KR101663827B1 - Multi-screw equipped horizontal decanter type centrifuge separator - Google Patents
Multi-screw equipped horizontal decanter type centrifuge separator Download PDFInfo
- Publication number
- KR101663827B1 KR101663827B1 KR1020160048301A KR20160048301A KR101663827B1 KR 101663827 B1 KR101663827 B1 KR 101663827B1 KR 1020160048301 A KR1020160048301 A KR 1020160048301A KR 20160048301 A KR20160048301 A KR 20160048301A KR 101663827 B1 KR101663827 B1 KR 101663827B1
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- KR
- South Korea
- Prior art keywords
- solids
- discharge port
- sludge
- supernatant
- wing
- Prior art date
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/14—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- 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
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Centrifugal Separators (AREA)
Abstract
The present invention relates to a horizontal centrifugal separating and dehydrator equipped with a multiscrew, and is characterized in that it is provided with a rotating shaft which is continuously formed in one direction along a spiral trace on a circumferential surface along an axial direction, A first spiral wing for forcibly transferring the solids separated from the solids discharge port; A supernatant discharge passage formed in the first helical wing so as not to cooperate with the first helical wing so as to allow the supernatant to flow in a direction opposite to the conveying direction of the solids so as to discharge the supernatant separated from the sludge to the supernatant discharge port; And a second spiral wing which is formed continuously in the other direction along a spiral path on the circumferential surface on the circumferential surface of the rotary shaft through the supersonic water discharge passage and is submerged on the inner bottom of the rotary bowl to lower the speed of the solid material transferred to the solenoid discharge port side, And a control unit.
Unlike the prior art, unlike the prior art, since the residence time of the light sedimented solid on the inner surface of the rotary bowl is long, the solids are moved to one side of the horizontal part, thereby further compressing the solids to reduce the water content. The efficiency can be improved.
Description
The present invention relates to a horizontal centrifugal concentrator and dehydrator, and more particularly to a centrifugal centrifugal separator and dehydrator for a centrifugal separator which is capable of moving a solid sediment on the inner surface of a rotary bowl to one side of a horizontal portion with a longer residence time, It is possible to improve the separation efficiency between the separation liquid and the solids by reducing the concentration of the sludge and to improve the separation efficiency between the separation liquid and the solids by means of the differential gear box and the proportional control controller. A proportional controller controls a vehicle speed motor that detects the transferred solids load torque and brakes the converted vehicle speed differently to the differential load value in a precise and quick manner to keep the water content of the discharged solids constant at all times. Or a high concentration of sludge, If no number of the multi-screw such that automatic operation proportional mounting relates to equilibrium centrifugation dehydrator and concentrated.
Conventional separation of liquid and solids such as wastewater sludge and the like is generally used in a horizontal centrifugal separator in which a cylindrical horizontal portion and a conical portion having a slope are integrally combined.
In the horizontal centrifugal separator, when the separation liquid is supplied to the input portion of a rotating bowl, the liquid and the solid are separated by a high centrifugal force field (about 2000 to 3000 G) in the horizontal portion bowl immediately after the supply, In the bowl conical portion from which the cake is discharged, since the distance from the rotation center is small, the centrifugal force is weak and the light solid is floated into the circumference of the screw shaft and discharged as it is,
In addition, the solid matter separated from the horizontal bowl passes through the inclined surface of the cone bowl for discharging it beyond the level in the horizontal bowl, so that slipping occurs and the discharge is not smooth.
In order to lower the water content of the solid cake to be discharged, the shear force must be increased at the slope of the boiler, so the rotation speed of the rotary bowl must be rotated at a higher speed than necessary, so that the power consumption is increased and the equipment is relatively increased.
Therefore, there is a need to improve this.
A horizontal centrifugal separator is proposed in Korean Patent Registration No. 10-0407896 entitled Sludge Concentration Dewatering Horizontal Centrifuge.
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method for manufacturing a rotary bowl, And to provide a horizontal centrifugal separator and dehydrator equipped with a multiscrew for improving the separation efficiency of the separated liquid and the solids according to the present invention.
In addition, the present invention can detect a transferred solids load torque applied to a plurality of spiral wings having different spiral path directions of a rotating shaft even when the concentration of supplied sludge changes frequently during operation through the differential gear box and the proportional control controller, The present invention provides a horizontal centrifugal separator and dehydrator equipped with a multiscrew for controlling a vehicle speed motor that brakes a different converted vehicle speed to a load value accurately and quickly by a proportional control controller so that the moisture content of the discharged solid matter is always kept constant. .
It is another object of the present invention to provide a horizontal centrifugal separating and dehydratering machine equipped with a multiscrew for allowing automatic proportional control operation without clogging or breakage even if impurities or high concentration sludge are instantaneously introduced.
