CN116639760A - System and method for treating oil-containing wastewater of transformer substation accident oil pool - Google Patents
System and method for treating oil-containing wastewater of transformer substation accident oil pool Download PDFInfo
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- CN116639760A CN116639760A CN202310416851.3A CN202310416851A CN116639760A CN 116639760 A CN116639760 A CN 116639760A CN 202310416851 A CN202310416851 A CN 202310416851A CN 116639760 A CN116639760 A CN 116639760A
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- 239000002351 wastewater Substances 0.000 title claims description 86
- 238000000034 method Methods 0.000 title claims description 10
- 239000010802 sludge Substances 0.000 claims abstract description 36
- 239000010865 sewage Substances 0.000 claims abstract description 23
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 18
- 238000005189 flocculation Methods 0.000 claims description 66
- 230000016615 flocculation Effects 0.000 claims description 66
- 239000003814 drug Substances 0.000 claims description 57
- 238000003825 pressing Methods 0.000 claims description 54
- 238000000926 separation method Methods 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 25
- 239000002699 waste material Substances 0.000 claims description 24
- 238000005086 pumping Methods 0.000 claims description 22
- 239000008394 flocculating agent Substances 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000003311 flocculating effect Effects 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004904 shortening Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 99
- 230000009471 action Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 7
- 238000010030 laminating Methods 0.000 description 4
- 239000011499 joint compound Substances 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000011085 pressure filtration Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5209—Regulation methods for flocculation or precipitation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The application relates to a transformer substation accident oil tank oily wastewater treatment system and a transformer substation accident oil tank oily wastewater treatment method, and relates to the technical field of sewage treatment. The application has the effects of simplifying the treatment operation of the oily sludge in the accident oil pool, improving the treatment efficiency of the oily sludge and shortening the treatment period.
Description
Technical Field
The application relates to the technical field of sewage treatment, in particular to a system and a method for treating oil-containing wastewater of an accident oil pool of a transformer substation.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in the electric power system. When the transformer is in daily operation and maintenance and has accident faults, the transformer oil of the main transformer and the reactor can be collected through the pit slots at the bottom and flow into the accident oil pool through the pipeline. When raining, rainwater also can collect through the bottom pit groove and flow into accident oil pool, and the oily waste water in accident oil pool easily passes through the pipe network and gets into peripheral water environment, consequently needs technical staff to handle oily waste water and waste mud to reduce environmental pollution.
At present, when technicians process an accident oil pool, the technicians are required to dig out sludge in the oil pool in the accident oil pool, the oily sludge is laid in a pretreatment area and then subjected to dewatering pretreatment, and then the oily sludge is cleaned through a micro emulsion cleaning agent, so that oil, water and sludge in the oily sludge are separated until the emission standard is reached. The cleaning steps of the oily sludge are complicated in the process, and the treatment needs to occupy a large field for pretreatment and tiling, so that the operation is troublesome, the treatment period is long, and the improvement is needed.
Disclosure of Invention
In order to simplify the treatment operation of oily sludge in an accident oil pool, improve the treatment efficiency of the oily sludge and shorten the treatment period, the application provides a system and a method for treating oily wastewater in the accident oil pool of a transformer substation.
On the one hand, the application provides a transformer substation accident oil pool oily wastewater treatment system, which adopts the following technical scheme:
the oil-containing wastewater treatment system comprises a treatment mechanism arranged on one side of an oil tank and a sewage pumping mechanism used for pumping oil-containing sludge of the oil tank, wherein the treatment mechanism comprises a treatment tank arranged on one side of the oil tank, a filter assembly arranged in the treatment tank and used for filtering the oil-containing sludge and a separation assembly used for separating oil from water, a filter cavity and a separation cavity are arranged in the treatment tank, a baffle plate used for enclosing the filter cavity is arranged in the treatment tank, the filter assembly is arranged in the filter cavity, and the separation assembly is arranged in the separation cavity;
the filter assembly comprises a filter pressing plate arranged in the filter cavity, a filter pressing net arranged on the partition plate and a power piece for lifting the filter pressing plate, wherein the filter pressing plate is movably attached to the bottom side of the partition plate, a filter hole is formed in the periphery side of the partition plate, and the filter hole is used for communicating the separation cavity with the filter cavity.
