CN117623559B - Chlorinated polyethylene wastewater desalination treatment device - Google Patents
Chlorinated polyethylene wastewater desalination treatment device Download PDFInfo
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- CN117623559B CN117623559B CN202410066295.6A CN202410066295A CN117623559B CN 117623559 B CN117623559 B CN 117623559B CN 202410066295 A CN202410066295 A CN 202410066295A CN 117623559 B CN117623559 B CN 117623559B
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- elastic tube
- pipeline
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- 239000004709 Chlorinated polyethylene Substances 0.000 title claims abstract description 54
- 239000002351 wastewater Substances 0.000 title claims abstract description 24
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 238000004821 distillation Methods 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 30
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 21
- 238000001179 sorption measurement Methods 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 239000003513 alkali Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 88
- 230000002093 peripheral effect Effects 0.000 claims description 31
- 239000004744 fabric Substances 0.000 claims description 24
- 238000003860 storage Methods 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 7
- 239000013049 sediment Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 66
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 36
- 239000001110 calcium chloride Substances 0.000 description 35
- 229910001628 calcium chloride Inorganic materials 0.000 description 35
- 239000011259 mixed solution Substances 0.000 description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 230000007935 neutral effect Effects 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 10
- VDDRNXHIJFHESZ-UHFFFAOYSA-L calcium dichloride hydrochloride Chemical compound Cl.[Cl-].[Cl-].[Ca+2] VDDRNXHIJFHESZ-UHFFFAOYSA-L 0.000 description 7
- 239000000284 extract Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- -1 Polyethylene Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- 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)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The application relates to the technical field of wastewater treatment equipment, and particularly discloses a chlorinated polyethylene wastewater desalination treatment device which comprises a treatment tank, wherein a feed inlet on the treatment tank is communicated with a discharge port of a reaction tank, an alkali water tank and a clear water tank; the discharge gate intercommunication of transfer jar has the feed inlet of adsorption tank, and the discharge gate intercommunication of adsorption tank has membrane separation device feed inlet, and membrane separation device's discharge gate intercommunication has the feed inlet of neutralization jar, and the feed inlet intercommunication of neutralization jar has the feed inlet of filter-pressing jar, and the feed inlet of filter-pressing jar communicates in the feed inlet of distillation column. The application has the effect of reducing the waste of water resources in the wastewater treatment process.
Description
Technical Field
The invention relates to the technical field of wastewater treatment equipment, in particular to a chlorinated polyethylene wastewater desalination treatment device.
Background
Chlorinated Polyethylene (Chlorinated Polyethylene, CPE) is a synthetic polymeric material obtained by the chlorination of Polyethylene (PE).
A large amount of acid wastewater is generated in the production of chlorinated polyethylene, and the wastewater contains organic matters, salts and the like; in order to discharge the wastewater generated in the production of chlorinated polyethylene, the wastewater needs to be treated, in the related technology, a large amount of water resources need to be consumed when the pH value of CPE is regulated and the CPE is cleaned, the water flows along with the whole set of treatment device and is finally stored, and the stored water is discharged after the pH value treatment, so that a large amount of water resources are wasted.
Disclosure of Invention
The application provides a chlorinated polyethylene wastewater desalination treatment device for reducing the waste of water resources in the wastewater treatment process.
The application provides a chlorinated polyethylene wastewater desalination treatment device which adopts the following technical scheme:
The utility model provides a chlorinated polyethylene wastewater desalination treatment device, includes the treatment jar, the feed inlet intercommunication on the treatment jar has the discharge gate of retort, alkali water tank and clean water tank, the discharge gate on the treatment jar communicates there is the feed inlet of centrifugal tank, distillation column and transfer pot, the discharge gate of distillation column communicates in the feed inlet of alkali water tank and clean water tank, the discharge gate of centrifugal tank communicates there is the feed inlet of temporary storage tank, the discharge gate of temporary storage tank communicates in on the pipeline between clean water tank and the treatment tank; the discharge gate intercommunication of transfer jar has the feed inlet of adsorption tank, the discharge gate intercommunication of adsorption tank has membrane separation device feed inlet, membrane separation device's discharge gate intercommunication has the feed inlet of neutralization tank, the feed inlet intercommunication of neutralization tank has the feed inlet of filter-pressing jar, the discharge gate intercommunication of filter-pressing jar in the feed inlet of distillation column.
Optionally, a drying device is arranged at one side of the centrifugal tank, and CEP at the lower layer of the centrifugal tank is conveyed into the drying device for drying; a storage tank is arranged at one side of the neutralization tank, and alkaline substances are stored in the storage tank; one side of the filter pressing tank is provided with a sedimentation tank, and the sedimentation tank is used for placing sediment.
