CN216584286U

CN216584286U - Dissolved air flotation water treatment device

Info

Publication number: CN216584286U
Application number: CN202122781603.8U
Authority: CN
Inventors: 王金路; 李阳; 任晓燕
Original assignee: Shandong Lvbang Biotechnology Co ltd
Current assignee: Shandong Lvbang Biotechnology Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-24
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to a dissolved air floating water treatment device, which belongs to the technical field of water treatment and comprises an air floating tank and a sewage tank, wherein a slag scraping machine is arranged at the upper end of the air floating tank, a water outlet pipe is arranged in the air floating tank, a plurality of water outlet ports are arranged on the water outlet pipe, a dissolved air water pressure tank communicated with the water outlet pipe is arranged outside the air floating tank, a water return pipe and a partition plate are arranged in the air floating tank, the water return pipe is positioned above the water outlet pipe, two rows of water return ports are arranged on the front side and the rear side of the water return pipe, the water return pipe is communicated with the dissolved air water pressure tank through a pipeline, and the upper part of the sewage tank is communicated with the left lower end of the air floating tank through a self-priming pump and a sewage flow meter. The utility model can continuously work for a longer time and has higher operation efficiency.

Description

Dissolved air flotation water treatment device

Technical Field

The utility model relates to a dissolved air flotation water treatment device, and belongs to the technical field of water treatment.

Background

At present, dissolved air floatation equipment is most commonly used in the water treatment industry, but when the air floatation is started or the situation that the air floatation load is heavy due to more impurities in the incoming water is met, the suspended matters in the outgoing water are high, the outgoing water is used as the dissolved air water, a releaser in an aeration system is easily blocked, the cleaning frequency of the aeration system is increased, and the air floatation operation efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provide the dissolved air floatation water treatment device with higher operation efficiency.

The utility model is realized by the following technical scheme:

namely, the dissolved air floating water treatment device comprises an air floating tank, wherein a slag scraping machine is arranged at the upper end of the air floating tank, a water outlet pipe is arranged in the air floating tank, a plurality of water outlet holes are formed in the water outlet pipe, a dissolved air water pressure tank communicated with the water outlet pipe is arranged outside the air floating tank, a water return pipe and a partition plate are arranged in the air floating tank, the water return pipe is positioned above the water outlet pipe, two rows of water return ports are formed in the front side and the rear side of the water return pipe, and the water return pipe is communicated with the dissolved air water pressure tank through a pipeline;

the device also comprises a sewage tank, wherein the upper part of the sewage tank is communicated with the left lower end of the air floatation tank through a self-priming pump and a sewage flowmeter.

The wet return is for dissolving the water supply of air water overhead tank, need not external water source, the wet return is located the outlet pipe directly over, the impurity that contains by the aquatic of wet return suction can be few, form in dissolving the air water overhead tank and dissolve air water, it dissolves air water to let in to the air supporting pond through the outlet pipe to dissolve the air water overhead tank, the in-process adsorbs suspended solid impurity of rising, make its density decline float to the surface of water, the outlet pipe is difficult for blockking up, need not frequent clearance, sewage in the effluent water sump at first enters into the left space of air supporting pond internal partitioning board, when the surface of water highly is higher than the baffle on the edge, sewage slowly enters into the space on air supporting pond internal partitioning board right side, the baffle plays the effect of buffering sewage, be favorable to guaranteeing to dissolve the comprehensive of air water adsorption impurity. The utility model can continuously work for a longer time and has higher operation efficiency.

The utility model is further improved in that a sludge hopper is arranged at the left upper end of the air floatation tank, a plurality of sewage discharge hoppers are arranged at the lower end of the air floatation tank, all the sewage discharge hoppers are communicated with a sludge tank arranged below the air floatation tank, and the sludge hopper is connected with the sludge tank through a pipeline. Impurities floating on the water surface are scraped by the slag scraper and collected into the sludge hopper, and the design of the sewage hopper is convenient for the deposition and recovery of heavy impurities in the sewage.

The utility model is further improved in that a dosing ejector is arranged on a pipeline communicated between the sewage flowmeter and the air floatation tank, and a dosing box is connected to the inlet end of the dosing ejector.

The utility model is further improved in that a dissolved air pump and a dissolved air water flow meter are arranged on a pipeline between the water return pipe and the dissolved air water pressure tank, so that the flow of the dissolved air water introduced into the air floatation tank can be accurately controlled.

The utility model is further improved in that the water pressure tank is also connected with an air compressor and an air flow meter, so that the flow of air introduced into the water pressure tank can be accurately controlled.

The utility model is further improved in that two ends of the water outlet pipe are fixed between the side wall of the partition board and the inner wall of the air floatation tank.

