WO1999011378A1 - Installation de recyclage de beton pour le retraitement de beton residuel constitue de restes de beton frais non utilises et de residus obtenus lors du nettoyage de dispositifs de production et de transport de beton - Google Patents

Installation de recyclage de beton pour le retraitement de beton residuel constitue de restes de beton frais non utilises et de residus obtenus lors du nettoyage de dispositifs de production et de transport de beton Download PDF

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Publication number
WO1999011378A1
WO1999011378A1 PCT/EP1998/005195 EP9805195W WO9911378A1 WO 1999011378 A1 WO1999011378 A1 WO 1999011378A1 EP 9805195 W EP9805195 W EP 9805195W WO 9911378 A1 WO9911378 A1 WO 9911378A1
Authority
WO
WIPO (PCT)
Prior art keywords
concrete
recycling
frame
drive
recycling plant
Prior art date
Application number
PCT/EP1998/005195
Other languages
German (de)
English (en)
Inventor
Jürgen Bozenhardt
Original Assignee
Bozenhardt Juergen
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 Bozenhardt Juergen filed Critical Bozenhardt Juergen
Priority to EP98945250A priority Critical patent/EP1044071A1/fr
Priority to AU92630/98A priority patent/AU9263098A/en
Publication of WO1999011378A1 publication Critical patent/WO1999011378A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • B03B9/063—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial the refuse being concrete slurry
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/16—Waste materials; Refuse from building or ceramic industry
    • C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/58—Construction or demolition [C&D] waste
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention relates to a concrete recycling plant for the reprocessing of residual concrete from unused fresh concrete residues and from residues which arise in the cleaning of concrete manufacturing and transport facilities such as truck mixers, mixing plants and concrete pumps on construction sites, in concrete plants and reprocessing plants.
  • Reprocessing systems are known in which the solid components are washed out of the residual concrete with the addition of rinsing water and their classification in, for example, closed washing drums, trough prewashers, vibrating sieve coarse separators or inclined dewatering screws with and without a classifying sieve with a downstream clarifier for the absorption of the cement-containing water.
  • the cement-containing water must be moved in the downstream clarifying parts by agitators so that it does not set.
  • the sludge obtained in these processes must be removed from the pits and disposed of as special waste. This is costly and material-intensive and environmentally unfriendly.
  • Washing-out devices for concrete recycling plants with a mixing and conveying device in the form of a screw arranged in a container and at least two scooping devices are known from DE 42 1 5 1 74 C 1.
  • Concrete residues are fed from concrete mixer trucks with rinsing water into the container of the washing device, where they are conveyed to the end of the container by means of a rotor in the form of a screw conveyor and sent for recycling with the bucket elevators.
  • a ring is attached to one end of the screw conveyor and is mounted on several rollers which are arranged on the trough walls outside the water.
  • the screw conveyor rotates with the ring and does not need a drive shaft, which eliminates sealing problems for shaft bearings in cement-containing water.
  • the screw conveyor is driven by a motor-driven toothed pinion, which is in engagement with a toothed bridge arranged on the circumference of the ring.
  • This construction is very energy-intensive and requires a correspondingly strong drive motor which is associated with high power consumption.
  • Washing-out devices for concrete recycling plants with a mixing and conveying device in the form of a screw arranged in a container and at least two scooping devices are also known from DE 1 95 03 069 A1, in which the mixing and conveying device and the scooping devices are from a common chain drive are driven.
  • the mixing and conveying device has a gear wheel on one end face for receiving a drive chain.
  • the gear wheel is mounted on guide rollers arranged on the container wall.
  • the mixing and conveying device is connected via a shaft to a scoop wheel, on the end of which a second gear wheel for receiving a second drive chain is arranged and which ends with a second end ring, which is also mounted on a guide roller arranged on the end wall of the container.
  • Guide rollers and drive are arranged essentially outside the residual concrete and are therefore less prone to failure.
  • the chains absorb significant amounts of solid and liquid components, which displace the chain links and destroy the drive sprockets, as a result of which Drive is very prone to failure.
  • the central shaft bearing between the screw conveyor and the scoop also increases the susceptibility of this system to faults.
  • Such a mixing device is known from DE 44 03 262 A1. It consists of a trough-shaped container in which a mixing device consisting of two oppositely operating spirals is arranged, which are adapted to the trough shape of the container at a short distance from the underside of the container.
  • the mixing spirals are cantilevered and supported on races on idlers, which are arranged on the end walls of the container, and driven by a chain drive.
  • the mixing spirals working in the opposite direction to the center of the container prevent deposits on the container edges, but in addition to the washing-out devices, the devices require an additional drive unit and thus additional energy and cost. Outside, the cement-containing water must be filled and emptied into the separate mixing device, which requires additional transportation.
  • Container walls are arranged. This leads to strong frictional forces, which require powerful drive units. For the different process sequences, several drives are required, which must be operated, operated and monitored independently of one another. This is energy, material and expensive. In addition, improper operation of the systems cannot be ruled out because they are easily accessible are. Overloading of systems and the resulting failure of the units and their repair are the rule.
  • the object is achieved by a concrete recycling plant for the reprocessing of residual concrete with the characterizing features of claim 1.
  • the complete arrangement of the system's modularly arranged and flexibly combinable units allows the integration of all process steps in one system.
  • the arrangement of the modular units in a flexible frame unit according to claims 2 to 6 also allows a spatially variable arrangement of the individual modules according to the space requirements of the user. If required, the user can also arrange the space part of the frame unit in which the conveyor units are arranged, together with the feed basin and the flushing gallows, at right angles to the other space parts of the frame unit.
  • the individual room parts of the frame unit according to claim 2 can be closed if necessary by wall surfaces, whereby access to the system by incompetent operating personnel can be excluded.
  • the structural design of the feed basin with a grating according to claim 7 does not allow the ingress of foreign bodies which destroy the aggregates and, because of its volume, has a storage capacity which allows the truck mixer to be dispatched at short notice.
  • Electronic vehicle detection automatically triggers the supply of rinse water to the system parts and, if necessary, the drive to be set to full power.
  • the uncontrolled Filling excessive amounts of residual concrete into the feed basin can only result in the overflow of the feed basin, since the electronic fill level monitoring in the mixing and washing-out system only allows the supply of residual concrete in the quantities that the system can process. An overload of the washing and mixing system as well as the drive and the conveyor units is therefore excluded.
  • the driver can manually feed the flushing water into the truck mixer drum using a hand switch on the flushing boom.
  • the basin separately enclosed by the frame unit according to claims 22 to 25 divides the system into two parts by means of a separating part, in which the cement-containing water is moved until it is returned to the manufacturing process and pumped out if necessary, and into a pre-wash and post-wash chamber in which the solid components of the residual concrete over the Screw shovels are conveyed to the classifying sieve, separated into coarse and fine-grain fractions via a trough in the basin and transported to a divided drainage trough with two scooping devices for post-washing and reprocessing.
  • the control of the modular units of the system by a drive according to claim 26 is particularly advantageous.
  • the arrangement of all functional elements of the drive on the frame unit according to claims 27 to 30 outside of the media to be processed not only ensures considerable energy and cost savings, it also ensures that the drive parts cannot be adversely affected and destroyed by the aggressive cement water.
  • the storage of the washing and mixing device on both sides of only one friction wheel ensures easy mobility of the construction, which also makes the use of the previously required powerful motors superfluous.
  • the automatically controlled sequence of the process steps in the integrated recycling system according to the invention by means of conventional electronic control elements permits a process sequence that is largely independent of subjective factors and the saving of operating personnel for the previously required separate process sequences during reprocessing. It enables the saving of work equipment, transport routes and time spent on transport between the previously separate and manually operated processing systems.
  • the expensive ancillary construction costs for the construction of the septic tanks as well as the energy and personnel expenses for the operation and maintenance of the pits are eliminated. Additional screening and separation systems are no longer required.
  • FIG. 1 is a front view of a concrete recycling plant according to the invention without frame walls and basin,
  • FIG. 2 shows the top view of a concrete recycling plant according to the invention without frame walls and basins
  • FIG. 3 shows the side views of a concrete recycling plant according to the invention in section A-A and in section B-B from FIG. 1,
  • Fig. 4 is the front view of the frame unit of a concrete recycling plant according to the invention without
  • Fig. 5 is a plan view of the frame unit of an inventive
  • FIG. 6 shows the side views of the frame unit of a concrete recycling plant according to the invention in section A-A and B-B from FIG. 4,
  • FIG. 7 is a top view of the completely assembled washing device shown as a detail, 8 shows the side view of the washing device in section BB from FIG. 1,
  • FIG. 9 shows the side view of a drive ring in section C-C from FIG.
  • 1 0 is the front view of a drive ring
  • FIG. 1 1 is a side view of a receiving ring in section C-C of Fig. 1 2,
  • 1 2 is the front view of a receiving ring
  • 1 3 is a front view of a support
  • 1 4 is a side view of a support
  • Fig. 1 5 the top view of a support flange in section A-A
  • 1 6 is the front view of a support rod
  • 1 7 is a plan view of a support rod
  • 1 8 is the front view of a worm shovel
  • 1 9 is a plan view of a worm shovel
  • FIG. 20 shows the front view of the mixing device in section C-C from FIG. 2,
  • Fig.1, 23 the front view of the basin in section EE from FIG. 2,
  • FIG. 25 shows the side view of the drive in section A-A from FIG. 1,
  • Fig. 26 is the front view of the drive in section C-C
  • FIG and 2 are the front view and the top view of a concrete recycling plant in a linear arrangement form of the modular units 1 1 and 1 2 according to the invention, the drive 9 and a basin 1 6 and a divided drainage channel 1 7 in and on the modular frame unit 1 3 recognizable.
  • the basin 1 6 and on the room parts 1 3 'and 1 3 "of the frame unit 1 3 wall surfaces which can be arranged as required were not shown in more detail for reasons of visual clarity for the viewer.
  • the frame 22 composed of conventional steel profiles is shown in FIG and 5 mounted on a base frame 1 8. In the room parts 1 3 ', 1 3 "and 1 3'" of the frame unit 1 3, which can be easily separated or linked as required by the user, the modular units 1 1 and 1 2.
  • the feed basin 2 which is made of sheet steel, for example, is part of the modular unit 11 with its rear wall 2 '"on preferably two brackets 2""on the front side by the horizontal frame planes F and I and by vertical frame planes A and B limited space part 1 3 'of the frame unit 1 3 arranged.
  • the feed basin 2 is closed on both sides with two side walls 2' which essentially form an acute-angled triangle and an end wall 2 'which closes with the diagonals of the side walls 2'.
  • the end wall 2 "forms the Bottom of the feed basin 2 and also serves as a kind of slide.
  • a suction nozzle for a concrete pump 5 " is arranged in the rear wall 2" and a grating 2 """is arranged above the suction nozzle parallel to the filling level of the feed basin 2, through which the penetration of objects which destroy the conveying units can be avoided .
  • the pipeline is led out of the closed side wall of the room part 1 3 ', not shown in the drawings.
  • a flushing water pipe 1 ' is preferably arranged vertically from the top wall of the room part 1 3', also not shown, which is angled away from the room part 1 3 'at an arbitrarily definable height and forms a flushing gallows 1. If necessary, two flushing gallows 1 can also be provided at this point.
  • Rinse water is removed via the rinse water line 1 'for cleaning, for example, the drum of a truck mixer.
  • a manually operated switch is arranged in a visible place for the driver.
  • the concrete pump 5 is connected in such a way that the concrete pump 5 "takes over the diluted residual concrete from the feed basin 2 and transports it via a pressure pipe 1 5 into the room part 1 3" of the frame unit 1 3.
  • the concrete pump 5 ' is connected in such a way that it ensures the return of the cement-containing water flowing out of the residual concrete into the manufacturing process, the concrete pump 5 "conveys the diluted residual concrete from the feed basin 2 for washing out and classifying into its coarse and fine components in the room part 1 3 ", the rinse water pump 5"'supplies the rinse boom 1 with rinse water and the rinse water pump 5 "" transports rinse water into the feed basin 2.
  • the great advantage of the conveying units 5 arranged in the room part 1 3' consists in the closability of the room part 1 3 'by attaching wall elements. In this way, access to the conveyor units 5 is only guaranteed by competent personnel. The arbitrary changing of the performance parameters set on the conveying units 5 by incompetent people is not possible, as a result of which the overloading of pump motors, drive or other system parts can be excluded.
  • the space part 1 3 "delimited by the horizontal frame levels F and I and the vertical frame levels B and D adjoins the space part 1 3 '.
  • the supports 1 9, Trusses 20, and pipe supports 21 of the frame 22 are arranged so that the room part 1 3 "is detachably connected to the room part 1 3 '.
  • the frame elements are connected to one another in such a way that the room part 1 3 "can be separated again in a vertical frame plane C.
  • a pipe support 21 with sub-beams 1 9 'to the room part 1 3" is arranged on which a from the room part 1 3 'guided and coupled to the concrete pump 5 "pressure pipe 1 5 is held or carried.
  • the room part 1 3" is designed in length and width so that it has the modular unit 1 2 in a complete version and can hold a separate basin 1 6 that is approximately the same length.
  • the user can also obtain a system variant shortened by the length of the mixing device 4 if, for example, he wants to use an existing pit for the cement water.
  • the cement water is then discharged directly from the outflow device into such a pit.
  • the pool 1 6 according to FIGS. 23 and 24, not shown in more detail in FIGS. 1 and 2, consists of a semicircular floor 1 6 'running over its entire length, on the two opposite upper edges of which two side walls 1 running perpendicular and parallel to each other close 6 '".
  • Two end walls 1 6" provided with rectangular cutouts close the basin 1 6 in the vertical frame levels B and D.
  • a partition 40 in parallel to the end walls 1 6 "in the frame plane B.
  • the frame plane D a partition 41 and perpendicular to the end wall 1 6 "in the frame plane D a groove 42 is arranged.
  • the partition 40 divides the pool 1 6 to at a height that corresponds to approximately two thirds of the total basin height into a clarifying part 10 and a pre-wash and post-wash area of the washing device 3.
  • the partition 41 divides the pre-wash and post-wash area in the pool 1 6.
  • the trough 42 arranged projects into the interior of the basin 1 6.
  • the basin 1 6 is fixedly mounted with the base 1 6 'on the base frame 1 8 of the frame 22.
  • a conventional emergency drain valve is provided at a suitable location on the base 1 6'.
  • the particular advantage of the design of the pool 1 6 according to the invention consists in the combination of a clarifying part 1 0 and a pre-wash and post-wash area in a self-contained work space, which combines the work steps previously carried out in separate plants, washing out, classifying and mixing the cement-containing water Pits, guaranteed in a system
  • the modular unit 1 2 is in the selected version 7 and 8, a mixing device 4 shown in FIGS. 20, 21 and 22, a classifying screen 8, not shown, and preferably two scooping devices 6 and 7.
  • the chosen construction according to the invention of the two plant units washing device 3 and mixing device 4 ensures, in addition to the combination of previously separate process steps such as washing, classifying and mixing, an assembly of the parts outside the frame unit 1 3.
  • Two drive rings 23, for example made of sheet steel, and preferably three are parallel to one another the drive rings 23 arranged receiving rings 24 according to FIGS. 9 to 1 2 by, for example, eight, over the inner circumference of the radially extending annular surfaces 23 'of the drive rings 23 and the annular surfaces 24' of the receiving rings 24 distributed guide tubes 25 made of unrefined steel tube connected to each other.
  • Ladle cups 29, which form the two ladle devices 6 and 7 of the washing device 3 are mounted between a drive ring 23 and a receiving ring 24 and between the two further receiving rings 24 over the outer circumference of the annular surfaces 23 'and 24'.
  • On the guide tubes 25 parallel to the annular surface 24 'of the third receiving ring 24 and the annular surface 23' of the second drive ring 23 are made of sheet steel and are made four times to their surface plane W. angled, circular segments formed worm blades 28 according to FIGS. 1 8 and 1 9 pushed on.
  • a worm shovel 28 sits on three guide tubes 25, the following on one of the first three and on two further guide tubes 25 etc., the distances between the worm blades 28 being ensured by spacer tubes 27 which are also to be fitted onto the guide tubes 25.
  • each guide tube between the worm blades 28 25 at least two supports 26 of different lengths, for example consisting of a square profile, according to FIGS.
  • 1 3 to 1 5 are arranged in the radial direction, on the free end face of which there is a flange 26 ′′ at an acute angle c ⁇ to their longitudinal axis Y.
  • the shorter supports 26 are arranged parallel to the annular surface 24 'of the third receiving ring 24 and the longer supports 26 are arranged parallel to the annular surface 23' of the second drive ring 23.
  • Support rods 30 according to FIGS. 1 6 and 17 are attached to the flanges 26 "of the supports 26 assembled.
  • the support rods 30, for example made of non-tempered steel tube, are angled over a definable range at an obtuse angle P to their longitudinal axis Z and have holes 30 'distributed over the entire length, with which they can be connected to the flanges 26 ′′ of the supports 26 and by means of conventional connecting means their angled area on the circumferential surface 31 'of an annular flange 31 are non-positively connected in such a way that they form a truncated cone-shaped cavity form that can be equipped with differently sized passages, so that classifications according to required grain sizes can be easily realized.
  • the washing device 3 has the great advantage that all parts of the system are not stored centrally ind, which avoids the considerable wear and tear of the anie parts caused by the previous central bearings and eliminates the frequent repair work and maintenance work be minimized.
  • the frame 32 of the mixing device 4 formed from supports 33, supports 34, tensioning tubes 35, bridges 36 and plates 37 and sheets 38 according to FIGS. 20 to 22 and made for example from steel profile parts, forms an isosceles quadrilateral in its outer contours, that on its one end face is brought together to form a projecting cylindrical frame part 32 'and is fastened to an annular flange 39 with plates 37 arranged at the end of the cylindrical frame part 32'.
  • the mixing device 4 and the washing device 3 are mounted, they are connected to one another via the two ring flanges 31 and 39.
  • the mixing device 4 according to the invention is characterized by a light construction. Due to the mechanical coupling with the washing device 3 according to the invention, both units can be operated simultaneously by means of a single drive 9, which results in considerable cost savings when purchasing the drive units and, above all, the saving on maintenance personnel.
  • the drive 9 according to the invention is shown in more detail in FIGS. 25 to 27, the arrangement of its components being particularly emphasized. All components of the drive 9 according to the invention formed from commercially available individual parts or products are arranged on the cross members 20 of the vertical frame levels C and D in the horizontal frame level F of the frame unit 1 3 outside the residual concrete to be processed in the pool 1 6.
  • the drive 9 manages with only two friction wheels 45, on which the washing device 3 according to FIG. 26 with the inner sides of the ring belts 23 ′′ of the drive rings 23 is mounted on both sides.
  • the Drive 9 Compared to the known arrangement of the friction wheels 45 on the inside of the two end walls 1 6 "of the pool 1 6, the Drive 9 according to the invention has a substantially higher stability, since the load of the washing device 3 is held vertically on the angular profile of the frame 22, as a result of which the end walls 1 6 "of the basin 1 6 are relieved and maintenance work on the system can be carried out more easily.
  • the frame unit 1 can be made over a room part 1 3'" 3 a subsidy for the coarse and fine grain portions to be transported from the system can be arranged.
  • a divided drainage channel 1 7 is provided for this, which receives the coarse and fine constituents of the residual concrete conveyed by the two scooping devices 6 and 7 from the pool floor 1 6 'of the pre-washing and post-washing area of the pool 1 6, from where they are used for further use can be.
  • the divided drainage channel 1 7 is arranged so that it intersects the vertical planes of the drive ring 23 in the vertical frame plane D and the two receiving rings 24 and protrudes so far into the space part 1 3 "that it ends with the vertical plane of the third receiving ring 24.
  • a conventional conveyor such as a conveyor belt can also be used.
  • the vehicle When returning residual concrete, for example from a truck mixer, the vehicle drives up to the feed basin 2 and empties the residual concrete located in the vehicle drum into the feed basin 2.
  • a paint detection device located at a suitable point triggers the automatic dilution of the residual concrete with rinse water, its transport to the washing device and if necessary, switch on the drive 9 to full power.
  • Rinse water from the clarifying part 1 0 of the basin 1 6 is portioned into the feed basin 2 by means of the rinse water pump 5 ′′ and the residual concrete thus diluted is portioned by means of the concrete pump 5 ′′ from the feed basin 2 via the pressure line 1 5 into the prewash and post-wash area of the basin 1 6 transported to the washing device 3.
  • the coarse-grained fractions fall out of the sieve cone 8 onto the trough 42 in the basin 1 6 into the post-washing area behind the partition 41, from where they are connected to the Scoop device 6 are transported to one half of the divided conveyor trough 1 7.
  • the fine-grain constituents of the residual concrete fall to the floor in the prewash area of the pool 1 6, from where they are conveyed to the second part of the divided drainage channel 1 7 by means of the scoop device 7.
  • the cement-containing water remains up to the height of the partition 40 in the prewash area of the basin 1 6.
  • the cement-containing water runs over the partition 40 into the clarifying part 10 of the basin 1 6 where it is constantly in motion by the rotating movement of the mixing device 4 is held. From there, the cement-containing water can be returned to the manufacturing process by means of the concrete pump 5 ', or can be conveyed into the feed basin 2 by means of the flushing water pump 5 "" via the flushing boom 1 for cleaning the vehicle drum or for diluting the residual concrete via the flushing water pump 5'".
  • the portioned delivery of diluted residual concrete from the feed basin 2 is controlled by an electronically controlled level indicator in the basin 1 6. In this way, the system cannot be overfilled and the drive 9 cannot be overloaded.
  • the truck mixer If the truck mixer is emptied, it gives off when moving away from the feed basin 2 the contact to the vehicle detection is released, which automatically starts a run-on time for the flushing water pump 5 '", which is reset until the power measurement of the concrete pump 5" switches off the flushing water pump 5'"and the concrete pump 5" comes to a standstill with a delay switching off the concrete pump 5 "switches the drive the divided drainage channel 1 7 with a time delay and the drive 9 switches to intermittent operation, whereby the cement-containing water is kept in a uniform suspension.
  • the electronic level monitoring in the pool 1 6 is designed so that it can be detected and regulated in the concrete plant.
  • the defined minimum fill level in the pool 1 6 is undershot, this is regulated by a conventional, and therefore not described, automatic fresh water make-up.
  • the concrete recycling plant according to the invention is secured by its electronic control and monitoring in such a way that the plant works largely independently of subjective influencing factors and untrained personnel cannot cause material and financial damage due to incorrect operation. Thanks to the modular structure, the system is always on Customizable conditions and requests adaptable. The automatic switchover of the drive 9 between intermittent operation or full power also ensures high energy savings.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

L'invention concerne une installation de recyclage de béton pour le retraitement de béton résiduel constitué de restes de béton frais non utilisés ainsi que de résidus obtenus lors du nettoyage de dispositifs de production et de transport de béton, tels que des bétonnières sur camion, des installations de mélange et des pompes à béton se trouvant sur des chantiers, dans des usines de production de béton et dans des installations de retraitement. L'objectif de l'invention est de créer une installation de recyclage de béton qui garantisse le retraitement de tous les constituants du béton résiduel et leur recyclage dans le processus de production au moyen d'une installation commandée et surveillée automatiquement, sans séparation des différentes étapes du procédé dans des installations séparées et avec un minimum d'énergie, de matériaux et de coûts, cette installation de recyclage de béton devant être également, dans une large mesure, indépendante de facteurs d'influence subjectifs inadéquats. L'installation selon l'invention est un système de construction par blocs monté à l'intérieur d'un ensemble châssis flexible, dans lequel toutes les parties de l'installation peuvent être disposées de façon variable en tant qu'unités modulaires, tous les ensembles rotatifs sont portés, guidés et entraînés par un seul dispositif d'entraînement qui fonctionne complètement à l'extérieur du béton résiduel à recycler, et qui est commandé et surveillé complètement automatiquement par un agencement intégré d'éléments de commande classiques électroniques.
PCT/EP1998/005195 1997-09-03 1998-08-17 Installation de recyclage de beton pour le retraitement de beton residuel constitue de restes de beton frais non utilises et de residus obtenus lors du nettoyage de dispositifs de production et de transport de beton WO1999011378A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98945250A EP1044071A1 (fr) 1997-09-03 1998-08-17 Installation de recyclage de beton pour le retraitement de beton residuel constitue de restes de beton frais non utilises et de residus obtenus lors du nettoyage de dispositifs de production et de transport de beton
AU92630/98A AU9263098A (en) 1997-09-03 1998-08-17 Concrete recycling facility for recycling waste concrete from unset concrete residues and residues obtained during the cleaning of concrete producing or transporting devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19738471.4 1997-09-03
DE1997138471 DE19738471A1 (de) 1997-09-03 1997-09-03 Betonrecycling-Anlage zur Wiederaufbereitung von Restbeton

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PCT/EP1998/005195 WO1999011378A1 (fr) 1997-09-03 1998-08-17 Installation de recyclage de beton pour le retraitement de beton residuel constitue de restes de beton frais non utilises et de residus obtenus lors du nettoyage de dispositifs de production et de transport de beton

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EP (1) EP1044071A1 (fr)
AU (1) AU9263098A (fr)
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WO (1) WO1999011378A1 (fr)

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CN102430467A (zh) * 2011-10-25 2012-05-02 葛洲坝集团第五工程有限公司 一种湿法生产砂石系统的废弃石粉再利用方法
CN112318716A (zh) * 2020-10-21 2021-02-05 深圳市龙岗大工业区混凝土有限公司 一种再生混凝土制备工艺及系统

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AU2002953236A0 (en) 2002-12-10 2003-01-02 Mario Panuccio Process for operating a water treatment plant
NL2004637C2 (nl) * 2010-04-29 2011-11-02 Ballast Nedam Mileutechniek Inrichting en werkwijze voor het reinigen van een betonmixer.
DE202012007655U1 (de) 2012-08-10 2013-11-12 Lintec Gmbh & Co. Kg Restbeton-Aufbereitungsvorrichtung zur Restbeton-Aufbereitung
DE102018123115A1 (de) 2018-09-20 2020-03-26 Thyssenkrupp Ag Verfahren und Anlage zum Aufbereiten von Material, das Zementstein enthält
CN115259718B (zh) * 2022-08-03 2023-05-05 禹城市金德建材有限公司 一种绿色再生混凝土的制备工艺

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DE2617837A1 (de) * 1976-04-23 1977-11-03 Geb Hilsheimer Ingeborg Held Vorrichtung zum entschlammen von wasser
EP0062339A2 (fr) * 1981-04-04 1982-10-13 Friedrich Bozenhardt Installation pour récupérer des résidus de béton
EP0167646A1 (fr) * 1984-07-10 1986-01-15 Stetter GmbH Installation de retraitement de déchets de béton
DE4215174C1 (fr) * 1992-05-08 1993-07-15 Friedrich 7441 Neckartailfingen De Bozenhardt
DE4403262A1 (de) * 1994-02-03 1995-08-10 Friedrich Bozenhardt Verfahren und Vorrichtung zum Mischen insbesondere von Schmutzwasser von Betonwiederaufbereitungsanlagen
DE19503069A1 (de) * 1995-02-01 1996-08-08 Friedrich Bozenhardt Auswaschvorrichtung für Restbeton-Wiederaufbereitungsanlagen

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DE2617837A1 (de) * 1976-04-23 1977-11-03 Geb Hilsheimer Ingeborg Held Vorrichtung zum entschlammen von wasser
EP0062339A2 (fr) * 1981-04-04 1982-10-13 Friedrich Bozenhardt Installation pour récupérer des résidus de béton
EP0167646A1 (fr) * 1984-07-10 1986-01-15 Stetter GmbH Installation de retraitement de déchets de béton
DE4215174C1 (fr) * 1992-05-08 1993-07-15 Friedrich 7441 Neckartailfingen De Bozenhardt
DE4403262A1 (de) * 1994-02-03 1995-08-10 Friedrich Bozenhardt Verfahren und Vorrichtung zum Mischen insbesondere von Schmutzwasser von Betonwiederaufbereitungsanlagen
DE19503069A1 (de) * 1995-02-01 1996-08-08 Friedrich Bozenhardt Auswaschvorrichtung für Restbeton-Wiederaufbereitungsanlagen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102430467A (zh) * 2011-10-25 2012-05-02 葛洲坝集团第五工程有限公司 一种湿法生产砂石系统的废弃石粉再利用方法
CN112318716A (zh) * 2020-10-21 2021-02-05 深圳市龙岗大工业区混凝土有限公司 一种再生混凝土制备工艺及系统

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AU9263098A (en) 1999-03-22
EP1044071A1 (fr) 2000-10-18

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