Optionally, the treatment tank comprises a mounting rack, a tank body, an upper end socket, a lower end socket, a stirring mechanism and a buoy, wherein the tank body is mounted in the mounting rack, the upper end socket is connected with the top end surface of the tank body, the lower end socket is connected with the bottom end surface of the tank body, the stirring mechanism is mounted in the tank body, and the stirring mechanism is used for stirring the slurry; the buoy is arranged in the tank body, a first elastic tube and a second elastic tube are arranged on the top surface of the buoy, the bottom ends of the first elastic tube and the second elastic tube penetrate through the bottom surface of the buoy, the top ends of the first elastic tube and the second elastic tube penetrate through the top surface of the upper seal head and are fixed on the surface of the upper seal head, the top ends of the first elastic tubes are communicated with a feed inlet of the distillation tower through pipelines, and the top ends of the second elastic tubes are communicated with a feed inlet of the transfer tank through pipelines; the top surface of the upper seal head is communicated with a CEP feeding pipe, a clear water feeding pipe and an alkaline water feeding pipe, the CEP feeding pipe is communicated with a discharge port of the reaction tank through a pipeline, the alkaline water feeding pipe is communicated with a discharge port of the alkaline water tank through a pipeline, and the clear water feeding pipe is communicated with a discharge port of the clear water tank through a pipeline; the bottom surface of low head intercommunication has the CEP discharging pipe, the CEP discharging pipe passes through the pipeline intercommunication in the feed inlet of centrifugal jar.
Optionally, the stirring mechanism comprises a stirring shaft, a stirring paddle and a driving source, the stirring shaft is rotationally connected to the middle position of the upper end socket, the bottom end of the stirring shaft extends to the lower end socket, the top end of the stirring shaft extends out of the upper end socket, the stirring paddle is mounted at the bottom end of the stirring shaft, and the stirring paddle is used for stirring CPE; the driving source is arranged on the surface of the upper sealing head and is used for driving the stirring shaft to rotate.
Optionally, the buoy is circular, the buoy cover is located the (mixing) shaft outer peripheral face, first elastic tube with the second elastic tube is the spiral around setting up as the center with the axis of (mixing) shaft, first elastic tube with the second elastic tube is central symmetry with the (mixing) shaft axis.
Optionally, the (mixing) shaft outer peripheral face cover is equipped with the sleeve pipe, the sleeve pipe connect in the internal surface of upper cover, the internal surface of buoy is connected with two symmetrically set up the connecting rod, two be connected with the sliding ring between the connecting rod, the sliding ring slide in sheathed tube outer peripheral face, the sleeve pipe outer peripheral face is connected with two symmetrical gibs, the gib is followed (mixing) shaft axis direction sets up, the sliding ring internal surface be provided with two the guide way of gib mutually supporting.
Optionally, the bottom surface of the buoy is connected with an annular pipeline, the annular pipeline is sleeved outside the stirring shaft, the cross section of the annular pipeline is semicircular, and the plane side of the annular pipeline is attached to the bottom surface of the buoy; the circular arc surface of the annular pipeline is provided with two mounting grooves, the two mounting grooves are symmetrically arranged about the circle center of the annular pipeline, the mounting grooves are circular arc grooves arranged along the circumference of the annular pipeline, the bottoms of the mounting grooves are provided with a plurality of holes communicated with the inside of the annular pipeline, the bottoms of the mounting grooves are provided with filter cloth, and the filter cloth covers the holes; the bottom ends of the first elastic tube and the second elastic tube are communicated with the inside of the annular pipeline.
Optionally, the annular pipeline peripheral surface edge is connected with the annular plate, the annular plate laminating in the bottom surface of buoy, the annular plate can dismantle connect in the bottom surface of buoy.
Optionally, a pressing cover is attached to the outer peripheral surface of the annular pipeline, the inner side surface of the pressing cover is pressed on the filter cloth, a plurality of strip-shaped holes are formed in the part, located on the filter cloth, of the pressing cover, and the strip-shaped holes are formed along the circumference of the annular pipeline; the outer peripheral surface of annular plate is connected with annular sand grip, the outer peripheral surface of compressing tightly the cover is connected with a plurality of elastic plates, the elastic plate medial surface is provided with the draw-in groove that annular sand grip mutually supported.
