CN110721499A

CN110721499A - Reverse flow inclined tube sedimentation tank

Info

Publication number: CN110721499A
Application number: CN201911203348.XA
Authority: CN
Inventors: 李泓
Original assignee: Gansu Hongtai Environmental Protection Engineering Co Ltd
Current assignee: Gansu Hongtai Environmental Protection Engineering Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-01-24

Abstract

The invention discloses a reverse flow inclined tube sedimentation tank, which comprises a sedimentation tank body, wherein a sludge settling area and an inclined tube sedimentation area which are communicated are sequentially arranged in the sedimentation tank body from bottom to top, the device comprises a water collecting area, wherein a washing device is arranged in the water collecting area, a plurality of sludge settling pits are arranged on a rectangular array at the bottom of each sludge settling area, the edges of two adjacent sludge settling pits are connected, each sludge settling pit comprises an arc-shaped ramp and a sludge collecting area arranged at the bottom of the arc-shaped ramp, the gradient of the arc-shaped ramp gradually decreases along the direction close to the sludge collecting area, a sludge discharge pipeline is arranged above each sludge settling pit and comprises a plurality of groups of sludge discharge main pipes which are arranged above the sludge settling pits in parallel along the length direction of a sedimentation tank body, sludge discharge branch pipes which correspond to the sludge settling pits one by one are arranged on the sludge discharge main pipes, sludge suction nozzles are arranged at the sludge inlet ends of the sludge discharge branch pipes and abut against the inner bottom of the sludge collecting area, one end of each sludge discharge pipeline extends out of the sedimentation tank body, and a; the invention improves the efficiency and effect of sludge discharge and ensures the effect of sewage treatment.

Description

Reverse flow inclined tube sedimentation tank

Technical Field

The invention relates to the technical field of domestic and industrial water supply and sewage treatment, in particular to a reverse flow inclined tube sedimentation tank.

Background

The sedimentation tank is a structure for removing suspended matters in water by using sedimentation. Sedimentation tanks are widely used in wastewater treatment.

The inclined tube sedimentation tank is a sedimentation tank with an inclined tube arranged in a sedimentation area, and is divided into three different separation modes of reverse (different) flow, cocurrent flow and lateral flow according to the mutual movement direction of the inclined tube sedimentation tank, each two parallel inclined plates (or in the parallel tubes) are equivalent to a very shallow sedimentation tank, and the inclined tube sedimentation tank has the advantages that ① utilizes the laminar flow principle, the treatment capacity of the sedimentation tank is improved, ② shortens the sedimentation distance of particles, so that the sedimentation time is shortened, and ③ increases the sedimentation area of the sedimentation tank, so that the treatment efficiency is improved.

When current reverse flow sedimentation tank is used, the collection mud of pipe chute becomes the difficult problem of water treatment trade operation, the section of crossing water of the reverse flow pipe chute behind the collection mud reduces, make out water turbidity rise, must empty and adopt artifical handheld water pipe to wash piece by piece, it is very inconvenient to have the washing, the cleaning efficiency is low, the wasting of resources is serious, the mud can deposit in the sedimentation tank bottom after the washing completion, at this moment need discharge the mud of bottom through the dredge pump, but current sedimentation tank is when discharging bottom mud, lead to mud to splash because of the flow of water easily, make collection mud and subsequent rivers contact of treating the sediment, cause secondary collection mud in the pipe chute, influence mud exhaust efficiency and mud exhaust effect.

Disclosure of Invention

The invention aims to: in order to solve the problem that the sludge splashing is easily caused by the flowing of water when the sludge at the bottom is discharged by the conventional sedimentation tank, the efficiency of the sludge discharge and the effect of the sludge discharge are influenced, the reverse-flow inclined-tube sedimentation tank is specially provided.

The technical scheme adopted by the invention is as follows:

a reverse flow inclined tube sedimentation tank comprises a sedimentation tank body, wherein a sludge settling area, an inclined tube sedimentation area and a water collecting area which are communicated with each other are sequentially arranged in the sedimentation tank body from bottom to top, a flushing device is arranged in the water collecting area, a bottom rectangular array of the sludge settling area is provided with a plurality of sludge settling pits, the edges of two adjacent sludge settling pits are connected, each sludge settling pit comprises a downward arc-shaped ramp and a downward sunken sludge collecting area arranged at the bottom of the arc-shaped ramp, the gradient of the arc-shaped ramp gradually decreases along the direction close to the sludge collecting area, a sludge discharge pipeline is arranged above each sludge settling pit and comprises a plurality of groups of sludge discharge main pipes which are arranged above the sludge settling pits in parallel along the length direction of the sedimentation tank body, sludge discharge branch pipes which correspond to the sludge settling pits one by one to one are arranged on the sludge discharge main pipes, sludge suction nozzles are arranged at the sludge inlet ends of the sludge discharge branch pipes and abut against the inner bottom of the sludge collecting area, one end of the sludge discharge pipeline extends out of the sedimentation tank body, and a sludge discharge pump is arranged at the end part of the end.

In the above scheme, washing unit includes the braced frame that length and sedimentation tank body's width are the same, braced frame's below is equipped with the washing house steward, the last U type flushing pipe that is equipped with the multiunit inversion along the length direction who washs house steward of washing house steward, the one end of U type flushing pipe is equipped with small-size immersible pump, the middle section of U type flushing pipe is equipped with the manual ball valve that is used for adjusting pressure, the other end intercommunication washing house steward of U type flushing pipe, the both sides of washing house steward are equipped with the washing branch pipe, the washing branch pipe passes through connecting pipe intercommunication washing house steward, the lower extreme of washing branch pipe is equipped with the low pressure and washs the shower nozzle, braced frame is last to be equipped with

In the above scheme, moving mechanism is including setting up the variable frequency gear motor at braced frame up end both ends, be equipped with sprocket one on variable frequency gear motor's the output shaft, braced frame's lower terminal surface both ends are equipped with the action wheel, be equipped with main slide rail on the length direction of following the sedimentation tank body on the wall of the internal left and right sides of sedimentation tank of top in water catch area, the action wheel can be along the length direction free roll of main slide rail on main slide rail, the action wheel center is equipped with the pivot, pivot outer end fixedly connected with sprocket two, link through the chain between sprocket one and the sprocket two.

In the scheme, a plurality of groups of driven wheels are uniformly arranged below the middle section of the supporting frame, a plurality of groups of auxiliary slide rails are arranged in the sedimentation tank body above the water collection area along the length direction of the sedimentation tank body, the auxiliary slide rails are the same in length as the main slide rails and are located on the same plane with the main slide rails, and the driven wheels are in one-to-one correspondence with the auxiliary slide rails and can freely roll on the auxiliary slide rails along the length direction of the auxiliary slide rails.

In the scheme, the low-pressure cleaning spray heads at the lower parts of the two groups of cleaning branch pipes are arranged along the axial direction of the cleaning branch pipes in a staggered manner.

In the scheme, the middle section of the U-shaped flushing pipe extends out of the water surface of the sedimentation tank, and a pressure gauge is arranged on one side of the position of the manual ball valve.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, through the arrangement of the sludge settling pit, sludge can be settled into the sludge settling pit, the sludge is slowly drawn into the sludge collection areas by the arc-shaped ramp with gradually-reduced gradient, and the sludge in each sludge collection area is timely discharged through the sludge discharge branch pipes, so that the problems that the sludge is easily splashed due to the flowing of water when the bottom sludge is discharged in the existing sedimentation tank, the sludge is contacted with the subsequent water flow to be settled, the secondary sludge collection in the inclined pipes is caused, the sludge discharge efficiency and the sludge discharge effect are influenced are solved, the sludge discharge efficiency and effect are improved, and the sewage treatment effect is ensured.

2. The invention sets the flushing device as a U-shaped flushing pipe with one end connected with a submersible pump and the other end connected with a main cleaning pipe, the main cleaning pipe is connected with a branch cleaning pipe, a low-pressure cleaning nozzle is arranged below the branch cleaning pipe, and simultaneously the flushing device is connected with a moving mechanism, when the inclined pipe is cleaned, the water pump is started and the flushing device moves along the length direction of the sedimentation tank body, water flow jets out low-pressure jet flow through the low-pressure nozzle below the branch cleaning pipe to disturb sludge collection in the inclined pipe, so that the sludge collection in the inclined pipe slides down to a sludge settling area, after the flushing device reaches one end of the sedimentation tank, the moving device stops and controls the water pump to stop, after the sludge is settled for a period of time, the sliding sludge collection is settled to the bottom of the tank, after a period of time, the water pump is started again to feed water, the moving device controls, after the circulation period that the completion was set for, stop washing unit and moving mechanism completely, the completion is washd the collection mud in the pipe chute, arrange the washing pipeline along the full width of pond wide direction simultaneously, make accomplish after reciprocal a cycle and sweep the washing to the once full area of pipe chute, the automation of having realized collecting mud in the pipe chute is washed, need not empty the sedimentation tank simultaneously, can realize the clearance to mud when the sedimentation tank normally works, can only adopt artifical handheld water pipe to wash piece by piece after emptying the sedimentation tank after having solved current reverse flow sedimentation tank pipe collection mud, cause and wash very inconveniently, the cleaning efficiency is low, the serious problem of wasting of resources, very big improvement is to the washing efficiency of collection mud in the pipe chute, it is convenient to wash, a large amount of manpower and materials resources have been practiced thrift simultaneously.

3. According to the invention, the moving mechanism is set in a mode that the variable-frequency speed reduction motor drives the driving wheel to roll back and forth through the chain wheel and chain structure, two groups of slide rails are arranged at the upper end of the sedimentation tank along the length direction, so that the flushing device can walk back and forth in a reciprocating manner, and the variable-frequency speed reduction motor is controlled to work in a mode of setting the PLC controller, so that the flushing device can be automatically controlled to perform full-area sweeping and washing on the inclined tube, the flushing efficiency is improved, and a large amount of manpower and material resources are saved.

4. According to the invention, by arranging the driven wheel and arranging the plurality of groups of auxiliary rails in the length direction of the sedimentation tank, the whole device is supported, the stability of the whole device is improved, and the use safety is ensured.

5. According to the invention, the low-pressure cleaning nozzles at the lower parts of the two groups of cleaning branch pipes are arranged in a staggered manner along the axial direction of the cleaning branch pipes, so that the coverage area of low-pressure jet flow is increased, the cleaning efficiency of sludge collected in the inclined pipe is improved, and the cleaning effect is ensured.

6. According to the invention, the water pressure is monitored through the arrangement of the pressure gauge, so that the problem that water in the sedimentation tank is stirred to be turbid due to overlarge water pressure is avoided, and the cleaning effect is ensured.

Drawings

The invention will now be described by way of example and with reference to the accompanying drawings in which:

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

the names of the parts corresponding to the reference numbers are as follows: 1-sedimentation tank body, 2-flushing device, 3-moving mechanism, 4-sludge discharge pipeline, 5-sludge discharge pump, 11-water collection area, 12-inclined tube sedimentation area, 13-sludge settling area, 14-main slide rail, 15-auxiliary slide rail, 16-sludge settling pit, 21-support frame, 22-cleaning main pipe, 23-U type flushing pipe, 24-small submersible pump, 25-manual ball valve, 26-cleaning branch pipe, 27-pressure gauge, 31-variable frequency speed reducing motor, 32-chain wheel I, 33-driving wheel, 34-rotating shaft, 35-chain wheel II, 36-chain, 37-driven wheel, 41-sludge discharge main pipe, 42-sludge discharge branch pipe, 43-sludge suction nozzle, 161-arc ramp and 162-sludge collection area.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Example 1

The utility model provides a reverse flow pipe chute sedimentation tank, includes sedimentation tank body 1, by lower supreme heavy mud district 13, the pipe chute settling zone 12, the water catch zone 11 that are equipped with the intercommunication in proper order in the sedimentation tank body 1, its characterized in that: a washing device 2 is arranged in the water collecting area 11, a plurality of mud settling pits 16 are arranged at the bottom of the mud settling area 13 in a rectangular array, the edges of two adjacent mud settling pits 16 are connected, the mud pit 16 comprises a downward arc-shaped ramp 161 and a downward sunken mud collection area 162 arranged at the bottom of the arc-shaped ramp 161, the slope of the arc-shaped ramp 161 gradually decreases along the direction close to the mud collecting area 162, a mud discharging pipeline 4 is arranged above the mud pit 16, the sludge discharge pipeline 4 comprises a plurality of groups of sludge discharge main pipes 41 which are arranged above the sludge settling pit 16 in parallel along the length direction of the sedimentation tank body 1, the mud discharging main pipe 41 is provided with mud discharging branch pipes 42 which are in one-to-one correspondence with the mud settling pits 16, the mud inlet ends of the mud discharging branch pipes 42 are provided with mud suction nozzles 43, the mud suction nozzle 43 is abutted against the inner bottom of the mud collection area 16, one end of the mud discharge pipeline 4 extends out of the sedimentation tank body 1, and a mud discharge pump 5 is arranged at the end part of the end.

Example 2

On the basis of embodiment 1, the washing device 2 comprises a supporting frame 21 with the length equal to the width of the sedimentation tank body 1, a washing main pipe 22 is arranged below the supporting frame 21, a plurality of groups of inverted U-shaped washing pipes 23 are arranged on the washing main pipe 22 along the length direction of the washing main pipe 22, one end of each U-shaped washing pipe 23 is provided with a small submersible pump 24, the middle section of each U-shaped washing pipe 23 is provided with a manual ball valve 25 for adjusting pressure, the other end of each U-shaped washing pipe 23 is communicated with the washing main pipe 22, washing branch pipes 26 are arranged on two sides of the washing main pipe 22, the washing branch pipes 26 are communicated with the washing main pipe 22 through connecting pipes, the lower ends of the washing branch pipes 26 are provided with low-pressure washing nozzles, and the supporting frame 21 is provided with a moving mechanism 3 for moving the washing device 2 back and forth along

Example 3

On embodiment 1 or 2 basis, moving mechanism 3 is including setting up the variable frequency gear motor 31 at braced frame 21 up end both ends, be equipped with sprocket one 32 on variable frequency gear motor 31's the output shaft, braced frame 21's lower terminal surface both ends are equipped with action wheel 33, be equipped with main slide rail 14 on the length direction along sedimentation tank body 1 on the wall of the left and right sides in the sedimentation tank body 1 of the top of catchment area 11, action wheel 33 can be on main slide rail 14 along the length direction free roll of main slide rail 14, action wheel 33 center is equipped with pivot 34, pivot 34 outer end fixedly connected with sprocket two 35, link through chain 36 between sprocket one 32 and the sprocket two 35.

Example 4

On the basis of the above embodiment, a plurality of groups of driven wheels 37 are uniformly arranged below the middle section of the supporting frame 21, a plurality of groups of auxiliary slide rails 15 are arranged in the sedimentation tank body 1 above the water collection area 11 along the length direction of the sedimentation tank body 1, the auxiliary slide rails 15 have the same length as the main slide rails 14 and are located on the same plane as the main slide rails 14, and the driven wheels 37 are in one-to-one correspondence with the auxiliary slide rails 15 and can freely roll on the auxiliary slide rails 15 along the length direction of the auxiliary slide rails 15.

Example 5

On the basis of the above embodiment, the low-pressure cleaning nozzles at the lower parts of the two sets of cleaning branch pipes 26 are arranged along the axial direction of the cleaning branch pipes 26 in a staggered manner.

