CN107986594A - Riverway sludge processing unit - Google Patents
Riverway sludge processing unit Download PDFInfo
- Publication number
- CN107986594A CN107986594A CN201711299450.5A CN201711299450A CN107986594A CN 107986594 A CN107986594 A CN 107986594A CN 201711299450 A CN201711299450 A CN 201711299450A CN 107986594 A CN107986594 A CN 107986594A
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- CN
- China
- Prior art keywords
- housing
- filter plate
- groove
- processing unit
- height
- 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.)
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Classifications
-
- 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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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 invention discloses riverway sludge processing unit, belongs to hydraulic engineering technical field, which includes：Housing, is provided with mud import, wastewater outlet and the first opening；Pressing plate, it is located in housing；Power set, it is connected with pressing plate；The madial wall of filter plate, its one end and housing is hinged, and the other end is open through first；Fixed block, it is installed on a lateral wall of housing, the first groove is provided with fixed block, the cross section of the first groove is convex shape；Two supporting blocks, it is disposed in the first groove, and supporting block is convex shape, and is embedded in the first groove, and when filter plate is horizontally disposed, the other end on filter plate along its length is shelved on the top of two supporting blocks.The present invention is structurally and operationally simple, and use cost is relatively low, and is readily cleaned.
Description
Technical field
The present invention relates to hydraulic engineering technical field.A kind of it is more particularly related to riverway sludge processing unit.
Background technology
Hydraulic engineering is the surface water and groundwater for controlling and allocating nature, reaches and removes the evil emerging sharp purpose and build
Engineering.Also referred to as Hydraulic Projects.Water is human being's production and essential precious resources of living, but the state of its naturally occurring is simultaneously
Not in full conformity with the needs of the mankind.Hydraulic engineering is only built, current could be controlled, prevents flood, and carry out water
Adjust and distribute, to meet the needs of people's lives and production to water resource.
The characteristics of city river is that water channel intersects, and bridge lock is numerous, and water transport is busy, the river garbage in these waters it is not only more but also
Miscellaneous, river bed such as can not in time be cleared up there are mud, can influence the water quality at water source, and can distribute stench, can be to the life of resident
Bring inconvenience.
Sludge treatment be sludge is handled, is cured, is dehydrated, is stablized, the process of desiccation or burning.Mud is drawn
After going out, moisture is very high, it has not been convenient to transport and drying, thus need that mud first is carried out preliminary hydro-extraction.Existing mud takes off
There is the problems such as complicated, power set input is more, complicated, and cost is higher for water treatment facilities.
The content of the invention
The object of the present invention is to provide a kind of riverway sludge processing unit, so that device structurally and operationally simple, cost
Reduce.
In order to realize these purposes and further advantage according to the present invention, there is provided riverway sludge processing unit, including：
Housing, it is inner hollow, and the cuboid that top is opened wide, the top of the housing are provided with mud import,
Lower part is provided with wastewater outlet, and the first square opening is provided with the side wall of lower part；
Pressing plate, to be square and horizontally disposed, the pressing plate be located in the housing for it, and the size of pressing plate and
The size of the cross section of housing is identical；
Power set, it is connected with pressing plate, moves up and down for band dynamic pressure plate；
Filter plate, it is cuboid, and one end and the madial wall of the housing on filter plate along its length are hinged, another
End extends to the outside of the housing through the described first opening, and when filter plate is horizontally disposed, shell is located on filter plate
The size of internal part is identical with the size of the cross section of housing, and is arranged at intervals with multiple filter openings thereon, the bottom surface of filter plate
Height higher than the height of the bottom of the first opening, the height of top surface is equal to the height at the top of the first opening；
Fixed block, it is strip, and fixed block is installed on a lateral wall of housing, and along it on the filter plate
The lower section of the other end of length direction, is provided with the first groove on the fixed block along the width of the filter plate, and described
The cross section of one groove is convex shape；
Two supporting blocks, it is disposed in first groove, and supporting block is convex shape, and is embedded described first
In groove, when filter plate is horizontally disposed, the other end on the filter plate along its length is shelved on two supporting blocks
Top.
Preferably, in the riverway sludge processing unit, the upper and lower part of the housing separates, the housing
Top is shelved on the lower part of the housing, and filter plate is located in the lower part of housing, and the bottom of the housing is provided with the first castor；
The riverway sludge processing unit further includes：
Stent, it is inverted L-shaped, and an end of stent is fixedly connected with the lateral wall on the top of the housing, another
The height of end is less than or equal to the height of the first castor；
Collection frame, its inner hollow, and top is opened wide, the bottom of collection frame are provided with the second castor, collection frame with it is described
First opening is opposite, and the lower section of the horizontal part positioned at the stent, when the inclination of filtering plate is set, along it on the filter plate
The other end of length direction is located at the top of the collection frame；
Montant, it is vertically set, and montant is provided with the second groove, the bottom of montant and the receipts top down
The bottom of collection frame is fixedly connected, and top passes through the top of the collection frame, and extends close to the horizontal part of the stent；
Fixed link, it is vertically set, and the bottom of fixed link is inserted into the second groove, and top passes through the stent
Horizontal part.
Preferably, in the riverway sludge processing unit, under the bottom on the top of the housing and the housing
One of the top in portion is provided with a pair of of protrusion, and another is provided with a pair of 3rd groove, and one raised one corresponding
3rd groove, protrusion are inserted into corresponding the 3rd groove, and the 3rd groove runs through the side wall of the housing where it, and with its institute
Housing side wall it is parallel, a pair of 3rd groove is arranged in parallel.
Preferably, in the riverway sludge processing unit, sealing ring, the sealing ring position are arranged with the housing
Intersection in the upper and lower part of the housing.
Preferably, in the riverway sludge processing unit, the other end on filter plate along its length is provided with more
The elastomeric element of root long bar shaped, the top connection of the other end on one end of elastomeric element and filter plate along its length are another
End is connected with a lateral wall of the housing, and when inclination of filtering plate setting, and the height of the bottom surface of filter plate is opened higher than first
During the height of the bottom of mouth, the more elastomeric elements are in extended state.
Preferably, in the riverway sludge processing unit, further include：
Baffle, it is vertically set to be square, and baffle is located in the housing, and close to the first opening, baffle
Top be fixedly connected with the bottom surface of filter plate, when filter plate is horizontally disposed, the height of the bottom of baffle is opened less than first
Three madial walls of the height of the bottom of mouth, baffle and housing fit, and on filter plate between baffle and the first opening
Part is solid construction.
Preferably, in the riverway sludge processing unit, the bottom of the baffle and the bottom of the housing do not connect
Touch.
Preferably, in the riverway sludge processing unit, the fixed link is cuboid, the fixed link and institute
State and the inner wall of second groove is formed on montant fit.
The present invention includes at least following beneficial effect：
The present invention supports the other end of filter plate by two supporting blocks, after preliminary hydro-extraction is carried out to mud, extracts out at the same time
Two supporting blocks, you can the mud after preliminary hydro-extraction is flow to along the inclined-plane of filter plate in collection frame, it is easy to operate.
The present invention separates the upper and lower part of housing, is carrying out preliminary hydro-extraction to mud, and make the silt after preliminary hydro-extraction
After mud enters in collection frame, the lower part of housing can be removed, filter plate is cleaned or is replaced.
The present invention is provided with baffle in the bottom of filter plate, in inclination of filtering plate, is avoided that mud or waste water flow to fixed block
On so that device is readily cleaned.
The bottom of fixed link is inserted into the second groove by the present invention, and makes its top through the horizontal part of stent, you can will
Collection frame is fixed on the place of needs, and avoiding artificial collision when in use causes collection frame to move.
The present invention can save great amount of cost only with a power set.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structure diagram of riverway sludge processing unit according to an embodiment of the invention；
Fig. 2 is the structure diagram at the top of the lower part of housing according to an embodiment of the invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, is not instruction or implies signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.
As depicted in figs. 1 and 2, the present invention provides riverway sludge processing unit, including：
Housing 100, it is inner hollow, and the cuboid that top is opened wide, the top of the housing 100 are provided with mud
Import 101, lower part are provided with wastewater outlet 102, and the first square opening 103 is provided with the side wall of lower part；
Pressing plate 110, it is square and horizontally disposed, and the pressing plate 110 is located in the housing 100, and pressing plate
110 size is identical with the size of the cross section of housing 100；
Power set, it is connected with pressing plate 110, for band dynamic pressure plate 110 move up and down, power set can be motor,
The device that cylinder and hydraulic cylinder etc. can move up and down with dynamic pressure plate 110；In the place that condition does not allow, manpower generation can also be used
Replace.
