CN107185730A - A kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content - Google Patents
A kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content Download PDFInfo
- Publication number
- CN107185730A CN107185730A CN201710431632.7A CN201710431632A CN107185730A CN 107185730 A CN107185730 A CN 107185730A CN 201710431632 A CN201710431632 A CN 201710431632A CN 107185730 A CN107185730 A CN 107185730A
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- Prior art keywords
- helical blade
- centrifuge
- screw feeder
- rotary drum
- moisture content
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- 239000007788 liquid Substances 0.000 title claims abstract description 30
- 239000007787 solid Substances 0.000 title claims abstract description 29
- 238000009987 spinning Methods 0.000 title claims abstract description 19
- 239000012265 solid product Substances 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 abstract description 12
- 239000002245 particle Substances 0.000 abstract description 11
- 239000000725 suspension Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/02—Electric motor drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
- B04B2001/2025—Driving control or mechanisms; Arrangement of transmission gearing with drive comprising a planetary gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B2001/2041—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with baffles, plates, vanes or discs attached to the conveying screw
Landscapes
- Centrifugal Separators (AREA)
Abstract
The present invention relates to Centrifuge Techniques field, more particularly to spiral separation type vertical centrifugal machine.Propose a kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content, including housing, feed pipe, main motor, auxiliary motor, differential mechanism, screw feeder and rotary drum, screw feeder is located in rotary drum, screw feeder includes axis and helical blade, helical blade is fixedly connected with axis, and helical blade is using circumferential uniform and spaced apart provided with multiple perforates along it on hollow type structure, i.e. helical blade.Screw feeder in the present invention uses the helical blade of hollow structure, begin to be separated before not up to rotary drum so that the liquid of suspension is solid, improve the separative efficiency and disintegrate-quality of centrifuge, so that the separative efficiency of centrifuge improves 10%~20%, the particle that particle diameter is not less than 0.2 μm can be reclaimed.
Description
Technical field
The present invention relates to Centrifuge Techniques field, more particularly to spiral separation type vertical centrifugal machine.
Background technology
Centrifuge is to utilize in mixed liquor to have different densities and immiscible light, heavy-fluid and solid phase, in centrifugal force field
The middle principle for obtaining different sinking speed, reaches separation layering or makes the purpose of solid particles sediment in liquid.It is mainly used
In industries such as chemical industry, ore dressing, oil, pharmacy, food, and the sewage disposal etc. of foul smelling smell is needed to entering containing solid suspension
The occasion of row sedimentation separation.
At present, conventional centrifuge is mainly horizontal spiral discharge sedimentation centrifuge, and this centrifuge is due in structure
Limitation, differential drive is not than high, usually from larger one or more motor driving of power so that centrifuge was being run
Vibrate larger in journey, the base bearing of centrifuge is easily impaired, it is necessary to often safeguard, while noise is larger during operation, generally higher than
Water content in 85dB, and the solid isolated is more than 25%.
The content of the invention
To solve the problem of prior art is present, the present invention proposes a kind of solid centrifuge of vertical spiral spinning liquid, effectively improved
Separative efficiency, reduces the water content of solid after separation, while the running noises value in 1m can be made to be reduced to below 80dB.
To achieve the above object, the technical solution adopted by the present invention is：Propose one kind and realize that solid product is ultralow aqueous
The solid centrifuge of the vertical spiral spinning liquid of amount, including housing, feed pipe, main motor, auxiliary motor, differential mechanism, screw feeder and rotary drum,
Screw feeder is located in rotary drum, and screw feeder includes axis and helical blade, and helical blade is fixedly connected with axis, spiral
Blade is using circumferential uniform and spaced apart provided with multiple perforates along it on hollow type structure, i.e. helical blade.
The perforate gross area on the helical blade accounts for the 1/4~1/2 of the whole helical blade gross area.
The perforate gross area on the helical blade accounts for the 1/3 of the whole helical blade gross area.
The differential mechanism is satellite differential, and it uses 3~5 grades of planetary gears, and corresponding gearratio is 1:64~
1:1024。
The differential mechanism is satellite differential, and it uses 4 grades of planetary gears, and gearratio is 1:256.
The main motor driving wheel drives main motor driven pulley by V-shape belt or timing belt, main motor driven pulley with it is poor
Fast device external toothing is coaxially connected, and differential mechanism external toothing and rotary drum are coaxially connected；The auxiliary motor driving wheel passes through V-shape belt or same
The input shaft of step band drive auxiliary motor driven pulley, auxiliary motor driven pulley and differential mechanism is coaxially connected, the output shaft and spiral shell of differential mechanism
Revolve pusher coaxially connected.
The main motor and auxiliary motor are respectively by two Frequency Converter Controls, and the differential between screw feeder and rotary drum is 0
~10RPM.
Gap between the helical blade and drum inner wall is 0.5~3mm.
The rotary drum is made up of shell of column and cone section, and the shell of column of rotary drum and the length ratio of cone section are 2:1~1:1, and its cone
The cone angle of section is 2 °~10 °；The screw feeder is made up of shell of column and cone section, the shell of column of screw feeder and the length of cone section
Ratio is 2:1~1:1, and its cone angle for boring section is 2 °~10 °.
Beneficial effects of the present invention are embodied in：
1. the screw feeder in the present invention uses the helical blade of hollow structure so that the liquid of suspension is solid not up to be turned
The movement locus shown in Fig. 2 dotted lines is begun to before drum to be separated, and improves the separative efficiency and disintegrate-quality of centrifuge.
Separative efficiency can be made to improve 10%~20%, the particle that particle diameter is not less than 0.2 μm can be reclaimed；
2. main motor and auxiliary motor are driven respectively by two frequency converters in the present invention, and using multi-stage planetary gear differential mechanism,
0~10RPM of differential between accurate control screw feeder and rotary drum, and provide 1：64~1：1024 gearratio so that point
Solid aqueous amount from after reaches 5%~20%, and the noise figure in 1m can be made to be reduced to below 80dB.
Brief description of the drawings
Fig. 1 is the structural representation of the solid centrifuge of vertical spiral spinning liquid；
Fig. 2 is the screw feeder structural representation of the solid centrifuge of vertical spiral spinning liquid；
Fig. 3 is the structural representation of helical blade；
In figure：1- feed pipes, 2- auxiliary motor driven pulleys, 3- belt pulleys, 4- auxiliary motor driving wheels, 5- multi-stage planetary gear differential mechanisms
With main motor driven pulley, 6- auxiliary motors, 7- transmission devices, 8- housings, 9- screw feeders, 10- rotary drums, 11- overflow launders, 12-
Motor support frame, 13- underframe, 14- slag notches, 15- overfalls, 16- main motors, 17- main motor driving wheels, 18- helical blades,
19- perforates.
Note：1. gravity direction is represented, centrifugation force direction is 2. represented, 3. represents the force direction that rises, 4. represent little particle and liquid
Body movement locus direction.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
The solid centrifuge of vertical spiral spinning liquid as shown in Figure 1, is driven by main motor 16 and auxiliary motor 6, wherein, the driving of main motor 16 turns
Drum 10 and multi-stage planetary gear differential mechanism external toothing；Auxiliary motor 6 drives multi-stage planetary gear differential input shaft, and then drives spiral shell
Revolve pusher 9.Main motor 16 and auxiliary motor 6 are respectively by two Frequency Converter Controls, stepless time adjustment.
Main motor driving wheel 17 drives main motor driven pulley, main motor driven pulley and multistage by V-shape belt or timing belt
Satellite differential external toothing is coaxially connected, and multi-stage planetary gear differential mechanism external toothing and rotary drum 10 are coaxially connected, synchronized to turn
It is dynamic.
Auxiliary motor driving wheel 4 drives auxiliary motor driven pulley 2, auxiliary motor driven pulley 2 and multistage by V-shape belt or timing belt
The input shaft of satellite differential is coaxially connected.Multi-stage planetary gear differential mechanism is made up of 3 grades~5 grades of planetary gearsets,
Form 1：64~1：1024 gearratio, power, multi-stage planetary gear are spread out of by the incoming power of its input shaft and by its output shaft
The output shaft of differential mechanism and screw feeder are coaxially connected.
Main motor and auxiliary motor are driven by frequency converter respectively, make to form 0~10RPM's between screw feeder and rotary drum
Differential.
Screw feeder 9 includes axis and helical blade 18, and helical blade 18 is fixedly connected with axis, and helical blade 18 is adopted
With on hollow type structure similar to Figure 3, i.e. helical blade 18 along it is circumferential uniform, be spaced apart and be provided with multiple perforates 19, spiral
The perforate gross area on blade 18 accounts for the 1/4~1/2 of the whole helical blade gross area.Between between helical blade 18 and rotary drum 10
Gap is 0.5~3mm.
Rotary drum is made up of shell of column and cone section, and the cone angle of rotary drum cone section is 2 °~10 °.The shell of column of rotary drum and the length ratio of cone section
Example is 2:1~1:1.Screw feeder 9 is also made up of shell of column and cone section, and it is segmented position and cone angle is identical with the structure of rotary drum.
Gap between the blade and rotary drum of screw feeder is 0.5~3mm.
The solid centrifuge course of work of vertical spiral spinning liquid is as follows：
1. suspension is added to the diffluence pass of screw feeder by feed pipe, due to the presence of centrifugal force so that suspension quilt
Gradually it is distributed on the inwall of rotary drum.Simultaneously as the presence of the hollow structure of screw feeder so that light in suspension
Grain and liquid will be moved on drum inner wall along the dashed trace in Fig. 2, make the solid-liquor separation in suspension.
2. the design of the hollow structure of helical blade in screw feeder, the liquid in suspension can be made to be more prone to admittedly point
From.Horizontal spiral discharge sedimentation centrifuge typically using integral blade design, suspension be first be dispersed on drum inner wall with
Afterwards, because the presence of the power that rises shown in Fig. 2, lighter particle and liquid can be gradually increasing along rotary drum, heavier particle edge
Rotary drum to be gradually reduced, separated.And in the present invention, the hollow structure design of helical blade can consolidate the liquid of suspension
Begin to along Fig. 2 dotted lines that 4. shown movement locus is separated before not up to rotary drum, improve the separation effect of centrifuge
Rate and disintegrate-quality.
3. the relatively light particle and liquid after separation are risen to after rotary drum fluid port along drum inner wall, centrifugal force is lost,
Flowed out along the overfall of housing.
4. the heavier particle after separation is transported downwards by the compound action power of gravity and centrifugal force along drum inner wall
It is dynamic, move to after rotary drum cone section, rotary drum is released downwards by screw feeder, discharged by slag notch.Solid is when cone section is stopped
Between can be realized by changing differential, and the length of residence time be determine solid water capacity a key factor, change sentence
Talk about, the differential of differential mechanism is than smaller, Gu translational speed of the material in rotary drum is slower, the de- liquid of dryer section is made in such rotary drum
With more obvious, admittedly the water capacity expected is just smaller.
5. but solid material is constantly accumulated in rotary drum, the power that the discharge needs of solid material can be caused larger, so, the present invention
The differential mechanism constituted from 3 grades~5 grades of planetary gearsets, to provide larger torsion.Multi-stage planetary gear differential mechanism is not only
1 can be provided：64~1：1024 gearratio, and can be between more precise control screw feeder and rotary drum differential,
Make the differential regulation for realizing 0~10RPM between the two.
