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

Definitions

• the invention relates to a method and a device for the treatment of earth.
• a Siebbrecher for earth material which has a trained as a bucket housing, the rear wall is designed as Brechersieb and in parallel and in operating position substantially horizontally positioned, rotating hollow shafts with each other at an axial distance to this rotatably arranged separation discs and crusher elements are arranged.
• the adjacent hollow shafts are arranged so that the separation discs are located opposite one another in a plane to the arrangement.
• In the space between two adjacent separation discs of a shaft teeth in each case on a pointing breaker element is rotatably supported. The distance between the elements and the distance between the separation discs arranged adjacently on a shaft thereby determine the sieving fineness of the crusher sieve.
• the hollow shafts are synchronously rotated by a chain drive on the outside of the housing.
• a disadvantage of this arrangement is that the grain size of the mechanically treated soil can only be regulated to a limited extent over the residence time in the crusher plant. Discrete control of the fraction or grain size is not possible.
• a device for the treatment of earth materials in which a blade separator with a pressure vessel, which serves to receive additives, is combined to form a stationary device.
• This arrangement which is particularly suitable for small construction sites, also allows only the treatment of soil with a constant grain size. An individual adjustment of the crushing or grinding process is not possible at this stationary establishment.
• the object of the invention is to propose a method and a device for the treatment of earth, the targeted introduction of different amounts of energy in the form of frictional energy and kinetic energy in the particles to influence technologically relevant properties (Ansteif originally, density, strength) of the mix and a defined Allow control of the addition of the dry components while reducing the environmental impact.
• methods and apparatus for the treatment of soils and building materials are used in the founding, backfilling or bulk of buildings, the filling of line and / or cable ducts, for fillings, roads and paths and for the bedding of Pipelines and supply lines or the complete backfilling of channels or trenches are used and in which the building material is initially adjusted by means of water and other components temporarily flowable.
• the object is achieved by a method having the features of the main claim and by devices having the features of the dependent claims 2 to 4 and 14.
• Preferably far inventions of the invention are the subject of the dependent claims.
• the process for the treatment of soil is transferred periodically or continuously before, during or after a mixing process kinetic energy to the particles of the soil, which leads to a charge and activation of the particles.
• the process of activating the particles of soil occurs by introducing kinetic energy in the form of friction energy during mechanical mixing of the soil ingredients in the dry state.
• An apparatus for the treatment of earth consists of at least two working shafts and / or working axes, which are arranged parallel to each other and axially spaced in a receptacle.
• working shafts and working axes are understood in the context of this application waves or axes on the circumference of one or more axially spaced tools or tool elements are either rotatably connected to the working shaft or mounted on the working axis and are driven separately.
• tools are understood as means of aiding a mechanical processing and processing of earth (eg disks, flails, cutters, chisels).
• the axial distance of the working shafts and working axes to each other is adjustable depending on the desired degree of energy input.
• the speed and the direction of rotation of the working shafts are individually controllable.
• the two working shafts perform an opposite movement, which leads to a "combing" of Bodeninhaltsstoff.
• a defined slip By regulating the rotational speed or the peripheral speed of the working shafts, a defined slip can also be generated, which leads to a particularly intensive introduction of energy into the mechanically processed soil particles in the form of friction energy.
• An alternative form for the defined introduction of frictional energy in the soil to be prepared consists in the axial setting of the disc spacing of the intermeshing discs of the working shafts (separators).
• the increase in the entry of frictional energy results in a better rubbing of the mixed material into fine-grained material.
• the mix also has a significant charge separation due to the applied friction work.
• two or more working shafts are arranged so that the disk-shaped tools located on the inside each dive into the space of the opposite working shaft (principle "disk in disk”).
• This arrangement also results in an increase in the energy input due to friction in the soil and a particularly homogeneous mixing of the soil ingredients. Likewise, clumping is avoided in this arrangement and it can be made a targeted influencing the maximum grain size of the material to be separated.
• the working path is affected, a soil particles has to cover when passing the discs. This path is also a measure of the size of the transmitted to the particles friction energy.
