Mechanical grid

FIELD: construction.

SUBSTANCE: mechanical grid comprises a trash stack with a row of parallel bars on grid beams, scrapers with a row of parallel teeth on beams of scrapers for cleaning of the grid. The trash stack and scrapers are made as demountable. The grid beam is equipped with a detachable angle. Eyes of grid bars may be inserted into through holes of the grid beam. The protruding part of eyes from through holes in the grid beam is equipped with slots for insertion of the upper part of one of angle shelves into them, and the other shelf of the angle is fixed by a bolt joint to one of the shelves of the grid beam channel to form a lock joint.

EFFECT: unification of structure elements for commercial production of a standard device, faster assembly and adjustment of a device, simplified repair of a grid and scrapers, increased reliability of device operation.

3 cl, 6 dwg

 

The improvement relates to a mechanical litter retaining the grids and may find use in the purification of wastewater from a large litter.

A device containing litter retaining bars with a number of parallel bars on the beams of the lattice, scrapers with a number of parallel teeth on the beams scrapers to clean the lattice (see the description of the author's certificate of the USSR No. 71472, publ. in BI No. 7 in 1948).

In the known device scrapers to clean the grille and grille nerazborny made in the form of beams welded to beams rods. The known device it is difficult to repair in case of breakdown of the elements of the lattice and/or scrapers.

The known device (see patent BY 5485, CL E03F 5/14, 2003), containing collapsible grabline (scrapers) and modular lattice (see patent EA 201101628, CL E03F 5/14, 2012).

In the descriptions of the known devices there is no indication that grabline (scrapers) and the grille is made in the form locking connection.

Furthermore, in the folding grilles above patents the ends of the rods are rigidly supported in the frame. For example, in 14 of the claim of the patent EA 201101628 agreed that in the known device "strip of filter fabric (grids) fixed in the upper and lower parts, i.e. strips or rods have ends rigid attachment, which makes the disassembly of the lattice and narrows the possibilities of the filter is about paintings (lattice) when working in the liquid stream.

The purpose of this improvement is the unification of structural elements for the industrial manufacture of standard devices, faster installation and commissioning of the device, simplifying repair lattice and scrapers, in operation, through fast replacement of individual elements of the device, improving the reliability of the device by reducing the likelihood of jamming of the teeth adjacent to the openings of the lattice, reducing the use of manual labor cleaning and repair of the device, improving the SC lattice and wastewater from large inclusions.

The problem is solved in that the mechanical lattice containing litter retaining bars with a number of parallel bars on the beams of the lattice, scrapers with a number of parallel teeth on the beams scrapers for cleaning grills, litter retaining the bars and scrapers is movable, characterized in that the beam of the grating is provided with a detachable area, ears bars of the grating are able to be inserted through holes in the beams of the lattice, the protruding portion of the ears of the through holes in the beam lattice keyed to insert them in the upper part of one of the shelves of the area, and the other shelf area secured by bolting to one of the shelves of the channel beams of the lattice with the formation of the castle connection.

The technical result is achieved is nificate parts of the lattice (gully grating, bars with the slots in the ears, detachable area), i.e. each type of part has the same design that allows you to jump to the industrial mode of production grid with its Assembly on the conveyor. Accelerates and improves the production and repair of the lattice in terms of its production and operation.

Teeth scrapers provided with grooves into which has the ability to enter placket fastening teeth, beam scraper made in the form of bent sheet material channel with uniformly arranged in two oppositely located shelves grooves, through which are able to be inserted into the beam scraper his teeth, so that the grooves of the teeth protrude from the channel beam scraper with education together with the strap fastening of teeth detachable locking connection, which is located outside one of the shelves of the channel beam scraper.

Interlocking connection of the grid and the rotor (scrapers) are provided with clearances (gaps), which improves the quality of wastewater treatment due to the effect of self-cleaning tool joints hardness salts and possible vibration bars in the grille.

The technical result is achieved unification of parts scraper (beam scraper, the scraper teeth, strap fastening teeth), i.e. each type of part has the same design that allows you to jump to the industrial way of production is odstv device with its Assembly on the conveyor. Improves the maintainability of the scraper in terms of its operation, is achieved by unifying design elements for the industrial manufacture of standard devices, faster installation and commissioning of the device, simplifying repair lattice and scrapers, in operation, through fast replacement of individual elements collapsible lattice scrapers, improved reliability of the device due to the presence of backlash in the castle compounds lattice and pigs is achieved by reducing the likelihood of jamming of the teeth adjacent to the openings of the lattice, reduced use of manual labor for cleaning and repairs. The presence of backlash in the lock connection device allows the bars of the grating and Skrepka vibrate when immersed in the wastewater stream that allows the lattice and the tines self hardness salts, which increases effektivnosti wastewater treatment.