Filter plate 120, it is cuboid, one end on filter plate 120 along its length and the madial wall of the housing 100
Hinged, the other end extends to the outside of the housing 100 through the described first opening 103, when filter plate 120 in the horizontal direction
During setting, the size of the part on filter plate 120 in housing 100 is identical with the size of the cross section of housing 100 (to filter at this time
Plate 120 separates the inside of housing 100), and multiple filter openings are arranged at intervals with thereon, the height of the bottom surface of filter plate 120 is higher than the
The height of the bottom of one opening 103, the height of top surface are equal to the height at the top of the first opening 103 so that filter plate 120 can only water
Flat or filter plate 120 the other end tilts down；, can be on the other end of filter plate 120 along the width side of filter plate 120 when specifically used
To both ends set baffle, make mud during collection frame 160 is flow to, will not be from filter plate 120 along its width
Flow out both sides so that mud can only be flow in collection frame 160 along filter plate 120.
Fixed block 130, it is strip, and the lateral wall that fixed block 130 is installed in housing 100 (is provided with first to open
The lateral wall of mouth 103) on, and the lower section of the other end on the filter plate 120 along its length, the fixed block 130
On the width of the filter plate 120 is provided with the first groove, the cross section of first groove is convex shape；
Two supporting blocks 140, it is disposed in first groove, and supporting block 140 is convex shape, and is embedded in institute
State in the first groove so that supporting block 140 can not be taken out upwards, can only be taken out from the both ends of the first groove, when filter plate 120 is along water
Square to when setting, the other end on the filter plate 120 along its length is shelved on the top of two supporting blocks 140.Two
Supporting block 140 should evenly support filter plate 120, when specifically used, can be set relative to the axisymmetrical of filter plate 120.
The riverway sludge processing unit that this programme provides, when in use, two supporting blocks 140 are embedded in the first groove
In, the other end on filter plate 120 along its length is shelved on the top of two supporting blocks 140, the silt that will be extracted out from river
Mud by mud import 101 import housing 100 in, rear fender 110 be pressed downward mud under the driving of power, be dehydrated.
During dehydration, waste water flow to the lower section of filter plate 120, is flowed out by wastewater outlet 102, and collection frame 160 is placed on filter plate 120 afterwards
The lower section of the other end, while extract two supporting blocks 140 out, you can make inclined-plane stream of the mud after preliminary hydro-extraction along filter plate 120
Into collection frame 160.By will be transported after mud preliminarily dried, the number of transport can be reduced.
In one preferred solution, in the riverway sludge processing unit, the upper and lower part of the housing 100 separates,
The top of the housing 100 is shelved on the lower part of the housing 100, and filter plate 120 is located in the lower part of housing 100, the shell
The bottom of body 100 is provided with the first castor；Filter plate 120 so should remove housing as close to the top of the lower part of housing
Lower part after, convenient cleaning and replace filter plate 120.
The riverway sludge processing unit further includes：
Stent 150, it is inverted L-shaped, and an end of stent 150 and the lateral wall on the top of the housing 100 fix company
Connect, the height of another end is less than or equal to the height of the first castor；The top of the energy fixed shell 100 of stent 150.
Collection frame 160, its inner hollow, and top is opened wide, the bottom of collection frame 160 is provided with the second castor, collection frame
160 is opposite with the described first opening 103, and the lower section of the horizontal part positioned at the stent 150, is set when the filter plate 120 tilts
When putting, the other end on the filter plate 120 along its length is located at the top of the collection frame 160；Can be in collection frame 160
Knob is set respectively with the lower part of housing 100, is pulled out the lower part of collection frame 160 and housing 100 by knob.
Montant 170, it is vertically set, and montant 170 is provided with the second groove, the bottom of montant 170 top down
Portion is fixedly connected with the bottom of the collection frame 160, and top passes through the top of the collection frame 160, and is extended close to described
The horizontal part of stent 150；
Fixed link 180, it is vertically set, and the bottom of fixed link 180 is inserted into the second groove, and top is described in
The horizontal part of stent 150 (is provided with the through hole passed through for fixed link 180, and is just passed through fixed link 180 on stent 150
The through hole).
In such scheme, collection frame 160 is moved to the position of needs, after movement when filter plate 120 tilts, mud energy
All it flow in collection frame 160, and makes montant 170 opposite with through hole, is inserted into fixed link 180 in through-holes afterwards, and make fixation
Bar 180 is inserted into the second groove, and the top of fixed link 180 is located at the top of the horizontal part of stent 150, so can be by collection frame
160 are fixed.
In one preferred solution, in the riverway sludge processing unit, the bottom on the top of the housing 100 and described
One of top of lower part of housing 100 is provided with a pair of of protrusion, and another is provided with a pair of 3rd groove, such as Fig. 2
It is shown, it is that raised, raised corresponding 3rd groove is set at the top of the lower part of housing 100, protrusion insertion is right with it
In the 3rd groove answered, the side wall of housing 100 of the 3rd groove where it, and put down with the side wall of the housing 100 where it
OK, a pair of 3rd groove is arranged in parallel.
