CN108946990B - Coal wastewater carbon dioxide air flotation device - Google Patents
Coal wastewater carbon dioxide air flotation device Download PDFInfo
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- CN108946990B CN108946990B CN201810818645.4A CN201810818645A CN108946990B CN 108946990 B CN108946990 B CN 108946990B CN 201810818645 A CN201810818645 A CN 201810818645A CN 108946990 B CN108946990 B CN 108946990B
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 245
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 122
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 122
- 239000002351 wastewater Substances 0.000 title claims abstract description 106
- 239000003245 coal Substances 0.000 title claims abstract description 97
- 238000005188 flotation Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims description 37
- 230000000903 blocking effect Effects 0.000 claims description 23
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 22
- 238000000926 separation method Methods 0.000 abstract description 14
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 description 25
- 238000004090 dissolution Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- 241000589651 Zoogloea Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the technical field of wastewater treatment, and particularly relates to a carbon dioxide air flotation device for coal wastewater, which comprises a tower body; the device also comprises a spiral pipe and an air floatation unit; the spiral pipe is positioned in the tower body, one end of the spiral pipe is positioned in the middle of the tower body, the other end of the spiral pipe extends out of the tower body and serves as an air inlet, a plurality of groups of carbon dioxide injection ports are arranged on the outer ring of the spiral pipe, and an air flotation unit is arranged in the spiral pipe; the air floatation unit is fixedly connected to one side provided with a carbon dioxide jet orifice; the side wall of the tower body is provided with a water inlet and a water outlet; the water outlet is positioned above the water inlet. The opening size of the carbon dioxide jet orifice on the spiral pipe is controlled through the air floatation unit, and the amount of carbon dioxide jetted from the carbon dioxide jet orifice is controlled, so that the carbon dioxide and the coal wastewater are fully dissolved, and the separation effect of the air floatation device is improved.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a coal wastewater carbon dioxide air flotation device.
Background
The coal wastewater has very complex composition, contains a large amount of oil, suspended matters and high-concentration toxic and harmful compounds, and is typical industrial wastewater which is difficult to biodegrade. The organic pollutants in the wastewater are various, besides toxic and harmful substances such as phenolic compounds, polycyclic aromatic hydrocarbons, carbazole, naphthalene, pyrrole, furan, biphenyl, oil and the like, a lot of inorganic pollutants such as ammonia nitrogen, sulfide and the like are also contained, the COD value and the chromaticity of the wastewater are high, the biodegradability is poor, and if the wastewater is not treated properly, the environment is seriously polluted. The treatment of the coal wastewater generally comprises three parts of materialized pretreatment, secondary efficient biological treatment and advanced treatment. The physical and chemical pretreatment is to recover the available resource from waste water by extraction, dephenolization, ammonia distillation and other technologies. However, after phenol and ammonia are recovered, the concentration of oil pollutants in the wastewater is still high, oil substances are easily adsorbed to the surface of the zoogloea, oxygen obtained by the zoogloea from water can be prevented, the biochemical effect is seriously influenced, and a large amount of foam can be generated in an aerobic stage to cause sludge floc loss and death. Therefore, oil removal is an important part of the physicochemical pretreatment stage.
The prior art also discloses a technical proposal of a coal wastewater carbon dioxide air floatation device, for example, a Chinese patent with application number of 2015102992858 discloses a coal chemical wastewater carbon dioxide air floatation treatment system, which comprises an air floatation device water inlet, a coagulation reaction area, a contact area, a releaser, a separation area, an air floatation tank water outlet area, an air floatation device wastewater outlet and an air outlet, and also comprises an air floatation device wastewater return water outlet, a carbon dioxide dissolved air tank and an air floatation device dissolved air pump, the water inlet of the air floatation device is connected with the tempering tower, the coagulation reaction area is arranged at the end part of the air floatation device, the contact zone is arranged close to the coagulation reaction zone, the separation zone is arranged close to the contact zone, the water outlet zone of the floatation tank is arranged close to the separation zone, the side surface and the top of the water outlet area of the air floatation tank are respectively provided with a wastewater outlet and an air outlet of the air floatation device; the waste water backflow water outlet of the air floatation device is connected with the air floatation device dissolved air pump, the air floatation device dissolved air pump is connected with the carbon dioxide dissolved air tank, carbon dioxide gas is filled into the carbon dioxide dissolved air tank to form supersaturated carbon dioxide dissolved air liquid, and the carbon dioxide dissolved air tank is connected with the releaser.
