CA2055456A1 - Machine with mobile grid for the elimination from channels and similar of solid products transported by a liquid flow - Google Patents
Machine with mobile grid for the elimination from channels and similar of solid products transported by a liquid flowInfo
- Publication number
- CA2055456A1 CA2055456A1 CA 2055456 CA2055456A CA2055456A1 CA 2055456 A1 CA2055456 A1 CA 2055456A1 CA 2055456 CA2055456 CA 2055456 CA 2055456 A CA2055456 A CA 2055456A CA 2055456 A1 CA2055456 A1 CA 2055456A1
- Authority
- CA
- Canada
- Prior art keywords
- machine
- elements
- mobile
- group
- fixed
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
- B01D33/0346—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements
- B01D33/0353—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements self-supporting
- B01D33/0361—Bar screens
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
- E02B8/026—Cleaning devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Extraction Or Liquid Replacement (AREA)
- Treatment Of Fiber Materials (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Machine (1) with a mobile grid for the elimination of solid products, transported by a liquid flow, from channels and similar is of a type comprising a first mobile group (2) and a second fixed group (3) of elements in the form of steps, said groups (2, 3) being enclosed between a pair (4, 4) of lateral plates connected by upper (5) and lower (5') crossbeams and the elements of the mobile group being joined together by crossbeams (6) which are in turn fixed to longitudinal members (7, 7') and is essentially characterised in that the said mobile group is connected to suitable driving means (8-11) by a system of arms situated externally on said whole unit constituting said second fixed group, and the movement is transferred to said first mobile group by a series of pairs of pistons (18, 19) respectively situated substantially vertically and horizontally.
Machine (1) with a mobile grid for the elimination of solid products, transported by a liquid flow, from channels and similar is of a type comprising a first mobile group (2) and a second fixed group (3) of elements in the form of steps, said groups (2, 3) being enclosed between a pair (4, 4) of lateral plates connected by upper (5) and lower (5') crossbeams and the elements of the mobile group being joined together by crossbeams (6) which are in turn fixed to longitudinal members (7, 7') and is essentially characterised in that the said mobile group is connected to suitable driving means (8-11) by a system of arms situated externally on said whole unit constituting said second fixed group, and the movement is transferred to said first mobile group by a series of pairs of pistons (18, 19) respectively situated substantially vertically and horizontally.
Description
2 o r~
MACHINE WITH MOBILE GRID FOR THE ELIMINATION FROM CHANN_LS
AND SIMILAR OF SOLID PRODUCTS TRANSPORTED BY A LIQUID FLOW
DESCRIPTION
This invention concerns a macnine with a mocile grid 5 for the eiimination of solid products, transported by a liquid flow, from channels and similar, More particularly this invention refers to a machine o;
the abovementioned type formed so as to realise, by means of a mobile grid combined with a fixed grid, a transport system adapted to withdraw the solid product from the flow of liquid carrying it and discharge it at a higher level from where the said product is removed.
One such lifting and transPort system has been known for some time, but the arrangements which realise it give rise to various difficulties.
One of the difficulties of these known arrangements is the poor rigidity of the supporting structure due essentially to the fact that the restraining walls are mobile, Since the mobile walls must be sufficiently light and unencumbering so as not to hinder the motion, these are not able to contribute sufficiently to the achievement of a good structural rigidness, being, furthermore, subject to hydrodynamic thrust .
2~55~.~6 and viDrations wnich restrike the mobile group wai,s anb the said connected walls. One sucn difficulty is particularly notab e in heavy uses of the machines depending generally on the high cc tent of solid products in the flow, on the product type, on the pipe configurltion and on other factors well known to an expert in the art.
Another difficulty met in the known technology is tne difficulty of realising reliable machines with a hign discharge height this being due to the abovementionec difficulty regarding the poor rigidity of the supporting structure.
A further difficulty, also due to the poor rigidity of the supporting structure, consists of the width limitation and therefore the limitation of the machine's use.
Furthermore this the use limitation of conventional machines is due to the fact that conventional machines are equipped with driving means of the mobile group, that is electric motors which cannot be immersed in liquid and therefore such m.achines cannot be used in channels or similar, in which the level of the liquid is subject to considerable changes in level.
In the conventional machines it is, furthermore, necessary to provide a means of sealing with the supporting structure, such means is subject to rapid wear and tear, the 2S possibility of clogging and leaking and therefore reduction 2 ~ 6 3 _ in the machine's performance.
