CN210313683U

CN210313683U - Rotary water decanter

Info

Publication number: CN210313683U
Application number: CN201921048084.0U
Authority: CN
Inventors: 王芳; 曹丁红
Original assignee: Tianjin Qingmao Environmental Protection Technology Co Ltd
Current assignee: Tianjin Qingmao Environmental Protection Technology Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-04-14
Anticipated expiration: 2029-07-04

Abstract

A rotary decanter comprises a decanter weir trough, a decanter buoy and a driving motor, wherein the upper part of the decanter weir trough is movably connected with the decanter buoy through a connecting rod, one side of the decanter weir trough, which faces the decanter buoy, is provided with an inclined part, the outer side of the inclined part is fixedly provided with a mud-blocking brush through bolts, one side of the decanter buoy, which faces the decanter weir trough, is connected with an arc-shaped mud-blocking brush through bolts, the lower part of the decanter weir trough is uniformly and evenly communicated with four water collecting branch pipes which are commonly communicated with a water collecting header pipe, and the water collecting header pipe is fixedly connected with a butt joint pipe through rotation, the component speed of the weir groove of the decanter in the vertical direction is gradually reduced, the descending speed of the weir groove of the decanter is slowed down, thereby reducing the decanting amount, and simultaneously, the mud blocking brushes are arranged on the decanter weir trough and the decanter buoy to avoid too large mud discharge amount at low water level.

Description

Rotary water decanter

Technical Field

The utility model relates to a decanter, in particular to a rotary decanter.

Background

The decanter, also known as decanter, is one of the most critical mechanical devices in the SBR process. Can be divided into a siphon decanter, a rotary decanter, a self-floating decanter and a mechanical decanter, and is widely applied to China at present and is a rotary decanter (belonging to one of mechanical decanters). The decanter is a device for periodically removing clear water adopted by SBR technology, and has the function of decanting the clear water from the surface of a static tank without stirring and precipitating to ensure the quality of the discharged water. The rotary decanter is commonly used in China, and the decanter pushes a decanting vertical pipe by a mechanical push rod to drive a decanting weir trough to descend so as to discharge pond water out of a pond. Its advantages are uniform water output by weir flow. However, in the process of the falling of the weir notch, if the rotating speed of the motor is kept unchanged, the angular speed of the falling of the weir notch is also unchanged, the vertical component speed of the falling of the weir notch is gradually increased, so that the water decanting amount is gradually increased, the difference between the front and the back of the water yield is overlarge, the phenomenon of water leakage and mud leakage can be caused when the water yield at the rear end is large, the water decanter generally cannot automatically adjust the running speed according to the height of the water level, when the water level is low, the actual water decanting time is short, the running condition is unreasonable, and the mud leakage amount is large.

Disclosure of Invention

The utility model provides a decanter with uniform weir notch vertical speed to solve the problems.

The utility model discloses the technical scheme who takes:

a rotary decanter comprises a decanter weir trough, a decanter buoy and a driving motor, wherein the upper part of the decanter weir trough is movably connected with the decanter buoy through a connecting rod, one side of the decanter weir trough, which faces the decanter buoy, is provided with an inclined part, the outer side of the inclined part is fixedly provided with a mud-blocking brush through bolts, one side of the decanter buoy, which faces the decanter weir trough, is connected with an arc-shaped mud-blocking brush through bolts, the lower part of the decanter weir trough is uniformly and communicated with four water collecting branch pipes which are communicated with a water collecting header pipe together, the water collecting header pipe is fixedly connected with a butt joint pipe through a rotating shaft pipe, the butt joint pipe is fixed on a supporting base arranged at the bottom of a sewage pool, the other end of the butt joint pipe is communicated with a drain pipe, the drain pipe penetrates through the wall of the sewage pool to be communicated with the outside, a fixing frame is arranged above the wall of the, the output shaft of driving motor is connected with the lead screw down, and the bottom rotation of lead screw is fixed on the bracket of sewage pool wall, and the screw is established to the cover on the lead screw, and the epaxial fixed pin axle that rotates of round pin is connected with branch on the outer wall of screw, and the other end and the otic placode of setting middle part on the branch pipe that catchments of branch rotate to be connected.

The pipe diameter of the butt joint pipe is smaller than that of the drain pipe.

The mud-guard brush and the arc-shaped plate-shaped mud-guard brush are uniformly provided with steel needles.

The utility model has the advantages that: the utility model discloses drive the screw by driving motor and all descend fast on the lead screw for divide speed on decanting device weir groove vertical direction of decanting reduces gradually, and decanting device weir groove falling speed slows down, thereby makes the volume of decanting reduce, sets up the fender mud brush simultaneously on decanting device weir groove and decanting device flotation pontoon, and it is too big to go out the mud volume when avoiding the low water level.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1-decanter buoy; 2-a connecting rod; 3-arc plate-shaped mud-blocking brush; 4-a mud blocking brush; 5-decanting device weir notch; 6-driving a motor; 7-a support plate; 8, fixing a frame; 9-a pin shaft; 10-a nut; 11-a strut; 12-a lead screw; 13-a sewage pool wall; 14-a carrier; 15-water collecting branch pipes; 16-a water collecting main; 17-butt joint pipe; 18-a drain pipe; 19-supporting the base.

Detailed Description

A rotary decanter comprises a decanter weir trough 5, a decanter buoy 1 and a driving motor 6, wherein the upper part of the decanter weir trough 5 is movably connected with the decanter buoy 1 through a connecting rod 2, one side of the decanter weir trough 5 facing the decanter buoy 1 is provided with an inclined part, the outer side of the inclined part is fixedly provided with a mud-blocking brush 4 through bolts, one side of the decanter buoy 1 facing the decanter weir trough 5 is connected with an arc-shaped mud-blocking brush 3 through bolts, the lower part of the decanter weir trough 5 is uniformly communicated with four water collecting branch pipes 15, the water collecting branch pipes 15 are communicated with a water collecting main pipe 16 together, the water collecting main pipe 16 is fixedly connected with a butt joint pipe 17 through a rotating shaft pipe, the butt joint pipe 17 is fixed on a supporting base 19 arranged at the bottom of a sewage tank, the other end of the butt joint pipe 17 is communicated with a drain pipe 18, the drain pipe 18 penetrates through a sewage tank wall 13 to be communicated with the, one side towards the effluent water sump is fixed with extension board 7 on the mount 8, sets up driving motor 6 on extension board 7, and driving motor 6's output shaft is down and be connected with lead screw 12, and lead screw 12's bottom is rotated and is fixed on the bracket 14 of effluent water sump wall 13, and screw 10 is established to the cover on the lead screw 12, and fixed pin 9 on the outer wall of screw 10 rotates on round pin axle 9 and is connected with branch 11, and the other end of branch 11 rotates with the otic placode of setting middle part on branch pipe 15 that catchments and is connected.

The pipe diameter of the butt joint pipe 17 is smaller than that of the drain pipe 18.

And steel needles are uniformly distributed on the mud-guard brush 4 and the arc-shaped plate-shaped mud-guard brush 3.

When the decanter works, the decanter buoy 1 is kept at the same plane with the decanter weir trough 5 at any time, the decanter buoy 1 blocks foam and dregs of upper clear water to ensure the water outlet quality, when the clear water flows through a gap between the mud blocking brush 4 and the arc-shaped mud blocking brush 3, soil in the clear water can be brushed down to ensure the water outlet quality, the driving motor 6 drives the screw rod 12 to rotate, the screw nut 10 descends at a constant speed, the support rod 11 drives the water collecting branch pipe 15 to rotate downwards, the downward component speed of the water collecting branch pipe 15 is gradually reduced, so that the decanting amount is also gradually reduced, the decanting speed is reduced, and the mud outlet amount is reduced at a low water level.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A rotary decanter is characterized by comprising a decanter weir trough (5), a decanter buoy (1) and a driving motor (6), wherein the upper part of the decanter weir trough (5) is movably connected with the decanter buoy (1) through a connecting rod (2), one side of the decanter weir trough (5) facing the decanter buoy (1) is provided with an inclined part, the outer side of the inclined part is fixedly provided with a mud blocking brush (4) through bolts, one side of the decanter buoy (1) facing the decanter weir trough (5) is connected with an arc-shaped mud blocking brush (3) through bolts, the lower part of the decanter weir trough (5) is uniformly communicated with four water collecting branch pipes (15), the water collecting branch pipes (15) are communicated with a water collecting header pipe (16) together, the water collecting header pipe (16) is fixedly connected with a butt joint pipe (17) through a rotating shaft pipe, and the butt joint pipe (17) is fixed on a support base (19) arranged at the bottom of a sewage pool, the other end intercommunication of butt joint pipe (17) has drain pipe (18), drain pipe (18) pass sewage pool wall (13) and external intercommunication, sewage pool wall (13) top sets up mount (8), one side of going towards the effluent water sump on mount (8) is fixed with extension board (7), set up driving motor (6) on extension board (7), the output shaft of driving motor (6) is down and be connected with lead screw (12), the bottom of lead screw (12) is rotated and is fixed on bracket (14) of sewage pool wall (13), screw (10) are established to cover on lead screw (12), fixed pin axle (9) on the outer wall of screw (10), it is connected with branch (11) to rotate on round pin axle (9), the other end and the otic placode rotation that sets up middle part on branch pipe (15) catchment of branch (11) are connected.

2. A rotary decanter according to claim 1, wherein said abutment pipe (17) has a smaller pipe diameter than the drain pipe (18).

3. A rotary decanter according to claim 1, wherein said mud-guard brush (4) and said arc-shaped plate-shaped mud-guard brush (3) are evenly provided with steel needles.