CN210559554U - Sewage treatment device - Google Patents

Sewage treatment device Download PDF

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Publication number
CN210559554U
CN210559554U CN201921241287.1U CN201921241287U CN210559554U CN 210559554 U CN210559554 U CN 210559554U CN 201921241287 U CN201921241287 U CN 201921241287U CN 210559554 U CN210559554 U CN 210559554U
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annular
anode
upper cover
cathode
stirring paddle
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CN201921241287.1U
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沈超
孙重远
李振华
鲁冯
周何清
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Wuhan Fangyuan New Technology Development Co Ltd
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Wuhan Fangyuan New Technology Development Co Ltd
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Abstract

The utility model belongs to the technical field of electrochemical treatment and discloses a sewage treatment device, which comprises a motor, a stirring paddle, a kettle body and an annular upper cover which can be matched and covered on the kettle body; the motor is arranged on the annular upper cover, the motor is in transmission connection with one end of the stirring paddle, and the other end of the stirring paddle penetrates through the annular upper cover and extends into the kettle body; the lower end of the annular upper cover is provided with an annular anode and an annular cathode; the annular anode and the annular cathode are coaxially arranged on the annular upper cover, the annular anode is positioned on the outer side of the stirring paddle, and the annular cathode is positioned on the outer side of the annular anode; first through holes are uniformly arranged on the annular anode; the annular cathode comprises an integrally connected cylinder upper part and an inverted cone lower part, and second through holes are uniformly arranged on the cylinder upper part. The circular flowing of the sewage can be formed between the annular anode and the annular cathode, the direct contact chance of the sewage and the electrode can be greatly improved, and the electrolytic treatment effect is improved.

Description

Sewage treatment device
Technical Field
The utility model belongs to the technical field of the electrochemical treatment, concretely relates to sewage treatment device.
Background
With the rapid development of industry, the variety and quantity of waste water are rapidly increased, the pollution to water bodies is more and more extensive and serious, and the ecological environment of the earth and the health and safety of human beings are threatened. Especially, the components of pollutants in sewage are more and more complex, the properties are changeable, for example, sewage discharged by industrial processes such as coking, dyes, pharmacy, organic chemical synthesis, papermaking, steel, metal processing, automobiles and the like, late-stage percolate of a refuse landfill and the like have the characteristics of high toxicity, high concentration and difficult biodegradation, the treatment difficulty is very large, and the satisfactory effect or even complete failure of the treatment of the sewage by using the traditional water treatment technology is difficult to obtain.
Electrochemical treatment technology is an emerging treatment technology that has been developed for the need to treat such high concentrations of recalcitrant contaminants. The reaction principle of the electric flocculation is that metals such as aluminum, iron and the like are used as anodes, the anodes are corroded under the action of direct current to generate Al, Fe and other ions, and the Al, Fe and other ions are developed into various hydroxyl complexes, polynuclear hydroxyl complexes or hydroxides through a series of hydrolysis, polymerization and ferrous oxidation processes, so that colloidal impurities and suspended impurities in wastewater are coagulated, precipitated and separated.
There are a pair of parallel negative plate and anode plate in traditional electrolysis trough, and negative plate and anode plate keep certain interval, avoid taking place the short circuit accident between two polar plates, and electrolyte flows along the horizontal direction between negative plate and anode plate, consequently, only partly liquid has the chance and polar plate direct contact or closely is close to the polar plate in the electrolyte, gets rid of thoroughly to the poisonous and harmful composition in the waste water, and is relatively poor to the treatment effect of waste water.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a sewage treatment device.
The utility model discloses the technical scheme who adopts does:
a sewage treatment device comprises a motor, a stirring paddle, a kettle body and an annular upper cover which can be matched and covered on the kettle body;
the motor is arranged on the annular upper cover and is in transmission connection with one end of the stirring paddle, and the other end of the stirring paddle penetrates through the annular upper cover and extends into the kettle body;
the lower end of the annular upper cover is provided with an annular anode and an annular cathode;
the annular anode and the annular cathode are coaxially arranged on the annular upper cover, the annular anode is positioned on the outer side of the stirring paddle, and the annular cathode is positioned on the outer side of the annular anode;
first through holes are uniformly distributed on the annular anode;
the annular cathode comprises an integrally connected cylinder upper part and an inverted cone lower part, and second through holes are uniformly arranged on the cylinder upper part.
Further, the annular anode and the annular anode are both detachably arranged on the annular upper cover.
Further, the annular anode and the annular cathode are both in threaded connection with the annular upper cover.
Further, still include the pneumatic cylinder, the pneumatic cylinder is installed the top of annular upper cover, the piston rod of pneumatic cylinder with the top of annular upper cover is connected.
Further, the lower extreme of cauldron body is the back taper structure.
Further, the annular anode is an iron anode annular anode, and the annular cathode is a graphite annular cathode.
The utility model has the advantages that:
the motor is started, the stirring paddle is driven to rotate, so that sewage in the kettle body is stirred, the sewage continuously flows towards the annular anode under the stirring of the stirring paddle and sequentially flows out of the first through holes on the annular anode, the annular cathode comprises an integrally connected cylinder upper part and an inverted cone lower part, the second through holes are uniformly arranged on the cylinder upper part, the sewage flowing out of the first through holes can be subjected to secondary baffling through the annular cathode, and a part of the flowing sewage flows out of the second through holes of the annular cathode and falls downwards to the kettle body and can be brought into the inner side of the annular anode under the stirring of the stirring paddle, so that the sewage is circularly reciprocated (as shown by arrows in fig. 1); the other part of the gushed sewage flows downwards along the inner wall of the annular cathode, flows to the stirring paddle under the guidance of the lower part of the inverted cone, is carried to the inner side of the annular anode under the stirring of the stirring paddle, and is circularly reciprocated (shown by an arrow in figure 1); therefore, the sewage can be fully contacted with the annular anode and the annular cathode, and the sewage forms circular flow between the annular anode and the annular cathode, so that the direct contact chance of the sewage and the electrode can be greatly improved, and the electrolytic treatment effect is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the ring anode of the present invention.
Fig. 3 is a schematic structural view of the kettle body and the hydraulic cylinder of the present invention.
Fig. 4 is a schematic structural view of the kettle body and the vacuum pump of the present invention.
In the figure: 10-kettle body; 101-a discharge pipe; 11-an annular upper cover; 20-a motor; 30-stirring paddle; 41-ring anode; 411 — first via; 42-ring cathode; 51-a vacuum pump; 52-pipette; 61-a buoy; 62-trumpet-shaped suction tube; 70-liquid level line; 81-hydraulic cylinder; 82-piston rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the sewage treatment device of the embodiment comprises a motor 20, a stirring paddle 30, a kettle body 10 and an annular upper cover 11 which can be matched and covered on the kettle body; the motor 20 is arranged on the annular upper cover 11, the motor 20 is in transmission connection with one end of the stirring paddle 30, and the other end of the stirring paddle 30 penetrates through the annular upper cover and extends into the kettle body 10; the bottom end of the stirring paddle is close to the bottom end of the kettle body. The stirring paddle is driven to rotate by the motor, so that the sewage in the kettle body is stirred.
An annular anode 41 and an annular cathode 42 are arranged at the lower end of the annular upper cover; the annular anode 41 and the annular cathode 42 are coaxially arranged on the annular upper cover, the annular anode is positioned on the outer side of the stirring paddle, and the annular cathode is positioned on the outer side of the annular anode; the annular anode is an iron anode annular anode, and the annular cathode is a graphite annular cathode. The annular anode is electrically connected with the anode of the pulse direct current power supply, and the annular cathode is electrically connected with the cathode of the pulse direct current power supply, so that the sewage in the kettle body can be electrolyzed by an electrocoagulation-precipitation method. The pulse DC power supply is adopted, and the process of 'power supply-power off-power supply' can be continuously and repeatedly carried out, so that the iron anode ring anode is corroded to generate Fe2+Can flow along with sewage and thereby carry out flocculation reaction effectively and prevent to deposit the deposit and passivate at iron positive annular anode formation, because what apply is pulse signal, electrode reaction is intermittent, is favorable to the diffusion of active ion, effectively reduces concentration polarization, can save the electric energy by furthest, improves electric flocculation efficiency.
As shown in fig. 2, first through holes 411 are uniformly arranged on the ring-shaped anode 41; the annular cathode comprises an integrally connected cylinder upper part and an inverted cone lower part, and second through holes are uniformly arranged on the cylinder upper part. After the annular upper cover is closed to the lid, starter motor can drive the stirring rake and rotate to the internal sewage of stirring kettle, sewage can constantly gush to the annular anode under the stirring of stirring rake, gushes out the first through-hole on the annular anode in proper order. Because the annular cathode comprises the upper part of the cylinder and the lower part of the inverted cone which are integrally connected, the second through holes are uniformly arranged on the upper part of the cylinder, sewage flowing out of the first through holes can be subjected to secondary baffling through the annular cathode, and a part of the flowing sewage flows out of the second through holes of the annular cathode and falls to the lower part of the kettle body, and is brought to the inner side of the annular anode under the stirring of the stirring paddle, so that the circular reciprocating motion (shown by arrows in figure 1) is realized; the other part of the gushed sewage flows downwards along the inner wall of the annular cathode, flows to the stirring paddle under the guidance of the lower part of the inverted cone, is carried to the inner side of the annular anode under the stirring of the stirring paddle, and is circularly reciprocated (shown by an arrow in figure 1); therefore, the sewage can be fully contacted with the annular anode and the annular cathode, and the sewage forms circular flow between the annular anode and the annular cathode, so that the direct contact chance of the sewage and the electrode can be greatly improved, and the electrolytic treatment effect is improved.
The principle of the electrolytic treatment process of the sewage treatment device of the utility model is as follows:
the electrode generates electrolytic oxidation-reduction reaction under the action of current, and the iron anode ring anode loses electrons to generate Fe2+In which Fe2+Rapidly converted into Fe under the action of oxygen3+. OH in Water-Electron loss to produce O2Bubbles are formed to escape. H formed by dissociation of water molecules at the graphite annular cathode+To electron generation H2The bubbles escape. The destabilization refers to Fe generated by dissolving the iron anode ring anode3+Plasma with OH-Acting to form Fe (OH)3The colloid substance and the suspended particles in the wastewater generate charge interaction, so that the suspended particles are removed from a stable state to generate a coagulation reaction to form a precipitate, and then O generated by electrolysis is generated2And H2The micro bubbles are adsorbed and float to the water surface, so that the effect of solid-liquid separation is achieved. Electrolytic redox involves two parts, one is the direct interaction of the contaminants with the electrolytically generated Fe (OH)3The colloid substance is subjected to interactive destabilization precipitation, and OH & free radicals generated in the electrolytic process have strong oxidizability and can directly oxidize organic pollutants in the wastewater without selectivity to generate CO2And simpler organics. And ozone is introduced into the electric flocculation reactor to greatly strengthen the process, more OH & free radicals can be generated, and the oxidation and electric flocculation reaction capability can be better strengthened. The sewage treatment device of the utility model has the following reaction formula in the electrolytic treatment process:
iron anode ring anode: fe-2e → Fe2+；
Graphite ring cathode: 2H2O+2e→H2+2OH-；
In the sewage in the kettle body: 2Fe2++O2+2H+→2Fe3++H2O2，Fe2++H2O2→Fe3++HO·+OH-，Fe2++HO·→Fe3++OH-，Fe2++2OH-→Fe(OH)2，Fe3++3OH-→Fe(OH)3
In this embodiment, the annular anode and the annular anode are both detachably disposed on the annular upper cover, and preferably, both the annular anode and the annular cathode are screwed on the annular upper cover. The annular anode and the disassembly, cleaning and replacement of the annular anode are facilitated.
As shown in fig. 3, the sewage treatment device further comprises a hydraulic cylinder 81, the hydraulic cylinder is installed above the annular upper cover, and a piston rod 82 of the hydraulic cylinder is connected with the top end of the annular upper cover. After the annular anode, the annular cathode and the stirring paddle are installed, the hydraulic cylinder can be started to extend the piston rod, and the annular upper cover is driven to cover the upper end of the kettle body. After the electrolysis treatment process is finished, the hydraulic cylinder is started to return oil, the piston rod is retracted, the annular upper cover is driven to leave the kettle body and move upwards until the annular anode and the annular cathode are convenient to disassemble, and then the annular anode and the annular cathode are disassembled for cleaning or replacement.
Will the lower extreme of the cauldron body 10 is the back taper structure, and the flocculation form that the electrolytic reaction of being convenient for formed deposits the lower extreme at the cauldron body, and after the electrolytic treatment process was accomplished, the motor stall, and after the stirring rake stall, after a period of stewing, the supernatant was discharged through the drain pipe of cauldron body upper end, can open the valve on the discharging pipe 101 of cauldron body lower extreme, and the precipitate of lower extreme is discharged outside the cauldron through this valve, carries out centralized processing.
Example 2:
the present embodiment is different from embodiment 1 in that: the supernatant is discharged through a discharge hole. As shown in fig. 4, a discharge port is arranged at the upper end of the kettle body, a discharge cover capable of covering the discharge port is hinged on the discharge port, supernatant in the kettle body is sucked by a vacuum pump 51, one end of the vacuum pump is connected with a storage tank (or a tank body of a next process), the other end of the vacuum pump is connected with a buoy 61 through a liquid suction pipe 52, the buoy 61 can float on the liquid level (a liquid level line 70 is indicated by a dotted line in fig. 3), a horn-shaped suction pipe 62 is arranged at the lower end of the buoy, and one end of the horn-shaped suction pipe with a. After the electrolysis treatment process is finished, the motor stops rotating, the stirring paddle stops rotating, the kettle is kept still for a period of time, the discharging cover is opened, the floating barrel is conveyed into the kettle body from the discharging hole to enable the floating barrel to float on the liquid level, then the vacuum pump is started, and the supernatant can be pumped to the storage tank (or the tank body of the next procedure) through the trumpet-shaped suction pipe 62 and the liquid suction pipe 52 in sequence.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (6)