The object of this invent;on is to produce a macnine of the abovementioned type which substantially eliminates the difficulties encountered with conventional machines.
This and other objects, characteristics and advantages are evident to a person skilled in the art from the following detailed description and from the appended claims.
The mobile grid machine for the elimination of solid products transported by a liauid flow from channels and similar according to the presC invention is characterised by the features indicated in the characterising par ~f claim 1, further characteristics are indicated in the dependent claims from 2 to 12.
A preferred form of embodiment of the machine is illustrated - only exemplifying but not limiting - in the figures of the attached sheets of drawings, where:
- Figure 1 is a perspective view of the machine as a whole;
- Figure 2 is a perspective view of the fixed group only;
- Figure 3 is a perspective view of the mobile group only with parts removed for greater clarity;
- Figure 4 is a perspective view of an element of the mobile group;
- Figure 5 is another simplified perspective view of the machine as a whole;
- Figure 6 is a perspective view, with parts removed for 2 ~ 6 greater clarity, of an element or the mobile group an~ of tne driving means; and - Figure 7 illustrates the various positions of the mobile group during a movement cycle.
With reference to the above figures, the machine indicated generally in l as a whole - is of the type comprising conventionally a first mobile group 2 and a second fixed group 3 of elements formed as steps so as to permit, as a consequence of the movement of the mobile group, the raising and transport from one step to the next in the sieved material.
hachine 1, as is known, is destined to be positioned in any duct and to remove the solid material transported by the liquid flowing in the duct from said liquid.
The elements of the fixed group are joined to a supporting structure essentially composed of two lateral plates 4,4' joined by upper crossbeams S and lower crossbeams S'. The said lateral plates 4,4' have a profile which is variab1e as a function of the desired inclination and dimension of the machine.
Elements 2 of the mobile group are joined together by crossbeams 6 which are in turn fixed to longitudinal members 7, 7' to which the motion is transferred by arms 8,8' on the exterior of the plates 4,4'. As shown by the figure, the arms 8 are made up of two elements joined together by an s oscillating joint 9. while the ar~s 8' are also const,tuteri by two elements which are~bolted together.
The arms 8.8' are joined to cams 10. which receive the motion from a driving unit 11.
The particular two-element form of the arms 8,8' allows easy removal of the mobile group and relative elements 2 from the body of the machine 1 maintaining the position of the whole driving mechanism unchanged. The advantage of not having to interfere with the driving mechanism togethe wi,h the use of reference keys, conventional in itself, on all the particulars of the motion transmission avoids problems of phase displacement between the two groups and greatly reduces the servicing times for repairs and/or maintenance.
With reference to Fig. 6, the movement of the mobile group 2 is obtained by means of pairs of pistons lo and 19, situated substantially vertically and horizontally or slightly inclined, respectively, hinged on inferior crossbeams 5' and of which the piston rods 18' and 19' are hinged to longitudinal members 7,7'. For a reguiar movement of the mobile group there are (as in the illustrated example) two pair of pistons 18 and 19 positioned next to the lateral plate 4 and two pairs positioned next to lateral plate 4'.
The pistons 18 and 19 are of hermetically sealed type and so these, controlled by a suitable control box 20, can operate even when immersed in liquid thus machine 1, 2 .~ r3 according to the invention, can be used in channels, or similar, in which the level of liquid varies considerably.
The movement of the mobile group 2 is outlined in Fig.
7:
- In the position 0(4) - the mobile group 2 and the fixed group 3 are perfectly aligned, in phase - the piston rods 18 are in and the piston rods 19' are out (with respect to the relative pistons);
- In position 1 - mobile group 2 raised, the piston rods 18' are moved out and the piston rods 19' remain out;
- In position 2 - mobile group 2 moved forward, the piston rods 18' are out and the piston rods 19' remain out;
- In position 3 - mobile group 2 lowered, the piston rods 18' are moved in and the piston rods 19' remain out;
- In position 4 (0) - mobile group 2 moved backwards, the piston rods 18' remain in and the piston rods are moved out;
- after this, the cycle repeats itself as described above.
As shown i`n detail in Fig. 4, each element 2 has the points 12 of the steps curved alternatively in opposite directions with respect to the plane of the said element, said curved parts having the function of breaking up any lumps and/or filaments of sieved material.