In addition, improved reliability of the device due to the presence of backlash in collapsible lattice and pigs is achieved by reducing the likelihood of jamming of the teeth adjacent to the openings of the lattice.

The device represented in the drawings.

Figure 1. View of the grill in the back.

Figure 2. Cross section a-a in figure 1.

Figure 3. View of the grill in the back. An alternative option.

Figure 4. Section b-B in figure 3. An alternative option.

<> Figure 5. A fragment of the pig on the grill.

6. The scraper fragment.

The list of symbols on drawings

1. The grille.

2. Rod lattice 1.

3. Gully grating 1.

4. Scraper.

5. Tooth scraper 4.

6. Beam scraper 4.

7. The eye of the rod 2.

8. Shelf channel beams 3 grid 1.

9. Shelf channel beams 3 grid 1.

10. A through hole.

11. The rib.

12. The routing hole.

13. Stud.

14. The threaded end of the stud 13.

15. Lock nut.

16. Hole grid 1.

17. The groove of the tooth 5 of the scraper 4.

18. Strap of fastening of the teeth 5.

19. Shelf channel beams 6 of the scraper 4.

20. Shelf channel beams 6 of the scraper 4.

21. The notch in the shelf channel beams 6 of the scraper 4.

22. The notch in the shelf channel beams 6 of the scraper 4.

23. Shelf collecting litter.

24. Chain.

25. Removable area.

26. The notch in the lug 7.

27. Bolt connection.

The device contains litter retaining bars 1 (hereinafter, the lattice 1) with a number of parallel rods 2 on the beams 3 grid 1, scrapers 4 with a number of parallel teeth 5 on the beams 6 scrapers 4 for cleaning Prozorov between the rods 2 lattice 1.

The teeth 5 scrapers 4 have the opportunity when peremeshenie scrapers along the grid during its treatment from Sora to enter the openings, leaving Prozorov and move in the openings between the rods 2 lattice 1.

Grid 1 with a number of parallel rods 2 on BA is under 3 grid 1 and scrapers 4 with a number of parallel teeth 5 on the beams 6 scraper 4 is movable.

The rods 2 lattice 1 is made from a strip of rectangular cross-section.

The rods 2 lattice 1 is equipped with lugs 7, which are welded to the strip rod 2 on one side of the smaller its width one eyelet 7 on each of the ends of the rods 2. The rods 2 and the ears 7 are made of stainless steel. Each beam 3 grid 1 is made of bent sheet material of stainless steel in the form of a channel.

Along the channel beams 3 grid 1 evenly spaced between its oppositely spaced shelves 8, 9 through holes 10, to insert in their ears bars of the lattice. Through holes 10 in the beams 3 repeat the form of rods 2 lattice 1.

In the assembled lattice 1 ears 7 2 bars protrude from the through holes 10 into the channel of each beam 3 grid 1 between welded inside the channel ribs 11 rigidity of the guide holes 12, which are aligned with the holes in the ears 7 bars 2 lattice 1 and through which is inserted a removable pin 13 with threaded ends 14, which protrude from the guide hole 12 of the rib 11 of rigidity to accommodate for the ribs 11 of the lock nuts 15 on the threaded ends of the studs 13, intended for maintaining the pins 13 in a state of stress relative to the stiffening ribs 11 and retain the pins 13 of the lugs 7 bars 2 education together with the beam 3 grid 1 detachable locking connection is Oia.

At the ends of the beams 3 grid 1 has a hole 16 of the mounting beam 3 grid 1 to the reference frame (frame not shown).

The teeth 5 of the scraper 4 is provided with grooves 17, which has the ability to enter Planck 18 mounting teeth 5 of the scraper 4.

Beam 6 of the scraper 4 is made in the form of a bent sheet material channel with uniformly arranged in two oppositely located shelves 19, 20 of the slots 21, 22, through which are able to be inserted into the beam scraper 6 4 teeth 5, so that the grooves 17 of the teeth 5 protrude from the channel beams 6 of the scraper 4 education together with the strap 18 mounting teeth 5 detachable locking connection, which is located outside of the channel beams 6 of the scraper 4. Strap 18 of attachment of the teeth 5 is secured by screws to the channel beams 6 of the scraper 4.

