EP2199468A1 - Device for mixing soil materials - Google Patents

Device for mixing soil materials Download PDF

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Publication number
EP2199468A1
EP2199468A1 EP09175732A EP09175732A EP2199468A1 EP 2199468 A1 EP2199468 A1 EP 2199468A1 EP 09175732 A EP09175732 A EP 09175732A EP 09175732 A EP09175732 A EP 09175732A EP 2199468 A1 EP2199468 A1 EP 2199468A1
Authority
EP
European Patent Office
Prior art keywords
mixing
drums
rotation
another
axes
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.)
Granted
Application number
EP09175732A
Other languages
German (de)
French (fr)
Other versions
EP2199468B1 (en
Inventor
Ari Männikkö
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.)
ALLU STAMIX Oy
Original Assignee
Allu Finland Oy
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 Allu Finland Oy filed Critical Allu Finland Oy
Publication of EP2199468A1 publication Critical patent/EP2199468A1/en
Application granted granted Critical
Publication of EP2199468B1 publication Critical patent/EP2199468B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches

Definitions

  • the present invention relates to a device for mixing soil materials, especially for mixing a blend component directly into the soil materials in the ground, the device comprising at least two mixing drums rotatable about their axes of rotation, which are at a short distance from one another and have inner ends and outer ends, which are further away from one another than the inner ends, between the inner ends of the drums a fixing frame on which the mixing drums are supported, and a plunging arm, the lower end of which is fixed to the fixing frame and at the upper end of which are attachment means for attaching to a power machine extension arm.
  • the aim of the invention is to solve this problem by improving the device so that the frame will no longer form a dead zone in the working direction, nor hinder the working motion into the material to be stabilised or into the ground.
  • the device according to the embodiment comprises two mixing drums 2 rotatable about their axes of rotation, which are at a short distance from one another. Between the drums 2 is fixing frame 14 comprised of short pipes with a relatively large diameter. The lower end of the plunging arm 1 is fixed to the fixing frame and at the upper end of the plunging arm 1 are attachment means 10 for attaching to a power tool extension arm.
  • the novel aspect of the invention is that the axes of rotation of the mixing drums 2 are inclined in comparison to the plane perpendicular to the vertical axis of the device in such a way that when the plunging arm 1 is in the vertical direction, the axes of rotation of the mixing drums 2 slant downwards towards the outer ends of the drums.
  • the ends of the mixing drums 2 closest to one another are essentially closer to one another at their lower edges than at their upper edges.
  • the distance between the lower edges of the said ends of the drums 2 is preferably less than the minimum thickness of the plunging arm.
  • the mixing drums 2 are the shape of a truncated cone and the angle of inclination of the axes of rotation of the drums with respect to the horizontal plane is preferably about half the coning angle of the drum.
  • the lower part of the drums 2 is horizontal, which is advantageous if the material is mixed in a flat-bottomed container.
  • On the outer surface of the drums 2 is a desired number of mixing blades or wings 11 of a desired shape. Between the lower edges of the mixing drums 2 is preferably a fixed projection 12 extending to the level of the blades or wings 11 of the mixing drums or below them, when the plunging arm 1 is in the vertical direction. In this case, the blades or wings 11 will not touch the bottom of the container in container mixing.
