ES2346385B1 - CONCRETE RECOVERY MACHINE. - Google Patents
CONCRETE RECOVERY MACHINE. Download PDFInfo
- Publication number
- ES2346385B1 ES2346385B1 ES200800274A ES200800274A ES2346385B1 ES 2346385 B1 ES2346385 B1 ES 2346385B1 ES 200800274 A ES200800274 A ES 200800274A ES 200800274 A ES200800274 A ES 200800274A ES 2346385 B1 ES2346385 B1 ES 2346385B1
- Authority
- ES
- Spain
- Prior art keywords
- drum
- concrete
- mouth
- chopping board
- threshold value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 210000000481 breast Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/56—Drum classifiers
-
- 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
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
-
- 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
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Máquina de recuperación de hormigón.Concrete recovery machine.
Comprende un tambor (2), dotado en su interior de un tornillo sin fin (3) extractor y accionado por un motor reductor, en que los áridos separados son dirigidos hacia una salida (6) y el cemento más el agua hacia otra salida, estando provista la máquina (1) de una tolva (4) para la alimentación de hormigón fresco sin fraguar al interior del tambor (2) a través de una embocadura (10) de entrada de la que está provisto el tambor. Tiene una tajadera (8) de movimiento vertical, para el cierre de la embocadura (10), guiada sobre guías (12, 12') y adaptada para abrir la embocadura (10) en condición operativa normal, y para cerrarse cuando el peso de hormigón en el interior del tambor (2), o la sobrecarga del motor reductor del sinfín (3), superan un respectivo y correspondiente valor umbral predeterminado. Cuando el consumo eléctrico del motor alcanza un valor umbral predeterminado, se hace bajar la tajadera (8).It includes a drum (2), equipped inside of an endless screw (3) extractor and driven by a motor reducer, in which the separated aggregates are directed towards an exit (6) and cement plus water to another exit, with the machine (1) of a hopper (4) for feeding fresh concrete without setting inside the drum (2) through a mouth (10) input from which the drum is provided. Has a vertical movement chopping board (8), for closing the mouth (10), guided on guides (12, 12 ') and adapted to open the mouth (10) in normal operating condition, and to close when the weight of concrete inside the drum (2), or the worm gear motor overload (3), exceed a respective and corresponding predetermined threshold value. When consumption electric motor reaches a predetermined threshold value, it is done lower the chopping board (8).
Description
Máquina de recuperación de hormigón.Concrete recovery machine.
La presente invención se refiere a una máquina de recuperación de hormigón, del tipo de las que comprenden un tambor dotado en su interior de un tornillo sin fin extractor y accionado por un motor reductor, en que los áridos separados son dirigidos hacia una salida y el cemento más el agua hacia otra salida, estando provista la máquina de una tolva para la alimentación de hormigón fresco sin fraguar al interior del tambor a través de una embocadura de entrada de la que está provisto el tambor.The present invention relates to a machine of concrete recovery, of the type that include a drum endowed inside with an endless screw extractor and driven by a reducing motor, in which the separated aggregates are directed towards an exit and cement plus water towards another output, the machine being provided with a hopper for fresh concrete feed without setting inside the drum through an inlet mouth of which the drum.
Actualmente son bien conocidas máquinas de recuperación de hormigón, en que el hormigón fresco sobrante, previo a su fraguado, por ejemplo de camiones-hormigonera, en plantas de hormigón y industrias del prefabricado (vigas, tubos, bloques y placas) es separado en sus componentes arena, áridos gruesos y agua. Son conocidas máquinas para separar estos componentes del hormigón "sobrante", basadas en alimentar este hormigón sobrante a través de una tolva de alimentación, en establecer un flujo a contracorriente del hormigón entrante en el seno de un tambor "clasificador", eventualmente con agua añadida, en el cual hay un tornillo sin fin extractor, que dirige los áridos (grava y arena) separados hacia una salida y el cemento más el agua hacia otra salida.Currently they are well known machines concrete recovery, in which the remaining fresh concrete, prior to its setting, for example of concrete mixer trucks, in concrete plants and prefabricated industries (beams, pipes, blocks and plates) is separated into its sand components, aggregates thick and water. Machines are known to separate these "leftover" concrete components, based on feeding this leftover concrete through a feed hopper, in establish a countercurrent flow of incoming concrete into the breast of a drum "classifier", eventually with water added, in which there is an endless screw extractor, which directs the aggregates (gravel and sand) separated towards an exit and the cement plus water to another exit.