According to the technical scheme, the carbon dioxide air floatation treatment system for the coal chemical industry wastewater adopts the carbon dioxide as an air source, adjusts the PH value of the wastewater through the carbon dioxide, can effectively remove oil substances in the wastewater, and avoids introducing other harmful ions. But the technical scheme of the scheme does not control the injection quantity of the carbon dioxide and can not effectively control the dissolution of the carbon dioxide and the coal wastewater; meanwhile, carbon dioxide is extremely insoluble in wastewater, and no effective measures are taken, so that the dissolving efficiency of the carbon dioxide and the wastewater is improved; thereby limiting the technical solution.
Disclosure of Invention
In order to make up for the defects of the prior art, the coal wastewater carbon dioxide air floatation device provided by the invention controls the opening size of the carbon dioxide injection port on the spiral pipe through the air floatation unit, and controls the amount of carbon dioxide injected from the carbon dioxide injection port, so that the carbon dioxide and the coal wastewater are fully dissolved, and the separation effect of the air floatation device is further improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a carbon dioxide air flotation device for coal wastewater, which comprises a tower body; the device also comprises a spiral pipe and an air floatation unit; the spiral pipe is positioned in the tower body, one end of the spiral pipe is positioned in the middle of the tower body, the other end of the spiral pipe extends out of the tower body, the other end of the spiral pipe is used as an air inlet of carbon dioxide, a plurality of groups of carbon dioxide injection orifices are arranged on the outer ring of the spiral pipe, and an air flotation unit is arranged in the spiral pipe; the air floatation unit is fixedly connected to one side provided with a carbon dioxide jet orifice; the side wall of the tower body is provided with a water inlet and a water outlet; the water outlet is positioned above the water inlet; wherein,
the air floating unit comprises an air floating ball, an air floating plate, an arc-shaped stop block, a connecting rod and a limiting plate; one end of the connecting rod is fixedly connected with the air floatation ball, and the other end of the connecting rod is fixedly connected with the air floatation plate; the limiting plate is fixedly connected to one side of the spiral pipe and used for limiting the left-right shaking of the air floating plate; the bottom of the air floating plate is provided with an arc-shaped stop block corresponding to the carbon dioxide jet orifice, and the arc-shaped stop block is used for blocking the carbon dioxide jet orifice; the air floating plate is fixedly connected to one side provided with the carbon dioxide jet orifice through a spring and slides on one side of the limiting plate. When the coal wastewater treatment device works, coal wastewater is conveyed into the tower body from the water inlet, when the liquid level of the coal wastewater overflows the end of the spiral pipe, carbon dioxide is conveyed into the spiral pipe from the air inlet of the spiral pipe, the coal wastewater enters the spiral pipe from one end of the spiral pipe, the air floatation balls move to one side far away from the carbon dioxide jet orifice under the action of the coal wastewater, so that the air floatation ball drives the air floatation plate to slide in the limiting plate, the arc-shaped stop block at the bottom of the air floatation plate is separated from the carbon dioxide jet orifice at the moment, carbon dioxide is jetted out of the spiral pipe from the carbon dioxide jet orifice, the carbon dioxide and the coal wastewater are mutually dissolved, the amount of the carbon dioxide jetted out of the spiral pipe from the carbon dioxide jet orifice is increased along with the fact that the arc-shaped stop block is far away from the carbon dioxide jet orifice, thereby improving the dissolving efficiency of the carbon dioxide and the coal wastewater and further improving the separation effect of the air floatation device.
Preferably, a plurality of groups of grooves are formed in one side of the limiting plate; the two ends of the air floating plate are provided with clamping blocks, the clamping blocks are fixedly connected to the air floating plate through springs, and the clamping blocks are matched with the grooves for use. During operation, through setting up the chucking piece, make the air supporting plate slide on the limiting plate, prevent that the air supporting plate from rocking about going on to influence the efficiency of opening of carbon dioxide jet.
