CN212854770U

CN212854770U - Sedimentation tank and desilting mechanism for sewage treatment

Info

Publication number: CN212854770U
Application number: CN202020749503.XU
Authority: CN
Inventors: 吴奉爰; 余向京; 罗欣阳; 许杨帆
Original assignee: Yiyang Shouchuang Water Co ltd
Current assignee: Yiyang Shouchuang Water Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-04-02
Anticipated expiration: 2030-05-09

Abstract

The utility model provides a sedimentation tank for sewage treatment and a desilting mechanism. The sedimentation tank for sewage treatment includes a circular tank body, a conical sludge unloading bucket connected to the bottom of the tank body, and a bracket, a main shaft and a desilting mechanism. The desilting mechanism includes a connecting shaft, a base plate, a track, a spring, and a mud scraper; the connecting shaft and the main shaft are movably connected by threads, and the base plate is fixed on its outer wall at an angle perpendicular to the connecting shaft, along the The base plate is laid with the rail, on which the mud scraper is installed in a structure slidable in the axial direction, and the mud scraper is also connected with the connecting shaft through the spring. The sewage treatment sedimentation tank and desilting mechanism provided by the utility model solve the technical problem of inconvenient cleaning of the sludge on the wall of the sedimentation tank.

Description

Sedimentation tank and desilting mechanism for sewage treatment

Technical Field

The utility model relates to a sewage treatment field, concretely relates to sedimentation tank and desilt mechanism for sewage treatment.

Background

The sedimentation tank is a structure for removing suspended matters in water by applying sedimentation and is widely used in wastewater treatment. The basic structure is that sewage is discharged into a pool, the sewage is deposited on the bottom of the pool by the weight of the sludge, and finally the sewage is discharged from a discharge port arranged on the bottom of the pool. In order to further increase the deposition speed, various water supply modes such as a vertical flow mode, a horizontal flow mode, an inclined tube mode and the like exist. However, in any type of sedimentation tank, the problem that the sludge on the tank wall is difficult to clean is solved. Although the sludge discharge port at the bottom of the tank can discharge most of sludge, a certain proportion of sludge is inevitably deposited on the wall and the bottom of the tank and needs to be cleaned regularly. The manual cleaning mode has the problems of poor working environment and low efficiency, and the cost of the special sludge removing equipment is high.

SUMMERY OF THE UTILITY MODEL

For solving the inconvenient technical problem of sedimentation tank pool wall mud clearance of prior art, the utility model provides a sedimentation tank and desilting mechanism for sewage treatment.

A sedimentation tank for sewage treatment comprises a circular tank body, a conical mud discharge hopper communicated with the bottom of the tank body, a support, a main shaft and a mud removal mechanism; the support is fixed on the ground or the outer wall of the tank body, extends to the vertical upper part of the tank body, and is crossed with the tank body in the axial direction in a straight line; the main shaft is fixed on the support and is arranged vertically above the support at an angle coaxial with the tank body; the desilting mechanism is arranged on the main shaft, and the desilting mechanism can simultaneously move along the axial direction and the circumferential direction of the main shaft.

In a preferred embodiment of the sedimentation tank for sewage treatment provided by the present invention, the support comprises a base surrounding the tank body, a support body provided on the base and extending to a position vertically above the tank body and intersecting in a star shape, and an intersection point located on a straight line where the tank body is located in the axial direction.

The utility model provides a sedimentation tank for sewage treatment in the preferred embodiment, still include actuating mechanism, drive desilting mechanism follows simultaneously the axial of main shaft, circumferential motion.

A mud removing mechanism comprises a connecting shaft, a base plate, a track, a spring and a mud scraper; the connecting shaft is movably connected with the main shaft through threads, the base plate is fixed on the outer wall of the base plate at an angle vertical to the connecting shaft, the track is laid on the base plate, the mud scraper is arranged on the track in a structure capable of sliding axially, and the mud scraper is further connected with the connecting shaft through the spring.

In a preferred embodiment of the mud removing mechanism provided by the present invention, the main shaft is a sleeve with a thread on the inner wall, the outer wall of the connecting shaft is provided with a thread capable of engaging with the connecting shaft, and the connecting shaft is sequentially passed through the main shaft, the support and the motor provided on the support.

In a preferred embodiment of the mud removing mechanism provided by the present invention, the mud scraper comprises a slider connected to the rail, and a scraper fixed to the slider.

The utility model provides a mud removing mechanism in a preferred embodiment, still include actuating mechanism, drive the connecting axle is followed simultaneously the axial of main shaft, circumferential motion.

Compared with the prior art, the utility model provides a settling pond for sewage treatment has adopted desilt mechanism, can be convenient scrape the mud of inner wall down, avoided the problem that the operational environment is relatively poor, the inefficiency that manual handling exists. And the desilting mechanism has a simpler structure, can adapt to the change of the inner diameter of the tank, and solves the problem of desilting with low cost.

Drawings

FIG. 1 is a schematic structural view of a settling tank for sewage treatment provided by the present invention;

fig. 2 is a schematic structural diagram of the mud removing mechanism provided by the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, the sedimentation tank 1 for sewage treatment according to the present invention includes a tank body 11, a mud discharging hopper 12, a support 13, and a main shaft 14.

The tank body 11 is a round tank body with an open top surface, and the bottom of the tank body is connected with the conical mud discharging hopper 12. The tip of the mud discharging hopper 12 faces downwards and is provided with a mud discharging port 121. The support 13 comprises five upright rods 131 vertically arranged, the upright rods are attached to the outer wall of the tank body 11 at equal intervals, a truss for reinforcing the structure is arranged at one end close to the bottom, and a star-shaped frame 132 connected with the upright rods 131 is arranged at the top end. The center of the spider 132 is also the center of the tank 11, and the main shaft 14 is disposed coaxially with the tank 11.

Please refer to fig. 2, which is a schematic structural diagram of the mud removing mechanism 2 of the present invention, including a connecting shaft 21, a base plate 22, a rail 23, a spring 24, and a mud scraper 25.

The spindle 14 is a cylindrical structure, and the inner wall of the spindle is provided with threads. The connecting shaft 21 is a solid shaft and is inserted into the main shaft 14, and a thread matched with the inner wall of the main shaft 14 is arranged on the outer wall of the connecting shaft. The bottom end of the connecting shaft 21 is fixedly connected with the strip-shaped substrate 22 at an angle perpendicular to the connecting shaft 21 in the plane and the length direction. The rails 23 are laid on the upper surface of the base plate 22 along the longitudinal direction thereof.

The length of the rail 23 is shorter than that of the substrate 22, and one end of the substrate 22 far away from the connecting shaft 21 is attached. The rail 23 is of a semi-cylindrical structure, the plane of the rail is attached to the substrate 22, the arc surface faces upwards, and a circular through hole is formed in the inner edge in the length direction. The scraper 25 comprises a slide 251 and a scraper 252. The slider 251 is a rod inserted into the through hole of the rail 23 and in clearance fit with the through hole, one end of the rod is connected with the connecting shaft 21 through the spring 24, and the scraper 252 is fixed at the other end. The scraping plate 252 is vertically arranged, one side of the scraping plate is connected with the sliding block 251, and the other side opposite to the sliding block is chamfered to form a structure with the same angle with the connection part of the tank body 11 and the mud discharging hopper 12.

When the mud removing mechanism 2 is disposed in the tank body 11, the spring 24 should be in a compressed state so as to abut against the scraper 252 and make it closely fit with the inner wall of the tank body 11. As the connecting shaft 21 rotates along the screw thread, the scraping plate 252 also moves downwards in a spiral manner to scrape off sludge deposited on the inner wall of the tank body 11. When meeting the mud discharging hopper 12, a cut corner of the scraper 252 abuts against the mud discharging hopper, and meanwhile, the spring 24 is further compressed to adapt to the reduction of the diameter, so that the mud deposited on the inner wall of the mud discharging hopper 12 is scraped.

When the sewage treatment sedimentation tank 1 is not used, the connecting shaft 21 can be rotated reversely to the rail 23 to be attached to the star frame 132, and the use of the sewage treatment sedimentation tank 1 is not influenced.

Furthermore, a handle can be arranged at the top end of the connecting shaft 21, so that manual rotation for removing mud is facilitated. Or a driving mechanism capable of driving the connecting shaft 21 to rotate is arranged on the star-shaped frame 132, so that the mud can be automatically removed in a rotating manner. Any kind of suitable driving mechanism can be selected by those skilled in the art according to practical situations, and will not be described herein again.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a sedimentation tank for sewage treatment, includes circular shape cell body, intercommunication mud fill is unloaded to the toper of cell body bottom, its characterized in that: the device also comprises a bracket, a main shaft and a mud removing mechanism; the support is fixed on the ground or the outer wall of the tank body, extends to the vertical upper part of the tank body, and is crossed with the tank body in the axial direction in a straight line; the main shaft is fixed on the support and is arranged vertically above the support at an angle coaxial with the tank body; the desilting mechanism is arranged on the main shaft, and the desilting mechanism can simultaneously move along the axial direction and the circumferential direction of the main shaft.

2. A sedimentation tank for sewage treatment according to claim 1, characterised in that: the support is including encircleing the base of cell body, locate the base, extend to the vertical top of cell body, be the crisscross support body of star, the crosspoint is located cell body axial place straight line.

3. A sedimentation tank for sewage treatment according to claim 1, characterised in that: the driving mechanism is used for driving the desilting mechanism to simultaneously move along the axial direction and the circumferential direction of the main shaft.

4. A sedimentation tank for sewage treatment as claimed in any one of claims 1 to 3, wherein: the mud removing mechanism comprises a connecting shaft, a base plate, a track, a spring and a mud scraper; the connecting shaft is movably connected with the main shaft through threads, the base plate is fixed on the outer wall of the base plate at an angle vertical to the connecting shaft, the track is laid on the base plate, the mud scraper is arranged on the track in a structure capable of sliding axially, and the mud scraper is further connected with the connecting shaft through the spring.

5. The sedimentation tank for sewage treatment as claimed in claim 4, wherein: the main shaft is a sleeve with a thread on the inner wall, the outer wall of the connecting shaft is provided with a thread capable of being occluded with the connecting shaft, and the connecting shaft penetrates through the main shaft and the support in sequence and is connected with a motor arranged on the support.

6. The sedimentation tank for sewage treatment as claimed in claim 4, wherein: the mud scraper comprises a sliding block connected with the track and a scraper fixed on the sliding block.

7. A sedimentation tank for sewage treatment according to claim 5 or 6, characterized in that: the driving mechanism drives the connecting shaft to move along the axial direction and the circumferential direction of the main shaft simultaneously.