CN220334852U - Hydraulic deslagging air floatation equipment - Google Patents

Abstract

The utility model provides hydraulic deslagging air floatation equipment, relates to the technical field of water treatment equipment, and solves the technical problem that the operation effect of a mechanical slag scraping machine in the prior art is easily influenced by the quality of inlet water and the liquid level of an air floatation tank. The device comprises an air floatation tank, a hydraulic deslagging pipe and a deslagging groove, wherein the hydraulic deslagging pipe is arranged above an air floatation reaction area of the air floatation tank, the deslagging groove is arranged at one end, close to a clear water area of the air floatation tank, in the air floatation reaction area, the hydraulic deslagging pipe is provided with a plurality of water spray nozzles, water flow sprayed by the water spray nozzles faces the liquid level, at least part of water spray nozzles incline towards the direction of the deslagging groove, and the hydraulic deslagging pipe is communicated with an external water supply pipeline. The utility model is used for pushing scum to move towards the direction of the scum groove by adopting the hydraulic scum discharging pipe and the water spraying nozzle, the water sprayed by the water spraying nozzle can effectively digest foam to adapt to the easily foaming water quality, and the water spraying mode can ensure good scum discharging effect when the liquid level is lower.

Description

Hydraulic deslagging air floatation equipment

Technical Field

The utility model relates to the technical field of water treatment equipment, in particular to hydraulic deslagging air floatation equipment.

Background

The air floatation is a technology of solid-liquid separation or liquid-liquid separation, and is characterized by that it utilizes a certain method to produce lots of microbubbles, and makes them adhere to the solid or liquid pollutant particles whose density is close to that of water in the waste water so as to form the air floatation body whose density is less than that of water, under the action of buoyancy force the air floatation body can be lifted to water surface to form scum so as to implement solid-liquid separation or liquid-liquid separation. The scum separator that current dissolved air floatation system used is the sediment machine of scraping of fixed mounting at the air supporting pond top, because the quality of water that intakes is different, contains the material of easily foaming in some waste water, can produce a large amount of foams and attach on the scum layer in the air supporting reaction in-process, can cause the scum layer too thick, and the scum layer is too thick will make the sediment in-process accumulation disturbance of scraping make partial scum get into in water and then influence out water quality, causes the sediment effect of scraping sediment machine to descend, and secondly the sediment effect of scraping of sediment machine is also influenced to air supporting pond liquid level.

Therefore, designing an air floatation device which can be affected little by the quality of the inlet water and the liquid level of the air floatation tank becomes a problem to be solved urgently.

Disclosure of Invention

The utility model aims to provide hydraulic slag removal air floatation equipment, which solves the technical problem that the operation effect of a mechanical slag scraping machine in the prior art is easily influenced by the quality of inlet water and the liquid level of an air floatation tank. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the hydraulic slag discharging air floatation equipment comprises an air floatation tank, a hydraulic slag discharging pipe and a slag floating groove, wherein the hydraulic slag discharging pipe is arranged above an air floatation reaction area of the air floatation tank, the slag floating groove is arranged at one end, close to a clear water area of the air floatation tank, in the air floatation reaction area, the hydraulic slag discharging pipe is provided with a plurality of water spray nozzles, water flow sprayed by the water spray nozzles faces the liquid level, at least part of the water spray nozzles incline towards the direction of the slag floating groove, and the hydraulic slag discharging pipe is communicated with an external water supply pipeline.

Preferably, the hydraulic slag discharging pipe comprises a vertical pipe vertical to the water flow direction and a transverse pipe along the water flow direction, wherein the vertical pipe is communicated with the transverse pipe, and the vertical pipe is arranged close to the dissolved air release area of the air floatation tank.

Preferably, the two transverse pipes are respectively connected with two ends of the vertical pipe, and the hydraulic slag discharging pipes are arranged in a U shape.

Preferably, the hydraulic slag discharging pipes are arranged in two groups, and one group of the hydraulic slag discharging pipes is positioned in a U-shaped space formed by the other group of the hydraulic slag discharging pipes.

Preferably, the water spray nozzles on the vertical pipes spray water columns, and the water spray nozzles on the horizontal pipes spray water.

Preferably, the air floatation tank is divided into a water inlet area, a dissolved air release area, an air floatation reaction area and a clear water area by a first partition plate, a second partition plate and a third partition plate in sequence, and a dissolved air releaser is arranged in the dissolved air release area.

Preferably, the bottom of the first partition plate is provided with a water passing hole, the second partition plate is obliquely arranged, the upper end of the second partition plate is inclined towards the air floatation reaction zone, the bottom of the third partition plate is provided with a water collecting pipe, and two ends of the water collecting pipe are respectively communicated with the air floatation reaction zone and the clear water zone.

Preferably, the slag chute is arranged on the third partition board, an opening of the slag chute faces the hydraulic slag discharging pipe, and a guide plate extending obliquely towards the inside of the air floatation reaction zone is arranged at the lower edge of the opening.

The application adopts the technical scheme, possesses following beneficial effect at least:

the water spray nozzle is arranged on the water power slag discharging pipe, water flow of the water spray nozzle is inclined towards the sewage liquid level and the direction of the slag groove, so that the water flow sprayed by the water spray nozzle can give power to the scum towards the direction of the slag groove, the scum is pushed to enter the slag groove, foam on the scum can be effectively eliminated through sprayed water, slag discharging of the water quality easy to foam is achieved, and good slag discharging effect is guaranteed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a top view structure of hydraulic deslagging air floatation equipment provided by an embodiment of the utility model;

fig. 2 is a schematic diagram of a front view structure of a hydraulic deslagging air floatation device according to an embodiment of the utility model.

In the figure 1, an air floatation tank; 2. a hydraulic deslagging pipe; 3. a slag groove; 4. a water spray nozzle; 5. a standpipe; 6. a transverse tube; 7. a first separator; 8. a second separator; 9. a third separator; 10. a water inlet area; 11. a dissolved gas release zone; 12. an air floatation reaction zone; 13. a clear water zone; 14. a dissolved air releaser; 15. a water passing hole; 16. a water collecting pipe; 17. a deflector; 18. a water inlet pipe; 19. and a water outlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

The embodiment of the utility model provides a hydraulic deslagging air floatation device, which is shown in the accompanying drawings 1 and 2 and mainly comprises an air floatation tank 1, a hydraulic deslagging pipe 2 and a deslagging tank 3, wherein the air floatation tank 1 is internally divided into a water inlet area 10, a dissolved air release area 11, an air floatation reaction area 12 and a clear water area 13, the hydraulic deslagging pipe 2 is arranged above the air floatation reaction area 12, the deslagging tank 3 is arranged at one end, close to the clear water area 13, of the air floatation reaction area 12, the opening of the deslagging tank 3 faces the hydraulic deslagging pipe 2, a plurality of water spray nozzles 4 are arranged on the hydraulic deslagging pipe 2, water flows sprayed by the water spray nozzles 4 face the liquid level, at least part of the water spray nozzles 4 incline towards the direction of the deslagging tank 3, so that the water flow of the nozzles 4 can push the deslagging tank 3 to move towards the deslagging tank 3 and then enter the deslagging tank 3, the hydraulic deslagging pipe 2 is communicated with an external water supply pipeline, and the external water supply pipeline is supplied by the external water supply pipeline. The hydraulic slag removal air floatation device can effectively eliminate foam, adapt to the easily foaming water quality, and the water spraying mode can also adapt to the condition of any water level, so that the condition that slag removal cannot be performed when the liquid level of the mechanical slag scraper is low can not occur.

In the specific embodiment of this application, hydraulic slag discharge pipe 2 includes standpipe 5 and the violently pipe 6 along the rivers direction of perpendicular to rivers direction, combines fig. 2, standpipe 5 and violently pipe 6 intercommunication, and standpipe 5 is close to the dissolved air release district 11 setting of air supporting pond 1, and the water spout 4 slope on the standpipe 5 is towards the scum groove 3 direction to this water spout 4 can spray the water column, and the mode water spray promotes the dross and removes towards scum groove 3 direction.

The transverse pipes 6 are respectively connected with two ends of the vertical pipes 5, the hydraulic slag discharging pipes 2 are arranged in a U shape, the water spray nozzles 4 on the vertical pipes 5 on two sides can be spray nozzles and are mainly used for resolving foam, and the transverse pipes 6 are longer along the length direction in the air-float reaction zone 12 as much as possible so as to ensure that the foam on the scum is resolved to the greatest extent.

The hydraulic slag discharging pipes 2 can be arranged into two groups, one group of hydraulic slag discharging pipes 2 is positioned in the U-shaped space formed by the other group of hydraulic slag discharging pipes 2, and thus the speed of foam digestion can be increased.

