CN214971969U

CN214971969U - Practical secondary sedimentation tank

Info

Publication number: CN214971969U
Application number: CN202120814114.5U
Authority: CN
Inventors: 斯园吉
Original assignee: Shaoxing Shangyu Mingji Environmental Protection Technology Co ltd
Current assignee: Shaoxing Shangyu Mingji Environmental Protection Technology Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-03
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a practical secondary sedimentation tank relates to secondary sedimentation tank, aims at solving the problem that secondary sedimentation tank mud scraper maintained and changed the difficulty, and its technical scheme main points are: including the cell body, the center department of cell body rotates and is connected with the supporting seat, and fixedly connected with scrapes the mud device with conflict of inner diapire in the cell body on the supporting seat, scrapes the mud device and includes the support of fixed connection in the supporting seat both sides, scrapes the mud device and still includes a plurality of installation pieces of fixed connection on the support and can dismantle the scraper blade of connection on the installation piece, sets up the mounting groove that supplies the scraper blade to penetrate on the installation piece. The utility model discloses a set up a plurality of scrapers that rely on formation "S" shape, increase clean efficiency, make things convenient for the maintenance and the change of scraper blade, through arch and spacing groove cooperation, strengthen the intensity between the scraper blade.

Description

Practical secondary sedimentation tank

Technical Field

The utility model relates to a secondary sedimentation tank technical field, more specifically says, it relates to a practical secondary sedimentation tank.

Background

And the secondary sedimentation tank is used for receiving the effluent of the secondary treatment of the wastewater and removing biological suspended solids. In the activated sludge process, the mixed liquid flowing out of an aeration tank is subjected to sludge-water separation and sludge concentration in a secondary sedimentation tank, the clarified effluent overflows and is discharged outside, part of the concentrated activated sludge flows back to the aeration tank, and the rest is discharged outside as residual sludge. In the biomembrane method, the fallen biomembrane is subjected to sludge-water separation in a secondary sedimentation tank along with the effluent of the filter tank.

Be located the mud scraping device at secondary sedimentation pond bottom of the pool, generally adopt a straight-bar, through installing the block rubber on the straight-bar, scrape the silt of bottom of the pool to the silt inslot that is located secondary sedimentation pond center, accomplish the suction of silt from the silt inslot, accomplish the emission of silt, adopt under the condition of straight-bar, receive great resistance when receiving the damage when the straight-bar, can influence the clear effect of straight-bar, and when needs change the straight-bar, the straight-bar overlength, it is great to lead to the weight and the occupation space of straight-bar, it is comparatively troublesome to lead to changing the straight-bar, the part that does not have the damage on the straight-bar is also changed, and the maintenance cost is increased.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a practical secondary sedimentation tank for cleaning efficiency, convenient maintenance and change.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a practical secondary sedimentation tank, includes the cell body, the center department of cell body rotates and is connected with the supporting seat, fixedly connected with scrapes the mud device with conflict of cell body inner bottom wall on the supporting seat, it includes the support of fixed connection in the supporting seat both sides, its characterized in that to scrape the mud device: the mud scraping device further comprises a plurality of installation blocks fixedly connected to the support and a scraper detachably connected to the installation blocks, and installation grooves for the scraper to penetrate are formed in the installation blocks.

Through adopting the above technical scheme, in operation, the supporting seat rotates, drive the support and rotate, can dismantle the scraper blade of connection on the support and rotate simultaneously, the scraper blade slides on the bottom wall in the cell body, will deposit and scrape away the mud on the bottom wall in the cell body, along the surface of scraper blade, flow to the central point of cell body and put, be discharged by the pipeline, because the scraper blade is in the bottom of the pool, soak by corrosive liquids, the easy breakage that appears, lead to bottom of the pool mud to be difficult to clear away totally, can dismantle the scraper blade of connection on the installation piece, make things convenient for follow-up artificial repair, do not need whole renewal part simultaneously, and the cost is saved.

The utility model discloses further set up to: and the plurality of scrapers are spliced into an S shape.

Through adopting above-mentioned technical scheme, the scraper blade of "S" shape that splices into is at the bottom of the pool during operation, and thick mud moves along the scraper blade surface, and mud moves the center department of cell body under the effect of scraper blade and gravity, does not have the clearance between the scraper blade, and clearance between the scraper blade can form rivers, and rivers can take mud to move the rear of scraper blade, seriously influence clear efficiency, reduce the clearance, strengthen the guide effect of scraper blade, increase clean effect.

The utility model discloses further set up to: the mounting groove is internally provided with a limiting groove with a circular crown-shaped section, the two ends of the scraper are fixedly connected with semi-cylindrical bulges, the bulges are abutted against the inner wall of the limiting groove, and the radius of the limiting groove is smaller than the distance from a convex sideline to an adjacent contact point outside the scraper.

By adopting the technical scheme, when the scraper blade of "S" shape is moving at the bottom, the scraper blade receives submarine resistance, because the front end of scraper blade is kept away from the supporting seat, the arm of force of the scraper blade farthest from the supporting seat is the longest, can make the scraper blade receive great shearing force, in operation, the shearing force is used on the scraper blade, circular-arc scraper blade inboard receives a tensile stress, make two adjacent scraper blades rotate around scraper blade periphery contact point, because the both ends of scraper blade all fixedly connected with semi-cylindrical arch, when semi-cylindrical arch rotated, the radius of spacing groove was less than protruding sideline to adjacent the distance of scraper blade periphery contact point, the protruding rotation of semi-cylindrical can be spacing by the inner wall of spacing groove and live the rotation, strengthen the ability of coping with the shearing force between the adjacent scraper blade, increase the life of scraper blade.

The utility model discloses further set up to: the opening direction of the mounting groove is opposite to the rotating direction of the supporting seat.

Through adopting above-mentioned technical scheme, through setting up the opening direction in the rotation direction who deviates from the support column, because the scraper blade is installed in the side of installation piece, make things convenient for tearing open of scraper blade to trade and installing.

The utility model discloses further set up to: the top surface of the scraper is provided with a flow guide inclined plane.

Through adopting above-mentioned technical scheme, through setting up the water conservancy diversion inclined plane, reduce the scraper blade at submarine pivoted resistance, reduce the mud simultaneously and remain at the scraper blade upper surface, prevent that remaining mud is more, influence the effect of sediment.

The utility model discloses further set up to: the contact surface of the scraping plate and the pool body is detachably connected with a rubber pad.

Through adopting above-mentioned technical scheme, through setting up the rubber pad, reduce the wearing and tearing of scraper blade, increase the frictional force of scraper blade and bottom of the pool simultaneously, increase clean efficiency.

The utility model discloses further set up to: the section of the scraping plate along the vertical plane of the inner bottom wall of the tank body is L-shaped.

Through adopting above-mentioned technical scheme, the cross-section of scraper bar is "L" shape, and the scraper blade forms the recess of "C" shape with the inner bottom wall of cell body, and the recess is used for holding mud, reduces the mud of sediment and spills over along the upper surface of scraper blade, influences the sedimentation effect of sedimentation tank

The utility model discloses further set up to: and the outer side of the scraper is fixedly connected with a reinforcing rib.

Through adopting above-mentioned technical scheme, through setting up the strengthening rib, increase scraper blade intensity, increase life.

To sum up, the utility model discloses following beneficial effect has:

through setting up a plurality of scraper blades of dismantling the connection, make things convenient for the maintenance and the change of scraper blade, through the open-ended direction that sets up the mounting groove, make things convenient for the installation of scraper blade, a plurality of scraper blades form the scraper blade of "S" type, have the effect of direction, increase clear efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a tank body; 2. a supporting seat; 3. a support; 4. mounting blocks; 5. a squeegee; 6. mounting grooves; 7. a limiting groove; 8. and (4) protruding.

Detailed Description

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

Example (b): the utility model provides a practical secondary sedimentation tank, as shown in figure 1 and figure 2, including cell body 1, supporting seat 2, mud scraper, supporting seat 2 rotates to be connected at circular cell body 1 and is close to the central position, mud scraper fixed connection in supporting seat 2 both sides and with 1 interior diapire laminating of cell body.

As shown in fig. 1 and fig. 2, the mud scraping device includes support 3 welded on support seat 2, installation piece 4 welded on support 3 and a plurality of scraper blades 5 detachably connected with installation piece 4 through the bolt, during operation, support seat 2 drives support 3 to rotate to scraper blade 5 rotates on driving installation piece 4, accomplishes the cleanness to the bottom surface in cell body 1, and single less scraper blade 5 makes things convenient for subsequent maintenance and change, changes comparatively save material simultaneously, and is a plurality of scraper blade 5 splices into "S" shape, and the effect of the direction that the scraper blade 5 of "S" shape has lets the mud of diapire in cell body 1 enter into the sludge groove that cell body 1 is close to the center along scraper blade 5, increases the efficiency of collecting.

As shown in fig. 1 and fig. 2, one side of installation piece 4 supporting seat 2 rotation direction dorsad begins to have mounting groove 6, scraper blade 5 sliding connection is in mounting groove 6, through setting up the installation direction, set up the installation direction of scraper blade 5 in the side of installation piece 4, make things convenient for the installation of scraper blade 5, the cross-section of scraper blade 5 is "L" shape, scraper blade 5 and 1 bottom surface vacuole formation of cell body, be used for holding mud, scraper blade 5 that prevents the motion drives rivers, rivers drive submarine mud motion, influence the sedimentation effect, the top surface of scraper blade 5 has been seted up and has been taken to the inclined plane, a drainage effect for rivers, reduce the deposit of surface mud on scraper blade 5 when reducing the rivers resistance, the conflict department of scraper blade 5 and the interior diapire of cell body 1 passes through adhesive fixedly connected with the rubber pad, improve the degree of striking off of mud.

As shown in fig. 1 and 2, the inner wall of the mounting groove 6 facing the opening is provided with a limiting groove 7, two ends of each scraper 5 are integrally connected with a semi-cylindrical protrusion 8, the semi-cylindrical protrusions 8 are abutted against the inner wall of the limiting groove 7, and the radius of the limiting groove 7 is smaller than the distance from the sideline of each protrusion 8 to the peripheral contact point of the adjacent scraper 5.

Principle of operation

When the sludge scraper works, the supporting seat 2 positioned at the center of the pool body 1 rotates to drive the sludge scraper on the supporting seat 2 to rotate, the scraper 5 abutted against the inner bottom wall of the pool body 1 rotates, the rubber pads fixedly connected with the adhesive on the scraper 5 push the sludge on the inner bottom wall of the pool body 1, the pushed sludge moves to the center of the pool body 1 under the action of self gravity and the guiding action of the S-shaped scraper 5, when the scraper 5 pushes the sludge, the friction force of the sludge and the inner bottom wall of the pool bottom acts on the scraper 5, so that the scraper 5 is subjected to a transverse shearing force, the shearing force acts on the scraper 5 to push the scraper 5 to generate a trace transverse deformation, the adjacent scraper 5 rotates along the peripheral contact point to drive the semi-cylindrical bulges 8 at the two ends of the scraper 5 to rotate, because the semi-cylindrical bulges 8 are abutted against the limiting grooves 7, the limiting grooves 7 give a reaction force to the bulges 8 and offset the shearing force, the strength between the squeegees 5 is ensured.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a practical secondary sedimentation tank, includes cell body (1), the center department of cell body (1) rotates and is connected with supporting seat (2), the mud scraping device of conflict of fixedly connected with bottom wall in cell body (1) on supporting seat (2), the mud scraping device includes support (3) of fixed connection in supporting seat (2) both sides, its characterized in that: the mud scraping device further comprises a plurality of mounting blocks (4) fixedly connected to the support (3) and a scraper (5) detachably connected to the mounting blocks (4), and mounting grooves (6) for the scraper (5) to penetrate are formed in the mounting blocks (4).

2. The practical secondary sedimentation tank of claim 1, wherein: the plurality of the scrapers (5) are spliced into an S shape.

3. A practical secondary sedimentation tank according to claim 2, wherein: limiting grooves (7) with circular-crown-shaped cross sections are formed in the mounting grooves (6), semi-cylindrical protrusions (8) are fixedly connected to the two ends of the scraper (5), the protrusions (8) are abutted to the inner walls of the limiting grooves (7), and the radius of each limiting groove (7) is smaller than the distance from a side line of each protrusion (8) to an adjacent outer contact point of the scraper (5).

4. The practical secondary sedimentation tank of claim 1, wherein: the opening direction of the mounting groove (6) is opposite to the rotating direction of the supporting seat (2).

5. The practical secondary sedimentation tank of claim 1, wherein: the top surface of the scraper (5) is provided with a flow guide inclined plane.

6. The practical secondary sedimentation tank of claim 1, wherein: the contact surface of the scraper (5) and the pool body (1) is detachably connected with a rubber pad.

7. The practical secondary sedimentation tank of claim 1, wherein: the section of the scraping plate (5) along the vertical plane of the inner bottom wall of the tank body (1) is L-shaped.

8. The practical secondary sedimentation tank of claim 1, wherein: and the outer side of the scraper (5) is fixedly connected with a reinforcing rib.