Embodiment 2：
The solid centrifuge basic structure of vertical spiral spinning liquid in the present embodiment is in the same manner as in Example 1, and the design parameter of centrifuge is such as
Under：
1. connected between the driving wheel and driven pulley of motor using V-shape belt and V belt wheels；
2. multi-stage planetary gear differential mechanism is using 4 grades of planetary gearsets, gearratio is 1:256；
3. the cone angle of rotary drum cone section is 4 °, the cone angle of screw feeder is 4 °；
4. rotary drum shell of column and the length ratio of cone section are 1.5:1, screw feeder shell of column and the length ratio for boring section are 1.5:1；
5. the perforate gross area on helical blade accounts for the 1/3 of the whole helical blade gross area；
6. the helical blade of screw feeder and the spacing of drum inner wall are 1mm.
Operating parameter is set：
The use of the differential between Frequency Converter Control screw feeder and rotary drum is 1RPM.
Practical effect：
The centrifuge in the present embodiment is used to separate grain diameter for 0.5 μm of nickel base alloy solution, solution concentration 13.2%, point
Contain solid particle 0.04%, the solid aqueous rate 6.0% after separation in liquid from after.And use horizontal spiral discharge sedimentation centrifuge
Solid matter moisture content after separation is 25%.As can be seen here, it can be significantly reduced using the vertical centrifugal machine of the present invention solid after separation
The water content of body.
Claims (9)
1. a kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content, including housing, feed pipe, main motor,
Auxiliary motor, differential mechanism, screw feeder and rotary drum, screw feeder are located in rotary drum, and screw feeder includes axis and spiral
Blade, helical blade is fixedly connected with axis, it is characterised in that：Helical blade is using edge on hollow type structure, i.e. helical blade
It is circumferential uniform and is spaced apart provided with multiple perforates.
2. a kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content according to claim 1, it is special
Levy and be：The perforate gross area on the helical blade accounts for the 1/4~1/2 of the whole helical blade gross area.
3. a kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content according to claim 1, it is special
Levy and be：The perforate gross area on the helical blade accounts for the 1/3 of the whole helical blade gross area.
4. a kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content according to claim 1, it is special
Levy and be：The differential mechanism is satellite differential, and it uses 3~5 grades of planetary gears, and corresponding gearratio is 1:64~1:
1024。
5. a kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content according to claim 1, it is special
Levy and be：The differential mechanism is satellite differential, and it uses 4 grades of planetary gears, and gearratio is 1:256.
6. centrifuged admittedly according to a kind of any described vertical spiral spinning liquids for realizing solid product Ultra-low Moisture Content of claim 1-5
Machine, it is characterised in that：The driving wheel of the main motor drives main motor driven pulley by V-shape belt or timing belt, main motor
Driven pulley and differential mechanism external toothing are coaxially connected, and differential mechanism external toothing and rotary drum are coaxially connected；The driving wheel of the auxiliary motor leads to
Cross V-shape belt or timing belt drives auxiliary motor driven pulley, the driven pulley of auxiliary motor and the input shaft of differential mechanism are coaxially connected, differential
The output shaft of device and screw feeder are coaxially connected.
7. a kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content according to claim 6, it is special
Levy and be：The main motor and auxiliary motor respectively by two Frequency Converter Controls, differential between screw feeder and rotary drum for 0~
10RPM。
8. centrifuged admittedly according to a kind of any described vertical spiral spinning liquids for realizing solid product Ultra-low Moisture Content of claim 1-5
Machine, it is characterised in that：Gap between the helical blade and drum inner wall is 0.5~3mm.
9. centrifuged admittedly according to a kind of any described vertical spiral spinning liquids for realizing solid product Ultra-low Moisture Content of claim 1-5
Machine, it is characterised in that：The rotary drum is made up of shell of column and cone section, and the shell of column of rotary drum and the length ratio of cone section are 2:1~1:1,
And its cone angle for boring section is 2 °~10 °；The screw feeder is made up of shell of column and cone section, the shell of column and cone section of screw feeder
Length ratio be 2:1~1:1, and its cone angle for boring section is 2 °~10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710431632.7A CN107185730A (en) | 2017-06-09 | 2017-06-09 | A kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710431632.7A CN107185730A (en) | 2017-06-09 | 2017-06-09 | A kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content |
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| Publication Number | Publication Date |
|---|---|
| CN107185730A true CN107185730A (en) | 2017-09-22 |
Family
ID=59877983
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710431632.7A Pending CN107185730A (en) | 2017-06-09 | 2017-06-09 | A kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575551A (en) * | 2017-10-19 | 2018-01-12 | 章臣重工(苏州)有限公司 | A kind of centrifuge differential mechanism with central through hole |
| CN108435444A (en) * | 2018-03-21 | 2018-08-24 | 大连隆盛科技有限公司 | A kind of vertical solution consolidates centrifuge satellite differential and vertical solution consolidates centrifuge |
| CN108452955A (en) * | 2018-03-21 | 2018-08-28 | 大连隆盛科技有限公司 | A kind of vertical separating machine of oil injection type high temperature solid-liquor separation |
| CN109514394A (en) * | 2019-01-14 | 2019-03-26 | 浙江江山福鑫工艺品有限公司 | A kind of water circulation cyclone polishing machine being convenient for changing abrasive material |
| CN109516595A (en) * | 2018-12-05 | 2019-03-26 | 珠海力新环保有限公司 | A kind of sewage-treatment plant and method |
| CN110947226A (en) * | 2019-11-19 | 2020-04-03 | 佛山科学技术学院 | Solid-liquid preseparation device for sewage treatment |
| CN117447046A (en) * | 2023-12-26 | 2024-01-26 | 河北国惠环保科技有限公司 | Sludge concentration device |
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| CN204672448U (en) * | 2015-04-22 | 2015-09-30 | 中科华辰实业有限公司 | A kind of centrifuge screw feeder |
| KR101663827B1 (en) * | 2016-04-20 | 2016-10-07 | 주식회사 무한기술 | Multi-screw equipped horizontal decanter type centrifuge separator |
| CN206824029U (en) * | 2017-06-09 | 2018-01-02 | 大连隆田科技有限公司 | A kind of solid centrifuge of vertical spiral spinning liquid for realizing solid product Ultra-low Moisture Content |
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| JP2005144279A (en) * | 2003-11-13 | 2005-06-09 | Niigata Uoshinton Kk | Vertical decanter type centrifugal separator |
| JP2009268963A (en) * | 2008-05-07 | 2009-11-19 | Neis Co Ltd | Vertical centrifugal separator |
| CN103111377A (en) * | 2013-01-31 | 2013-05-22 | 浙江三联环保机械设备有限公司 | Differential mechanism of spiral discharge centrifugal machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575551A (en) * | 2017-10-19 | 2018-01-12 | 章臣重工(苏州)有限公司 | A kind of centrifuge differential mechanism with central through hole |
| CN108435444A (en) * | 2018-03-21 | 2018-08-24 | 大连隆盛科技有限公司 | A kind of vertical solution consolidates centrifuge satellite differential and vertical solution consolidates centrifuge |
| CN108452955A (en) * | 2018-03-21 | 2018-08-28 | 大连隆盛科技有限公司 | A kind of vertical separating machine of oil injection type high temperature solid-liquor separation |
| CN109516595A (en) * | 2018-12-05 | 2019-03-26 | 珠海力新环保有限公司 | A kind of sewage-treatment plant and method |
| CN109514394A (en) * | 2019-01-14 | 2019-03-26 | 浙江江山福鑫工艺品有限公司 | A kind of water circulation cyclone polishing machine being convenient for changing abrasive material |
| CN110947226A (en) * | 2019-11-19 | 2020-04-03 | 佛山科学技术学院 | Solid-liquid preseparation device for sewage treatment |
| CN117447046A (en) * | 2023-12-26 | 2024-01-26 | 河北国惠环保科技有限公司 | Sludge concentration device |
| CN117447046B (en) * | 2023-12-26 | 2024-02-27 | 河北国惠环保科技有限公司 | Sludge concentration device |
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Application publication date: 20170922 |