The mobile elements 2 and fixed elements 3 have the upper part at least from the last step equipped with a boss 13 destined to prevent the sieved material from falling down _ 7 _ 2~5~ ~ 5 6 again.
As results from the above, tne structure of tne machine 1 gets round all the difficulties encountered in the Known technology.
The use of fixed lateral plates 4,4' allows the realisation rf machines which are robust and thus insensitive to hydrodynamic thrust and vibra~ions, of increaser neig,ht and width according to necessity and without reauirinS tne use of sealing means.
The hermetically sealed piston system, as alreaay said, can operate even when immersed allowing the machine to be used in any type of channel, or similar, and finally allows a remar~able energetic saving with respect to existing s~stems.
MACHINE WITH MOBILE GRID FOR THE ELIMINATION FROM CHANN_LS
AND SIMILAR OF SOLID PRODUCTS TRANSPORTED BY A LIQUID FLOW
DESCRIPTION
This invention concerns a macnine with a mocile grid 5 for the eiimination of solid products, transported by a liquid flow, from channels and similar, More particularly this invention refers to a machine o;
the abovementioned type formed so as to realise, by means of a mobile grid combined with a fixed grid, a transport system adapted to withdraw the solid product from the flow of liquid carrying it and discharge it at a higher level from where the said product is removed.
One such lifting and transPort system has been known for some time, but the arrangements which realise it give rise to various difficulties.
One of the difficulties of these known arrangements is the poor rigidity of the supporting structure due essentially to the fact that the restraining walls are mobile, Since the mobile walls must be sufficiently light and unencumbering so as not to hinder the motion, these are not able to contribute sufficiently to the achievement of a good structural rigidness, being, furthermore, subject to hydrodynamic thrust .
2~55~.~6 and viDrations wnich restrike the mobile group wai,s anb the said connected walls. One sucn difficulty is particularly notab e in heavy uses of the machines depending generally on the high cc tent of solid products in the flow, on the product type, on the pipe configurltion and on other factors well known to an expert in the art.
Another difficulty met in the known technology is tne difficulty of realising reliable machines with a hign discharge height this being due to the abovementionec difficulty regarding the poor rigidity of the supporting structure.
A further difficulty, also due to the poor rigidity of the supporting structure, consists of the width limitation and therefore the limitation of the machine's use.
Furthermore this the use limitation of conventional machines is due to the fact that conventional machines are equipped with driving means of the mobile group, that is electric motors which cannot be immersed in liquid and therefore such m.achines cannot be used in channels or similar, in which the level of the liquid is subject to considerable changes in level.
In the conventional machines it is, furthermore, necessary to provide a means of sealing with the supporting structure, such means is subject to rapid wear and tear, the 2S possibility of clogging and leaking and therefore reduction 2 ~ 6 3 _ in the machine's performance.
The object of this invent;on is to produce a macnine of the abovementioned type which substantially eliminates the difficulties encountered with conventional machines.
This and other objects, characteristics and advantages are evident to a person skilled in the art from the following detailed description and from the appended claims.
The mobile grid machine for the elimination of solid products transported by a liauid flow from channels and similar according to the presC invention is characterised by the features indicated in the characterising par ~f claim 1, further characteristics are indicated in the dependent claims from 2 to 12.
A preferred form of embodiment of the machine is illustrated - only exemplifying but not limiting - in the figures of the attached sheets of drawings, where:
- Figure 1 is a perspective view of the machine as a whole;
- Figure 2 is a perspective view of the fixed group only;
- Figure 3 is a perspective view of the mobile group only with parts removed for greater clarity;
- Figure 4 is a perspective view of an element of the mobile group;
- Figure 5 is another simplified perspective view of the machine as a whole;
- Figure 6 is a perspective view, with parts removed for 2 ~ 6 greater clarity, of an element or the mobile group an~ of tne driving means; and - Figure 7 illustrates the various positions of the mobile group during a movement cycle.
With reference to the above figures, the machine indicated generally in l as a whole - is of the type comprising conventionally a first mobile group 2 and a second fixed group 3 of elements formed as steps so as to permit, as a consequence of the movement of the mobile group, the raising and transport from one step to the next in the sieved material.
hachine 1, as is known, is destined to be positioned in any duct and to remove the solid material transported by the liquid flowing in the duct from said liquid.