By adopting the technical scheme, when oil-containing wastewater/oil-containing sludge in the oil tank is required to be treated, technicians firstly add water into the oil tank, and then pump mixed liquid of oil, water and sludge in the oil tank into the treatment tank through the sewage pumping mechanism. Firstly, mixed liquid enters a separation cavity, then a power piece is arranged to carry out filter pressing operation on the mixed liquid, solid waste in the mixed liquid is remained on a partition plate in a filter cavity, and then liquid waste such as water, oil and the like enters the separation cavity through a filter hole and a filter pressing net. The water and the oil are separated in layers by the separating component, and then the water and the oil are discharged to reach the dischargeable standard; the oily wastewater and the oily sludge in the oil tank can be treated by one treatment mechanism, so that the occupation of the field is reduced, the treatment difficulty of the accident oil tank is reduced, and the treatment efficiency of the accident oil tank is improved; meanwhile, the oily wastewater after filter pressing is treated, so that the dosage of chemical agents for directly using the mixture of water, oil and mud under the general condition is reduced, and the resource is saved.
Optionally, the filter-pressing net rotate set up in on the baffle, the filter-pressing net with rotate the piece and be connected, just the filter-pressing net with the periphery laminating of baffle.
Through adopting above-mentioned technical scheme, the power spare of setting is when going up and down the filter-pressing board, rotates the drive to the filter-pressing net, because the filter-pressing net laminates mutually with the periphery wall of baffle, when the filter-pressing net rotates, the baffle strikes off the mud that exists on the filter-pressing net to the problem of filter-pressing hole is blockked up to the mud of stereoplasm or caking when reducing the filter-pressing, promotes filter-pressing efficiency, thereby promotes the treatment effeciency to oily waste water.
Optionally, the power piece includes rotate set up in the rotation lead screw in the treatment jar, the filter-pressing board screw thread set up in on the rotation lead screw.
By adopting the technical scheme, the rotating screw rod rotates to drive the filter pressing plate to lift so as to carry out filter pressing operation on the oily sludge and the wastewater, so that the oily wastewater flows out from the filter pressing holes and the filter pressing net, the sludge is reserved in the filter cavity, and the sludge and the oily wastewater are separated, so that the operation is simple; meanwhile, the screw rod is rotated to drive the pressure filter screen to synchronously rotate, so that the blocking of the sludge to the pressure filter screen is reduced, the pressure filtration efficiency is improved, the pressure filtration operation and the rotation operation of the pressure filtration net can be realized by one power source, and the power source is saved.
Optionally, the separation subassembly including rotate set up in the dwang in the separation intracavity and locate fall the medicine pole on the dwang, fall the medicine pole cavity setting and fall the intracavity of medicine pole and be equipped with the flocculating agent, it has seted up the flocculation hole on the medicine pole to fall.
By adopting the technical scheme, after the oily wastewater enters the separation cavity, the flocculant in the medicine dropping rod is added into the oily wastewater through the flocculation hole, so that the waste oil is flocculated, the subsequent separation of oil and water is facilitated, and the operation is simple; simultaneously, the rotating rod and the medicine dropping rod are arranged to stir the oily wastewater when rotating, so that the flocculant and the oily wastewater are fully mixed, and the flocculation efficiency is improved.
Optionally, the medicine pole that falls still is equipped with the shutoff subassembly that carries out movable shutoff to the flocculation hole on the medicine pole that falls, fall the medicine pole along being close to the direction of filter chamber is to keeping away from the direction slope of filter chamber is laid, just fall to set up multiunit flocculation hole on the medicine pole, multiunit flocculation hole is followed fall the direction of extension interval of medicine pole is laid, the shutoff subassembly also is equipped with multiunit, and multiunit shutoff subassembly and multiunit flocculation hole one-to-one.
Through adopting above-mentioned technical scheme, the medicine pole that falls that the slope set up is stirring the oily waste water of co-altitude of difference, and the homoenergetic carries out the stirring operation of adding of flocculating agent, carries out movable shutoff to the flocculation hole through the shutoff subassembly that sets up, and adds the flocculating agent of different amounts according to the volume of oily waste water of co-altitude of difference, and the simplification technicians is to the operation of adding of flocculating agent, further promotes the flocculation efficiency to oily waste water of different amounts.
Optionally, the shutoff subassembly including rotate set up in the shutoff board of flocculation hole department on the medicine pole falls, the shutoff board with the periphery side activity laminating of medicine pole falls, the shutoff board is laminated with the liquid activity in the separation chamber.
Through adopting above-mentioned technical scheme, rotate the shutoff board that sets up when dwang and medicine pole rotate, the shutoff board laminates mutually with oily waste water, and the shutoff board rotates under the resistance of liquid to open the flocculation hole, the flocculant flows out and mixes with oily waste water in the flocculation hole under the action of gravity this moment, thereby carries out flocculation treatment.
Optionally, the plugging plate is further provided with an elastic element, one end of the elastic element is connected with the drug dropping rod, the other end of the elastic element is connected with the plugging plate, and the separation cavity is further provided with a positioning component for keeping the relative position between the plugging plate and the drug dropping rod constant.
Through adopting above-mentioned technical scheme, rotatory at dwang and medicine pole that falls, and when the height of oily waste water did not reach the height of shutoff board, the shutoff board keeps the shutoff to the flocculation hole under the effect of elastic component this moment to reduce the waste of flocculating agent, and set up the stability that the shutoff board was to the flocculation hole shutoff further promoted to locating component.
Optionally, the locating component includes the lift setting in the butt pole of separation intracavity to and set up in the butt piece on the medicine pole that falls, the butt piece with the lateral wall activity laminating of shutoff board, the density of butt pole is less than oil, water density, just the butt pole be close to the end side of shutoff board with the movable laminating of shutoff board.
By adopting the technical scheme, when the height of the oily wastewater is lower than that of the abutting rod, the plugging plate is not easy to rotate under the action of the abutting block, so that the flocculation hole is kept plugged, and the outflow waste of the flocculant is reduced; when the liquid level of the oily wastewater is higher than the abutting plate, the density of the abutting plate is lower, so that the abutting plate moves upwards under the action of buoyancy until the abutting rod abuts against the plugging plate, at the moment, the plugging plate rotates to be separated from the abutting block, and the plugging plate is enabled to open and close the flocculation hole subsequently, and the subsequent flocculation operation is completed.
Optionally, a flocculation frame is arranged on the water facing side of the plugging plate, and a flocculation hole is densely formed in the flocculation frame.
Through adopting above-mentioned technical scheme, after oily waste water is flocculated, the flocculation frame scrapes oily waste water, and the filtration that sets up congeals the hole and filters oily waste water to realize collecting the filtration to the waste oil after the flocculation, thereby realize collecting the discarded object of flocculation, separate oil, water, make the water that follow-up discharge reach emission standard.
On the other hand, the application provides a transformer substation accident oil pool oily wastewater treatment system, which comprises the following steps:
s1, mixing, namely stirring and mixing in an accident oil pool to obtain oil, water and mud mixed liquid;
s2, pumping the mixed liquid obtained in the step S1 into a treatment tank (21) by a sewage pumping mechanism (1), and performing filter pressing through a filter assembly (25), wherein sludge and oily wastewater are separated by the filter pressing;
s3, enabling the oily wastewater obtained in the step S2 to enter a separation cavity (24), adding a flocculating agent into the oily wastewater while stirring the oily wastewater by a medicine dropping rod (262), controlling the adding amount of the flocculating agent according to the different amounts of the oily wastewater, flocculating oil in the oily wastewater, separating oil from water, scraping and collecting waste oil by a flocculation frame (44), and independently collecting the waste oil and the waste water;
s4, collecting and storing the wastewater obtained after oil-water separation until all the oily sludge is treated, and discharging the treated wastewater into an accident oil pool for storage and next use.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the sewage pumping mechanism, the filtering component and the separating component are arranged, and oily sludge and oily wastewater are treated by one device, so that the efficiency of cleaning an accident oil pool is improved, the treatment period is shortened, and the operation steps of technicians are simplified;
2. the oil-containing waste is pre-pressed and filtered through a lifting filter press plate, a rotating filter press net and a power piece for driving the filter press net and the filter press plate simultaneously, so that the use of subsequent chemicals is reduced, and meanwhile, the power source is saved;
3. through the setting fall the medicine pole and rotate the shutoff board that sets up the movable shutoff is carried out the flocculation hole on falling the medicine pole, be convenient for according to actual oily waste water's volume, the number that the control flocculation hole was opened and close to according to the volume adjustment flocculating agent of actual oily waste water treatment added, promote oily waste water treatment's efficiency and reduce the waste of flocculating agent simultaneously.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an oil-containing wastewater treatment system of an accident oil pool of a transformer substation in an embodiment of the application;
FIG. 2 is a schematic view of the connection structure of the filter assembly of the present application;
FIG. 3 is a schematic view of the connection structure of the separation assembly of the present application;
fig. 4 is a schematic diagram of a connection structure of a plugging plate and a drug dropping rod in the application.
