EP0031787A1 - Method and device for recycling metal-mesh reinforced cellular-concrete moulded elements - Google Patents
Method and device for recycling metal-mesh reinforced cellular-concrete moulded elements Download PDFInfo
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- EP0031787A1 EP0031787A1 EP80630054A EP80630054A EP0031787A1 EP 0031787 A1 EP0031787 A1 EP 0031787A1 EP 80630054 A EP80630054 A EP 80630054A EP 80630054 A EP80630054 A EP 80630054A EP 0031787 A1 EP0031787 A1 EP 0031787A1
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- concrete
- roller
- steel
- belt
- moving
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- 238000000034 method Methods 0.000 title claims description 14
- 239000011381 foam concrete Substances 0.000 title abstract description 3
- 238000004064 recycling Methods 0.000 title description 2
- 239000004567 concrete Substances 0.000 claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000012634 fragment Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000006148 magnetic separator Substances 0.000 claims description 3
- 238000012958 reprocessing Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 2
- 239000011440 grout Substances 0.000 claims 1
- 230000002153 concerted effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/02—Codes relating to disintegrating devices adapted for specific materials for reinforced concrete
Definitions
- the present invention relates to a method and a device for the reprocessing of wire mat reinforced gas concrete shaped pieces, in particular for separating the steel portion from the concrete portion and for the targeted comminution of the latter.
- Components made of wire mesh reinforced gas concrete are characterized by high strength and in particular by a high degree of thermal insulation. At the same time, however, these components are very susceptible to impacts and other contacts with hard objects, so that a certain percentage of waste is regularly incurred in the production of molded parts from gas concrete.
- the rejects occur in plate fragments with a length of 3-6 m, a width of around 0.6 m and a thickness of 10-30 cm.
- Landfills are generally to be rejected for ecological and aesthetic reasons.
- the supposedly problem-free discarding of these rejects means that two valuable products, namely steel scrap, as well as highly porous, heat-insulating gas concrete are dispensed with, which should not be in the sense of an energy-conscious household.
- the landfills in question are all in the vicinity of the systems for producing the fittings.
- the amount of the discarded scrap, as well as the proximity of the scrap to the plants, are suitable for making pasture processing economically attractive, provided that a preferably automatic device is available that is able to separate the steel anticile from the concrete part, as well to carry out the targeted comminution of the latter into grain sizes for further processing.
- the aim of the invention is therefore to propose a method for the fully automatic separation of the steel portion of gas concrete fittings from the concrete portion and for the targeted crushing of the latter, as well as the device required for this.
- the method according to the invention which is characterized in that in a first operation the wire-reinforced fittings are broken open at several points at the same time and the bond between steel bars and concrete is loosened, and in an immediately following operation the molded pieces still adhering are subjected to a shaking effect and shaking off the concrete fragments and exposing the steel rods and finally separating the steel rods and preparing the concrete fragments by sieving and breaking.
- cracking and loosening are carried out by placing the shaped pieces in the direction of the longitudinal rods of the wire meshes embedded therein on a moving drag belt and pulling them through the gap between the latter and a crushing roller arranged above it.
- a static pressure or a shock load would not be suitable for solving the specific problem.
- this is cellular concrete that is crushed when using static pressure, such as in a press, but does not crumble.
- a hammer blow for example, has a similar effect, which leaves an impression in a gas concrete molding, but does not sufficiently produce the desired size reduction and, in particular, loosening effect.
- the pre-broken fittings are moved over a moving angular vibrating roller and the boton fragments and the cross bars of the wire reinforcement, the welding rods of which were largely destroyed during breaking, are collected below this.
- the steel mats consist of longitudinal and cross bars, the connection being made by spot welding. In the sale of the dynamic crushing loosening process, the remaining point weak spots are also largely broken open.
- the longitudinal bars are pushed into a container, while the cross bars are separated from the concrete part using a magnetic separator.
- the next step logically understands that one feeds the concrete fragments to a vibrating sieve, separates the desired minimum grain size there and feeds the oversize to a crusher.
- the absolute grain size in question therefore depends on the nature of the original gas concrete, at least as far as the average pore volume is concerned.
- the device required to carry out the method according to the invention is characterized in that a movable roller table is one with the same Ge speed moving plate belt, which runs beneath a loosely mounted crushing roller and leads to a vibrating roller, below which a conveyor belt is arranged, which leads to a screening plant and a downstream crusher.
- Each plate of the plate belt is designed as a box profile with a large section modulus, which is provided with teeth. These prevent the fittings from slipping and ensure a suitable grit.
- the crushing roller does not require a drive, but a device for height adjustment does. This can be regulated with a truck or with a hydraulic cylinder and the corresponding chuck plates.
- a bearing holder which unites the two roller bearings via a bracket, which is provided with lateral parallel guides and is guided on a non-positive frame, guides the resulting breaking reactions via the lining plates into the collecting and support frame.
- the roller bearing housings are filled with ball bearing grease and should be relubricated from time to time to prevent dust and moisture from entering.
- the crushing roller construction consists either of a drum which is stiffened with crimped die disks to accommodate the hub or of individual sheet disks which are provided with break teeth at given intervals to ensure that the crushing roller is "taken along" and achieve the desired crushing effect.
- the shape of the crushing teeth is chosen so that the rods do not get caught on the teeth.
- the tooth tips are chamfered to split the gas concrete mass more easily and thus avoid crumbling due to the high contact pressure.
- the tooth flanks are curved so that the wire mats can be detached from the teeth better.
- the roller scraper is attached to the roller bracket to prevent the scraper from being adjusted to the required gap setting.
- a scraper is required on the plate belt, which is attached to the head of the belt.
- the purpose of the wipers is to lift off the individual rods that may be held between the teeth in the gas concrete. These bars, which come off the steel mats when broken, tend to reel up and could lead to malfunctions.
- the rubbing device consist of a polygonal roller, which is driven at a speed that is adapted to the conditions. The remaining gas concrete pieces still lying on the steel mats are effectively separated.
- the roller consists of a sheet polygon, the edges of which are rounded. The sheet polygon is welded between two disks, which fulfill the simultaneous function as rotating baffles and as a hub holder.
- FIG. 1 shows a longitudinal section through the feed and spreading part of the device, comprehending the roller table, the plate belt, the crushing roller and the funnel
- FIG. 2 shows a cross section through the crushing roller and plate belt
- 3 represents a longitudinal section through the separation part of the device.
- Fig. 1 shows the collage (10), which leads the shaped pieces, not shown, to the plate sheet (20).
- the rollers (11) are usefully at the same height as the apexes of the teeth (21) of the plate belt (20).
- the roles (11) can be a group or an Have zcl drive.
- the roller table (10) also has a guardrail (12) in order to give the fittings the desired parallelism to the direction of travel when they are applied by forklift. There must be enough space under the roller table (10) for easy access for cleaning.
- the plate conveyor (20) has a drive (not shown).
- the crushing roller which consists of several disks (31), which are provided with teeth (32).
- the crushing roller is stored loosely.
- Scraper (35) grips between the individual disks to remove stuck concrete fragments.
- the angular vibrating roller (40) which is driven in the conveying direction.
- the funnel (41) into which the vibrated concrete fragments and a number of the crossbars fall in order to reach the conveyor belt (42).
- a guide wall (44) is provided in the conveying direction behind the vibrating roller (40), the shape of which is suitable for guiding the exposed longitudinal bars and the non-shaken transverse bars into the container (45).
- FIG. 2 shows in particular the bridging roller consisting of a plurality of steel disks (31), these disks opening up a toothing (32), the dimension of which at least approximates the toothing (21) of the plate belt (20).
- roller (30) is loosely mounted, specifically by means of a device (33) and a regulator (34) for adjusting the height.
- baffle plates (36) On this side and beyond the gap between the plate belt (20) and the roller (30) there are baffle plates (36) against which the molded parts lean in the passage through the gap. This contributes to the desired Bröekclef perfect, because in the absence of these guide plates (36) there is a possibility of evasion, a less effective pre-break and in particular loosening of the steel portion from the concrete portion being observed.
- Fig. 3 shows the conveyor belt (42), which leads the concrete fragments to a vibrating screen (60).
- a vibrating screen 60
- This is equipped with easily exchangeable trestles, since only a separation of the oversize can be accomplished here.
- a repeated passage of individual poured concrete fragments does not burden the belt or the sieve.
- the cross bars are intercepted by means of the magnetic separator (50).
- the screen (60) guides the oversize on the conveyor belt (62), which in turn leads to a crusher, not shown.
- the screened material is prepared, fragmented gas concrete that can be used as a raw material for the production of heat-insulating molded parts and fillers.
- the oversize is expediently fed back to the crusher and the vibrating screen (60).
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren und eine Einrichtung zum Wiederaufbereiten von drahtmattenbewehrten Gasbetonformstücken insbesondere zum Trennen des Stahlanteils von Betonanteil und zum gezielten Zerkleinern des letzteren.The present invention relates to a method and a device for the reprocessing of wire mat reinforced gas concrete shaped pieces, in particular for separating the steel portion from the concrete portion and for the targeted comminution of the latter.
Bauelemente die aus drahtmattenbewehrtem Gasbeton bestehen, zeichnen sich durch eine hohe Festigkeit und insbesondere durch einen hohen Wärmeisolationsgrad aus. Gleichzeitig sind diese Bauelemente jedoch sehr anfällig gegen Stösse und sonstige Kontakte mit harten Gegenständen, sodass bei der Herstellung von Pormstüekeu aus Gasbeton regelmässig ein gewisser Prozentsatz als Ausschuss anfällt. Der Ausschuss fällt in Platteufragmenten von einer Länge von 3-6 m, einer Breite von rund 0,6 m und einer Dicke von 10-30 cm an.Components made of wire mesh reinforced gas concrete are characterized by high strength and in particular by a high degree of thermal insulation. At the same time, however, these components are very susceptible to impacts and other contacts with hard objects, so that a certain percentage of waste is regularly incurred in the production of molded parts from gas concrete. The rejects occur in plate fragments with a length of 3-6 m, a width of around 0.6 m and a thickness of 10-30 cm.
Da eine Wiederaufbereitung dieses Ausschusses ein umständliches Zerkleinern und insbesondere eine Trennung des Betonanteils von den SLahldrähten bzw. -stäbeu erfordert, das in Ermangelung geeigneter Vorrichtungen von Hand und zwar mit Hilfe von Hämmern und Brecheisen vor sich gehen müsste, ziehen die Hersteller es vor, die Ausschussware auf Deponien abzulegen.Since the reprocessing of this committee requires laborious comminution and, in particular, a separation of the concrete portion from the steel wires or rods, which, in the absence of suitable devices, would have to be done manually, with the help of hammers and crowbars, the manufacturers prefer that Place rejects on landfills.
Deponien sind grundsätzlich aus ökologischen und ästhetischen Gründen abzulehnen. Hierzu kommt, dass man durch das vermeintlich problemlose Wegwerfen dieser Ausschussware auf zwei wertvolle Produkte, nämlich Stahlschrott, sowie hochporösen wärmedämmcnden Gasbeton verzichtet, was nicht im Sinne eines energicbewussten Haushaltes sein durfte.Landfills are generally to be rejected for ecological and aesthetic reasons. In addition, the supposedly problem-free discarding of these rejects means that two valuable products, namely steel scrap, as well as highly porous, heat-insulating gas concrete are dispensed with, which should not be in the sense of an energy-conscious household.
Die in Frage kommenden Deponien befinden sich aus naheliegenden Gründen durchwegs in der Nähe der Anlagen zur Herstellung der Formstücke. Die Menge des abgelegten Ausschusses, sowie die Nähe desselben zu den Anlagen sind geeignet eine Weideraufbereitung wirtschaftlich attraktiv zu gestalten, unter der Voraussetzung, dass eine vorzugsweise automatisch arbeitende Einrichtung zur Verfügung steht, die in der Lage ist, die Trennung des Stahlantciles vom Betonteil, sowie die gezielte Zerkleinerung des letzteren zu weiterzuverarbeitenden Korngrössen vorzunehmen.For obvious reasons, the landfills in question are all in the vicinity of the systems for producing the fittings. The amount of the discarded scrap, as well as the proximity of the scrap to the plants, are suitable for making pasture processing economically attractive, provided that a preferably automatic device is available that is able to separate the steel anticile from the concrete part, as well to carry out the targeted comminution of the latter into grain sizes for further processing.
Das Ziel der Erfindung besteht somit darin, ein Verfahren zum vollautomatischen Trennen des Stahlanteils von Gasbetonformstücken vom Betonanteil und zum gezielten Zerkleinern des letzteren, sowie die hierfür erforderliche Einrichtung vorzuschlagen.The aim of the invention is therefore to propose a method for the fully automatic separation of the steel portion of gas concrete fittings from the concrete portion and for the targeted crushing of the latter, as well as the device required for this.
Dieses Ziel wird erreicht durch das erfindungsgemässe Verfahren das dadurch gekennzeichnet ist, dass man in einem ersten Arbeitsgang die drahtmaLtenbmvehrten Formstücke gleichzeitig an mehreren Stellen anbricht und den Verbund zwischen Stahlstäben und Beton löst, dass man in einem unmittelbar darauffolgenden Arbeitsgang die noch anhaftenden Formstucke einem Rütteleffekt unterwirft und hierbei die Betonfragmente abschüttelt und die Stahlstäbe blosslegt und dass man schlicsslich die Stahlstäbe absondert und die Betonfragmente durch Sieben und Brechen aufbereitet.This goal is achieved by the method according to the invention, which is characterized in that in a first operation the wire-reinforced fittings are broken open at several points at the same time and the bond between steel bars and concrete is loosened, and in an immediately following operation the molded pieces still adhering are subjected to a shaking effect and shaking off the concrete fragments and exposing the steel rods and finally separating the steel rods and preparing the concrete fragments by sieving and breaking.
Krfindungsgemäss vollzieht man das Anbrechen und das Lockern indem man die Formstücke in Richtung der Längsstäbe der darin eingebetteten DrahtmaLtcn auf ein bewegtes Schleppband aufgibt und sie durch den Spalt zwischen diesem und einer darüber angeordneten Brechwalze durchzieht.According to the invention, cracking and loosening are carried out by placing the shaped pieces in the direction of the longitudinal rods of the wire meshes embedded therein on a moving drag belt and pulling them through the gap between the latter and a crushing roller arranged above it.
Hierdurch wirkt auf die Formstüeke ein dynamischer mechanischer Druck, der den Gasbeton anbricht bzw. zum Brökkeln bringt und der insbesondere eine Lösung des Verbundes zwischen Beton und Stahl hervorruft.As a result, a dynamic mechanical pressure acts on the shaped pieces, which breaks the gas concrete or causes it to crumble and, in particular, causes a loosening of the bond between concrete and steel.
Es muss speziell darauf hingewiesen werden, dass ein statischer Druck oder eine Stossbelastuug nicht zur Lösung des spezifischen Problems geeignet wären. In der Tat handelt es sich hier um Zellenbeton, der bei der Anwendung von statischem Druck, etwa in einer Presse, gequetscht wird, jedoch nicht bröckelt. Aehnlich wirkt etwa ein Hammerschlag, der in einem Gasbetouformstück vorwiegend Eindrucke hinterlässt, jedoch den gewünschten Zerkleinerungs- und insbesondere Lockerungseffekt nicht in ausreichendem Mass herbeiführt.It must be specifically pointed out that a static pressure or a shock load would not be suitable for solving the specific problem. In fact, this is cellular concrete that is crushed when using static pressure, such as in a press, but does not crumble. A hammer blow, for example, has a similar effect, which leaves an impression in a gas concrete molding, but does not sufficiently produce the desired size reduction and, in particular, loosening effect.
Erfindungsgemäss führt man die vorgebrocheuen Formstücke über eine bewegte eckige Ruttelwalze und sammelt unterhalb dieser die abgetrennten Botonfragmente und die Querstäbe der Drahtbewchrung, deren Schweisstcllen beim Brechen grösstenteils zerstört wurden.According to the invention, the pre-broken fittings are moved over a moving angular vibrating roller and the boton fragments and the cross bars of the wire reinforcement, the welding rods of which were largely destroyed during breaking, are collected below this.
Was demnach insgesamt angestrebt und erreicht wird, ist ein zuerst erfolgender Bröckeleffckt, begleitet von einer zumindest teilweisen Lockerung der Stahlstäbe aus dem Verbund mit dem Beton, sowie ein darauffolgender Rütteleffekt.What is therefore sought and achieved overall is a crumbling effect that occurs first, accompanied by at least partial loosening of the steel rods from the composite with the concrete, and a subsequent shaking effect.
Es ist zu bemerken, dass die Stahlmatten aus Längs- und Querstäben bestehen, wobei die Verbindung durch Punktschweissen hergestellt ist. Im Verkauf des dynamischen Brech-Lockcrungsvorgangs werden auch die restlichen Punktschwcisstellen zum grössten Teil aufgebrochen.It should be noted that the steel mats consist of longitudinal and cross bars, the connection being made by spot welding. In the sale of the dynamic crushing loosening process, the remaining point weak spots are also largely broken open.
Es ist demnach wichtig, die zu brechenden Formstucke in Richtung der Längsstäbe auf das Schleppband aufzugeben und zwar werden die Matten durch das intensive Rütteln einerseits von den daran haftenden Betonfragementen befreit und andererseits kommt es teils beim Brechen, teils beim Rütteln zu einer Trennung der Längs- und der Querstäbe voneinander. Die langen Längsstäbe werden durch die Bewegung des Bandes weitergeschoben, während ein Grossteil der kurzen Querstäbe zusammen mit den Betonfragmenten unter dem Rüttler gesammelt werden. Wie man feststellt, kommt es bereits in diesem Stadium zu einer ersten groben Zerkleinerung des Betonanteils, zu einer Trennung des Stahlanteils vom Betonanteil, sowie zu einer teilweisen Trennung der Längsstäbe von den kürzeren Querstäben.It is therefore important to place the shaped pieces to be broken on the drag belt in the direction of the longitudinal bars, and the mats are intensively shaken on the one hand freed from the adhering concrete fragments and on the other hand there is a separation of the longitudinal and transverse bars from one another when breaking, partly when shaking. The long longitudinal bars are pushed further by the movement of the belt, while a large part of the short transverse bars are collected together with the concrete fragments under the vibrator. As can be seen, there is a first rough crushing of the concrete part, a separation of the steel part from the concrete part, as well as a partial separation of the longitudinal bars from the shorter cross bars already at this stage.
Die Längsstäbe werden in einen Behälter geschoben, während die Querstäbe mittels eines Magnetabscheiders vom Betonanteil getrennt werden.The longitudinal bars are pushed into a container, while the cross bars are separated from the concrete part using a magnetic separator.
Der nächste Schritt begreift logischerweise, dass man die Betonfragnente einem Vibrationssieb zuführt, dort die gewünschte Mindestkörnung abscheidet und das Ueberkorn einem Brecher zuführt.The next step logically understands that one feeds the concrete fragments to a vibrating sieve, separates the desired minimum grain size there and feeds the oversize to a crusher.
Was gewünscht wird, ist selbstverständlich eine Korngrösse, in der die einzelnen Körner noch Zellen enthalten, so dass das zerkleinerte Produkt noch die Merkmale des Zellen- bzw. Gasbetons aufweist. Ein Zerreiben des Betonanteils bis auf eine Feinstkörnung hingegen, läge nicht im Sinne der Wiederverwertung des aufbereiteten Materials als wärmedammende Substanz.What is desired is of course a grain size in which the individual grains still contain cells, so that the comminuted product still has the characteristics of cell or gas concrete. On the other hand, grinding the proportion of concrete down to a fine grain would not be in the sense of recycling the processed material as a heat-insulating substance.
Das absolute der in Frage kommenden Korngrösse richtet sich demnach nach der Beschaffenheit des ursprünglichen Gasbetons, zumindest was das mittlere Porenvolumen anbelangt.The absolute grain size in question therefore depends on the nature of the original gas concrete, at least as far as the average pore volume is concerned.
Die zur Durchführung des erfindungsgemässen Verfahrens erforderliche Einrichtung ist dadurch gekennzeichnet, dass einem beweglichen Rollgang ein mit gleicher Geschwindigkeit bewegtes Plattenband nachtiescltaltet ist, das unterhalb einer lose gelagerten Brechwalze verläuft und zu einer Rüttelwalze füihrt, unterhalb derer ein Transportband angeordnet ist, das zu einer Siebanlage und einem nachgeschalteten Brecher führt.The device required to carry out the method according to the invention is characterized in that a movable roller table is one with the same Ge speed moving plate belt, which runs beneath a loosely mounted crushing roller and leads to a vibrating roller, below which a conveyor belt is arranged, which leads to a screening plant and a downstream crusher.
Jede Platte des Plattcnbandes wird als Kastenprofil mit grossem Widerstandsmoment ausgeführt, welches mit Zähnen versehen ist. Diese hindern die Formstücke am Wegrutschen und gewährleisten eine passende Körnung. Die Brechwalze benötigt keinen Antrieb, wohl aber eine Vorrichtung zur Höhenverstllung. Diese kann mit einem Lastzug oder mit einem Hydraulikzylinder und den entsprechenden Futterplatten geregelt werden. Ein Lagerhalter, der über einen Bügel, welcher mit seitlichen Parallelführungen versehen ist und an einem kraftschlüssigen Rahmen geführt wird, die beiden Rollenlager vereinigt, leitet die entstehenden Brechreaktionen über die Futterplatten in den Auffang-und Stützrahmen. Die Rollenlagergehäuse sind mit Kugellagerfett gefüllt und sollten gelegentlich nachgeschmiert werden um besonders das Eindringen von Staub und Feuchtigkeit zu vermeiden.Each plate of the plate belt is designed as a box profile with a large section modulus, which is provided with teeth. These prevent the fittings from slipping and ensure a suitable grit. The crushing roller does not require a drive, but a device for height adjustment does. This can be regulated with a truck or with a hydraulic cylinder and the corresponding chuck plates. A bearing holder, which unites the two roller bearings via a bracket, which is provided with lateral parallel guides and is guided on a non-positive frame, guides the resulting breaking reactions via the lining plates into the collecting and support frame. The roller bearing housings are filled with ball bearing grease and should be relubricated from time to time to prevent dust and moisture from entering.
Die Brechwalzenkonstruktion besteht entweder aus einer Trommel die mit gezältnten Diechschciben ausgesteift ist um auch die Nabe aufnehmen zu können oder aus einzelnen Blechschciben, die in gegebenen Abständen mit Brechzähnen versehen sind um das "Mitnehmen" der Brechwalze zu sichern und den gewünschten Brechcffekt zu erreichen.The crushing roller construction consists either of a drum which is stiffened with crimped die disks to accommodate the hub or of individual sheet disks which are provided with break teeth at given intervals to ensure that the crushing roller is "taken along" and achieve the desired crushing effect.
Die Form der Brechzähne ist so gewählt, dass die Stäbe sich nicht an den Zähnen verfangen. Die Zahnköpfe sind angoschrägt um die Gasbetonmasse leichter zu spalten und so durch den hohen Anpressdruck ein Zerkrümmeln möglichst zu vermeiden. Die Zahnflanken sind gwölbt ausgeführt, damit die Drahtmatten sich besser von den Zähnen lösen.The shape of the crushing teeth is chosen so that the rods do not get caught on the teeth. The tooth tips are chamfered to split the gas concrete mass more easily and thus avoid crumbling due to the high contact pressure. The tooth flanks are curved so that the wire mats can be detached from the teeth better.
Der Walzenabstreifer ist am Bügel der Walze befestigt um das Anpassen des Abstreifers bei der jeweilig benötigten Spalteinstellung zu vermeiden.The roller scraper is attached to the roller bracket to prevent the scraper from being adjusted to the required gap setting.
Am Plattenband wird obenfalls ein Abstreifer benötigt der am Kopf des Bandes befestigt ist. Zweck der Abstreifer ist, die eventuell zwischen den Zahnen im Gasbeton festgehaltenen einzelnen Stäbe abzuheben. Diese Stäbe, die sich beim Brechen von den Stahlmatten lösen, neigen zum Aufhaspeln und könnten zu Betriebsstörungen fuhren.At the top, a scraper is required on the plate belt, which is attached to the head of the belt. The purpose of the wipers is to lift off the individual rods that may be held between the teeth in the gas concrete. These bars, which come off the steel mats when broken, tend to reel up and could lead to malfunctions.
Die Rültelvorrichtung bestehl aus einer mehreckigen Walze, die mit einer den Verhältnissen angepass len Drehzahl regelbar angetrieben wird. Die restlichen, noch auf den Stahlmatten liegenden Gasbetonstücke werden so wirkungsvoll gelrennl. Die Walze besteht aus einem Blechpolygon, dessen Kanten mit Abrundungen versehen sind. Das Blechpolygon ist zwisehen zwei Scheiben geschweisst, die die gleichzeitige Funktion als drehende Leitbleche und als Nabenhalter erfüllen.The rubbing device consist of a polygonal roller, which is driven at a speed that is adapted to the conditions. The remaining gas concrete pieces still lying on the steel mats are effectively separated. The roller consists of a sheet polygon, the edges of which are rounded. The sheet polygon is welded between two disks, which fulfill the simultaneous function as rotating baffles and as a hub holder.
Weitere Vorteile und Merkmale werden aus der Beschreibung der Zeichnungen ersichtlich, von denen die Fig. 1 eineu Längsschnitt durch den Aufgabe- und Breeherteil der Einrichtung zeigt, begreifend den Rollgang, das Plattenband, die Brechwalze und den Trichter, während die Fig. 2 einen Querschnitt durch die Brechwalze und das Plattenband zeigt; die Fig. 3 hingegen stellt einen Längsschnitt durch den Trcnnungs-Siebungs-Teil der Einrichtung dar.Further advantages and features will become apparent from the description of the drawings, of which FIG. 1 shows a longitudinal section through the feed and spreading part of the device, comprehending the roller table, the plate belt, the crushing roller and the funnel, while FIG. 2 shows a cross section through the crushing roller and plate belt; 3, on the other hand, represents a longitudinal section through the separation part of the device.
Fig.1 zeigt den Kollgang (10), der die nicht gezeigten Formstncke auf das Plattenbahd (20) führt. Die Rollen (11) befinden sich nützlicherweise auf der gleichen Höhe, wie die Scheitelpunkte der Zähne (21) des Plattenbandes (20).Fig. 1 shows the collage (10), which leads the shaped pieces, not shown, to the plate sheet (20). The rollers (11) are usefully at the same height as the apexes of the teeth (21) of the plate belt (20).
Die Rollen (11) können einen Gruppen- oder auch einen Einzclantrieb aufweisen. Der Rollgang (10) weist zudem eine Leitplanke (12) auf, um den Formstücken beim Aufbringen mittels Gabelstapler die gewünschte Parallelität zur Fahrtrichtung zu geben. Unter dem Rollgang (10) muss genügend Raum zum bequemen Zugang zweeks Reinigung bestehen Das Plattenband (20) meit einen nicht gezeigten Antrieb auf.The roles (11) can be a group or an Have zcl drive. The roller table (10) also has a guardrail (12) in order to give the fittings the desired parallelism to the direction of travel when they are applied by forklift. There must be enough space under the roller table (10) for easy access for cleaning. The plate conveyor (20) has a drive (not shown).
Man erkennt ferner die Brechwalze (30), die aus mehreren Scheiben (31) besteht, die mit einer Zahnung (32) versehen sind. Die Brechwalze ist lose gelagert. Zwischen die einzelnen Scheiben greifen Abstreifer (35), zur Entfernung von hängengebliebenen Betonfragmenten.One can also see the crushing roller (30), which consists of several disks (31), which are provided with teeth (32). The crushing roller is stored loosely. Scraper (35) grips between the individual disks to remove stuck concrete fragments.
Weiter erkennt man die eckige Rüttelwalze (40),welche in Förderrichtung angetrieben wird. Unterhalb dieser Rüttelvorrichtung befindet sich der Trichter (41) in den die losgerüttelten Betonfragmente und eine Anzahl der Querstäbe fallen um auf das Transportband (42) zu gelangen. In Förderrichtung hinter der Rüttelwalze (40) ist eine Leitwand (44) vorgesehen, deren Form geeignet ist die blossgelegten Längsstäbe und die nicht losgerüttelten Querstäbe in den Behälter (45) zu leiten.You can also see the angular vibrating roller (40) which is driven in the conveying direction. Below this vibrating device is the funnel (41) into which the vibrated concrete fragments and a number of the crossbars fall in order to reach the conveyor belt (42). A guide wall (44) is provided in the conveying direction behind the vibrating roller (40), the shape of which is suitable for guiding the exposed longitudinal bars and the non-shaken transverse bars into the container (45).
Die Figur 2 zeigt insbesondere die aus mehreren Stahlschciben (31) bestehende Brcehwalze, wobei diese Scheiben eine Zahnung (32) aufwciscn, deren Dimension der Zahnung (21) des Plattenbandes (20) zumindest nahekommt.FIG. 2 shows in particular the bridging roller consisting of a plurality of steel disks (31), these disks opening up a toothing (32), the dimension of which at least approximates the toothing (21) of the plate belt (20).
Man erkennt, dass die Walze (30) lose gelagert ist und zwar über Cleitsehienen (33) und einen Regler (34) zur Höhenvcrstellung aufweist.It can be seen that the roller (30) is loosely mounted, specifically by means of a device (33) and a regulator (34) for adjusting the height.
Diesseits und jenseits des Spaltes zwischen dem Plattenband (20) und der Walze (30) befinden sich Leitbleehe (36), gegen die sich die Forms tücke be im Durchgang durch den Spalt anlehnen. Dies trägt zum erwünschten Bröekcleffekt bei, da in Ermangelung dieser Leitbieche (36) eine Ausweichmöglichkeit gegeben ist, wobei eine weniger wirksame Vorbrcchung und insbesondere Lockerung des Stahlanteils vom Betonanteil beobachtet werden konnten.On this side and beyond the gap between the plate belt (20) and the roller (30) there are baffle plates (36) against which the molded parts lean in the passage through the gap. This contributes to the desired Bröekclef perfect, because in the absence of these guide plates (36) there is a possibility of evasion, a less effective pre-break and in particular loosening of the steel portion from the concrete portion being observed.
Die Fig. 3 zeigt das Transportband (42), das die Betonfragmente zu einem Vibrationssieb (60) führt. Dieses ist mit leicht auswechselbaren Siebböeken ausgerüstet, da hier ja nur eine Trennung des Ueberkorns zu bewerkstelligen ist. Ein mehrmaliger Durchgang von einzelnen übergossenen Betonfragmenten belastet weder das Band, noch das Sieb. llierbei werden die Querstäbe mittels des Magnetabscheiders (50) abgefangen. Das Sieb (60) führt das Ueberkorn auf das Transportband (62), das seinerseits zu einem nicht gezeigten Brecher führt. Das Siebgut ist aufbereiteter fragmentierter Gasbeton, der als Rohmaterial zur Herstellung wärmcdämmender Formteile und Füllmassen verwendet werden kann. Das Ueberkorn wird zweckmässig wieder dem Brecher und dem Vibrationssieb (60) zugeführt.Fig. 3 shows the conveyor belt (42), which leads the concrete fragments to a vibrating screen (60). This is equipped with easily exchangeable trestles, since only a separation of the oversize can be accomplished here. A repeated passage of individual poured concrete fragments does not burden the belt or the sieve. The cross bars are intercepted by means of the magnetic separator (50). The screen (60) guides the oversize on the conveyor belt (62), which in turn leads to a crusher, not shown. The screened material is prepared, fragmented gas concrete that can be used as a raw material for the production of heat-insulating molded parts and fillers. The oversize is expediently fed back to the crusher and the vibrating screen (60).
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU81983 | 1979-12-11 | ||
LU81983A LU81983A1 (en) | 1979-12-11 | 1979-12-11 | METHOD AND DEVICE FOR REPROCESSING WIRE MAT REINFORCED GAS-CONCRETE MOLDINGS |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0031787A1 true EP0031787A1 (en) | 1981-07-08 |
Family
ID=19729309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80630054A Withdrawn EP0031787A1 (en) | 1979-12-11 | 1980-11-26 | Method and device for recycling metal-mesh reinforced cellular-concrete moulded elements |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0031787A1 (en) |
ES (1) | ES497576A0 (en) |
LU (1) | LU81983A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0709135A1 (en) * | 1994-10-31 | 1996-05-01 | Lausitzer Bauschuttrecycling und Bau-GmbH | Crushing device for construction elements of reinforced concrete, rubble of reinforced concrete and the like |
US5762446A (en) * | 1994-01-07 | 1998-06-09 | Manatts Inc. | Methods & means for on-roadway recycling of pavement and recovering steels therefrom |
FR2771658A1 (en) * | 1997-11-28 | 1999-06-04 | Alain Lozahic | Crushing installation for reinforced concrete power line posts |
US7284717B1 (en) * | 2004-10-12 | 2007-10-23 | Road Processing Resources, Inc. | Recycling machine for precast concrete products |
CN107185661A (en) * | 2017-06-12 | 2017-09-22 | 上海陆达包装机械制造有限公司 | saggar material crusher |
CN111495487A (en) * | 2020-04-25 | 2020-08-07 | 郑宝玉 | Novel building rubbish system sand equipment |
CN111905908A (en) * | 2020-08-07 | 2020-11-10 | 郭金生 | Limestone powder making process |
CN112324182A (en) * | 2020-10-22 | 2021-02-05 | 江苏华宏科技股份有限公司 | Method and equipment for crushing reinforcing steel bars in rolling type concrete beam |
CN113102007A (en) * | 2021-04-16 | 2021-07-13 | 苏轶 | Construction waste recycling treatment system |
CN113751156A (en) * | 2021-10-14 | 2021-12-07 | 西安聚实废旧金属再生利用有限公司 | Abandonment reinforcing bar sorting system |
CN115178327A (en) * | 2022-06-30 | 2022-10-14 | 北京博德世达石油技术股份有限公司 | Eccentric roller sleeve outer cement sheath crusher |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2731424A1 (en) * | 1977-07-12 | 1979-01-25 | Gewerk Eisenhuette Westfalia | ROLLER CRUSHER |
-
1979
- 1979-12-11 LU LU81983A patent/LU81983A1/en unknown
-
1980
- 1980-11-26 EP EP80630054A patent/EP0031787A1/en not_active Withdrawn
- 1980-12-10 ES ES497576A patent/ES497576A0/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2731424A1 (en) * | 1977-07-12 | 1979-01-25 | Gewerk Eisenhuette Westfalia | ROLLER CRUSHER |
Non-Patent Citations (2)
Title |
---|
CEMENT, Band 8, August 1979, Amsterdam NL H. LAMBOTTE et al.: "Hergebruik sloopbeton", Seiten 330-331. * |
WEGEN, Band 54, Januar 1980 Boskoop, NL J.C.P. HEERKENS et al.: "Hergebruik van sloopbeton als cementgebonden funderingsmateriaal", Seiten 36-38 * Seite 36; Spalten 2 und 3, "Het breekproces" * * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5762446A (en) * | 1994-01-07 | 1998-06-09 | Manatts Inc. | Methods & means for on-roadway recycling of pavement and recovering steels therefrom |
US5921706A (en) * | 1994-01-07 | 1999-07-13 | Manatts, Inc. | Method and means for on-roadway recycling of pavement and recovering steels therefrom |
EP0709135A1 (en) * | 1994-10-31 | 1996-05-01 | Lausitzer Bauschuttrecycling und Bau-GmbH | Crushing device for construction elements of reinforced concrete, rubble of reinforced concrete and the like |
FR2771658A1 (en) * | 1997-11-28 | 1999-06-04 | Alain Lozahic | Crushing installation for reinforced concrete power line posts |
US7284717B1 (en) * | 2004-10-12 | 2007-10-23 | Road Processing Resources, Inc. | Recycling machine for precast concrete products |
CN107185661A (en) * | 2017-06-12 | 2017-09-22 | 上海陆达包装机械制造有限公司 | saggar material crusher |
CN111495487A (en) * | 2020-04-25 | 2020-08-07 | 郑宝玉 | Novel building rubbish system sand equipment |
CN111905908A (en) * | 2020-08-07 | 2020-11-10 | 郭金生 | Limestone powder making process |
CN112324182A (en) * | 2020-10-22 | 2021-02-05 | 江苏华宏科技股份有限公司 | Method and equipment for crushing reinforcing steel bars in rolling type concrete beam |
CN113102007A (en) * | 2021-04-16 | 2021-07-13 | 苏轶 | Construction waste recycling treatment system |
CN113751156A (en) * | 2021-10-14 | 2021-12-07 | 西安聚实废旧金属再生利用有限公司 | Abandonment reinforcing bar sorting system |
CN115178327A (en) * | 2022-06-30 | 2022-10-14 | 北京博德世达石油技术股份有限公司 | Eccentric roller sleeve outer cement sheath crusher |
Also Published As
Publication number | Publication date |
---|---|
LU81983A1 (en) | 1981-07-23 |
ES8203024A1 (en) | 1982-02-16 |
ES497576A0 (en) | 1982-02-16 |
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