US3920558A - Mud scraping device - Google Patents

Mud scraping device Download PDF

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Publication number
US3920558A
US3920558A US429634A US42963473A US3920558A US 3920558 A US3920558 A US 3920558A US 429634 A US429634 A US 429634A US 42963473 A US42963473 A US 42963473A US 3920558 A US3920558 A US 3920558A
Authority
US
United States
Prior art keywords
carriage
scraping
solids
common wall
mud
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US429634A
Other languages
English (en)
Inventor
Henric Lind
Jorgen Pihl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polypur Forsaljnings AB
Original Assignee
Polypur Forsaljnings AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polypur Forsaljnings AB filed Critical Polypur Forsaljnings AB
Application granted granted Critical
Publication of US3920558A publication Critical patent/US3920558A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E02F3/8866—Submerged units self propelled
    • 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
    • B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
    • 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
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9243—Passive suction heads with no mechanical cutting means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E02F5/285—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with drag buckets or scraper plates

Definitions

  • ABSTRACT The floors of a multi-compartment settling basin are freed of settled solids by a carriage traveling on a track extending along the top of a common wall separating two adjacent compartments, a scraper and associated suction duct being suspended from each of the two opposite sides of the carriage in proximity to the corresponding floor.
  • the present invention refers to a device for scraping off and discharging mud from settling basins or the like.
  • the device includes at least one scraper which is movable along the bottom of the basin to release mud therefrom and at least one discharging device for the released mud.
  • scrapers which are moved along the bottom of the basin in order to collect the mud deposited thereon. These scrapers have been driven by means of chains or wires connected to motors which are stationary at one end of the basin. Separately arranged mud discharging or drawing devices of different design have also been used for discharging the mud.
  • the purpose of the present invention is to remove the above indicated disadvantages and to provide a device of the kind described above which is simple and inexpensive to produce and maintain and which functions satisfactorily even when the operation conditions are hard. This is accomplished by giving the device the characteristics which appear from the following claims.
  • FIGURE shows a perspective view of a mud scraping device according to one embodiment of the invention.
  • the FIGURE shows a mud scraping device which is intended to be used for simultaneous scraping of the bottom of two adjacent settling basins l and 2.
  • the mud scraping device according to the present invention is arranged on a carriage 3 which can be driven to and fro along a track 4 on the upper part of a wall 5 which separates the two settling basins l and 2.
  • the carriage is provided with supporting wheels 6 and guiding wheels (not shown) for its guiding along track 4.
  • the movement of carriage 3 is performed by means of a motor 7 mounted on the carriage, said motor being coupled to driving wheels or the like (not shown).
  • a scraping device is arranged at the lower part of supporting frame 8. in the embodiment shown on the drawing said scraping device consists of two scrapers 10 which are arranged in V-form with the apex thereof being near the lower part of the inclined bottom 9.
  • the upper parts of scrapers 10 are secured to supporting frame 8 and the lower parts of scrapers 10 are coupled to each other by means of a coupling means 11 which also supports a supporting wheel 12 which is intended to engage bottom 9 and to support scrapers 10 immediately above said bottom.
  • Coupling means 11 also supports the lower part of a discharging or drawing device for mud released by scrapers 10.
  • the mud drawing device consists of a mammoth or air lift pump 13 the intake port of which being located adjacent the lower ends of scrapers 10.
  • Both mammoth pumps 13 for the suction of mud from settling basins 1 and 2 are driven by a common compressor 14 mounted on carriage 3.
  • the outlet ports of pumps 13 are located above two mud grooves 16 which are mounted on the upper part of wall 5 above the highest water level in settling basins 1 and 2 and which convey the mud to devices not shown for further treatment.
  • scrapers 10 do not need to be arranged in V-form but one single scraper can be used which is perpendicular to the moving direction of carriage 3, or a turnable scraper can be used which is inclined in different directions depending on the moving direction of the carriage.
  • a combined solids scraper and aspirator for a multicompartment settling basin having at least two adjacent compartments (1,2) separated by a common wall (5) projecting above the level of said basin, which comprises track means (4) disposed along the top of said common wall (5), a carriage (3) traveling on said track (4), means (7) for driving said carriage, separate scraping means (10) in each such compartment (1,2) suspended from opposite sides of said carriage (3) in proximity to the respective compartment floors (9), suction duct means (13) carried by said carriage in association with each such scraping means (10) for removing the solids scraped thereby, pump means (13) coupled to said suction duct means for pumping said solids .through said duct means, and at least one collector channel extending along said common wall for receiving said solids from said duct means away from said compartments.
  • Device according to claim 1 characterized in said pump means is an air lift pump (13) to which compression air is fed by means of a common compressor (14) mounted on the carriage (3).
  • each scraping device consists of two scrapers (10) which are arranged in V-form with the apex extending away from the carriage (3).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)
  • Treatment Of Sludge (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
US429634A 1973-01-03 1973-12-28 Mud scraping device Expired - Lifetime US3920558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7300072A SE375915B (enrdf_load_stackoverflow) 1973-01-03 1973-01-03

Publications (1)

Publication Number Publication Date
US3920558A true US3920558A (en) 1975-11-18

Family

ID=20316238

Family Applications (1)

Application Number Title Priority Date Filing Date
US429634A Expired - Lifetime US3920558A (en) 1973-01-03 1973-12-28 Mud scraping device

Country Status (11)

Country Link
US (1) US3920558A (enrdf_load_stackoverflow)
JP (1) JPS5047430A (enrdf_load_stackoverflow)
CA (1) CA1020878A (enrdf_load_stackoverflow)
DE (1) DE2364442A1 (enrdf_load_stackoverflow)
DK (1) DK143053C (enrdf_load_stackoverflow)
ES (1) ES421985A1 (enrdf_load_stackoverflow)
FR (1) FR2212298B1 (enrdf_load_stackoverflow)
GB (1) GB1437546A (enrdf_load_stackoverflow)
IT (1) IT1001078B (enrdf_load_stackoverflow)
NO (1) NO132475C (enrdf_load_stackoverflow)
SE (1) SE375915B (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004257A1 (en) * 1983-05-05 1984-11-08 Zander & Ingestroem Scraping device for sedimentation basins
US4978447A (en) * 1990-01-26 1990-12-18 Ford W. Hall Company Self-propelled apparatus for cleaning a water treatment tank
US6547964B1 (en) 1999-09-08 2003-04-15 Robert C. Rajewski Mud tank cleaning system
US6607666B2 (en) * 2001-07-06 2003-08-19 Robert C. Rajewski Mud tank cleaning system
US20040182778A1 (en) * 2003-03-20 2004-09-23 Hanlon Patrick William Airlift pump in a mechanical clarifier
US20090020336A1 (en) * 2005-10-19 2009-01-22 Clyde Bohnsack Drilling fluid flow facilitation
US9795901B2 (en) * 2016-03-07 2017-10-24 Newterra Ltd. Sludge extraction apparatus and method
US10119245B2 (en) 2015-08-25 2018-11-06 Kaiser Premier Llc Vacuum unit and truck with air and water
US10576503B2 (en) * 2014-11-26 2020-03-03 M-I L.L.C. Apparatus, system and method for moving material discharged from a vibratory separator
CN114100203A (zh) * 2021-12-01 2022-03-01 连云港赣榆通海污水处理有限公司 基于市政污水处理沉淀池用除藻装置与方法
CN114934557A (zh) * 2022-07-04 2022-08-23 南京信息工程大学 一种连续运行的河道清淤船
CN117585743A (zh) * 2024-01-18 2024-02-23 浙江浙达水业有限公司 一种污水处理调节池及调节方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107434346A (zh) * 2017-08-21 2017-12-05 苏州市玄天环保科技有限公司 一种淤泥回收处理设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396102A (en) * 1967-07-10 1968-08-06 Fmc Corp Sewage treatment process and apparatus
US3464559A (en) * 1967-02-23 1969-09-02 Degremont Sa Apparatus for the biological purification of waste water
US3526591A (en) * 1969-02-28 1970-09-01 Fmc Corp Sewage treatment structure
US3822788A (en) * 1971-11-01 1974-07-09 Johnson Construction Co Ab Sewage flocculating and sedimentation tank unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464559A (en) * 1967-02-23 1969-09-02 Degremont Sa Apparatus for the biological purification of waste water
US3396102A (en) * 1967-07-10 1968-08-06 Fmc Corp Sewage treatment process and apparatus
US3526591A (en) * 1969-02-28 1970-09-01 Fmc Corp Sewage treatment structure
US3822788A (en) * 1971-11-01 1974-07-09 Johnson Construction Co Ab Sewage flocculating and sedimentation tank unit

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004257A1 (en) * 1983-05-05 1984-11-08 Zander & Ingestroem Scraping device for sedimentation basins
GB2146548A (en) * 1983-05-05 1985-04-24 Zander & Ingestroem Scraping device for sedimentation basins
US4978447A (en) * 1990-01-26 1990-12-18 Ford W. Hall Company Self-propelled apparatus for cleaning a water treatment tank
US6547964B1 (en) 1999-09-08 2003-04-15 Robert C. Rajewski Mud tank cleaning system
US6607666B2 (en) * 2001-07-06 2003-08-19 Robert C. Rajewski Mud tank cleaning system
US20040182778A1 (en) * 2003-03-20 2004-09-23 Hanlon Patrick William Airlift pump in a mechanical clarifier
US20090020336A1 (en) * 2005-10-19 2009-01-22 Clyde Bohnsack Drilling fluid flow facilitation
US10576503B2 (en) * 2014-11-26 2020-03-03 M-I L.L.C. Apparatus, system and method for moving material discharged from a vibratory separator
US10119245B2 (en) 2015-08-25 2018-11-06 Kaiser Premier Llc Vacuum unit and truck with air and water
US10920397B2 (en) 2015-08-25 2021-02-16 Kaiser Premier Llc Nozzle and vacuum unit with air and water
US9795901B2 (en) * 2016-03-07 2017-10-24 Newterra Ltd. Sludge extraction apparatus and method
CN114100203A (zh) * 2021-12-01 2022-03-01 连云港赣榆通海污水处理有限公司 基于市政污水处理沉淀池用除藻装置与方法
CN114934557A (zh) * 2022-07-04 2022-08-23 南京信息工程大学 一种连续运行的河道清淤船
CN114934557B (zh) * 2022-07-04 2023-09-19 南京信息工程大学 一种连续运行的河道清淤船
CN117585743A (zh) * 2024-01-18 2024-02-23 浙江浙达水业有限公司 一种污水处理调节池及调节方法
CN117585743B (zh) * 2024-01-18 2024-04-16 浙江浙达水业有限公司 一种污水处理调节池及调节方法

Also Published As

Publication number Publication date
GB1437546A (en) 1976-05-26
ES421985A1 (es) 1976-05-01
DK143053B (da) 1981-03-23
FR2212298A1 (enrdf_load_stackoverflow) 1974-07-26
IT1001078B (it) 1976-04-20
DK143053C (da) 1981-10-26
DE2364442A1 (de) 1974-07-04
JPS5047430A (enrdf_load_stackoverflow) 1975-04-26
AU6412674A (en) 1975-07-03
CA1020878A (en) 1977-11-15
FR2212298B1 (enrdf_load_stackoverflow) 1981-01-02
SE375915B (enrdf_load_stackoverflow) 1975-05-05
NO132475C (enrdf_load_stackoverflow) 1975-11-19
NO132475B (enrdf_load_stackoverflow) 1975-08-11

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