In the specific embodiment of the application, the first baffle 7, the second baffle 8 and the third baffle 9 are sequentially arranged inside the air floatation tank 1, the air floatation tank 1 is divided into a water inlet area 10, a dissolved air release area 11, an air floatation reaction area 12 and a clear water area 13 through the first baffle 7, the second baffle 8 and the third baffle 9, a dissolved air release device 14 is arranged in the dissolved air release area 11, a communicated water inlet pipe 18 is arranged on the outer wall of the water inlet area 10, and a communicated water outlet pipe 19 is arranged on the outer wall of the clear water area 13.

The bottom of the first baffle 7 is provided with a water passing hole 15, the second baffle 8 is obliquely arranged, the upper end of the second baffle 8 is inclined towards the air-float reaction zone 12, the bottom of the third baffle 9 is provided with a water collecting pipe 16, and two ends of the water collecting pipe 16 are respectively communicated with the air-float reaction zone 12 and the clean water zone 13.

The scum tank 3 is arranged on the third partition plate 9, the opening of the scum tank 3 faces the hydraulic slag discharging pipe 2, the lower edge of the opening is provided with a guide plate 17 extending obliquely towards the inside of the air floatation reaction zone 12, and the guide plate 17 can guide scum washed by water flow into the scum tank 3.

Incoming water enters the water inlet zone 10 from the water inlet pipe 18, and coagulation and flocculation reactions are completed in the zone sequentially through an external coagulant and a flocculant (the addition amount and the reaction time can be determined through experiments according to the water quality condition). Then, the gas enters the gas dissolving and releasing area 11 from the water passing hole 15 at the lower part at the flow rate lower than 0.1m/s, the gas dissolving and releasing device 14 is arranged in the gas dissolving and releasing area 11 (the quantity of the gas dissolving and releasing device 14 is determined by factors such as the gas dissolving and water dissolving and releasing efficiency and the gas dissolving and water returning quantity), the gas dissolving and water mixing is completed under a certain pressure (the gas dissolving pressure is usually 0.2-0.4 Mpa) in the gas dissolving tank, a large quantity of tiny bubbles of 50-100 mu m are generated by the instantaneous decompression of the gas dissolving and releasing device 14, and the gas dissolved in the water is released into the sewage again. These fine bubbles undergo a sufficient contact reaction with flocs, particulates, and the like in the water flow having a constant flow rate in the rising process. In practical design, the rising flow rate is generally about 20mm/s, so that a sufficient reaction time with a large number of micro bubbles is ensured, and the solid-liquid separation efficiency of the air floatation reaction zone 12 is considered to be influenced by the fact that the volume of the dissolved air release zone 11 cannot be excessively large. Thereafter, the water stream passes from the dissolved air delivery zone 11 over the upper portion of the inclined second partition 8 into the air flotation reaction zone 12. The falling speed of the water flow entering the air-float reaction zone 12 is in the range of 1.5-3 mm/s, i.e. the hydraulic load of the air-float reaction zone 12 is ensured to be 5.5-10.8m ³ /m ² H (including the return amount of dissolved air water). In the air-float reaction zone 12, these tiny bubbles carry the flocculated product and some tiny particles up to the surface of the wastewater to form scum.

The hydraulic slag discharging pipe 2 is arranged at the height of 8cm to 15cm above the liquid level of the air floatation reaction zone 12. The main water pipe of the hydraulic slag discharging pipe 2 is connected with an electromagnetic valve and an automatic regulating valve, is externally connected with pressurized clear water, and can determine the period for removing the scum according to the actual scum generation condition and the on-site operation condition (after the general system stably operates, the scum is discharged for 2-4 hours for one time). The hydraulic slag discharging pipe 2 is a series of U-shaped pipelines, one side of the U-shaped opening faces the slag floating groove 3 at the other end of the air floating tank body, and one or more U-shaped pipelines can be arranged according to the size of the tank body, the scum generation condition and the field operation condition. A plurality of water spray nozzles 4 are uniformly distributed on the hydraulic slag discharging pipe 2, and the water spray nozzles 4 are communicated with the hydraulic slag discharging pipe 2 and are arranged below the hydraulic slag discharging pipe 2. The water spray direction of the water spray nozzle 4 inclines to the slag chute 3, and the included angle range of the water spray nozzle and the horizontal plane can be 5-10 degrees. A slag groove 3 is arranged at the tail end of the air floatation reaction zone 12. When slag is needed to be discharged, the hydraulic slag discharging pipe 2 is filled with pressurized water flow (the water pressure can be 0.25-0.35 Mpa), and the generated scum is gradually pushed to the tail end of the air floatation reaction zone 12 through the water spray nozzles 4 distributed on the hydraulic slag discharging pipe and finally discharged into the scum groove 3. The produced water after the air-float reaction enters the clear water zone 13 through the water collecting pipe 16 at the bottom and finally enters the next process flow through the water outlet pipe 19.