The horizontal horizontal centrifugal separator and dehydrator equipped with the multiscrew according to the present invention comprises: a rotary bowl for forming an upper discharge port and a solids discharge port; A rotary shaft rotatably inserted into the rotary bowl; A sludge supply unit for supplying a sludge to the sludge supply unit, the sludge supply unit for supplying the sludge to the solenoid valve, 1 spiral wing; A supernatant discharge passage formed in the first spiral wing so as to allow the supernatant to flow in a direction opposite to the conveying direction of the solids so as to discharge a supernatant separated from the sludge to the supernatant discharge port; And lowering the speed of the solids conveyed to the side of the solids discharge port by being spirally formed on the circumferential surface of the rotary shaft in the other direction continuously in the other direction through the supersonic discharge passage, And a second helical wing for function caking.
Wherein the rotary bowl is divided into a horizontal portion having the same diameter and a conical portion having a gradually decreasing diameter toward the solids discharge port; The second helical wing may be disposed over a portion of the horizontal portion and a portion of the conical portion.
The height of the first helical wing on the circumference of the rotating shaft may be higher than the height of the second helical wing.
The rotating shaft can be electrically connected to the vehicle speed inverter and the controller so as to control the vehicle speed by using the vehicle speed load value of the vehicle speed motor even if the solids concentration of the sludge changes to maintain the water content of the solid matter at a set value.
As described above, the horizontal centrifugal separating and dehydrator equipped with the multiscrew according to the present invention is designed so that the residence time of the light sedimented solid on the inner surface of the rotary bowl is long and is moved to one side of the horizontal part So that the separation efficiency of the separation liquid and the solids can be improved.
In addition, the present invention can detect a transferred solids load torque applied to a plurality of spiral wings having different spiral path directions of a rotating shaft even when the concentration of supplied sludge changes frequently during operation through the differential gear box and the proportional control controller, A proportional controller can control a vehicle speed motor that brakes the converted vehicle speed accurately and quickly to match the load value, so that the moisture content of the discharged solid matter can be kept constant at all times.
In addition, the present invention can operate the automatic proportional control operation without being clogged or broken even if impurities or a high concentration of sludge flows instantaneously.
1 is a side cross-sectional view of a horizontal centrifugal separating and dehydrator equipped with a multiscrew according to an embodiment of the present invention.
FIG. 2 is an outline view of a rotating bowl of a horizontal centrifugal separating and dehydrator according to an embodiment of the present invention.
3 is an interior view of a rotating bowl according to an embodiment of the present invention.
4 is a perspective view of a rotating shaft having a plurality of spiral wings mounted to a rotating bowl according to an embodiment of the present invention.
5 is a cross-sectional view of a rotating bowl according to an embodiment of the present invention.
FIG. 6 is a process flow diagram illustrating the proportional control of the vehicle speed of a horizontal centrifugal separating and dehydrator equipped with a multiscrew according to an embodiment of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a horizontal centrifugal separating and dehydrator equipped with a multiscrew according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.
FIG. 1 is a side cross-sectional view of a horizontal centrifugal separating and dehydrator equipped with a multiscrew according to an embodiment of the present invention, and FIG. 2 is an outline view of a rotating bowl of a horizontal centrifugal separating and dehydrator according to an embodiment of the present invention .
4 is a perspective view of a rotating shaft having a plurality of spiral wings mounted on a rotating bowl according to an embodiment of the present invention, and FIG. 5 is a perspective view of a rotating shaft according to an embodiment of the present invention. Sectional view of a rotating bowl according to an embodiment of the invention.
FIG. 6 is a process flow diagram illustrating the proportional control of the vehicle speed of a horizontal centrifugal separating and dehydrator equipped with a multiscrew according to an embodiment of the present invention.
1 to 6, a horizontal centrifugal separating and dehydrator equipped with a multiscrew according to an embodiment of the present invention includes a
The
The separation
Particularly, the
At this time, the
In addition, the separation
In addition, the
Meanwhile, the
The
In particular, the
In addition, a
The
At this time, the
The
Further, the
At this time, the
Particularly, the
In addition, the
At this time, the
As the sludge is centrifuged, the solids having a large specific gravity are attached to the inner wall of the
The
In particular, the
The first
At this time, the separation liquid contained in the solids can be transferred toward the solids discharge
Thus, the first
Therefore, the separated liquid contained in the solid matter forcibly conveyed toward the solids discharge
At this time, the sludge injected through the
Of course, one or more of the first
Meanwhile, the
The second
The second
At this time, the
Since the height of the second
The second
The first
That is, the second
The solids precipitated on the inner wall of the
As shown in Table 1 below, when the distance from the center axis is 1 cm, the centrifugal force is reduced by about 200 G, and the reduction ratio is reduced by 8%.
[Table 1]
As a result, the heavy solid precipitated in the inner wall of the
Particularly, as the
That is, the
The
In particular, the
At this time, the inputted two rotational speeds RPM are numerically expressed by a vehicle speed calculation formula, and the control current of the
Accordingly, the sedimentation solids of the horizontal centrifugal separating and dehydrating apparatus according to the present invention are discharged by adjusting the discharging amount by the compaction force according to the centrifugal force acting on the inner surface of the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of the present invention should be determined by the following claims.
