KR101707329B1 - Apparatus for carrying sludge of thickener - Google Patents

Apparatus for carrying sludge of thickener Download PDF

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Publication number
KR101707329B1
KR101707329B1 KR1020150142690A KR20150142690A KR101707329B1 KR 101707329 B1 KR101707329 B1 KR 101707329B1 KR 1020150142690 A KR1020150142690 A KR 1020150142690A KR 20150142690 A KR20150142690 A KR 20150142690A KR 101707329 B1 KR101707329 B1 KR 101707329B1
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KR
South Korea
Prior art keywords
sludge
sealing water
supply valve
pump
compressed air
Prior art date
Application number
KR1020150142690A
Other languages
Korean (ko)
Inventor
허창환
김상권
손정환
Original Assignee
현대제철 주식회사
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Priority to KR1020150142690A priority Critical patent/KR101707329B1/en
Application granted granted Critical
Publication of KR101707329B1 publication Critical patent/KR101707329B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
    • B01D21/20—Driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention provides an apparatus for transporting sedimentation basin sludge, which can smoothly transport sludge by preventing idle rotation of a transport pump. The apparatus for transporting sedimentation basin sludge according to the present invention comprises: a transport pump disposed in a transport line through which sludge generated in a sedimentation basin is transported to a sludge storage tank; a check valve disposed downstream of the transport pump so as to prevent the sludge from flowing backward; a sealing water supply valve configured to supply sealing water to the transport pump; a compressed-air supply value disposed downstream of the check valve so as to supply compressed air to the transport line; a sealing water-sensing unit configured to sense the supply state of the sealing water; a selection switch configured to set the driving conditions of the transport apparatus and operate the transport apparatus; and a control unit configured to operate the sealing water supply valve and the compressed-air supply valve according to the driving conditions and the operation state of the selection switch before driving of the transport pump and to operate the transport pump according to the sealing water supply state sensed by the sealing water sensing unit.

Description

[0001] APPARATUS FOR CARRYING SLUDGE OF THICKENER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sedimentation sludge transfer apparatus, and more particularly, to a sedimentation sludge transfer apparatus that discharges sludge from a transfer pump through a sludge storage tank, Thereby preventing the idle rotation of the feed pump and allowing the sludge to be smoothly conveyed.

Generally, when various by-products (scale, refractory, oil, silicon oxide, nickel, chromium, etc.) are discharged in the process of smelting steel, the sludge is dried and then subjected to incineration or reprocessing to remove the asphalt raw material It is used for various purposes.

Therefore, the steel mill has a sedimentation basin for sedimentation of the sludge. After the primary treatment in the sedimentation basin, it is transferred to the sludge storage tank through the transfer piping to perform the secondary treatment.

Related prior arts are Korean Utility Model Laid-Open No. 1999-0027327 (July 15, 1999, sludge dewatering device of iron making process).

In the present invention, the sludge generated in the sedimentation tank is sent to the sludge storage tank through the compressed air before the transfer pump is pushed out from the rear end of the sludge tank to discharge the gas in the transfer pump, thereby preventing idling of the transfer pump, The sludge can be transported to the sludge tank.

According to an aspect of the present invention, there is provided a sedimentation sludge transfer apparatus comprising: a transfer pump installed in a transfer pipe for transferring sludge generated in a sedimentation tank to a sludge storage tank; A check valve installed at the downstream end of the transfer pump to block the sludge from flowing backward; A sealing water supply valve for supplying sealing water to the transfer pump; A compressed air supply valve for injecting compressed air into the transfer pipe at the rear end of the check valve; A sealing number sensing unit for sensing a supply state of the sealing water; A selection switch for setting and operating a driving condition of the conveying device; And a control unit for activating the sealing water supply valve and the compressed air supply valve before the driving pump is driven according to the driving condition and the operating state of the selection switch and then operating the feeding pump according to the sealing water supply state of the sealing water sensing unit .

In the present invention, the sealing water supply valve and the compressed air supply valve are commonly connected by a single control line.

In the present invention, the transfer pump is installed below the sedimentation tank.

In the present invention, the feed pump, the sealing water supply valve, and the compressed air supply valve are respectively provided in parallel and the control unit alternately operates the feed pump, the sealing water supply valve, and the compressed air supply valve, .

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The sludge transporting apparatus according to the present invention is characterized in that sludge is pushed out through compressed air before driving the transfer pump at the rear end of the transfer pump for transferring the sludge generated in the sedimentation tank to the sludge storage tank, It is possible to reduce the risk of accidents by preventing the discharge and also to prevent the idle rotation of the transfer pump, so that the sludge can be smoothly transferred.

1 is a block diagram of a sedimentation sludge transfer apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing the application state of a settling sludge transfer apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a method of controlling a transfer apparatus of a clarifier sludge according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a sludge sludge transfer apparatus 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 block diagram of a sedimentation sludge transporting apparatus according to an embodiment of the present invention, and FIG. 2 is a configuration diagram illustrating an application state of a sedimentation sludge transporting apparatus according to an embodiment of the present invention.

1 and 2, a sedimentation sludge transfer apparatus according to an embodiment of the present invention includes a transfer pump 60, a check valve 90, a sealing water supply valve 40, a compressed air supply valve 50, a sealing number sensing unit 20, a selection switch 10, and a control unit 30.

The transfer pump 60 is installed in a transfer pipe 100 for transferring the sludge S generated in the sedimentation unit 70 to the sludge storage tank 80 and pumps the sludge S to be transferred.

At this time, the transfer pump 60 is installed under the sedimentation unit 70, and may be installed in parallel, or may be alternately operated when installed in parallel.

The check valve 90 is provided at the downstream end of the feed pump 60 to block the sludge S from flowing back to the feed pump 60.

That is, when the sludge S is pushed by the compressed air at the rear end of the check valve 90, the sludge S can be pushed toward the sludge storage tank 80 without flowing back toward the transfer pump 60.

The sealing water supply valve 40 supplies sealing water from the sealing water supply pipe 42 to the transfer pump 60 so that the transfer pump 60 can pump the sludge S in the closed state.

The compressed air supply valve 50 injects compressed air from the compressed air supply pipe 52 to the transfer pipe 100 at the rear end of the check valve 90 so that the sludge S can be pushed.

When the compressed air is supplied from the downstream end of the check valve 90, the sludge S is pushed toward the sludge storage tank 80 by the check valve 90 without being pushed to the transfer pump 60 side. When the sludge S is pushed down to the sludge storage tank 80, the sludge S of the sedimentation paper 70 is naturally flown down to the transfer pump 60 installed under the sedimentation paper 70, The sludge gas present inside the pump 60 is sprayed to maintain the sealed state when the feed pump 60 is operated so as to prevent idling.

On the other hand, when the sealing water supply valve 40 and the compressed air supply valve 50 are commonly connected to one control line to operate the sealing water supply valve 40, the compressed air supply valve 50 may be operated together have.

The sealing water sensing unit 20 senses the state of supply of sealing water after the sealing water supply valve 40 is operated and provides the sensed state to the control unit 30. [

The selection switch 10 sets and operates the driving conditions of the conveying device.

That is, the automatic mode and the manual mode can be set through the selection switch 10, the operation time and the idle time can be set in the automatic mode, and the driving and stopping of the transfer pump 60 can be selected in the manual mode. In addition, when the transfer pump 60 is installed in the dual mode, the transfer pump 60 to be driven in the manual mode may be selected.

The control unit 30 operates the sealing water supply valve 40 and the compressed air supply valve 50 before driving the feed pump 60 in accordance with the driving condition and the operation state of the selection switch 10, The feed pump 60 is operated in accordance with the sealing water supply state of the feed pump 20. That is, when the sealing water is supplied to the transfer pump 60, the transfer pump 60 is operated so that the transfer pump 60 can be stably driven.

When the feed pump 60, the sealing water supply valve 40 and the compressed air supply valve 50 are installed in parallel, the control unit 30 is provided with the feed pump 60, (40) and the compressed air supply valve (50), respectively, so that the load burden can be reduced.

As described above, according to the sedimentation sludge transporting apparatus according to the embodiment of the present invention, the sludge generated in the sedimentation tank is pushed out through the downstream of the transporting pump for transporting the sludge to the sludge storage tank through the compressed air before the driving of the transporting pump, It is possible to prevent the manual discharge by the user, thereby reducing the risk of accident, and also preventing the idle rotation of the transfer pump, so that the sludge can be transported smoothly.

3 is a flowchart illustrating a method of controlling a transfer apparatus of a clarifier sludge according to an embodiment of the present invention.

As shown in FIG. 3, in the method of controlling a sludge sludge transporting apparatus according to an embodiment of the present invention, when the control unit 30 is in the automatic mode according to the operation state of the selection switch 10, (S10).

If the operating state of the selection switch 10 is the manual mode, the feed pump 60 can be driven according to the selection of the selection switch 10 irrespective of whether or not the driving time has come.

If the drive time does not come in step S10, the control unit 30 determines whether or not the drive time comes while maintaining the idle state.

However, if the driving time comes in step S10, the control unit 30 activates the sealing water supply valve 40 to supply the sealing water from the sealing water supply pipe 42 to the transfer pump 60 (S20).

The control unit 30 operates the compressed air supply valve 50 to supply the compressed air from the compressed air supply pipe 52 to the transfer pipe 100 at the rear end of the check valve 90 so that the sludge S is supplied to the sludge storage tank 80).

When the compressed air is supplied from the downstream end of the check valve 90, the sludge S is pushed toward the sludge storage tank 80 by the check valve 90 without being pushed to the transfer pump 60 side. When the sludge S is pushed down to the sludge storage tank 80, the sludge S of the sedimentation paper 70 is naturally flown down to the transfer pump 60 installed under the sedimentation paper 70, The sludge gas present inside the pump 60 is sprayed to maintain the sealed state when the feed pump 60 is operated so as to prevent idling.

In operation S20, the control unit 30 operates the sealing water supply valve 40 and the compressed air supply valve 50, and receives a supply state of the sealing water from the sealing water sensing unit 20 to sense whether the sealing water is supplied (S30).

If the number of sealing rings is not detected in step S30, the controller 30 continuously compares the number of sealing rings detected. At this time, a time limit may be set, and a warning may be generated when the sealing number is not detected so that the time limit is exceeded.

However, when the sealing number is detected in step S30, the controller 30 drives the transfer pump 60 to transfer the sludge S (S40).

By operating the compressed air supply valve 50 before driving the feed pump 60 to discharge the sludge gas present in the feed pump 60 while pushing the sludge S to prevent idling of the feed pump 60 .

After driving the feed pump 60 in step S40, the controller 30 determines whether the driving time has expired (S50).

If the drive time is not terminated in step S50, the control unit 30 continues to drive the transfer pump 60. [

However, if the driving time is terminated, the control unit 30 stops the driving of the feed pump 60 and stops the operation of the sealing water supply valve 40 and the compressed air supply valve 50 (S60).

If the operating state of the selection switch 10 is the manual mode, the control unit 30 selects the driving stop of the feeding pump 60 by the selection switch 10 regardless of whether the driving time is ended or not, The operation of the sealing water supply valve 40 and the operation of the compressed air supply valve 50 is stopped.

As described above, according to the method of controlling a sludge transferring apparatus according to an embodiment of the present invention, the sludge is pushed out through the rear end of the transfer pump for transferring the sludge generated in the sludge storage tank to the sludge storage tank through the pre- By ejecting the gas in the transfer pump, it is possible to prevent manual discharge by the user and to reduce the risk of accident, as well as to prevent the idle rotation of the transfer pump, so that the sludge can be transported smoothly.

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.

10: selection switch 20: sealing number sensing unit
30: control unit 40: sealing water supply valve
42: sealing water supply pipe 50: compressed air supply valve
52: Compressed air supply pipe 60: Feed pump
70: Settling basin 80: Sludge storage tank
90: Check valve S: Sludge

Claims (6)

A transfer pump installed in a transfer pipe for transferring sludge generated in a sedimentation tank to a sludge storage tank;
A check valve installed at a downstream end of the transfer pump to block the sludge from flowing backward;
A sealing water supply valve for supplying sealing water to the transfer pump;
A compressed air supply valve for injecting compressed air into the transfer pipe at a rear end of the check valve;
A sealing number sensing unit for sensing a supply state of the sealing water;
A selection switch for setting and operating a driving condition of the conveying device; And
Wherein the control unit controls the pump unit to operate the seal water supply valve and the compressed air supply valve before driving the feed pump according to the drive condition and the operation state of the selection switch, And a control unit for operating the sedimentation sludge.
The apparatus of claim 1, wherein the sealing water supply valve and the compressed air supply valve are commonly connected to one control line.
The apparatus according to claim 1, wherein the transfer pump is installed below the sedimentation tank.
2. The apparatus according to claim 1, wherein the feed pump, the sealing water supply valve, and the compressed air supply valve are provided in parallel, respectively, and the control unit includes a feed pump, a sealing water supply valve, And the valve is operated alternately with respect to the valve.
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KR1020150142690A 2015-10-13 2015-10-13 Apparatus for carrying sludge of thickener KR101707329B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150142690A KR101707329B1 (en) 2015-10-13 2015-10-13 Apparatus for carrying sludge of thickener

Publications (1)

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KR101707329B1 true KR101707329B1 (en) 2017-02-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102203622B1 (en) * 2019-11-25 2021-01-14 김덕수 Sludge conveying system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200324955Y1 (en) * 2003-06-05 2003-09-19 (주)범한엔지니어링 종합건축사 사무소 Sweage water treatment plant without underground tunnel
KR200328399Y1 (en) * 2003-06-25 2003-09-29 김희원 Transport system of sludge by a density measurement and water level of precipitation processing tank
KR20100015151A (en) * 2008-08-04 2010-02-12 서울특별시 Sealing water supply valve of pump
KR101189747B1 (en) * 2012-07-11 2012-10-11 전남대학교산학협력단 Water supply and discharge purifying system for water tank type inland aquaculture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200324955Y1 (en) * 2003-06-05 2003-09-19 (주)범한엔지니어링 종합건축사 사무소 Sweage water treatment plant without underground tunnel
KR200328399Y1 (en) * 2003-06-25 2003-09-29 김희원 Transport system of sludge by a density measurement and water level of precipitation processing tank
KR20100015151A (en) * 2008-08-04 2010-02-12 서울특별시 Sealing water supply valve of pump
KR101189747B1 (en) * 2012-07-11 2012-10-11 전남대학교산학협력단 Water supply and discharge purifying system for water tank type inland aquaculture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102203622B1 (en) * 2019-11-25 2021-01-14 김덕수 Sludge conveying system

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