When sewage entering the pool contains some foaming substances, part of foam is generated after the air floatation reaction and is adhered to the surface of the slag layer, the slag layer is pushed by water flow with a certain speed and pressure sprayed by a series of U-shaped hydraulic slag discharging pipes 2 and water spraying nozzles 4, and finally the foam on the surface of the slag layer can be digested by the water flow with a certain speed and pressure in the process of entering the slag groove 3, so that the slag layer is more thoroughly discharged, and the purification effect of produced water is better.

When sewage entering the pool is subjected to an air floatation reaction, the amount of generated scum is small, but the generated foam is relatively large, the foam needs to be digested by waterpower, and the slag is discharged by waterpower after the liquid level scum layer is accumulated to a certain thickness (usually 5-8 cm). At this time, the electromagnetic switch on the water main pipe can be controlled by the hydraulic slag discharging pipe 2 to open the electromagnetic valve, and meanwhile, the pressure of water can be regulated by controlling the automatic regulating valve (the pressure value can be determined through the actual running condition of the site and preset by the control module), so that the speed and the pressure of the pressurized water flow sprayed by the water spraying nozzle 4 are reduced, and the produced slag layer is not disturbed while the foam is effectively eliminated by the low-speed low-pressure water flow. When the slag layer is accumulated to a certain thickness (usually 5-8 cm), the pressure of the normal running water (the pressure is 0.25-0.35 Mpa) is regulated to the pressure of the normal running water by an automatic regulating valve on the water supply main pipe of the hydraulic slag discharging pipe 2, and the normal high-efficiency hydraulic slag discharging process is carried out.

In the present disclosure, the terms "one embodiment," "some embodiments," "examples," "specific examples," "some examples," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (8)

1. The utility model provides a hydraulic power sediment air supporting equipment, its characterized in that includes air supporting pond, hydraulic power sediment pipe and slag groove, hydraulic power sediment pipe set up in air supporting reaction area top of air supporting pond, the slag groove sets up be close to in the air supporting reaction area the one end in the clear water zone of air supporting pond, have a plurality of water spray nozzles on the hydraulic power sediment pipe, the rivers that the water spray nozzle sprayed are towards the liquid level, and at least part the water spray nozzle orientation the slope of slag groove direction, hydraulic power sediment pipe and external water supply pipeline intercommunication.

2. The hydraulic deslagging air floatation device according to claim 1, wherein the hydraulic deslagging pipe comprises a vertical pipe perpendicular to the water flow direction and a transverse pipe along the water flow direction, the vertical pipe is communicated with the transverse pipe, and the vertical pipe is arranged close to a dissolved air release area of the air floatation tank.

3. The hydraulic deslagging air floatation device according to claim 2, wherein the transverse pipes are respectively connected with two ends of the vertical pipe, and the hydraulic deslagging pipes are arranged in a U shape.

4. The hydraulic slag removal air floatation device of claim 3, wherein the hydraulic slag removal pipes are two groups, and one group of the hydraulic slag removal pipes is positioned in a U-shaped space formed by the other group of the hydraulic slag removal pipes.

5. The hydraulic slag and air floatation device of any one of claims 2 to 4, wherein said water spray nozzles on said vertical tube spray water columns and said water spray nozzles on said horizontal tube spray water.

6. The hydraulic deslagging air floatation device according to claim 1, wherein the air floatation tank is divided into a water inlet area, a dissolved air release area, an air floatation reaction area and a clear water area by a first partition plate, a second partition plate and a third partition plate in sequence, and a dissolved air releaser is arranged in the dissolved air release area.

7. The hydraulic deslagging air floatation device according to claim 6, wherein water holes are formed in the bottom of the first partition board, the second partition board is obliquely arranged, the upper end of the second partition board is inclined towards the air floatation reaction zone, a water collecting pipe is arranged in the bottom of the third partition board, and two ends of the water collecting pipe are respectively communicated with the air floatation reaction zone and the clear water zone.

8. The hydraulic slag removal air floatation device of claim 6, wherein the slag chute is arranged on the third partition board, an opening of the slag chute faces the hydraulic slag removal pipe, and a lower edge of the opening is provided with a guide plate extending obliquely towards the inside of the air floatation reaction zone.