CN210140508U - Novel air floatation machine - Google Patents

Novel air floatation machine Download PDF

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Publication number
CN210140508U
CN210140508U CN201920929515.8U CN201920929515U CN210140508U CN 210140508 U CN210140508 U CN 210140508U CN 201920929515 U CN201920929515 U CN 201920929515U CN 210140508 U CN210140508 U CN 210140508U
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China
Prior art keywords
air
sewage
hollow fiber
fiber membrane
slag
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CN201920929515.8U
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Chinese (zh)
Inventor
何若平
陈喜梅
何青
方传宝
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Nanjing Nine Environmental Protection Technology Co Ltd
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Nanjing Nine Environmental Protection Technology Co Ltd
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Abstract

The utility model relates to a novel air floatation machine, which comprises an air floatation tank, a sewage inlet system, an air floatation system and a slag discharge device, wherein the sewage inlet system and the air floatation system are respectively connected with the air floatation tank, the slag discharge device is arranged above the air floatation tank, the lower end of the air floatation tank is also provided with a water outlet, and the water outlet is provided with a valve; the sewage water inlet system comprises a sewage tank, a sewage pump and a chemical dosing tank, and sewage added with chemicals is pumped into the air floatation tank through the sewage pump; the air floatation system comprises an air compressor, an air filter and a hollow fiber membrane, wherein the air compressor is connected with the inlet end of the air filter, the outlet end of the air filter is connected with the hollow fiber membrane, the hollow fiber membrane is arranged at the bottom of the air floatation tank, air is pressed into the air filter by the air compressor to be filtered and then enters the hollow fiber membrane, the air is released by the hollow fiber membrane to be combined with suspended matters in sewage, floating slag is formed on the surface of the floating liquid, and the floating slag is discharged by a slag discharge device; the air floatation machine has the advantages of simple structure, low energy consumption, difficult blockage, high safety and low cost.

Description

Novel air floatation machine
Technical Field
The utility model relates to an air supporting machine belongs to sewage treatment technical field.
Background
The air floatation machine is one of important equipment in sewage treatment engineering, and is used for separating colloid, opal, grease, suspended matters and the like in sewage. The air floating machine is water treatment equipment which generates a large amount of micro bubbles in water by an air dissolving system, leads air to be attached to suspended particles in a highly dispersed micro bubble form to cause the state that the density is less than that of the water, and leads the air to float on the water surface by utilizing the buoyancy principle, thereby realizing solid-liquid separation. The air flotation machine is divided into a super-efficient shallow air flotation machine, a cavitation air flotation machine and a horizontal flow type air flotation machine. At present, the method is applied to the aspects of water supply, industrial wastewater and municipal sewage treatment. The air floatation machine has the advantages that the solid-liquid separation equipment has the characteristics of low investment, extremely small floor area, high automation degree, convenient operation and management and the like.
The horizontal flow type pressurized dissolved air flotation machine is one of the air flotation machines, which dissolves a large amount of air in water under certain conditions to form dissolved air water as a working medium, and suddenly reduces the pressure through a releaser, quickly releases the dissolved air water to generate a large amount of micro bubbles to be adhered to alum floc in waste water after coagulation reaction, so that the floc quickly floats upwards, thereby quickly removing pollutants in the water and achieving the purpose of purifying the water.
However, the currently used advection type pressurized dissolved air flotation machine also has a plurality of disadvantages: the structure is complicated: a dissolved air tank, a releaser, a dissolved air pump and the like are required to be configured; the energy consumption is high, and the lift of the dissolved air pump is generally required to be more than 50 m; easy blockage: dissolved air tanks and releasers are easily blocked by solids in water; potential safety hazard: the dissolved air tank is a pressure vessel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a novel air supporting machine, this air supporting machine simple structure, the energy consumption is low, difficult jam, and the security is high, low cost.
In order to solve the technical problem, the utility model provides a novel air floatation machine, which comprises an air floatation tank, a sewage inlet system, an air floatation system and a slag discharge device, wherein the sewage inlet system and the air floatation system are respectively connected with the air floatation tank;
the sewage water inlet system comprises a sewage tank, a sewage pump and a chemical dosing tank, and sewage added with chemicals is pumped into the air floatation tank through the sewage pump;
the air flotation system comprises an air compressor, an air filter and a hollow fiber membrane, the air compressor is connected with the inlet end of the air filter, the outlet end of the air filter is connected with the hollow fiber membrane, the hollow fiber membrane is arranged at the bottom of the air flotation tank, air is pressed into the air filter by the air compressor to be filtered and then enters the hollow fiber membrane, the air enters the hollow fiber membrane after being released by the hollow fiber membrane to be combined with suspended matters in sewage, scum is formed on the surface of the floated liquid, and the scum is discharged by a scum discharge.
The utility model discloses the technical scheme who further injects is:
further, among the aforesaid novel air supporting machine, arrange the sediment device and include sprocket, chain and scraper blade, two sprocket symmetries set up in the top in air supporting pond, link to each other through the chain between two sprockets, and the equipartition several has the scraper blade on the chain, and one side of one of them sprocket is connected with the motor through the chain, and the bottom of another sprocket is equipped with the scum groove, arranges the vertical sediment ware of scraping that is equipped with in the scum groove, wherein:
the slag scraper consists of a fixed column, a slag scraping inclined plate and a brush, wherein the fixed column is vertically arranged in the slag discharge groove, the slag scraping inclined plate is arranged at the top end of the fixed column, and the brush is vertically arranged on one side of the top end of the slag scraping inclined plate;
the slag scraping inclined plate is made of rubber, and an included angle between the slag scraping inclined plate and the fixed column is an obtuse angle.
The technical effect is that when the scraper scrapes the scum on the liquid surface, the scum drops into the scum discharging groove incompletely and is brought into the air floatation tank again, so that the time and efficiency of sewage treatment are increased;
the slag scraping inclined plate in the slag scraper is made of rubber, and the scraping plate cannot be blocked due to the elasticity of the rubber when passing through, so that the slag scraping inclined plate and the hairbrush can scrape when contacting with the surface of the scraping plate, and the scraped floating slag can be ensured to fall into the slag discharge groove;
scrape and be the obtuse angle between sediment hang plate and the fixed column, the adjustment is scraped and is paralleled between sediment hang plate and the scraper blade that the motion came as far as possible, does not give the excessive resistance of scraper blade, can hang totally to the dross simultaneously again.
In the novel air floatation machine, the hollow fiber membrane is a PVDF hollow fiber membrane.
The technical effect, the utility model discloses a PVDF hollow fiber membrane, it has good chemical resistance and oxidation resistance, separates with hollow fiber membrane, greatly reduced cost.
In the novel air floatation machine, the hollow fiber membrane is 0.02-0.3 micron.
The technological effect, the size of serious control bubble can effectively realize the separation problem, the utility model discloses the size of selecting can make the dross not sink in the certain time, and the separation of being convenient for improves work efficiency.
The utility model has the advantages that:
the utility model does not adopt the common dissolved air tank, releaser, dissolved air pump, etc., but replaces the dissolved air tank, the releaser and the dissolved air pump with an air compressor, an air filter and a hollow fiber membrane, has simple structure, because the original dissolved air tank, releaser and dissolved air pump have complicated structures and the dissolved air pump has high energy consumption, the lift is required to be more than 50m, the dissolved air tank and the releaser are easily blocked by solids in water, the maintenance intensity is greatly increased, the working efficiency is influenced, the safety of the pressure container of the dissolved air tank is poor, the combination of the air compressor, the air filter and the hollow fiber membrane of the utility model avoids the defects on the premise of achieving the sewage treatment effect, after the air compressor, an air filter is adopted to firstly remove partial solid impurities, dust and other impurities in the air, the final bubble impurity for sewage treatment is less, more impurities are avoided from being brought to the sewage, and the sewage treatment efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the slag scraper in FIG. 1;
in the figure, 1-an air flotation tank, 2-a water discharge port, 3-a sewage tank, 4-a sewage pump, 5-a dosing tank, 6-an air compressor, 7-an air filter, 8-a hollow fiber membrane, 9-a chain wheel, 10-a chain, 11-a scraping plate, 12-a motor, 13-a slag discharge groove, 14-a slag scraper, 141-a fixed column, 142-a slag scraping inclined plate and 143-a brush.
Detailed Description
Example 1
The structure of the novel air flotation machine provided by this embodiment is shown in fig. 1-2, and comprises an air flotation tank 1, a sewage inlet system, an air flotation system, and a slag discharge device, wherein the sewage inlet system and the air flotation system are respectively connected to the air flotation tank 1, the slag discharge device is disposed above the air flotation tank 1, the lower end of the air flotation tank 1 is further provided with a water discharge port 2, the water discharge port 2 is provided with a valve,
the sewage water inlet system comprises a sewage tank 3, a sewage pump 4 and a chemical dosing tank 5, and sewage added with chemicals is pumped into the air floatation tank 1 through the sewage pump 4;
the air floatation system comprises an air compressor 6, an air filter 7 and a hollow fiber membrane 8, wherein the air compressor 6 is connected with the inlet end of the air filter 7, the outlet end of the air filter 7 is connected with the hollow fiber membrane 8, the hollow fiber membrane 8 is arranged at the bottom of the air floatation tank 1, the air compressor 6 presses air into the air filter 7 for filtration, then the air enters the hollow fiber membrane 8, is released by the hollow fiber membrane 8 to be combined with suspended matters in sewage, the floated liquid surface forms scum, and the scum is discharged by a scum discharge device;
arrange sediment device structure as shown in fig. 2 including sprocket 9, chain 10 and scraper blade 11, two sprocket 9 symmetries set up in the top of air supporting pond 1, link to each other through chain 10 between two sprocket 9, and the equipartition several has scraper blade 11 on the chain 10, and one side of one of them sprocket 9 also is connected with motor 12 through the chain, and the bottom of another sprocket 9 is equipped with slag discharging groove 13, and vertical one that is equipped with in the slag discharging groove 13 scrapes sediment ware 14, wherein:
the slag scraper 14 consists of a fixed column 141, a slag scraping inclined plate 142 and a brush 143, wherein the fixed column 141 is vertically arranged in the slag discharge groove 13, the slag scraping inclined plate 142 is arranged at the top end of the fixed column 141, and the brush 143 is vertically arranged on one side of the top end of the slag scraping inclined plate 142;
the slag scraping inclined plate 142 is a rubber inclined plate, and an included angle between the slag scraping inclined plate 142 and the fixed column 141 is an obtuse angle.
In the present embodiment, the hollow fiber membrane 8 is a PVDF hollow fiber membrane, and the hollow fiber membrane 8 is 0.02 to 0.3 μm.
When the device is used specifically, after a dosing tank is used for dosing, sewage with the drug is pumped into the air floatation tank 1 through the sewage pump 4, air is pressed into the air filter 7 by the air compressor 6 to be filtered and then enters the hollow fiber membrane 8, the air is released through the hollow fiber membrane 8 to be combined with suspended matters in the sewage in the air floatation tank, floating slag is formed on the surface of the floating liquid, the floating slag is accumulated on the surface of the sewage, the slag discharging device is started, the floating slag on the surface is cleaned by the scraper blade 11 driven by the motor 12 and the chain wheel 9 and the chain 10, the floating slag is sent into the slag discharging groove 13, the slag is further removed by the slag scraper 14, and the valve on the water outlet 2 at.
The device used in the embodiment adopts the existing device, and the medicine in the medicine feeding tank is also used when the conventional air flotation machine is used for treating sewage.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims (4)

1. The utility model provides a novel air supporting machine, includes air supporting pond (1), sewage water intake system, air supporting system and arranges the sediment device, sewage water intake system, air supporting system respectively with air supporting pond (1) is connected, arrange the sediment device set up in the top in air supporting pond (1), the lower extreme in air supporting pond (1) still is equipped with outlet (2), be equipped with valve, its characterized in that on outlet (2):
the sewage water inlet system comprises a sewage tank (3), a sewage pump (4) and a chemical dosing tank (5), and sewage added with chemicals is pumped into the air floatation tank (1) through the sewage pump (4);
the air supporting system includes air compressor machine (6), air cleaner (7) and hollow fiber membrane (8), air compressor machine (6) with the entrance connection of air cleaner (7), the exit end of air cleaner (7) with hollow fiber membrane (8) are connected, hollow fiber membrane (8) set up in the bottom of air supporting pond (1), air compressor machine (6) are impressed air filter (7) and are filtered back and get into hollow fiber membrane (8), combine with the suspended solid in the sewage through hollow fiber membrane (8) release, and the superficial formation dross floats, discharges the dross through row sediment device.
2. The novel air flotation machine as claimed in claim 1, wherein: arrange the sediment device and include sprocket (9), chain (10) and scraper blade (11), two sprocket (9) symmetry set up in the top in air supporting pond (1) links to each other through chain (10) between two sprocket (9), the equipartition several has scraper blade (11) on chain (10), and one side of one of them sprocket (9) is connected with motor (12) through the chain, and the bottom of another sprocket (9) is equipped with slag discharging groove (13), vertical being equipped with one in slag discharging groove (13) scrapes sediment ware (14), wherein:
the slag scraper (14) consists of a fixed column (141), a slag scraping inclined plate (142) and a brush (143), wherein the fixed column (141) is vertically arranged in the slag discharge groove (13), the slag scraping inclined plate (142) is arranged at the top end of the fixed column (141), and the brush (143) is vertically arranged on one side of the top end of the slag scraping inclined plate (142);
the slag scraping inclined plate (142) is made of rubber, and an included angle between the slag scraping inclined plate (142) and the fixed column (141) is an obtuse angle.
3. The novel air flotation machine as claimed in claim 1, wherein: the hollow fiber membrane (8) is a PVDF hollow fiber membrane.
4. The novel air flotation machine as claimed in claim 3, wherein: the hollow fiber membrane (8) is 0.02-0.3 micron.
CN201920929515.8U 2019-06-19 2019-06-19 Novel air floatation machine Active CN210140508U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920929515.8U CN210140508U (en) 2019-06-19 2019-06-19 Novel air floatation machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920929515.8U CN210140508U (en) 2019-06-19 2019-06-19 Novel air floatation machine

Publications (1)

Publication Number Publication Date
CN210140508U true CN210140508U (en) 2020-03-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920929515.8U Active CN210140508U (en) 2019-06-19 2019-06-19 Novel air floatation machine

Country Status (1)

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CN (1) CN210140508U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111453879A (en) * 2020-04-08 2020-07-28 湖北中油科昊机械制造有限公司 Cutting waste liquid treatment integrated equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111453879A (en) * 2020-04-08 2020-07-28 湖北中油科昊机械制造有限公司 Cutting waste liquid treatment integrated equipment

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GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A new type of air flotation machine

Effective date of registration: 20200922

Granted publication date: 20200313

Pledgee: Bank of Nanjing Jiangbei District branch of Limited by Share Ltd.

Pledgor: Nanjing nine environmental protection technology Co.,Ltd.

Registration number: Y2020320000194

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20220908

Granted publication date: 20200313

Pledgee: Bank of Nanjing Jiangbei District branch of Limited by Share Ltd.

Pledgor: Nanjing nine environmental protection technology Co.,Ltd.

Registration number: Y2020320000194