KR101663827B1 - Multi-screw equipped horizontal decanter type centrifuge separator - Google Patents

Multi-screw equipped horizontal decanter type centrifuge separator Download PDF

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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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South Korea
Prior art keywords
solids
discharge port
sludge
supernatant
wing
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KR1020160048301A
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Korean (ko)
Inventor
윤종천
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주식회사 무한기술
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B1/00Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20Centrifuges 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/02Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12Presses 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
    • B30B9/14Presses 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/008Control or steering systems not provided for elsewhere in subclass C02F
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/125Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/127Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/06Sludge reduction, e.g. by lysis

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

MULTI-SCREW EQUIPPED HORIZONTAL DECANTER TYPE CENTRIFUGE SEPARATOR [0002]
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 casing 100, a rotary bowl 200, a rotating shaft 300, One helical wing 310 and a second helical wing 320.
The casing 100 forms an outer shape of a horizontal centrifugal separating and condensing dehydrator for separating solids and separating liquid (supernatant) from supplied sludge using centrifugal force and concentrating and dehydrating the solids, Thereby forming a solid outlet 110.
The separation liquid discharge port 120 is provided at one side with respect to the axial direction of the casing 100 to discharge the separated liquid separated from the sludge. In addition, the solids discharge port 110 is provided on the other side of the casing 100 to discharge the solid matter separated from the sludge.
Particularly, the casing 100 is supported on both sides of the frame 500 in the axial direction. In addition, the frame 500 is provided with the dustproof portion 600 at a portion contacting the ground, so that the frame 500 can absorb the vibration.
At this time, the anti-vibration part 600 may be variously applied to anti-vibration rubber or coil spring, and is coupled to the lower side of the frame 500 by various assembling methods such as bolting. Particularly, the dustproof portion 600 may be disposed at four or more places on each bottom surface of the pair of frames 500 for stably supporting the frame 500.
In addition, the separation liquid outlet 120 serves to discharge the separated liquid (supernatant) centrifugally separated from the sludge, and the solid material discharge port 110 discharges the solid material to be squeezed from the sludge. Accordingly, the separation liquid discharge port 120 and the solid matter discharge port 110 can be positioned below the casing 100 to induce a natural drop of the separated liquid and the solid matter by gravity, respectively.
In addition, the casing 100 may be disposed so as to be inclined upward or downward from the solids discharge port 110 to the separation liquid discharge port 120, or may be disposed parallel to the floor.
Meanwhile, the rotary bowl 200 is rotatably inserted into the casing 100. At this time, the rotary bowl 200 connects the large shaft 210 to one side and the small shaft 220 to the other side to serve as a rotation support shaft. The large axis 210 and the small axis 220 are rotatably connected to the corresponding frame 500, respectively.
The frame 500 forms a bearing block 540 therein and the bearing block 540 rotatably connects the large diameter shaft 210 and the small diameter shaft 220 to each other.
In particular, the bearing block 540 serves to smoothly rotate the rotary bowl 200 by minimizing the friction between the large diameter shaft 210, the casing 100, and the small shaft 120 and the casing 100.
In addition, a driving pulley 550 for transmitting a rotational force to the rotary bowl 200 is mounted on the small shaft 220. The large-diameter shaft 210 is provided with a vehicle speed regulator 560.
The vehicle speed regulator 560 includes a vehicle speed motor 530 that transmits the driving force for the vehicle speed rotation while the rotating bowl 200 and the rotating shaft 300 are operated in conjunction with each other. In addition, the frame 500 connecting one side of the casing 100 has a gear box 510 therein.
At this time, the rotary bowl 200 is connected to the driving pulley 550 and receives power through a belt connected to the driving motor 520. The drive pulley 550 may be connected to the drive motor 520 by various power transmission devices. The driving motor 520 is fixed to the frame 500.
The rotary bowl 200 is formed with a separate liquid discharge port 250 connected to the separation liquid discharge port 120 and a solid discharge port 230 connected to the solid discharge port 110. That is, the rotary bowl 200 has a separate liquid discharge port 250 formed at one side thereof and a solids discharge port 230 formed at the other side thereof. Particularly, one or more separate liquid discharge ports 250 may be formed on one side of the rotary bowl 200 along the axial direction thereof, and the solids discharge port 230 may be formed on the other side along the axial direction of the rotary bowl 200 One or more of them may be formed.
Further, the rotary shaft 300 is rotatably inserted into the rotary bowl 200. The rotary shaft 300 is rotated in the same or different direction as the rotary bowl 200 and can rotate at a different rotational speed from the rotary bowl 200. In particular, the rotary bowl 200 and the rotary shaft 300 may be provided to rotate at a vehicle speed.