In such scheme, two protrusions are inserted into two the 3rd grooves respectively, you can by the top of housing 100 and shell
The lower part of body 100 is fixed, and when needing to remove the lower part of housing 100, makes raised along the removal of the 3rd groove.
In one preferred solution, in the riverway sludge processing unit, sealing ring 190 is arranged with the housing 100,
The sealing ring 190 is located at the intersection of the upper and lower part of (or encasing) described housing 100.
In such scheme, by set sealing ring 190 be avoided that housing 100 upper and lower part junction leak,
Also the upper and lower part connection of housing 100 can be made more stable, when needing to remove the lower part of housing 100, sealing ring 190 is moved to
The top of housing 100 or the lower part of housing 100, you can the lower part of housing 100 is separated with the top of housing 100.
In one preferred solution, in the riverway sludge processing unit, the other end on filter plate 120 along its length
The elastomeric element 200 of more root long bar shapeds is provided with, elastomeric element 200 can be the flexible strip portion such as spring, rubber rope
Part, one end of elastomeric element 200 are connected with the top of the other end on filter plate 120 along its length, the other end and the shell
A lateral wall (lateral wall for being provided with the first opening 103) connection of body 100, when the filter plate 120 is obliquely installed, and filter plate
When the height of 120 bottom surface is higher than the height of the bottom of the first opening 103, the more elastomeric elements 200 are in stretching shape
State.
In such scheme, when extracting two supporting blocks 140 out at the same time, filter plate 120 will not beat housing 100 thereunder
On, avoid mud splashing.
In one preferred solution, in the riverway sludge processing unit, further include：
Baffle 210, it is vertically set to be square, and baffle 210 is located in the housing 100, and close to first
Opening 103, the top of baffle 210 is fixedly connected with the bottom surface of filter plate 120, when filter plate is horizontally disposed, baffle 210
Less than the height of the bottom of the first opening 103, three madial walls of baffle 210 and housing 100 fit (to be kept off the height of bottom
Front and rear and right side the side wall of plate 210 and housing 100 as shown in Figure 1 fits), and it is located at baffle 210 and the on filter plate 120
Part between one opening 103 is solid construction.I.e. as shown in Figure 1, on filter plate 120 positioned at the part on the right side of baffle 210 not
Filter opening is set.In actual use, the waste water in the lower part of housing 100 should be discharged in time, make the depth of waste water less than baffle 210
The height of bottom.
In the above-mentioned technical solutions, the bottom of filter plate 120 is provided with baffle 210, when filter plate 120 tilts, is avoided that
Mud or waste water are flow on fixed block 130 along the inclined-plane of filter plate 120 so that device cleaning is more convenient.
In one preferred solution, in the riverway sludge processing unit, bottom and the housing of the baffle 210
100 bottom does not contact.
In such scheme, make filter plate 120 when tilting, the rotation of the bottom of housing 100 without limitation on baffle 210.
In one preferred solution, in the riverway sludge processing unit, the fixed link 180 is cuboid, described
Fixed link 180 fits with forming the inner wall of second groove on the montant 170.
In such scheme, so that montant 170 can not be rotated relative to fixed link 180, i.e., collection frame 160 can not turn
It is dynamic, it can not also move horizontally.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Realize other modification, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the legend with description.
Claims (8)
1. riverway sludge processing unit, it is characterised in that including：
Housing, it is inner hollow, and the cuboid that top is opened wide, the top of the housing are provided with mud import, lower part
Wastewater outlet is provided with, the first square opening is provided with the side wall of lower part；
Pressing plate, it is square and horizontally disposed, and the pressing plate is located in the housing, and the size and housing of pressing plate
Cross section size it is identical；
Power set, it is connected with pressing plate, moves up and down for band dynamic pressure plate；
Filter plate, it is cuboid, and one end and the madial wall of the housing on filter plate along its length are hinged, and the other end is worn
First opening is crossed, and extends to the outside of the housing, when filter plate is horizontally disposed, on filter plate in housing
Part size it is identical with the size of the cross section of housing, and be arranged at intervals with multiple filter openings thereon, the height of the bottom surface of filter plate
The height for the bottom that degree is open higher than first, the height of top surface are equal to the height at the top of the first opening；
Fixed block, it is strip, and fixed block is installed on a lateral wall of housing, and on the filter plate along its length
The lower section of the other end in direction, is provided with the first groove on the fixed block, described first is recessed along the width of the filter plate
The cross section of groove is convex shape；
Two supporting blocks, it is disposed in first groove, and supporting block is convex shape, and is embedded in first groove
In, when filter plate is horizontally disposed, the other end on the filter plate along its length is shelved on the top of two supporting blocks
Portion.