Preferably, one end of the spiral pipe extending out of the tower body is provided with a driving unit; the driving unit comprises a driving motor, a driving gear and a driven gear; the driven gear is sleeved on the outer ring of the spiral pipe; the driving motor is fixedly arranged at the top of the tower body and is fixedly connected with the driving gear through a rotating shaft; the driving gear is driven by the driving motor to rotate in a meshed mode with the driven gear. When the coal dissolving device works, the spiral pipe is driven to rotate by the driving motor, so that carbon dioxide is jetted out from the carbon dioxide jet orifice in a rotary mode, the mixing contact area of the carbon dioxide and coal wastewater is increased, and the dissolving efficiency is improved; simultaneously, the spiral pipe rotates, the effect of stirring is played in the dissolution of carbon dioxide and coal wastewater, and carbon dioxide is dissolved with the coal wastewater more quickly in the stirring, so that the dissolution efficiency is improved.
Preferably, the bottom end of the spiral pipe is provided with a blocking module; the blocking module comprises a first plate, a second plate and a triangular stop block; one end of the first plate is in contact with one end of the second plate, the other end of the first plate is hinged to the side wall of the spiral pipe, and a torsion spring is arranged at the hinged position; one end of the second plate, which is far away from the first plate, is hinged on the side wall of the spiral pipe, and a torsional spring is arranged at the hinged position; an arc-shaped groove and a triangular stop block are arranged on one side of the first plate and one side of the second plate; the triangular stop block is positioned at the outlet of the spiral pipe and used for the unidirectional rotation of the first plate and the second plate. When the spiral pipe type carbon dioxide gas generator works, the blocking module is arranged, so that the first plate and the second plate do not rotate under the action of carbon dioxide due to the action of the triangular stop block when carbon dioxide gas flows from the inside of the spiral pipe to the opening at the bottom end of the spiral pipe; when coal waste water contacts the spiral pipe opening, the arc wall increases the area of contact with coal waste water, and under the effect of coal waste water, a board and a second board rotate to the one side of keeping away from the triangle-shaped dog, and coal waste water enters into the spiral pipe to the separation effect of air supporting device has been guaranteed.
Preferably, the end head of the bottom of the spiral pipe is provided with a blocking unit; the blocking unit comprises a third plate and a trapezoidal air floating block; a hollow cavity is arranged in the third plate, and a trapezoidal hole is formed in one side of the third plate, which is close to the outlet of the spiral pipe; the trapezoidal hole is used with trapezoidal air supporting block cooperation, and trapezoidal air supporting block links firmly on No. three boards through the spring. When the air floatation device works, the blocking unit is arranged, so that the trapezoidal air floatation blocks cannot be separated from the trapezoidal holes under the action of carbon dioxide gas, and the trapezoidal holes are blocked by the air floatation blocks; when the liquid level height of coal waste water was higher than No. three boards, the air supporting piece was under the effect of coal waste water, and the air supporting piece is to keeping away from the one side motion in trapezoidal hole, and the trapezoidal hole is opened, and coal waste water enters into the hollow cavity of No. three boards, enters into the spiral plate afterwards to the separation effect of air supporting device has been guaranteed.
Preferably, a filtering unit is arranged inside the tower body; the filter unit is positioned below the spiral pipe and comprises a first filter plate, a second filter plate and an elastic sleeve; the second filter plate is fixedly arranged on the side wall of the tower body; the first filter plate is arranged above the second filter plate and fixedly connected with the second filter plate through an elastic sleeve; a first hole is formed in the first filter plate; one side surface of the second filter plate, which is close to the first filter plate, is designed to be in an arc shape, and the second filter plate is provided with a second hole; the cross-sectional shape of No. two holes is trapezoidal, and the opening is big for one side that is close to a filter in No. two holes, and the opening is little for one side of keeping away from a filter in No. two holes. When the coal wastewater treatment device works, because the coal wastewater contains impurities, the impurities in the coal wastewater are filtered by the filter unit, so that carbon dioxide is dissolved in the filtered coal wastewater; when coal waste water passes through No. two filters, No. two pore pair coal waste water impurity carry out primary filter, when coal waste water reachd a filter, a pore pair coal waste water carries out secondary filter, and the impurity in the coal waste water behind a filter filters totally, and the impurity that leaves through filtering is arc owing to one side of No. two filters, and the impurity is all stayed the minimum at the arc surface, and the impurity is taken out from the tower body in minimum department.