Optionally, the outer peripheral surfaces of the bottoms of the first elastic tube and the second elastic tube are respectively connected with an annular elastic flange, the annular elastic flanges are attached to the top surface of the annular pipeline, the top surface of the annular pipeline is connected with two fixing rings, the two annular elastic flanges are respectively positioned in the fixing rings, the inner peripheral surface of each fixing ring is provided with an internal thread, each fixing ring is internally provided with a rotating ring, the first elastic tube penetrates through each rotating ring, the second elastic tube penetrates through each rotating ring, the outer peripheral surface of each rotating ring is provided with an external thread, each rotating ring is in threaded connection with each fixing ring, and the bottom surface of each rotating ring is tightly pressed on the top surface of each annular elastic flange; the bottom surface of the buoy is provided with a placing groove for placing the fixed ring and the rotating ring.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The reaction tank conveys the prepared CPE acidic slurry into the treatment tank, the alkali water tank conveys the calcium chloride solution into the treatment tank and stirs and adjusts Ph to be neutral, the neutral slurry (suspension) containing CPE and calcium chloride and the calcium chloride hydrochloric acid mixed solution (supernatant) are obtained after stopping stirring, and the calcium chloride hydrochloric acid mixed solution is transferred into the transfer tank; the clean water tank is used for injecting clean water into the treatment tank and cleaning neutral slurry of CPE and calcium chloride, the obtained calcium chloride is easily transferred into the distillation tower in the cleaning process, the CPE containing the clean water is obtained after the cleaning is finished, then the CPE containing the clean water is transferred into the centrifugal tank, the centrifugal tank is used for centrifuging the CPE, the centrifuged upper clean water is transferred into the temporary storage tank, and the clean water in the temporary storage tank can be used for cleaning the CPE in the treatment tank;
2. Introducing the calcium chloride and hydrochloric acid mixed solution in the transfer tank into an active carbon adsorption tank, adsorbing organic matters and partially dissolved pollutants such as VOCs in the calcium chloride and hydrochloric acid mixed solution by the active carbon adsorption tank, introducing the calcium chloride and hydrochloric acid mixed solution flowing through the active carbon adsorption tank into a membrane separation device, further removing salts and residual organic matters in the calcium chloride and hydrochloric acid mixed solution by the membrane separation device through a permeable membrane, discharging the wastewater treated by the membrane separation device into a neutralization tank, adding calcium oxide into the neutralization tank, stirring and adjusting Ph to be neutral, introducing the wastewater in the neutralization tank into a filter pressing tank, performing filter pressing on the wastewater to obtain calcium precipitate and calcium chloride solution, introducing the calcium chloride solution into a distillation tower again, discharging the calcium chloride solution into the distillation tower, distilling the calcium chloride solution by the distillation tower, and refluxing the steam discharged by the distillation tower into a clean water tank through condensation, so that water resources can be recycled, thereby reducing the waste of water resources; the calcium chloride solution in the distillation tower is concentrated, the concentrated calcium chloride solution is discharged into an alkaline water tank, and the calcium chloride can be reused;
3. When the second elastic tube extracts the calcium chloride and hydrochloric acid mixed solution, the calcium chloride and hydrochloric acid mixed solution enters the annular pipeline through the filter cloth, the filter cloth excludes suspended calcium chloride and simultaneously prevents CPE from entering the annular pipeline, and the second elastic tube only extracts the calcium chloride and hydrochloric acid mixed solution; when the first elastic tube extracts the calcium chloride solution, the calcium chloride solution enters the annular pipeline through the filter cloth, the filter cloth excludes CPE, and the first elastic tube only extracts the calcium chloride solution.
Drawings
FIG. 1 is a schematic diagram of a wastewater desalination treatment apparatus according to an embodiment of the present application;
FIG. 2 is a schematic view of the structure of a treatment tank according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a treatment tank according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of the portion A of FIG. 3;
FIG. 5 is a schematic view showing the internal structure of a treatment tank according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an exploded construction of a buoy according to an embodiment of the application;
Fig. 7 is a schematic view of the structure of the annular pipe according to the embodiment of the present application.
Reference numerals illustrate:
1. A treatment tank; 11. a mounting frame; 12. a tank body; 13. an upper end enclosure; 131. a CEP feed tube; 132. a clean water feeding pipe; 1321. a guide plate; 133. an alkaline water feed pipe; 14. a lower end enclosure; 141. a CEP discharge pipe; 15. a stirring mechanism; 151. a stirring shaft; 152. stirring paddles; 153. a driving source; 1531. a bracket; 1532. a first pulley; 1533. a second pulley; 1534. a driving motor; 1535. pi Daitiao; 154. a sleeve; 1541. a guide bar; 16. a buoy; 161. a connecting rod; 162. a slip ring; 17. a first elastic tube; 18. a second elastic tube; 19. an annular pipe; 191. a mounting groove; 192. a hole; 193. a filter cloth; 194. an annular plate; 195. a compression cover; 1951. a bar-shaped hole; 1952. an elastic plate; 196. annular raised strips; 197. an annular resilient flange; 198. a fixing ring; 199. a rotating ring; 21. a reaction tank; 22. an alkali water tank; 23. a clean water tank; 31. a centrifuge pot; 311. a temporary storage tank; 312. a drying device; 32. a distillation column; 33. a transfer pot; 41. an adsorption tank; 42. a membrane separation device; 43. a neutralization tank; 431. a storage tank; 44. a filter pressing tank; 441. and (3) a sedimentation tank.
Detailed Description
The application is described in further detail below with reference to fig. 1-7.
The embodiment of the application discloses a chlorinated polyethylene wastewater desalination treatment device. Referring to fig. 1 to 7, the desalination treatment apparatus comprises a treatment tank 1, wherein a feed inlet on the treatment tank 1 is communicated with a discharge outlet of a reaction tank 21, an alkaline water tank 22 and a clean water tank 23 through a pipeline and a pump, the reaction tank 21 is used for preparing CEP, the alkaline water tank 22 is used for storing calcium chloride solution, the clean water tank 23 is used for storing clean water, a discharge outlet on the treatment tank 1 is communicated with a feed inlet of a centrifugal tank 31, a distillation tower 32 and a transfer tank 33 through a pipeline and/or a pump, a discharge outlet of the distillation tower 32 is communicated with a feed inlet of the alkaline water tank 22 and a feed inlet of the clean water tank 23 through a pipeline and/or a pump, a discharge outlet of the centrifugal tank 31 is communicated with a feed inlet of a temporary storage tank 311 through a pipeline and/or a pump, and a discharge outlet of the temporary storage tank 311 is communicated with a pipeline between the clean water tank 23 and the treatment tank 1; the discharge port of the transfer tank 33 is communicated with the feed port of the adsorption tank 41 through a pipeline and/or a pump, the adsorption tank 41 is adsorbed through activated carbon, the discharge port of the adsorption tank 41 is communicated with the feed port of the membrane separation device 42 through a pipeline and/or a pump, the discharge port of the membrane separation device 42 is communicated with the feed port of the neutralization tank 43 through a pipeline and/or a pump, the feed port of the neutralization tank 43 is communicated with the feed port of the filter-pressing tank 44 through a pipeline and/or a pump, and the discharge port of the filter-pressing tank 44 is communicated with the feed port of the distillation tower 32 through a pipeline and/or a pump.
The reaction tank 21 conveys the prepared CPE acidic slurry into the treatment tank 1, the alkali water tank 22 conveys the calcium chloride solution into the treatment tank 1 and stirs and adjusts Ph to neutrality, the stirring is stopped to obtain neutral slurry (suspension) containing CPE and calcium chloride hydrochloric acid mixed solution (supernatant), and the calcium chloride acid mixed solution is transferred into the transfer tank 33; the clean water tank 23 injects clean water into the treatment tank 1 and cleans neutral slurry of CPE and calcium chloride, the obtained calcium chloride is easily transferred to the distillation tower 32 in the cleaning process, the CPE containing the clean water is obtained after the cleaning is finished, then the CPE containing the clean water is transferred to the centrifugal tank 31, the centrifugal tank 31 is used for centrifuging the CPE, the upper clean water after centrifugation is transferred to the temporary storage tank 311, and the clean water in the temporary storage tank 311 can be used for cleaning the CPE in the treatment tank 1.
Introducing the calcium chloride and hydrochloric acid mixed solution in the transfer tank 33 into an activated carbon adsorption tank 41, adsorbing organic matters and partially dissolved pollutants such as VOCs in the calcium chloride and hydrochloric acid mixed solution by the activated carbon adsorption tank 41, introducing the calcium chloride and hydrochloric acid mixed solution flowing through the activated carbon adsorption tank 41 into a membrane separation device 42, further removing salts and residual organic matters in the calcium chloride and hydrochloric acid mixed solution by the membrane separation device 42 through a permeable membrane, then discharging the wastewater treated by the membrane separation device 42 into a neutralization tank 43, adding calcium oxide into the neutralization tank 43, stirring and adjusting Ph to be neutral, introducing the wastewater in the neutralization tank 43 into a filter pressing tank 44, performing filter pressing on the wastewater to obtain calcium precipitate and calcium chloride solution, introducing the calcium chloride solution into a distillation tower 32 again, wherein the concentration of the calcium chloride solution in the distillation tower 32 is lower, distilling the calcium chloride solution by the distillation tower 32, and condensing and refluxing the steam discharged by the distillation tower 32 into a clean water tank 23, so that water resources can be recycled, thereby reducing the waste of water resources; the calcium chloride solution in the distillation column 32 is concentrated, and the concentrated calcium chloride solution is discharged into the alkaline water tank 22, so that the calcium chloride can be reused.
A drying device 312 is arranged on one side of the centrifugal tank 31, and CEP at the lower layer of the centrifugal tank 31 is conveyed into the drying device 312 for drying; a storage tank 431 is arranged on one side of the neutralization tank 43, calcium oxide is stored in the storage tank 431, and the storage tank 431 conveys the calcium oxide into the neutralization tank 43; one side of the filter pressing tank 44 is provided with a sedimentation tank 441, and the sedimentation tank 441 is used for placing calcareous sediment.
The treatment tank 1 comprises a mounting frame 11, a tank body 12, an upper sealing head 13, a lower sealing head 14, a stirring mechanism 15 and a buoy 16, wherein the tank body 12 is arranged in the mounting frame 11, the upper sealing head 13 is connected to the top end face of the tank body 12, the lower sealing head 14 is connected to the bottom end face of the tank body 12, the stirring mechanism 15 is arranged in the tank body 12, and the stirring mechanism 15 is used for stirring slurry; the buoy 16 is arranged in the tank body 12, a first elastic tube 17 and a second elastic tube 18 are arranged on the top surface of the buoy 16, the bottom ends of the first elastic tube 17 and the second elastic tube 18 penetrate through the bottom surface of the buoy 16, the top ends of the first elastic tube 17 and the second elastic tube 18 penetrate through the top surface of the upper seal head 13 and are fixed on the surface of the upper seal head 13, the top ends of the first elastic tube 17 are communicated with a feed inlet of the distillation tower 32 through a pipeline, the first elastic tube 17 is used for extracting calcium chloride solution, the top ends of the second elastic tube 18 are communicated with a feed inlet of the transfer tank 33 through a pipeline, and the second elastic tube 18 is used for extracting calcium chloride acid mixed solution; the top surface of the upper seal head 13 is communicated with a CEP feed pipe 131, a clear water feed pipe 132 and an alkaline water feed pipe 133, the CEP feed pipe 131 is communicated with a discharge port of the reaction tank 21 through a pipeline, the alkaline water feed pipe 133 is communicated with a discharge port of the alkaline water tank 22 through a pipeline, and the clear water feed pipe 132 is communicated with a discharge port of the clear water tank 23 through a pipeline; the bottom surface of the lower sealing head 14 is communicated with a CEP discharging pipe 141, and the CEP discharging pipe 141 is communicated with a feeding hole of the centrifugal tank 31 through a pipeline.
The reaction tank 21 conveys CPE acid slurry into the treatment tank 1 through a CEP feed pipe 131, the stirring mechanism 15 stirs the CPE acid slurry, the alkaline water tank 22 conveys calcium chloride into the treatment tank 1 through an alkaline water feed pipe 133, the stirring mechanism 15 stirs the mixed slurry until the mixed liquid becomes neutral, the stirring mechanism 15 stops stirring, neutral slurry (suspension) containing CPE and calcium chloride hydrochloric acid mixed liquid (supernatant) are obtained after stopping stirring, the buoy 16 floats on the surface of the mixed slurry, the second elastic tube 18 extracts the calcium chloride hydrochloric acid mixed liquid into the transfer tank 33, and the extraction of the second elastic tube 18 is stopped after the calcium chloride hydrochloric acid mixed liquid is extracted; the clean water tank 23 injects clean water into the treatment tank 1 through the clean water feed pipe 132, the stirring mechanism 15 stirs the slurry in the reaction tank 21 again, the clean water washes the neutral slurry of CPE and calcium chloride, then the first elastic pipe 17 pumps the calcium chloride solution into the distillation tower 32 until the calcium chloride solution on the CPE is washed completely, stirring is stopped, and then the CPE containing the clean water is discharged into the centrifugal tank 31 through the CPE discharge pipe.
The stirring mechanism 15 includes a stirring shaft 151, a stirring paddle 152, and a driving source 153, and the driving source 153 includes a support 1531, a first pulley 1532, a second pulley 1533, a driving motor 1534, and a belt strip 1535; the stirring shaft 151 is rotatably connected to the middle position of the upper seal head 13, the bottom end of the stirring shaft 151 extends to the lower seal head 14, the top end of the stirring shaft 151 extends out of the upper seal head 13, the stirring paddle 152 is arranged at the bottom end of the stirring shaft 151, and the stirring paddle 152 is used for stirring CPE; the support 1531 is mounted on the outer surface of the upper seal head 13, the driving motor 1534 is mounted on the support 1531, the first belt pulley 1532 is coaxially connected to the output shaft of the driving motor 1534, the second belt pulley 1533 is coaxially connected to the top end of the stirring shaft 151, and the belt strip 1535 is wound around the first belt pulley 1532 and the second belt pulley 1533.
When the CPE needs to be stirred, the driving motor 1534 drives the first pulley 1532 to rotate, the first pulley 1532 drives the second pulley 1533 to rotate through the belt strip 1535, the second pulley 1533 drives the stirring shaft 151 to rotate, the stirring shaft 151 drives the stirring paddle 152 to rotate, and the stirring paddle 152 stirs the CPE.
The buoy 16 is annular, the buoy 16 is sleeved on the outer peripheral surface of the stirring shaft 151, the first elastic tube 17 and the second elastic tube 18 are spirally wound around the axis of the stirring shaft 151 as the center, and the first elastic tube 17 and the second elastic tube 18 are centrally symmetrical with respect to the axis of the stirring shaft 151; the spiral first elastic tube 17 and the second elastic tube 18 are alternately wound, so that the height of the buoy 16 can be shortened and extended.
The outer peripheral surface of the stirring shaft 151 is sleeved with a sleeve 154, the sleeve 154 is connected to the inner surface of the upper seal head 13, the inner peripheral surface of the buoy 16 is connected with two symmetrically arranged connecting rods 161, a sliding ring 162 is connected between the two connecting rods 161, the sliding ring 162 slides on the outer peripheral surface of the sleeve 154, the outer peripheral surface of the sleeve 154 is connected with two symmetrical guide strips 1541, the guide strips 1541 are arranged along the axial direction of the stirring shaft 151, and the inner peripheral surface of the sliding ring 162 is provided with guide grooves matched with the two guide strips 1541; when the liquid level in the treatment tank 1 is changed, the float 16 slides on the guide strip 1541 through the slip ring 162, and when the stirring mechanism 15 stirs the slurry, the float 16 is not rotated together with the slurry under the restriction of the guide strip 1541, and the first elastic tube 17 and the second elastic tube 18 are not wound.
The bottom surface of the buoy 16 is connected with an annular pipeline 19, the annular pipeline 19 is sleeved outside the stirring shaft 151, the cross section of the annular pipeline 19 is semicircular, and the plane side of the annular pipeline 19 is attached to the bottom surface of the buoy 16; the circular arc surface of the annular pipeline 19 is provided with two mounting grooves 191, the two mounting grooves 191 are symmetrically arranged about the circle center of the annular pipeline 19, the mounting grooves 191 are circular arc grooves arranged along the circumference of the annular pipeline 19, the bottom of each mounting groove 191 is provided with a plurality of holes 192 communicated with the inside of the annular pipeline 19, the bottom of each mounting groove 191 is provided with a filter cloth 193, and the holes 192 are covered by the filter cloth 193; the bottom ends of the first elastic tube 17 and the second elastic tube 18 are communicated with the inside of the annular pipeline 19.
When the second elastic tube 18 extracts the calcium chloride and hydrochloric acid mixed solution, the calcium chloride and hydrochloric acid mixed solution enters the annular pipeline 19 through the filter cloth 193, the filter cloth 193 excludes suspended calcium chloride and simultaneously prevents CPE from entering the annular pipeline 19, and the second elastic tube 18 extracts only the calcium chloride and hydrochloric acid mixed solution; when the first elastic tube 17 draws the calcium chloride solution, the calcium chloride solution enters the annular pipe 19 through the filter cloth 193, the filter cloth 193 excludes the CPE, and the first elastic tube 17 draws only the calcium chloride solution.
The peripheral edge of the annular pipeline 19 is connected with an annular plate 194, the annular plate 194 is attached to the bottom surface of the buoy 16, the annular plate 194 is connected to the bottom surface of the buoy 16 through screws, and the annular pipeline 19 can be disassembled, assembled and maintained through the annular plate 194.
The outer peripheral surface of the annular pipeline 19 is adhered with a pressing cover 195, the inner side surface of the pressing cover 195 is pressed on the filter cloth 193, a plurality of strip-shaped holes 1951 are formed in the part of the pressing cover 195, which is positioned on the filter cloth 193, of the pressing cover 195, and the strip-shaped holes 1951 are circumferentially arranged along the annular pipeline 19; the outer peripheral surface of the annular plate 194 is connected with an annular raised line 196, the outer peripheral surface of the pressing cover 195 is connected with four elastic plates 1952, the four elastic plates 1952 are arranged around the annular pipeline 19 in a circle, and the inner side surface of the elastic plates 1952 is provided with clamping grooves in which the annular raised line 196 is matched with each other.
The filter cloth 193 is compressed by the compression cover 195, and when the filter cloth 193 is seriously blocked or damaged, the compression cover 195 can be detached to replace or clean the filter cloth 193; when the cover 195 is fastened by the elastic plate 1952 and the annular protruding strips 196, the elastic plate 1952 is lifted up to release the fastening of the elastic plate 1952 and the annular protruding strips 196, so that the cover 195 can be quickly assembled and disassembled.
The outer peripheral surfaces of the bottoms of the first elastic tube 17 and the second elastic tube 18 are respectively connected with an annular elastic flange 197, the annular elastic flanges 197 are attached to the top surface of the annular pipeline 19, the top surface of the annular pipeline 19 is connected with two fixing rings 198, the two annular elastic flanges 197 are respectively positioned in the fixing rings 198, the inner peripheral surface of each fixing ring 198 is provided with internal threads, a rotating ring 199 is arranged in each fixing ring 198, the first elastic tube 17 penetrates through the corresponding rotating ring 199, the second elastic tube 18 penetrates through the corresponding rotating ring 199, the outer peripheral surface of the corresponding rotating ring 199 is provided with external threads, the rotating ring 199 is in threaded connection with the corresponding fixing ring 198, and the bottom surface of the corresponding rotating ring 199 is tightly pressed on the top surface of the corresponding annular elastic flange 197; the bottom surface of the float 16 is provided with a placement groove for placing the stationary ring 198 and the rotating ring 199.
When the first elastic tube 17 and the second elastic tube 18 are installed, the bottom ends of the first elastic tube 17 and the second elastic tube 18 pass through the buoy 16, the annular elastic flange 197 is extruded and deformed, then pass through the buoy 16, the first elastic tube 17 and the second elastic tube 18 pass through the rotating ring 199, the annular elastic flange 197 is extruded and deformed, then pass through the rotating ring 199, the annular elastic flange 197 is placed in the fixed ring 198, then the rotating ring 199 is connected in the fixed ring 198, and when the rotating ring 199 is pressed on the top surface of the annular elastic flange 197 on the annular pipeline 19, the first elastic tube 17 and the second elastic tube 18 are fixed, and the first elastic tube 17, the second elastic tube 18 and the quick installation can be realized.
The bottom end of the clean water feeding pipe 132 is connected with a side edge of the guide plate 1321, and the side edge of the guide plate 1321 connected with the bottom end of the clean water feeding pipe 132 is positioned in the middle of the clean water feeding pipe 132; the other side of the guide plate 1321 is disposed obliquely downward and toward the first elastic tube 17 and the second elastic tube 18; when the clean water tank 23 is filled with clean water into the treatment tank 1 through the clean water feed pipe 132, the clean water flows to the first elastic pipe 17 and the second elastic pipe 18 through the guide plate 1321, and the clean water can clean the first elastic pipe 17 and the second elastic pipe 18.
The embodiment of the application relates to an implementation principle of a chlorinated polyethylene wastewater desalination treatment device, which comprises the following steps: the reaction tank 21 conveys the prepared CPE acidic slurry into the treatment tank 1, the alkali water tank 22 conveys the calcium chloride solution into the treatment tank 1 and stirs and adjusts Ph to neutrality, the stirring is stopped to obtain neutral slurry (suspension) containing CPE and calcium chloride hydrochloric acid mixed solution (supernatant), and the calcium chloride acid mixed solution is transferred into the transfer tank 33; the clean water tank 23 injects clean water into the treatment tank 1 and cleans neutral slurry of CPE and calcium chloride, the obtained calcium chloride is easily transferred to the distillation tower 32 in the cleaning process, the CPE containing the clean water is obtained after the cleaning is finished, then the CPE containing the clean water is transferred to the centrifugal tank 31, the centrifugal tank 31 is used for centrifuging the CPE, the upper clean water after centrifugation is transferred to the temporary storage tank 311, and the clean water in the temporary storage tank 311 can be used for cleaning the CPE in the treatment tank 1.
Introducing the calcium chloride and hydrochloric acid mixed solution in the transfer tank 33 into an activated carbon adsorption tank 41, adsorbing organic matters and partially dissolved pollutants such as VOCs in the calcium chloride and hydrochloric acid mixed solution by the activated carbon adsorption tank 41, introducing the calcium chloride and hydrochloric acid mixed solution flowing through the activated carbon adsorption tank 41 into a membrane separation device 42, further removing salts and residual organic matters in the calcium chloride and hydrochloric acid mixed solution by the membrane separation device 42 through a permeable membrane, then discharging the wastewater treated by the membrane separation device 42 into a neutralization tank 43, adding calcium oxide into the neutralization tank 43, stirring and adjusting Ph to be neutral, introducing the wastewater in the neutralization tank 43 into a filter pressing tank 44, performing filter pressing on the wastewater to obtain calcium precipitate and calcium chloride solution, introducing the calcium chloride solution into a distillation tower 32 again, wherein the concentration of the calcium chloride solution in the distillation tower 32 is lower, distilling the calcium chloride solution by the distillation tower 32, and condensing and refluxing the steam discharged by the distillation tower 32 into a clean water tank 23, so that water resources can be recycled, thereby reducing the waste of water resources; the calcium chloride solution in the distillation column 32 is concentrated, and the concentrated calcium chloride solution is discharged into the alkaline water tank 22, so that the calcium chloride can be reused.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (1)
1. A chlorinated polyethylene wastewater desalination treatment device is characterized in that: the device comprises a treatment tank (1), wherein a feed inlet on the treatment tank (1) is communicated with a feed inlet of a reaction tank (21), an alkali water tank (22) and a discharge outlet of a clean water tank (23), the feed inlet of a centrifugal tank (31), a distillation tower (32) and a transfer tank (33) are communicated with the feed inlet of the alkali water tank (22) and the feed inlet of the clean water tank (23), the discharge outlet of the centrifugal tank (31) is communicated with the feed inlet of a temporary storage tank (311), and the discharge outlet of the temporary storage tank (311) is communicated with a pipeline between the clean water tank (23) and the treatment tank (1); the discharge port of the transfer tank (33) is communicated with the feed port of the adsorption tank (41), the discharge port of the adsorption tank (41) is communicated with the feed port of the membrane separation device (42), the discharge port of the membrane separation device (42) is communicated with the feed port of the neutralization tank (43), the feed port of the neutralization tank (43) is communicated with the feed port of the filter pressing tank (44), and the discharge port of the filter pressing tank (44) is communicated with the feed port of the distillation column (32);
A drying device (312) is arranged at one side of the centrifugal tank (31), and CEP at the lower layer of the centrifugal tank (31) is conveyed into the drying device (312) for drying; a storage tank (431) is arranged at one side of the neutralization tank (43), and an alkaline substance is stored in the storage tank (431); a sedimentation tank (441) is arranged at one side of the filter pressing tank (44), and the sedimentation tank (441) is used for placing sediment;
The treatment tank (1) comprises a mounting frame (11), a tank body (12), an upper sealing head (13), a lower sealing head (14), a stirring mechanism (15) and a buoy (16), wherein the tank body (12) is arranged in the mounting frame (11), the upper sealing head (13) is connected to the top end face of the tank body (12), the lower sealing head (14) is connected to the bottom end face of the tank body (12), the stirring mechanism (15) is arranged in the tank body (12), and the stirring mechanism (15) is used for stirring slurry; the buoy (16) is arranged in the tank body (12), a first elastic tube (17) and a second elastic tube (18) are arranged on the top surface of the buoy (16), the bottom ends of the first elastic tube (17) and the second elastic tube (18) penetrate through the bottom surface of the buoy (16), the top ends of the first elastic tube (17) and the second elastic tube (18) penetrate through the top surface of the upper seal head (13) and are fixed on the surface of the upper seal head (13), the top end of the first elastic tube (17) is communicated with a feed inlet of the distillation column (32) through a pipeline, and the top end of the second elastic tube (18) is communicated with a feed inlet of the transfer tank (33) through a pipeline; the top surface of the upper seal head (13) is communicated with a CEP feeding pipe (131), a clear water feeding pipe (132) and an alkaline water feeding pipe (133), the CEP feeding pipe (131) is communicated with a discharge port of the reaction tank (21) through a pipeline, the alkaline water feeding pipe (133) is communicated with a discharge port of the alkaline water tank (22) through a pipeline, and the clear water feeding pipe (132) is communicated with a discharge port of the clear water tank (23) through a pipeline; the bottom surface of the lower sealing head (14) is communicated with a CEP discharging pipe (141), and the CEP discharging pipe (141) is communicated with a feeding port of the centrifugal tank (31) through a pipeline;
The stirring mechanism (15) comprises a stirring shaft (151), a stirring paddle (152) and a driving source (153), the stirring shaft (151) is rotatably connected to the middle position of the upper end socket (13), the bottom end of the stirring shaft (151) extends to the lower end socket (14), the top end of the stirring shaft (151) extends out of the upper end socket (13), the stirring paddle (152) is arranged at the bottom end of the stirring shaft (151), and the stirring paddle (152) is used for stirring CPE; the driving source (153) is arranged on the surface of the upper sealing head (13), and the driving source (153) is used for driving the stirring shaft (151) to rotate;
The buoy (16) is in a circular ring shape, the buoy (16) is sleeved on the outer peripheral surface of the stirring shaft (151), the first elastic tube (17) and the second elastic tube (18) are spirally wound around the axis of the stirring shaft (151) as the center, and the first elastic tube (17) and the second elastic tube (18) are in central symmetry relative to the axis of the stirring shaft (151);
the stirring shaft (151) is characterized in that a sleeve (154) is sleeved on the outer circumferential surface of the stirring shaft (151), the sleeve (154) is connected to the inner surface of the upper sealing head (13), two symmetrically arranged connecting rods (161) are connected to the inner circumferential surface of the buoy (16), a slip ring (162) is connected between the two connecting rods (161), the slip ring (162) slides on the outer circumferential surface of the sleeve (154), two symmetrical guide strips (1541) are connected to the outer circumferential surface of the sleeve (154), the guide strips (1541) are arranged along the axial direction of the stirring shaft (151), and guide grooves matched with the two guide strips (1541) are formed in the inner circumferential surface of the slip ring (162);
The bottom surface of the buoy (16) is connected with an annular pipeline (19), the annular pipeline (19) is sleeved outside the stirring shaft (151), the cross section of the annular pipeline (19) is semicircular, and the plane side of the annular pipeline (19) is attached to the bottom surface of the buoy (16); two mounting grooves (191) are formed in the arc surface of the annular pipeline (19), the two mounting grooves (191) are symmetrically arranged about the center of the annular pipeline (19), the mounting grooves (191) are arc grooves formed in the circumference of the annular pipeline (19), a plurality of holes (192) communicated with the inside of the annular pipeline (19) are formed in the bottom of each mounting groove (191), filter cloth (193) is arranged at the bottom of each mounting groove (191), and the holes (192) are covered by the filter cloth (193); the bottom ends of the first elastic tube (17) and the second elastic tube (18) are communicated with the inside of the annular pipeline (19);
the circumferential edge of the annular pipeline (19) is connected with an annular plate (194), the annular plate (194) is attached to the bottom surface of the buoy (16), and the annular plate (194) is detachably connected to the bottom surface of the buoy (16);
The outer peripheral surface of the annular pipeline (19) is attached with a pressing cover (195), the inner side surface of the pressing cover (195) is pressed on the filter cloth (193), a plurality of strip-shaped holes (1951) are formed in the part, located on the filter cloth (193), of the pressing cover (195), and the strip-shaped holes (1951) are formed along the circumference of the annular pipeline (19); the outer peripheral surface of the annular plate (194) is connected with an annular raised line (196), the outer peripheral surface of the pressing cover (195) is connected with a plurality of elastic plates (1952), and the inner side surface of each elastic plate (1952) is provided with a clamping groove in which the annular raised line (196) is mutually matched;
The bottom outer peripheral surfaces of the first elastic tube (17) and the second elastic tube (18) are respectively connected with an annular elastic flange (120), the annular elastic flanges (120) are attached to the top surface of the annular pipeline (19), the top surface of the annular pipeline (19) is connected with two fixing rings (121), the two annular elastic flanges (120) are respectively positioned in the fixing rings (121), the inner peripheral surfaces of the fixing rings (121) are provided with internal threads, the fixing rings (121) are internally provided with rotating rings (122), the first elastic tube (17) penetrates through the rotating rings (122), the second elastic tube (18) penetrates through the rotating rings (122), the outer peripheral surfaces of the rotating rings (122) are provided with external threads, the rotating rings (122) are in threaded connection with the fixing rings (121), and the bottom surfaces of the rotating rings (122) are tightly pressed on the top surfaces of the annular elastic flanges (120). The bottom surface of the buoy (16) is provided with a placing groove for placing the fixed ring (121) and the rotating ring (122).
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