2. riverway sludge processing unit as claimed in claim 1, it is characterised in that the upper and lower part of the housing separates,
The top of the housing is shelved on the lower part of the housing, and filter plate is located in the lower part of housing, and the bottom of the housing is set
There is the first castor；
The riverway sludge processing unit further includes：
Stent, it is inverted L-shaped, and an end of stent is fixedly connected with the lateral wall on the top of the housing, another end
Height be less than or equal to the first castor height；
Collection frame, its inner hollow, and top is opened wide, the bottom of collection frame is provided with the second castor, collection frame and described first
Opening is opposite, and the lower section of the horizontal part positioned at the stent, when the inclination of filtering plate is set, on the filter plate along its length
The other end in direction is located at the top of the collection frame；
Montant, it is vertically set, and montant is provided with the second groove, the bottom of montant and the collection frame top down
Bottom be fixedly connected, top passes through the top of the collection frame, and extends close to the horizontal part of the stent；
Fixed link, it is vertically set, and the bottom of fixed link is inserted into the second groove, and top passes through the level of the stent
Portion.
3. riverway sludge processing unit as claimed in claim 2, it is characterised in that the bottom on the top of the housing and described
One of top of lower part of housing is provided with a pair of of protrusion, and another is provided with a pair of 3rd groove, a protrusion
Corresponding 3rd groove, protrusion are inserted into the 3rd corresponding groove, the side wall of housing of the 3rd groove where it,
And it is parallel with the side wall of the housing where it, a pair of 3rd groove is arranged in parallel.
4. riverway sludge processing unit as claimed in claim 2, it is characterised in that sealing ring, institute are arranged with the housing
State the intersection that sealing ring is located at the upper and lower part of the housing.
5. riverway sludge processing unit as claimed in claim 1, it is characterised in that the other end on filter plate along its length
It is provided with the elastomeric element of more root long bar shapeds, connects at the top of the other end on one end of elastomeric element and filter plate along its length
Connect, the other end is connected with a lateral wall of the housing, and when inclination of filtering plate setting, and the height of the bottom surface of filter plate is higher than
During the height of the bottom of the first opening, the more elastomeric elements are in extended state.
6. riverway sludge processing unit as claimed in claim 1, it is characterised in that further include：
Baffle, it is vertically set to be square, and baffle is located in the housing, and close to the first opening, the top of baffle
Portion is fixedly connected with the bottom surface of filter plate, and when filter plate is horizontally disposed, the height of the bottom of baffle is less than the first opening
Three madial walls of the height of bottom, baffle and housing fit, and the part on filter plate between baffle and the first opening
For solid construction.
7. riverway sludge processing unit as claimed in claim 6, it is characterised in that the bottom of the baffle and the housing
Bottom does not contact.
8. riverway sludge processing unit as claimed in claim 2, it is characterised in that the fixed link is cuboid, described
Fixed link fits with forming the inner wall of second groove on the montant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711299450.5A CN107986594A (en) | 2017-12-08 | 2017-12-08 | Riverway sludge processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711299450.5A CN107986594A (en) | 2017-12-08 | 2017-12-08 | Riverway sludge processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107986594A true CN107986594A (en) | 2018-05-04 |
Family
ID=62037003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711299450.5A Withdrawn CN107986594A (en) | 2017-12-08 | 2017-12-08 | Riverway sludge processing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107986594A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854190A (en) * | 2018-07-12 | 2018-11-23 | 芜湖鑫霖森椽环保科技有限公司 | A kind of sewage-treatment plant being convenient to clean filter residue |
| CN109320045A (en) * | 2018-12-21 | 2019-02-12 | 郭珊珊 | Sludge treatment device |
| CN112245995A (en) * | 2020-10-16 | 2021-01-22 | 王榆植 | Energy-conserving efficient sewage treatment plant |
| WO2024021298A1 (en) * | 2022-07-29 | 2024-02-01 | 中国港湾工程有限责任公司 | Sludge treatment device |
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| CN109320045B (en) * | 2018-12-21 | 2021-09-10 | 郭珊珊 | Sludge treatment device |
| CN112245995A (en) * | 2020-10-16 | 2021-01-22 | 王榆植 | Energy-conserving efficient sewage treatment plant |
| WO2024021298A1 (en) * | 2022-07-29 | 2024-02-01 | 中国港湾工程有限责任公司 | Sludge treatment device |
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Application publication date: 20180504 |