CN217340211U

CN217340211U - Deflection-resistant adjustable mud discharge truss

Info

Publication number: CN217340211U
Application number: CN202123164287.6U
Authority: CN
Inventors: 谢江峡; 闫晓涛; 谢志诚; 桂芳; 赵凌; 刘璞祖; 杨斌
Original assignee: Lanzhou City Water Supply Group Co ltd
Current assignee: Lanzhou City Water Supply Group Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-09-02
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses an anti-deflection adjustable mud discharging truss, which comprises truss bodies arranged on two sides of a center pillar of a pre-settling tank, wherein each truss body comprises an upper chord beam and a lower chord beam, the upper chord beam and the lower chord beam are connected through a vertical stand column, a crossbeam support plate is welded in the middle of the upper chord beam beside the center pillar, the middle of the crossbeam support plate is connected with a rotating shaft fixed in the middle of the center pillar, two door-shaped supports are symmetrically welded on the crossbeam support plate, the upper crossbeam of each door-shaped support is respectively connected with the lower chord beam through two stay cables, and the bottom of the lower chord beam is connected with a mud scraping device; an outer rail is arranged at the top of the side wall of the sedimentation tank, and a driving trolley embedded on the outer rail is arranged on the bottom idler wheel arranged on the outer side of the upper chord beam. The utility model discloses a stay cable produces the pulling force to the last quarter girder between door type frame and last quarter girder to fixing, to prevent that the last quarter girder from warping down, the elasticity degree of stay cable can be adjusted through the rigging turnbuckle. The service time of the truss is prolonged, and the maintenance times are reduced.

Description

Deflection-resistant adjustable mud discharge truss

Technical Field

The utility model relates to a water treatment technology field, specific adjustable row's of anti-deflection mud truss that says so.

Background

The water is a life line of a city, safe and reliable tap water is a basic guarantee of our life, most of city tap water sources in China adopt surface water, the surface water often contains clay, sand, humus, calcium and magnesium salts, other salts, microorganisms and the like, the amount of impurities contained in the surface water is greatly different due to different influences of natural conditions and external factors, in areas with loose surface soil, in strong rainfall weather, the surface soil is loosened by rainwater and washed into rivers, the amount of sand and soil contained in the water body is greatly increased in a short time, and ultrahigh turbidity water is easily formed. The optimal process for treating the high-turbidity water is radial sedimentation tank sedimentation, a large amount of silt is removed, when the large amount of silt enters a production system along with the process, a flocculating agent is added, the silt enters the sedimentation tank after being uniformly mixed through high-speed rotation of a pump set, when the silt reaches a certain amount, a silt discharge truss needs to be opened for silt scraping, the diameter of the large-scale radial sedimentation tank for treating the high-turbidity water is 100 meters, the span from a track to a central pillar is 50 meters, the truss is a steel structure and has certain strength, so the dead weight is heavy, under normal conditions, the safe distance between a silt scraper and the tank bottom is kept between 5 and 15 centimeters when the truss operates, in production, the phenomenon that the truss operates for several years sinks integrally, the silt scraper touches the bottom, the structure must be stopped for production and maintenance, the production task is delayed, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a deflection-resistant adjustable mud discharging truss to solve the problem that the truss sinks after running for a period of time,

in order to solve the technical problem, the utility model discloses the technical scheme who takes does:

a deflection-resistant adjustable mud discharging truss is installed on a sedimentation tank and comprises truss bodies arranged on two sides of a central pillar of a pre-sedimentation tank, wherein each truss body comprises an upper chord beam and a lower chord beam, the upper chord beam and the lower chord beam are connected through vertical stand columns, an inclined strut is installed between every two adjacent stand columns, a cross beam support plate is welded in the middle of the upper chord beam beside the central pillar, the middle of the cross beam support plate is connected with a rotating shaft fixed in the middle of the central pillar, two door-shaped supports are symmetrically welded on the cross beam support plate, the upper cross beams of the door-shaped supports are respectively connected with the lower chord beams on two sides of the central pillar through two stay cables, and the bottoms of the lower chord beams are connected with a mud scraping device; an outer rail is installed at the top of the side wall of the sedimentation tank, a driving trolley is installed on one side, extending to the upper portion of the side wall of the sedimentation tank, of the upper chord beam, and a roller at the bottom of the driving trolley is embedded on the outer rail.

Preferably, a gallery is mounted on one side of the upper chord beam.

Preferably, the two ends of the stay cable are provided with connecting lock catches, and the connecting lock catches are connected through the rigging screw buckles.

Preferably, the upper surface of the central pillar is provided with an inner rail, and the bottom of the cross beam support plate is provided with a roller clamped on the inner rail.

Preferably, the mud scraping device comprises a plurality of groups of upper connecting plates which are arranged in parallel and welded on the lower chord beam, and the bottom of each upper connecting plate is connected with the mud scraping plate through a plurality of connecting rods.

Preferably, the connecting rod is provided with a plurality of bolt holes, and the mud scraper is arranged in the bolt holes through bolts.

Preferably, the upper connecting plate and the mud scraper are both arc-shaped plates.

The utility model discloses a working process does:

before the operation, the operator adjusts the relative position of the connecting rod and the mud scraping plate according to the safe distance between the bottom of the sedimentation tank and the truss, and adjusts the height of the lower chord beam by rotating the rigging screw buckle to prevent the lower chord beam from deflecting downwards. The driving trolley is started to run along the outer rail, the driving trolley pushes the truss body to rotate around the rotating shaft, and the mud scraper starts mud scraping operation.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a stay cable produces the pulling force to the last quarter girder between door type frame and last quarter girder to fixing, to prevent that the last quarter girder from warping down, the elasticity degree of stay cable can be adjusted through the rigging turnbuckle. The service time of the truss is prolonged, and the maintenance times are reduced.

The utility model discloses a bolt hole that sets up on the connecting rod, the height of adjustable mud scraper makes the work that the mud scraper can be more accurate.

The utility model discloses set up the inner rail at the upper surface of center pillar, the bottom installation gyro wheel of upper chord roof beam, the inner rail plays the supporting role to the upper chord roof beam, has guaranteed the smooth and easy rotation of truss body.

The utility model discloses at the outer end installation drive dolly of upper chord member, the drive dolly moves on the outer orbit, has guaranteed the steady operation of truss.

The utility model discloses at the outside installation corridor of upper chord member, be convenient for operation personnel maintain, survey the mud scraping equipment and the operation conditions of sedimentation tank.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the truss body of FIG. 1;

fig. 3 is a top view of the present invention of fig. 1;

FIG. 4 is a schematic view of the structure of the portal frame and the stay cables;

FIG. 5 is a schematic view of the structure of the portal frame and the stay cables;

FIG. 6 is a schematic structural view of the mud scraping device;

the device comprises a door-shaped support 1, a gate-shaped support 2, a mud scraping device 3, a gallery 4, a driving trolley 5, an upper chord beam 6, an upright post 7, a rotating shaft 8, an inclined strut 9, a lower chord beam 10, a connecting rod 11, a stay cable 12, a sedimentation tank 13, a cross beam support plate 14, an outer rail 15, an inner rail 16, a central strut 17, a connecting lock catch 18, a cableway screw buckle 19, an upper connecting plate 20 and a mud scraping plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An anti-deflection adjustable mud discharging truss is arranged on a sedimentation tank 12 and comprises truss bodies arranged on two sides of a central pillar 16 of the pre-sedimentation tank 12, wherein each truss body comprises an upper chord 5 and a lower chord 9, the upper chord 5 and the lower chord 9 are connected through vertical upright posts 6, an inclined strut 8 is arranged between every two adjacent upright posts 6, a cross beam support plate 13 is welded in the middle of the upper chord 5 beside the central pillar 16, the middle of the cross beam support plate 13 is connected with a rotating shaft 7 fixed in the middle of the central pillar 16, two door-shaped supports 1 are symmetrically welded on the cross beam support plate 13, an upper cross beam of each door-shaped support 1 is respectively connected with the lower chord 9 on two sides of the central pillar 16 through two stay cables 11, and the bottom of each lower chord 9 is connected with a mud scraping device 2; an outer rail 14 is installed at the top of the side wall of the sedimentation tank 12, a driving trolley 4 is installed on one side, extending to the upper portion of the side wall of the sedimentation tank 12, of the upper chord beam 5, and rollers at the bottom of the driving trolley 4 are embedded on the outer rail 14.

A gallery 3 is mounted on one side of the upper chord 5.

The two ends of the stay cable 11 are provided with connecting lock catches 17, and the connecting lock catches 17 are connected through rigging screw buckles 18.

The upper surface of the central pillar 16 is provided with an inner rail 15, and the bottom of the beam support plate 13 is provided with a roller clamped on the inner rail 15.

The mud scraping device 2 comprises a plurality of groups of upper connecting plates 19 which are arranged in parallel and welded on the lower chord beam 9, and the bottom of each upper connecting plate 19 is connected with a mud scraping plate 20 through a plurality of connecting rods 10. The connecting rod 10 is provided with a plurality of bolt holes, and the mud scraper 20 is installed in the bolt holes through bolts. The upper connecting plate 19 and the scraper 20 are both arc-shaped plates.

The utility model discloses a working process does:

before operation, an operator adjusts the relative position of the connecting rod 10 and the mud scraper 20 according to the height of mud in the sedimentation tank 12, and adjusts the height of the lower chord beam 9 by rotating the rigging screw buckle 18 to prevent the lower chord beam 9 from downwarping. The driving trolley 4 is started to run along the outer rail 14, the driving trolley 4 pushes the truss body to rotate around the rotating shaft 7, and the mud scraper 20 starts mud scraping operation.

What has been described above is merely a preferred example of the present invention. It should be noted that other equivalent variations and modifications can be made by those skilled in the art in light of the technical teaching provided by the present invention, as well as the common general knowledge in the mechanical field, and should be considered as the protection scope of the present invention.

Claims

1. The utility model provides an adjustable row's of anti-deflection mud truss, this truss is installed on sedimentation tank (12), including setting up the truss body in center pillar (16) both sides of sedimentation tank (12), the truss body includes upper chord roof beam (5) and lower chord roof beam (9), is connected through perpendicular stand (6) between upper chord roof beam (5) and lower chord roof beam (9), installs oblique branch (8), its characterized in that between adjacent stand (6): a cross beam support plate (13) is welded in the middle of an upper chord beam (5) beside a central pillar (16), the middle of the cross beam support plate (13) is connected with a rotating shaft (7) fixed in the middle of the central pillar (16), two door-shaped supports (1) are symmetrically welded on the cross beam support plate (13), the upper cross beam of each door-shaped support (1) is respectively connected with lower chord beams (9) on two sides of the central pillar (16) through two stay cables (11), and the bottom of each lower chord beam (9) is connected with a mud scraping device (2); an outer rail (14) is installed at the top of the side wall of the sedimentation tank (12), a driving trolley (4) is installed on one side, extending to the upper portion of the side wall of the sedimentation tank (12), of the upper chord beam (5), and rollers at the bottom of the driving trolley (4) are embedded on the outer rail (14).

2. The deflection-resistant adjustable mud discharge truss of claim 1, wherein: and a gallery (3) is arranged on one side of the upper chord beam (5).

3. The deflection-resistant adjustable mud discharging truss according to claim 1 or 2, wherein: the two ends of the stay cable (11) are provided with connecting lock catches (17), and the connecting lock catches (17) are connected through rigging screw buckles (18).

4. The deflection-resistant adjustable mud discharge truss of claim 3, wherein: an inner rail (15) is arranged on the upper surface of the central pillar (16), and rollers clamped on the inner rail (15) are mounted at the bottom of the cross beam support plate (13).

5. The deflection-resistant adjustable mud discharge truss of claim 4, wherein: the mud scraping device (2) comprises a plurality of groups of upper connecting plates (19) which are arranged in parallel and welded on the lower chord beam (9), and the bottom of each upper connecting plate (19) is connected with a mud scraping plate (20) through a plurality of connecting rods (10).

6. The deflection-resistant adjustable mud discharge truss of claim 5, wherein: a plurality of bolt holes are formed in the connecting rod (10), and the mud scraper (20) is installed in the bolt holes through bolts.

7. The deflection-resistant adjustable mud discharge truss of claim 6, wherein: the upper connecting plate (19) and the mud scraper (20) are both arc-shaped plates.