The elements of the fixed group are joined to a supporting structure essentially composed of two lateral plates 4,4' joined by upper crossbeams S and lower crossbeams S'. The said lateral plates 4,4' have a profile which is variab1e as a function of the desired inclination and dimension of the machine.
Elements 2 of the mobile group are joined together by crossbeams 6 which are in turn fixed to longitudinal members 7, 7' to which the motion is transferred by arms 8,8' on the exterior of the plates 4,4'. As shown by the figure, the arms 8 are made up of two elements joined together by an s oscillating joint 9. while the ar~s 8' are also const,tuteri by two elements which are~bolted together.
The arms 8.8' are joined to cams 10. which receive the motion from a driving unit 11.
The particular two-element form of the arms 8,8' allows easy removal of the mobile group and relative elements 2 from the body of the machine 1 maintaining the position of the whole driving mechanism unchanged. The advantage of not having to interfere with the driving mechanism togethe wi,h the use of reference keys, conventional in itself, on all the particulars of the motion transmission avoids problems of phase displacement between the two groups and greatly reduces the servicing times for repairs and/or maintenance.
With reference to Fig. 6, the movement of the mobile group 2 is obtained by means of pairs of pistons lo and 19, situated substantially vertically and horizontally or slightly inclined, respectively, hinged on inferior crossbeams 5' and of which the piston rods 18' and 19' are hinged to longitudinal members 7,7'. For a reguiar movement of the mobile group there are (as in the illustrated example) two pair of pistons 18 and 19 positioned next to the lateral plate 4 and two pairs positioned next to lateral plate 4'.
The pistons 18 and 19 are of hermetically sealed type and so these, controlled by a suitable control box 20, can operate even when immersed in liquid thus machine 1, 2 .~ r3 according to the invention, can be used in channels, or similar, in which the level of liquid varies considerably.
The movement of the mobile group 2 is outlined in Fig.
7:
- In the position 0(4) - the mobile group 2 and the fixed group 3 are perfectly aligned, in phase - the piston rods 18 are in and the piston rods 19' are out (with respect to the relative pistons);
- In position 1 - mobile group 2 raised, the piston rods 18' are moved out and the piston rods 19' remain out;
- In position 2 - mobile group 2 moved forward, the piston rods 18' are out and the piston rods 19' remain out;
- In position 3 - mobile group 2 lowered, the piston rods 18' are moved in and the piston rods 19' remain out;
- In position 4 (0) - mobile group 2 moved backwards, the piston rods 18' remain in and the piston rods are moved out;
- after this, the cycle repeats itself as described above.
As shown i`n detail in Fig. 4, each element 2 has the points 12 of the steps curved alternatively in opposite directions with respect to the plane of the said element, said curved parts having the function of breaking up any lumps and/or filaments of sieved material.
The mobile elements 2 and fixed elements 3 have the upper part at least from the last step equipped with a boss 13 destined to prevent the sieved material from falling down _ 7 _ 2~5~ ~ 5 6 again.
As results from the above, tne structure of tne machine 1 gets round all the difficulties encountered in the Known technology.
The use of fixed lateral plates 4,4' allows the realisation rf machines which are robust and thus insensitive to hydrodynamic thrust and vibra~ions, of increaser neig,ht and width according to necessity and without reauirinS tne use of sealing means.
The hermetically sealed piston system, as alreaay said, can operate even when immersed allowing the machine to be used in any type of channel, or similar, and finally allows a remar~able energetic saving with respect to existing s~stems.
Claims (12)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Machine with a mobile grid for the elimination of solid products transported by a liquid flow from channels and similar of the kind comprising a first mobile group (2) and a second fixed group (3) of elements in the form of steps, said groups (2,3) being enclosed between a pair (4,4) of lateral plates connected by upper (5) and lower (5') crossbeams and the elements of the mobile group are joined together by crossbeams (6) which are in turn fixed to longitudinal members (7, 7'), as well as driving means (8-11) of said first mobile group (2), characterised in that said second fixed group (3), constitutes a whole unit; that said mobile group (2) is connected to said driving means (8-11) by a system of arms (8,8') situated externally on said whole unit constituting said second fixed group (3); and the movement is transferred to said first mobile group (2) by a series of pairs of pistons (18,19) respectively situated substantially vertically and horizontally.
2) Machine as in claim 1, characterised in that said fixed group is constituted by a pair of lateral plates (4,4') joined to elements (3).