Preferably, a first groove is formed in the first filter plate, and an electromagnet is arranged in the first groove; a sliding telescopic rod is arranged below the electromagnet; the outside cover of slip telescopic link is equipped with the spring, and the slip telescopic link is made by magnetic material, and slip telescopic link one end links firmly on No. two filter, and the slip telescopic link other end is located the below of electro-magnet. When the coal wastewater filtering device works, when the coal wastewater passes through the first filtering unit, impurities in the coal wastewater are completely filtered through the first hole, and the impurities are attached to the bottom of the first filtering plate and are not pumped out of the tower body, so that the filtering effect of the first filtering plate is influenced by long-time accumulation; an electromagnet is arranged on one side of the first filter plate, when the electromagnet is powered on, the sliding telescopic rod is in contact with the electromagnet, and when the electromagnet is powered off, the sliding telescopic rod is reset under the action of a spring; through mutually supporting of the break-make electricity of electro-magnet for impurity is shaken from a filter entirely and is fallen, thereby has improved the filter effect of a filter.
The invention has the following beneficial effects:
1. according to the coal wastewater carbon dioxide air floatation device, the size of the opening of the carbon dioxide injection port on the spiral pipe is controlled through the air floatation unit, and the amount of carbon dioxide injected from the carbon dioxide injection port is controlled, so that the carbon dioxide and the coal wastewater are fully dissolved, and the separation effect of the air floatation device is improved.
2. According to the coal wastewater carbon dioxide air floatation device, the driving unit is arranged, so that when carbon dioxide is jetted out from the carbon dioxide jet orifice in a rotary mode, the contact area of the carbon dioxide and the coal wastewater is increased, and the dissolving efficiency of the carbon dioxide and the coal wastewater is improved; meanwhile, the spiral pipe rotates to play a role in stirring the dissolution of the carbon dioxide and the coal wastewater, so that the dissolution of the carbon dioxide and the coal wastewater is increased, and the dissolution efficiency is improved.
3. According to the coal wastewater carbon dioxide air floatation device, the blocking unit is arranged, so that the size of the carbon dioxide injection port is better controlled by the air floatation unit, and the separation effect of the air floatation device is improved.
4. According to the coal wastewater carbon dioxide air floatation device, the filtering unit is arranged, and the first filtering plate and the second filtering plate in the filtering unit are matched to filter impurities in coal wastewater, so that the dissolving efficiency of carbon dioxide and filtered coal wastewater is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the spiral pipe;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view and a schematic view of a barrier unit;
FIG. 5 is a cross-sectional view and another schematic structural view of a barrier unit;
in the figure: the device comprises a tower body 1, a water inlet 11, a water outlet 12, a spiral pipe 2, an air inlet 21, a carbon dioxide injection port 22, an air flotation unit 3, an air flotation ball 31, an air flotation plate 32, an arc-shaped stop block 33, a connecting rod 34, a limiting plate 35, a groove 36, a clamping block 37, an arc-shaped groove 38, a driving unit 4, a driving motor 41, a driving gear 42, a driven gear 43, a blocking unit 5, a third plate 54, a trapezoidal air flotation block 55, a trapezoidal hole 56, a filtering unit 6, a first filtering plate 61, a second filtering plate 62, an elastic sleeve 63, a first hole 64, a second hole 65, a first groove 66, an electromagnet 67, a sliding telescopic rod 68, a blocking module 7, a first plate 71, a second plate 72 and a triangular stop block 73.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the coal wastewater carbon dioxide floatation device of the invention comprises a tower body 1; the device also comprises a spiral pipe 2 and an air floating unit 3; the spiral pipe 2 is positioned in the tower body 1, one end of the spiral pipe 2 is positioned in the middle of the tower body 1, the other end of the spiral pipe 2 extends out of the tower body 1, the other end of the spiral pipe 2 serves as an air inlet 21 of carbon dioxide, a plurality of groups of carbon dioxide injection ports 22 are arranged on the outer ring of the spiral pipe 2, and an air flotation unit 3 is arranged in the spiral pipe 2; the air floatation unit 3 is fixedly connected with one side provided with a carbon dioxide jet orifice 22; the side wall of the tower body 1 is provided with a water inlet 11 and a water outlet 12; the water outlet 12 is positioned above the water inlet 11; wherein,
the air floating unit 3 comprises an air floating ball 31, an air floating plate 32, an arc-shaped stop block 33, a connecting rod 34 and a limit plate 35; one end of the connecting rod 34 is fixedly connected with the air floating ball 31, and the other end of the connecting rod 34 is fixedly connected with the air floating plate 32; the limiting plate 35 is fixedly connected to one side of the spiral pipe 2, and the limiting plate 35 is used for limiting the left-right shaking of the air floating plate 32; the bottom of the air floating plate 32 is provided with an arc-shaped stop 33 corresponding to the carbon dioxide injection port 22, and the arc-shaped stop 33 is used for blocking the carbon dioxide injection port 22; the air floating plate 32 is fixedly connected to one side provided with the carbon dioxide injection port 22 through a spring, and the air floating plate 32 slides on one side of the limiting plate 35. When the coal wastewater treatment device works, coal wastewater is conveyed into the tower body 1 from the water inlet 11, when the liquid level of the coal wastewater overflows the end of the spiral pipe 2, carbon dioxide is conveyed into the spiral pipe 2 from the air inlet 21 of the spiral pipe 2 at the moment, the coal wastewater enters the spiral pipe 2 from one end of the spiral pipe 2, the air floating ball 31 moves towards one side far away from the carbon dioxide jet orifice 22 under the action of the coal wastewater, so that the air floating ball 31 drives the air floating plate 32 to slide in the limiting plate 35, the arc-shaped stop block 33 at the bottom of the air floating plate 32 is separated from the carbon dioxide jet orifice 22 at the moment, carbon dioxide is jetted out of the spiral pipe 2 from the carbon dioxide jet orifice 22, the carbon dioxide and the coal wastewater are mutually dissolved, the farther the carbon dioxide is jetted out of the spiral pipe 2 from the carbon dioxide jet orifice 22 along with the arc-shaped stop block 33, and the dissolving efficiency of the carbon dioxide and the coal wastewater is improved, thereby improving the separation effect of the air floatation device.
As an embodiment of the present invention, one side of the limiting plate 35 is provided with a plurality of groups of grooves 36; the both ends of air supporting plate 32 are equipped with chucking piece 37, chucking piece 37 links firmly on air supporting plate 32 through the spring, and chucking piece 37 and recess 36 cooperation are used. During operation, through setting up chucking piece 37, make air supporting plate 32 slide on limiting plate 35, prevent that air supporting plate 32 from rocking from side to influence the efficiency of opening of carbon dioxide jet 22.
As an embodiment of the present invention, one end of the spiral pipe 2 extending out of the tower body 1 is provided with a driving unit 4; the driving unit 4 comprises a driving motor 41, a driving gear 42 and a driven gear 43; the driven gear 43 is sleeved on the outer ring of the spiral tube 2; the driving motor 41 is fixedly arranged at the top of the tower body 1, and the driving motor 41 is fixedly connected with the driving gear 42 through a rotating shaft; the driving gear 42 is driven by the driving motor 41 to rotate in mesh with the driven gear 43. When the device works, the spiral pipe 2 is driven to rotate by the driving motor 41, so that carbon dioxide is jetted from the carbon dioxide jet orifice 22 in a rotary mode, the mixing contact area of the carbon dioxide and coal wastewater is increased, and the dissolving efficiency is improved; simultaneously, the spiral pipe 2 rotates to dissolve carbon dioxide and coal wastewater to play a stirring role, so that carbon dioxide is dissolved with the coal wastewater more quickly in stirring, and the dissolving efficiency is improved.
