CN109650494A - A kind of negative pressure electro-flotation sewage treatment device and technique - Google Patents
A kind of negative pressure electro-flotation sewage treatment device and technique Download PDFInfo
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- CN109650494A CN109650494A CN201910066405.8A CN201910066405A CN109650494A CN 109650494 A CN109650494 A CN 109650494A CN 201910066405 A CN201910066405 A CN 201910066405A CN 109650494 A CN109650494 A CN 109650494A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
- C02F2001/46138—Electrodes comprising a substrate and a coating
- C02F2001/46142—Catalytic coating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46152—Electrodes characterised by the shape or form
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The present invention relates to a kind of negative pressure electro-flotation sewage treatment device and techniques, the processing unit is body structure, the bottom of body structure is equipped with water inlet, the top of body structure is equipped with negative pressure trap, body structure equal part water inlet be equipped with extend along the vertical direction etc. scoreboards, in body structure etc. scoreboards two sides be respectively equipped with electrolytic cell, the bottom of electrolytic cell is equipped with water inlet, the circumferential side wall and body structure inner wall of electrolytic cell, etc. be reserved with circulatory pool between scoreboards, cathode plate and anode plate are equipped at intervals in electrolytic cell, it is located above electrolytic cell in body structure and is equipped with conducting element, the bottom of circulatory pool is connected with the side wall of electrolytic cell, water blocking member is equipped with positioned at the top of electrolytic cell in body structure；Negative pressure trap can accelerate flock to float to tiny structure is generated in body structure, improve the treatment effeciency to sewage, while can significantly reduce the moisture content in waste residue, reduce subsequent drying cost.
Description
Technical field
The present invention relates to the technical fields of water process, more particularly, to a kind of negative pressure electro-flotation sewage treatment device and work
Skill.
Background technique
Oil extraction-generated waste water is a kind of heterogeneous system generated along with waterflooding extraction, and composition includes suspended solid, oil, inorganic
Salt, bacterium also contain a certain amount of dissolved organic matter (remaining fungicide, clay stabilizer, anti-incrustation corrosion inhibitor etc.), because
This, when re-injection, will be effectively treated it.Oil extraction-generated waste water reinjection technology technology mainly have chemical flocculation-sedimentation, air-dissolving air-float,
The methods of microbiological treatment, the structures that wherein chemical flocculation-sedimentation needs are more, one-time investment is larger；Air-dissolving air-float is easy
Cause content of oxygen dissolved in water height, corrosion aggravation；Microbiological treatment requires water quality, water relatively stable, and sewage composition variation is held
Easily cause the fluctuation for the treatment of effect.
Electric floating technology is waste water under DC electric field effect, and water is electrolysed, and O is precipitated in anode2And Cl2, it is precipitated in cathode
H2, it is electrolysed the bubble diameter very little of generation, and density is also small, therefore bubble intercepts and captures the ability of contaminant particles than air-dissolving air-float, machine
Tool turbine air flotation wants high, and floating loading capability is also high, is one of the hot spot of sewage disposal technology research in recent years.
Currently, the Chinese patent that Authorization Notice No. is CN101723532B discloses a kind of coking wastewater recycling process generation
The processing system of concentrated water, including electric flocculation flotation tank, electrocoagulation electrode, electric floating electrode, electric flocculation air bearing Slag Scraping Device, have three
Electrocatalytic oxidation pond, electrocatalytic oxidation polarizing electrode and the electrocatalytic oxidation discharge bay of a reactive tank, but the processing system is by more
A large volume processing pond is constituted, and occupied area is larger, and water content is larger in the waste residue wiped off through electric flocculation air bearing Slag Scraping Device,
Also need it is subsequent be dried, higher cost.
Summary of the invention
The purpose of the present invention one is to provide a kind of negative pressure electro-flotation sewage treatment device, and occupied area is greatly saved, and
And the waste residue of recyclable smaller water content, save subsequent drying cost.
Foregoing invention purpose one of the invention has the technical scheme that
A kind of negative pressure electro-flotation sewage treatment device, is body structure, and the bottom of the body structure is equipped with water inlet, the case
The side wall of body structure is equipped with water outlet, and the top of the body structure is equipped with negative pressure trap, and the body structure is in equal part
Water inlet be equipped with extend along the vertical direction etc. scoreboards, in the body structure etc. scoreboards two sides be respectively equipped with electrolytic cell,
The bottom of the electrolytic cell is equipped with water inlet, the circumferential side wall and body structure inner wall of the electrolytic cell, etc. reserve between scoreboards
There is circulatory pool, cathode plate and anode plate are equipped at intervals in the electrolytic cell, is located above electrolytic cell in the body structure and is equipped with
The conducting element to circulatory pool, the bottom of the circulatory pool and the side wall phase of electrolytic cell will be guided from the outflow sewage in electrolytic cell
Even, it is equipped with positioned at the top of electrolytic cell for the water blocking in cyclic electrolysis area will to be divided into body structure in the body structure
Part.
By using above-mentioned technical proposal, will feed intake, be electrolysed, deslagging process merge in same body structure, sewage from
Water inlet flow into, etc. scoreboards compartmentation under, sewage flows into the electrolytic cell of two sides via water inlet, and sewage is filled in yin
Between pole plate and anode plate, cell reaction is carried out, micro-bubble is generated in electrolytic process and is adhered on wadding body, negative pressure trap pair
Tiny structure is generated in body structure, flock can be accelerated to float, and improves the treatment effeciency to sewage, while can significantly reduce waste residue
In moisture content, reduce subsequent drying cost.
The present invention is further arranged to: the body structure is equipped on the side wall between water inlet and water inlet and feeds intake
Mouthful.
By using above-mentioned technical proposal, adding coagulant, the processes of feeding intake such as PAC, PAM in feeding port can be before water inlet
Or added in water inlet, water inlet water flow has biggish percussion, generates stirring action to coagulant, can make coagulant
It is substantially dissolved in sewage, so that the fine suspension in sewage is collected as the floccule body with obvious sediment performance, then facilitate
It is separated using gravitational method；Sewage is flowed into from water inlet, is not flowed into before water inlet, is reserved with the sufficient time and coagulant is mixed
It is molten, be conducive to the adequacy of subsequent electrolysis.
The present invention is further arranged to: the body structure is equipped with drinking-water pipe close to the bottom wall of feeding port, described to draw water
Pipe is connected with the water intake end of external suction pump, and the water inlet is connected with the water outlet of suction pump.
By using above-mentioned technical proposal, external suction pump generates suction, via drinking-water pipe, by the sewage in body structure
It is sent into water inlet, i.e., in electrolytic cell, carries out subsequent cell reaction, what is be pumped into out of drinking-water pipe is to have dissolved coagulant
Sewage；By also can further improve the stirring action to sewage in external suction pump again circulating pump to electrolytic cell.
The present invention is further arranged to: the negative pressure trap includes the recycling bins being connected with the top of body structure, sets
The vacuum meter setting the exhaust pipe at the top of recycling bins and being arranged at the top of recycling bins.
By using above-mentioned technical proposal, due to being negative pressure state in recycling bins, the waste residue that cell reaction generates is pumped down to
In recycling bins, effective collecting action is played to waste residue；Meanwhile device Integral sealing is good, the smell distributed in sewage from
Exhaust pipe discharge, facilitates the centralized processing for carrying out exhaust gas.
The present invention is further arranged to: the conducting element includes trapezoidal flow guiding disc, connect with trapezoidal flow guiding disc top center
Shaft and drive shaft rotation motor, the motor is arranged on the outer wall of body structure, in the trapezoidal flow guiding disc
Portion is hollow, and the bottom of the trapezoidal flow guiding disc is equipped with directed fluid inlet, is evenly distributed in the circumferential side wall of the trapezoidal flow guiding disc
Grid outlet.
By using above-mentioned technical proposal, the trapezoidal water conservancy diversion disc spins of motor driven, the sewage after being electrolysed enters via water conservancy diversion
Mouth flows into trapezoidal flow guiding disc, then flows into circulatory pool via grid outlet, realizes the circulation of electrolytic cell and circulatory pool, has
Conducive to the abundant electrolysis for realizing sewage.
The present invention is further arranged to: the water blocking member include perpendicular to etc. scoreboards top setting horizontal baffle and
The venthole being evenly arranged on horizontal baffle, the longitudinal section of the venthole are back taper, are hinged in the middle part of the horizontal baffle
Open and close the micromotor of cover board and control opening and closing cover plate opening and closing.
By using above-mentioned technical proposal, since negative pressure trap is in running order, by venthole, sewage can be discharged
In foul odour；Meanwhile negative pressure state, be conducive to the floccule body generated in electrolytic process floating, open opening and closing cover board, it can be square
Just floccule body is quickly discharged；Opening and closing cover board is closed, is facilitated the purified water discharge after electrolysis.
The present invention is further arranged to, the cathode plate, anode plate bottom titanium plate using following steps handle:
(1) titanium plate pre-processes: mass concentration being used to carry out ultrasonic alkali cleaning oil removing, alkali to titanium plate for 20 ~ 25% sodium hydroxide solution
Washing temperature is 80 ~ 82 DEG C；
(2) titanium plate etches: using mass concentration to impregnate titanium plate for 20% ~ 25% oxalic acid solution, solution temperature is at least 80 DEG C, leaching
Time at least 2h is steeped, then cleans and is dried for standby using deionized water；
(3) prepared by slurry: be that 10:3 blends conductive nano ceramic powders and organic additive with weight ratio, carry out ball milling be blended 2 ~
3h, sieving；
(4) slurry is passed through in the titanium plate of silk-screen printing after etching；
(5) 20 ~ 25min is dried；
(6) it is sintered: a, rising to 400 ~ 500 DEG C from room temperature with 2 ~ 5 DEG C/min, keep the temperature 2h；B, it under protective atmosphere, is continuously heating to
800 ~ 1200 DEG C, keep the temperature 3 ~ 5h；Room temperature is naturally cooled under protective atmosphere.
By using above-mentioned technical proposal, the titanium plate of bottom is subjected to alkali cleaning, etching, slurry uses conductive nano ceramic powder
End and the preparation of organic additive ball milling mixing, then by slurry by being screen printed onto titanium plate, using drying, sinter into
The electrode specific surface area of type, preparation is larger, and the catalytic efficiency of catalyst coat can be improved.
Foregoing invention purpose two of the invention has the technical scheme that
A kind for the treatment of process of negative pressure electro-flotation sewage treatment device, includes the following steps:
(1) start negative pressure trap, to water inlet water flowing；
(2) start conducting element, sewage cyclic electrolysis in electrolytic cell, circulatory pool；
(3) purified water after being electrolysed is discharged via negative pressure trap.
By using above-mentioned technical proposal, it is in negative pressure state in body structure, to water inlet water flowing, starts conducting element, draw
It leads sewage and does shuttling movement in electrolytic cell, circulatory pool, realize sufficiently electrolysis, the flock generated in electrolytic process is in negative pressure
Effect is lower to float, and is conducive to the discharge of waste residue, and the waste residue water content after discharge is smaller, saves subsequent drying process
Process has the advantages that energy-saving consumption-reducing.
The present invention is further arranged to: the vacuum degree in the body structure is 10 ~ 30kpa.
By using above-mentioned technical proposal, set vacuum degree as 10 ~ 30kpa, it can be achieved that extract solid state floccule body,
The foul odour in sewage can also be taken away, there is excellent treatment effect.
In conclusion advantageous effects of the invention are as follows:
It is closed container 1. providing a kind of sewage-treatment plant, in the way of pumping negative pressure, the foul odour in sewage is arranged
Out, while wadding body caused by floating electrolytic process is helped speed up, to facilitate the discharge of waste residue in sewage；
2. water content is lower in the waste residue of discharge, subsequent drying process process and cost are saved；
3. electrolytic process circulating path is longer, be conducive to realize sewage sufficiently electrolysis；
4. entering before electrolytic cell, external suction pump is sufficiently miscible with coagulant by sewage, improves phase of the sewage with coagulant
Capacitive is conducive to subsequent cell reaction；
5. the bottom titanium plate of electrode does specially treated, it is possible to increase the specific surface area of catalyst coat helps to enhance catalytic activity.
Detailed description of the invention
Fig. 1 is the overall structure diagram after the hiding motor of the present invention.
Fig. 2 is the internal view of processing unit of the present invention.
Fig. 3 is the structural schematic diagram for embodying suction pump of the present invention, feeding port, drinking-water pipe.
Fig. 4 is the structural schematic diagram for embodying conducting element of the present invention.
Fig. 5 is the structural schematic diagram for embodying water blocking member of the invention.
In figure, 1, body structure；2, water inlet；3, water outlet；4, negative pressure trap；41, recycling bins；42, exhaust pipe；
43, vacuum meter；5, the scoreboards such as；6, electrolytic cell；7, water inlet；8, circulatory pool；9, cathode plate；10, anode plate；11, conducting element；
111, trapezoidal flow guiding disc；111a, directed fluid inlet；111b, grid outlet；112, shaft；113, motor；12, water blocking member；121, water
Flat baffle；122, venthole；123, cover board is opened and closed；13, feeding port；14, drinking-water pipe；15, suction pump；16, micromotor；17,
Vacuum pump.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment one:
Referring to Fig.1, it is a kind of negative pressure electro-flotation sewage treatment device disclosed by the invention, is body structure 1, sewage can be carried out
The processing of the multi-process such as electrolysis, deslagging, exhaust, occupied area is small, and the water content of arranged dross is lower, saves subsequent be dried to
This.
Referring to Fig.1, the top of body structure 1 is in back taper, and the top of body structure 1 is connected with negative pressure trap 4, negative pressure
Trap 4 includes recycling bins 41, the exhaust pipe 42 that 41 top of recycling bins is arranged in and the vacuum that 41 top of recycling bins is arranged in
Table 43 is connected with vacuum pump 17 on recycling bins 41, and vacuum pump 17 generates draft effect, can keep recycling bins 41, in body structure 1
With stable negative pressure, the foul odour in sewage is discharged；Meanwhile cell reaction, electrolytic process occurring in body structure 1
The micro-bubble of generation is adhered on wadding body, under the action of negative pressure, can be accelerated the ascent rate of wadding body, be increased the processing to sewage
Efficiency also helps moisture evaporation, to reduce the water content in dross.
Referring to Figures 1 and 2, the bottom of body structure 1 is equipped with water inlet 2, and the side wall of body structure 1 is equipped with water outlet 3,
Body structure 1 at equal part water inlet 2 be equipped with etc. scoreboards 5, etc. scoreboards 5 upwardly extend, by body structure 1 be divided to for left and right two skies
Between, electrolytic cell 6 is respectively equipped in body structure 1 in the two spaces of left and right, shape is cylindrical shape, the circumferential side wall of electrolytic cell 6
With 1 inner wall of body structure, etc. be reserved with circulatory pool 8 between scoreboards 5, the bottom of electrolytic cell 6 is equipped with water inlet 7, in electrolytic cell 6 between
Every being equipped with cathode plate 9 and anode plate 10, it is located above electrolytic cell 6 that be equipped with will be from the outflow sewage in electrolytic cell 6 in body structure 1
To the conducting element 11 in circulatory pool 8, the bottom of circulatory pool 8 is connected with the side wall of electrolytic cell 6 for guidance, and electricity is located in body structure 1
The top for solving pond 6 is equipped with for will be divided into the water blocking member 12 in cyclic electrolysis area in body structure 1, and water blocking member 12 is to body structure
It is separated inside 1, sewage enters from water inlet 2, and then flows into electrolytic cell 6 via water inlet 7, and conducting element 11 draws sewage
It is directed in circulatory pool 8, under the effect of gravity, sewage is flowed back into again in electrolytic cell 6, recycles above-mentioned steps, is realized to sewage
Sufficiently electrolysis.
Referring to Fig. 2 and Fig. 3, body structure 1 is equipped with feeding port 13 on the side wall between water inlet 2 and water inlet 7, passes through
Feeding port 13 is to dispensing PAC, PAM coagulant inside body structure 1, and the bottom of body structure 1 is in back taper, in body structure 1
It is equipped with drinking-water pipe 14 close to the bottom wall of feeding port 13, drinking-water pipe 14 is arranged far from water inlet 2, and drinking-water pipe 14 draws water with external
The water intake end of pump 15 is connected, and water inlet 7 is connected with the water outlet of suction pump 15, into the sewage and coagulant in body structure 1
It is miscible, the abundant miscible of sewage and coagulant in sewage pump to electrolytic cell 6, will be conducive to using suction pump 15, sewage is played
Good stirring action.
Referring to Fig. 4, conducting element 11 includes trapezoidal flow guiding disc 111, the shaft connecting with trapezoidal 111 top center of flow guiding disc
112 and drive shaft 112 rotate motor 113, motor 113 be arranged outside body structure 1, inside trapezoidal flow guiding disc 111
Hollow, the bottom of trapezoidal flow guiding disc 111 is equipped with directed fluid inlet 111a, uniformly has grid in the circumferential side wall of trapezoidal flow guiding disc 111
111b, 113 drive shaft of motor, 112 high speed rotation are exported, and then trapezoidal flow guiding disc 111 is driven to rotate, the sewage in electrolytic cell 6
It is flowed into trapezoidal flow guiding disc 111 via directed fluid inlet 111a, under the influence of centrifugal force, sewage flows into circulatory pool 8, in gravity
Under effect, sewage is flowed back into again in electrolytic cell 6 in circulatory pool 8, carries out sufficient cell reaction.
Referring to Fig. 4 and Fig. 5, water blocking member 12 include perpendicular to etc. the horizontal baffle 121 of top setting of scoreboards 5 and uniformly distributed
The longitudinal section of venthole 122 on horizontal baffle 121, venthole 122 is back taper, and the middle part of horizontal baffle 121 is hinged with
The micromotor 16 that cover board 123 and control opening and closing cover board 123 are opened is opened and closed, controls micromotor 16, and then control open-close cover
Plate 123 it is on and off；Opening and closing cover board 123 is opened, realizes discharge waste residue and exhaust gas, opening and closing cover board 123 is closed, after electrolysis
Purified water from water outlet 3(Fig. 1) be discharged.
Wherein, the bottom titanium plate of cathode plate and anode plate is handled using following steps:
(1) titanium plate pre-processes: mass concentration being used to carry out ultrasonic alkali cleaning oil removing, alkali cleaning to titanium plate for 20% sodium hydroxide solution
Temperature is 80 DEG C；
(2) titanium plate etches: using mass concentration to impregnate titanium plate for 20% oxalic acid solution, solution temperature is 80 DEG C, and soaking time is extremely
Few 2h, is then cleaned and is dried for standby using deionized water；
(3) prepared by slurry: being that 10:3 blends conductive nano ceramic powders and organic additive with weight ratio, organic additive is selected
Weight ratio is the dehydrated alcohol of 1:1:1: CMC: terpinol, carries out ball milling and 2 ~ 3h, sieving is blended；
(4) slurry is passed through in the titanium plate of silk-screen printing after etching；
(5) 20 ~ 25min is dried using HDR-II infrared heater；
(6) it is sintered: a, rising to 400 DEG C from room temperature with 2 ~ 5 DEG C/min, keep the temperature 2h；B, under ar gas environment, 800 are continuously heating to
DEG C, keep the temperature 3h；Room temperature is naturally cooled under protective atmosphere；
Wherein, the preparation method of conductive nano ceramic powders uses following steps:
(1) in parts by weight, 10 parts of polyborosiloxane, 20 parts of yttrium oxide, 30 parts of ruthenium-oxide, polyethylene glycol hydrogenated is weighed
1 part of castor oil；
(2) polyborosiloxane is placed in reaction kettle, Crodaret is slowly penetrated in polyborosiloxane,
1.5 ~ 2h is heated at a temperature of 300 DEG C；
(3) yttrium oxide, ruthenium-oxide high speed dispersion are obtained into mixture in polyborosiloxane, and under inert gas protection,
It is sintered in 2400 ~ 2900 DEG C of temperature；
(4) it crushes.
Embodiment two:
A kind for the treatment of process of negative pressure electro-flotation sewage treatment device, includes the following steps:
(1) start negative pressure trap, the vacuum degree adjusted in body structure is 10 ~ 30kpa, to water inlet water flowing；
(2) start conducting element, sewage cyclic electrolysis in electrolytic cell, circulating slot；
(3) purified water after being electrolysed is discharged via negative pressure trap.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of negative pressure electro-flotation sewage treatment device is body structure (1), the bottom of the body structure (1) is equipped with water inlet
The side wall of mouth (2), the body structure (1) is equipped with water outlet (3), it is characterised in that: sets at the top of the body structure (1)
Have negative pressure trap (4), the body structure (1) at equal part water inlet (2) be equipped with extend along the vertical direction etc. scoreboards
(5), in the body structure (1) etc. scoreboards (5) two sides be respectively equipped with electrolytic cell (6), the bottom of the electrolytic cell (6) is equipped with
Water inlet (7), the circumferential side wall and body structure (1) inner wall of the electrolytic cell (6), etc. be reserved with circulatory pool between scoreboards (5)
(8), it is equipped at intervals with cathode plate (9) and anode plate (10) in the electrolytic cell (6), is located at electrolytic cell in the body structure (1)
(6) top is equipped with and will guide from the outflow sewage in electrolytic cell (6) to the conducting element (11) in circulatory pool (8), the circulatory pool
(8) bottom is connected with the side wall of electrolytic cell (6), and the top in the body structure (1) positioned at electrolytic cell (6) is equipped with for will
The water blocking member (12) in cyclic electrolysis area is divided into body structure (1).
2. a kind of negative pressure electro-flotation sewage treatment device according to claim 1, it is characterised in that: the body structure
(1) feeding port (13) are equipped on the side wall between water inlet (2) and water inlet (7).
3. a kind of negative pressure electro-flotation sewage treatment device according to claim 2, it is characterised in that: the body structure
(1) bottom wall close to feeding port (13) is equipped with drinking-water pipe (14), and the drinking-water pipe (14) enters water with external suction pump (15)
End is connected, and the water inlet (7) is connected with the water outlet of suction pump (15).
4. a kind of negative pressure electro-flotation sewage treatment device according to claim 1, it is characterised in that: the negative pressure trap
(4) include the recycling bins (41) being connected with the top of body structure (1), be arranged exhaust pipe (42) at the top of recycling bins (41) with
And the vacuum meter (43) being arranged at the top of recycling bins (41).
5. a kind of negative pressure electro-flotation sewage treatment device according to claim 1, it is characterised in that: the conducting element (11)
Including trapezoidal flow guiding disc (111), the shaft (112) and drive shaft (112) that are connect with trapezoidal flow guiding disc (111) top center
The motor (113) of rotation, the motor (113) are arranged on the outer wall of body structure (1), in the trapezoidal flow guiding disc (111)
Portion is hollow, and the bottom of the trapezoidal flow guiding disc (111) is equipped with directed fluid inlet (111a), the circumferential direction of the trapezoidal flow guiding disc (111)
Grid outlet (111b) is evenly distributed on side wall.
6. a kind of negative pressure electro-flotation sewage treatment device according to claim 1, it is characterised in that: the water blocking member (12)
Including perpendicular to etc. scoreboards (5) top setting horizontal baffle (121) and the venthole that is evenly arranged on horizontal baffle (121)
(122), the longitudinal section of the venthole (122) is back taper, is hinged with opening and closing cover board in the middle part of the horizontal baffle (121)
(123) and control opens and closes the micromotor (16) that cover board (123) open and close.
7. a kind of negative pressure electro-flotation sewage treatment device according to claim 1, which is characterized in that the cathode plate (9),
The bottom titanium plate of anode plate (10) is handled using following steps:
(1) titanium plate pre-processes: mass concentration being used to carry out ultrasonic alkali cleaning oil removing, alkali to titanium plate for 20 ~ 25% sodium hydroxide solution
Washing temperature is 80 ~ 82 DEG C；
(2) titanium plate etches: using mass concentration to impregnate titanium plate for 20% ~ 25% oxalic acid solution, solution temperature is at least 80 DEG C, leaching
Time at least 2h is steeped, then cleans and is dried for standby using deionized water；
(3) prepared by slurry: be that 10:3 blends conductive nano ceramic powders and organic additive with weight ratio, carry out ball milling be blended 2 ~
3h, sieving；
(4) slurry is passed through in the titanium plate of silk-screen printing after etching；
(5) 20 ~ 25min is dried；
(6) it is sintered: a, rising to 400 ~ 500 DEG C from room temperature with 2 ~ 5 DEG C/min, keep the temperature 2h；B, it under protective atmosphere, is continuously heating to
800 ~ 1200 DEG C, keep the temperature 3 ~ 5h；Room temperature is naturally cooled under protective atmosphere.
8. a kind for the treatment of process of negative pressure electro-flotation sewage treatment device described in application claim 1 ~ 7 any one, special
Sign is, includes the following steps:
(1) start negative pressure trap, to water inlet water flowing；
(2) start conducting element, sewage cyclic electrolysis in electrolytic cell, circulatory pool；
(3) purified water after being electrolysed is discharged via negative pressure trap.
9. a kind of negative pressure electric floating sewage treatment process according to claim 8, it is characterised in that: in the body structure
Vacuum degree be 10 ~ 30kpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066405.8A CN109650494A (en) | 2019-01-24 | 2019-01-24 | A kind of negative pressure electro-flotation sewage treatment device and technique |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113754029A (en) * | 2021-09-25 | 2021-12-07 | 盐城工学院 | Electrolytic air flotation tank combined drying foam layer circulating post-treatment device |
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