  • the suspension and rotation of the mixing drums 2 is preferably carried out by having hydraulic motors 3 inside the mixing drums, on the bearings of which motors the mixing drums are mounted. In this case, no separate power transmission with chains, cogwheels or shafts is required. Nor is a separate motor cowling required in the frame, which would be driven into the ground during operation and would for its part hinder the moving of the device.
  • Reference numeral 8 indicates hydraulic pipes or tubes, which lead to each motor 3 separately inside the plunging arm 1.
  • the volume flow required by the hydraulic motors 3 of two or more drums 2 is distributed essentially equally by means of small but high-speed hydraulic pumps connected to the same shaft. Therefore, an individual mixing drum 2 cannot rotate essentially slower than the other drums, even if it has a higher load.
  • the pumps may be in the actuator, that is the power machine, or in the mixing device according to the invention. Connecting the pumps mechanically to rotate at essentially the same speed may also be carried out by other means than by connecting the pumps on the same shaft.
  • the distribution of the volume flow is not realised with flow distribution pumps or flow distribution valves, but the drum motors are variable displacement motors, the speed of rotation of which is maintained essentially the same by adjusting the rotational volume as the incoming volume flows change.
  • variable displacement motors and flow distribution It is also possible to use variable displacement motors and flow distribution.
  • the drums will rotate at the same speed, but the rotational volume of all drums is adjusted so that a greater torque will become available. In this case, the speed of rotation will obviously decrease, because the installed power is constant. A high torque may be required when the soil has a high shearing strength.
  • the transitional area between the body of the hydraulic motor 3 and the rotating hub 5 is sealed with a replaceable gasket, which is kept in place with an opening band 7.
  • the mixing drum 2 is fixed to the flange of the rotating hub 5 of the hydraulic motor 3 with a flange joint.
  • the hydraulic motor 3 is in turn fixed to the mounting flange 4 of the body 14 with a flange joint.
  • the invention is not limited to the above embodiment.
  • the mixing drums 2 and their axes of rotation would be seen at an angle of 120° with respect to one another.
  • One structural alternative could also be a structure where there are two of the first presented drum structures in succession. This alternative could come into question when high capacity is required.
  • the simple structure of the device according to the invention makes it lightweight, which means that only sufficient hydraulic power from an excavator is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention relates to a device for mixing soil materials, especially for mixing a blend component directly into the soil materials in the ground. The device comprises at least two mixing drums (2) rotatable about their axes of rotation, which are at a short distance from one another. Between the drums (2) a fixing frame (14) to which is fixed a plunging arm (1). At the upper end of plunging arm (1) are attachment means (10) for attaching to a power machine extension arm. The axes of rotation of the mixing drums (2) are inclined in comparison to the plane perpendicular to the vertical axis of the device in such a way that when the plunging arm (1) is in the vertical direction, the axes of rotation of the mixing drums (2) slant downwards towards the outer ends of the drums. In this case the ends of the mixing drums closest to one another are essentially closer to one another at their lower edges than at their upper edges. Due to this, the body of the device does not form a dead zone which would resist the working motion.