As an embodiment of the present invention, the bottom end of the spiral pipe 2 is provided with a blocking module 7; the blocking module 7 comprises a first plate 71, a second plate 72 and a triangular block 73; one end of the first plate 71 is contacted with one end of the second plate 72, the other end of the first plate 71 is hinged on the side wall of the spiral pipe 2, and a torsion spring is arranged at the hinged position; one end of the second plate 72, which is far away from the first plate 71, is hinged on the side wall of the spiral pipe 2, and a torsion spring is arranged at the hinged position; an arc-shaped groove 38 and a triangular stop 73 are arranged on one side of the first plate 71 and one side of the second plate 72; the triangular stop 73 is positioned at the outlet of the spiral pipe 2, and the triangular stop 73 is used for the unidirectional rotation of the first plate 71 and the second plate 72. When the device works, the blocking module 7 is arranged, when carbon dioxide gas flows from the inside of the spiral pipe 2 to the opening of the spiral pipe 2, the first plate 71 and the second plate 72 do not rotate under the action of the carbon dioxide due to the action of the triangular block 73; when the coal wastewater contacts the end opening of the spiral pipe 2, the arc-shaped groove 38 increases the contact area with the coal wastewater, the first plate 71 and the second plate 72 rotate to one side far away from the triangular stop block 73 under the action of the coal wastewater, and the coal wastewater enters the spiral pipe 2, so that the separation effect of the air flotation device is ensured.
As an embodiment of the invention, the end of the spiral pipe 2 is provided with a blocking unit 5; the blocking unit 5 comprises a third plate 54 and a trapezoidal air floating block 55; a hollow cavity is arranged inside the third plate 54, and a trapezoidal hole 56 is formed in one side of the third plate 54 close to the outlet of the spiral pipe 2; the trapezoidal hole 56 is matched with the trapezoidal air floating block 55, and the trapezoidal air floating block 55 is fixedly connected to the third plate 54 through a spring. When the air floatation device works, the blocking unit 5 is arranged, the trapezoidal air floatation block 55 cannot be separated from the trapezoidal hole 56 under the action of carbon dioxide gas, and the trapezoidal hole 56 is blocked by the air floatation block; when the liquid level height of coal waste water was higher than No. three board 54, the air supporting piece was under the effect of coal waste water, and the air supporting piece is to keeping away from the one side motion of trapezoidal hole 56, and trapezoidal hole 56 is opened, and coal waste water enters into No. three board 54's hollow cavity, enters into the spiral plate afterwards to the separation effect of air supporting device has been guaranteed.
As an embodiment of the present invention, a filtering unit 6 is disposed inside the tower body 1; the filtering unit 6 is positioned below the spiral pipe 2, and the filtering unit 6 comprises a first filtering plate 61, a second filtering plate 62 and an elastic sleeve 63; the second filter plate 62 is fixedly arranged on the side wall of the tower body 1; the first filter plate 61 is arranged above the second filter plate 62, and the first filter plate 61 is fixedly connected with the second filter plate 62 through an elastic sleeve 63; the first filtering plate 61 is provided with a first hole 64; one side surface of the second filter plate 62, which is close to the first filter plate 61, is arc-shaped, and a second hole 65 is formed in the second filter plate 62; no. two hole 65's cross-sectional shape is trapezoidal, and the one side opening that is close to a filter 61 in No. two holes 65 is big, and the one side opening that keeps away from a filter 61 in No. two holes 65 is little. During operation, because the coal wastewater contains impurities, the impurities in the coal wastewater are filtered by the filter unit 6, so that carbon dioxide is dissolved in the filtered coal wastewater; when coal waste water passes through No. two filter 62, No. two holes 65 carry out primary filter to the impurity in the coal waste water, when coal waste water reachd filter 61, No. one hole 64 carries out secondary filter to coal waste water, the impurity in the coal waste water after through a filter 61 filters totally, and the impurity that leaves through filtering is arc owing to one side of No. two filter 62, and the impurity all stays the minimum at the arc surface, and the impurity is taken out from tower body 1 in minimum department.
As an embodiment of the present invention, a first groove 66 is formed on the first filter plate 61, and an electromagnet 67 is arranged in the first groove 66; a sliding telescopic rod 68 is arranged below the electromagnet 67; the spring is sleeved on the outer side of the sliding telescopic rod 68, the sliding telescopic rod 68 is made of a magnetic material, one end of the sliding telescopic rod 68 is fixedly connected to the second filter plate 62, and the other end of the sliding telescopic rod 68 is located below the electromagnet 67. During operation, when the coal wastewater passes through the first filtering unit 6, impurities in the coal wastewater are filtered out through the first hole 64, and the impurities are attached to the bottom of the first filtering plate 61 and are not drawn out of the tower body 1, so that the filtering effect of the first filtering plate 61 is influenced by long-time accumulation; by arranging the electromagnet 67 on one side of the first filter plate 61, when the electromagnet 67 is powered on, the sliding telescopic rod 68 is in contact with the electromagnet 67, and when the electromagnet 67 is powered off, the sliding telescopic rod 68 is reset under the action of the spring; mutually support of break-make electricity through electro-magnet 67 for impurity is shaken from a filter 61 entirely and is fallen, thereby has improved the filter effect of a filter 61.
When the coal wastewater filtering device works, coal wastewater is conveyed into the tower body 1 from the water inlet 11, when the coal wastewater passes through the filtering unit 6, the first filtering plate 61 and the second filtering plate 62 are matched to filter the coal wastewater, impurities on the first filtering plate 61 are electrified and deenergized through the electromagnet 67, so that the impurities are vibrated down, the filtered impurities are gathered together through the arc surface of the second filtering plate 62, the impurities are pumped out of the tower body 1, when the liquid level of the filtered coal wastewater overflows the end of the spiral pipe 2, carbon dioxide is conveyed into the spiral pipe 2 from the air inlet 21 of the spiral pipe 2 at the moment, the coal wastewater passes through the blocking unit 5, the coal wastewater enters the inside of the spiral pipe 2 from the end part of the spiral pipe 2, the air floating ball 31 moves to one side far away from the carbon dioxide injection port 22 under the action of the coal wastewater, so that the air floating ball 31 drives the air floating plate 32 to slide in the limiting plate 35, at this time, the arc-shaped block 33 at the bottom of the air floating plate 32 is separated from the carbon dioxide injection port 22, carbon dioxide is sprayed out of the spiral pipe 2 from the carbon dioxide injection port 22, the carbon dioxide and the coal wastewater are mutually dissolved, and the amount of the carbon dioxide sprayed out of the spiral pipe 2 from the carbon dioxide injection port 22 is increased along with the fact that the arc-shaped block 33 is far away from the carbon dioxide injection port 22, so that the dissolving efficiency of the carbon dioxide and the coal wastewater is improved; meanwhile, the spiral pipe 2 is driven to rotate by the driving motor 41, so that carbon dioxide is jetted from the carbon dioxide jet orifice 22 in a rotary mode, the mixing contact area of the carbon dioxide and the coal wastewater is increased, and the dissolving efficiency is improved; the rotation of spiral pipe 2 plays the effect of stirring to the dissolution of carbon dioxide and coal waste water, makes carbon dioxide faster dissolve with coal waste water in the stirring to improved dissolving efficiency, and then improved the separation effect of air supporting device.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (1)
1. A coal wastewater carbon dioxide air flotation device, which comprises a tower body (1); the method is characterized in that: the device also comprises a spiral pipe (2) and an air floating unit (3); the spiral pipe (2) is positioned inside the tower body (1), one end of the spiral pipe (2) is positioned in the middle of the tower body (1), the other end of the spiral pipe (2) extends out of the tower body (1), the other end of the spiral pipe (2) serves as an air inlet (21) of carbon dioxide, a plurality of groups of carbon dioxide injection nozzles (22) are arranged on the outer ring of the spiral pipe (2), and an air flotation unit (3) is arranged inside the spiral pipe (2); the air floatation unit (3) is fixedly connected to one side provided with a carbon dioxide jet orifice (22); a water inlet (11) and a water outlet (12) are formed in the side wall of the tower body (1); the water outlet (12) is positioned above the water inlet (11); wherein,
the air floating unit (3) comprises an air floating ball (31), an air floating plate (32), an arc-shaped stop block (33), a connecting rod (34) and a limiting plate (35); one end of the connecting rod (34) is fixedly connected with the air floating ball (31), and the other end of the connecting rod (34) is fixedly connected with the air floating plate (32); the limiting plate (35) is fixedly connected to one side of the spiral pipe (2), and the limiting plate (35) is used for limiting the left-right shaking of the air floating plate (32); the bottom of the air floating plate (32) is provided with an arc-shaped stop block (33) corresponding to the carbon dioxide injection port (22), and the arc-shaped stop block (33) is used for blocking the carbon dioxide injection port (22); the air floating plate (32) is fixedly connected to one side provided with the carbon dioxide jet orifice (22) through a spring, and the air floating plate (32) slides on one side of the limiting plate (35);
a plurality of groups of grooves (36) are formed in one side of the limiting plate (35); clamping blocks (37) are arranged at two ends of the air floating plate (32), the clamping blocks (37) are fixedly connected to the air floating plate (32) through springs, and the clamping blocks (37) are matched with the grooves (36) for use;
a driving unit (4) is arranged at one end of the spiral pipe (2) extending out of the tower body (1); the driving unit (4) comprises a driving motor (41), a driving gear (42) and a driven gear (43); the driven gear (43) is sleeved on the outer ring of the spiral tube (2); the driving motor (41) is fixedly arranged at the top of the tower body (1), and the driving motor (41) is fixedly connected with the driving gear (42) through a rotating shaft; the driving gear (42) is driven by the driving motor (41) to be meshed with the driven gear (43) to rotate;
a blocking module (7) is arranged at the bottom end of the spiral pipe (2); the blocking module (7) comprises a first plate (71), a second plate (72) and a triangular stop block (73); one end of the first plate (71) is in contact with one end of the second plate (72), the other end of the first plate (71) is hinged to the side wall of the spiral pipe (2), and a torsion spring is arranged at the hinged position; one end of the second plate (72), which is far away from the first plate (71), is hinged to the side wall of the spiral pipe (2), and a torsion spring is arranged at the hinged position; an arc-shaped groove (38) and a triangular stop block (73) are arranged on one side of the first plate (71) and one side of the second plate (72); the triangular stop block (73) is positioned at the outlet of the spiral pipe (2), and the triangular stop block (73) is used for the unidirectional rotation of the first plate (71) and the second plate (72);
a blocking unit (5) is arranged at the bottom end of the spiral pipe (2); the blocking unit (5) comprises a third plate (54) and a trapezoidal air floating block (55); a hollow cavity is arranged inside the third plate (54), and a trapezoidal hole (56) is formed in one side, close to the outlet of the spiral pipe (2), of the third plate (54); the trapezoidal hole (56) is matched with the trapezoidal air floating block (55) for use, and the trapezoidal air floating block (55) is fixedly connected to the third plate (54) through a spring;
a filtering unit (6) is arranged in the tower body (1); the filtering unit (6) is positioned below the spiral pipe (2), and the filtering unit (6) comprises a first filtering plate (61), a second filtering plate (62) and an elastic sleeve (63); the second filter plate (62) is fixedly arranged on the side wall of the tower body (1); the first filter plate (61) is arranged above the second filter plate (62), and the first filter plate (61) is fixedly connected with the second filter plate (62) through an elastic sleeve (63); the first filtering plate (61) is provided with a first hole (64); one side surface of the second filter plate (62) close to the first filter plate (61) is arc-shaped, and a second hole (65) is formed in the second filter plate (62); the section of the second hole (65) is trapezoidal, an opening on one side, close to the first filter plate (61), of the second hole (65) is large, and an opening on one side, far away from the first filter plate (61), of the second hole (65) is small;
a first groove (66) is formed in the first filter plate (61), and an electromagnet (67) is arranged in the first groove (66); a sliding telescopic rod (68) is arranged below the electromagnet (67); the outer side of the sliding telescopic rod (68) is sleeved with a spring, the sliding telescopic rod (68) is made of a magnetic material, one end of the sliding telescopic rod (68) is fixedly connected to the second filter plate (62), and the other end of the sliding telescopic rod (68) is located below the electromagnet (67).
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| CN201810818645.4A CN108946990B (en) | 2018-07-24 | 2018-07-24 | Coal wastewater carbon dioxide air flotation device |
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| CN201810818645.4A CN108946990B (en) | 2018-07-24 | 2018-07-24 | Coal wastewater carbon dioxide air flotation device |
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| CN108946990B true CN108946990B (en) | 2021-12-14 |
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| CN110821846B (en) * | 2019-12-02 | 2021-04-27 | 天长市中天实业有限责任公司 | Water inlet anti-blocking type submersible axial flow pump |
| CN112194222A (en) * | 2020-09-28 | 2021-01-08 | 徐明生 | Activated carbon core convenient to quick block |
| CN113461096B (en) * | 2021-08-13 | 2024-06-04 | 汪洋 | Vortex air floatation device |
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