The teeth 5 of each scraper 4 front grille 1 is covered by a shelf 23 collection Sora attached to two oppositely situated shelves 19, 20 channel beams 6 of the scraper 4. The free ends of the teeth 5 are from under the shelf 23 collecting litter in the openings between the rods 2 lattice 1. The presence of shelves 23 eliminates the clogging of the teeth 5 of the scraper 4 litter in front of the grate 1. Off the shelf 23 collecting litter and with the free ends of the teeth 5 with automatic dumper (not shown) the litter is removed with scrapers 4.

At the ends of the beams 6 scrapers there are 4 attachment points is x to the endless chains 24, who are able to lead scrapers 4 in movement parallel along the rods 2 arrays 1.

The chains 24 are driven by leading asterisks, which are connected via the drive shaft and worm gear with an electric motor.

In an alternative embodiment, beam 3 grid 1 is provided with a detachable area 25, the ears 7 bars 2 grating 1 are able to be inserted into the through holes 10 of the beam 3 grid 1, the protruding portion of the ears 7 of the through holes 10 in beam 3 grid 1 is equipped with grooves 26 to insert them in the upper part of one of the shelves of area 25, and the other shelf area 25 is fixed by means of bolt connection 27 to one of the shelves of the channel beams 3 grid 1 with the formation of the interlocking connection.

The device operates as follows.

Collapsible bars 1 are collected in the following sequence. In the through hole 10 is inserted from the outside of the beam 3 ears 7 bars 2 (see Fig.1-2). Further inside the channel beams 3 guide pin 13 in the guide hole 12 in one of the ribs 11 and further through the ears 7 bars 2 and the second guiding hole 12 of the second ribs 11. The stud 10 is set so that its threaded end 14 protrudes from the holes 12 on the outside of the ribs 11. Both the threaded end of the stud put lock nuts 15 and tighten them, while the stud 13 is held by the ears 7 bars 2 grating 1 and grating 1 is collected.

Disassembly reshetki is carried out in reverse order. Unscrew the nut 15 with the stud 13 and pull it out of the guide hole 12 of the ribs 11 and the holes of the lugs 7, after which the rods 13 may be pulled out together with the lugs 7 of the beams 3 of the grating 1 and grating 1 is disassembled. In the assembled state of the stud 13, as pins that do not allow you to pull ears for 7 bars 2 lattice 1. The serial number of evenly spaced through holes 10 in beam 3 distancionarie ears 7 bars 2 grating 1 according to the length of the beam 3 grid 1. The bars 1 are fixed to the frame (frame not shown in the drawings) through the holes 16, which are located at the ends of the beams 3 grid 1.

Collapsible scraper 4 is collected in the following sequence. Through the slots 21, 22 in the shelves 19, 20 channel beams 6 of the scraper 4 alternately insert the teeth 5 of the scraper 4 so that the grooves 17 in the teeth 5 were on one side of the beam 6 of the scraper 4. Later in the grooves 17 of the teeth 5 insert the bar 18 of the mounting of the teeth 5, and the bar 18 is fixed by screws to the beam 6 of the scraper 4 and the scraper 4 is assembled. The serial number of the slots in the beam scraper distancionarie teeth along the length of the beam scraper. Scrapers attached to the chains 24 (see figure 3) so that the teeth fell into the openings of the lattice 1 between its rods 2.

Disassembly of the scraper 4 is carried out in reverse order. Remove the bar 18 mounting and pull out of the beams 6 teeth 5 and the bucket 4 is parsed.

Alternatively, the grating 1 FDS is given in the following sequence: through hole 10 outside of both beams 3 insert the tabs 7 bars 2, so that the slots 26 in the ears extend beyond the through holes 10 of the beam 3 grid 1, then in the grooves 26 of the lugs 7 on the rods 2 lattice 1 insert the top part of one of the shelves of area 25, and the second shelf area 25 are fixed by bolts 27 to one of the shelves of the channel beams 3 grid 1 and grid 1 was collected. Disassembly of the grating 1 is carried out in reverse order, and specifically, remove the corners 25 of the beams 3 grid 1, then it is possible to remove the ears 7 bars 2 of the through holes 10 of the beams 3 and the grating 1 is parsed.

Achieved the unification of the parts of the grating 1 and the teeth 5 scrapers 4, i.e. each type of part has the same design that allows you to jump to the industrial method of production of the device with its Assembly on the Assembly line.

Improves maintainability scraper 4 in operation.

Achieved the unification of the design elements for the industrial manufacture of standard devices, faster installation and commissioning of the device, simplifying repair lattice and scrapers, in operation, through fast replacement of individual elements collapsible lattice 1 and scrapers 4, is achieved by increasing the reliability of the device.

Due to the presence of gaps (gaps) in the collapsible locking connections grating 1 and the teeth 5 of the scraper 4 is achieved by reducing the likelihood of jamming of the teeth 5 scrapers 4 in the openings of the sieves and 1, reduced use of manual labor cleaning and repair of the device.

In addition, the presence of clearances (gaps) between the lugs 7 and the holes 10 of the beams 3 allows the rods 2 lattice 1 to reside freely in an interlock that when the lattice 1 wastewater stream allows the rods 2 lattice 1 to vibrate within the holes 10 of the beams 3, which slows down the mud bars salts of rigidity wastewater and extends uninterrupted period of operation of the mechanical grating 1 wastewater from large inclusions.

The frequency of the vibrations of rods 2 depends on the value of clearances, sizes of rods, the flow regime of the flow of wastewater through the openings between the rods 2 lattice 1.

The flow regime of the flow of wastewater through the bars 1 may be from laminar to turbulent.

When vibration of rods 2 lattice 1 is observed, the self-cleaning rods 2 lattice 1 when it operates in the wastewater stream, which increases the efficiency of the grating 1 with wastewater from a large litter.

1. Mechanical grid containing litter retaining bars with a number of parallel bars on the beams of the lattice, scrapers with a number of parallel teeth on the beams scrapers for cleaning grills, litter retaining the bars and scrapers is movable, characterized in that the beam of the grating is provided with a detachable area, ears prod is in the lattice have the opportunity be inserted through holes in the beams of the lattice, the protruding portion of the ears of the through holes in the beam lattice keyed to insert them in the upper part of one of the shelves of the area, and the other shelf area secured by bolting to one of the shelves of the channel beams of the lattice with the formation of the interlocking connection.

2. Mechanical grating according to claim 1, characterized in that the teeth scrapers provided with grooves into which has the ability to enter placket fastening teeth, beam scraper made in the form of bent sheet material channel with uniformly arranged in two oppositely located shelves grooves, through which are able to be inserted into the beam scraper his teeth, so that the grooves of the teeth protrude from the channel beam scraper with education together with the strap fastening of teeth detachable locking connection, which is located outside one of the shelves of the channel beam scraper.

3. Mechanical grating according to claims 1 and 2, characterized in that the interlocking connection of the grid and the rotor (scrapers) with gaps (clearances).



 

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4 cl, 4 dwg

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to devices for taking water from surface sources and it is designed to provide protection of diversion facilities from slush ice. Proposed device contains three-dimensional filtering cassettes installed in guide of slot structure of intake port of submerged water intake head of diversion facility consisting of metal rectangular frame with filtering plastic tubes tightly fitted in slots on inner side. Plastic tubes are made truncated along their generatrices on secant line of base of corresponding filtering plastic tube. Chord of secant line of base of filtering plastic tubes is either equal to or non- equal to outer diameter of tubes, and dimensions of metal rectangular frame are multiple of said chord. Truncated filtering plastic tubes can be installed in metal rectangular frame in slots on inner side, either vertically or horizontally, being interconnected by hydraulic insulating material.

EFFECT: provision of effecting protection of diversion facilities from slush ice.

4 cl, 2 dwg

The invention relates to the field of hydraulic engineering and can be used for protection of waterworks and pumping stations from plant residues and floating debris

The invention relates to a device for producing or collecting water from surface water sources to protect water intakes from falling sludge

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to devices for taking water from surface sources and it is designed to provide protection of diversion facilities from slush ice. Proposed device contains three-dimensional filtering cassettes installed in guide of slot structure of intake port of submerged water intake head of diversion facility consisting of metal rectangular frame with filtering plastic tubes tightly fitted in slots on inner side. Plastic tubes are made truncated along their generatrices on secant line of base of corresponding filtering plastic tube. Chord of secant line of base of filtering plastic tubes is either equal to or non- equal to outer diameter of tubes, and dimensions of metal rectangular frame are multiple of said chord. Truncated filtering plastic tubes can be installed in metal rectangular frame in slots on inner side, either vertically or horizontally, being interconnected by hydraulic insulating material.

EFFECT: provision of effecting protection of diversion facilities from slush ice.

4 cl, 2 dwg

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