Por las patentes US4127478, DE9200331U, EP652048, DE19527464, DE3928528, EP0730909, US5778910 se conocen sendas máquinas de la técnica anterior del tipo antes indicado, a las cuales son aplicables los principios de la presente invención.By US4127478, DE9200331U, EP652048, DE19527464, DE3928528, EP0730909, US5778910 are known two prior art machines of the type indicated above, to which are applicable the principles of the present invention.
En algunos casos, se ha incorporado a la salida del sinfín extractor de los áridos una criba selectora para la perfecta separación de los finos y de áridos gruesos, lo que permite efectuar una recuperación total del hormigón y la reutilización de la materia prima para la nueva fabricación del producto.In some cases, it has been incorporated at the exit of the auger extractor of the aggregates a selection screen for the perfect separation of fines and coarse aggregates, which allows make a total recovery of the concrete and reuse of The raw material for the new manufacture of the product.
Uno de los problemas que presentan estas máquinas de la técnica anterior es que si se llena el tambor, se solidifica o fragua el hormigón fresco, y la máquina tiene que limpiarse. Es frecuente que esta operación tenga que realizarse cada dos o tres días, lo cual obliga a tener que parar la máquina, con el consiguiente incremento de costes operativos y de pérdidas en productividad por los tiempos muertos ocasionados.One of the problems that these present prior art machines is that if the drum is filled, it solidifies or forges the fresh concrete, and the machine has to clean up Often this operation has to be performed every two or three days, which forces to have to stop the machine, with the consequent increase in operating costs and losses in productivity due to downtime.
Otro problema no menos importante es que al haber un exceso de material dentro del tambor y sobre el sinfín, el motor reductor de éste puede sufrir una sobre carga y dañarse.Another no less important problem is that at there is an excess of material inside the drum and over the auger, the The motor reducer can suffer an overload and be damaged.
La presente invención tiene por finalidad proporcionar una solución a estos problemas.The present invention aims at Provide a solution to these problems.
A tal finalidad, el objeto de la presente invención es una máquina de recuperación de hormigón, de nuevo concepto y funcionalidad, que en su esencia se caracteriza porque comprende una tajadera de movimiento vertical, para el cierre de la embocadura, guiada sobre guías y adaptada para abrir la embocadura en condición operativa normal, y para cerrarse cuando el peso de hormigón en el interior del tambor, o la sobrecarga del motor reductor del sinfín, superan un valor umbral predeterminado.To this end, the purpose of this invention is a concrete recovery machine, again concept and functionality, which is essentially characterized by It includes a vertical movement chopping board, for closing the mouthpiece, guided on guides and adapted to open the mouthpiece in normal operating condition, and to close when the weight of concrete inside the drum, or motor overload auger reducer, exceed a predetermined threshold value.
Según otra característica de la máquina de la presente invención, la tajadera comprende unos medos de accionamiento, dotados de cilindros de acción vertical, preferiblemente hidráulicos, y de unos medios motores.According to another characteristic of the machine of the In the present invention, the chopping board comprises measures of drive, equipped with vertical action cylinders, preferably hydraulic, and motor means.
La máquina estará preferentemente dotada de unos medios de medición del consumo eléctrico del motor reductor del tambor de modo que, cuando el consumo eléctrico medido alcanza el citado valor umbral predeterminado, representativo de una presencia excesiva de material en el interior del tambor, se hace bajar la tajadera, para que no siga penetrando hormigón fresco a tratar.The machine will preferably be equipped with some Means for measuring the electrical consumption of the reduction motor drum so that, when the measured electrical consumption reaches the cited default threshold value, representative of a presence excessive material inside the drum, the chopping board, so that it does not penetrate fresh concrete to be treated.
En los dibujos adjuntos se ilustra, a título de ejemplo no limitativo, una forma de realización preferida, aunque no exclusiva, de la máquina de la presente invención. En dichos dibujos:The attached drawings illustrate, by way of non-limiting example, a preferred embodiment, although not exclusive, of the machine of the present invention. In sayings drawings:
la Fig. 1, es una vista en perspectiva de una máquina de acuerdo con la invención, con la tajadera en su posición cerrada, impidiendo la entrada de hormigón; yFig. 1, is a perspective view of a machine according to the invention, with the chopping board in position closed, preventing the entry of concrete; Y
la Fig. 2 es una vista análoga de la Fig. 1, pero con la tajadera en posición abierta, permitiendo la entrada de hormigón.Fig. 2 is an analogous view of Fig. 1, but with the chopping board in the open position, allowing the entry of concrete.
En dichos dibujos puede apreciarse que la máquina 1 de acuerdo con la presente invención, para la recuperación de hormigón fresco aún no fraguado, comprende, sobre una bancada 5, un tambor 2, dotado en su interior de un tornillo sin fin 3 extractor y animado de un movimiento rotatorio por un motor reductor (que por motivos de claridad y por ser de tipo en sí conocido, no ha sido mostrado). Los áridos son separados del agua y el cemento en el interior del tambor 2, de un modo convencional, por la acción combinada del tornillo sinfín 3 junto con la adición de agua, siendo dirigidos hacia una salida 6. El cemento más el agua se dirigen hacia otra salida (no apreciable en los dibujos), dispuesta en el extremo contrario de la salida 6 de áridos. El tornillo sinfín 3 se muestra a trazos en la Fig. 1.In these drawings it can be seen that the machine 1 according to the present invention, for recovery of fresh concrete not yet set, comprising, on a bench 5, a drum 2, provided inside with an endless screw 3 extractor and animation of a rotary movement by a reduction motor (which for reasons of clarity and because of the type itself known, has not been shown). Aggregates are separated from water and cement in the inside the drum 2, in a conventional way, by the action combined with auger 3 together with the addition of water, being directed towards an exit 6. Cement plus water are directed towards another exit (not noticeable in the drawings), arranged in the opposite end of exit 6 of aggregates. The worm 3 is dashed sample in Fig. 1.
La máquina 1 comprende una tolva 4, para la alimentación de hormigón fresco sin fraguar al interior del tambor 2 a través de una embocadura 10 (visible en la Fig. 2) de entrada de la que está provisto el tambor 2. Según el ejemplo ilustrado en los dibujos, la tolva 4 y la embocadura 10 están dispuestas en un lateral 11 del tambor 2, en un extremo contrario a la salida 6 de áridos.Machine 1 comprises a hopper 4, for fresh concrete feed without setting inside the drum 2 through a mouth 10 (visible in Fig. 2) of the entrance of which drum 2 is provided. According to the example illustrated in the drawings, the hopper 4 and the mouth 10 are arranged in a side 11 of the drum 2, at an opposite end to the outlet 6 of aggregates
El hormigón, procedente por ejemplo del sobrante presente en camiones hormigonera, es puesto sobre la tolva 4, desde donde penetra al tambor 2 a través de la embocadura 10. En el seno del tambor 2, la rotación relativa entre éste y el sinfín extractor 3 tiende a mover los sólidos áridos hacia la salida 6 y el cemento más el agua, con la eventual incorporación de agua adicional, en contracorriente respecto al desplazamiento del sinfín 3, tienden a ir hacia la otra salida del extremo contrario de la salida 6. En una realización preferente, ésta última está constituida por un sinfín extractor 6 para los áridos, aguas abajo del cual se encuentra una criba selectora 7 para la perfecta separación de los finos y de áridos gruesos, lo que permite efectuar una recuperación total del hormigón y la reutilización de la materia prima para la nueva fabricación del producto.The concrete, coming for example from the surplus present in concrete mixer trucks, it is placed on hopper 4, from where it penetrates drum 2 through the mouth 10. In the breast of drum 2, the relative rotation between it and the extractor fan 3 tends to move arid solids to exit 6 and cement more water, with the eventual incorporation of additional water, in countercurrent with respect to the displacement of the auger 3, tend to go to the other exit at the opposite end of exit 6. In one preferred embodiment, the latter is constituted by endless 6 extractor for aggregates, downstream of which is a 7 selection screen for perfect separation of fines and coarse aggregates, which allows a total recovery of the concrete and reuse of raw material for the new product manufacturing.
Según la invención, ante la embocadura 10 hay instalada una tajadera 8 de movimiento vertical, para el cierre de la embocadura 10, que se desplaza guiada sobre guías 12, 12'. La tajadera 8 comprende unos medos de accionamiento, dotados de al menos un cilindro 9 de acción vertical y de unos medios motores (no mostrados, al poder ser de tipo convencional).According to the invention, before the mouth 10 there are installed a chopping board 8 of vertical movement, for the closure of the mouth 10, which moves guided on guides 12, 12 '. The chopping board 8 comprises drive measures, provided with minus a cylinder 9 of vertical action and of some motor means (not shown, being able to be of the conventional type).
