WO2012001200A1 - Mechanical-hydraulic machine for the dredging of harbours, rivers, canals, swamps, lakes and beaches, at great depths - Google Patents

Mechanical-hydraulic machine for the dredging of harbours, rivers, canals, swamps, lakes and beaches, at great depths Download PDF

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Publication number
WO2012001200A1
WO2012001200A1 PCT/ES2011/070468 ES2011070468W WO2012001200A1 WO 2012001200 A1 WO2012001200 A1 WO 2012001200A1 ES 2011070468 W ES2011070468 W ES 2011070468W WO 2012001200 A1 WO2012001200 A1 WO 2012001200A1
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WO
WIPO (PCT)
Prior art keywords
machine
cables
tool
beaches
rivers
Prior art date
Application number
PCT/ES2011/070468
Other languages
Spanish (es)
French (fr)
Inventor
José Manuel CORTES SANTALLEA
Original Assignee
Santaella Estructuras Submarinas, Slu
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.)
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Publication date
Application filed by Santaella Estructuras Submarinas, Slu filed Critical Santaella Estructuras Submarinas, Slu
Publication of WO2012001200A1 publication Critical patent/WO2012001200A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E02F5/285—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with drag buckets or scraper plates
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4131—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device mounted on a floating substructure

Definitions

  • the present invention relates to a machine that has been specially designed for the cleaning of ports, rivers, canals, swamps, lakes and beaches, but which is equally usable in any other field in which performance at great depth is required.
  • the object of the invention is to transform a conventional backhoe machine into a machine for deep dredging by means of a substantial modification in the structural characteristics of said original machine, with which greater performance, greater versatility are achieved and all this reducing the time of execution with respect to a lattice machine with cable and pulley dragline type.
  • suction dredges or cable with pulley are usually used, which, although suitable for certain work circumstances, are not at all for others, since they suction solids with a particle size lower than a value planned but they are unable to absorb larger pieces, such as all kinds of man-generated pollutants that accumulate in ports and other areas that require periodic cleaning such as fishing ports.
  • Cranes with cables that act on certain tools such as octopuses, bivalves, batons, etc. are also used, but this type of machines has a low level in the pressure of the tools that allow handling, as well as presenting a mobility problem since This crane must be sequentially changed, with the loss of time that this entails.
  • backhoe or rotating machines with a bucket and a "crawler" mobility system is also known, but these machines have very limited work possibilities, particularly as far as depth is concerned, since it comes delimited by the length of the main lifting arm, the rocker and the size of the bucket itself, so that its use is restricted to very specific cases, with a range that does not exceed 4 or 5 meters.