100: casing 110: solid outlet
120: Separation solution outlet 200: Rotary bowl
230: Solids discharge port 250: Separated liquid discharge port
300: rotating shaft 310: first helical wing
312: supersonic discharge passage 320: second helical wing
400: feeder pipe 500: frame
510: gear box 520: drive motor
530: Vehicle speed motor 540: Bearing block
550: drive pulley 560: vehicle speed adjuster
562: vehicle speed motor inverter 564: drive motor inverter
566: Controller 600:
Claims (4)
Wherein the rotary bowl is divided into a horizontal portion having the same diameter and a conical portion having a gradually decreasing diameter toward the solids discharge port,
Wherein the second helical wing is disposed over a portion of the horizontal portion and a portion of the conical portion.
Wherein the height of the first helical wing on the circumferential surface of the rotating shaft is higher than the height of the second helical wing.
Characterized in that the rotating shaft is electrically connected to the vehicle speed inverter and the controller so as to be proportionally controlled using the vehicle speed load value of the vehicle speed motor even if the solids concentration of the sludge changes in order to maintain the water content of the solid matter at a set value. Centrifugal Centrifugal Dehydrator.
Priority Applications (1)
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KR1020160048301A KR101663827B1 (en) | 2016-04-20 | 2016-04-20 | Multi-screw equipped horizontal decanter type centrifuge separator |
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KR1020160048301A KR101663827B1 (en) | 2016-04-20 | 2016-04-20 | Multi-screw equipped horizontal decanter type centrifuge separator |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106242230A (en) * | 2016-08-30 | 2016-12-21 | 招宏兴 | Mud screw convection drying device and method |
CN107185730A (en) * | 2017-06-09 | 2017-09-22 | 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 |
CN108554654A (en) * | 2018-05-07 | 2018-09-21 | 绍兴文理学院元培学院 | A kind of horizontal spiral discharge sedimentation centrifuge |
KR101913944B1 (en) * | 2017-05-29 | 2018-10-31 | 김은수 | Centrifugal concentrating dehydrator with increased durability and dewatering efficiency |
CN113233735A (en) * | 2021-05-13 | 2021-08-10 | 重庆科技学院 | High-moisture-content sludge rapid dehydration device |
CN115121037A (en) * | 2022-06-15 | 2022-09-30 | 珠海科创环境资源有限公司 | Solid-liquid separation sludge treatment device |
CN115362013A (en) * | 2020-03-24 | 2022-11-18 | 美得华水务株式会社 | Separating device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR19980064869A (en) * | 1998-05-13 | 1998-10-07 | 심호섭 | Vegetable Garbage Dehydrator |
KR20030003511A (en) * | 2001-07-03 | 2003-01-10 | 주식회사 로얄정공 | Horizontal decenter centrifuge for concentration and dehydraion of sludge |
KR101187322B1 (en) * | 2012-02-15 | 2012-10-02 | 주식회사 에취켓 | Screwpress and method for dehydrating rotatable in positive or reverse direction |
-
2016
- 2016-04-20 KR KR1020160048301A patent/KR101663827B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980064869A (en) * | 1998-05-13 | 1998-10-07 | 심호섭 | Vegetable Garbage Dehydrator |
KR20030003511A (en) * | 2001-07-03 | 2003-01-10 | 주식회사 로얄정공 | Horizontal decenter centrifuge for concentration and dehydraion of sludge |
KR101187322B1 (en) * | 2012-02-15 | 2012-10-02 | 주식회사 에취켓 | Screwpress and method for dehydrating rotatable in positive or reverse direction |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106242230A (en) * | 2016-08-30 | 2016-12-21 | 招宏兴 | Mud screw convection drying device and method |
CN106242230B (en) * | 2016-08-30 | 2019-03-26 | 招宏兴 | Sludge screw convection drying device and method |
KR101913944B1 (en) * | 2017-05-29 | 2018-10-31 | 김은수 | Centrifugal concentrating dehydrator with increased durability and dewatering efficiency |
CN107185730A (en) * | 2017-06-09 | 2017-09-22 | 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 |
CN108554654A (en) * | 2018-05-07 | 2018-09-21 | 绍兴文理学院元培学院 | A kind of horizontal spiral discharge sedimentation centrifuge |
CN115362013A (en) * | 2020-03-24 | 2022-11-18 | 美得华水务株式会社 | Separating device |
CN113233735A (en) * | 2021-05-13 | 2021-08-10 | 重庆科技学院 | High-moisture-content sludge rapid dehydration device |
CN113233735B (en) * | 2021-05-13 | 2022-10-18 | 重庆科技学院 | High-moisture-content sludge rapid dehydration device |
CN115121037A (en) * | 2022-06-15 | 2022-09-30 | 珠海科创环境资源有限公司 | Solid-liquid separation sludge treatment device |
CN115121037B (en) * | 2022-06-15 | 2023-10-13 | 珠海科创环境资源有限公司 | Solid-liquid separation sludge treatment device |
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