• the device for the treatment of earth consists of a receptacle in which at least two working shafts are arranged parallel to each other and axially spaced rotatable, the axial distance of the working shafts to each other and / or adjacent walls of the receptacle adjustable and the speed or the peripheral speed and / or the direction of rotation of the working shafts is set or regulated individually or in groups.
• a channel is arranged, which serves to accommodate the dry components and their dust-tight transmission to near the working area of at least one working shaft.
• the channel assumes the function of a depot and a supply and metering device.
• the channel is formed by the double-walled rear wall of the receptacle of a blade separator.
• a metering device is arranged at the mouth of the channel, which allows a continuous or cyclic addition of the dry components.
• the metering device is designed as Zellradscheuse.
• the receptacle has facilities for determining the water or moisture content of the earth.
• the device for determining the water or moisture content is connected to a weighing device and / or a flow rate measuring device.
• the weighing device and / or the flow rate measuring device and / or the device for determining the water or moisture content of the earths are in operative connection with one another.
• a quasi-stationary device for the treatment of earth in construction site operation consists of a large-volume receptacle in which three working shafts are arranged parallel to each other.
• the wall of the receptacle is adapted to the contour of the three rotating working shafts.
• Two working shafts are axially displaceable or pivotable relative to each other and to the third working shaft.
• Speed and direction of rotation of each working shaft is individually controllable.
• the lower working shaft is arranged axially displaceable, so that the lateral distances between the mutually corresponding tool elements of the opposing working shafts are adjustable.
• the filling of the receptacle is carried by a high tank, which is arranged above the receptacle.
• the raw materials to be processed may be temporarily stored.
• the removal from the elevated tank a precise dosage of the extracted volumes is possible.
• the removal or withdrawal of the ground and energetically charged soil particles is carried out by gravity or generating a negative pressure at the bottom of the sieve-like shaped bottom of the receptacle.
• a blade separator as a functional part of a wheel loader on two rotatably mounted working shafts, which are positively surrounded by a blade.
• the control of the speed and the direction of rotation of both working shafts is done separately with known hydraulic drive elements.
• a working shaft is mounted axially displaceable and allows a change in the lateral distance of acting as machining tools discs that are mounted on both working shafts.
• the other working shaft is pivotally mounted and thereby allows the adjustment of the axial distance of the lateral surfaces of the parallel working shafts and at the same time a change in the distance of this shaft to the adjacent wall of the receptacle.
• an adjustment of the grain or fraction size and a targeted dosage of the friction energy is possible, which are transmitted to the soil particles in the mechanical processing and when passing the movable and stationary elements of the device.
• a Schaufdseparator as a functional part of a wheel loader on three rotatably mounted working shafts, which are positively surrounded by a blade, which also forms the receptacle.
• the control of the speed and the direction of rotation the working shafts are separated with known hydraulic drive elements.
• the middle working shaft is mounted axially displaceable and allows a change in the lateral distance of acting as processing tools discs that are mounted on the working shafts.
• a working shaft is pivotally mounted and thereby enables the adjustment of the axial distance of the lateral surfaces of the parallel working shafts and at the same time a change in the distance of this shaft to the adjacent wall of the receptacle.
• an adjustment of the grain or fraction size and a targeted dosage of the friction energy is possible, which are transmitted to the soil particles in the mechanical processing and when passing the movable and stationary elements of the device.
• the channel which serves as a reservoir for receiving and supplying the dry components, is designed as a double-walled rear wall of the receptacle.
• the overhead filling opening of the channel has an adapter which, in conjunction with a filling nozzle, enables a dust-proof transfer of the dry components.
• a rotary valve is arranged at the mouth (outlet opening) of the channel as a metering.
• the rotary valve and a weighing device allow the determination of the recorded or added quantities or volumes of building material components.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

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Citations (3)

Family Cites Families (10)

• 2004
  • 2004-11-25 DE DE200410057051 patent/DE102004057051B4/de not_active Expired - Fee Related
• 2005
  • 2005-08-05 EP EP05017141A patent/EP1623754A1/fr not_active Withdrawn

Patent Citations (3)

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