Description

  • The present invention relates to a device for mixing soil materials, especially for mixing a blend component directly into the soil materials in the ground, the device comprising at least two mixing drums rotatable about their axes of rotation, which are at a short distance from one another and have inner ends and outer ends, which are further away from one another than the inner ends, between the inner ends of the drums a fixing frame on which the mixing drums are supported, and a plunging arm, the lower end of which is fixed to the fixing frame and at the upper end of which are attachment means for attaching to a power machine extension arm.
  • This type of device is known from the Applicant's patent publication FI-107629 . In this known device, the problem is that when the device is plunged in the working direction into the mass to be stabilised, the frame of the device forms a dead zone, which hinders or resists the working motion. This problem arises especially with soils with a relatively high shearing strength.
  • From the publications US 4133397 A1 and JP 2007262819 is known a device for mixing soil materials, wherein the body branches and is fixed to those ends of the drums which are further away from one another. The body extending beyond the drums or at least to the outer edge of the mixing area hinders the work and the mixing process.
  • The aim of the invention is to solve this problem by improving the device so that the frame will no longer form a dead zone in the working direction, nor hinder the working motion into the material to be stabilised or into the ground.
  • This aim is achieved by means of the invention, on the basis of the characteristics disclosed in the appended claim 1.
  • Preferred embodiments of the invention are disclosed in the dependent claims.
  • One embodiment of the invention is illustrated in the following with reference to the appended drawings, in which:
    • Figure 1
    shows the device according to the invention as a cross-section along line A-A of Figure 2;
    Figure 2
    shows the device according to the invention as seen from the side;
    Figure 3
    shows the same device as a perspective view diagonally from above; and
    Figure 4
    shows the same device as seen from the front.
  • The device according to the embodiment comprises two mixing drums 2 rotatable about their axes of rotation, which are at a short distance from one another. Between the drums 2 is fixing frame 14 comprised of short pipes with a relatively large diameter. The lower end of the plunging arm 1 is fixed to the fixing frame and at the upper end of the plunging arm 1 are attachment means 10 for attaching to a power tool extension arm.
  • The novel aspect of the invention is that the axes of rotation of the mixing drums 2 are inclined in comparison to the plane perpendicular to the vertical axis of the device in such a way that when the plunging arm 1 is in the vertical direction, the axes of rotation of the mixing drums 2 slant downwards towards the outer ends of the drums. In this case, the ends of the mixing drums 2 closest to one another are essentially closer to one another at their lower edges than at their upper edges. The distance between the lower edges of the said ends of the drums 2 is preferably less than the minimum thickness of the plunging arm.
  • The mixing drums 2 are the shape of a truncated cone and the angle of inclination of the axes of rotation of the drums with respect to the horizontal plane is preferably about half the coning angle of the drum. In this case, the lower part of the drums 2 is horizontal, which is advantageous if the material is mixed in a flat-bottomed container. On the outer surface of the drums 2 is a desired number of mixing blades or wings 11 of a desired shape. Between the lower edges of the mixing drums 2 is preferably a fixed projection 12 extending to the level of the blades or wings 11 of the mixing drums or below them, when the plunging arm 1 is in the vertical direction. In this case, the blades or wings 11 will not touch the bottom of the container in container mixing.
  • The suspension and rotation of the mixing drums 2 is preferably carried out by having hydraulic motors 3 inside the mixing drums, on the bearings of which motors the mixing drums are mounted. In this case, no separate power transmission with chains, cogwheels or shafts is required. Nor is a separate motor cowling required in the frame, which would be driven into the ground during operation and would for its part hinder the moving of the device. Reference numeral 8 indicates hydraulic pipes or tubes, which lead to each motor 3 separately inside the plunging arm 1.
  • In a preferred embodiment of the invention, the volume flow required by the hydraulic motors 3 of two or more drums 2 is distributed essentially equally by means of small but high-speed hydraulic pumps connected to the same shaft. Therefore, an individual mixing drum 2 cannot rotate essentially slower than the other drums, even if it has a higher load. The pumps may be in the actuator, that is the power machine, or in the mixing device according to the invention. Connecting the pumps mechanically to rotate at essentially the same speed may also be carried out by other means than by connecting the pumps on the same shaft.
  • According to another preferred embodiment of the invention, the distribution of the volume flow is not realised with flow distribution pumps or flow distribution valves, but the drum motors are variable displacement motors, the speed of rotation of which is maintained essentially the same by adjusting the rotational volume as the incoming volume flows change.
  • It is also possible to use variable displacement motors and flow distribution. The drums will rotate at the same speed, but the rotational volume of all drums is adjusted so that a greater torque will become available. In this case, the speed of rotation will obviously decrease, because the installed power is constant. A high torque may be required when the soil has a high shearing strength.
  • In a preferred embodiment of the invention, the transitional area between the body of the hydraulic motor 3 and the rotating hub 5 is sealed with a replaceable gasket, which is kept in place with an opening band 7. The mixing drum 2 is fixed to the flange of the rotating hub 5 of the hydraulic motor 3 with a flange joint. The hydraulic motor 3 is in turn fixed to the mounting flange 4 of the body 14 with a flange joint.
  • On the outside of the plunging arm 1, above each mixing drum 2, are fixed stabiliser feed pipes 9 opening directly above the mixing drums 2.
  • It is obvious that the invention is not limited to the above embodiment. There may be more than two mixing drums 2. For example, in a structure with three drums, from above the mixing drums 2 and their axes of rotation would be seen at an angle of 120° with respect to one another. One structural alternative could also be a structure where there are two of the first presented drum structures in succession. This alternative could come into question when high capacity is required. The simple structure of the device according to the invention makes it lightweight, which means that only sufficient hydraulic power from an excavator is required.

Claims (9)

