CN209635931U - A kind of partial reflux dissolved gas floating device - Google Patents

Abstract

The utility model discloses a kind of partial reflux dissolved gas floating device, including pond body, the pond body is from left to right successively arranged reaction tank, contact chamber and flotation tank, first baffle is equipped between the reaction tank and the contact chamber, there are gaps between the first baffle and the bottom wall of the pond body, second baffle is equipped between the contact chamber and the flotation tank, the second baffle is lower than the height of the pond body, catch basin is equipped on the right side of the pond body, the sink left side wall that catchments is equipped with weir plate height adjustment device, the trench bottom that catchments is equipped with outlet pipe, the outlet pipe connects reflux line, the reflux line is passed through the contact bottom of pond portion by air-dissolving apparatus.The utility model is equipped with weir plate height adjustment device at the water inlet of catch basin, and liquid level can be adjusted in real time according to the inflow of flotation tank, guarantees that liquid level is concordant with storage slag chute always, is conducive to striking off for dross, also avoids the problem of a large amount of water enters storage slag bath.

Description

A kind of partial reflux dissolved gas floating device

Technical field

The utility model relates to technical field of water treatment equipment, in particular to a kind of partial reflux dissolved gas floating device.

Background technique

Air-dissolving air-float is also known as molten vapour air bearing of pressurizeing, and decontamination principle is to make more air soluble in water by air pressurized, By the not poly- drop of pressure make that a large amount of micron order minute bubbles are precipitated in water again, in minute bubbles floating-upward process, in its meeting absorption effluent Suspended matter and floccule float together, dissolved gas floatator is exactly the effect that fine and clean water quality is realized by this principle.

Sewage after dosing is reacted enters pneumatically supported mixed zone, is mixed with the dissolved air water after release, makes floccule body It is adhered to fine gas bubbles upper body, subsequently into air flotation zone.Floccule body floats to the surface to form dross under the action of lift of gas, lower layer Clear water after water collector flow to clear water reserviors, a part reflux is made molten gas and is used, and remaining clear water passes through overflow port outflow.Flotation tank Dross on the water surface accumulates to after certain thickness, by being discharged after scraping machine Gua Ru air floatation machine dreg chamber.But existing air bearing Pond can not adjust liquid level according to inflow, if air bearing liquid liquid level is lower, Slag Scraping Device can not be scraped dross to dreg chamber.If air bearing Pit level is higher, has a large amount of water and enters dreg chamber, influences the effect of air-flotation process.

Utility model content

The utility model provides a kind of partial reflux dissolved gas floating device, and solving existing air-floating apparatus can not adjust in time In flotation tank the problem of liquid level.

In order to solve the above technical problems, the technical solution of the utility model is achieved in that

The utility model provides a kind of partial reflux dissolved gas floating device, including pond body, and the pond body is from left to right according to setting Have reaction tank, contact chamber and flotation tank, between the reaction tank and the contact chamber be equipped with first baffle, the first baffle with There are gaps between the bottom wall of the pond body, and second baffle, the second gear are equipped between the contact chamber and the flotation tank Plate is lower than the height of the pond body, and deslagging device is equipped at the top of the flotation tank, and dreg chamber is equipped on the right side of the flotation tank, described Effluent recycling area is constituted between dreg chamber and the pond body right wall, and catch basin, the sink left side of catchmenting are equipped on the right side of the pond body Side wall is equipped with weir plate height adjustment device, and for the trench bottom that catchments equipped with outlet pipe, the outlet pipe connects reflux line, described Reflux line is passed through the contact bottom of pond portion by air-dissolving apparatus.

Wherein it is preferred to the weir plate height adjustment device includes weir plate, weir plate U-type groove, screw rod, spill spin block and bracket, The weir plate lower part is inserted into the weir plate U-type groove, is fixedly connected at the top of the weir plate with the screw rod, the spill spin block and institute Screw flight connection is stated, the bracket is fixed in the U-type groove, and the screw rod passes through bracket, and the spill spin block is located at described On bracket.

Wherein it is preferred to which the weir plate height is lower than liquid level in the recirculating zone.

Wherein it is preferred to which the air-dissolving apparatus includes sequentially connected dissolved air water pump, molten gas aerostatic press and dissolved air water release Device, the dissolved air release are passed through the bottom of the contact chamber.

Wherein it is preferred to be equipped with deflector at the top of the second baffle, the deflector is upward towards the flotation tank direction It is obliquely installed.

Wherein it is preferred to the dreg chamber bottom to the middle and lower part of the flotation tank, the dreg chamber bottom is connected with row Slag pipe, the scum pipe are equipped with slag-discharging valve.

The utility model has the beneficial effects that

1. the utility model is equipped with weir plate height adjustment device at the water inlet of catch basin, can be according to the inflow of flotation tank Liquid level is adjusted in real time, guarantees that liquid level is concordant with storage slag chute always, is conducive to striking off for dross, is also avoided a large amount of water and is entered The problem of storing up slag bath.

2. the bottom of dreg chamber is passed through the middle and lower part of the flotation tank in the utility model, pond body described in the dreg chamber is right Wall forms recirculating zone, and water outlet will first pass through recirculating zone between inflow catch basin, extends water outlet path, further improves out The quality of water.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of partial reflux dissolved gas floating device in the utility model.

In figure, 1. pond bodies, 2. reaction tanks, 3. contact chambers, 4. flotation tanks, 5. water inlet pipes, 6. first baffles, 7. second gear Plate, 8. deflectors, 9. deslagging devices, 10. dreg chamber, 11. recirculating zones, 12. catch basins, 13. weir plates, 14. weir plate U-type grooves, 15. Screw rod, 16. spill spin blocks, 17. brackets, 18. outlet pipes, 19. reflux lines, 20. dissolved air waters pump, 21. molten gas aerostatic presses, 22. is molten Air water release, 23. scum pipes, 24. slag-discharging valves

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1, the present embodiment provides a kind of partial reflux dissolved gas floating device, including pond body 1, pond body 1 from a left side to According to being equipped with reaction tank 2, contact chamber 3 and flotation tank 4, the top of reaction tank 2 is equipped with water inlet pipe 5 on the right side, reaction tank 2 and contact chamber 3 it Between be equipped with first baffle 6 and the processing water in reaction tank 2 can be made by this there are gap between first baffle 6 and the bottom wall of pond body 1 Gap flows into contact chamber 3.Second baffle 7 is equipped between contact chamber 3 and flotation tank 4, second baffle 7 is lower than the height of pond body 1, benefit In the processing water in contact chamber 3 by 7 overflow of second baffle to flotation tank 4.

It is equipped with deslagging device 9 at the top of flotation tank 4, is equipped with dreg chamber 10, dreg chamber 10 and deslagging device 9 on the right side of flotation tank 4 It is correspondingly arranged, is conducive to deslagging device 9 for dross Gua Ru dreg chamber 10.Effluent recycling is constituted between 1 right wall of dreg chamber 10 and pond body Area 11, water outlet will first pass through recirculating zone 11 between inflow catch basin 12, extend water outlet path, further improve water outlet Quality.

Catch basin 12 is equipped on the right side of pond body 1, the sink left side wall that catchments is equipped with weir plate height adjustment device, 12 bottom of catch basin Equipped with outlet pipe 18.Weir plate height adjustment device includes weir plate 13, weir plate U-type groove 14, screw rod 15, spill spin block 16 and bracket 17, 13 lower part of weir plate is inserted into the weir plate U-type groove 14, and 13 top of weir plate is fixedly connected with the screw rod 15, spill spin block 16 with it is described Screw rod 15 is threadedly coupled, and bracket 17 is fixed in the U-type groove, and screw rod 15 passes through bracket 17, and spill spin block 16 is located at the bracket On 17.Weir plate 13 can move up and down in weir plate U-type groove 14, rotate spill spin block 16, screw rod 15 relative to spill spin block 16 rise or Decline drives weir plate to move up and down in weir plate U-type groove 14, makes 13 height of weir plate lower than liquid level in recirculating zone 11, is conducive to The overflow of water outlet, and the spilling water height of the overflow groove of catch basin 12 is had adjusted, the height of 4 liquid level of flotation tank is adjusted, gas can be made The liquid surface height controlling in floating pond 4 conducive to the progress for scraping slag, also avoids a large amount of concordant with the height of dreg chamber 10 slag input side wall Processing water enter dreg chamber 10, increase the workload of storage slag cleaning.

Outlet pipe 18 connects reflux line 19, and reflux line 19 is passed through 3 bottom of contact chamber by air-dissolving apparatus.Air-dissolving apparatus The contact is passed through including sequentially connected dissolved air water pump 20, molten gas aerostatic press 21 and dissolved air water release 22, dissolved air release The bottom in pond 3.The present embodiment flows back water part molten gas using part dissolved air flotation, then is passed through the bottom of contact chamber Portion.

Wherein, deflector 8 is equipped at the top of second baffle 7, deflector 8 is obliquely installed upwards towards 4 direction of flotation tank, plays and lead The effect of stream.

Wherein, 10 bottom of dreg chamber to the middle and lower part of flotation tank 4,10 bottom of dreg chamber are connected with scum pipe 23, scum pipe 23 are equipped with slag-discharging valve 24.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (6)

1. a kind of partial reflux dissolved gas floating device, including pond body, the pond body is from left to right successively arranged reaction tank, contact chamber And flotation tank, it is characterised in that: between the reaction tank and the contact chamber be equipped with first baffle, the first baffle with it is described There are gaps between the bottom wall of pond body, and second baffle is equipped between the contact chamber and the flotation tank, and the second baffle is low It is equipped with deslagging device at the top of the height of the pond body, the flotation tank, is equipped with dreg chamber, the storage slag on the right side of the flotation tank Effluent recycling area is constituted between room and the pond body right wall, is equipped with catch basin, the sink left side wall that catchments on the right side of the pond body Equipped with weir plate height adjustment device, for the trench bottom that catchments equipped with outlet pipe, the outlet pipe connects reflux line, the reflux Pipeline is passed through the contact bottom of pond portion by air-dissolving apparatus.

2. a kind of partial reflux dissolved gas floating device according to claim 1, it is characterised in that: the weir plate height adjustment Device includes weir plate, weir plate U-type groove, screw rod, spill spin block and bracket, and the weir plate lower part is inserted into the weir plate U-type groove, described It is fixedly connected at the top of weir plate with the screw rod, the spill spin block is connect with the screw flight, and the bracket is fixed on described U-shaped On slot, the screw rod passes through bracket, and the spill spin block is set on the bracket.

3. a kind of partial reflux dissolved gas floating device according to claim 2, it is characterised in that: the weir plate height is lower than Liquid level in the recirculating zone.

4. a kind of partial reflux dissolved gas floating device according to claim 1, it is characterised in that: the air-dissolving apparatus includes Sequentially connected dissolved air water pump, molten gas aerostatic press and dissolved air water release, the dissolved air release are passed through the bottom of the contact chamber Portion.

5. a kind of partial reflux dissolved gas floating device according to claim 1, it is characterised in that: at the top of the second baffle Equipped with deflector, the deflector is obliquely installed upwards towards the flotation tank direction.

6. a kind of partial reflux dissolved gas floating device according to claim 1, it is characterised in that: the dreg chamber bottom is extremely The middle and lower part of the flotation tank, the dreg chamber bottom are connected with scum pipe, and the scum pipe is equipped with slag-discharging valve.