Compared with the prior art, the utility model has the beneficial effects that:

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. an air compressor; 2. an air flow meter; 3. a dissolved gas water pressure tank; 4. a clear water ejector; 5. a dissolved air pump; 6. A dissolved gas water flow meter; 7. an air floatation tank; 8. a water return pipe; 9. a water return port; 10. a slag scraper; 11. a sludge hopper; 12. a sewage draining hopper; 13. a water outlet pipe; 14. a water outlet; 15. a sludge tank; 16. a sewage tank; 17. a self-priming pump; 18. a wastewater flowmeter; 19. A dosing box; 20. a dosing ejector; 21. a separator.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1, a dissolved air flotation water treatment device, including air supporting pond 7 and sludge impoundment 16, the upper end of air supporting pond 7 is equipped with scrapes sediment machine 10, be equipped with an outlet pipe 13 in the air supporting pond 7, be equipped with a plurality of row of delivery port 14 on the outlet pipe 13, air supporting pond 7 is equipped with the dissolved air water overhead tank 3 with outlet pipe 13 intercommunication outward, be equipped with a wet return 8 and a baffle 21 in the air supporting pond 7, wet return 8 is located the top of outlet pipe 13, the side is equipped with two rows of return water mouths 9 around wet return 8, wet return 8 is through pipeline and dissolved air water overhead tank 3 intercommunication.

The upper part of the sewage tank 16 is communicated with the left lower end of the air floatation tank 7 through a self-priming pump 17 and a sewage flow meter 18.

A dosing ejector 20 is arranged on a pipeline communicated between the sewage flowmeter 18 and the air flotation tank 7, and the inlet end of the dosing ejector 20 is connected with a dosing tank 19.

A dissolved air pump 5 and a dissolved air water flowmeter 6 are arranged on a pipeline between the water return pipe 8 and the dissolved air water pressure tank 3.

The dissolved air water pressure tank 3 is also connected with an air compressor 1 and an air flow meter 2.

Example two:

on the basis of the first embodiment, the left upper end of the air flotation tank 7 is provided with a sludge hopper 11, the lower end of the air flotation tank 7 is provided with a plurality of sewage discharge hoppers 12, all the sewage discharge hoppers 12 are communicated with a sludge tank 15 arranged below the air flotation tank 7, and the sludge hopper 11 is connected with the sludge tank 15 through a pipeline.

Two ends of the water outlet pipe 13 are fixed between the side wall of the clapboard 21 and the inner wall of the air floatation tank 7.

The working principle is as follows:

the water return pipe supplies water for the water-soluble gas-water pressure tank, an external water source is not needed, the water return pipe is positioned right above the water outlet pipe, impurities contained in water sucked out by the water return pipe are few, water-soluble gas is formed in the water-soluble gas-water pressure tank, the water-soluble gas-water pressure tank leads in water-soluble gas-water to the air floatation tank through the water outlet pipe, suspended impurities are adsorbed in the ascending process, the density of the water-soluble gas-water pressure tank is reduced to float to the water surface, the water outlet pipe is not easy to block, and frequent cleaning is not needed. The utility model can continuously work for a longer time and has higher operation efficiency.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a dissolve gas air supporting water treatment facilities, includes air supporting pond (7), and air supporting pond (7) upper end is equipped with scrapes sediment machine (10), is equipped with an outlet pipe (13) in air supporting pond (7), is equipped with a plurality of delivery port (14) on outlet pipe (13), and air supporting pond (7) are equipped with outward dissolves gas water overhead tank (3) that communicate with outlet pipe (13), its characterized in that: a water return pipe (8) and a partition plate (21) are arranged in the air floatation tank (7), the water return pipe (8) is positioned above the water outlet pipe (13), two rows of water return ports (9) are arranged on the front side and the rear side of the water return pipe (8), and the water return pipe (8) is communicated with the dissolved air water pressure tank (3) through a pipeline;

the device also comprises a sewage tank (16), wherein the upper part of the sewage tank (16) is communicated with the left lower end of the air floatation tank (7) through a self-priming pump (17) and a sewage flow meter (18).

2. A dissolved air flotation water treatment apparatus as claimed in claim 1, wherein: the sludge treatment device is characterized in that a sludge hopper (11) is arranged at the upper left end of the air flotation tank (7), a plurality of sewage discharge hoppers (12) are arranged at the lower end of the air flotation tank (7), all the sewage discharge hoppers (12) are communicated with a sludge tank (15) arranged below the air flotation tank (7), and the sludge hopper (11) is connected with the sludge tank (15) through a pipeline.

3. A dissolved air flotation water treatment apparatus as claimed in claim 1, wherein: a dosing ejector (20) is arranged on a pipeline communicated between the sewage flowmeter (18) and the air flotation tank (7), and the inlet end of the dosing ejector (20) is connected with a dosing tank (19).

4. A dissolved air flotation water treatment apparatus as claimed in claim 1, wherein: and a dissolved air pump (5) and a dissolved air water flowmeter (6) are arranged on a pipeline between the water return pipe (8) and the dissolved air water pressure tank (3).

5. A dissolved air flotation water treatment apparatus as claimed in claim 1, wherein: the dissolved air water pressure tank (3) is also connected with an air compressor (1) and an air flow meter (2).

6. A dissolved air flotation water treatment apparatus as claimed in claim 1, wherein: and two ends of the water outlet pipe (13) are fixed between the side wall of the partition plate (21) and the inner wall of the air floatation tank (7).