CN108585433B - Integrated sludge thickener - Google Patents
Integrated sludge thickener Download PDFInfo
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- CN108585433B CN108585433B CN201810729450.2A CN201810729450A CN108585433B CN 108585433 B CN108585433 B CN 108585433B CN 201810729450 A CN201810729450 A CN 201810729450A CN 108585433 B CN108585433 B CN 108585433B
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- flocculation
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- main shaft
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- 239000010802 sludge Substances 0.000 title claims abstract description 37
- 239000002562 thickening agent Substances 0.000 title claims abstract description 10
- 238000005189 flocculation Methods 0.000 claims abstract description 81
- 230000016615 flocculation Effects 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 230000005484 gravity Effects 0.000 claims abstract description 41
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 15
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 15
- 241001330002 Bambuseae Species 0.000 claims abstract description 15
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 15
- 239000011425 bamboo Substances 0.000 claims abstract description 15
- 239000002893 slag Substances 0.000 claims abstract description 7
- 230000018044 dehydration Effects 0.000 claims abstract description 6
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 210000005056 cell body Anatomy 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 3
- 238000005253 cladding Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
The utility model provides an integration sludge thickener, belongs to the sludge treatment field, including central main shaft, central main shaft outlying strain section of thick bamboo, with a plurality of connecting rods of straining a section of thick bamboo and central main shaft rigid coupling, central main shaft both ends set up on the bearing frame, central main shaft connection driving motor drive or strain a section of thick bamboo outer wall and set up round drive gear, driving motor connection pinion, pinion and gear meshing transmission, its characterized in that strain section of thick bamboo includes the cylinder support, the drum surface on the cylinder support of cladding, strain section of thick bamboo divide into flocculation section, gravity dehydration section and gravity concentration section in proper order, flocculation section, gravity dehydration section are the horizontal segment of straining a section, gravity concentration section is the conical section of straining a section, the drum surface of flocculation section is sealing panel, the drum surface of gravity concentration section and flocculation section is mesh panel, and flocculation section's internal surface is provided with a plurality of flocculation basin, and flocculation basin forms around the centre of a circle array, and the inlet tube stretches into from flocculation section, goes out water and strain the tangential setting, gravity concentration section end is provided with the slag notch.
Description
Technical Field
The invention relates to the field of sludge treatment, in particular to a drum-type sludge dewatering machine.
Background
Chinese patent CN207270843U discloses a belt filter press for sludge dewatering, which belongs to the technical field of sludge treatment, and comprises a main frame and an auxiliary frame, and is characterized in that: the outside of main frame is equipped with first filter belt, the outside of auxiliary frame is equipped with the second filter belt, all be equipped with a plurality of deflector rolls in main frame and the auxiliary frame, be equipped with between first filter belt and the second filter belt and squeeze device and a plurality of high-pressure dewatering roller, squeeze device includes mounting panel, movable compression roller, pressure-bearing cylinder and pneumatic cylinder one, pneumatic cylinder one fixed connection is in the lower part of auxiliary frame, the output and the mounting panel fixed connection of pneumatic cylinder one, the lower part at the mounting panel is installed to movable compression roller, pressure-bearing cylinder installs on the main frame. The invention can fully utilize the occupied space of the equipment, multiply expand the gravity dewatering area, remove more water in the gravity dewatering area, and is beneficial to improving the dewatering effect of the press roller group and the dewatering effect of the sludge.
The technical scheme also discloses that the pressure-bearing roller performs gravity dehydration, but has poor flocculation effect and higher energy consumption, and needs to be improved.
Another example is: chinese patent CN201358206Y discloses a sludge concentrating and dewatering integrated device, which comprises a sludge mixing and feeding device, a rotary pushing gravity dewatering device, a filtering and squeezing device and a sludge cake outlet; the sludge mixing and feeding device comprises a sludge stirring tank and a sludge conveying pipe which are arranged on a frame, wherein a sludge inlet and a medicine inlet are formed in the sludge stirring tank, and stirring blades driven by a motor are arranged in the sludge stirring tank; the sludge conveying pipe is connected with the upper part of the sludge stirring tank; the rotary pushing gravity dewatering device comprises a screen drum, a drainage pipeline and a lower water collecting tank, and the screen drum is connected with a motor; the filtering and squeezing device comprises an upper filter belt, a lower filter belt and a plurality of dewatering rollers, wherein the upper filter belt and the lower filter belt are controlled by a motor, and a wedge-shaped area is formed between the upper filter belt and the lower filter belt; the dewatering rollers are distributed between the upper filter belt and the lower filter belt in an S shape. The invention has the advantages of easy operation, stable performance and high degree of automation, and is ideal equipment for sludge dewatering treatment.
The screen drum only plays a role in gravity dewatering, the flocculation of the screen drum needs to be additionally provided with a sludge stirrer, and the screen drum is driven by a motor, so that the energy consumption is high and still needs to be improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the integrated sludge thickener which has small occupied area and can realize the integration of gravity dewatering, mixed flocculation, spiral conveying and squeezing.
In order to achieve the purpose of the invention, the following technical scheme is provided: the integrated sludge thickener comprises a central spindle, a filter cylinder arranged on the periphery of the central spindle, and a plurality of connecting rods for fixedly connecting the filter cylinder with the central spindle, wherein two ends of the central spindle are arranged on a bearing seat, the central spindle is connected with a driving motor or the outer wall of the filter cylinder is provided with a circle of driving large gear, the driving motor is connected with a small gear, and the small gear is meshed with the large gear for transmission.
Preferably, a mud guiding plate is arranged at the rear side of the slag hole.
Preferably, the flocculation water tank is a strip-shaped tank body, the section of the tank body is arc-shaped, and one side of the arc-shaped tank body is provided with a water retaining extension edge extending upwards. Through the arrangement, the flocculation mixing time in the water tank can be effectively prolonged.
Preferably, the included angle between the highest point of the water retaining edge and the horizontal plane of the highest point on the other side of the circular arc is 45 degrees.
Preferably, the flocculation water tank is provided with a flocculation spiral blade at the rear side in the flocculation section, and the flocculation spiral blade is fixedly connected with the roller bracket.
When the rotating speed of the roller is high and reaches 5r/min, only 1/4 circle of the roller generates flocculation time which is too short, a plurality of circles of continuous flocculation spiral blades are arranged at the rear stage of the water tank, and flocculation is performed again through the flocculation spiral blades, so that flocculation mixing time is prolonged.
Preferably, the flocculating helical blade is a small helix angle continuous blade of 1.5 turns, pitch p=200. By this arrangement the mixing efficiency is increased.
Preferably, the inner surfaces of the gravity dewatering section and the gravity concentration section are provided with variable-diameter conveying spiral blades, and the spiral blades are fixedly connected with the roller bracket. Conveying and squeezing are carried out through the conveying spiral blade with the variable diameter, so that the gravity dewatering efficiency and the squeezing efficiency are greatly improved.
Preferably, the connecting rod is fixedly connected with the central spindle vertically.
The invention has the beneficial effects that: the invention uses the gravity of the flocculation water tank filled with water as a part of external force for driving the concentration roller, and the part of force is continuous and generates additional torque relative to the roller, so that the roller assists the driving motor to reduce the power. This reduction in power produces a greater torque with a greater diameter of the drum and a greater sump volume, while the central (or peripheral) drive motor may act as auxiliary power. When the torque generated by the hydraulic power is large enough, the driving motor can be omitted, and the drum is rotated only by the hydraulic power. The device can be used as a pre-stage pretreatment for sewage treatment to intercept, retain, dewater and convey slag in sewage.
Drawings
Fig. 1 is a front view of embodiment 1 of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a front view of embodiment 2.
Fig. 4 is a left side view of example 2.
Fig. 5 is a schematic view of the cartridge of fig. 1.
Fig. 6 is a front view of the sink.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a partial enlarged view of T in fig. 2.
FIG. 9 is a schematic diagram of the combination structure of the invention and a filter press.
Detailed Description
Example 1: the utility model provides an integration sludge thickener, including central main shaft 1, central main shaft 1 outlying strain a section of thick bamboo 2, with a plurality of connecting rods 3 of straining a section of thick bamboo 2 and central main shaft 1 rigid coupling, central main shaft 1 both ends set up on bearing frame 9, central main shaft 1 connects driving motor 13 drive, connecting rod 3 one end and central main shaft 1 vertical rigid coupling, the other end is connected with the cylinder support 2.1 of straining a section of thick bamboo 2, cylinder support 2.1 surface cladding has a section of thick bamboo 2.2, strain a section of thick bamboo 2 and divide into flocculation section 2A in proper order, gravity dewatering section 2B and gravity concentration section 2C, flocculation section 2A, gravity dewatering section 2B is the horizontal segment of straining a section of thick bamboo 2, gravity concentration section 2C is the toper section of straining a section of thick bamboo 2, flocculation section 2A's section of thick bamboo 2.2 is sealed panel 2.2.1, gravity concentration section 2B and flocculation section 2A's section of thick bamboo face 2.2 is mesh panel 2.2, flocculation section 2A's internal surface is provided with 16 flocculation basin 4, flocculation basin 4 surrounds the centre of a circle array and forms, flocculation basin 4 is rectangular groove body, the cell body cross-section is circular arc shape, one side is provided with 4 that upwards extends. The included angle between the highest point of the water retaining extension 4.1 and the horizontal plane of the highest point of the arc-shaped other side 4.2 is 45 degrees. The water retaining extension 4.1 extending upwards is arranged on the outer side and is close to one side of the wall of the filter cylinder 2. The rear side of the flocculation water tank 4 is positioned in the flocculation section 2A, and is additionally provided with a flocculation spiral blade 8, and the flocculation spiral blade 8 is fixedly connected with the roller bracket 2.1. The flocculation screw blade 8 is a small helix angle continuous blade of 1.5 turns, pitch p=200.
The water inlet pipe 5 stretches into from flocculation section 2A, is provided with water intaking valve 10 on the water inlet pipe 5, goes out water and filter cylinder 2 tangential setting, and gravity concentration section 2C end is provided with slag notch 6. A mud guiding plate is arranged at the rear side of the slag hole 6.
The inner surfaces of the gravity dewatering section 2B and the gravity concentration section 2C are provided with variable-diameter conveying spiral blades 7, and the spiral blades 7 are fixedly connected with the roller bracket 2.1. A flushing pipeline 11 is arranged above the filter cylinder 2 along the length direction of the cylinder wall.
Example 2: referring to the embodiment 1, the other characteristics are unchanged, a circle of driving large gear 12 is arranged on the outer wall of the filter cylinder, a driving motor 13 is connected with a small gear 14, and the small gear 14 is meshed with the large gear 12 for transmission.
The application can be combined with a filter press for use, and the flocculation stirring cylinder in the prior art which is omitted as shown in fig. 9 has low energy consumption and small occupied area. Wherein the filter press is 15, the filter cylinder 2 and the civil engineering foundation is 16.
The specific implementation method comprises the following steps:
The first step of sludge flocculation:
1) Setting general parameters.
The drum is set to rotate at a speed of 3r/min, the linear speed pi of the outer cylinder with the diameter phi of 1.2m is calculated to be 0.19m/s, namely the moving speed of the sludge in the filter cylinder.
Setting the effective length L=1000 mm of the flocculation water tank, and the diameter of the flocculation water tank is 150mm, wherein the section of the flocculation water tank is shown in the figure, and the volume V=pi2L/2 of the water to the highest liquid level is calculated to be 0.0081 m/m.
The number of flocculation tanks is set to be 16, the flocculation tanks are uniformly distributed on the inner wall of the cylinder, and the water inflow is calculated to be 3 multiplied by 16 multiplied by 0.0081=0.39 m/min. I.e. the actual throughput of the drum is 23 m/h.
2) Calculation of flocculation time. (the minimum flocculation time required by the setting process is more than or equal to 15 s)
Flocculation time of flocculation water tank: an included angle of 5 degrees is set to the flocculation water tank relative to the horizontal central shaft, the flocculation water tank rotates from the position A to the position B, and the flocculation water tank rotates at a speed of 3r/min, namely 20s/r for flocculation mixing time. The rotation time ¼ x 20 = 3.75s from point a to point B, i.e. the effective flocculation time of the sludge is 3.75s. The exit time ¼ x ¼ x 20=1.25 s from point B to point C. The flocculation run time from point a to point C was ¼ x 20 = 5s for the cylinder.
Spiral flocculation time: in the post-treatment of the flocculation tank, a small helical angle continuous blade pitch p=200 of 1.5 circles is set in a closed cylinder, and the purpose is to increase flocculation time. The water discharged from the flocculation water tank directly enters the section to continue the mixed flocculation of the mud and the water. After the parameters have been set: the rotation speed is 3r/min, namely 20s/r, and the spiral number=1.5p. Since 1p=1r=20s, the shortest and longest time for spiral flocculation in drum rotation are 0.5×20=10s and 1.5×20=30s, respectively.
Conclusion: basin flocculation + spiral flocculation, total muddy water flocculation time: between 5+10=15 s and 5+30=35 s. Meets the process requirements. (when the rotating speed of the roller is increased and decreased, the spiral number of turns of the flocculation section can be increased or decreased so as to meet the flocculation time requirement of sludge).
3) And calculating the water inlet moment and the power.
The volume of a single water tank is known to be 0.0081m by a density of water of 1t/m and a gravity of 8.1kgf; at 1 kgf=9.8n, i.e., =79.38n.
According to a moment formula: t=fa. The gravity force f=79.38n, the moment arm a=0.52 m is known.
T=FA=79.38*0.52=41.28N.m； T1=F1A=Fcos22*0.52=38.27N.m；
T2=F2A=Fcos45*0.52=29.17N.m; T3=F3A=Fcos68*0.52=29.76N.m；
Total torque T z =t+t1+t2+t3=124.2 n.m.
Power formula p=t zN/9550,Tz =124.2 n.mn=3r/min. Calculated p=39w.
The original independently-established 0.5-1 cubic meter flocculation cylinder stirring power of 0.75kw can be canceled.
And step two, gravity dehydration:
spiral flocculation liquid in the closed cylinder is pushed to the filter screen cylinder through continuous variable-pitch spiral blades, a filter screen cylinder frame and a central shaft are fixedly connected through steel pipes, the inside of the frame is welded with the spiral blades (left-handed), the number of spirals is 2.5, and the pitch P=300. The blade is externally wrapped with a 20-mesh stainless steel wire net, the periphery of the steel wire net is fixed on the frame through a pressing plate, the diameter phi of the steel wire is 0.4mm, and the mesh diameter reaches 0.87 multiplied by 0.87mm. The flocculated mud and water are obviously separated, the mud water deposited at the bottom of the filter screen cylinder is continuously turned over and pushed to the rear stage at the linear speed of 0.19m/s along with the rotation of the spiral blades, and the water therein is continuously and largely separated out due to gravity, so that the gravity dehydration is completed, and the water content is reduced to about 90%.
And thirdly, gravity concentration:
The sludge is pushed to the conical filter screen cylinder by the continuous spiral blades, and the water content of the sludge is reduced to about 86% by concentrating and dehydrating the sludge due to the lifting effect of the conical filter screen cylinder on the sludge.
Claims (4)
1. The integrated sludge thickener includes a central main shaft, a filter cylinder around the central main shaft, and a filter cylinder fixed to the central main shaft
A plurality of connecting rods, two ends of a central main shaft are arranged on the bearing seat, and the central main shaft is connected with a driving motor for driving or the outer wall of the filter cylinder
A circle of driving large gear is arranged, a driving motor is connected with a small gear, and the small gear is meshed with the large gear for transmission, and the filter cartridge bag is characterized in that
The filter cartridge is sequentially divided into a flocculation section, a gravity dewatering section and a gravity concentration section
The flocculation section and the gravity dewatering section are horizontal sections of the filter cartridge, the gravity concentration section is a conical section of the filter cartridge, and the cartridges of the flocculation section
The face is sealed panel, the barrel face of gravity concentration section and gravity dehydration section is the mesh panel, the internal surface of flocculation section is provided with a plurality of flocculation basin, flocculation basin surrounds the centre of a circle array and forms, the inlet tube stretches into from the flocculation section, go out water and strain a section of thick bamboo tangential setting, utilize the gravity that flocculation basin was filled with water as the part external force that drives concentrated cylinder, gravity concentration section end is provided with the slag notch, flocculation basin is rectangular cell body, the cell body cross-section is convex, convex one side is provided with the manger plate that upwards extends and extends, the contained angle between the highest point of manger plate extension and the highest point horizontal plane of convex opposite side is 45 degrees, flocculation basin rear side is located flocculation section and is equipped with flocculation helical blade in addition, flocculation helical blade and cylinder support rigid coupling, flocculation helical blade is 1.5 circle's little continuous blade, pitch P=200.
2. The integrated sludge thickener as claimed in claim 1, wherein a mud guiding plate is provided at a rear side of the slag hole.
3. The integrated sludge thickener of claim 1, wherein the gravity dewatering section and the gravity thickening section are provided with a water separator
The inner surface is provided with a variable-diameter conveying helical blade which is fixedly connected with the roller bracket.
4. The integrated sludge thickener of claim 1 wherein the connecting rod is fixedly connected to the central spindle vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810729450.2A CN108585433B (en) | 2018-07-05 | 2018-07-05 | Integrated sludge thickener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810729450.2A CN108585433B (en) | 2018-07-05 | 2018-07-05 | Integrated sludge thickener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108585433A CN108585433A (en) | 2018-09-28 |
| CN108585433B true CN108585433B (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810729450.2A Active CN108585433B (en) | 2018-07-05 | 2018-07-05 | Integrated sludge thickener |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449781Y (en) * | 2000-09-20 | 2001-09-26 | 上海遂道工程股份有限公司施工技术研究所 | Building slurry treating machine |
| KR200317326Y1 (en) * | 2003-03-21 | 2003-06-25 | 박민선 | Drum type filter |
| JP2005095800A (en) * | 2003-09-25 | 2005-04-14 | Sakamoto Shokai:Kk | Mud water treatment apparatus |
| FR2910822A1 (en) * | 2006-12-29 | 2008-07-04 | Otv Sa | Treating water filled with colloidal impurities in dissolved or suspension form using a treatment installation, comprises supplying the water in a flocculation zone, and introducing the mixture of water and flocs in a settling zone |
| KR101222452B1 (en) * | 2012-10-31 | 2013-01-15 | 박경자 | The dehydration and aridity of the constructional sludge |
| CN105056603A (en) * | 2015-09-17 | 2015-11-18 | 个旧鼎易科技有限公司 | Sewage filtering device |
| CN205616755U (en) * | 2016-04-19 | 2016-10-05 | 苏州圳乾环保设备制造有限公司 | Sludge dewatering purifier |
| KR101712568B1 (en) * | 2016-09-06 | 2017-03-22 | 이에스피 주식회사 | Stirring device for flocculation tank having nonpowered blade |
| CN107364002A (en) * | 2015-08-24 | 2017-11-21 | 朱小菊 | The rotating cylinder of energy-saving concrete mixer |
| CN208717143U (en) * | 2018-07-05 | 2019-04-09 | 鹏鹞环保股份有限公司 | Integral sludge thickener |
-
2018
- 2018-07-05 CN CN201810729450.2A patent/CN108585433B/en active Active
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|---|---|---|---|---|
| CN2449781Y (en) * | 2000-09-20 | 2001-09-26 | 上海遂道工程股份有限公司施工技术研究所 | Building slurry treating machine |
| KR200317326Y1 (en) * | 2003-03-21 | 2003-06-25 | 박민선 | Drum type filter |
| JP2005095800A (en) * | 2003-09-25 | 2005-04-14 | Sakamoto Shokai:Kk | Mud water treatment apparatus |
| FR2910822A1 (en) * | 2006-12-29 | 2008-07-04 | Otv Sa | Treating water filled with colloidal impurities in dissolved or suspension form using a treatment installation, comprises supplying the water in a flocculation zone, and introducing the mixture of water and flocs in a settling zone |
| KR101222452B1 (en) * | 2012-10-31 | 2013-01-15 | 박경자 | The dehydration and aridity of the constructional sludge |
| CN107364002A (en) * | 2015-08-24 | 2017-11-21 | 朱小菊 | The rotating cylinder of energy-saving concrete mixer |
| CN105056603A (en) * | 2015-09-17 | 2015-11-18 | 个旧鼎易科技有限公司 | Sewage filtering device |
| CN205616755U (en) * | 2016-04-19 | 2016-10-05 | 苏州圳乾环保设备制造有限公司 | Sludge dewatering purifier |
| KR101712568B1 (en) * | 2016-09-06 | 2017-03-22 | 이에스피 주식회사 | Stirring device for flocculation tank having nonpowered blade |
| CN208717143U (en) * | 2018-07-05 | 2019-04-09 | 鹏鹞环保股份有限公司 | Integral sludge thickener |
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| 一种新型絮凝反应器的设计;孟婷等;化工管理;20180601;第2018年卷(第16期);第131-132页 * |
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| CN108585433A (en) | 2018-09-28 |
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Inventor after: Sun Jianfeng Inventor after: Wang Pengyao Inventor after: Li He Inventor after: Yin Yongjun Inventor after: Chen Mulan Inventor before: Sun Jianfeng |
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