ES2214873T3 - SEPARATOR GRILLE. - Google Patents

Abstract

In a separating grid (1) for collection and removal of solid particles and objects (4) present in running water (2) and equipped with a separating unit (8) comprising alternate fixed and mobile grid bars (9 and 10, respectively), wherein the mobile grid bars (10) are connected at their upper parts (18) to a drive unit (16) to draw the solid particles and objects (4) step by step out of the water (2) and carry them along the fixed grid bars (9), up to an outlet (17), the mobile grid bars (10) are suspended in the area of their lower parts (19) from a cradle (21) disposed at the lower part (20) of the separating grid (1). Said cradle (21) comprises suspension units (25) on both sides of the separating unit (8), and each suspension unit (25) may comprise an upper rocker arm (27) the lower end (28) of which is articulated to the lower end (29) of the separating grid (1), and also two rocker links (31 , 32) articulated at their upper ends to the rocker arm (27) at a point intermediate the upper and lower ends (28, 34) of said arm and the lower ends (35) to the mobile grid bars (10).

Description

Separating grid

Technical field

The present invention relates to a grid separator for the collection and disposal of solid particles and the objects present in the running water, said grid being equipped with a separator unit arranged in an inclined position obliquely up, back in the direction of the flow of water, and comprising fixed and mobile grid slats alternate, configured with means for collection and disposal on those edges of the grid slats that look in the direction of the water flow, said grid slats being mobile connected to a drive unit in the area of your part upper and arranged to be operated by said unit to extract solid particles and objects from water step by step and transport them along the fixed grid slats, up to a drain.

Prior art

SE-C 470 102 is known a separating grid of the type defined above. According to this prior art configuration, the lower ends of the mobile grid slats are arranged to be guided in the separating grid giving them essentially a movement of front to back using the drive unit. Plus specifically, mobile grid slats are supported by a cross piece, which is mounted on the bottom of the grid to move there in a controlled way. Cross piece extends transversely in relation to the separator unit and It is formed on its short sides by some guide profile elements facing down, each of which is configured with a longitudinal groove Each slot receives a mounted guide rail on the grid for a controlled sliding movement in its interior, each of which is associated with its respective guide profile element.

Due to the willingness to assemble the piece transverse, and consequently the mobile grid slats for controlled sliding movement, an arrangement that communicates to these components a movement from front to back comparatively large, and due to the environment at the lower end of the separator unit that includes large amounts of particles solid and objects, not to mention hard objects, such as stones and gravel and the like, these sliding support means are exposed to considerable wear, consequently with higher maintenance and repair costs. Also, under the influence of for example the relatively high flow rate of water, hard objects can get stuck or trapped in some other way between the guide rails and the slots or among others moving parts of the support means, and in this way cause damage to these media and / or block mobile grid slats. To its Once, this can lead to breakdown of the separating grid complete, with the consequent problems in the form of stagnations of solid particles and objects, loss of production, and so on successively.

Summary of the Invention

The main objective on which the invention is to eliminate deficiencies and disadvantages synthesized above with respect to wear and damage in sliding support means at the lower end of the unit separator

This objective is achieved according to the invention by suspend mobile grid slats, in the area of your part bottom, from a support arranged at the bottom of the separating grid, said support comprising units of suspension on both sides of the separator unit.

According to a first embodiment particularly preferred, each separator unit preferably comprises a side an oscillating arm whose lower end is articulated to the lower end of the separating grid, and on the other two oscillating connectors whose upper ends are articulated to swing arm at an intermediate point between the upper ends and lower of said arm and whose opposite ends are subject to mobile grid slats.

According to a second embodiment particularly preferred, each suspension unit may comprise an element stem whose lower end is articulated to the lower end of the separating grid, as well as a tubular element that is installed on the rod element for its sliding movement longitudinally on it, and transmission means that are fixedly installed between the tubular element and the slats of mobile grid.

Brief description of the drawings

The invention will be described below. in detail referring to the attached drawings, in the what:

Fig 1 is a schematic perspective view obliquely from the front of a separating grid according to a particularly preferred embodiment currently, said said separating grid located in a running water channel, having removed for clarity some of its pieces.

Fig 2 is a side view of the grid separator of Fig 1, and

Fig 3 is a side projection of the grid separator corresponding to Fig 2, according to one embodiment particularly preferred today.

Description of preferred embodiments

The separating grid that is generally designated by reference number 1, it is intended for installation by example in a water treatment plant. Its purpose is to collect and remove solid particles and 4 objects present in water sewer current 2 in a channel 3 manufactured for example of concrete or similar. Particles and objects are removed by means of a conveyor, it is not shown, for its treatment subsequent and / or elimination.