  • the machine that the invention proposes uses as a base a conventional backhoe machine, to which the bucket is eliminated, incorporating in the free end of its rocker arm a set of movable pulleys that act as guides for the passage of cables that allow supporting tools such as octopuses, bivalves, batilones, hydraulic before cited, allowing in turn to reach very important depths, up to fifty meters and even higher.
  • the cables through the aforementioned mobile pulleys are supplied by winches provided with drums and located at the rear end of the rocker, said winches being operated from the controls of the machine cabin.
  • the machine also incorporates, on its tilting and main arm, preferably after the hydraulic cylinder for rocker operation, hydraulic hose supply reels, of length according to that of the aforementioned cables, which they are mobilized together with the latter and, like them, they are finished off in the work tool, so that the latter instead of closing by gravity and consequently with a minimum closing pressure, as conventionally happens, they close in a manner pressurized, also from controls established in the machine cabin, synchronized through solenoid valves set at the required pressures, so that the effectiveness of the tool is greatly enhanced.
  • Figure 1 shows a partial perspective view of a conventional backhoe machine, modified in accordance with the object of the invention.
  • Figure 2.- Shows an enlarged detail and also in perspective of the winch for supply and collection of the support cables of the tool.
  • Figure 3. Shows, finally, an enlarged and perspective detail of the hydraulic enclosures for supply and collection of the pressure supply hoses to the tool.
  • a set of mobile pulleys (7) is set, in which at least four pulleys, two for the passage of the cables (8) of the working tool (9, 9 '), and two others for the passage and guidance of many other hoses (10) through which a closing pressure is supplied to the tool (9, 9 ') in question.
  • the tools used may be bivalve, such as the one referenced with (9) in Figure 1, octopus such as the one referenced with (9 '), or any other deemed convenient according to the nature of the work to be performed.
  • the cables (8) that relate the machine to the tool (9, 9 '), are wound on a winch (1 1) provided with at least two pulleys (12), one for each cable, and operated by a motor (13), preferably a hydraulic motor, driven from the cabin (14) of the machine.
  • the winch (1 1) incorporates, in addition to the reels (12) mentioned for the cables (8), a pair of free-turning pulleys (15), for guiding the hoses (10) that extend from the tool (9) , 9 ') to a pair of supply reels (16) mounted on the arm (2), behind the hydraulic cylinder (6) of the rocker (5).
  • enclosures (16) are also hydraulically actuated from the machine cabin (14) through a feed tube (17) which is finished off in a rotating connection (18) to allow parallel to the supply of pressure to the tools, the necessary rotation of the envelopes (16) so that the extension or the withdrawal of the hoses (10) takes place.
  • the capacity in the possibility of working of the machine is only limited by the length of the cables (8) and the hoses (10), and consequently by the collection capacity of the drums (12) and the envelopes (16).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

The invention relates to a dredging machine which is based on a traditional backhoe excavator, but without a scoop. According to the invention, the free end of the working beam is provided with a set of movable pulleys serving as guides for the passage of cables that can be used to support tools such as hydraulic tools, grabs and clamshell buckets, such that very great depths of 50 metres and more can be reached. The cables extending through the above-mentioned movable pulleys are supplied by capstans provided with drums and located at the rear end of the working beam, said capstans being actuated from controls in the cab of the machine. In addition, the main rocker arm of the machine includes reels that supply hydraulic hoses having a length corresponding to that of the above-mentioned cables, which hoses are moved together with the cables and which, like the cables, terminate in the working tool. In this way, the tool does not close under the force of gravity and, consequently, with minimum closing pressure, as normally happens, but instead closes in a pressurised manner, using controls provided in the cab of the machine, synchronised by means of solenoid valves calibrated to the required pressures, such that the effectiveness of the tool is considerably improved.

Description

MAQUINA MECANICO-HIDRAULICA PARA DRAGADOS DE PUERTOS, RIOS CANALES, PANTANOS LAGOS Y PLAYAS A  MECHANICAL-HYDRAULIC MACHINE FOR DRAGADOS DE PUERTOS, RIVERS CANALES, PANTANOS LAGOS AND PLAYAS A
GRAN PROFUNDIDAD  GREAT DEPTH
D E S C R I P C I Ó N D E S C R I P C I Ó N
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención se refiere a una máquina que ha sido especialmente concebida para la limpieza de puertos, ríos, canales, pantanos, lagos y playas, pero que es igualmente utilizable en cualquier otro ámbito en el que se requieran unas prestaciones a gran profundidad. The present invention relates to a machine that has been specially designed for the cleaning of ports, rivers, canals, swamps, lakes and beaches, but which is equally usable in any other field in which performance at great depth is required.
El objeto de la invención es transformar una máquina retroexcavadora convencional en una máquina para dragar a profundidad mediante una sustancial modificación en las características estructurales de dicha máquina original, con las que se consigue un mayor rendimiento, una mayor versatilidad y todo ello reduciendo el tiempo de ejecución con respecto a una maquina de celosía tipo dragalina de cable y poleas. The object of the invention is to transform a conventional backhoe machine into a machine for deep dredging by means of a substantial modification in the structural characteristics of said original machine, with which greater performance, greater versatility are achieved and all this reducing the time of execution with respect to a lattice machine with cable and pulley dragline type.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
En la limpieza de puertos se utilizan habitualmente dragas de succión o cable con polea (dragalinas) que, si bien resultan idóneas para ciertas circunstancias de trabajo, no lo son en absoluto para otras, ya que aspiran los sólidos con una granulometría inferior a un valor previsto, pero son incapaces de absorber piezas de mayor tamaño, como por ejemplo todo tipo de residuos contaminantes generados por el hombre que se acumulan en puertos y otras zonas que requieren de limpieza periódica como por ejemplo los puertos pesqueros. In port cleaning, suction dredges or cable with pulley (draglines) are usually used, which, although suitable for certain work circumstances, are not at all for others, since they suction solids with a particle size lower than a value planned but they are unable to absorb larger pieces, such as all kinds of man-generated pollutants that accumulate in ports and other areas that require periodic cleaning such as fishing ports.
Se utilizan también grúas con cables que actúan sobre determinados útiles tales como pulpos, bivalvas, batillones, etc., pero este tipo de máquinas presentan un bajo nivel en la presión de los útiles que permiten manipular, además de presentar un problema de movilidad ya que dicha grúa debe ser cambiada secuencialmente de sitio, con la pérdida de tiempo que esto conlleva. Cranes with cables that act on certain tools such as octopuses, bivalves, batons, etc. are also used, but this type of machines has a low level in the pressure of the tools that allow handling, as well as presenting a mobility problem since This crane must be sequentially changed, with the loss of time that this entails.
También es conocida la utilización de máquinas retroexcavadoras o giratorias provistas de un cazo y de un sistema de movilidad por "orugas", pero estas máquinas ven muy limitadas sus posibilidades de trabajo, particularmente en lo que a la profundidad se refiere, dado que ésta viene delimitada por la longitud del brazo principal de elevación, del balancín y del tamaño del propio cazo, de manera que su utilización queda restringida a casos muy concretos, con un alcance que no llega a sobrepasar los 4 ó 5 metros. The use of backhoe or rotating machines with a bucket and a "crawler" mobility system is also known, but these machines have very limited work possibilities, particularly as far as depth is concerned, since it comes delimited by the length of the main lifting arm, the rocker and the size of the bucket itself, so that its use is restricted to very specific cases, with a range that does not exceed 4 or 5 meters.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
La máquina que la invención propone utiliza como base una máquina retroexcavadora convencional, a la que se elimina el cazo, incorporando en la extremidad libre de su balancín un juego de poleas movibles que actúan como guías para paso de cables que permiten sustentar a útiles como los pulpos, bivalvas, batilones, hidráulicos anteriormente citados, permitiendo a su vez alcanzar profundidades muy importantes, de hasta cincuenta metros e incluso superiores. The machine that the invention proposes uses as a base a conventional backhoe machine, to which the bucket is eliminated, incorporating in the free end of its rocker arm a set of movable pulleys that act as guides for the passage of cables that allow supporting tools such as octopuses, bivalves, batilones, hydraulic before cited, allowing in turn to reach very important depths, up to fifty meters and even higher.
Los cables pasantes por las citadas poleas móviles, son suministrados por cabrestantes provistos de tambores y situados en la extremidad posterior del balancín, siendo dichos cabrestantes accionados desde los mandos de la cabina de la máquina. The cables through the aforementioned mobile pulleys are supplied by winches provided with drums and located at the rear end of the rocker, said winches being operated from the controls of the machine cabin.
De acuerdo con otra de las características de la invención, la máquina incorpora además sobre su brazo basculante y principal, preferentemente tras el cilindro hidráulico de accionamiento del balancín, carretes suministradores de latiguillos hidráulicos, de longitud acorde con la de los cables anteriormente citados, que se movilizan conjuntamente con éstos últimos y que, al igual que ellos, se rematan en el útil de trabajo, de manera que éste último en lugar de cerrarse por gravedad y consecuentemente con una presión de cierre mínima, como sucede convencionalmente, se cierran de forma presurizada, también desde mandos establecidos en la cabina de la máquina, sincronizados a través de electroválvulas taradas a las presiones requeridas, con lo que la efectividad del útil se ve notablemente potenciada. According to another of the features of the invention, the machine also incorporates, on its tilting and main arm, preferably after the hydraulic cylinder for rocker operation, hydraulic hose supply reels, of length according to that of the aforementioned cables, which they are mobilized together with the latter and, like them, they are finished off in the work tool, so that the latter instead of closing by gravity and consequently with a minimum closing pressure, as conventionally happens, they close in a manner pressurized, also from controls established in the machine cabin, synchronized through solenoid valves set at the required pressures, so that the effectiveness of the tool is greatly enhanced.
Estos latiguillos son igualmente guiados por las poleas móviles anteriormente citadas hasta alcanzar el útil de que se trate. Cabe señalar por último que la facilidad y rapidez de montaje de los elementos descritos y que constituyen las modificaciones de la nueva máquina con respecto de una retroexcavadora convencional, permiten también de la misma manera, es decir con rapidez y simplicidad, restablecer la situación inicial de la máquina, es decir convertirla de nuevo en una máquina retroexcavadora. DESCRIPCIÓN DE LOS DIBUJOS These hoses are also guided by the aforementioned mobile pulleys until they reach the tool in question. Finally, it should be noted that the ease and speed of assembly of the described elements and that they constitute the modifications of the new machine with respect to a conventional backhoe, also allow, in the same way, that is to say quickly and simply, to restore the initial situation of the machine, that is, converting it back into a backhoe machine. DESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. In an illustrative and non-limiting manner, the following has been represented:
La figura 1.- Muestra una vista parcial en perspectiva de una máquina retroexcavadora convencional, modificada de acuerdo con el objeto de la invención. La figura 2.- Muestra un detalle ampliado y también en perspectiva del cabrestante para suministro y recogida de los cables de sustentación del útil. Figure 1 shows a partial perspective view of a conventional backhoe machine, modified in accordance with the object of the invention. Figure 2.- Shows an enlarged detail and also in perspective of the winch for supply and collection of the support cables of the tool.
La figura 3.- Muestra, finalmente, un detalle también ampliado y en perspectiva de los envolventes hidráulicos para suministro y recogida de los latiguillos de suministro de presión al útil. Figure 3.- Shows, finally, an enlarged and perspective detail of the hydraulic enclosures for supply and collection of the pressure supply hoses to the tool.
REALIZACIÓN PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
A la vista de las figuras reseñadas, en particular de la figura 1 , puede observarse como la máquina para la limpieza de puertos, playas y similares que la invención propone, está constituida en base a una máquina retroexcavadora convencional, a cuyo chasis (1), con sus correspondientes medios de movilización, no representados, se une basculantemente un brazo principal (2), basculante con la colaboración de cilindros hidráulicos (3), que recibe por su extremidad libre y a través de una articulación (4) al clásico balancín (5), accionable mediante un cilindro hidráulico (6). In view of the figures outlined, in particular of Figure 1, it can be seen as the machine for cleaning ports, beaches and the like proposed by the invention, is constituted on the basis of a conventional backhoe, whose chassis (1) , with their corresponding mobilization means, not shown, joins a main arm (2), tilting with the collaboration of hydraulic cylinders (3), which receives by its free end and through a joint (4) to the classic rocker arm (5), operable by means of a hydraulic cylinder (6).
De acuerdo ya con la invención, a la extremidad libre del balancín (5) y en sustitución del clásico cazo que incorpora este tipo de máquinas, se fija un juego de poleas móviles (7), en el que participan al menos cuatro poleas, dos para paso de los cables (8) del útil de trabajo (9, 9'), y otras dos para el paso y guiado de otros tantos latiguillos (10) a través de los que se suministra una presión de cierre al útil (9, 9') de que se trate. In accordance with the invention, to the free end of the rocker (5) and replacing the classic bucket that incorporates this type of machines, a set of mobile pulleys (7) is set, in which at least four pulleys, two for the passage of the cables (8) of the working tool (9, 9 '), and two others for the passage and guidance of many other hoses (10) through which a closing pressure is supplied to the tool (9, 9 ') in question.
Los útiles empleados pueden ser bivalvas, como la referenciada con (9) en la figura 1, pulpos como el referenciado con (9'), o cualquier otro que se estime conveniente de acuerdo con la naturaleza del trabajo a realizar. The tools used may be bivalve, such as the one referenced with (9) in Figure 1, octopus such as the one referenced with (9 '), or any other deemed convenient according to the nature of the work to be performed.
En cualquier caso los cables (8) que relacionan la máquina con el útil (9, 9'), se enrollan sobre un cabestrante (1 1) provisto de al menos dos poleas (12), una para cada cable, y accionado por un motor (13), preferentemente un motor hidráulico, accionado desde la cabina (14) de la máquina. In any case, the cables (8) that relate the machine to the tool (9, 9 '), are wound on a winch (1 1) provided with at least two pulleys (12), one for each cable, and operated by a motor (13), preferably a hydraulic motor, driven from the cabin (14) of the machine.
El cabestrante (1 1) incorpora, además de los carretes (12) citados para los cables (8), una pareja de poleas (15) de libre giro, para guiado de los latiguillos (10) que se extienden desde el útil (9, 9') hasta una pareja de carretes suministradores (16) montados sobre el brazo (2), por detrás del cilindro hidráulico (6) de basculación del balancín (5). The winch (1 1) incorporates, in addition to the reels (12) mentioned for the cables (8), a pair of free-turning pulleys (15), for guiding the hoses (10) that extend from the tool (9) , 9 ') to a pair of supply reels (16) mounted on the arm (2), behind the hydraulic cylinder (6) of the rocker (5).
Estas envolventes (16) son también accionadas hidráulicamente desde la cabina (14) de la máquina a través de un tubo de alimentación (17) que se remata en una conexión giratoria (18) para permitir paralelamente al suministro de presión a los útiles, el giro necesario de las envolventes (16) para que se produzca la extensión o el retraimiento de los latiguillos (10) Como se desprende de lo anteriormente expuesto, la capacidad en la posibilidad de trabajo de la máquina viene tan solo limitada por la longitud de los cables (8) y de los latiguillos (10), y consecuentemente por la capacidad de recogida de los tambores (12) y las envolventes (16). These enclosures (16) are also hydraulically actuated from the machine cabin (14) through a feed tube (17) which is finished off in a rotating connection (18) to allow parallel to the supply of pressure to the tools, the necessary rotation of the envelopes (16) so that the extension or the withdrawal of the hoses (10) takes place. above, the capacity in the possibility of working of the machine is only limited by the length of the cables (8) and the hoses (10), and consequently by the collection capacity of the drums (12) and the envelopes (16).

Claims

R E I V I N D I C A C I O N E S R E I V I N D I C A C I O N E S
Ia.- Máquina mecánico-hidráulica para dragados de puertos, ríos, canales pantanos, lagos y playas a gran profundidad, en la que se establece un chasis (1) móvil sobre el terreno, del que emerge un brazo principal y basculante (2), rematado en un balancín (5), basculante con la colaboración de un cilindro (6), de manera análoga a una máquina retroexcavadora convencional, caracterizada porque en la extremidad libre del balancín (5) incorpora un juego de poleas (7) montadas con libertad de giro, para paso de cables (8) de suspensión de un útil de trabajo (9, 9'), así como para paso de latiguillos (10) que suministran presión al citado útil (9, 9'), siendo los citados cables (3) suministrados por al menos un cabestrante (1 1) provisto de al menos una pareja de tambores (12), mientras que los latiguillos (10) son a su vez suministrados por al menos una pareja de envolventes (16) materializadas igualmente en carretes para el arrollamiento/desarrollamiento de dichos latiguillos. I .- mechanical-hydraulic to machine for dredging harbors, rivers, canals , swamps, lakes and beaches deep, in which a chassis (1) moving on the ground is established, from which emerges a main arm and rocker (2 ), topped on a rocker (5), tilting with the collaboration of a cylinder (6), analogously to a conventional backhoe machine, characterized in that it incorporates a set of pulleys (7) mounted on the free end of the rocker (5) with freedom of rotation, for the passage of cables (8) for suspension of a work tool (9, 9 '), as well as for passage of hoses (10) that supply pressure to said tool (9, 9'), being the said cables (3) supplied by at least one winch (1 1) provided with at least one pair of drums (12), while the hoses (10) are in turn supplied by at least one pair of materialized enclosures (16) also in reels for the winding / development of said latiguill you.
2a.- Máquina mecánico-hidráulica para dragados de puertos, ríos, canales pantanos, lagos y playas a gran profundidad, según reivindicación 1, caracterizada porque los tambores (12) del cabestrante (1 1) son accionados por un motor hidráulico (13) comandado desde la cabina (14) de la máquina. 2 .- mechanical-hydraulic for dredged from harbors, rivers, canals swamps, lakes and beaches deep Machine according to claim 1, characterized in that the drums (12) of the winch (1 1) are driven by a hydraulic motor (13 ) commanded from the cabin (14) of the machine.
3a.- Máquina mecánico-hidráulica para dragados de puertos, ríos, canales pantanos, lagos y playas a gran profundidad, según reivindicaciones anteriores, caracterizada porque en el eje del cabestrante (1 1) se establecen al menos una pareja de poleas montadas con libertad de giro (15) en funciones de elementos de guía para los latiguillos (10) desde sus envolventes o carretes (16) hacia el útil. 4a.- Máquina mecánico-hidráulica para dragados de puertos, ríos, canales pantanos, lagos y playas a gran profundidad, según reivindicaciones anteriores, caracterizada porque los carretes de recogida de los latiguillos (10) son accionados desde la cabina (14) de la máquina, a través de un conducto (17) de fluido a presión, que se remata en un colector giratorio (18) de acoplamiento a las envolventes o carretes (16). 3 .- mechanical-hydraulic machine dredged from harbors, rivers, canals swamps, lakes and deep beaches, according to previous claims, characterized in that the axis of the winch (1 : 1) establishing at least one pair of pulleys mounted with freedom of rotation (15) depending on guide elements for the hoses (10) from their enclosures or reels (16) to the tool. 4 .- mechanical-hydraulic machine dredged from harbors, rivers, canals swamps, lakes and deep beaches, according to previous claims, characterized in that the reels collection hoses (10) are operated from the cab (14) the machine, through a conduit (17) of pressurized fluid, which is finished off in a rotating manifold (18) for coupling to the enclosures or reels (16).
5a.- Máquina mecánico-hidráulica para dragados de puertos, ríos, canales pantanos, lagos y playas a gran profundidad, según reivindicaciones anteriores, caracterizada porque el útil de trabajo es indistintamente una bivalva (9), un pulpo (9'), un batilón o cualquier otro apropiado. 5 .- mechanical-hydraulic machine dredged from harbors, rivers, canals swamps, lakes and deep beaches, according to previous claims, characterized in that the working tool is either a bicuspid (9), an octopus (9 '), a batilón or any other appropriate.
PCT/ES2011/070468 2010-06-28 2011-06-28 Mechanical-hydraulic machine for the dredging of harbours, rivers, canals, swamps, lakes and beaches, at great depths WO2012001200A1 (en)

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ES201030673U ES1073032Y (en) 2010-06-28 2010-06-28 MECHANICAL-HYDRAULIC MACHINE FOR DRAGATES OF PORTS, CHANNEL RIVERS, LAKE PANTANS AND BEACHES TO GREAT DEPTH
ESU201030673 2010-06-28

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Publication number Priority date Publication date Assignee Title
CN111321771A (en) * 2020-02-26 2020-06-23 深圳市宏大建设集团有限公司 Black and odorous river surge treatment equipment and method
CN111321771B (en) * 2020-02-26 2022-05-20 广东华茂水电生态集团有限公司 Black and odorous river treatment equipment and method

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