La máquina 1 comprenden unos medios de medición del consumo eléctrico del motor reductor de accionamiento del tambor 2 de modo que, cuando el consumo eléctrico medido excede un valor umbral predeterminado, representativo de una presencia excesiva de material en el interior del tambor 2, se hace bajar la tajadera 8, cerrando la embocadura 10, para que no siga penetrando hormigón fresco a tratar. También se podría considerar la posibilidad de proveer dichos medios de medición en el motor reductor del tornillo sinfín extractor 3.The machine 1 comprises measuring means of the electric consumption of the drum drive reduction motor 2 so that, when the measured electrical consumption exceeds a value predetermined threshold, representative of an excessive presence of material inside the drum 2, the chopping board 8 is lowered, closing the mouth 10, so that concrete does not continue to penetrate fresh to try. The possibility of providing said measuring means in the screw reduction motor endless extractor 3.
De esta manera, en posición operativa normal, la embocadura tajadera 8 se encuentra en posición elevada (Fig. 2), con el cilindro parcial o totalmente retraído, dejando abierta la embocadura 10. Cuando los medios de medición detectan una subida de consumo eléctrico del moto reductor por encima de un valor umbral, (representativo de que el peso de hormigón en el interior del tambor 2 supera un valor máximo predeterminado), para proteger la máquina 1, tales medios envían una señal a los medios motores para que bajen la tajadera 8, cerrando la embocadura 10 (Fig. 1) e impidiendo el acceso de una mayor cantidad de hormigón fresco a recuperar excesiva, que pudiera llenar, y obturar y dañar el interior del tambor 2.In this way, in normal operating position, the chopping block 8 is in the raised position (Fig. 2), with the cylinder partially or fully retracted, leaving the mouth 10. When the measuring means detect a rise in electric consumption of the gear motor above a threshold value, (representative of the concrete weight inside the drum 2 exceeds a predetermined maximum value), to protect the machine 1, such means send a signal to the motor means so that lower the chopping board 8, closing the mouth 10 (Fig. 1) and preventing access of a greater amount of fresh concrete to recover excessive, that could fill, and seal and damage the inside of the drum 2.
Cuando el consumo vuelve a bajar por debajo de otro valor máximo prefijado, entonces, vuelve a elevarse la tajadera 8 para el paso del material a tratar por la embocadura 10.When consumption drops again below another preset maximum value, then, the chopping board rises again 8 for the passage of the material to be treated through the mouth 10.
De esta manera, la máquina 1 queda protegida contra eventuales llenados indeseables y perjudiciales del tambor 2. Igualmente, el impedir el llenado del interior del tambor 2, la tajadera 10 motorizada y automatizada permite una operación en continuo de la máquina 1, evitando así paros de la misma para su limpieza interior cuando se llena.In this way, machine 1 is protected against possible undesirable and harmful filling of the drum 2. Likewise, preventing the filling of the inside of the drum 2, the motorized and automated chopping board 10 allows an operation in continuous of the machine 1, thus avoiding stoppages of the same for its Interior cleaning when full.
Descrita suficientemente la naturaleza de la presente invención, así como la manera de ponerla en práctica, se hace constar que todo cuanto no altere, cambie o modifique su principio fundamental, queda sujeto a variaciones de detalle.Describe sufficiently the nature of the The present invention, as well as how to implement it, is states that everything that does not alter, change or modify its fundamental principle, is subject to variations in detail.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200800274A ES2346385B1 (en) | 2008-02-01 | 2008-02-01 | CONCRETE RECOVERY MACHINE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200800274A ES2346385B1 (en) | 2008-02-01 | 2008-02-01 | CONCRETE RECOVERY MACHINE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2346385A1 ES2346385A1 (en) | 2010-10-14 |
| ES2346385B1 true ES2346385B1 (en) | 2011-09-12 |
Family
ID=42791113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200800274A Expired - Fee Related ES2346385B1 (en) | 2008-02-01 | 2008-02-01 | CONCRETE RECOVERY MACHINE. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2346385B1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2732138A (en) * | 1956-01-24 | forth | ||
| US3338472A (en) * | 1966-01-10 | 1967-08-29 | Mc Dowell Wellman Engineering | Anti-flushing automatic screw feeder |
| SE418807B (en) * | 1977-09-13 | 1981-06-29 | Boliden Ab | SET TO CONTROL A PAINTING AND PAINTING FOR PERFORMANCE OF THE SET |
| FR2440576A1 (en) * | 1978-10-30 | 1980-05-30 | Cambier Benjamin | Metering dispenser for granular materials - uses rotational speed control of screw conveyor to control dosing weight |
| DE3462223D1 (en) * | 1984-07-10 | 1987-03-05 | Stetter Gmbh | Re-treatment installation of waste concrete |
-
2008
- 2008-02-01 ES ES200800274A patent/ES2346385B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2346385A1 (en) | 2010-10-14 |
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