendly reamer, and four side of bottom is equipped with idler wheel, the control of telescopic environment-friendly reamer and idler wheel
Body processed is located at underwater perturbed system centre, the control volume wrapped up using waterproof material and with fixed link, reamer and idler wheel
It is connected.
As an improvement of the present invention, the pumping mud system side waterborne, which is equipped with, takes out mud head, passes through extraction mud pipe and inside
A slush pump be connected, take out and hydraulic stem be installed on mud head, for adjusting slush pump position, become silted up convenient for drawing different depth
Mud is equipped with quick reamer inside the pumping mud head, prevents from blocking pipeline, the slush pump other side and sludge pipe phase compared with bigger material
Even, for mud to be discharged into dredging tube.
As an improvement of the present invention, in the level-one screening plant equipped with the different vibrosieve of multiple partial sizes every
Multiple batch oxidation agent sprinkling locks are arranged in plate, the top of the vibrosieve partition and side wall and stabilizer sprays lock.According to
The different pollutant characteristics contained in mud, generally heavy metal pollution, organic contamination and combined pollution.If only by heavy metal
Pollution then can only open the stabilizer sprinkling lock；If being only polluted by organic matter or combined pollution, need first to open oxidant
Lock is sprayed, after being centrifuged rotating machine body running for a period of time, is remained in operation opening stabilizer sprinkling lock.
As an improvement of the present invention, the top of the secondary treatment equipment is equipped with switching door, is below switching door
Slope is connected into hopper dredger, into hopper dredger with centrifuging chamber, and centrifuging chamber center is bowl and auger conveyor, and liquid phase is arranged in bottom side
Outlet and solid-phase outlet storehouse, hopper dredger lower part connects card slot transmitting device 7 out.
As an improvement of the present invention, for the three-level mixing plant including being blender, upper part is curing agent sprinkling
Lock.
As an improvement of the present invention, GPS system is provided in the control volume.
As an improvement of the present invention, the quantity of the pumping mud system waterborne is at least one, can be set to two,
Increasing a set of pumping mud head, hydraulic stem, slush pump, extraction mud pipe and spoil disposal pipe device the vacant two sides, two slush pumps interlock more
Arrangement, operates simultaneously.
As an improvement of the present invention, in the different vibrosieve partition of multiple partial sizes, next stage partial size is less than upper one
The partition of grade partial size, so that mud natural subsidence under the effect of gravity.
Compared with the existing technology, the invention has the advantages that, 1) setting control inside underwater perturbed system in the program
Body processed, cabinet itself can be moved to dredging place by the GPS positioning system in control volume, drawn without foreign object；And cabinet body
Product it is small, it can be achieved that small rivers, lake dredging work.Self-action telescopic fixing rod, self-action telescopic environment-friendly reamer and match
The pumping mud head for setting hydraulic stem, can reach different work depth according to demand, keep dredging work more convenient, efficient；2) program
In level-one screening plant in set different-grain diameter vibrosieve partition, next stage partial size is less than upper level partial size partition, and mud exists
Natural subsidence under gravity.Simultaneously as screening needs a period of time, and the mud on partition is in tiled state, mud
Active area is big, thus at the top of device and side wall setting medicament spray the medicament that sprays of lock can having time and mud sufficiently mix
It closes；3) in view of chemical oxidation medicament added by processing organic pollution mud can be with the heavy metal etc. in mud in the program
Inorganic pollution interferes with each other, and causes the reduction of sludge treatment effect, therefore the program sprays lock using first unlatching oxidant, then opens
Intermittent addition medicament is sprayed in dynamic stability agent.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the invention patent；
Fig. 2 is that the small-sized mud of the invention patent twists the diagram showing the structure of suction box；
Fig. 3 is the diagram showing the structure of the sludge treatment case of the invention patent；
Wherein: 1, small-sized mud twists suction box；2, underwater perturbed system；3, pumping mud system waterborne；4, sludge treatment case；5, level-one is sieved
Subset；6, two-stage centrifugal equipment；7, card slot transmission device；8, three-level mixing plant；21, self-action telescopic fixing rod； 22,
Self-action telescopic environment-friendly reamer；23, idler wheel is driven；24, control volume；31, mud head is taken out；311 take out mud reamer；32, extraction mud pipe；33,
Slush pump；34, hydraulic stem；35, sludge pipe；51, vibrosieve partition；52, chemical oxidizing agent sprays lock；53, stabilizer sprays
Lock；61, switching door；62, slope is into hopper dredger；63, centrifuging chamber；631, bowl；632, auger conveyor；633, liquid phase goes out
Mouthful；634, solid-phase outlet storehouse；81, blender；82, curing agent sprays lock.
Specific embodiment:
In order to deepen the understanding of the present invention, the present embodiment is described in detail with reference to the accompanying drawing.
Embodiment 1: referring to figures 1-3, a kind of dredging of brooks and small lakes and device for treating sludge, the processing equipment include small
Type twists suction box 1 and sludge treatment case 4, the small-sized strand suction box 1 include underwater operation underwater perturbed system 2 and float on
The pumping mud system 3 waterborne of water surface, the sludge treatment case 4 include level-one screening plant 5, secondary treatment equipment 6, card slot biography
Defeated device 7 and three-level mixing plant 8, the level-one screening plant 5 are located at 6 top of secondary treatment equipment, the two stage treatment
Dewatered sludge is sent to three-level mixing plant 8 by card slot transmitting device 7 by equipment 6.2 bottom four corners of underwater perturbed system
Self-action telescopic fixing rod 21 is installed, bottom center is equipped with self-action telescopic environment-friendly reamer 22, and four side of bottom is equipped with
The control volume 24 of idler wheel 23, telescopic environment-friendly reamer 22 and idler wheel is located at underwater 2 centre of perturbed system, and the control volume 24 is adopted
It is wrapped up with waterproof material and is connected with fixed link 21, reamer 22 and idler wheel 23.
3 side of pumping mud system waterborne, which is equipped with, takes out mud head 31, passes through extraction mud pipe 32 and internal 33 phase of slush pump
Even, it takes out on mud head 31 and hydraulic stem 34 is installed, for adjusting slush pump position, convenient for drawing different depth mud, the pumping mud
Quick reamer 311 is installed inside first 31, prevents from blocking pipeline compared with bigger material, 33 other side of slush pump is connected with sludge pipe 35,
For mud to be discharged into dredging tube.The vibrosieve partition 51 different equipped with multiple partial sizes, described in the level-one screening plant 5
Multiple batch oxidation agent sprinkling locks 52 are arranged in the top of vibrosieve partition 51 and side wall and stabilizer sprays lock 53.According to silt
The different pollutant characteristics contained in mud, generally heavy metal pollution, organic contamination and combined pollution.If only by heavy metal-polluted
Dye then can only open the stabilizer sprinkling lock；If being only polluted by organic matter or combined pollution, need first to open oxidant spray
Lock is spilt, after being centrifuged rotating machine body running for a period of time, is remained in operation opening stabilizer sprinkling lock.The secondary treatment equipment 6
Top be equipped with switching door 61, be slope below switching door 61 into hopper dredger 62, be connected into hopper dredger 62 with centrifuging chamber 63, centrifuging chamber
63 centers are bowl 631 and auger conveyor 632, and liquid-phase outlet 633 and solid-phase outlet storehouse 634, mud extraction is arranged in bottom side
634 lower part of storehouse connects card slot transmitting device 7.For the three-level mixing plant 8 including being blender 81, upper part is curing agent sprinkling
Lock 82.GPS system is provided in the control volume.The quantity of the pumping mud system waterborne is at least one, can be set to two
It is a, i.e., increasing a set of pumping mud head, hydraulic stem, slush pump, extraction mud pipe and spoil disposal pipe device the vacant two sides, two slush pumps are handed over more
Mistake arrangement, operates simultaneously.In the different vibrosieve partition 51 of multiple partial sizes, next stage partial size be less than upper level partial size every
Plate, so that mud natural subsidence under the effect of gravity.
The course of work: referring to figures 1-3, when starting to dredge work, small-sized strand suction box 1 is put into dredging water body, controlled
24 drive case surrounding idler wheel of body sets in control volume and reaches specified dredging place under GPS system operation, at this point, control volume 24
Driving self-action telescopic fixing rod 21, which drops to bottom, to be fixed.After cabinet is fixed, control volume 24 drives self-action telescopic environment-friendly
The arrival of reamer 22 presets depth of implements agitation mud layer.Meanwhile it taking out mud head 31 and reaching Rao Ni circle under the driving of hydraulic stem 34
Face takes out mud reamer 311, extraction mud pipe 32, slush pump 33, sludge pipe 35 and starts to work, and Dredged bed mud strand inspiration is entered dredging tube and is arrived
Up to sludge treatment case 4.Mud enters the level-one screening plant 5 for the treatment of box, and paving falls in 51 surface of vibrosieve partition, starts to vibrate
Sieve work.Meanwhile intermittent spray lock is opened, interval time can determine according to vibration frequency.If mud is only by heavy metal-polluted
Dye then can only open stabilizer and spray lock 53, to the heavy metal contaminants being passivated in mud；If be only polluted by organic matter or
It by combined pollution, then needs after first opening oxidant sprinkling 52 a period of time of lock, restarts stabilizer sprinkling lock 53.To vibrosieve
After the completion, the switching door 61 at 6 top of two-stage centrifugal equipment is opened, mud reaches centrifuging chamber 63 into hopper dredger 62 by ramp type and feeds
Mouthful, start centrifugal work.After bowl 631 works, the solid phase particles bigger than density of liquid phase are in the powerful centrifugation masterpiece of rotary drum
It is separated with lower rapid subsidence to drum inner wall.The muddy water isolated is discharged by liquid-phase outlet 633, the spiral transferring inside centrifuging chamber
It send 632 solid phases for being deposited on drum inner wall of device to push rotary drum small end solid-phase outlet storehouse 634 to, falls into card slot transmitting device 7, convey
To three-level agitating device 8.Blender 81 uses vertical helical structure, sprays mud and curing agent on the curing agent that lock 82 sprays
Under seethe, crisscross motion, rapidly uniformly mixing.
It should be noted that above-described embodiment, is not intended to limit the scope of protection of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or substitution each fall within the range that the claims in the present invention are protected.
Claims (9)
1. a kind of dredging of brooks and small lakes and device for treating sludge, which is characterized in that the processing equipment include small-sized strand suction box and
Include sludge treatment case, the small-sized strand suction box include underwater operation underwater perturbed system and float on the water of water surface
Upper pumping mud system, the sludge treatment case include that level-one screening plant, secondary treatment equipment, card slot transmitting device and three-level are stirred
Mixing equipment, the level-one screening plant are located at secondary treatment equipment top, and the secondary treatment equipment passes through card slot transmitting device
Dewatered sludge is sent to three-level mixing plant.
2. brooks and small lakes dredging according to claim 1 and device for treating sludge, which is characterized in that the underwater disturbance system
System bottom four corners are equipped with self-action telescopic fixing rod, and bottom center is equipped with self-action telescopic environment-friendly reamer, four side of bottom
Idler wheel is installed, the control volume of telescopic environment-friendly reamer and idler wheel is located at underwater perturbed system centre, and the control volume uses
Waterproof material wraps up and is connected with fixed link, reamer and idler wheel.
3. brooks and small lakes dredging according to claim 2 and device for treating sludge, which is characterized in that the pumping mud waterborne system
Unified side, which is equipped with, takes out mud head, is connected by extraction mud pipe with an internal slush pump, takes out and be equipped with hydraulic stem on mud head, for adjusting
Whole slush pump position, is equipped with quick reamer convenient for drawing different depth mud, inside the pumpings mud head, the slush pump other side and
Sludge pipe is connected, for mud to be discharged into dredging tube.
4. brooks and small lakes dredging according to claim 3 and device for treating sludge, which is characterized in that the level-one screening is set
The standby interior vibrosieve partition different equipped with multiple partial sizes, the top of the vibrosieve partition and side wall setting are multiple intermittent
Oxidant sprays lock and stabilizer sprays lock.
5. brooks and small lakes dredging according to claim 4 and device for treating sludge, which is characterized in that the two stage treatment is set
Standby top is equipped with switching door, is slope below switching door into hopper dredger, is connected into hopper dredger with centrifuging chamber, centrifuging chamber center for from
Liquid-phase outlet and solid-phase outlet storehouse is arranged in scheming rotary drum and auger conveyor, bottom side, and hopper dredger lower part connects card slot transmitting device out
7。
6. brooks and small lakes dredging according to claim 5 and device for treating sludge, which is characterized in that the three-level stirring is set
It is blender for including, upper part is that curing agent sprays lock 82.
7. brooks and small lakes dredging according to claim 6 and device for treating sludge, which is characterized in that set in the control volume
It is equipped with GPS system.
8. brooks and small lakes dredging according to claim 7 and device for treating sludge, which is characterized in that the pumping mud waterborne system
The quantity of system is at least one.
9. brooks and small lakes dredging according to claim 8 and device for treating sludge, which is characterized in that multiple partial sizes are different
In vibrosieve partition, next stage partial size is less than the partition of upper level partial size, so that mud natural subsidence under the effect of gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346682.4A CN110127964A (en) | 2019-04-27 | 2019-04-27 | A kind of dredging of brooks and small lakes and device for treating sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346682.4A CN110127964A (en) | 2019-04-27 | 2019-04-27 | A kind of dredging of brooks and small lakes and device for treating sludge |
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| Publication Number | Publication Date |
|---|---|
| CN110127964A true CN110127964A (en) | 2019-08-16 |
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ID=67575226
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910346682.4A Pending CN110127964A (en) | 2019-04-27 | 2019-04-27 | A kind of dredging of brooks and small lakes and device for treating sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701841A (en) * | 2020-06-24 | 2020-09-25 | 程效银 | Grit sieving mechanism of oscillating bridge construction usefulness |
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| 何连生: "重金属污染调查与治理技术", 中国环境出版社, pages: 135 - 136 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701841A (en) * | 2020-06-24 | 2020-09-25 | 程效银 | Grit sieving mechanism of oscillating bridge construction usefulness |
| CN111701841B (en) * | 2020-06-24 | 2022-04-29 | 建始县长盛砂石料有限责任公司 | Grit sieving mechanism of oscillating bridge construction usefulness |
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