At this time, the casing 100 axially inserts the feeder pipe 400 on one side or the other side. The feeder pipe 400 is supported by the bearing block 540 of the frame 500 and serves to guide the outside sludge into the inside of the rotating shaft 300.
Particularly, the feeder pipe 400 is fixedly inserted into the other side of the casing 100, and is rotatably inserted into the rotary bowl 200 and the rotary shaft 300. This is to prevent interference between the rotating bowl 200 and the rotating shaft 300.
In addition, the rotating shaft 300 forms one or more sludge discharge openings 330 along the circumferential direction on the peripheral surface. The sludge discharge port 330 serves to guide sludge introduced into the rotary shaft 300 into the rotary bowl 200 by a centrifugal force.
At this time, the rotary shaft 300 and the rotary bowl 200 rotate at different rotational speeds, so that the sludge discharged through the sludge discharge port 330 is firstly centrifugally separated into the separated liquid and the solid matter by the centrifugal force.
As the sludge is centrifuged, the solids having a large specific gravity are attached to the inner wall of the rotary bowl 200, and the separated liquid having a small specific gravity flows along the peripheral surface of the rotary shaft 300 in the direction of the separate liquid discharge port 250.
The rotary shaft 300 is rotated and rotated at a speed of about 3 to 30 rpm / min relative to the rotary bowl 200 to perform concentration and dehydration.
In particular, the rotary shaft 300 forms a spiral first helical wing 310 that advances along the axial direction in one direction corresponding to the rotational direction.
The first helical wing 310 rotates together with the rotating shaft 300 and forcibly feeds the solids toward the solids discharge port 230.
At this time, the separation liquid contained in the solids can be transferred toward the solids discharge port 230 by the first helical wings 310. In this case, the water content of the solid becomes high.
Thus, the first helical wing 310 forms a supersonic discharge passage 312 adjacent to the surface of the rotating shaft 300. At this time, the supernatant discharge passage 312 is formed in a non-contact manner along the first helical wing 310 so that the first helical wing 310 does not deform or break when the solids are forcibly transported.
Therefore, the separated liquid contained in the solid matter forcibly conveyed toward the solids discharge port 230 flows out to the separated liquid discharge port 250 side along the supernatant discharge passage 312.
At this time, the sludge injected through the feeder pipe 400 is settled on the inner surface of the rotary bowl 200 by the centrifugal force of the rotating rotary bowl 200.
Of course, one or more of the first helical wings 310 may be formed on the circumferential surface of the rotary shaft 300 in the same direction, but one for the sake of convenience. In addition, the first helical wings 310 are formed along the entire circumferential surface along the axial direction of the rotating shaft 300. At this time, the first helical wing 310 has a height that is simple contact with the inner surface of the rotary bowl 200 at the time of rotation, or has a predetermined space at the inner surface of the rotary bowl 200.
Meanwhile, the rotary shaft 300 has a second helical wing 320 which forms a helical trajectory in the other direction on the circumferential surface along the axial direction.
The second helical wings 320 are continuously formed in the circumferential surface of the rotating shaft 300 in a spiral path through the supernatant discharge passage 312 and are settled on the inner bottom of the rotating bowl 200, The speed of the solid material transferred to the discharge port 230 side is lowered to function as a function cake. At this time, the second helical wing 320 is formed in a direction opposite to the helical direction of the first helical wing 310.
The second helical wings 320 are formed continuously on the circumferential surface of the rotating shaft 300 through the supernatant discharge passage 312 and are formed to be lower than the height of the first helical wings 310.
At this time, the rotary bowl 200 is divided into a horizontal portion 260 having the same diameter and a conical portion 270 having a diameter gradually reduced toward the solids discharge port 230.
Since the height of the second helical wings 320 is lower than the height of the first helical wings 310, a part of the solids can be moved toward the solids discharge port 230, The first spiral wing 310 and the second spiral wing 320 are prevented from being damaged or deformed.
The second helical wing 320 is disposed over a part of the horizontal part 260 and a part of the conical part 270.
The first helical wing 310 forcibly transfers the sludge toward the solids discharge port 230 while the second helical wings 320 transfer the sludge toward the solids discharge port 230 According to the predetermined blocking, the solid material having a reduced moisture content in the discharged sludge is pressurized and conveyed to the solids discharge port 230.
That is, the second helical wings 320 are separated from the sludge by the inner side of the rotary bowl 200, and the solids precipitated in the inner wall of the rotary bowl 200 are reduced toward the solids discharge port 230 Forced transfer.
The solids precipitated on the inner wall of the rotating bowl 200 are separated from the separated liquid by the spiral action and the centrifugal force of the first spiral wing 310 of the rotating shaft 300 and are transported toward the solids discharge port 230 , The function of the solid material discharged by the action of the pressing by the second helical wing 320 is further reduced.
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]
Figure 112016038054719-pat00001

As a result, the heavy solid precipitated in the inner wall of the rotary bowl 200 is transferred to the conical portion 270 by the spiral action and centrifugal pressure of the first spiral wing 310, The light solids are returned to the horizontal portion 260 by the second helical wings 320 to further increase the centrifugal force, thereby decreasing the water content of the discharged solids, and adjusting the discharged solid fraction and the discharge amount.
Particularly, as the rotating shaft 300 and the vehicle speed controlling controller 566 rotate at a vehicle speed higher than the rotating bowl 200, the vehicle speed rpm is controlled by the centrifugal pressure and the solids concentration of the sludge, The discharge speed is reduced by the vehicle speed controller 566.
That is, the vehicle speed regulator 560 is connected to the vehicle speed motor 530, and the vehicle speed motor 530 is electrically connected to the vehicle speed motor inverter 562 and the controller 566. Thus, the braking current corresponding to the concentration of the sludge, the settled solids discharge pressure, and the conveying torque is applied to the vehicle speed motor 530 through the vehicle speed regulator 560 to the vehicle speed inverter 562, The controller 566 compares the set range with the deviation and instructs the vehicle speed motor 530 to set the vehicle speed.
The vehicle speed inverter 562 transmits the brake signal to the drive motor inverter 564 and the drive motor inverter 564 transmits the brake signal to the drive motor 520, 220).
In particular, the controller 566 starts the speed control of the vehicle speed motor 530 in accordance with the speed change of the driving motor 520. [
At this time, the inputted two rotational speeds RPM are numerically expressed by a vehicle speed calculation formula, and the control current of the vehicle speed motor 530 is proportionally controlled according to the difference of the values (i.e., the rotational speed value). That is, the rotational speed of the vehicle speed motor 530 is continuously controlled to keep the vehicle speed constant even if the rotational speed of the driving motor 520 changes.
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 rotating bowl 200 and the vehicle speed of the rotating shaft 300, .
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)

  1. A rotary bowl for forming a supernatant 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 toward the solids discharge port side through the supernatant discharge passage so as to be continuously formed in the other direction along a spiral trace on the peripheral surface of the rotating shaft, Includes a second helical wing that cakes,
    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.
  2. delete
  3. The method according to claim 1,
    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.
  4. The method according to claim 1,
    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.
KR1020160048301A 2016-04-20 2016-04-20 Multi-screw equipped horizontal decanter type centrifuge separator KR101663827B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
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
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

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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 (4)

* Cited by examiner, † Cited by third party
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
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

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