  1. A device for mixing soil materials, especially for mixing a blend component directly into the soil materials in the ground, the device comprising at least two mixing drums (2) rotatable about their axes of rotation, which are at a short distance from one another and have inner ends and outer ends, which are further away from one another than the inner ends, between the inner ends of the drums (2) a fixing frame (14) on which the mixing drums are supported, and a plunging arm (1), the lower end of which is fixed to the fixing frame (4) and at the upper end of which are attachment means (10) for attaching to a power machine extension arm, characterised in that the axes of rotation of the mixing drums (2) are inclined in comparison to the plane perpendicular to the vertical axis of the device in such a way that when the plunging arm (1) is in the vertical direction, the axes of rotation of the mixing drums (2) slant downwards towards the outer ends of the drums, whereupon the inner ends of the mixing drums closest to one another are essentially closer to one another at their lower edges than at their upper edges.
  2. A device as claimed in claim 1, characterised in that the mixing drums (2) are the shape of a truncated cone and the angle of inclination of the axes of rotation of the mixing drums is about half the coning angle of the drum.
  3. A device as claimed in claim 1 or 2, characterised in that between the lower edges of the mixing drums (2) is a fixed projection (12) extending to the level of the mixing blades (11) of the mixing drums or below them, when the plunging arm (1) is in a vertical position.
  4. A device as claimed in any of the claims 1 to 3, characterised in that inside the mixing drums (2) are hydraulic motors (3), on the bearings of which the mixing drums (2) are mounted.
  5. A device as claimed in claim 4, characterised in that the transitional area between the fixed body of the hydraulic motor (3) and the rotating hub (5) is sealed with a replaceable gasket.
  6. A device as claimed in any of the claims 1 to 5, characterised in that each mixing drum (2) is rotated by a hydraulic motor (3), actuated by a pump, which is mechanically connected to rotate at essentially the same speed as a pump rotating another mixing drum or other mixing drums, and that the pumps are either in conjunction with the power machine or the mixing device.
  7. A device as claimed in any of the claims 1 to 6, characterised in that each mixing drum (2) is rotated by a hydraulic motor (3), and that the hydraulic motors are variable displacement motors, the speed of rotation of which is maintained essentially the same by adjusting the rotational volume as the incoming volume flows change.
  8. A device as claimed in any of the claims 1 to 7, characterised in that on the surface of the mixing drums (2) are protruding mixing blades or wings (11).
  9. A device as claimed in any of the claims 1 to 8, characterised in that on the plunging arm (1) is fixed a pipe (9) opening above each mixing drum (2) for feeding stabiliser onto the mixing drum (2).
EP09175732.8A 2008-12-11 2009-11-12 Device for mixing soil materials Active EP2199468B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20086186A FI124960B (en) 2008-12-11 2008-12-11 Device for mixing soil material

Publications (2)

Publication Number Publication Date
EP2199468A1 true EP2199468A1 (en) 2010-06-23
EP2199468B1 EP2199468B1 (en) 2014-04-02

Family

ID=40240584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09175732.8A Active EP2199468B1 (en) 2008-12-11 2009-11-12 Device for mixing soil materials

Country Status (6)

Country Link
EP (1) EP2199468B1 (en)
CN (1) CN101748762A (en)
DK (1) DK2199468T3 (en)
ES (1) ES2474944T3 (en)
FI (1) FI124960B (en)
RU (1) RU2521211C2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1020622A3 (en) * 2012-04-17 2014-02-04 Luc Maria Hugo Corneel Smet DEVICE AND METHOD FOR MAKING A WALL IN-SITU.
JP2016104944A (en) * 2014-12-01 2016-06-09 ライト工業株式会社 Ground agitation device
CN108118676A (en) * 2018-01-31 2018-06-05 上海汇壹土木工程技术有限公司 A kind of solidification of the foundation stirring-head
CN112144506A (en) * 2020-09-28 2020-12-29 宁波恩特重工科技有限公司 Silt in-situ stirrer
CN112162086A (en) * 2020-09-30 2021-01-01 南通理工学院 Experimental device for building engineering detects usefulness
CN112162087A (en) * 2020-09-30 2021-01-01 南通理工学院 Detection device configured in construction laboratory
CN112982373A (en) * 2021-03-18 2021-06-18 中国水利水电第九工程局有限公司 Milling and digging head of milling and digging machine
WO2021239225A1 (en) * 2020-05-28 2021-12-02 Construction Tools Gmbh A drum cutter arrangement
IT202100031592A1 (en) 2021-12-16 2023-06-16 Mecc Breganzese S P A In Breve Mb S P A ROTARY DISGREGERATOR FOR EXCAVATORS AND OPERATING MACHINES IN GENERAL

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103510505B (en) * 2013-10-18 2016-04-27 三川德青工程机械有限公司 Pollute earth in-situ solidifying stabilizing treatment system
CN104563093B (en) * 2013-10-18 2017-12-19 三川德青工程机械有限公司 Pollute soil in-situ solidifying stabilization processes device
CN103510506B (en) * 2013-10-18 2016-08-31 三川德青工程机械有限公司 Pollute earth in-situ solidifying stabilizing treatment system and method
FR3060046B1 (en) * 2016-12-14 2020-10-30 Soletanche Freyssinet DRILLING MACHINE EQUIPPED WITH FOUR DRILLING UNITS
CN114319212B (en) * 2021-12-31 2024-03-08 成都鸿翔环卫服务有限公司 Adjustable sanitation cleaning sweeping disc and sweeping vehicle