Reference numerals: 1. a dirt sucking mechanism; 11. a sewage pumping pipe; 12. a sewage pumping head; 13. a feed inlet; 2. a processing mechanism; 21. a treatment tank; 22. a partition plate; 23. a filter chamber; 24. a separation chamber; 25. a filter assembly; 251. a filter pressing plate; 252. pressing a filter screen; 253. filtering holes; 254. a power member; 2541. rotating the screw rod; 26. a separation assembly; 261. a rotating lever; 262. a medicine dropping rod; 2621. flocculation holes; 3. a plugging assembly; 31. a plugging plate; 32. an elastic member; 4. a positioning assembly; 41. a butt joint rod; 42. a fixed rod; 43. an abutment block; 44. a flocculation frame; 45. filtering and condensing holes; 5. and a discharging pipe.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a system and a method for treating oil-containing wastewater of an accident oil pool of a transformer substation. Referring to fig. 1, a system and a method for treating oily wastewater of an accident oil sump of a transformer substation comprise a treatment mechanism 2 arranged at one side of the oil sump and a sewage pumping mechanism 1 for pumping oily sludge of the oil sump, wherein the sewage pumping mechanism 1 comprises a sewage pumping pipe 11 and a sewage pumping head 12 communicated with the sewage pumping pipe 11, and the sewage pumping head 12 is movably extended into the oil sump to be arranged; the treatment mechanism 2 comprises a treatment tank 21 fixed on one side of the oil tank, a filter assembly 25 arranged in the treatment tank 21 and used for filtering oil-containing sludge, and a separation assembly 26 used for separating oil from water, wherein the treatment tank 21 is vertically fixed, a sewage suction pipe 11 penetrates through the top of the treatment tank 21 and is communicated with the filter cavity 23, the treatment tank 21 is internally provided with the filter cavity 23 and the separation cavity 24, the treatment tank 21 is fixedly connected with a baffle 22 used for enclosing the filter cavity 23, the baffle 22 is in cylindrical arrangement, the filter assembly 25 is arranged in the filter cavity 23, and the separation assembly 26 is arranged in the separation cavity 24;
when the oil-containing sludge in the accident oil pool needs to be treated, a technician firstly inputs treatment water into the accident oil pool to enable the sludge, the oil and the water to form mixed liquid, and then stretches the sewage pumping head 12 into the accident oil pool to pump the mixed liquid into the treatment tank 21 for filtering and separating operation, so that the discharged water reaching the discharge standard is finally obtained.
Referring to fig. 1 and 2, the filter assembly 25 includes a filter pressing plate 251 vertically disposed in the filter chamber 23, a filter pressing net 252 disposed on the partition plate 22, and a power member 254 for driving the filter pressing plate 251 to move up and down, wherein the sliding direction of the filter pressing plate 251 is movably attached to the bottom side of the partition plate 22 and the filter pressing plate 251, a filter hole 253 is formed on the peripheral side of the partition plate 22, and the filter hole 253 communicates the separation chamber 24 with the filter chamber 23; the power piece 254 is a rotary screw rod 2541, the rotary screw rod 2541 is coaxially arranged in the treatment tank 21 in a rotary mode, the rotary axis of the rotary screw rod 2541 is vertical, a driving motor is fixedly arranged on the top side of the treatment tank 21, the output end of the driving motor is fixedly connected with the rotary screw rod 2541, a bidirectional thread is formed on the rotary screw rod 2541, a filter pressing plate 251 is in threaded fit with the rotary screw rod 2541, a feed inlet 13 is formed on the filter pressing plate 251, one end of a sewage suction pipe 11 penetrating through the top side of the treatment tank 21 is fixedly connected with the side wall of the feed inlet 13 on the filter pressing plate 251, and the sewage suction pipe 11 is a hydraulic pipe in the application, so that the hydraulic pipe has certain performance changing capability and bending capability;
when the separation of mud and oily wastewater is carried out, the mixed solution enters the filter cavity 23, the driving motor drives the rotary screw rod 2541 to rotate, and the filter pressing plate 251 is driven to lift to carry out filter pressing operation on the mixed solution, so that oily sludge in the mixed solution is filtered, the oily sludge is reserved in the filter cavity 23, and the oily wastewater enters the separation cavity 24 through the filter holes 253 and the filter pressing net 252.
Referring to fig. 2, the filter screen 252 is in the same shape as the partition 22, the filter screen 252 is attached to the peripheral wall of the partition 22, the filter screen 252 is rotatably disposed in the inner tank, the rotation axis of the filter screen 252 is in the same shape as the rotation axis of the rotation screw 2541, and the filter screen 252 is fixed on the rotation screw 2541; when the mixed liquid is treated, the filter pressing net 252 synchronously rotates along with the lifting of the filter pressing plate 251, so that the problem that the filter pressing holes 253 are blocked by agglomerated impurities is solved, and the filter pressing efficiency is improved.
Referring to fig. 3 and 4, the separation assembly 26 includes a rotating rod 261 rotatably disposed in the separation chamber 24 and a medicine dropping rod 262 fixed on the rotating rod 261, a rotating screw rod 2541 penetrates through the partition 22 and is fixedly connected with the top end of the rotating rod 261, the medicine dropping rod 262 is obliquely disposed along a direction close to the filter chamber 23 and is far away from the filter chamber 23, the medicine dropping rod 262 is hollow, a plurality of flocculation holes 2621 are formed in the medicine dropping rod 262, the flocculation holes 2621 are disposed at intervals along the length direction of the medicine dropping rod 262, and a plugging assembly 3 for movably plugging the flocculation holes 2621 is further disposed on the medicine dropping rod 262.
After the oily wastewater enters the separation cavity 24, flocculant in the medicine dropping rod 262 is added into the oily wastewater through flocculation holes 2621, so that the waste oil is flocculated, the subsequent separation of oil and water is facilitated, and the operation is simple; simultaneously, the rotating rod 261 and the medicine dropping rod 262 are arranged to stir the oily wastewater during rotation, so that the flocculant and the oily wastewater are fully mixed, and the flocculation efficiency is improved.
Because the amounts of the oily sludge to be treated in the accident oil pool are different in different conditions, the obtained amount of the oily wastewater is also inconsistent, the addition amount of the flocculating agent is required to be calculated manually, the calculation is complicated, the waste of the flocculating agent and insufficient oil and water separation easily occur, therefore, in order to solve the problem, referring to fig. 3, the plugging assembly 3 comprises a plugging plate 31 rotationally arranged on a medicine dropping rod 262, the plugging plate 31 movably plugs flocculation holes 2621, the extending directions of the medicine dropping rod 262 of the rotation axis of the plugging plate 31 are consistent, and an elastic piece 32 is arranged at the rotation axis of the plugging plate 31, the elastic piece 32 in the application is a torsion spring, and the bottom side of the plugging plate 31 movably stretches into the oily wastewater;
when the rotating rod 261 and the medicine dropping rod 262 rotate, the sealing plate 31 is attached to the oily wastewater, and the sealing plate 31 rotates under the resistance of liquid, so that the flocculation hole 2621 is opened, and at the moment, the flocculant flows out of the flocculation hole 2621 under the action of gravity and is mixed with the oily wastewater, so that flocculation treatment is performed; when the liquid level is lower than the height of the plugging plate 31, the plugging plate 31 keeps plugging the flocculation holes 2621 under the action of the torsion spring at the moment, so that the leakage of the flocculant is reduced, the waste of resources is reduced, and the flocculation holes 2621 are adaptively opened and closed according to the oily wastewater (i.e. the oily wastewater with different amounts) with different liquid levels, so that the amount of the flocculant is conveniently adjusted for adding the amounts of the oily wastewater with different amounts, and the flocculation efficiency is improved under the condition of reducing the flocculant waste.
Meanwhile, in order to further improve the accuracy of opening and closing the flocculation holes 2621 when the oily wastewater with different liquid levels is treated; the sealing plate 31 and the rotating shaft of the medicine dropping rod 262 are universal rotating shafts, the separating cavity 24 is internally provided with a positioning component 4, the positioning component 4 corresponds to the sealing component 3 one by one, the positioning component 4 comprises an abutting block 43 fixed on the medicine dropping rod 262 and an abutting rod 41 arranged at the bottom of the separating cavity 24 in a lifting mode, the abutting block 43 is distributed in an L shape, the abutting block 43 is movably attached to one side of the sealing plate 31 away from the medicine dropping rod 262, which is positioned at the bottom side of the sealing plate 31 and is movably attached to the bottom side of the sealing plate 31, the abutting rod 41 is one or more of polyester resin rods, epoxy resin rods, polypropylene rods and the like, the density of which is less than that of oil and water, a supporting disc is arranged on the inner bottom wall of the separating cavity 24, the supporting disc is fixedly connected with a rotating rod 261, a fixing rod 42 is vertically and fixedly connected to the supporting disc, and the abutting rod 41 is sleeved on the fixing rod 42;
because the supporting disc and the medicine dropping rod 262 are fixed with the rotating rod 261, the relative positions of the supporting disc and the medicine dropping rod 262 are kept constant and are not easy to deviate, so that the supporting rod 41 is stably positioned under the plugging plate 31, and when the height of oily wastewater is lower than that of the supporting rod 41, the plugging plate 31 is not easy to rotate under the action of the abutting block 43, so that the flocculation hole 2621 is kept plugged, and the outflow waste of flocculant is reduced; when the liquid level of the oily wastewater is higher than that of the abutting plate, the density of the abutting plate is lower, so that the abutting plate moves upwards under the action of buoyancy until the abutting rod 41 abuts against the plugging plate 31, at the moment, the plugging plate 31 rotates to be separated from the abutting block 43, and flocculation holes 2621 are opened, so that the blanking of a flocculating agent is realized, and the subsequent flocculation operation is performed.
In order to further separate water and oil, a discharging hole is formed in the bottom side of the treatment tank 21, a discharging pipe 5 is communicated with the discharging hole, the discharging pipe 5 stretches into the treatment tank, an electromagnetic valve is arranged on the discharging pipe 5, a flocculation frame 44 is further arranged on the medicine dropping rod 262, a plurality of groups of flocculation frames 44 are arranged, the groups of flocculation frames 44 are in one-to-one correspondence with a plurality of flocculation holes 2621, and filtering and condensing holes 45 are densely distributed on the side wall of the flocculation frame 44; meanwhile, a visible hole is formed in the bottom side of the treatment tank, a transparent visible plate is fixedly embedded in the visible hole, and a waste oil port (not shown in the figure) is formed in the treatment tank.
When the oily wastewater flocculates, the rotating rod 261 drives the medicine dropping rod 262 and the flocculation frame 44 to rotate, the flocculation frame 44 collects flocculated floccules, at the moment, the discharge hole is opened, the wastewater discharged from the discharge hole and separated from oil is observed through the visible plate, the wastewater reaches the dischargeable standard, and the wastewater after water-oil separation is discharged into the intermediate transition pool for collection; after the waste oil and flocculate are observed at the visible plate, a technician closes the discharge hole, opens the waste oil port, and collects the waste oil; after all the oily waste mud is treated, the waste water in the intermediate transition tank is discharged into an accident oil tank for recycling.
The embodiment of the application relates to a transformer substation accident oil pool oily wastewater treatment system, which comprises the following implementation principles: when a technician treats oil-containing sludge and oil-containing wastewater in an accident oil pool, the technician firstly adds water into the accident oil pool until oil, water and sludge mixed liquid is obtained; then the driving motor works to drive the rotating screw rod 2541 to rotate, so that the filter press plate 251 is lifted to press and filter the mixed liquid, the oily sludge is reserved in the filter cavity 23, and the oily wastewater enters the separation cavity 24 to carry out the following water-oil separation process; after the oily wastewater enters the separation cavity 24, when the height of the oily wastewater is lower than that of the abutting rod 41, the plugging plate 31 is not easy to rotate under the action of the abutting block 43, so that the flocculation holes 2621 are kept plugged, and the outflow waste of flocculant is reduced; when the liquid level of the oily wastewater is higher than that of the abutting plate, the density of the abutting plate is lower, so that the abutting plate moves upwards under the action of buoyancy until the abutting rod 41 abuts against the plugging plate 31, at the moment, the plugging plate 31 rotates to be separated from the abutting block 43, and the plugging plate 31 performs subsequent opening and closing on the flocculation hole 2621, so that the subsequent flocculation operation is completed.
The application also provides a method for treating the oil-containing wastewater of the transformer substation accident oil pool, which comprises the following steps: s1, mixing, namely adding water into an accident oil pool, and stirring and mixing technicians in the accident oil pool through an electric stirring rod to obtain oil, water and mud mixed liquid;
s2, a technician stretches the sewage pumping head 12 into an oil pool and starts equipment, a sewage pumping pump works, the mixed liquid obtained in the S1 is pumped into a filter cavity 23 in a treatment tank 21 through the sewage pumping head 12 and a sewage pumping pipe 11, filter pressing is carried out through a filter assembly 25, and sludge and oily wastewater are separated through filter pressing;
s3, enabling the oily wastewater obtained in the step S2 to enter a separation cavity 24, adding a flocculating agent into the oily wastewater while stirring the oily wastewater by a medicine dropping rod 262, controlling the adding amount of the flocculating agent according to the different amounts of the oily wastewater, flocculating oil in the oily wastewater, separating oil from water, and scraping and collecting the waste oil by a flocculation frame 44;
s4, the wastewater obtained after oil-water separation is discharged into the accident oil pool again through the discharge pipe 5 to be stored and used for the next time without passing through the siphon pipe at the bottom of the oil pool, and meanwhile pollution caused by the fact that waste oil at the bottom of the accident oil pool seeps out from the siphon pipe and flows into the surrounding environment is reduced.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The utility model provides a transformer substation accident oil tank oily wastewater treatment system, includes treatment facility (2) and be used for carrying out dirty mechanism (1) of taking out of sucking with oily mud of oil tank that locate oil tank one side, its characterized in that: the treatment mechanism (2) comprises a treatment tank (21) arranged at one side of the oil tank, a filtering component (25) arranged in the treatment tank (21) for filtering oil-containing sludge and a separating component (26) for separating oil from water, wherein a filter cavity (23) and a separating cavity (24) are arranged in the treatment tank (21), a partition plate (22) for surrounding the filter cavity (23) is arranged in the treatment tank (21), the filtering component (25) is arranged in the filter cavity (23), and the separating component (26) is arranged in the separating cavity (24);
the filter assembly (25) comprises a filter pressing plate (251) arranged in the filter cavity (23), a filter pressing net (252) arranged on the partition plate (22) and a power piece (254) for lifting and driving the filter pressing plate (251), wherein the filter pressing plate (251) is movably attached to the bottom side of the partition plate (22), a filter hole (253) is formed in the periphery of the partition plate (22), and the filter hole (253) is communicated with the separation cavity (24).
2. The substation accident oil pool oily wastewater treatment system of claim 1, wherein: the filter-pressing net (252) is rotatably arranged on the partition board (22), the filter-pressing net (252) is connected with the power piece (254), and the filter-pressing net (252) is attached to the peripheral wall of the partition board (22).
3. A substation event oil pool oily wastewater treatment system as in claim 2, wherein: the power piece (254) comprises a rotating screw rod (2541) which is rotatably arranged in the treatment tank (21), and the filter pressing plate (251) is arranged on the rotating screw rod (2541) in a threaded mode.
4. A substation event oil pool oily wastewater treatment system according to claim 3, wherein: the separation assembly (26) comprises a rotating rod (261) arranged in the separation cavity (24) in a rotating mode and a medicine dropping rod (262) arranged on the rotating rod (261), the medicine dropping rod (262) is arranged in a hollow mode, flocculating agents are arranged in the inner cavity of the medicine dropping rod (262), and flocculation holes (2621) are formed in the medicine dropping rod (262).
5. The transformer substation accident oil pool oily wastewater treatment system according to claim 4, wherein: the medicine dropping rod (262) is further provided with a plugging component (3) for movably plugging the flocculation holes (2621), the medicine dropping rod (262) is obliquely arranged along the direction close to the filter cavity (23) and away from the filter cavity (23), the medicine dropping rod (262) is provided with a plurality of groups of flocculation holes (2621), the flocculation holes (2621) are arranged along the extending direction of the medicine dropping rod (262) at intervals, the plugging component (3) is also provided with a plurality of groups, and the plurality of groups of plugging components (3) are in one-to-one correspondence with the plurality of groups of flocculation holes (2621).
6. The substation event oil pool oily wastewater treatment system of claim 5, wherein: the plugging assembly (3) comprises a plugging plate (31) which is rotatably arranged at a flocculation hole (2621) on the medicine dropping rod (262), the plugging plate (31) is movably attached to the outer periphery side of the medicine dropping rod (262), and the plugging plate (31) is movably attached to liquid in the separation cavity (24).
7. The substation event oil pool oily wastewater treatment system of claim 6, wherein: the blocking plate (31) is further provided with an elastic piece (32), one end of the elastic piece (32) is connected with the drug dropping rod (262), the other end of the elastic piece is connected with the blocking plate (31), and the separating cavity (24) is internally provided with a positioning component (4) for keeping the relative position of the blocking plate (31) and the drug dropping rod (262) constant.
8. The substation event oil pool oily wastewater treatment system of claim 7, wherein: the positioning assembly (4) comprises a supporting rod (41) arranged in the separation cavity (24) in a lifting mode, and a supporting block (43) arranged on the medicine dropping rod (262), wherein the supporting block (43) is movably attached to the outer side wall of the plugging plate (31), the density of the supporting rod (41) is lower than that of oil and water, and the supporting rod (41) is close to the end side of the plugging plate (31) and is movably attached to the plugging plate (31).
9. The substation event oil pool oily wastewater treatment system of claim 8, wherein: the water facing side of the plugging plate (31) is provided with a flocculation frame (44), and flocculation holes (2621) are densely formed in the flocculation frame (44).
10. A method for treating oil-containing wastewater of an accident oil pool of a transformer substation, which is based on the system for treating oil-containing wastewater of the accident oil pool of the transformer substation as claimed in any one of claims 1 to 8, comprising the following steps:
s1, mixing, namely stirring and mixing in an accident oil pool to obtain oil, water and mud mixed liquid;
s2, pumping the mixed liquid obtained in the step S1 into a treatment tank (21) by a sewage pumping mechanism (1), and performing filter pressing through a filter assembly (25), wherein sludge and oily wastewater are separated by the filter pressing;
s3, enabling the oily wastewater obtained in the step S2 to enter a separation cavity (24), adding a flocculating agent into the oily wastewater while stirring the oily wastewater by a medicine dropping rod (262), controlling the adding amount of the flocculating agent according to the different amounts of the oily wastewater, flocculating oil in the oily wastewater, separating oil from water, scraping and collecting waste oil by a flocculation frame (44), and independently collecting the waste oil and the waste water;
s4, collecting and storing the wastewater obtained after oil-water separation until all the oily sludge is treated, and discharging the treated wastewater into an accident oil pool for storage and next use.
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