Generally speaking, the separating grid 1 It is designed as a structural framework built from sections of frame profiles, which are not shown in greater detail. Cover plates, such as side plate 5, plates wall ends 6 and the bottom plates 7 are fixed to the profile sections for example by screws or and / or gaskets welding points The structural framework including the sections of frame profiles and plates are preferably manufactured to from a non-corrosive material, such as stainless steel or any other material that is resistant to the effects of water stream 2 and its contents. The side plates 5 form the lateral delimiting walls of the separating grid 1, while that the bottom and bottom plates 6, 7 delimit the walls upper back and upper bottom, respectively, of the separating grid.

Between the means of its side plates 5, the separator grid 1 supports a separator unit, designated in general by 8, which adopts an obliquely inclined position up and back, seen in the direction of flow A of the running water 2. The separator unit 8 comprises a certain number of alternating and juxtaposed fixed and mobile grid slats 9 and 10, respectively. The grid slats end in a point and are preferably made of stainless steel or some other material with sufficient resistance in this connection.

Briefly, the fixed grid slats 9 are fixedly attached to the separating grid 1, while the mobile grid slats 10 are secured mobile to it, in the manner described below in greater detail. The number of fixed and mobile grid slats 9, 10 can be varied depending on the desired width of the separating grid 1.

Both fixed and mobile grid slats 9, 10 are essentially straight views in its longitudinal extent and the edges of the slats facing the direction of flow A of water are created with collection and disposal means 11. These means 11 are in the form of depressions 12 and peaks 13 formed alternatively in succession essentially throughout the entire length of the grid slats 9, 10, becoming the deeper depressions and the highest and most pointed peaks, seen in the direction from the lower ends 14 of the slats of grid 9, 10 to the upper ends 15. As can be seen in the drawings, the depressions 12 and the peaks 13 are therefore comparatively shallow and low, respectively, in the lower ends 14, in whose area its configuration resembles the of small waves, and they become increasingly pronounced in the direction of the upper ends 15 of the grid slats, in whose area has a step-shaped configuration.

When operated by a unit of drive generally designated by reference 16 and described in more detail below, the mobile grid slats 10 of the collection and disposal means 11 described above they are intended to transport solid particles and objects 4 step by step up, out of running water 2 and a along the corresponding means of collection and disposal 11 from the fixed grid slats 9, to a discharge means or drain 17 located at the upper end of the separating grid, upstream of the upper ends 15 of the grid slats 9, 10. From this drain 17, the particles and objects 4 are removed through a conveyor or similar, not shown in greater detail, for further processing / processing and / or use / disposal

The mobile grid slats 10 are connected to drive unit 16 in the area of its upper part 18 and in the area of its lower part 19 are suspended in the part bottom 20 of the separating grid 1 by means of a support, designated in general by reference 21. More specifically, according to the embodiment shown, the mobile grid slats 10 are removably mounted in the area of its upper part 18 on two mobile upper transverse beams 22. The beams transverse 22 extend transversely with respect to the separating grid 1 below the side plates 5 and is connect to drive unit 16 in the manner described more Go ahead in greater detail. The mobile grid slats 10 are similarly mounted removably in the area of your part lower on two lower mobile transverse beams 23. These cross beams 23 are essentially similar to beams upper transverse 22 and like them extend transversely with respect to the separating grid 1 below of the side plates 5. The lower transverse slats 23 are connect to support 21 in a way that will also be described more ahead.

On the other hand, the fixed grid slats 9 are mounted removably between its ends 14, 15 on beams cross sections 24 separate from each other, in this case over four of these cross beams. These cross beams they also extend transversely with respect to the grid separator 1 below the side plates 5, while forming at the same time part of the structural frame of the separating grid one.

According to the two embodiments shown in the drawings and described herein, support 21 mentioned above is equipped with a suspension unit 25, one on each side of the separator unit 8. More specifically, the two suspension units 25 of the support 21 are located in a protected place on the outer faces 26 of the side plates 5 They look outward, away from the separator unit.

According to the embodiment illustrated in Figs 1 and 2, each suspension unit 25 comprises an elongated swing arm 27 extending in the longitudinal direction of the unit separator 8, essentially in parallel with and vertically separated of the mobile grid slats 10, as is clearly evident in Fig. 2. At the lower ends 28 of the swing arm, submerged in running water 2, pivots 30 connect pivotally the oscillating arms 27 to the lower end 29, also submerged in water 2, of the separating grid 1.

In addition, according to the embodiment of Figs 1 and 2, each suspension unit 25 comprises two oscillating connectors 31 and 32. These extend in essentially separate relationship and parallel to each other, essentially forming a right angle with the swing arm 27 and with mobile grid slats 10. In one of its ends, the upper ends 33, articulate the two swing connectors 31, 32 to swing arm 27 at one point intermediate between its lower end 28 and its upper end 34, and at the opposite lower ends of the oscillating connector 35, the pivots 36 and 37 connect the connectors to the mobile grid slats 10.

The two suspension units 25 of bracket 21 consisting of oscillating arms 27 and connectors oscillators 31, 32 and their associated pivots 30, 36, 37, are made of a material suitable for its proposed use, preferably stainless steel or similar, like the rest of the separator unit 1. Pivots 30, 36 and 37 may consist of in sliding and / or bearing supports of a configuration adequate and may be permanently lubricated and / or encapsulated to resist the environmental conditions of water 2.

More specifically, one of the connectors oscillators 31, 32, in this case the oscillating connector 32, is pivotally attached at one of its ends, the upper end 33, to the swing arm 27, essentially in the end zone upper 34 of the swing arm, and at its lower end 35 at 10 mobile grid slats essentially in the third zone bottom of the slats measured from the lower ends of the slats 14. The other oscillating connector 31 is pivotally connected in one of its ends, the upper end 33, to the swing arm 27, the junction point being essentially located in the middle zone between the upper and lower ends 28, 34 of said arm, while at its lower end 35 opposite said connector is pivotally attached to the mobile grid slats 10, essentially in the area of the lower ends thereof 14. The location of the interconnection pivots of the oscillating arms 27, the oscillating connectors 31, 32 and grid slats 10 defined more Above is just one of the possible examples and can naturally be modified

According to the embodiment shown, the two units of suspension 25 composed of oscillating arms 27 and oscillating connectors 31, 32 are directly interconnected or indirectly by means of two transverse mobile beams lower 23, on which movable grid slats are mounted 10 in the area of its lower part 19.

According to the second preferred embodiment illustrated in Fig. 3, each suspension unit 25 comprises three main components, which are a rod element 45, an element tubular 47 and transmission means 47.

Rod element 45 is configured preferably as a cylindrical piston rod whose end lower 48, which is submerged in running water 2, is pivotally connected to the lower end 29 of the separator grid 1 by means of a pivot 49.

To adapt to the configuration of the element rod 45, the tubular element 46 preferably is in the form of bushing installed on the piston rod for movement concentric sliding on it, in any suitable way that allow to move longitudinally back and forth along of the piston rod.

According to the embodiment of Figs. 1 and 2, the rod and tubular elements 45, 46, as well as the swing arm 27 extend in the longitudinal direction of the separator unit 8, see Fig. 3, essentially in parallel with the grid slats mobile 10 and separated above these.

The third main component of the unit suspension 25 according to Fig. 3, which are the transmission means 47, is fixedly connected between the tubular element 46 and the slats grid mobiles 10. More specifically, in this case the means of transmission 47 are essentially configured as a trapezoid vertically and extends essentially vertically and obliquely, let's say with an angle of 45-60º, on the one hand until the support unit formed by the rod and tubular elements 45, 46 and on the other hand to the mobile grid slats 10. The two opposite parallel sides 50, 51 of the transmission means 47 preferably they are fixedly secured to the tubular element 46 and the mobile grid slats 10 respectively, anyway suitable, such as welding, rivets, bolts, etc.

It should be appreciated that the shape and inclination of the transmission means 47 as described above, does not They are the only ones possible. The essential feature is that they work as a rigid transmission element and resistant to the moment between the support unit formed by the rod element and the element tubular 45, 46 and mobile grid slats 10.

Also according to the embodiment of Fig. 3, the components of the two suspension units 25 of the support 21 which consist of the rod element and the tubular element 45, 46 and in the transmission means 47 including its connection means associated, they are naturally made of a material that results suitable for your intended applications, preferably steel stainless or similar. The seals 49 in this case can also be made of sliding and / or bearing supports, and the support units formed by the rod element and the element tubular 45, 46 may be configured similarly or as linear ball bearings, etc. Regardless of the type of support, the bearings can be of a type permanently lubricated and / or encapsulated to withstand conditions environmental water flow 2.

To produce the movement of the slats of mobile grid 10, the drive unit 16 comprises a motor electrically operated 38, which is installed in the structure of the frame of the separating grid 1, in its upper part. About him drive motor 38 is mounted a gearbox 39 that it has two coaxial drive shafts 40 and that rotate in the direction opposite. Drive shafts are installed rotationally in the supports 41 of the side plates 5 and extend through of said plates. Externally to the side plates 5 each axis of drive 40 acts respectively on its one or both identical eccentric mechanisms 41. Each eccentric mechanism 41 is attached to a configuration transmission means 42 essentially triangular made of sheets of metal or other material suitable, preferably stainless steel or the like. At the same time, the transmission means 42 are connected to the two beams upper mobile cross-sections 22 on which the mobile grid slats 10 in the area of its upper part 18.