3) Machine as in claim 2, characterised in that the said lateral plates (4,4') have a lower profile substantially coinciding with the lower containing floor of the fixed elements.
4) Machine as in one or more of the previous claims, characterised in that the mobile group is connected to a driving means by arms (8,8') situated laterally and externally to said plates (4,4').
5) Machine as in claim 4, characterised in that the said arms (8,8') are constituted by two elements, the elements of the arms (8) being joined together advantageously by a swinging joint (9), or similar and the elements of the arms (8') being joined together by a bolt, or similar.
6) Machine as in claim 1, characterised in that the mobile elements (2) and/or fixed elements (3) have the points (12) of the steps curved alternately and in opposite directions with respect to the plane of the said element.
7) Machine as in claim 1, characterised in that the mobile and/or fixed elements (2,3) have the upper part at least of the last step equipped with one or more boss (13) able to prevent the possible falling down of the sieved material.
8) Machine according to claim 1, characterised in that the movement is transferred to the said first mobile group a series of pairs of pistons (18,19) respectively situated substantially vertically and horizontally.
9) Machine as in claim 8, characterised in that the said pistons are alternately hinged on lower crossbeams (5') and the piston rods (18',19') of said pistons are hinged to said longitudianl members (7,7').
10. Machine as in the preceding claims, characterised in that one series of pairs of pistons are positioned next to a lateral plate (4,4') and one equal series of pairs are positioned next to another lateral plate.
11. Machine as in the preceding claims, characterised in that the driving cycle of the piston rods (18',19') is controlled by a control box (20)
12. Machine, as in the preceding claims, characterised in that said pistons (18,19) are of hermetically sealed type.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19613A/90 | 1990-03-08 | ||
| IT19613A IT1239362B (en) | 1990-03-08 | 1990-03-08 | Filter for suspended solids carried by water flowing in channels |
| IT02146890A IT1245272B (en) | 1990-09-14 | 1990-09-14 | Machine with movable grating for eliminating from canals and the like solid products transported by a stream of liquid |
| IT21468A/90 | 1990-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2055456A1 true CA2055456A1 (en) | 1991-09-09 |
Family
ID=26327232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2055456 Abandoned CA2055456A1 (en) | 1990-03-08 | 1991-03-04 | Machine with mobile grid for the elimination from channels and similar of solid products transported by a liquid flow |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0471818A1 (en) |
| AU (1) | AU626753B2 (en) |
| CA (1) | CA2055456A1 (en) |
| WO (1) | WO1991014048A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19714089A1 (en) * | 1997-04-07 | 1998-10-08 | Manfred Huetten | Water treatment screen filter |
| DE19900817B4 (en) * | 1999-01-12 | 2004-04-15 | Hans Huber Ag Maschinen- Und Anlagenbau | Device for separating and removing material to be separated from a flowing liquid, in particular waste water |
| DE19920074C2 (en) * | 1999-05-03 | 2003-12-18 | Hans Huber Ag Masch & Anlagenb | Device for separating and conveying separated material out of a flowing liquid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1773576A (en) * | 1926-03-16 | 1930-08-19 | Dorr Co | Bar screen |
| SE448106B (en) * | 1985-05-24 | 1987-01-19 | Wallander Hydropress Co Ab | DEVICE FOR COLLECTION AND FEEDING OF STORED WATER BORN, SOLID PARTICLES |
| SE458862B (en) * | 1988-03-18 | 1989-05-16 | Ola Mileson | DEVICE FOR SEPARATION AND TRANSPORT OF MATERIALS |
| SE461284B (en) * | 1988-06-10 | 1990-01-29 | Wallander Hydropress Co Ab | DEVICE FOR CLEANING GLASSES |
-
1991
- 1991-03-04 WO PCT/EP1991/000404 patent/WO1991014048A1/en not_active Application Discontinuation
- 1991-03-04 CA CA 2055456 patent/CA2055456A1/en not_active Abandoned
- 1991-03-04 EP EP19910905548 patent/EP0471818A1/en not_active Withdrawn
- 1991-03-04 AU AU74416/91A patent/AU626753B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU7441691A (en) | 1991-10-10 |
| EP0471818A1 (en) | 1992-02-26 |
| AU626753B2 (en) | 1992-08-06 |
| WO1991014048A1 (en) | 1991-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |