CN202054680U

CN202054680U - Sedimentation and bubble floatation integrated water treatment equipment

Info

Publication number: CN202054680U
Application number: CN2011201555911U
Authority: CN
Inventors: 戴文强; 邵连兴
Original assignee: WUXI BENYUE ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
Current assignee: Wuxi Hi-Tech Environmental Protection Equipment Technology Co., Ltd.
Priority date: 2011-05-11
Filing date: 2011-05-11
Publication date: 2011-11-30
Anticipated expiration: 2021-05-11

Abstract

The utility model provides sedimentation and bubble floatation integrated water treatment equipment, which is capable of overcoming defects of the existing sewage treatment process and equipment, and effectively combining the bubble floatation separation method with the sedimentation separation method (same flow oblique board sedimentation). The equipment is short in process procedures, capable of simultaneously removing suspended substances close to water in density and poorer in sedimentation performance and suspended substances larger than water in density and better in sedimentation performance, free of secondary pollution and easy to operate. The sedimentation and bubble floatation integrated water treatment equipment is characterized by comprising a pool, a reverse chained plate type sediment scraping mechanism, a same flow oblique board component, a water level control plate, a micro bubble generator, a backflow water pump and a dissolved gas releaser. The pool is connected with the micro bubble generator through a pipeline, a sewage inlet and a clear water outlet are arranged on two sides of the pool respectively, the reverse chained plate type sediment scraping mechanism is fixed to the top of the pool, the water level control plate is mounted at the top of one side of the pool, the same flow oblique board component is mounted on a support fixed in the middle of the pool, and the dissolved gas releaser is mounted on the lower portion of the pool close to the sewage inlet.

Description

Rectification precipitation-air-flotation water treatment device

Technical field

The invention belongs to technical field of waste water processing, relate to wastewater treatment equipment, the treatment unit that especially a kind of air supporting treatment unit combines with the precipitation process device.

Background technology

In water supply and drainage treatment process program, solid, liquid isolation technique and equipment thereof are one of key projects.For the removal of small suspended particle in the liquid, the most frequently used method has settlement separate, and sieve membrane separates, technology and equipment such as dissolved air flotation.Sedimentation, sieve membrane, flotation are adopted various technical process under different separately working conditions, every kind of method all has characteristics and deficiency separately, can not repel mutually, also can't substitute.The dissolved air flotation method is mainly used in partition density and the near suspended matter of water, and in the waste water of suspended substance sedimentation poor-performing.Settlement separate method is mainly used in the suspended matter of partition density greater than water, and in the waste water of suspended substance sedimentation better performances.

The dissolved air flotation method be with air and water under certain pressure and condition, make gas dissolve in the water to the utmost, then formed pressure air-dissolving water is passed through the dissolved air release release of pressure, produce a large amount of microbubbles and the suspended substance in the water (through the flocs unit after the dosing) rapidly and form a stable gas enclosure flco, its volume density is less than water, therefore the gas enclosure flco rises to the water surface very soon, and suspended substance gathers into scum silica frost at the liquid level knot, and scum silica frost is scraped the purpose that collection has promptly reached solid-liquid separation.

The sloping plate deposition pool technologies that adopt in the precipitation separation more.Inclined-plate clarifying basin is to grow up on the basis of " shallow pool theory ", compare with traditional horizontal sedimentation tank have the surface load height, clearance height, advantage such as the residence time is short, floor space is little.By the relativeness between water (flow) direction and the particulate precipitation direction, inclined-plate clarifying basin can be divided into following type

(1) lateral flow inclined plate sedimentation pond, water (flow) direction is vertical mutually with the solids precipitation direction

(2) same flow oblique board sedimentation basin, water and mud flow downward jointly, cause the easier sludge bucket that is slipped to of mud, can significantly improve the precipitation surface load.

(3) incorgruous flow inclined plate sedimentation pond,, water (flow) direction and solids precipitation direction are reverse mutually, cause mud to be not easy to be slipped in the sludge bucket, easily along with water outlet is taken away.

In Sewage treatment systems, some sewage contains the suspended matter of the near and suspended substance sedimentation poor-performing of density and water and the density suspended matter greater than water and suspended substance sedimentation better performances simultaneously.Because contain this two kinds of antipodal suspended matters of character simultaneously, when only using air supporting, at the bottom of the air flotation pool sedimentation a large amount of suspended matters taken away by the air supporting water outlet, severe exacerbation the air supporting water outlet, air-float technology was lost efficacy.If only use depositing technology, the settling tank surface will be taken away in the precipitated water outlet of floating a large amount of suspended matter, and the severe exacerbation precipitated outlet water makes depositing technology lose efficacy when serious.Because wastewater property by the decision of various sewage treatment process, is the production process decision that is produced waste water by factory, corresponding sewage treatment process must adapt to this variation.We have developed the rectification precipitation-air-flotation water treatment device that dissolved air flotation method and precipitation separation (same flow oblique board sedimentation) combine for this reason.

Summary of the invention

The objective of the invention is to overcome the deficiency in existing sewage treatment process and the equipment, with dissolved air flotation method and effectively combination of precipitation separation (same flow oblique board sedimentation), provide a kind of technical process short, can be closely and the suspended matter of suspended substance sedimentation poor-performing with density and water, remove simultaneously greater than the suspended matter of water and suspended substance sedimentation better performances with density, non-secondary pollution, the rectification precipitation-air-flotation reason device of easy handling.

According to technical scheme provided by the invention, a kind of rectification precipitation-air-flotation water treatment device is characterized in that being made up of pond body, the board-like slag scraping mechanism of reverse strand, concurrent type sloping plate component, water level switchboard, microbubble generator, backflow water pump and dissolved air release.The pond body is in the same place by pipe connection with microbubble generator; Body two sides in pond are respectively arranged with sewage import and clear water output; The board-like slag scraping mechanism of reverse strand is fixed on body top, pond, and the water level switchboard is installed in the top of pond body one side, and the concurrent type sloping plate component is installed on the bracing frame that is fixed in body middle part, pond, and dissolved air release is installed in the body bottom, pond near sewage ingress.Described concurrent type sloping plate component is made of a plurality of monolithic type sloping plate components, and the monolithic type sloping plate component is made up of swash plate and strut member, and strut member is vertically fixed on the swash plate.

Description of drawings

Fig. 1 is a rectification precipitation-air-flotation water treatment device structural representation

Fig. 2 is a monolithic type sloping plate component front view

Fig. 3 is a monolithic type sloping plate component side-view

Fig. 4 is a monolithic type sloping plate component vertical view

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

As shown in drawings:

The import of 1-sewage, 2-scum silica frost discharge outlet, 3-pond body, the board-like slag scraping mechanism of 4-reverse strand, 5-concurrent type sloping plate component, 6-bracing frame, 7-clear water collection channel, 8-water level switchboard, 9-clear water output, 10-pipeline, 11-microbubble generator, 12-backflow water pump, 13-precipitating sludge discharge outlet, 14-dissolved air release, 15-swash plate, 16-strut member

As shown in the figure

Pond body 3 and microbubble generator 11 link together by backflow water pump 12 and pipeline valve 10, the board-like slag scraping mechanism 4 of reverse strand is fixed on pond body 3 tops, water level switchboard 8 is positioned at the upper end of pond body 3 one sides, and concurrent type sloping plate component 5 is positioned at pond body 3 middle parts and is installed on the bracing frame 6 that is fixed on the pond body 3.Concurrent type sloping plate component 5 is made of many groups monolithic type sloping plate component, and the monolithic type sloping plate component is formed by swash plate 15 and strut member 16 overlap joints.

Microbubble generator 11 utilize under the effect of backflow water pump 12 jet current principle with air and water under certain pressure and condition, make gas dissolve in the water to the utmost, make every effort to be in state of saturation, then formed pressure air-dissolving water is produced a large amount of microbubbles by dissolved air release 14.Sewage flows into the air water mixing contact area of pond body 3 through sewage import 1, sewage fully contacts the gas enclosure flco of formation specific density less than water with the microbubble that dissolved air release 14 produces in this is interval, its volume density is less than water, along with the flotation separation zone that flows on the current direction in the pond body 3, the gas enclosure flco rises to water surface knot very soon and gathers into scum silica frost.Scum silica frost is collected the scum silica frost collecting region in the pond body 3 under the effect of the board-like slag scraping mechanism 4 of reverse strand, regularly discharged by scum silica frost discharge outlet 2.In the flotation separation zone, remove most suspended substance, reached the purpose of solid-liquid separation.The fine suspension that part does not float to liquid level is along with the concurrent type sloping plate component 5 in the flow direction pond body 3, and flco has been finished last sepn process in this assembly.Sepn process is as follows; One, the current that flow downward are because the effect of swash plate has become laminar flow, and current are highly stable, are beneficial to the come-up of suspended substance.Two, the tiny flco come-up that between swash plate, can reassemble.Three, proportion is deposited in greater than the suspended substance of water and finishes solid-liquid separation on the swash plate.Along with the promotion of current slowly is slipped in the precipitating sludge collecting region in the pond body 3, regularly discharge by precipitating sludge discharge outlet 13.The depositing separation area that current pass in inflow pond, the concurrent type sloping plate component 5 back body 3 gathers the clear water collecting region that the back flows in the pond bodies 3 by clear water collection channel 7, clear water is in this interval, and a part flows downward to be taken away to squeeze in the microbubble generator 11 by backflow water pump 12 and produces dissolved air water.Another part upwards flows into clear water output 9 dischargings.

Claims

1. a rectification precipitation-air-flotation water treatment device is characterized in that being made up of pond body, the board-like slag scraping mechanism of reverse strand, concurrent type sloping plate component, water level switchboard, microbubble generator, backflow water pump and dissolved air release; The pond body is in the same place by pipe connection with microbubble generator, body two sides in pond are respectively arranged with sewage import and clear water output, the board-like slag scraping mechanism of reverse strand is fixed on body top, pond, the water level switchboard is installed in the top of pond body one side, the concurrent type sloping plate component is installed on the bracing frame that is fixed in body middle part, pond, and dissolved air release is installed in the body bottom, pond near sewage ingress.

2. according to the described rectification precipitation-air-flotation of claim 1 water treatment device, it is characterized in that described concurrent type sloping plate component is made of a plurality of monolithic type sloping plate components, the monolithic type sloping plate component is made up of swash plate and strut member, and strut member is vertically fixed on the swash plate.