CN104671321A - Efficient dissolved air flotation machine - Google Patents

Efficient dissolved air flotation machine Download PDF

Info

Publication number
CN104671321A
CN104671321A CN201510107181.2A CN201510107181A CN104671321A CN 104671321 A CN104671321 A CN 104671321A CN 201510107181 A CN201510107181 A CN 201510107181A CN 104671321 A CN104671321 A CN 104671321A
Authority
CN
China
Prior art keywords
air
dissolving
flotation machine
pipeline
supporting casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510107181.2A
Other languages
Chinese (zh)
Other versions
CN104671321B (en
Inventor
刘萍
王向东
柳国政
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAQING HIAYOUQING PETROLEUM TECHNOLOGY Co Ltd
Original Assignee
DAQING HIAYOUQING PETROLEUM TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DAQING HIAYOUQING PETROLEUM TECHNOLOGY Co Ltd filed Critical DAQING HIAYOUQING PETROLEUM TECHNOLOGY Co Ltd
Priority to CN201510107181.2A priority Critical patent/CN104671321B/en
Publication of CN104671321A publication Critical patent/CN104671321A/en
Application granted granted Critical
Publication of CN104671321B publication Critical patent/CN104671321B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention provides an efficient dissolved air flotation machine. The air flotation machine mainly comprises two air dissolving systems, an oil receiving pool, a mud scraping system and an output pump. A mud scraping machine of the air flotation machine adopts a stainless steel inner liner, a framework and a nylon chain, the strength of the chain is enhanced, and electric sparks are not easily generated. The air flotation machine is provided with an oil storage pool, and the technological process is reduced. The air flotation machine initiates double air dissolving systems, so that energy is saved, the processing effect can be improved, and the spare air dissolving system exists during breakdown maintenance. The air dissolving system of the air flotation machine are additionally provided with an air intake flow meter and an adjusting valve, so that the function of automatic adjustment of a gas liquid ratio can be realized, and the air dissolving efficiency is improved. An air dissolving tank of the air flotation machine is additionally provided with an automatic air exhausting device, so that the air dissolving effect is always kept in the best position. The sump oil and sludge systems of the air flotation machine share one pump for outputting, the cost is reduced, and the space is saved.

Description

High-efficiency dissolued-air air floatation machine
Technical field:
The present invention relates to technical field of sewage, is specifically related to high-efficiency dissolued-air air floatation machine.
Background technology:
For the suspended solid removed in various industry and municipal wastewater, the foreign material such as grease, if continue to use traditional intermediate processing, effect is inevitable very poor, especially in the winter time under cold condition, because coagulation and hydraulics become bad, treatment effect is more difficult to ensure card, the use of air floatation machine just in time can change this phenomenon, air floatation machine imports bubble in water, it is made to adhere on wadding grain, thus reduce the global density of wadding grain significantly, and borrow the speed that bubble rises, it is made to float by force, solid-liquid separation is fast realized with this, in this sense, the appearance of air floatation machine, it is the revolution to settling methods, it has been opened up and has consolidated, the frontier of liquid isolation technique, but general air floatation machine vapour-liquid ratio can not regulate automatically, manual shift vapour-liquid ratio is needed when operating mode changes, easily there is air in dissolving simultaneously, optimum gas liquor ratio can not be kept, affect air flotation effect.
Summary of the invention:
In order to solve the problem, the present invention is intended to propose a kind of high-efficiency dissolued-air air floatation machine.This air floatation machine dissolving adds automatic exhaust device, makes molten gas effect remain at optimum position; It is outer defeated that this air floatation machine sump oil, sludge system share a pump, reduces cost, saves space.
Technical scheme of the present invention is: high-efficiency dissolued-air air floatation machine comprises air supporting casing, air supporting casing is a square metal case with the end, release dividing plate is provided with along air buoyancy tank body length direction, the feed water flow gauge that release dividing plate connects near water-in, narrow wide hemi-closure space under release dividing plate is in tilted layout and makes to form one on the left of release dividing plate, release dividing plate top is provided with Oil scraper, with the end semi-enclosed drains receptacle that steel plate surrounds is had on the right side of Oil scraper, weir board was had to be connected with air supporting bottom half is airtight on the right side of drains receptacle, cross outside weir board and connect an outlet sump, rising pipe is connected outside outlet sump, one piece is had to be connected with riser is airtight on the right side of air supporting casing every mud plate below drains receptacle bottom base panel, mud scraper is provided with on the downside of mud plate,
Pipeline is had to connect output pump import bottom drains receptacle, air supporting bottom half bottom mud scraper has pipeline to connect output pump import, two-way connects output pump inlet pipeline and is all serially connected with electrical ball valve, pipeline is had to connect air dissolved pump import every the weir board bottom of crossing of the above position of mud plate, connect side on air dissolved pump inlet pipeline and be connected to auto-admission variable valve and vacuum meter, air dissolved pump exports two-way pipeline in parallel and connects dissolving, the pipeline of every road connection dissolving is serially connected with motor-driven control valve respectively, circulating water flow gauge, vacuum breaker and trip valve, each dissolving is all provided with automatic exhaust device and tensimeter, two dissolving outlet parallel connections are that a road pipeline enters on the upside of the inlet pipe of air supporting casing.
The highest point crossing weir board in said apparatus is lower than drains receptacle import weir plate 10 ~ 15mm; Drains receptacle top is provided with ultrasonic level gage; Wash water valve is provided with bottom dissolving; Release dividing plate height be the total height of air supporting casing 3/4 ~ 7/8 between; The nylon chain of the inner liner stainless steel skeleton of Oil scraper chain strip adoption customization.
The present invention has following beneficial effect: because this air floatation machine sump oil system Oil scraper adopts stainless steel lined skeleton nylon chain, chain strength is strengthened and not easily produces electrical spark again; Because this air floatation machine utilizes its idle space to arrange drains receptacle, reduce process procedure; This air floatation machine initiates the molten gas of form adopting two air dissolving systems, can reach energy-conservation effect and can improve water treatment efficiency again, break down maintenance time, air dissolving system for subsequent use can also be had to work on; Because this air floatation machine air dissolving system adds inlet air flow gauge and variable valve, the self-adjustable function of vapour-liquid ratio can be realized, improve molten gas efficiency; Because this air floatation machine dissolving adds automatic exhaust device, can ensure that dissolved air water keeps optimal liquid level in tank, ensure maximum gas-to-liquid contact space, ensure molten tolerance and molten gas effect; Because this air floatation machine sump oil, sludge system share outside a pump defeated, reduction technical process, reduces cost, saves space.
Accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is the outside drawing of accompanying drawing 1.
1-air supporting casing in figure, 2-Oil scraper, 3-drains receptacle, 4-ultrasonic level gage, 5-crosses weir board, 6-outlet sump, 7-rising pipe, and 8-is every mud plate, 9-mud scraper, 10-discharges dividing plate, 11-feed water flow gauge, 12-air dissolved pump, 13-auto-admission variable valve, 14-electrical ball valve, 15-output pump, 16-wash water valve, 17-vacuum meter, 18-motor-driven control valve, 19-circulating water flow gauge, 20-automatic exhaust device, 21-dissolving, 22-tensimeter.
Embodiment:
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in Fig. 1 composition graphs 2, high-efficiency dissolued-air air floatation machine comprises air supporting casing 1, air supporting casing 1 is a square metal case with the end, release dividing plate 10 is provided with along air supporting casing 1 length direction, the feed water flow gauge 11 that release dividing plate 10 connects near water-in, narrow wide hemi-closure space under release dividing plate 10 is in tilted layout and makes to form one on the left of release dividing plate 10, release dividing plate 10 top is provided with Oil scraper 2, the with the end semi-enclosed drains receptacle 3 having steel plate to surround on the right side of Oil scraper 2, Oil scraper 2 by the oil that floats in air supporting casing 1 and dirt-collecting in drains receptacle 3, weir board 5 was had to be connected with airtight bottom air supporting casing 1 on the right side of drains receptacle 3, cross outside weir board 5 and connect an outlet sump 6, rising pipe 7 is connected outside outlet sump 6, one piece is had to be connected with riser is airtight on the right side of air supporting casing 1 every mud plate 8 below drains receptacle 3 bottom base panel, mud scraper 9 is provided with on the downside of mud plate 8, the sludge scraping be sunken at the bottom of pond to sludge sump carries out outer defeated by mud scraper 9.
Pipeline is had to connect output pump 15 import bottom drains receptacle 3, pipeline is had to connect output pump 15 import bottom air supporting casing 1 bottom mud scraper 9, two-way connects output pump 15 inlet pipeline and is all serially connected with electrical ball valve 14, pipeline is had to connect air dissolved pump 12 import every weir board 5 bottom of crossing of mud plate more than 8 position, connect side on air dissolved pump 12 inlet pipeline and be connected to auto-admission variable valve 13 and vacuum meter 17, air dissolved pump 12 exports two-way pipeline in parallel and connects dissolving 21, the pipeline of every road connection dissolving 21 is serially connected with motor-driven control valve 18 respectively, circulating water flow gauge 19, vacuum breaker and trip valve, each dissolving 21 is all provided with automatic exhaust device 20 and tensimeter 22, it is that a road pipeline enters on the upside of the inlet pipe of air supporting casing 1 that two dissolvings 21 export parallel connection.Be provided with wash water valve 16 bottom dissolving 21, the dirt bottom dissolving 21 is discharged by wash water valve 16.
Cross the highest point of weir board 5 lower than drains receptacle 3 import weir plate 10 ~ 15mm, to ensure through crossing the current liquid level of weir board 5 higher than flowing through drains receptacle 3 inlet liquid level, because crude oil is less than the density of water, crude oil swims on the water surface, the sewage that layout like this can make Oil scraper 2 only can strike off floating superincumbent crude oil and can not strike off in air supporting casing 1, ensure the low-water-content of crude oil, make air flotation effect reach best.
Drains receptacle 3 top is provided with ultrasonic level gage 4, and the liquid level signal in the drains receptacle 3 detected is passed to output pump 15 by ultrasonic level gage 4, and output pump 15 determines whether work according to this signal.
The time of releasing of dissolved air water and release areas diameter have influence on the total amount of the pollutent entrained by dissolved air water, big area discharges, can make dissolved air water and former water mixing uneven and reduce air supporting quality, dissolved air water release fine gas bubbles can be made soon also not have complete Residual contamination thing namely to rise to liquid level break, reduce the service efficiency of dissolved air water, release dividing plate 10 height be the total height of air supporting casing 1 3/4 ~ 7/8 between, to ensure molten gas time of releasing, the saturated molten gas-liquid that air dissolved pump 12 is carried enters air supporting casing 1 and discharges above water inlet pipe, mix with the water inlet of water inlet pipe, slowly rise in the semi-open space formed between release dividing plate 10 and air supporting casing 1, fine suspension in sewage, crude oil and machine are mixed in the absorption of fine gas bubbles, along with bubble rises to liquid level under adhesion effect, release dividing plate 10 ensure that time of releasing and the delivery pathways of dissolved air water, to reach best molten gas, air flotation effect.
Former water makes the free oil in sewage through three-phase separating system, solid particulate is separated with water, Partial cleansing water is through air dissolving system air dissolved pump 12 pressure air-dissolving, molten gas saturation water is formed in dissolving 21, molten gas saturation water declines suddenly through relief pressure, form the liquid carrying a large amount of nano level microbubble, finally enter water tank, mix with sewage, microbubble adheres to the solid of hydrophobic group in sewage or liquid particle and forms floating matter and scraped to drains receptacle 3 by Oil scraper 2, the mud be sunken at the bottom of pond is scraped to sludge sump by mud scraper 9, and floating matter and mud carry out outer defeated.
Air supporting top frizing adopts Oil scraper 2 to scrape oil form, sprocket wheel chain is driven under the power of motor, by oil scraping plate, the floating matter floating on fluid surface under air supporting effect is scraped in drains receptacle 3, process to be recycled, the nylon chain of inner liner stainless steel skeleton of Oil scraper 2 chain strip adoption customization, the spark that this Novel chain not only avoids metal friction to produce but also the shortcoming avoiding nylon chain easy fracture.
This application type three-phase separating system mainly contains air supporting casing 1 and drains receptacle 3 two portions composition.Under the condition not changing air supporting physical dimension, this device carries drains receptacle 3, and the sump oil that Oil scraper 2 is collected stores in the drains receptacle 3 of equipment self, and outer blowdown oil, without the need to separately establishing storage tank, has the advantages that structure simply reduces technical process automatically.
Airfloat equipment has two and overlaps independently air dissolving system, often overlap air dissolving system to be made up of dissolving 21, automatic exhaust device 20, circulating water flow gauge 19 and motor-driven control valve 18 respectively, when sewage quality is poor, improve reflux ratio, two cover air dissolving systems can be opened simultaneously and produce microbubble, improve treatment effect; When sewage quality is within the scope of normal processing, open a set of air dissolving system work, save power consumption, with timer generation blocking or when needing repairing, available other a set of reliever continues to produce micro bubble, does not affect water treatment progress.
Air dissolving system adds motor-driven control valve 18 and auto-admission variable valve 13, and can to realize gas-liquid adjustable, and after upper computer agreement air supporting ratio, the auto-admission variable valve 13 of dissolving 21 according to the data feedback of feed water flow gauge 11, can regulate air dissolving system air input automatically.
Dissolving 21 of the present invention adds automatic exhaust device 20, dissolving 21 liquid level is with entering increasing and reducing of gas, when liquid level drops to optimum height, now can not discharged from automatic exhaust device 20 to the gas in water by molten, thus make liquid level remain on optimum height always, ensure maximum gas-to-liquid contact space, increase molten tolerance and molten gas effect.
Frizing, the oil extraction spoil disposal electrical ball valve 14 scraping mud system and ultrasonic level gage 4 are chain, and it is alternately outer defeated that a shared output pump 15 carries out interval, reduces cost, saving space.

Claims (6)

1. a high-efficiency dissolued-air air floatation machine, comprise air supporting casing (1), it is characterized in that: air supporting casing (1) is a square metal case with the end, release dividing plate (10) is provided with along air supporting casing (1) length direction, the feed water flow gauge (11) that release dividing plate (10) connects near water-in, narrow wide hemi-closure space under release dividing plate (10) is in tilted layout and makes release dividing plate (10) left side form one, release dividing plate (10) top is provided with Oil scraper (2), with the end semi-enclosed drains receptacle (3) that Oil scraper (2) right side has steel plate to surround, drains receptacle (3) right side had weir board (5) to be connected with air supporting casing (1) bottom is airtight, cross weir board (5) outside and connect an outlet sump (6), outlet sump (6) outside connects rising pipe (7), one piece is had to be connected with riser is airtight on the right side of air supporting casing (1) every mud plate (8) below drains receptacle (3) bottom base panel, mud scraper (9) is provided with every mud plate (8) downside,
Drains receptacle (3) bottom has pipeline to connect output pump (15) import, air supporting casing (1) bottom of mud scraper (9) bottom has pipeline to connect output pump (15) import, two-way connects output pump (15) inlet pipeline and is all serially connected with electrical ball valve (14), pipeline is had to connect air dissolved pump (12) import every weir board (5) bottom of crossing of mud plate (8) above position, connect side on air dissolved pump (12) inlet pipeline and be connected to auto-admission variable valve (13) and vacuum meter (17), air dissolved pump (12) exports two-way pipeline in parallel and connects dissolving (21), the pipeline of every road connection dissolving (21) is serially connected with motor-driven control valve (18) respectively, circulating water flow gauge (19), vacuum breaker and trip valve, each dissolving (21) is all provided with automatic exhaust device (20) and tensimeter (22), two dissolving (21) outlet parallel connections are that a road pipeline enters on the upside of the inlet pipe of air supporting casing (1).
2. high-efficiency dissolued-air air floatation machine according to claim 1, is characterized in that: cross the highest point of weir board (5) lower than drains receptacle 3 import weir plate 10 ~ 15mm.
3. high-efficiency dissolued-air air floatation machine according to claim 2, is characterized in that: drains receptacle (3) top is provided with ultrasonic level gage (4).
4. high-efficiency dissolued-air air floatation machine according to claim 3, is characterized in that: dissolving (21) bottom is provided with wash water valve (16).
5. high-efficiency dissolued-air air floatation machine according to claim 4, is characterized in that: release dividing plate (10) height be the total height of air supporting casing 1 3/4 ~ 7/8 between.
6. high-efficiency dissolued-air air floatation machine according to claim 5, is characterized in that: the nylon chain of the inner liner stainless steel skeleton of Oil scraper (2) chain strip adoption customization.
CN201510107181.2A 2015-03-12 2015-03-12 High-efficiency dissolued-air air floatation machine Active CN104671321B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510107181.2A CN104671321B (en) 2015-03-12 2015-03-12 High-efficiency dissolued-air air floatation machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510107181.2A CN104671321B (en) 2015-03-12 2015-03-12 High-efficiency dissolued-air air floatation machine

Publications (2)

Publication Number Publication Date
CN104671321A true CN104671321A (en) 2015-06-03
CN104671321B CN104671321B (en) 2016-11-30

Family

ID=53306984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510107181.2A Active CN104671321B (en) 2015-03-12 2015-03-12 High-efficiency dissolued-air air floatation machine

Country Status (1)

Country Link
CN (1) CN104671321B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108970186A (en) * 2018-06-06 2018-12-11 苏州耀水源环境科技有限公司 A kind of sedimentation basin scrapes mud oil-scraping device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0695719A1 (en) * 1994-08-04 1996-02-07 George C. Yeh Method and apparatus for dissolved air flotation and similar gas-liquid contacting operations
CN2866475Y (en) * 2006-01-20 2007-02-07 中国石油天然气集团公司 Efficient dissolved air floatation machine
CN201694865U (en) * 2010-08-18 2011-01-05 浙江博华环境技术工程有限公司 Novel vortex flow dissolved air floatation system
CN202912796U (en) * 2012-12-03 2013-05-01 中国石油天然气股份有限公司 Flushing water treatment device for oilfield water injection system
CN103936093A (en) * 2014-05-12 2014-07-23 辽宁华霆环保科技有限公司 High-efficiency dissolved air flotation system
CN204490556U (en) * 2015-03-12 2015-07-22 大庆市海油庆石油科技有限公司 High-efficiency dissolued-air air floatation machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0695719A1 (en) * 1994-08-04 1996-02-07 George C. Yeh Method and apparatus for dissolved air flotation and similar gas-liquid contacting operations
CN2866475Y (en) * 2006-01-20 2007-02-07 中国石油天然气集团公司 Efficient dissolved air floatation machine
CN201694865U (en) * 2010-08-18 2011-01-05 浙江博华环境技术工程有限公司 Novel vortex flow dissolved air floatation system
CN202912796U (en) * 2012-12-03 2013-05-01 中国石油天然气股份有限公司 Flushing water treatment device for oilfield water injection system
CN103936093A (en) * 2014-05-12 2014-07-23 辽宁华霆环保科技有限公司 High-efficiency dissolved air flotation system
CN204490556U (en) * 2015-03-12 2015-07-22 大庆市海油庆石油科技有限公司 High-efficiency dissolued-air air floatation machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
彭党聪: "《水污染控制工程实践教程》", 30 June 2004, 化学工业出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108970186A (en) * 2018-06-06 2018-12-11 苏州耀水源环境科技有限公司 A kind of sedimentation basin scrapes mud oil-scraping device

Also Published As

Publication number Publication date
CN104671321B (en) 2016-11-30

Similar Documents

Publication Publication Date Title
CN202054680U (en) Sedimentation and bubble floatation integrated water treatment equipment
CN105855067B (en) A kind of unpowered flotation device
CN203474569U (en) Combined cavitation-air floatation equipment
CN202482103U (en) Ultrasonic air floatation oil removing device
CN106904680A (en) A kind of air floatation machine
CN104341021A (en) Progressive air floatation apparatus
CN103224299A (en) Oily sewage oil-skimming and deslagging system
CN204490556U (en) High-efficiency dissolued-air air floatation machine
CN101613164A (en) Inclined tube floating device for waste water treatment
CN202968187U (en) Cavitation type air floatation machine
CN104671321A (en) Efficient dissolved air flotation machine
CN201722171U (en) Air flotation sewage treatment unit
CN207567019U (en) Coagulation air-float structure
CN203474498U (en) Progressive type air-flotation device
CN203754460U (en) Power-free deslagging floatation device
CN103466737A (en) Floatation equipment
CN203513389U (en) Chemical oil removal inclined pipe precipitator
CN204151100U (en) Air-flotation separation equipment
CN204097283U (en) Air supporting integrated device for biochemical treatment
CN202880951U (en) Novel jet air floating device
CN202912796U (en) Flushing water treatment device for oilfield water injection system
CN207811313U (en) A kind of gas floatation separation device of long weir water outlet
CN202688031U (en) Novel air floatation device
CN104941263A (en) Inclined tube concentration box
CN207031014U (en) A kind of new batch-type air-dissolving air-float equipment for separating liquid from solid

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant