CN219239354U - Pretreatment device for salt-containing wastewater - Google Patents
Pretreatment device for salt-containing wastewater Download PDFInfo
- Publication number
- CN219239354U CN219239354U CN202223542300.1U CN202223542300U CN219239354U CN 219239354 U CN219239354 U CN 219239354U CN 202223542300 U CN202223542300 U CN 202223542300U CN 219239354 U CN219239354 U CN 219239354U
- Authority
- CN
- China
- Prior art keywords
- pretreatment tank
- pipe
- release
- pretreatment
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 64
- 150000003839 salts Chemical class 0.000 title claims abstract description 17
- 238000007790 scraping Methods 0.000 claims abstract description 38
- 239000010802 sludge Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010865 sewage Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000012267 brine Substances 0.000 claims description 10
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000001112 coagulating effect Effects 0.000 abstract description 8
- 238000004062 sedimentation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 71
- 238000010586 diagram Methods 0.000 description 11
- 239000003814 drug Substances 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 4
- 230000016615 flocculation Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model provides a salt-containing wastewater pretreatment device, which belongs to the technical field of wastewater treatment and comprises a pretreatment tank, an oil scraping component and a plurality of air floatation components; the pretreatment tank is provided with a wastewater inlet and a dosing port; a sewage outlet is arranged at the bottom of the pretreatment tank; the side wall of the pretreatment tank is provided with an oil residue guiding-out part, and the top of the oil residue guiding-out part is downwards sunken with an oil residue groove; the top of the oil residue guiding piece extends upwards and is close to the liquid level of the wastewater; the oil scraping component is arranged at the top of the pretreatment tank; the oil scraping end of the oil scraping assembly extends downwards to the top of the oil residue tank and is used for scraping and conveying light oil sludge into the oil residue tank; the plurality of air floatation assemblies are arranged on the side wall of the pretreatment tank at intervals along the circumferential direction of the pretreatment tank; one end of the air floatation assembly extends into the pretreatment tank and is used for introducing dissolved air water into the pretreatment tank. The pretreatment device for the salt-containing wastewater can finish coagulating sedimentation, demulsification, oil separation and air floatation operation, and has the advantages of high integration degree, simple operation, low cost and good effect.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment, and particularly relates to a pretreatment device for saline wastewater.
Background
Salt-containing wastewater produced in the chemical industry is usually subjected to evaporation treatment. However, most of salt-containing wastewater contains a large amount of suspended matters and oil organic matters, so that the operation of the evaporator is influenced, a large amount of evaporation mother liquor is generated, and the treatment difficulty and the treatment cost of the wastewater are increased. In order to facilitate the treatment of the salt-containing wastewater, suspended matters and oil organic matters in the wastewater are removed through pretreatment, and then subsequent treatment is carried out.
In the prior art, suspended matters are usually removed through coagulating sedimentation, oil organic matters are removed through demulsification, oil separation is carried out, and finally tiny suspended matters and oil drops which are difficult to remove are removed through air floatation. When the operation of coagulating sedimentation, demulsification and air floatation is carried out on the salt-containing wastewater, the operation of coagulating sedimentation, demulsification and air floatation is correspondingly carried out through a plurality of devices, so that the treatment operation of the salt-containing wastewater is complex, the cost is higher, and the treatment efficiency is low.
Disclosure of Invention
The utility model aims to provide a pretreatment device for salt-containing wastewater, which aims to solve the technical problems of complex operation, higher cost and low treatment efficiency of the existing treatment device for salt-containing wastewater.
In order to achieve the above purpose, the utility model adopts the following technical scheme: provided is a pretreatment device for salt-containing wastewater, comprising:
the pretreatment tank is used for containing wastewater to be treated; the pretreatment tank is provided with a wastewater inlet and a dosing port; a sewage outlet is formed in the bottom of the pretreatment tank; the side wall of the pretreatment tank is provided with an oil residue guiding-out part with one end extending into the pretreatment tank, and the top of the oil residue guiding-out part is downwards sunken with an oil residue groove; the top of the oil residue guiding-out part extends upwards and is close to the liquid level of the wastewater;
the oil scraping assembly is arranged at the top of the pretreatment tank; the oil scraping end of the oil scraping assembly extends downwards to the top of the oil residue tank and is used for conveying light oil sludge into the oil residue tank; and
the air floatation assemblies are arranged on the side wall of the pretreatment tank at intervals along the circumferential direction of the pretreatment tank; one end of the air floatation assembly extends into the pretreatment tank and is used for introducing dissolved air water into the pretreatment tank.
In one possible implementation manner, a stirring piece is rotatably connected to the side wall of the pretreatment tank, and one end of the stirring piece extends into the pretreatment tank; the extending end of the stirring piece is communicated with the outside air and is used for introducing air into the pretreatment tank; the top of the pretreatment tank is provided with an exhaust port.
In some embodiments, the stirring element comprises:
a rotating pipe rotatably connected to the side wall of the pretreatment tank, wherein one end of the rotating pipe horizontally extends into the pretreatment tank;
the stirring pipes are arranged at intervals along the axial direction of the rotating pipe at the part of the rotating pipe extending into the pretreatment tank; each stirring pipe is perpendicular to the rotating pipe and communicated with the rotating pipe.
In one possible implementation, the oil scraping assembly includes:
a rotary driving piece arranged at the top of the pretreatment tank; the power output end of the rotary driving piece extends downwards into the pretreatment tank;
the oil scraping slag plate is horizontally arranged in the pretreatment tank, the bottom surface of the oil residue scraping plate is flush with the top of the oil residue groove; the top surface of the oil scraping slag plate is connected with the power output end.
In one possible implementation, the air floatation assembly includes:
the connecting pipe is fixed on the side wall of the pretreatment tank and extends along the radial direction of the pretreatment tank;
the release pipe penetrates through the connecting pipe, one end of the release pipe is fixed with the connecting pipe, and the other end of the release pipe penetrates through the pretreatment tank along the axial direction of the connecting pipe and stretches into the pretreatment tank; the outer peripheral wall of the release pipe is provided with a plurality of first release holes for releasing the dissolved air water.
In some embodiments, the air floatation assembly further comprises a shield disposed within the pretreatment tank; the shielding piece is sleeved outside the release pipe, and one end of the shielding piece extends into the connecting pipe and is rotationally connected with the connecting pipe; the shutter has a first state of blocking the first release aperture and a second state of unseating the first release aperture.
Illustratively, the shield includes:
the semi-fixed pipe is arranged in the pretreatment tank; the semi-fixed pipe is sleeved on the lower half part of the release pipe and is fixedly connected with the connecting pipe;
the semi-movable pipe is arranged between the semi-fixed pipe and the release pipe, and two ends of the semi-movable pipe are respectively connected with the connecting pipe and the semi-fixed pipe in a rotating way;
wherein the shutter is in the first state when the semi-movable tube is rotated to the upper half of the release tube; the shutter is in the second state when the semi-movable tube is rotated to the lower half of the release tube.
Illustratively, the shielding piece comprises a full-motion sleeve sleeved on the release pipe, and the inner peripheral wall of the full-motion sleeve is attached to the outer peripheral wall of the release pipe; the two ends of the full-motion sleeve are respectively connected with the connecting pipe and the release pipe in a rotating way; the full-motion sleeve is provided with second release holes which are in one-to-one correspondence with the first release holes;
wherein the shutter is in the first state when the second release hole and the first release hole are dislocated from each other; the shutter is in the second state when the second release aperture coincides with the axis of the first release aperture.
In some embodiments, an electromagnetic chuck is slidably connected to the outer peripheral wall of the connecting pipe along the circumferential direction of the connecting pipe, and the electromagnetic chuck is adsorbed at one end of the shielding member extending into the connecting pipe.
In one possible implementation manner, a plurality of ultrasonic generators are arranged on the side wall of the pretreatment tank, and the ultrasonic generators are arranged at intervals along the axial direction and the circumferential direction of the pretreatment tank.
Compared with the prior art, the scheme disclosed by the embodiment of the application has the advantages that the demulsifier and the flocculating agent medicaments are added into the pretreatment tank through the medicament adding port, so that the demulsifier and the flocculating agent medicaments are mixed with the wastewater to carry out demulsification or flocculation precipitation reaction; after demulsification or flocculation precipitation reaction is completed, standing and settling the wastewater in a pretreatment tank, leading out sludge from a sewage outlet, floating light oil sludge on the surface layer of the wastewater, scraping the light oil sludge into an oil residue leading-out part through an oil scraping assembly positioned at the top, and leading out the light oil sludge through an oil residue groove; introducing dissolved air water into the pretreatment tank through the air floatation assembly so as to carry out air floatation treatment on wastewater after demulsification and coagulating sedimentation; the device provided by the application can complete coagulating sedimentation, demulsification, oil separation and air floatation operation in the pretreatment tank, integrates multiple functions, and has the advantages of high integration degree, short flow, less investment, small occupied area and flexible operation mode; and the pretreatment efficiency of the salt-containing wastewater is high, and the effect is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a pretreatment device for salt-containing wastewater according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of an air floatation assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of the end face structure at A-A in FIG. 2;
fig. 4 is a schematic structural diagram of an air floatation assembly according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of an end face structure at B-B in FIG. 4;
fig. 6 is a schematic structural diagram III of an air floatation assembly according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of an end face structure at C-C in FIG. 6;
fig. 8 is a schematic structural diagram of an air floatation assembly according to an embodiment of the present utility model;
FIG. 9 is a schematic diagram of the end face structure at D-D in FIG. 8;
fig. 10 is a schematic structural view of an oil residue guiding member according to an embodiment of the present utility model.
In the figure: 1. a pretreatment tank; 11. a waste water inlet; 12. a medicine adding port; 13. a sewage outlet; 14. an exhaust port; 2. an oil residue guiding member; 21. an oil residue tank; 22. a conduit; 3. an oil scraping assembly; 31. a rotary driving member; 32. a scum scraping plate; 4. an air floatation assembly; 41. a connecting pipe; 411. a slideway; 42. a release tube; 421. a first release hole; 43. a shield; 431. a semi-fixed pipe; 432. a semi-movable tube; 433. a full-motion sleeve; 4331. a second release hole; 44. an electromagnetic chuck; 5. a stirring member; 51. a rotary tube; 52. a stirring tube; 6. an ultrasonic generator; 7. a level gauge.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 10, a description will now be given of a pretreatment device for brine wastewater according to the present utility model. The saline wastewater pretreatment device comprises a pretreatment tank 1, an oil scraping component 3 and a plurality of air floatation components 4; the pretreatment tank 1 is used for containing wastewater to be treated; the pretreatment tank 1 is provided with a wastewater inlet 11 and a dosing port 12; the bottom of the pretreatment tank 1 is provided with a sewage outlet 13; the side wall of the pretreatment tank 1 is provided with an oil residue guiding-out part 2 with one end extending into the pretreatment tank 1, and the top of the oil residue guiding-out part 2 is downwards sunken with an oil residue groove 21; the top of the oil residue guiding-out part 2 extends upwards and is close to the liquid level of the wastewater; the oil scraping assembly 3 is arranged at the top of the pretreatment tank 1; the oil scraping end of the oil scraping assembly 3 extends downwards to the top of the oil residue tank 21 and is used for scraping and conveying light oil sludge into the oil residue tank 21; the plurality of air floatation assemblies 4 are arranged on the side wall of the pretreatment tank 1 at intervals along the circumferential direction of the pretreatment tank 1; one end of the air floatation assembly 4 extends into the pretreatment tank 1 and is used for introducing dissolved air water into the pretreatment tank 1.
Alternatively, the wastewater inlet 11 and the dosing port 12 are provided on the side wall of the pretreatment tank 1, and the dosing port 12 is placed above the wastewater inlet 11. So as to add demulsifier and flocculant medicines to the wastewater through the medicine adding port 12. It should be understood that after the demulsifier and the flocculant are added into the wastewater, precipitation reaction is generated between the demulsifier and the flocculant and components in the wastewater to form sludge, and the working principle of the demulsifier and the flocculant belongs to the prior art and is not repeated here.
Specifically, the oil residue guiding member 2 is arranged on the side wall of the pretreatment tank 1 in a penetrating manner, the penetrating end of the oil residue guiding member 2 is used for collecting light oil sludge through the oil residue tank 21, the penetrating end of the oil residue guiding member 2 is used for guiding the light oil sludge into the storage tank through the guide pipe 22, and the guide pipe 22 is communicated with the oil residue tank 21.
Compared with the prior art, the pretreatment device for the salt-containing wastewater can be used for adding demulsifier and flocculant chemicals into the pretreatment tank 1 through the chemical adding port 12 so as to mix the demulsifier and flocculant chemicals with the wastewater for demulsification or flocculation precipitation reaction; after demulsification or flocculation precipitation reaction is completed, standing and settling the wastewater in the pretreatment tank 1, leading out sludge from the sewage outlet 13, floating light oil sludge on the surface layer of the wastewater, scraping the light oil sludge into the oil residue leading-out part 2 through the oil scraping assembly 3 positioned at the top, and leading out the light oil sludge through the oil residue groove 21; then, introducing dissolved air water into the pretreatment tank 1 through the air floatation assembly 4 so as to carry out air floatation treatment on the wastewater after demulsification and coagulating sedimentation; the device provided by the application can complete coagulating sedimentation, demulsification, oil separation and air floatation operation in the pretreatment tank 1, integrates multiple functions, and has the advantages of high integration degree, short flow, less investment, small occupied area and flexible operation mode; and the pretreatment efficiency of the salt-containing wastewater is high, and the effect is good.
Referring to fig. 1, in some possible embodiments, a stirring member 5 is rotatably connected to a side wall of the pretreatment tank 1, one end of the stirring member 5 extends into the pretreatment tank 1, and the extending end of the stirring member 5 is communicated with the outside air for introducing air into the pretreatment tank 1; the top of the pretreatment tank 1 is provided with an exhaust port 14.
It is understood that in the process of adding demulsifiers and flocculating agents into wastewater to generate precipitation, air circulation needs to be ensured.
In the method, the stirring piece 5 is arranged, so that on one hand, the wastewater can be stirred, and the wastewater and the demulsifier and the flocculant medicament are fully mixed, so that suspended matters in the wastewater are fully removed; on the other hand, by communicating the projecting end of the stirring member 5 with the outside air, outside air is introduced into the pretreatment tank 1. In addition, the exhaust port 14 on the pretreatment tank 1 can exhaust the gas to the outside of the pretreatment tank 1, and an air filter or an exhaust gas treatment device is preferably provided at the exhaust port 14 to avoid the harmful gas generated from being directly discharged into the air to affect the environment.
Referring to fig. 1, in some embodiments, the stirring member 5 includes a rotation pipe 51 and a plurality of stirring pipes 52; the rotary pipe 51 is rotatably connected to the side wall of the pretreatment tank 1, and one end of the rotary pipe 51 horizontally extends into the pretreatment tank 1; the plurality of stirring pipes 52 are arranged at intervals along the axial direction of the rotating pipe 51 at the part of the rotating pipe 51 extending into the pretreatment tank 1; each stirring tube 52 is disposed perpendicularly to the rotating tube 51, and communicates with the rotating tube 51.
Specifically, by rotating the rotating pipe 51, each stirring pipe 52 provided in the pretreatment tank 1 is rotated about the axis of the rotating pipe 51, thereby stirring the wastewater; in addition, by providing the stirring member 5 in a tubular structure such as the rotary pipe 51 and the stirring pipe 52, it is possible to easily introduce the outside air into the pretreatment tank 1.
Referring to fig. 1, in some possible embodiments, the oil scraping assembly 3 includes a rotation driving member 31 and an oil scraping plate 32; the rotary driving member 31 is disposed at the top of the pretreatment tank 1; the power output end of the rotary driving piece 31 extends downwards into the pretreatment tank 1; the oil scraping plate 32 is horizontally arranged in the pretreatment tank 1, and the bottom surface of the oil scraping plate 32 is level with the top of the oil slag groove 21; the top surface of the oil scraper 32 is connected to the power take-off.
Wherein, the rotary driving piece 31 is used for driving the oil residue scraping plate 32 to rotate so as to scrape the light oil sludge floating on the surface layer of the wastewater into the oil residue groove 21. Optionally, the rotation driving member 31 may be a driving motor, and the power output end of the driving motor drives the oil residue scraping plate 32 to rotate so as to scrape the light oil sludge into the oil residue tank 21.
Referring to fig. 1, in some possible embodiments, the air floatation assembly 4 includes a connecting tube 41 and a release tube 42; the connection pipe 41 is fixed to a side wall of the pretreatment tank 1 and extends in a radial direction of the pretreatment tank 1; the release pipe 42 is arranged in the connecting pipe 41 in a penetrating way, one end of the release pipe 42 is fixed with the connecting pipe 41, and the other end of the release pipe 42 penetrates through the pretreatment tank 1 along the axial direction of the connecting pipe 41 and stretches into the pretreatment tank 1; the release tube 42 is provided on an outer peripheral wall thereof with a plurality of first release holes 421 for releasing the dissolved air water.
By providing the connection tube 41, the release tube 42 is conveniently fixed, and the connection shutter 43 is conveniently rotated; the dissolved air water introduced into the release pipe 42 enters the pretreatment tank 1 through the first release hole 421 to adhere the non-demulsified oil droplets and the non-settled suspended solids so that the adhered oil droplets and suspended solids float to the surface of the wastewater in the pretreatment tank 1 to be guided out of the pretreatment tank 1 through the oil scraping assembly 3.
Referring to fig. 2-9, in some embodiments, the air floatation assembly 4 further includes a shield 43 disposed within the pretreatment tank 1; the shielding piece 43 is sleeved outside the release pipe 42, and one end of the shielding piece 43 stretches into the connecting pipe 41 and is rotatably connected with the connecting pipe 41; the shutter 43 has a first state of blocking the first release hole 421 and the shutter 43 has a second state of giving way to the first release hole 421.
The shutter 43 is in the second state when the air-floating operation is performed; in other operations, the shutter 43 is in the first state; by providing the shutter 43 so as to cover the column first release hole 421 when other operations are performed, it is avoided that impurities such as sediment or suspended matter clog the first release hole 421, affecting the release of the dissolved air water.
Referring to fig. 2 to 5, as a specific embodiment of the shutter 43, the shutter 43 includes a semi-fixed tube 431 and a semi-movable tube 432; the semi-fixed pipe 431 is arranged in the pretreatment tank 1; the semi-fixed pipe 431 is sleeved on the lower half part of the release pipe 42 and is fixedly connected with the connecting pipe 41; the semi-movable pipe 432 is arranged between the semi-fixed pipe 431 and the release pipe 42, and two ends of the semi-movable pipe 432 are respectively connected with the connecting pipe 41 and the semi-fixed pipe 431 in a rotating way; wherein the shutter 43 is in the first state when the semi-movable tube 432 is rotated to the upper half of the release tube 42; when the semi-movable tube 432 is rotated to the lower half of the release tube 42, the shutter 43 is in the second state.
By rotatably connecting both ends of the semi-movable tube 432 with the connection tube 41 and the semi-fixed tube 431, respectively, it is convenient to switch the shutter 43 between the above-described first state and second state to protect the first release hole 421 from being blocked.
Specifically, fig. 2 is a schematic diagram of the shielding member 43 in the first state, where the semi-fixed pipe 431 is shielded above the release pipe 42 to avoid that impurities such as sediment or suspended matters block the first release hole 421 to affect the release of the dissolved air; fig. 4 is a structural view of the shutter 43 in the second state, in which the entry of the dissolved air water into the pretreatment tank 1 from the first release hole 421 is facilitated.
Optionally, the pore diameter of the first release hole 421 is preferably 2-8mm, and the filler is filled therein, the pore diameter of the filler is larger than that of the first release hole 421, the filler is preferably white corundum, silicon carbide, ore sand, resin, plastic, etc., and the pore diameter of the filler is preferably 10-60 μm.
Referring to fig. 6 to 9, as another specific embodiment of the shielding member 43, the shielding member 43 includes a full-motion sleeve 433 sleeved on the release tube 42, and an inner peripheral wall of the full-motion sleeve 433 is attached to an outer peripheral wall of the release tube 42; two ends of the full-motion sleeve 433 are respectively connected with the connecting pipe 41 and the releasing pipe 42 in a rotating way; the full-motion sleeve 433 is provided with second release holes 4331 which are in one-to-one correspondence with the first release holes 421; wherein, when the second release hole 4331 and the first release hole 421 are dislocated from each other, the shielding member 43 is in the first state; when the second release hole 4331 coincides with the axis of the first release hole 421, the shutter 43 is in the second state.
Specifically, one end of the full-motion sleeve 433 extends into the connecting pipe 41 and is rotatably connected to the connecting pipe 41, and the other end of the full-motion sleeve 433 extends to the extending end of the release pipe 42 and is rotatably connected to the extending end.
By rotationally connecting both ends of the full-motion sleeve 433 with the connection pipe 41 and the release pipe 42, respectively, it is convenient to switch the shutter 43 between the above-described first state and second state to protect the first release hole 421 from clogging.
Specifically, fig. 6 is a structural diagram of the shielding member 43 in the first state, at this time, the second release hole 4331 on the full-motion sleeve 433 is dislocated from the first release hole 421, and the dissolved air and water cannot enter the pretreatment tank 1 through the full-motion sleeve 433, so that the first release hole 421 can be prevented from being blocked by impurities such as sediment or suspended matters; fig. 8 is a structural view of the shielding member 43 in the second state, in which the centers of the first release hole 421 and the second release hole 4331 are aligned, so that the dissolved air water can conveniently enter the pretreatment tank 1 through the first release hole 421 and the second release hole 4331.
Referring to fig. 2 to 9, in some embodiments, an electromagnetic chuck 44 is slidably connected to the outer peripheral wall of the connection tube 41 along the circumferential direction of the connection tube 41, and the electromagnetic chuck 44 is adsorbed to the shielding member 43 at the end extending into the connection tube 41.
Specifically, the electromagnetic chuck 44 is used to adsorb the extending end of the semi-movable tube 432 or the full-movable sleeve 433, and the electromagnetic chuck 44 is rotated to drive the semi-movable tube 432 or the full-movable sleeve 433 to rotate, so that the shielding member 43 is switched between the first state and the second state; the specific structure and working principle of the electromagnetic chuck 44 are all of the prior art, and will not be described herein.
It should be noted that, the outer peripheral wall of the connecting tube 41 is provided with a slide 411, and the electromagnetic chuck 44 slides in the slide 411 to drive the semi-movable tube 432 or the full-movable sleeve 433 to rotate.
Referring to fig. 1, in some possible embodiments, a plurality of ultrasonic generators 6 are provided on a sidewall of the pretreatment tank 1, and the plurality of ultrasonic generators 6 are disposed at intervals in the axial direction and the circumferential direction of the pretreatment tank 1.
By providing a plurality of ultrasonic generators 6, the demulsification effect can be enhanced to improve the wastewater treatment effect.
The pretreatment tank 1 is also provided with a liquid level meter 7 for observing the liquid level of the wastewater in the pretreatment tank 1.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. Salt wastewater pretreatment device, its characterized in that includes:
the pretreatment tank is used for containing wastewater to be treated; the pretreatment tank is provided with a wastewater inlet and a dosing port; the pretreatment tank the bottom is provided with a sewage outlet; the side wall of the pretreatment tank is provided with an oil residue guiding-out part with one end extending into the pretreatment tank, and the top of the oil residue guiding-out part is downwards sunken with an oil residue groove; the top of the oil residue guiding-out part extends upwards and is close to the liquid level of the wastewater;
the oil scraping assembly is arranged at the top of the pretreatment tank; the oil scraping end of the oil scraping assembly extends downwards to the top of the oil residue tank and is used for scraping and conveying light oil sludge into the oil residue tank; and
the air floatation assemblies are arranged on the side wall of the pretreatment tank at intervals along the circumferential direction of the pretreatment tank; one end of the air floatation assembly extends into the pretreatment tank and is used for introducing dissolved air water into the pretreatment tank.
2. The brine wastewater pretreatment device according to claim 1, wherein a stirring piece is rotatably connected to the side wall of the pretreatment tank, and one end of the stirring piece extends into the pretreatment tank; the extending end of the stirring piece is communicated with the outside air and is used for introducing air into the pretreatment tank; the top of the pretreatment tank is provided with an exhaust port.
3. The brine wastewater pretreatment device of claim 2, wherein the stirring member comprises:
a rotating pipe rotatably connected to the side wall of the pretreatment tank, wherein one end of the rotating pipe horizontally extends into the pretreatment tank;
the stirring pipes are arranged at intervals along the axial direction of the rotating pipe at the part of the rotating pipe extending into the pretreatment tank; each stirring pipe is perpendicular to the rotating pipe and communicated with the rotating pipe.
4. The brine wastewater pretreatment device of claim 1 wherein the oil scraping assembly comprises:
a rotary driving piece arranged at the top of the pretreatment tank; the power output end of the rotary driving piece extends downwards into the pretreatment tank;
the oil residue scraping plate is horizontally arranged in the pretreatment tank, and the bottom surface of the oil residue scraping plate is level with the top of the oil residue tank; the top surface of the oil scraping slag plate is connected with the power output end.
5. The brine wastewater pretreatment device of claim 1, wherein the air floatation assembly comprises:
the connecting pipe is fixed on the side wall of the pretreatment tank and extends along the radial direction of the pretreatment tank;
the release pipe penetrates through the connecting pipe, one end of the release pipe is fixed with the connecting pipe, and the other end of the release pipe penetrates through the pretreatment tank along the axial direction of the connecting pipe and stretches into the pretreatment tank; the outer peripheral wall of the release pipe is provided with a plurality of first release holes for releasing the dissolved air water.
6. The brine wastewater pretreatment device of claim 5, wherein the air floatation assembly further comprises a shield disposed within the pretreatment tank; the shielding piece is sleeved outside the release pipe, and one end of the shielding piece extends into the connecting pipe and is rotationally connected with the connecting pipe; the shutter has a first state of blocking the first release aperture and a second state of unseating the first release aperture.
7. The brine wastewater pretreatment device of claim 6 wherein the shield comprises:
the semi-fixed pipe is arranged in the pretreatment tank; the semi-fixed pipe is sleeved on the lower half part of the release pipe and is fixedly connected with the connecting pipe;
the semi-movable pipe is arranged between the semi-fixed pipe and the release pipe, and two ends of the semi-movable pipe are respectively connected with the connecting pipe and the semi-fixed pipe in a rotating way;
wherein the shutter is in the first state when the semi-movable tube is rotated to the upper half of the release tube; the shutter is in the second state when the semi-movable tube is rotated to the lower half of the release tube.
8. The brine wastewater pretreatment device according to claim 6, wherein the shielding member comprises a full-motion sleeve sleeved on the release pipe, and the inner peripheral wall of the full-motion sleeve is attached to the outer peripheral wall of the release pipe; the two ends of the full-motion sleeve are respectively connected with the connecting pipe and the release pipe in a rotating way; the full-motion sleeve is provided with second release holes which are in one-to-one correspondence with the first release holes;
wherein the shutter is in the first state when the second release hole and the first release hole are dislocated from each other; the shutter is in the second state when the second release aperture coincides with the axis of the first release aperture.
9. The brine wastewater pretreatment device according to claim 6, wherein an electromagnetic chuck is slidably connected to the outer peripheral wall of the connecting pipe along the circumferential direction of the connecting pipe, and the electromagnetic chuck is adsorbed to the shielding member at the end extending into the connecting pipe.
10. The brine wastewater pretreatment device according to claim 1, wherein a plurality of ultrasonic generators are arranged on the side wall of the pretreatment tank, and a plurality of ultrasonic generators are arranged at intervals along the axial direction and the circumferential direction of the pretreatment tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223542300.1U CN219239354U (en) | 2022-12-29 | 2022-12-29 | Pretreatment device for salt-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223542300.1U CN219239354U (en) | 2022-12-29 | 2022-12-29 | Pretreatment device for salt-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239354U true CN219239354U (en) | 2023-06-23 |
Family
ID=86808605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223542300.1U Active CN219239354U (en) | 2022-12-29 | 2022-12-29 | Pretreatment device for salt-containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219239354U (en) |
-
2022
- 2022-12-29 CN CN202223542300.1U patent/CN219239354U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101278958B1 (en) | Waste water treatment system | |
| CN104773880B (en) | Sewage treatment technology and equipment for well drilling | |
| CN219239354U (en) | Pretreatment device for salt-containing wastewater | |
| CN113429065A (en) | Two-point water inlet biological rotary drum sewage treatment system | |
| CN215627276U (en) | A air supporting deposits all-in-one for sewage treatment | |
| CN216377711U (en) | Full-automatic high-efficient water purifier | |
| CN109678298A (en) | A kind of comprehensive integration sewage-treatment plant | |
| CN215327190U (en) | Aerobic three-phase separation device and sewage treatment system | |
| KR20110067433A (en) | Rapid agitate machine and waste water cleaning device | |
| JP4248101B2 (en) | Sewage purification equipment | |
| CN209853875U (en) | Integrated water purifying device | |
| CN209178060U (en) | A kind of settlement of sewage reaction unit | |
| KR101461592B1 (en) | Wastewater Disposal Apparatus with Turbulence Wings | |
| CN220665011U (en) | Sediment air supporting integrated device | |
| CN110902787A (en) | Fluidized bed precipitation device and sewage treatment system thereof | |
| CN215975334U (en) | Radioactive decontamination wastewater pretreatment device | |
| CN213739050U (en) | Oil field fracturing fluid effluent treatment plant | |
| CN215798906U (en) | Waste water treatment device is used in PVC product production | |
| CN220537642U (en) | Sewage treatment device for high-efficiency denitrification and dephosphorization | |
| CN213950826U (en) | Precipitation tank for sewage treatment | |
| CN219752100U (en) | High-efficiency baffling coagulation air-floatation complete device | |
| CN221093947U (en) | A add medicine and deposit integrated device that is used for coal industry waste water to remove hard softening | |
| CN112456692B (en) | Sewage treatment equipment | |
| CN208802924U (en) | One kind containing inclined phosphorus waste water dephosphorization device | |
| CN221275579U (en) | Environment-friendly sewage treatment device for chemical plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231213 Address after: No. 136 Fenghua Road, Liuhe District, Nanjing City, Jiangsu Province, 210047 Patentee after: NANJING ENN ENVIROTECH CO.,LTD. Address before: 065001 New Austrian Science Park D Building, 118 Huaxiang Road, Langfang Development Zone, Hebei Province Patentee before: Xindi Environmental Protection Technology Co.,Ltd. |