CN213407825U

CN213407825U - Secondary sedimentation tank

Info

Publication number: CN213407825U
Application number: CN202022071740.8U
Authority: CN
Inventors: 邓志辉; 顾福华; 郭浩; 张洲生
Original assignee: Shenzhen Nanfang Water Co ltd
Current assignee: Shenzhen Nanfang Water Co ltd
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2021-06-11
Anticipated expiration: 2030-09-19

Abstract

The application relates to a secondary sedimentation tank, which belongs to the field of sewage treatment and comprises a water inlet area arranged at the front part of a tank body; a water outlet area arranged at the rear part of the tank body; the sludge zone is arranged at the bottom of the tank body and is positioned between the water inlet zone and the water outlet zone; a settling zone arranged above the sludge zone; the sludge hopper is arranged at the bottom of the water inlet area and used for loading sludge; the scraper is arranged in the sludge area and the extension direction of the scraper is vertical to the length direction of the tank body; the steel wire brush roller is arranged in the tank body, is positioned between the scraper and the sludge hopper, and has the extending direction consistent with the extending direction of the scraper; the first mud scraping trolley is arranged at the top of the pool body and used for driving the scraping plate to slide; the second sludge scraping trolley is arranged at the top of the tank body and used for driving the steel wire brush roller to slide; and the driving component is arranged on one side of the second mud scraping trolley and is used for driving the steel wire brush roller to rotate. This application has the better effect to sedimentation tank bottom mud clearance effect.

Description

Secondary sedimentation tank

Technical Field

The application relates to the field of sewage treatment, in particular to a secondary sedimentation tank.

Background

The secondary sedimentation tank is positioned behind the aeration tank and is a place for carrying out sludge-water separation, which is a good guarantee for tail water discharge and sludge backflow, and the secondary sedimentation tank is widely used in the sewage treatment process, and the secondary sedimentation tank carries out sedimentation under the action of gravity by utilizing the self weight of sludge or various suspended matters in mixed liquid, and then intensively removes the sludge and various suspended matters in water, thereby achieving the purpose of solid-liquid separation and sewage purification.

At present, be equipped with the district of intaking usually in the secondary sedimentation tank, the settling zone, mud district and play pool, upper portion is the settling zone, the lower part is the mud district, there is the district of intaking in the pond front portion, there is a pool rear portion to go out the pool, it still is equipped with the sludge bucket of collecting mud to intake district bottom, the mud of bottom of the pool needs regularly to clear up, therefore, be equipped with the scraper blade in the cell body, and can drive the scraper blade through installing the mud dolly of scraping at cell body top and slide, thereby scrape the mud in the cell body and move to sludge bucket department, the completion is with outside the mud discharge pond.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that sludge at the bottom of the tank body is accumulated by sludge above in the process of sludge sedimentation, so that the sludge at the bottom of the tank body forms a hard sludge block, which is difficult to clean, and the cleaning effect by directly using the scraper is poor, which needs to be further improved.

SUMMERY OF THE UTILITY MODEL

In order to solve long-term overstock mud and be difficult to by the poor problem of clearance effect that the clearance caused, this application provides a secondary sedimentation tank.

The application provides a secondary sedimentation tank adopts following technical scheme:

a secondary sedimentation tank comprises a water inlet area arranged at the front part of a tank body; a water outlet area arranged at the rear part of the tank body; the sludge zone is arranged at the bottom of the tank body and is positioned between the water inlet zone and the water outlet zone; a settling zone arranged above the sludge zone; the sludge hopper is arranged at the bottom of the water inlet area and used for loading sludge; the scraper is arranged in the sludge area and the extension direction of the scraper is vertical to the length direction of the tank body; the steel wire brush roller is arranged in the tank body, is positioned between the scraper and the sludge hopper, and has the extending direction consistent with the extending direction of the scraper; the first mud scraping trolley is arranged at the top of the pool body and used for driving the scraping plate to slide; the second sludge scraping trolley is arranged at the top of the tank body and used for driving the steel wire brush roller to slide; and the driving component is arranged on one side of the second mud scraping trolley and is used for driving the steel wire brush roller to rotate.

Through adopting above-mentioned technical scheme, can start the second and scrape mud dolly drive steel wire brush roller and move towards sludge bucket direction, and through the drive assembly who sets up, make the steel wire brush roller roll in the cell body bottom, thereby make the overstock take place to become flexible in the mud of cell body bottom, and after certain quiescent time, rethread starts first mud dolly drive scraper blade of scraping and scrapes towards sludge bucket direction, mud is through stirring loose effect back of steel wire brush roller, the smooth and easy of scraper blade scraping has been strengthened, make the clearance effect of mud in the mud district become better.

Optionally, the driving assembly comprises a first mounting plate which is mounted on one side of the second mud scraping trolley, close to the first mud scraping trolley, and the extension direction of the first mounting plate is consistent with that of the steel wire brush roller; the connecting rod is arranged at the bottom of the first mounting plate and close to the two side walls of the tank body, and the extending direction of the connecting rod is vertical to the first mounting plate; the through hole is formed in one end, far away from the first mounting plate, of the connecting rod and is used for the end part of the steel wire brush roller to penetrate and rotate; the motor is arranged at the top of the first mounting plate and close to one side wall of the tank body, and an output shaft penetrates out of the first mounting plate; the rotating shaft is arranged at the end part of the output shaft of the motor, is positioned between the side wall of the tank body and the connecting rod, and has an extension direction vertical to the first mounting plate; the driving bevel gear is arranged at one end of the rotating shaft, which is far away from the output shaft of the motor; and a driven bevel gear which is arranged at one end of the steel wire brush roller close to the rotating shaft and is meshed with the driving bevel gear.

Through adopting above-mentioned technical scheme, open motor drive output shaft and rotate to make pivot 35 drive the drive bevel gear and rotate, drive bevel gear and then drive driven bevel gear and rotate, make the drive wire brush roller realize rotating simple structure, easily realization.

Optionally, a lifting assembly for driving the scraper to lift is arranged on one side of the first mud scraping trolley, and the lifting assembly comprises a second mounting plate mounted on one side of the first mud scraping trolley; the lifting rods are arranged at two ends of the top of the scraper and the extending direction of the lifting rods is vertical to the extending direction of the scraper; the supporting block is arranged at one end of the lifting rod, which is far away from the scraper and is vertical to the extension direction of the lifting rod; and the cylinder is arranged at the top of the second mounting plate, and the piston rod of the cylinder is connected with the bottom of the bearing block.

Through adopting above-mentioned technical scheme, thereby scrape towards the sludge bucket direction at the scraper blade and accomplish once scraping the back, the lifting unit who sets up can make when the scraper blade removes in order to resume the normal position toward the play water zone direction, reduces the mud with the cell body bottom and contacts and with the condition that mud back pushed away, scrapes the number of times of clearance when reducing the scraper blade and scraping when reciprocating.

Optionally, a baffle plate which has a predetermined inclination angle with the water flow direction is installed at the top of the scraper.

Through adopting above-mentioned technical scheme, the baffle that sets up can effectively block the mud of stirring the come-up by the motion of scraper blade, guarantees the clearance effect of scraper blade.

Optionally, a plurality of overflow ports are formed in the baffle, and mud-proof nets are installed in the overflow ports.

Through adopting above-mentioned technical scheme, the overflow mouth that sets up can Europe effectively reduce and scrape the in-process rivers and remove the production resistance to scraper blade and baffle for scraper blade and baffle remove more smoothly, and the mud net of preventing that sets up can strengthen the effect that blocks of mud in the rivers under the effect that does not influence the overflow mouth.

Optionally, the drainage zone is close to settling zone one side and installs out the flotation tank, install the floating plate between the lifter and be located the baffle top.

Through adopting above-mentioned technical scheme, the play flotation tank that sets up can utilize the rivers direction to make the floater of floating on the effluent water sump surface flow in the same direction as rivers in the flotation tank in drainage zone one side, and the removal kickboard that sets up then can be under the drive of first mud dolly of scraping, and the make full use of scraper blade promotes the floater to a flotation tank in towards the time that the play flotation tank removed for to the clearance speed of floater, further increase the practicality of this application.

Optionally, a plurality of floating inserting rods with extending directions perpendicular to the extending direction of the floating removing plate are installed at one side of the bottom of the floating removing plate facing the water outlet area.

Through adopting above-mentioned technical scheme, the floater can be restricted to inserting between the floating rod to the floating rod of inserting that sets up, reduces the floater and from the condition of going the kickboard bottom and passing to the increase is to the clearance effect of floater.

Optionally, an inclined surface facing the sludge hopper is arranged on one side, facing the sludge hopper, of the bottom of the scraper.

Through adopting above-mentioned technical scheme, the inclined plane of setting can strengthen the scraper blade and to the effect of scraping of mud to the reinforcing is to the clearance effect of cell body bottom.

In summary, the present application includes at least one of the following beneficial technical effects:

the steel wire brush roller that sets up can effectively be not hard up to the mud of cell body bottom, and the drive assembly who sets up then drives the steel wire brush roller and rotates, further strengthens the not hard up effect to the mud of cell body bottom to scrape the driving action of mud dolly at the second under, carry out not hard up on a large scale to the mud of cell body bottom, make then that the scraper blade is more smooth and easy when scraping, the clearance effect is better.

Drawings

Fig. 1 is a schematic cross-sectional view of the overall structure of an embodiment of the present application.

Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.

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

Description of reference numerals: 1. a tank body; 10. a water inlet area; 11. a water outlet area; 12. a sludge zone; 13. a settling zone; 14. a sludge hopper; 15. perforating the wall; 2. a squeegee; 20. a first mud scraping trolley; 21. a second mounting plate; 22. a lifting rod; 23. a bearing block; 24. a cylinder; 3. a wire brush roller; 30. a second mud scraping trolley; 31. a first mounting plate; 32. a connecting rod; 34. a motor; 35. a rotating shaft; 36. a drive bevel gear; 37. a driven bevel gear; 4. a baffle plate; 40. an overflow port; 41. a mud-proof mesh; 5. discharging from the floating tank; 50. removing the floating plate; 51. inserting a floating rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a secondary sedimentation tank. Referring to fig. 1, the sedimentation tank includes a tank body 1 and a sludge hopper 14, wherein the tank body 1 includes four regions, which are a water inlet region 10 disposed at the front portion of the tank body 1, a water outlet region 11 disposed at the rear portion of the tank body 1, a sludge region 12 disposed at the bottom of the tank body 1 and located between the water inlet region 10 and the water outlet region 11, and a sedimentation region 13 disposed above the sludge region 12, a water inlet is disposed at a side of the tank body 1 close to the water inlet region 10, a perforated wall 15 is disposed between the water inlet region 10 and the sedimentation region 13 so as to allow water to be uniformly distributed to enter the sedimentation region 13, a water outlet channel is disposed between the water outlet region 11 and the sedimentation region 13, and the sludge hopper 14 is disposed at the bottom of the water inlet region 10 and located between.

Raw water after adding the coagulant flows into the cell body 1, the cross-section of intaking along the district 10 of intaking evenly shunts and gets into the settling zone 13, then flow to play water zone 11 slowly, the granule of aquatic sinks in the settling zone 13 of cell body 1 bottom, need regularly with accumulational mud discharge pond outside, therefore, be provided with scraper blade 2 in cell body 1 bottom settling zone 13, the extending direction perpendicular to cell body 1's length direction of scraper blade 2, and simultaneously, install first mud dolly 20 of scraping at cell body 1 top, the both ends sliding connection of first mud dolly 20 in cell body 1 length direction's both sides wall, first mud dolly 20 of scraping can drive scraper blade 2 and carry out reciprocating sliding. In addition, in order to increase the cleaning effect of the scraper 2, the bottom surface of the scraper 2 facing the sludge hopper 14 is an inclined surface, so that the scraper 2 can effectively scrape off the sludge when scraping the sludge.

Because scraper blade 2 when clearing up mud, there is the mud of 1 bottom of cell body to be difficult to by the clean up problem, need to carry out not hard up processing to mud before scraping mud, consequently, in this embodiment, refer to figure 1, settling zone 13 is provided with steel wire brush roller 3 in 1 bottom of cell body, steel wire brush roller 3 is located between scraper blade 2 and the sludge bucket 14, steel wire brush roller 3's extending direction is unanimous with 2 extending direction of scraper blade, and simultaneously, install the second in 1 top both sides wall bottom of cell body and scrape mud dolly 30, the second is scraped mud dolly 30 and can be driven steel wire brush roller 3 and carry out reciprocating sliding.

Referring to fig. 2 and 3, in order to make the loose sludge effect of the steel wire brush roller 3 better, a driving assembly is arranged on one side of the second sludge scraping trolley 30, the driving assembly can drive the steel wire brush roller 3 to rotate, in this embodiment, the driving assembly comprises a first mounting plate 31 and a motor 34, wherein the first mounting plate 31 is mounted on one side of the second sludge scraping trolley 30 close to the first sludge scraping trolley 20, the extending direction of the first mounting plate 31 is consistent with the extending direction of the steel wire brush roller 3, a connecting rod 32 is mounted at the bottom of the first mounting plate 31 close to two side walls of the tank body 1, the extending direction of the connecting rod 32 is perpendicular to the first mounting plate 31, one end of the connecting rod 32, far away from the first mounting plate 31, is provided with a through hole, and the.

In addition, motor 34 is installed and is close to 1 lateral wall department of cell body at first mounting panel 31 top, the trompil has still been seted up on first mounting panel 31, the trompil can supply motor 34 output shaft to alternate, and install pivot 35 at motor 34 output shaft tip, the extending direction of pivot 35 is mutually perpendicular with first mounting panel 31, pivot 35 is located between 1 lateral wall of cell body and the connecting rod 32, keep away from motor 34 output shaft one end at pivot 35 and install drive bevel gear 36, and simultaneously, be close to pivot 35 one end at steel wire brush roller 3 and install driven bevel gear 37, driven bevel gear 37 and drive bevel gear 36 intermeshing.

The output shaft is driven to rotate by turning on the motor 34, so that the rotating shaft 35 drives the driving bevel gear 36 to rotate, and further the driving bevel gear 36 drives the driven bevel gear 37 to rotate, so that the wire brush roller 3 rotates.

Referring to fig. 1 and 2, after the steel wire brush roller 3 preliminarily loosens the sludge, the sludge at the bottom of the tank body 1 is liable to become turbid, and therefore needs to be kept still for a certain time to start the first sludge scraping trolley 20 to drive the scraper 2 to move towards the sludge hopper 14, and the sludge is reduced by the movement of the scraper 2, and the sludge is stirred and floated, therefore, the baffle 4 is installed at the top of the scraper 2, the baffle 4 and the water flow direction form a predetermined inclination angle, in the embodiment, the inclination angle of the baffle 4 is approximately 30-45 degrees, the baffle 4 is located in the settling zone 13, the baffle 4 is further provided with a plurality of overflow ports 40, the overflow ports 40 are internally provided with mud-proof nets 41, and the arrangement of the mud-proof nets 41 can effectively reduce the situation that the scraping process water flow generates resistance to the sliding of the scraper 2 and the baffle 4.

Referring to fig. 1 and 2, in addition, when the scraper 2 is moved back after the first scraper carriage 20 drives the scraper 2 to scrape the sludge toward the sludge hopper 14, the residual sludge at the bottom of the tank body 1 is easy to scrape in the opposite direction, and the water outlet area 11 is not provided with a sludge hopper 14 generally, therefore, when the scraper 2 moves towards the water outlet area 11, the scraper 2 needs to be lifted, the condition that the scraper 2 rubs sludge at the bottom of the tank body 1 is reduced, the lifting of the scraper 2 needs to be realized by arranging a lifting component at one side of the first mud scraping trolley 20, in this embodiment, the lifting assembly includes a second mounting plate 21, a lifting rod 22, a holding block 23 and a cylinder 24, wherein, the second mounting panel 21 is installed in first mud scraping dolly 20 one side, and two lifter 22 one end are installed in 2 top both ends angle departments of scraper blade, and the other end is connected with bearing piece 23, and the extending direction of lifter 22 is perpendicular to the extending direction of scraper blade 2.

Simultaneously, cylinder 24 installs at second mounting panel 21 top, and cylinder 24 is located the bottom of bearing block 23, and the piston rod of cylinder 24 is connected with the bottom of bearing block 23, can drive the piston rod through starting cylinder 24 and drive bearing block 23 upward movement to drive lifter 22 and scraper blade 2 and carry out certain lifting, and then when making scraper blade 2 move towards water outlet zone 11, reduce the condition that scraper blade 2 returned and scrape mud.

In addition, a plurality of floating objects are arranged on the top of the sedimentation tank body 1, and referring to fig. 1 and 2, in the embodiment, the outlet area 11 is provided with the outlet tank 5 near the sedimentation area 13, and the floating objects on the surface of the sewage can be guided into the outlet tank 5 by using water flow.

Meanwhile, when the scraping plate 2 moves towards the water outlet area 11, the deflashing plate 50 is arranged between the lifting rods 22, the deflashing plate 50 is positioned above the baffle 4, and the bottom of one side of the floating removing plate 50 facing the drainage area is uniformly provided with a plurality of floating inserting rods 51, the extending direction of the floating inserting rods 51 is vertical to the extending direction of the floating removing plate 50, the floating removing plate 50 can be lifted by the scraper 2, so that the part of the floating removing plate 50 is exposed out of the surface of the sewage, the floating inserting rods 51 are arranged below the water surface, under the driving action of the first mud scraping trolley 20, the mud scraping trolley slides towards the floating outlet groove 5, the floating inserting rods 51 can conveniently limit floating objects floating on the surface of the sewage between the floating inserting rods 51, and drive the floater and toward going out the removal of buoyancy tank 5 department, insert out in the buoyancy tank 5 until inserting the floating pole 51, make then the floater fall into out the buoyancy tank 5, accomplish the clearance to the floater for clear up floating speed, further strengthen the practicality of this application.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A secondary sedimentation tank which is characterized in that: comprises a water inlet area (10) arranged at the front part of a tank body (1); a water outlet area (11) arranged at the rear part of the tank body (1); a sludge zone (12) which is arranged at the bottom of the tank body (1) and is positioned between the water inlet zone (10) and the water outlet zone (11); a settling zone (13) arranged above the sludge zone (12); a sludge hopper (14) arranged at the bottom of the water inlet area (10) and used for loading sludge; the scraper (2) is arranged in the sludge zone (12) and the extension direction of the scraper is vertical to the length direction of the tank body (1); the steel wire brush roller (3) is arranged in the tank body (1), is positioned between the scraper (2) and the sludge hopper (14), and has the extending direction consistent with the extending direction of the scraper (2); the first mud scraping trolley (20) is arranged at the top of the tank body (1) and is used for driving the scraping plate (2) to slide; a second mud scraping trolley (30) which is arranged at the top of the tank body (1) and is used for driving the steel wire brush roller (3) to slide; and the driving component is arranged on one side of the second mud scraping trolley (30) and is used for driving the steel wire brush roller (3) to rotate.

2. A secondary sedimentation tank as claimed in claim 1, wherein: the driving assembly comprises a first mounting plate (31) which is arranged on one side of the second mud scraping trolley (30) close to the first mud scraping trolley (20) and the extension direction of which is consistent with the extension direction of the steel wire brush roller (3); a connecting rod (32) which is arranged at the bottom of the first mounting plate (31) and close to the two side walls of the tank body (1) and the extending direction of which is vertical to the first mounting plate (31); the through hole is formed in one end, far away from the first mounting plate (31), of the connecting rod (32) and is used for inserting and rotating the end part of the steel wire brush roller (3); a motor (34) which is arranged at the top of the first mounting plate (31) and close to one side wall of the tank body (1) and the output shaft of which penetrates out of the first mounting plate (31); a rotating shaft (35) which is arranged at the end part of an output shaft of the motor (34), is positioned between the side wall of the tank body (1) and the connecting rod (32), and has an extension direction vertical to the first mounting plate (31); a driving bevel gear (36) arranged at one end of the rotating shaft (35) far away from the output shaft of the motor (34); and a driven bevel gear (37) which is arranged at one end of the steel wire brush roller (3) close to the rotating shaft (35) and is meshed with the driving bevel gear (36).

3. A secondary sedimentation tank as claimed in claim 1, wherein: a lifting component for driving the scraper (2) to lift is arranged on one side of the first mud scraping trolley (20), and the lifting component comprises a second mounting plate (21) mounted on one side of the first mud scraping trolley (20); the lifting rods (22) are arranged at two ends of the top of the scraper (2) and the extending direction of the lifting rods is vertical to the extending direction of the scraper (2); the bearing block (23) is arranged at one end of the lifting rod (22) far away from the scraper (2) and is vertical to the extending direction of the lifting rod (22); and the air cylinder (24) is arranged at the top of the second mounting plate (21) and the piston rod is connected with the bottom of the bearing block (23).

4. A secondary sedimentation tank as claimed in claim 3, wherein: and a baffle (4) which has a preset inclination angle with the water flow direction is arranged at the top of the scraper (2).

5. A secondary sedimentation tank as claimed in claim 4, wherein: a plurality of overflow ports (40) are formed in the baffle (4), and mud-proof nets (41) are installed in the overflow ports (40).

6. A secondary sedimentation tank as claimed in claim 4, wherein: go out water zone (11) and install out floating groove (5) near settling zone (13) one side, install except that kickboard (50) between lifter (22) and be located baffle (4) top.

7. A secondary sedimentation tank as claimed in claim 6, wherein: and a plurality of floating inserting rods (51) with the extending direction vertical to the extending direction of the floating removing plate (50) are arranged at the bottom of the floating removing plate (50) towards one side of the water outlet area (11).

8. A secondary sedimentation tank as claimed in claim 1, wherein: an inclined surface facing the sludge hopper (14) is arranged on one side of the bottom of the scraper (2) facing the sludge hopper (14).