CN217868453U

CN217868453U - Dissolved air flotation deslagging equipment

Info

Publication number: CN217868453U
Application number: CN202222197893.6U
Authority: CN
Inventors: 王保玉; 王昭峰; 张华�; 马少杰
Original assignee: Mbp Environmental Engineering Co ltd
Current assignee: Mbp Environmental Engineering Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-11-22
Anticipated expiration: 2032-08-19

Abstract

The utility model relates to a sediment equipment is arranged in dissolved air flotation relates to sewage treatment device's technical field, and it includes the air supporting machine, the air supporting machine includes the air supporting pipe, locates the dissolved air compressor machine on the air supporting pipe and be used for handling the box body of sewage, the box body is separated for intake pool, separating tank and effluent pond along the treatment direction of sewage in proper order by first baffle and second baffle, the one end of air supporting pipe with the intake pool is linked together and the other end is linked together with the separating tank, be equipped with the blowdown pipe on the separating tank and be used for carrying out the air feed spare of air feed to the blowdown pipe, the blowdown pipe is laid towards the direction of effluent pond, still be equipped with on the effluent pond and be used for carrying out the collection sediment subassembly of collection to dross. This application has thereby reduce the effect that the processing efficiency of dross promotes sewage in the adnexion on the scraper blade.

Description

Dissolved air floatation slag discharging equipment

Technical Field

The application relates to the technical field of sewage treatment equipment, in particular to dissolved air floatation slag discharging equipment.

Background

The sewage treatment is a process for removing pollutants from urban wastewater, mainly comprising domestic sewage and some industrial wastewater, the commonly used treatment steps of the sewage at present are firstly to add a flocculating agent into the sewage to enable the sewage to generate flocculation reaction, then to carry out solid-liquid separation treatment on the sewage through an air flotation machine, the air flotation machine is a water treatment device which generates a large amount of micro bubbles in water by an air dissolving system to enable air to be attached to flocculating particles in the sewage in a highly dispersed micro bubble form to form suspended matters, so that the density is lower than the water state, and the flocculating particles float on the water surface by utilizing the buoyancy principle, thereby realizing the solid-liquid separation.

A chinese patent document with application number 202220789152.4 discloses a non-water-soluble pollutant separator, which comprises an air flotation machine, wherein a chain is arranged at the top of the air flotation machine, a moving block is fixedly connected to the inner side of the chain, a fixing strip is fixedly connected to the top of the moving block, a fixing groove is formed in the fixing strip, a scraper matched with the fixing groove is arranged in the fixing strip, fixing blocks are fixedly connected to both sides of the fixing strip, a moving groove is formed in the fixing block, a fixing rod is arranged in the moving groove, limiting grooves matched with the fixing rod are formed in the bottoms of both sides of the scraper, a baffle is fixedly connected to the surface of the fixing rod, a spring is fixedly connected to the outer side of the baffle, and the outer side of the spring is fixedly connected to the outer side of the inner wall of the moving groove; when sewage is treated, the air flotation machine floats flocculates air into suspended matters to be suspended on the surface of the sewage, and the scraper is driven by the chain to circularly scrape the suspended matters on the surface of the sewage along the moving direction of the chain.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when scraping off the suspended solid of sewage through above-mentioned device, the suspended solid is attached to on the scraper blade easily, and along with the circulation transmission of chain, when the scraper blade circulation was scraped, suspended solid on the scraper blade can be transported once more and form the dross in the air supporting machine, repeatedly strikes off, leads to the treatment effeciency of sewage low.

SUMMERY OF THE UTILITY MODEL

Thereby in order to reduce the processing efficiency that dross adheres to on the scraper blade and promotes sewage, this application provides a dissolved air flotation slag discharging equipment.

The application provides a dissolve gas air supporting sediment equipment adopts following technical scheme:

the utility model provides a sediment equipment is arranged in dissolved air flotation, includes the air supporting machine, the air supporting machine includes the air supporting pipe, locates the dissolved air compressor machine on the air supporting pipe and is used for handling the box body of sewage, be equipped with first baffle and second baffle in the box body, first baffle is laid with the processing direction interval parallel of second baffle perpendicular to sewage, the box body is separated for intake chamber, separating tank and effluent pond along the processing direction of sewage in proper order by first baffle and second baffle, the one end of air supporting pipe with the intake chamber is linked together and the other end is linked together with the separating tank, be equipped with on the separating tank and blow dirty pipe and be used for carrying out the air feed spare of air feed to blow dirty pipe, blow dirty pipe and lay towards the direction slope of effluent pond, one side that is close to the effluent pond in the separating tank is equipped with the collection sediment pond, still be equipped with on the collection sediment pond and be used for carrying out the collection sediment subassembly of collecting to the dross.

By adopting the technical scheme, when sewage needs to be treated, a technician pours the sewage into the water inlet tank for flocculation, then transmits the sewage in the water inlet tank into the separation tank through the air compressor and the air floating pipe for suspension treatment, then supplies air into the blow-off pipe through the air supply piece, blows floating slag on the surface of the sewage through the blow-off pipe to the slag collecting tank, so that the floating slag enters the slag collecting tank for storage and collection, the technician performs unified treatment, and the sewage after the floating slag is removed enters the water outlet tank through the water outlet for collection treatment; blow through the blowdown pipe that sets up and supply air spare to the dross and blow, replace the sediment machine of scraping commonly used, reduce the dross and remain the problem of scraping on the sediment machine to promote the efficiency of getting rid of dross, and then promote the cleaning efficiency of sewage.

Optionally, the blow-off pipes are provided with multiple groups, and the multiple groups of blow-off pipes are arranged in parallel at intervals along the width direction of the separation tank.

Through adopting above-mentioned technical scheme, the clearance is blown to the dross on sewage surface to the multiunit blowdown pipe, makes the dross get into in subsequent album sediment pond, promotes the promotion efficiency of dross, and reduces the problem that reduces sewage cleaning efficiency when a set of blowdown pipe need be maintained and changed.

Optionally, the air supply piece is a communicating pipe, one end of the communicating pipe is communicated with the air compressor and the communicating pipe is communicated with the multiple groups of blow-off pipes.

Through adopting above-mentioned technical scheme, the communicating pipe that is linked together with the air compressor machine that sets up, the air compressor machine carries out the air feed to blowing pipe and air supporting pipe simultaneously, need not to set up extra power supply and can realize the air supporting of sewage and blow to the dross, practices thrift the power supply.

Optionally, an electromagnetic valve is arranged on the blow-off pipe, and the electromagnetic valve controls the blow-off pipe to movably open and close.

Through adopting above-mentioned technical scheme, the solenoid valve moves about to blow dirty pipe and opens and shuts, makes blow dirty pipe intermittent type nature pulse blow, reduces blow dirty pipe and keeps the problem that the unable liquid level in blow dirty pipe below of flowing into of dross that leads to of blowing, and the pulse is blown and will float in the dross on sewage surface blows in the album cinder pond with dross through instantaneous wind-force, makes the dross be difficult for piling up at the liquid level of sewage.

Optionally, a slag inlet is formed in the side wall, away from the water outlet pool, of the slag collecting pool, a sliding groove is formed in the side wall, away from the water outlet pool, of the slag collecting pool, the sliding groove is arranged along the height direction of the slag collecting pool, and the slag collecting assembly comprises a movable plate arranged in the sliding groove in a sliding mode and a power part used for enabling the movable plate to slide to adjust the size of the slag inlet.

By adopting the technical scheme, when scum in the separation tank is accumulated, a technician drives the movable plate to slide in the chute through the power part, so that the size of the scum inlet of the scum collection tank is adjusted, the width of the scum inlet is convenient to adjust by the technician according to the height of the liquid level in the separation tank, and when the liquid level of sewage in the separation tank is higher, the movable plate slides upwards, so that the volume of the scum tank occupied by the sewage entering the scum tank is reduced; when the sewage liquid level in the separation tank is lower, the technical staff slides the fly leaf downwards to when making the sewage liquid level lower, the dross also can be blown into in the album sediment pond by the blowoff pipe, reduces the heap of dross in the separation tank, and the blowoff pipe of being convenient for simultaneously blows the dross into collection sediment pond and saves.

Optionally, a liquid level sensor is arranged in the separation tank, and the liquid level sensor is electrically connected with the electromagnetic valve and the power part.

Through adopting above-mentioned technical scheme, adjust solenoid valve and power spare according to the sewage liquid level in the separation tank through the level sensor who sets up, realize blowing and the automation of advancing the slag notch width modulation, reduce technical staff's work load, and through the gliding stroke of the accurate control fly leaf of the level sensor who sets up to promote the accuracy nature of advancing the slag notch width modulation.

Optionally, an air stripping pipe is arranged in the separation tank, the air stripping pipe is arranged along the height direction of the separation tank and is located on one side, close to the water inlet tank, of the separation tank, and an air conveying piece for supplying air to the air stripping pipe and a one-way valve for enabling liquid in the air stripping pipe to move to the high in a one-way mode are further arranged on the air stripping pipe.

Through adopting above-mentioned technical scheme, gas transmission spare is to the intraductal air feed of air stripping, because be equipped with the check valve in the air stripping pipe, when gaseous to the output of air stripping pipe top, the sewage of handling bottom of the pool portion constantly transports to the air stripping pipe top through the air stripping pipe, one side that is close to the intake chamber in the separation tank is located to the air stripping pipe, when sewage exports to the air stripping pipe top, the liquid level that is close to intake chamber one side in making the separation tank risees, thereby make the liquid level flow to the direction of play pond, drive the direction motion of the dross of suspension in the air flotation pond to the play pond, thereby easy operation further promotes the cleaning efficiency of dross.

Through adopting above-mentioned technical scheme, when handling sewage, gas transmission spare is to carrying out gas transmission in the air stripping pipe, under the effect of check valve, sewage after subsiding in the separation tank is to the motion of air stripping pipe top, thereby make the separation tank be close to intake chamber one side sewage liquid level and rise, under the action of gravity, sewage is to the direction flow of being close to out the pond, thereby make sewage surface's dross move to the direction of play pond thereupon, and then make the dross be collected the clearance by the sediment subassembly that gathers, cooperate with blow dirty pipe, further promote sewage surface's dross cleaning efficiency.

Optionally, the gas transmission piece is a connecting pipe, one end of the connecting pipe is communicated with the gas stripping pipe, and the other end of the connecting pipe is communicated with the air compressor.

Through adopting above-mentioned technical scheme, the connecting pipe that sets up communicates with the air compressor machine, and then drives simultaneously under the condition that need not to set up extra power supply and blows dirty pipe and air stripping pipe cooperation, accomplishes the promotion to sewage surface dross.

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

1. the scum is cleaned through the arranged gas supply piece and the scum blowing pipe, and then the scum is collected through the scum collecting assembly, so that the residue of the scum in scraping is reduced, and the cleaning of the scum on the surface of the sewage is further promoted;

2. the opening width of the slag inlet is adjusted through the movable plate and the power part which are arranged in a sliding manner, so that the floating slag can be cleaned from sewage with different liquid level heights;

3. the air stripping pipe and the connecting pipe that set up need not to set up extra power supply, through the mobility of air stripping pipe reinforcing liquid level to make the dross flow to the direction of play pool, and then promote the cleaning efficiency of dross.

Drawings

FIG. 1 is a schematic view of the overall structure of a dissolved air floatation slag removal device according to an embodiment of the present application;

FIG. 2 is a schematic view of the connection structure of the air flotation pipe, the air compressor and the dirt blowing pipe in the air flotation machine.

Reference numerals: 1. an air flotation machine; 11. an air flotation pipe; 12. an air compressor; 13. a box body; 14. a first separator; 15. a second separator; 2. a water inlet pool; 21. a sewage inlet; 3. a separation tank; 31. a blow pipe; 32. a gas supply member; 321. a communicating pipe; 33. an electromagnetic valve; 34. an air floatation tank; 341. a baffle plate; 35. a spray head; 4. a water outlet pool; 41. a water outlet; 5. a slag collecting tank; 51. a slag inlet; 6. a slag collection assembly; 61. a movable plate; 62. a power member; 621. a hydraulic cylinder; 63. a liquid level sensor; 71. a gas stripping tube; 72. and (4) connecting the pipes.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses dissolved air floatation slag removal equipment. Referring to fig. 1, a dissolved air floatation slag discharging device comprises an air floatation machine 1, wherein the air floatation machine 1 comprises a box body 13 for treating sewage, the inner side wall of the box body 13 is fixedly connected with a first clapboard 14 and a second clapboard 15 in a direction vertical to the sewage treatment direction, and the box body 13 is sequentially divided into a water inlet tank 2, a separation tank 3 and a water outlet tank 4 by the first clapboard 14 and the second clapboard 15; a sewage inlet 21 is formed in the water inlet tank 2, an air floatation tank 34 is arranged in the separation tank 3, a gap for sewage flow circulation is reserved between the bottom side of the air floatation tank 34 and the inner bottom wall of the separation tank 3, an air floatation pipe 11 communicated with the water inlet tank 2 is arranged in the air floatation tank 34, and an air compressor 12 for conveying sewage in the water inlet tank 2 into the air floatation tank 34 is arranged on the air floatation pipe 11; a blow pipe 31 is arranged above one side, close to the water outlet pool 4, in the separation pool 3, a plurality of spray heads 35 are arranged on the blow pipe 31, and the spray heads 35 are obliquely arranged in the direction towards the water outlet pool 4; in the present embodiment, five spray heads 35 are arranged on one blow-off pipe 31, and the five spray heads 35 are arranged at intervals along the length direction of the blow-off pipe 31, in other embodiments, technicians can adjust the number of the spray heads 35 to two, three, four, and the like according to actual conditions, and the arrangement mode is consistent with that of the present embodiment; a water outlet 41 is formed in the side wall of the separation tank 3 close to the water outlet tank 4, a slag collecting tank 5 is further arranged on one side of the separation tank 3 close to the water outlet tank 4, a slag inlet 51 is formed in one side of the slag collecting tank 5 close to the water inlet tank 2, and a slag collecting assembly 6 for collecting and treating scum on the surface of sewage is arranged on the slag collecting tank 5.

Referring to fig. 1 and 2, one end of the air flotation pipe 11 penetrates through the side wall of the air flotation tank 34 and extends into the air flotation tank 34, the other end of the air flotation pipe penetrates through the side wall of the water inlet tank 2 and extends into the water inlet tank 2, and one end of the air flotation pipe 11 extending into the air flotation tank 34 is vertically arranged through a bent pipe; the air compressor 12 is disposed on the air floating pipe 11 outside the box 13 and fixed on the outer side wall of the box 13.

Referring to fig. 2, a plurality of air stripping pipes 71 are vertically arranged in the separation tank 3 between the air flotation tank 34 and the water inlet tank 2, the air stripping pipes 71 are arranged at intervals along the width direction of the separation tank 3, and a check valve for enabling sewage to move to the high position of the air stripping pipes 71 is arranged on each air stripping pipe 71; the bottom of the air stripping pipe 71 is communicated with a horizontal pipe through a bent pipe, and the horizontal pipe extends into a gap between the air flotation tank 34 and the separation tank 3; and a gas transmission piece for supplying gas into the gas stripping pipe 71 is arranged in the separation tank 3.

Referring to fig. 2, the gas transmission member is a connecting pipe 72, the connecting pipe 72 is communicated with the plurality of stripping pipes 71, and one end of the connecting pipe 72 penetrates through the side wall of the separation tank 3 and is communicated with the air compressor 12; after the sewage in the water inlet tank 2 is pumped into the air floatation tank 34 by the air compressor 12 for air floatation treatment, scum floats to the surface of the sewage, the treated sewage is slowly settled, at the moment, the air compressor 12 simultaneously supplies air into the air lifting pipe 71, so that the settled sewage in the separation tank 3 moves upwards into the air lifting pipe 71 through the horizontal pipe, the sewage level between the air floatation tank 34 and the water inlet tank 2 is raised, and under the action of gravity, the sewage moves towards the slag collecting tank 5 to drive the scum on the liquid level to move towards the slag collecting tank 5.

Referring to fig. 2, the floatation tank 34 is fixed inside the separation tank 3, and two side walls of the floatation tank 34 perpendicular to the sewage treatment direction are both fixedly connected with baffles 341, the baffles 341 are obliquely and upwardly arranged along the direction close to the water inlet tank 2 to the direction far away from the water inlet tank 2, and the two baffles 341 are arranged in parallel; after the air flotation pipe 11 performs air flotation treatment on the sewage, the floating scum moves towards the direction close to the scum collecting tank 5 under the action of the baffle 341, and the floating scum flow rate is further increased by matching with the air stripping pipe 71.

Referring to fig. 2, a plurality of groups of the blow-off pipes 31 are provided, and the plurality of groups of blow-off pipes 31 are arranged in parallel at intervals along the length direction of the box body 13, in this embodiment, two blow-off pipes 31 are provided, in other embodiments, three, four, five, etc. blow-off pipes 31 may also be provided, and the arrangement manner is consistent with this embodiment; an air supply member 32 for supplying air into the blowoff pipes 31 is further provided in the separation tank 3, in this embodiment, the air supply member 32 is a communication pipe 321, one end of the communication pipe 321 is communicated with both blowoff pipes 31, and the other end is communicated with the air compressor 12; scum is transported to the vicinity of the blowing pipe 31 under the cooperation of the air lifting pipe 71 and the baffle 341, at the moment, the air compressor 12 blows air into the blowing pipe 31, the scum on the surface of the sewage is blown to the direction of the scum collecting tank 5, and the scum can be blown into the scum collecting tank 5 through the air compressor 12 without arranging an additional power source.

Referring to fig. 2, the slag collecting assembly 6 includes a movable plate 61 and a power part 62 for adjusting the movable plate 61, the slag collecting tank 5 is fixed on the second partition plate 15 and is located at the top position of the separation tank 3, the slag inlet 51 is opened on the side wall of the slag collecting tank 5 close to the water inlet tank 2, a chute is opened on the side wall of the slag collecting tank 5 close to the water inlet tank 2, the chute is arranged along the height direction of the slag collecting tank 5, the movable plate 61 is slidably arranged in the chute, the sliding direction of the movable plate 61 is consistent with the arrangement direction of the chute, a sealing strip is fixedly connected to the side walls of the slag collecting tank 5 and the slag inlet 51, and the sealing strip is attached to the side wall of the movable plate 61 close to the water inlet tank 2; in this embodiment, the power element 62 is a small hydraulic cylinder 621, an output end of the hydraulic cylinder 621 penetrates through a top wall of the slag collecting tank 5 and is fixedly connected with an upper end side of the movable plate 61, the hydraulic cylinder 621 is provided with two hydraulic cylinders 621 which are arranged at intervals along a width direction of the slag collecting tank 5, and in other embodiments, the power element 62 may also be an electric push rod; when sewage of different water level heights is treated, the technician adjusts the sliding height of the movable plate 61 in the sliding chute according to different liquid level heights, so that the opening size of the slag inlet 51 is adjusted, and scum on sewage of different liquid level heights can enter the scum collecting tank 5 to be collected.

Referring to fig. 2, in order to reduce the workload of the technician and realize the automatic adjustment of the movable plate 61, a liquid level sensor 63 is further disposed in the slag collecting tank 5, the liquid level sensor 63 is electrically connected to the hydraulic cylinder 621, and the blow-off pipe 31 is provided with an electromagnetic valve 33, the electromagnetic valve 33 is also electrically connected to the liquid level sensor 63; the automation of air blowing and width adjustment of the slag inlet 51 is realized through the liquid level sensor 63, the workload of technicians is reduced, and the accuracy of width adjustment of the slag inlet 51 is improved.

The implementation principle of the dissolved air floatation slag removal equipment in the embodiment of the application is as follows: when sewage needs to be treated, a technician pours the sewage into the water inlet tank 2 through the sewage inlet 21 and flocculates the sewage by adding a chemical agent, then the air compressor 12 works to transport the sewage in the water inlet tank 2 into the air flotation tank 34 through the air flotation pipe 11, so that the flocculated scum floats to the surface of the sewage and flows along with the baffle 341 in the direction of the scum collecting tank 5, meanwhile, the air compressor 12 supplies air to the air lifting pipe 71 and the sewage blowing pipe 31, the air lifting pipe 71 enables the sewage in the separation tank 3 to circularly flow and enables the liquid level between the air flotation tank 34 and the water inlet tank 2 to rise, so that the scum is driven to flow in the direction of the scum collecting tank 5, the spray head 35 of the sewage blowing pipe 31 sprays airflow, and the scum on the surface of the sewage is blown into the scum inlet 51 of the scum collecting tank 5 to enter the scum collecting tank 5 for collection; carry out intermittent type nature opening and shutting to the blowdown pipe 31 through the solenoid valve 33 that sets up, make the blowdown pipe 31 pulse nature blow, reduce piling up of dross and reduce the waste of the energy that the blowdown pipe 31 lasts the result in of blowing simultaneously, and when the height of liquid level changes, go up and down through level sensor 63 control hydraulic cylinder 621, make fly leaf 61 slide in the spout, thereby make the opening of slag inlet 51 adjust, and then make the sewage of different liquid level height just can be blown by blowdown pipe 31, further reduce the sewage treatment that piling up of dross leads to inadequately.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, 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. The utility model provides a dissolve gas air supporting slag discharging equipment, includes air supporting machine (1), air supporting machine (1) includes air supporting pipe (11), locates dissolved air compressor machine (12) on air supporting pipe (11) and is used for handling sewage's box body (13), its characterized in that: box body (13) are separated for intake chamber (2), separation tank (3) and outlet basin (4) along the treatment direction of sewage in proper order by first baffle (14) and second baffle (15), the one end of air supporting pipe (11) with intake chamber (2) are linked together and the other end is linked together with separation tank (3), be equipped with on separation tank (3) blow dirty pipe (31) and be used for carrying out air feed spare (32) of air feed to blow dirty pipe (31), blow dirty pipe (31) are laid towards the direction of outlet basin (4), still be equipped with on outlet basin (4) and be used for carrying out the collection sediment subassembly (6) of collecting to the dross.

2. The dissolved air floatation slag removal device according to claim 1, characterized in that: the blow-off pipes (31) are provided with a plurality of groups, and the plurality of groups of blow-off pipes (31) are arranged in parallel at intervals along the width direction of the separation tank (3).

3. The dissolved air floatation slag removal device according to claim 2, characterized in that: the air supply piece (32) is a communication pipe (321), one end of the communication pipe (321) is communicated with the air compressor (12), and the communication pipe (321) is communicated with the multiple groups of blow-off pipes (31).

4. The dissolved air floatation slag removal device according to claim 3, characterized in that: and the blow-off pipe (31) is provided with an electromagnetic valve (33), and the electromagnetic valve (33) controls the blow-off pipe (31) to movably open and close.

5. The dissolved air floatation slag removal device according to claim 4, characterized in that: be equipped with album slag bath (5) in separation tank (3), one side that separation tank (3) are close to outlet basin (4) is located in collection slag bath (5), set up on the lateral wall of outlet basin (4) is kept away from in collection slag bath (5) and advanced cinder notch (51), set up the spout on the lateral wall of outlet basin (4) is kept away from in collection slag bath (5), the spout is laid along the direction of height in collection slag bath (5), collection sediment subassembly (6) including slide set up in the spout fly leaf (61) and be used for making fly leaf (61) slide carry out the power spare (62) adjusted to the size of advancing cinder notch (51).

6. The dissolved air floatation slag removal device according to claim 5, characterized in that: be equipped with level sensor (63) in separation pond (3), level sensor (63) with solenoid valve (33) and power spare (62) are all connected electrically.

7. The dissolved air floatation slag removal device according to claim 1, characterized in that: be equipped with air stripping pipe (71) in separation tank (3), air stripping pipe (71) are laid and are located one side that is close to intake pool (2) in separation tank (3) along the direction of height of separation tank (3), still be equipped with on air stripping pipe (71) and be used for carrying out the gas transmission spare of air feed and be used for making the liquid in air stripping pipe (71) to eminence one-way motion's check valve to air stripping pipe (71).

8. The dissolved air floatation slag removal device according to claim 7, characterized in that: the air supply part (32) is a connecting pipe (72), one end of the connecting pipe (72) is communicated with the air stripping pipe (71), and the other end of the connecting pipe is communicated with the air compressor (12).