Example 6

On the basis of the above embodiment, the middle section of the U-shaped flushing pipe 23 extends out of the water surface of the sedimentation tank, and a pressure gauge 27 is arranged on one side of the position of the manual ball valve 25.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. The utility model provides a reverse flow pipe chute sedimentation tank, includes sedimentation tank body (1), by supreme heavy mud district (13), pipe chute settling zone (12), the water catch bowl (11) that are equipped with the intercommunication in proper order down in sedimentation tank body (1), its characterized in that: the sludge treatment device is characterized in that a washing device (2) is arranged in the water collecting area (11), a plurality of sludge settling pits (16) are arranged in a bottom rectangular array of the sludge settling area (13), the edges of two adjacent sludge settling pits (16) are connected, each sludge settling pit (16) comprises a downward arc-shaped ramp (161) and a sludge collecting area (162) which is arranged at the bottom of the arc-shaped ramp (161) and is sunken downwards, the gradient of each arc-shaped ramp (161) is gradually reduced along the direction close to the sludge collecting area (162), sludge discharge pipelines (4) are arranged above the sludge settling pits (16), each sludge discharge pipeline (4) comprises a plurality of groups of sludge discharge main pipes (41) which are arranged above the sludge settling pits (16) in parallel along the length direction of the sedimentation tank body (1), sludge discharge branch pipes (42) which correspond to the sludge settling pits (16) one by one are arranged on the sludge discharge main pipes (41), and sludge suction nozzles (43) are arranged at the sludge inlet ends of the sludge discharge branch, the mud suction nozzle (43) is abutted against the inner bottom of the mud collection area (16), one end of the mud discharge pipeline (4) extends out of the sedimentation tank body (1) and a mud discharge pump (5) is arranged at the end part of the end.

2. A reverse flow tube settler according to claim 1, wherein: washing unit (2) include length and braced frame (21) that the width of sedimentation tank body (1) is the same, braced frame's (21) below is equipped with washs house steward (22), wash house steward (22) and go up along wasing U type wash pipe (23) that the length direction of house steward (22) is equipped with the multiunit inversion, the one end of U type wash pipe (23) is equipped with small-size immersible pump (24), the middle section of U type wash pipe (23) is equipped with manual ball valve (25) that are used for adjusting pressure, the other end intercommunication of U type wash pipe (23) washs house steward (22), the both sides of wasing house steward (22) are equipped with washs branch pipe (26), wash branch pipe (26) through connecting pipe intercommunication washing house steward (22), the lower extreme of wasing branch pipe (26) is equipped with the low pressure and washs the shower nozzle, be equipped with on braced frame (21) and be used for with washing unit ( ).

3. A reverse flow tube settler according to claim 2, wherein: moving mechanism (3) are including setting up frequency conversion gear motor (31) at braced frame (21) up end both ends, be equipped with sprocket (32) on the output shaft of frequency conversion gear motor (31), the lower terminal surface both ends of braced frame (21) are equipped with action wheel (33), be equipped with main slide rail (14) on the length direction of following sedimentation tank body (1) on the wall of left and right sides in sedimentation tank body (1) of the top of catchment area (11), action wheel (33) can be on main slide rail (14) along the length direction free roll of main slide rail (14), action wheel (33) center is equipped with pivot (34), pivot (34) outer end fixedly connected with sprocket two (35), link through chain (36) between sprocket (32) and the sprocket two (35).

4. A reverse flow tube settler according to claim 3, wherein: the even multiunit that is equipped with in middle section below of braced frame (21) follows driving wheel (37), the length direction along sedimentation tank body (1) is equipped with vice slide rail (15) of multiunit in sedimentation tank body (1) of the top of catchment area (11), vice slide rail (15) are the same with main slide rail (14) length and lie in the coplanar with main slide rail (14), follow driving wheel (37) and vice slide rail (15) one-to-one and can follow the length direction free roll of vice slide rail (15) on vice slide rail (15).

5. A reverse flow tube settler according to claim 2, wherein: the low-pressure cleaning spray heads at the lower parts of the two groups of cleaning branch pipes (26) are arranged along the axial direction of the cleaning branch pipes (26) in a staggered way.

6. A reverse flow tube settler according to claim 2, wherein: the middle section of the U-shaped flushing pipe (23) extends out of the water surface of the sedimentation tank, and a pressure gauge (27) is arranged on one side of the position of the manual ball valve (25).