1. A sewage treatment device is characterized in that: comprises a motor, a stirring paddle, a kettle body and an annular upper cover which can be matched and covered on the kettle body;
the motor is arranged at the upper end of the annular upper cover and is in transmission connection with one end of the stirring paddle, and the other end of the stirring paddle penetrates through the annular upper cover and extends into the kettle body;
the lower end of the annular upper cover is provided with an annular anode and an annular cathode;
the annular anode and the annular cathode are coaxially arranged on the annular upper cover, the annular anode is positioned on the outer side of the stirring paddle, and the annular cathode is positioned on the outer side of the annular anode;
first through holes are uniformly distributed on the annular anode;
the annular cathode comprises an integrally connected cylinder upper part and an inverted cone lower part, and second through holes are uniformly arranged on the cylinder upper part.
2. The sewage treatment apparatus of claim 1, wherein: the annular anode and the annular anode are detachably arranged on the annular upper cover.
3. The sewage treatment apparatus according to claim 2, wherein: the annular anode and the annular cathode are both in threaded connection with the annular upper cover.
4. The sewage treatment apparatus of claim 3, wherein: the hydraulic cylinder is arranged above the annular upper cover, and a piston rod of the hydraulic cylinder is connected with the top end of the annular upper cover.
5. The sewage treatment apparatus according to any one of claims 1 to 4, wherein: the lower extreme of the cauldron body is the back taper structure.
6. The sewage treatment apparatus of claim 5, wherein: the annular anode is an iron anode annular anode, and the annular cathode is a graphite annular cathode.
CN201921241287.1U 2019-08-01 2019-08-01 Sewage treatment device Active CN210559554U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921241287.1U CN210559554U (en) 2019-08-01 2019-08-01 Sewage treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921241287.1U CN210559554U (en) 2019-08-01 2019-08-01 Sewage treatment device

Publications (1)

Publication Number Publication Date
CN210559554U true CN210559554U (en) 2020-05-19

Family

ID=70632966

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921241287.1U Active CN210559554U (en) 2019-08-01 2019-08-01 Sewage treatment device

Country Status (1)

Country Link
CN (1) CN210559554U (en)

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