CN216366767U

CN216366767U - Slag discharging device of horizontal flow sedimentation tank

Info

Publication number: CN216366767U
Application number: CN202122944025.5U
Authority: CN
Inventors: 滕红文; 程鉴昌; 黎庆辉; 谢福名; 廖火烽; 黎梓轩
Original assignee: Guangdong Xinhuan Environmental Industry Group Co ltd
Current assignee: Guangdong Xinhuan Environmental Industry Group Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-26
Anticipated expiration: 2031-11-29

Abstract

A deslagging device of a horizontal flow sedimentation tank comprises scum collecting pipes, wherein a group of scum collecting pipes is arranged between every two adjacent groups of effluent weirs; the lower side of each group of scum collecting pipes is vertically connected with a slag conveying branch pipe, and the slag conveying branch pipe is connected with a slag conveying main pipe. The utility model solves the problem that the conventional horizontal flow sedimentation tank adopting the finger-shaped groove effluent weir is not provided with a scum discharge device, which can influence the subsequent treatment process.

Description

Slag discharging device of horizontal flow sedimentation tank

Technical Field

The utility model relates to the field of water treatment equipment, in particular to a deslagging device of a horizontal flow sedimentation tank.

Background

A horizontal sedimentation tank is a main treatment structure for separating suspended matters in the water treatment process, has the advantages of simple structure, convenient management, parallel construction of a plurality of groups and the like, and is widely used for pretreatment of water supply and sewage, post-treatment of biological treatment and final treatment.

Because the length-width ratio of the horizontal flow sedimentation tank is required to be not less than 4:1, the width of the water outlet end is relatively small; the streamline near the moderate effluent area is too concentrated, and the length of the effluent weir needs to be increased as much as possible so as to reduce the flow load of the weir crest. In practical application, a finger-shaped groove effluent weir is usually adopted, namely, the effluent weir is added in the middle of each sedimentation tank, which is equivalent to increasing the midway water collection effect of the sedimentation tank, so that the weir port load is reduced, the horizontal flow rate in the rear-section sedimentation tank can be reduced, and the improvement of the sedimentation removal rate or the improvement of the water treatment capacity of the sedimentation tank is facilitated.

However, the scum of the horizontal flow sedimentation tank adopting the finger-shaped groove effluent weir is not easy to discharge, and the scum pipe arranged on the water surface can obstruct the effluent from flowing when passing through the finger-shaped groove effluent weir, so that the operation cannot be carried out. The traditional horizontal flow sedimentation tank adopting the finger-shaped groove effluent weir generally does not consider scum discharge and allows scum to enter the next process. But the scum is not discharged, so that the burden of the next procedure is increased, the scum enters the filter and is easy to block the filter, and the washing frequency needs to be increased; the scum enters a biochemical system, so that more oxygen is consumed, and the proceeding of the biochemical system is influenced; a layer of scum is left on the surface of the pool, which can also greatly affect the appearance. Therefore, the utility model of the deslagging device of the horizontal flow sedimentation tank is very important.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a deslagging device of a horizontal flow sedimentation tank, which solves the problem that the subsequent treatment process is influenced because a scum discharging device is not arranged in the traditional horizontal flow sedimentation tank adopting a finger-shaped groove effluent weir.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a deslagging device of a horizontal flow sedimentation tank comprises scum collecting pipes, wherein a group of scum collecting pipes is arranged between every two adjacent groups of effluent weirs, slag conveying main pipes are arranged below the scum collecting pipes and the effluent weirs, and the slag conveying main pipes are arranged along the width direction of the tank; the lower side of each group of scum collecting pipes is vertically connected with a slag conveying branch pipe, and the slag conveying branch pipe is connected with a slag conveying main pipe.

Furthermore, narrow and long scum holes are uniformly formed in the side wall of the scum collecting pipe.

Furthermore, one end of the scum collecting pipe is provided with a pipeline rotating device.

Furthermore, the pipeline rotating device comprises a lifter arranged on the wall of the sedimentation tank, the lower end of a transmission rod of the lifter is movably connected with a crank arm, and the crank arm is fixedly connected with a fixed seat on the outer side wall of the scum collecting pipe.

Furthermore, bearings are arranged at two ends of the scum collecting pipe and are fixed on the concrete canal walls at two sides of the water outlet weir through shaft sleeves.

Furthermore, the slag conveying branch pipe is divided into an upper section and a lower section, and the two sections of pipelines are connected through rubber joints.

Furthermore, the scum collecting pipe is fixedly connected with the slag conveying branch pipe by welding, and the slag conveying branch pipe is fixedly connected with the slag conveying main pipe by welding.

Furthermore, one end of the slag conveying main pipe is communicated with the outside of the sedimentation tank.

The utility model has the beneficial effects that: the utility model collects the scum through the segmented pipeline, the scum can flow into each group of scum collecting pipes and scum conveying branch pipes through scum holes, and then flow together to the scum conveying main pipe, and finally is discharged out of the sedimentation tank, and bypasses the effluent weir, thus the flow of effluent can not be obstructed. The utility model has simple and practical structure, can be adjusted according to requirements and has high scum removing efficiency.

The utility model will be explained in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a plan structure view of a horizontal flow sedimentation tank slag discharging device of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1, focusing on the structure of the pipe rotating device.

Detailed Description

The deslagging device of the horizontal flow sedimentation tank shown in fig. 1 and fig. 2 comprises scum collecting pipes 2, wherein a group of scum collecting pipes 2 is arranged between every two adjacent groups of effluent weirs 1, slag conveying dry pipes 3 are arranged below the scum collecting pipes 2 and the effluent weirs 1, and the slag conveying dry pipes 3 are arranged along the length direction of the tank; the lower side of each group of scum collecting pipes 2 is vertically connected with a slag conveying branch pipe 4, and the slag conveying branch pipe 4 is connected with a slag conveying main pipe 3.

Further, in order to better let the scum on the water surface flow into the scum collecting pipe 2, the scum collecting pipe 2 is uniformly provided with narrow and long scum holes 201 on the side wall.

Furthermore, in order to adjust the height and angle of the scum collecting pipe 2 floating up the scum hole 201 according to the height of the water surface, a pipeline rotating device 6 is arranged at one end of the scum collecting pipe 2, and the pipeline rotating device 6 can drive the scum collecting pipe 2 to rotate along the axis to finely adjust the angle.

Further, as shown in fig. 3, the pipe rotating device 6 includes a lifter 601 disposed on the wall of the settling tank, a lower end of a transmission rod 602 of the lifter 601 is movably connected with a curved arm 603, the curved arm 603 is movably connected through a pin, and the curved arm 603 is fixedly connected with a fixed seat 604 on the outer side wall of the scum collecting pipe 2. The driving rod 602 drives the crank arm 603 to move up and down, so that the crank arm 603 drives the scum collecting pipe 2 to rotate at a small angle.

Further, in order to facilitate the rotation of the scum collecting pipe 2, bearings 7 are conveniently arranged at two ends of the scum collecting pipe 2, and the bearings 7 can be underwater bearings; in order to facilitate the fixation of the bearing 7, the bearing 7 is fixed on the concrete channel walls 8 at two sides of the water outlet weir 1 through shaft sleeves.

Furthermore, in order that the scum collecting pipe 2 can drive the slag conveying branch pipe 4 to rotate at a small angle when the scum collecting pipe 2 rotates, the slag conveying branch pipe 4 is divided into an upper section and a lower section, the two sections of pipelines are connected through a rubber joint 5, and the rubber joint 5 has elasticity and can be properly deformed according to the rotating angle of the slag conveying branch pipe 4.

Furthermore, in order to facilitate the downward sliding of the scum, the scum collecting pipe 2 is fixedly connected with the slag conveying branch pipe 4 by welding, and the slag conveying branch pipe 4 is fixedly connected with the slag conveying main pipe 3 by welding.

Further, in order to facilitate the scum to be discharged out of the sedimentation tank, one end of the scum conveying main pipe 3 is communicated with the outside of the sedimentation tank and can be further connected to a scum collecting device.

The utility model has been described above with reference to the accompanying drawings, and it is to be understood that the utility model is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description, since various modifications may be made without departing from the spirit or scope of the utility model.

Claims

1. A deslagging device of a horizontal flow sedimentation tank comprises scum collecting pipes (2), and is characterized in that a group of scum collecting pipes (2) are arranged between every two adjacent groups of effluent weirs (1), slag conveying dry pipes (3) are arranged below the scum collecting pipes (2) and the effluent weirs (1), and the slag conveying dry pipes (3) are arranged along the width direction of the tank; the lower side of each group of scum collecting pipes (2) is vertically connected with a slag conveying branch pipe (4), and the slag conveying branch pipe (4) is connected with a slag conveying main pipe (3).

2. The deslagging device of the horizontal flow sedimentation tank according to claim 1, wherein the side wall of the scum collecting pipe (2) is uniformly provided with narrow and long scum holes (201).

3. The deslagging device of the horizontal flow sedimentation tank according to claim 1 or 2, characterized in that one end of the scum collecting pipe (2) is provided with a pipeline rotating device (6).

4. The horizontal flow sedimentation tank slag discharging device according to claim 3, wherein the pipeline rotating device (6) comprises a lifter (601) arranged on the wall of the sedimentation tank, the lower end of a transmission rod (602) of the lifter (601) is movably connected with a crank arm (603), and the crank arm (603) is fixedly connected with a fixed seat (604) on the outer side wall of the scum collecting pipe (2).

5. The deslagging device of the horizontal flow sedimentation tank according to claim 1, wherein bearings (7) are arranged at two ends of the scum collecting pipe (2), and the bearings (7) are fixed on concrete channel walls (8) at two sides of the water outlet weir (1) through shaft sleeves.

6. The slag removal device for the horizontal flow sedimentation tank according to claim 1, wherein the slag conveying branch pipe (4) is divided into an upper section and a lower section, and the two sections of pipelines are connected through a rubber joint (5).

7. The deslagging device of the horizontal flow sedimentation tank according to claim 1, wherein the scum collecting pipe (2) is fixedly connected with the slag conveying branch pipe (4) by welding, and the slag conveying branch pipe (4) is fixedly connected with the slag conveying main pipe (3) by welding.

8. The slag discharge device for the horizontal flow sedimentation tank according to claim 1, wherein one end of the slag conveying main pipe (3) is communicated with the outside of the sedimentation tank.