CN211770693U - High-efficient coagulating sedimentation device of waste water - Google Patents
High-efficient coagulating sedimentation device of waste water Download PDFInfo
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- CN211770693U CN211770693U CN202020013309.5U CN202020013309U CN211770693U CN 211770693 U CN211770693 U CN 211770693U CN 202020013309 U CN202020013309 U CN 202020013309U CN 211770693 U CN211770693 U CN 211770693U
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Abstract
The utility model discloses a high-efficiency waste water coagulating sedimentation device, which comprises a medicament mixing system and a coagulating sedimentation system, wherein the medicament mixing system comprises a waste water collecting tank, the waste water collecting tank is connected with a waste water inlet pipe and a mixed liquid outlet pipe, the mixed liquid outlet pipe is connected with the inlet of a mixer, the waste water inlet pipe is communicated with a liquid caustic soda input pipe, the mixed liquid outlet pipe is communicated with a PAC input pipe, and the inlet of the mixer is also communicated with a PAM input pipe; the outlet of the mixer is connected with a water inlet pipe of a settling tank of the coagulating sedimentation system. This coagulating sedimentation device can the automatic reagent feeding and guaranteed the intensive mixing of medicament and waste water.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, especially, high-efficient coagulating sedimentation device of waste water.
Background
The waste water produced in the production process of the ion exchange resin mainly comes from cleaning waste water after monomer polymerization and acidic waste water after acid cleaning after sulfonation or hydrolysis reaction, the main pollutants are aromatic hydrocarbon and derivatives thereof, such as styrene, acrylonitrile, divinylbenzene, pore-foaming agent and other auxiliary agents, the waste water containing the substances has stable physical and chemical properties and is difficult to degrade by microorganisms, meanwhile, the polymerization reaction cleaning wastewater often has residual dispersing agents such as cellulose, polyvinyl alcohol and the like, and also has certain influence on the flux of the MBR membrane, the production wastewater of the common ion exchange resin firstly removes a certain amount of pollutants through the drug-adding coagulation sedimentation, the supernatant fluid enters a biochemical system, the pollutants are further degraded by using microorganisms, and the sludge after coagulation and sedimentation is concentrated and filter-pressed and sent to a qualification unit for disposal.
Therefore, a high-efficiency coagulation sedimentation device for fully mixing wastewater, which can automatically add medicine and ensure the medicine and the wastewater, needs to be designed.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, this application has provided a high-efficient coagulating sedimentation device of waste water.
The utility model discloses the technical scheme who adopts as follows:
the efficient waste water coagulating sedimentation device comprises a medicament mixing system and a coagulating sedimentation system, wherein the medicament mixing system comprises a waste water collecting tank, the waste water collecting tank is connected with a waste water inlet pipe and a mixed liquid outlet pipe, the mixed liquid outlet pipe is connected with an inlet of a mixer, the waste water inlet pipe is communicated with a liquid alkali input pipe, the mixed liquid outlet pipe is communicated with a polyaluminium chloride (PAC) input pipe, and the inlet of the mixer is also communicated with a Polyacrylamide (PAM) input pipe; the outlet of the mixer is connected with a water inlet pipe of a settling tank of the coagulating sedimentation system.
Further, a lifting pump is arranged on the mixed liquid outlet pipe, and the waste water in the waste water collecting tank is lifted into the mixer through the lifting pump; the mixed liquid outlet pipe is communicated with the liquid caustic soda input pipe at the front section of the inlet of the lift pump, and liquid caustic soda and wastewater can be fully mixed by utilizing an impeller of the lift pump.
Further, a liquid caustic soda metering pump, a PAC metering pump and a PAM metering pump are respectively arranged on the liquid caustic soda input pipe, the PAC input pipe and the PAM input pipe;
further, a PH sensor is arranged in the wastewater collection tank;
in the above scheme, a spiral plate is installed in the mixer.
Further, the diameter of the mixer is 4-5 times of the outlet pipeline of the lifting pump.
The utility model has the advantages that:
1. the utility model discloses a medicament hybrid system adds the medicament in proper order to waste water through dividing the three stage, can guarantee automatic reagent feeding continuous operation effectively, shortens operating duration greatly and reduces intensity of labour.
2. The utility model discloses a set up the position that three stage medicament added among the medicament hybrid system, can fully guarantee the complete mixing of medicament and waste water.
Drawings
FIG. 1 is a schematic structural view of a chemical mixing system of the high-efficiency waste water coagulating sedimentation device of the utility model;
FIG. 2 is a schematic structural view of a coagulating sedimentation system of the wastewater high-efficiency coagulating sedimentation device of the utility model;
in the figure, 1, a waste water collecting tank; 2. a wastewater inlet pipe; 3. a lift pump; 4. a mixer; 5. a liquid caustic soda metering pump; 6. a PAC metering pump; 7. a PAM metering pump; 8. a settling tank; 9. a water inlet pipe of the settling tank; 10. a flow stabilizing cylinder; 11. a transmission mechanism; 12. a motor; 13. a grid plate; 14. a squeegee; 15. a sludge collection tank; 16. a sludge discharge pipe; 17. an overflow trough; 18. a drain pipe; 19. and a pH sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 invention.
The utility model relates to a high-efficiency waste water coagulating sedimentation device, which comprises a medicament mixing system and a coagulating sedimentation system, wherein the medicament mixing system comprises a waste water collecting tank 1 as shown in figure 1, the waste water collecting tank adopts an underground steel concrete structure and is subjected to antiseptic treatment; waste water inlet tube 2 inserts in waste water collecting pit 1, before waste water inlet tube 2 got into waste water collecting pit 1, waste water inlet tube 2 and liquid caustic soda input tube intercommunication, liquid caustic soda input tube connection liquid caustic soda measuring pump 5, through liquid caustic soda measuring pump 5 addition liquid caustic soda, according to the pH value in waste water collecting pit 1, the stable pH value of control dosing is between 9-11.
The waste water collecting tank 1 is also connected with a mixed liquid outlet pipe, the mixed liquid outlet pipe is connected with the inlet of the lifting pump 3, and the mixed liquid outlet pipe at the outlet of the lifting pump 3 is connected with the inlet of the mixer 4; the mixed liquid outlet pipe before the inlet of the lift pump 3 is communicated with the PAC input pipe, the PAC input pipe is connected with the PAC metering pump 6, and PAC and wastewater pumped by the PAC metering pump 6 can be fully mixed under the shearing action of the impeller of the lift pump 3.
The inlet of the mixer 4 is also communicated with a PAM input pipe, the PAM input pipe is connected with a PAM metering pump 7, and PAM is input into the mixer 4 through the PAM metering pump 7; the outlet of the mixer 4 is connected with a water inlet pipe 9 of a precipitation tank of the coagulation precipitation system, and the wastewater fully mixed with PAM in the mixer 4 is input into the coagulation precipitation system.
The coagulating sedimentation system comprises a sedimentation tank 8, the sedimentation tank 8 is coated with anticorrosive glue, a sludge collection groove 15 is formed in the bottom of the sedimentation tank 8, the sludge collection groove 15 is connected with a sludge discharge pipe 16, a transmission mechanism 11 is vertically arranged in the middle of the sedimentation tank 8, the top of the transmission mechanism 11 is connected with a motor 12, a scraping plate 14 is arranged at the bottom of the transmission mechanism 11, and a plurality of vertical grid plates 13 are uniformly arranged on the scraping plate 14; the upper end of the transmission mechanism 11 is sleeved with a steady flow cylinder 10, and the steady flow cylinder 10 is communicated with a water inlet pipe 9 of the sedimentation tank.
For a more clear explanation of the structure of the device, the working process of the device will be further explained below:
wastewater generated in the production process of the ion exchange resin flows into a wastewater collecting tank 1 through a wastewater inlet pipe 2, and a PH sensor 19 is arranged in the wastewater collecting tank 1; liquid caustic soda is added through a liquid caustic soda metering pump 5 according to requirements, and the liquid caustic soda and the wastewater are input into a wastewater collection pool 1 together, so that the pH value of the wastewater is adjusted to be 9-11.
Waste water after waste water collecting tank 1 mixes promotes through the elevator pump 3 of tetrafluoro material, through PAC measuring pump 6 before getting into elevator pump 3, adds PAC in the mixed liquid outlet pipe according to flow 1-2% of pump, utilizes elevator pump 3's impeller shearing force to make PAC and waste water fully mix.
The outlet of the pump of the lift pump 3 is connected with a mixer 4, and the diameter of the mixer 4 is 4-5 times of that of the water outlet pipe of the lift pump 3; the lower part of the mixer 4 is connected with a PAM input pipe, 1-2 thousandth of PAM solution is added according to 1-2% of the flow of the wastewater through a PAM metering pump 7, and a spiral plate is arranged in the mixer 4, so that the wastewater and the medicament can be fully mixed in the rising process.
The outlet of the high-efficiency mixer 4 is connected to the steady flow cylinder 4 of the settling tank 8 through a settling tank water inlet pipe 9, and the wastewater uniformly mixed by the medicament mixing system enters the settling tank 8 through the settling tank water inlet pipe 9. The wastewater added with the medicament stably enters the settling tank 8 through the flow stabilizing cylinder 4, the mixed sample quickly forms mud-water separation, the sludge with large specific gravity is quickly settled to the bottom of the settling tank 8 due to the specific gravity difference between the sludge and the water, a small amount of sludge which is not completely settled in the upward flow process of the wastewater can freely fall along the honeycomb-shaped inclined tube filler, and the sludge settled in the wastewater slowly rotates through the transmission mechanism 11 and the mud scraping plate 14. The rotating speed of the transmission mechanism 11 is controlled to be 2-3r/min, sludge at the bottom of the tank is scraped into a sludge collecting groove 15 through a scraper 14, and the sludge is further concentrated and then is pumped to a filter press by a diaphragm pump for filter pressing.
The utility model discloses a medicament hybrid system can ensure the automatic reagent feeding continuous operation, stabilizes the operational mode up to standard. Sludge at the bottom of a settling tank of the coagulating sedimentation system is scraped into a sludge collecting tank 10 through a transmission mechanism 5 and a connected scraper 9, and a sludge discharge pipeline is connected with a diaphragm pump and then is conveyed to a sludge compression device for filter pressing and drying. Thereby realizing the automatic dosing continuous operation of the wastewater and stabilizing the operation mode of standard discharge.
The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (7)
1. The efficient waste water coagulating sedimentation device is characterized by comprising a medicament mixing system and a coagulating sedimentation system, wherein the medicament mixing system comprises a waste water collecting tank (1), the waste water collecting tank (1) is connected with a waste water inlet pipe (2) and a mixed liquid outlet pipe, the mixed liquid outlet pipe is connected with an inlet of a mixer (4), the waste water inlet pipe (2) is communicated with a liquid caustic soda input pipe, the mixed liquid outlet pipe is communicated with a PAC input pipe, and the inlet of the mixer (4) is also communicated with a PAM input pipe; the outlet of the mixer (4) is connected with a water inlet pipe (9) of a settling tank of a coagulating sedimentation system.
2. The efficient coagulating sedimentation device for wastewater as claimed in claim 1, wherein the mixed liquor outlet pipe is provided with a lift pump (3), and wastewater in the wastewater collection tank (1) is lifted to the mixer (4) through the lift pump (3).
3. The efficient coagulating sedimentation device for wastewater as claimed in claim 2, wherein the mixed liquor outlet pipe is communicated with the liquid caustic soda input pipe at the front section of the inlet of the lift pump (3), and the liquid caustic soda and the wastewater can be fully mixed by using the impeller of the lift pump (3).
4. The efficient coagulating sedimentation device for wastewater as claimed in claim 3, wherein the liquid caustic soda input pipe, the PAC input pipe and the PAM input pipe are respectively provided with a liquid caustic soda metering pump (5), a PAC metering pump (6) and a PAM metering pump (7).
5. The high-efficiency coagulation sedimentation device for wastewater as claimed in claim 4, wherein a pH sensor (19) is arranged in the wastewater collection tank (1).
6. The high efficiency coagulating sedimentation device for wastewater according to claim 1, wherein a spiral plate is installed in the mixer (4).
7. The high efficiency coagulating sedimentation device for wastewater according to claim 2, wherein the diameter of the mixer (4) is 4-5 times of the outlet pipe of the lift pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020013309.5U CN211770693U (en) | 2020-01-03 | 2020-01-03 | High-efficient coagulating sedimentation device of waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020013309.5U CN211770693U (en) | 2020-01-03 | 2020-01-03 | High-efficient coagulating sedimentation device of waste water |
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| Publication Number | Publication Date |
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| CN211770693U true CN211770693U (en) | 2020-10-27 |
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| CN202020013309.5U Active CN211770693U (en) | 2020-01-03 | 2020-01-03 | High-efficient coagulating sedimentation device of waste water |
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2020
- 2020-01-03 CN CN202020013309.5U patent/CN211770693U/en active Active
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