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Publication number Priority date Publication date Assignee Title
US4133397A (en) 1977-09-19 1979-01-09 Smith International, Inc. Drilling with multiple in-hole motors
EP0906990A1 (en) * 1997-10-02 1999-04-07 Ideachip Oy Method and apparatus for blending earth materials
JP2007262819A (en) 2006-03-29 2007-10-11 Taisei Corp Excavator
WO2009118386A1 (en) * 2008-03-26 2009-10-01 Allu Deutschland Gmbh Device for the cutting and mixing of soils
US7604301B1 (en) * 2006-12-07 2009-10-20 Lang William J Dual axis grinder blender

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SU64979A1 (en) * 1940-11-11 1944-11-30 В.П. Иванов Multistage roller bit
SU1700187A1 (en) * 1989-01-03 1991-12-23 Б„П0 Филатов и В„С0 Травкин Double-cone drilling bit
DE10308538C5 (en) * 2003-02-27 2014-11-06 Bauer Maschinen Gmbh Method of making a trench wall in the ground, trench wall cutter and trench wall cutter
ES2291788T3 (en) * 2004-09-03 2008-03-01 Bauer Maschinen Gmbh MILLING WHEEL FOR A WALL SCREEN.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133397A (en) 1977-09-19 1979-01-09 Smith International, Inc. Drilling with multiple in-hole motors
EP0906990A1 (en) * 1997-10-02 1999-04-07 Ideachip Oy Method and apparatus for blending earth materials
FI107629B (en) 1997-10-02 2001-09-14 Ideachip Oy Method of mixing soil
JP2007262819A (en) 2006-03-29 2007-10-11 Taisei Corp Excavator
US7604301B1 (en) * 2006-12-07 2009-10-20 Lang William J Dual axis grinder blender
WO2009118386A1 (en) * 2008-03-26 2009-10-01 Allu Deutschland Gmbh Device for the cutting and mixing of soils

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1020622A3 (en) * 2012-04-17 2014-02-04 Luc Maria Hugo Corneel Smet DEVICE AND METHOD FOR MAKING A WALL IN-SITU.
JP2016104944A (en) * 2014-12-01 2016-06-09 ライト工業株式会社 Ground agitation device
CN108118676A (en) * 2018-01-31 2018-06-05 上海汇壹土木工程技术有限公司 A kind of solidification of the foundation stirring-head
WO2021239225A1 (en) * 2020-05-28 2021-12-02 Construction Tools Gmbh A drum cutter arrangement
CN112144506A (en) * 2020-09-28 2020-12-29 宁波恩特重工科技有限公司 Silt in-situ stirrer
CN112162086A (en) * 2020-09-30 2021-01-01 南通理工学院 Experimental device for building engineering detects usefulness
CN112162087A (en) * 2020-09-30 2021-01-01 南通理工学院 Detection device configured in construction laboratory
CN112162087B (en) * 2020-09-30 2022-07-26 南通理工学院 Detection device configured in construction laboratory
CN112982373A (en) * 2021-03-18 2021-06-18 中国水利水电第九工程局有限公司 Milling and digging head of milling and digging machine
IT202100031592A1 (en) 2021-12-16 2023-06-16 Mecc Breganzese S P A In Breve Mb S P A ROTARY DISGREGERATOR FOR EXCAVATORS AND OPERATING MACHINES IN GENERAL
WO2023111977A1 (en) * 2021-12-16 2023-06-22 Meccanica Breganzese S.P.A. In Breve Mb S.P.A. Rotary di saggregator for excavators and operating machines in general

Also Published As

Publication number Publication date
RU2521211C2 (en) 2014-06-27
FI124960B (en) 2015-04-15
DK2199468T3 (en) 2014-06-30
FI20086186A0 (en) 2008-12-11
CN101748762A (en) 2010-06-23
EP2199468B1 (en) 2014-04-02
RU2009142907A (en) 2011-05-27
FI20086186A (en) 2010-06-12
ES2474944T3 (en) 2014-07-10

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