In this way the grid slats are activated mobile and in turn these grid slats move the two suspension units 25. This is how transport is achieved desired passage of solid particles and objects 4 to the drain 17.

In the present specification, e illustrated two particularly preferred embodiments in the present. However, the invention should not be contemplated in a manner restricted to these embodiments, but it could be modified from many ways within the scope of the claimed protection, as defined in the appended claims.

Claims (10)

1. A separating grid for the collection and disposal of solid particles and objects (4) present in the running water (2), said grid being equipped with a separating unit (8) disposed during use in an inclined position obliquely towards up, back in the direction of the flow (A) of the water and comprising alternate fixed and mobile grid slats (9 and 10 respectively), configured with means for collection and disposal (11) at those edges of the slats of grid that look in the direction of the flow (A) of the water (2), said moving grid slats (10) being connected to a drive unit (16) in the area of its upper part (18) and arranged to be operated by said unit to extract solid particles and objects (4) from the water (2) step by step and transport them along the fixed grid slats (9), to a drain (17), characterized in that the grid slats mobile (10) is they are suspended in the area of their lower part (19) from a support (21) of the separating grid arranged in the lower part (20) of the separating grid (1), said support comprising suspension units (25) to both sides of the separator unit (8). 2. A separating grid according to claim 1, in which each separating unit (25) comprises on the one hand a swing arm (27) whose lower end (28) is articulated to the lower end (29) of the separating grid (1), and on the other two oscillating connectors (31, 32), one of whose ends (33) is articulated to the swing arm (27) at an intermediate point between the upper and lower ends (28, 34) of said arm whose ends opposites (35) are articulated to the mobile grid slats (10) 3. A separating grid according to claim 2, in which the swing arm (27) extends substantially in parallel with and separated above the mobile grid slats (10), and in which the oscillating connectors (31, 32) extend substantially in relation to parallels with each other and substantially forming a right angle with the swing arm (27) and with mobile grid slats (10). 4. A separating grid according to claims 2 and 3, wherein one (32) of the connectors oscillating is pivotally attached at said one (33) of its ends to the swing arm (27) substantially in the end zone upper swing arm (34), and at said opposite end (35) to the mobile grid slats (10) substantially in the area of the lower third of the slats measured from the lower ends of the slats (14), and in which the other oscillating connector (31) is pivotally attached at said end one (33) to the swing arm (27) at a point located substantially in the middle zone between upper and lower ends (28, 34) of said arm, while at said opposite lower end (35) said connector is attached pivotally to the mobile grid slats (10), substantially in the area of the lower ends (14) thereof. 5. A separating grid according to claim 1, in which each separating unit (25) comprises an element stem (45), whose lower end (48) is articulated to the end bottom (29) of the separating grid (1), as well as an element tubular (46) that is mounted on the rod element (45) for a longitudinal sliding movement on it, and means of transmission (47), which are fixedly installed between the tubular element (46) and mobile grid slats (10). 6. A separating grid according to claim 5, in which the rod and tubular elements (45, 46) extend substantially in parallel with the mobile grid slats (10) and they are separated above said slats, being configured said rod element (45) as a piston rod and the element tubular (46) as a bushing concentrically installed on the piston rod for a sliding movement on it. 7. A separating grid according to claims 5 and 6, wherein said transmission means (47) they are substantially configured as a vertical trapezoid and are extends obliquely in relation to one side with the element stem and tubular element (45 and 46, respectively) and by the another with mobile grid slats (10), said means being transmission (47) fixedly secured to the tubular element (46) and to the mobile grid slats (10) on their opposite parallel sides (50, 51). 8. A separating grid according to any of the previous claims, wherein said grid slats mobiles (10) are installed in the area of its upper part (18) of removable shape on at least one upper mobile transverse beam (22) and in the area of its lower part (19) are installed so removable on at least one lower mobile transverse beam (23), and in which the suspension units (25) are interconnected by means of the lower moving beam or transverse beams (23). 9. A separating grid according to any of the previous claims, wherein the drive unit (16) drives at least one eccentric mechanism (41), said eccentric mechanism (41) arranged to act on the slats of mobile grid (10) by means of transmission means (42) connected to the upper moving beam or transverse beams (22), said mobile grid slats (10) being arranged to directly put the suspension units into motion (25), all to produce the collection and disposal step by step desired solid particles and objects (4) and their transport to the drain (17). 10. A separating grid according to any of the preceding claims, comprising a structural framework including two side plates (5) separated from each other, substantially parallel, which receive said separator unit (8) between them, the suspension units (25) being located in a protected position on the faces (26) of the side plates (5) looking out of the separator unit (8).