CN210048584U - Advanced treatment device for high-fluorine wastewater - Google Patents
Advanced treatment device for high-fluorine wastewater Download PDFInfo
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- CN210048584U CN210048584U CN201920567122.7U CN201920567122U CN210048584U CN 210048584 U CN210048584 U CN 210048584U CN 201920567122 U CN201920567122 U CN 201920567122U CN 210048584 U CN210048584 U CN 210048584U
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- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 66
- 239000011737 fluorine Substances 0.000 title claims abstract description 66
- 239000002351 wastewater Substances 0.000 title claims abstract description 64
- 238000004062 sedimentation Methods 0.000 claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 89
- 238000006243 chemical reaction Methods 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 77
- 238000003756 stirring Methods 0.000 claims abstract description 29
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003814 drug Substances 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 239000010802 sludge Substances 0.000 claims description 54
- 239000002253 acid Substances 0.000 claims description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 13
- 239000006228 supernatant Substances 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 9
- 229910001634 calcium fluoride Inorganic materials 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000006115 defluorination reaction Methods 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a high fluorine advanced waste treatment device, the device include reaction unit and subside the device, and reaction unit is used for stirring high fluorine waste water and reaction medicament, and the abundant reaction subsides the device be used for with the high fluorine waste water of exhaust abundant reaction subsides among the reaction unit to qualified water and the mud sediment after will subsiding are got rid of respectively. The liquid outlet of the reaction device is connected with the water inlet of the sedimentation device through a pipeline. The device has reaction safety, abundant, and little to the environmental impact, the fast characteristics of settling velocity, the convenient quantity of required acidizing fluid of control reaction, alkali lye, reaction medicament, high fluorine waste water to and reaction temperature and time, fluoride in the better elimination high fluorine waste water improves high fluorine waste water treatment speed, has reduced fluorine content in the waste water.
Description
Technical Field
The utility model relates to a nuclear industry waste water treatment technical field, concretely relates to high fluorine advanced waste treatment device.
Background
A large amount of high-fluorine wastewater is generated in the production process of nuclear fuel elements, lime is mainly added for defluorination at present, and the fluorine content in the wastewater is about 100-2000 mg/L after defluorination treatment. With the increasing environmental requirements, the discharge concentration of the fluoride is strictly limited, and the first-level discharge standard in the Integrated wastewater discharge Standard (GB 8978-.
In addition, calcium fluoride formed in the existing lime defluorination method has small particle size and poor settling property, can not effectively remove fluoride and is an important factor for restricting the standard discharge of waste water. In order to improve the defluorination efficiency of the original lime method and enhance the sedimentation performance of particles in the wastewater, the process equipment for treating the original wastewater needs to be improved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a high fluorine advanced wastewater treatment device, this high fluorine advanced wastewater treatment device has can reach the standard and discharge, deposit efficient, the reliable advantage of simple process.
The utility model discloses a realize through following technical scheme:
the utility model provides a high fluorine advanced waste treatment device which characterized in that: comprises a reaction device and a sedimentation device;
the reaction device comprises a cylinder body, a top cover, an ellipsoidal bottom, a stirring motor and a stirring paddle, wherein the top cover is arranged at the top of the cylinder body, the ellipsoidal bottom is hermetically connected with the bottom of the cylinder body, the stirring motor is arranged at the central position of the upper part of the top cover, and the upper part of the stirring paddle penetrates through the center of the top cover and is connected with the stirring motor; the top cover is provided with an acid liquid inlet, a medicament feeding port, a first water inlet, a standby liquid inlet and an air outlet, and a first liquid outlet which protrudes downwards is arranged at the center of the bottom of the ellipsoid;
the sedimentation device is in a cubic shape, a water inlet end is arranged along the left side wall of the sedimentation device, a water outlet end is arranged on the right side wall of the opposite side, a second water inlet is formed in the left side wall, the second water inlet is formed in the 1/3-2/3 of the sedimentation device, a second liquid outlet is formed in the right side wall, every two opposite sludge settling plates are arranged at the bottom of the sedimentation device, the sludge settling plates are rectangular, and the bottom edges of the sludge settling plates are parallel to the left side wall of the sedimentation device; every two opposite sludge settling plates and the front and rear side walls of the settling device form a sludge settling cache region with a wide upper part and a narrow lower part, the bottom of the sludge settling cache region is provided with a sludge discharge port on the side wall of the settling device, herringbone settling guide inclined plates which are obliquely arranged are arranged above the sludge settling cache region, and the settling guide inclined plates are supported and fixed in the settling device through inclined plates at the inner side of the settling device; an overflow half pipe is arranged close to the right side wall of the sedimentation device, the overflow half pipe is arranged in parallel with the right side wall of the sedimentation device, the height of the overflow half pipe is lower than that of the side wall of the sedimentation device, a second overflow port is arranged on the rear side wall of the sedimentation device, the second overflow port is communicated with the overflow half pipe, and a first liquid outlet of the reaction device is connected with a second water inlet pipeline of the sedimentation device.
In the technical scheme, a pH interface and a temperature port are further arranged on the side wall of the reaction device.
In the technical scheme, a first liquid level meter port and a second liquid level meter port are arranged on the side wall of the reaction device, and the first liquid level meter port is arranged above the second liquid level meter port.
In the above technical scheme, the side wall of the reaction device is provided with a first overflow port
In the technical scheme, the reaction devices are multiple and are arranged on the operation platform through the support lugs.
In the above technical scheme, the height of the mud settling plate is not higher than the lower edge of the second water inlet.
In the above technical scheme, a water distribution plate is arranged at a position of the sedimentation device close to the second water inlet.
In the technical scheme, the front side wall and the rear side wall of the sedimentation device, which are close to the right side wall, are respectively and correspondingly provided with an arc-shaped bracket, and the arc-shaped brackets are used for fixing the overflow half pipe.
In the above technical scheme, a third liquid level meter port and a fourth liquid level meter port are arranged on the side wall of the water outlet end of the sedimentation device, and the third liquid level meter port and the fourth liquid level meter port are both higher than the second liquid outlet.
In the technical scheme, the herringbone sedimentation guide inclined plates are arranged above the sludge sedimentation buffer zone in parallel along the vertical direction.
The utility model discloses an advantage and beneficial effect do:
the utility model discloses a high fluorine advanced waste treatment device, the device reaction process safety, the reaction is abundant, has increased the calcium fluoride particle diameter in the high fluorine waste water after the reaction, is showing the settleability that has improved the calcium fluoride particle, the required acidizing fluid of control reaction that can be convenient, alkali lye, reaction medicament, the quantity of high fluorine waste water to and reaction time and temperature, the fluoride in the better elimination high fluorine waste water. In addition, the lower part of the settling device enters and goes out of the settling device, so that the same flow of each water flow is ensured, and the short flow phenomenon is avoided. Finally, the high-fluorine wastewater horizontally flows through the precipitation guide inclined plate, the precipitated mud sinks along the gap between the two groups of rectangular mud settling plates under the action of gravity, the water flow running direction is perpendicular to the sludge precipitation direction, so that the sinking process of the sludge is not influenced by water flow, the precipitation efficiency is improved, the precipitation time is shortened, and the treatment speed of the high-fluorine wastewater is improved.
Drawings
FIG. 1 is a front view of a reaction apparatus according to the present invention;
FIG. 2 is a top view of a single reaction apparatus in the present invention;
fig. 3 is a front view of the settling device of the present invention;
fig. 4 is a top view of the settling device of the present invention;
FIG. 5 is a schematic view of the settling zone and the sludge settling buffer zone of the settling device of the present invention
Fig. 6 is a schematic view of an overflow half pipe of a third settling device: a is the front view of the overflow half pipe; b is a top view of the overflow half-pipe;
in the figure: 1: reaction apparatus, 2: acid liquor inlet, 3: a medicament feeding port, 4: first water inlet, 5: air outlet, 6: stirring motor, 7: pH interface, 8: first gauge port, 9: second gauge port, 10: stirring paddle, 11: first liquid outlet, 12: a bracket, 13: ready inlet, 14: first overflow port, 15: temperature port, 16: second water inlet, 17: sludge discharge port, 18: swash plate support, 19: second overflow port, 20: third level gauge port, 21: fourth level gauge port, 22: second liquid outlet, 23: arc bracket, 24: orifice plate, 25: water distribution plate, 26: strut, 27: base, 28: mud-settling plate, 29: sludge settling buffer, 30: a herringbone sedimentation guide inclined plate; 31: a settling zone; 32: a water distribution area; 33: a water outlet area.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.
Example one
A high-fluorine wastewater advanced treatment device comprises: a reaction device and a sedimentation device;
the reaction device comprises a cylinder body, a top cover, an ellipsoidal bottom, a stirring motor and a stirring paddle, wherein the top cover is arranged at the top of the cylinder body, the ellipsoidal bottom is hermetically connected with the bottom of the cylinder body, the stirring motor is arranged at the central position of the upper part of the top cover, and the upper part of the stirring paddle penetrates through the center of the top cover and is connected with the stirring motor; the top cover is provided with an acid liquid inlet, a medicament feeding port, a first water inlet, a standby liquid inlet and an air outlet, a first liquid outlet which protrudes downwards is arranged at the center of the ellipsoidal bottom, and the reaction device is arranged on the operating platform through a bracket;
the sedimentation device is in a cubic shape, a water inlet end is arranged along the left side wall of the sedimentation device, a water outlet end is arranged on the right side wall of the opposite side, a second water inlet is formed in the left side wall, the second water inlet is formed in the 1/3-2/3 of the sedimentation device, a second liquid outlet is formed in the right side wall, every two opposite sludge settling plates are arranged at the bottom of the sedimentation device, the sludge settling plates are rectangular, and the bottom edges of the sludge settling plates are parallel to the left side wall of the sedimentation device; every two opposite sludge settling plates and the front and rear side walls of the settling device form a sludge settling cache region with a wide upper part and a narrow lower part, the bottom of the sludge settling cache region is provided with a sludge discharge port on the side wall of the settling device, herringbone settling guide inclined plates which are obliquely arranged are arranged above the sludge settling cache region, and the settling guide inclined plates are supported and fixed in the settling device through inclined plates at the inner side of the settling device; the sedimentation device can be divided into a sedimentation area and a sludge sedimentation buffer area from top to bottom. The sedimentation zone is mainly an area above the inclined plate support, the area is provided with a herringbone sedimentation guide inclined plate which mainly serves for mud-water separation; the lower part is a sludge sedimentation buffer area used for collecting the settled sludge, the sediment which slides down from the herringbone sedimentation guide inclined plate is further compacted under the action of gravity and slides down to the bottom along the sedimentation plate and is guided to a sludge discharge pipe, an overflow half pipe is arranged close to the right side wall of the sedimentation device, the overflow half pipe is arranged in parallel with the right side wall of the sedimentation device, the height of the overflow half pipe is lower than that of the side wall of the sedimentation device, a second overflow port is arranged on the rear side wall of the sedimentation device, and the second overflow port is communicated with the overflow half pipe; the sedimentation device is supported on the base through a support column, one end of each two opposite sedimentation guide inclined plates close to each other is connected with the base, the number of the reaction devices is two, the number of the sedimentation devices is one, the first liquid outlets of the two reaction devices are connected through a communicating pipe, and the middle position of the communicating pipe is connected with the second water inlet pipeline of the sedimentation device through a tee joint structure.
The inverted V-shaped sedimentation guide inclined plate is fixed on a hexahedral frame, a pore plate is arranged at the joint of the hexahedral frame and the front and rear side walls of the sedimentation device, and when the hexahedral frame is made of PVC and other plastic materials, the hexahedral frame is connected and fixed in the sedimentation device through bolts and the pore plate; the sedimentation device is divided into a water inlet area, a sedimentation area/sludge sedimentation caching area and a water outlet area from left to right, an arc-shaped bracket is arranged on the side wall of the water outlet area and used for fixing the overflow half pipe, and the overflow half pipe is arranged on the side wall of the water outlet areaThe half pipe is
The duct eliminates the upper flat lower round collection tube of the upper portion 1/4.
During intermittent operation, high-fluorine wastewater enters the reaction device from the first water inlet, and sufficient calcium hydroxide and calcium chloride are added into the reagent adding port. The acid liquor inlet and the standby liquid inlet are respectively added with a proper amount of hydrochloric acid and 10 percent of sodium hydroxide solution. Starting a stirring motor, driving a stirring paddle to stir the high-fluorine wastewater at variable speed for reaction, discharging gas generated in a reaction device through an air outlet, performing the reaction for 45min, discharging the high-fluorine wastewater after the reaction through a first liquid outlet at the bottom of the reaction device, entering a sedimentation device through a second water inlet arranged at a water inlet end of the sedimentation device, allowing the high-fluorine wastewater to horizontally flow on a sedimentation guide inclined plate, allowing calcium fluoride particles to slide to a sludge sedimentation buffer zone below the sedimentation device along the sedimentation guide inclined plate under the action of gravity, gathering at the bottom of the sludge sedimentation buffer zone, discharging from a sludge discharge port arranged on the side wall of the sedimentation device at the bottom of the buffer zone, allowing the wastewater precipitated by the sedimentation guide inclined plate to enter a water outlet zone and accumulate in the water outlet zone, controlling the water level in the water outlet zone to be lower than the upper plane of an overflow half pipe, and discharging supernatant after 60min of precipitation through a second liquid outlet, and the fluorine concentration of the supernatant is less than 10mg/L, thereby completing the advanced treatment of the high-fluorine wastewater during intermittent operation.
Under the continuous operation condition, the high-fluorine wastewater after reaction is discharged through a first liquid outlet at the bottom of the reaction device, enters the sedimentation device through a second water inlet arranged at the water inlet end of the sedimentation device, the high-fluorine wastewater horizontally flows on the sedimentation guide inclined plate, calcium fluoride particles slide to a sludge sedimentation buffer zone below the sedimentation device along the sedimentation guide inclined plate under the action of gravity and are gathered at the bottom of the sludge sedimentation buffer zone, and is discharged from a sludge discharge port positioned on the side wall of the sedimentation device at the bottom of the buffer zone, the wastewater precipitated by the precipitation guide inclined plate enters a water outlet zone and is accumulated in the water outlet zone, when the water level in the water outlet area is higher than the upper plane of the overflow half pipe, the supernatant after precipitation enters the overflow half pipe, and the wastewater flows out of the second overflow port through the overflow half pipe, and the fluorine concentration of the supernatant is less than 10mg/L, so that the advanced treatment of the high-fluorine wastewater during continuous operation is completed.
Example two
In addition, a first liquid level meter port and a second liquid level meter port are further arranged on the side wall of the reaction device, the first liquid level meter port is close to the top of the reaction device, the second liquid level meter port is close to the bottom of the reaction device, and the first liquid level meter port and the second liquid level meter port are used for installing liquid level meters; the play water end lateral wall that subsides the device is provided with third level gauge mouth, fourth level gauge mouth, and the third level gauge mouth is close to the top of subsiding the device, and the fourth level gauge mouth sets up to be close to second liquid outlet upper portion, is convenient for observe minimum liquid level, and third level gauge mouth, fourth level gauge mouth are used for installing the level gauge, the level gauge is used for observing the liquid height in reaction unit and the subsidence device respectively, and the accurate inflow of in time mastering prevents that the liquid feeding is too much, ensures that reaction unit and subside the device and handle equivalent high fluorine waste water at every turn, has reached accurate measurement processing waste water volume.
Under the intermittent operation working condition, high-fluorine wastewater enters the reaction device from the first water inlet, and sufficient calcium hydroxide and calcium chloride are added into the agent adding port. And respectively adding a proper amount of hydrochloric acid and a 10% sodium hydroxide solution into the acid liquor inlet and the standby liquid inlet to adjust the pH value of the high-fluorine wastewater, and simultaneously observing the liquid level height in the reaction device in real time through a liquid level meter when adding liquid. When the pH value of the high-fluorine wastewater is 8.0 and the temperature is 60 ℃, starting a stirring motor, driving a stirring paddle to stir the high-fluorine wastewater at a variable speed by the stirring motor, carrying out reaction, discharging gas generated in the reaction device through an air outlet, carrying out the reaction for 45min, discharging the high-fluorine wastewater after the reaction through a first liquid outlet at the bottom of the reaction device, entering a sedimentation device through a second water inlet arranged at the water inlet end of the sedimentation device, allowing the high-fluorine wastewater to horizontally flow on a sedimentation guide inclined plate, allowing calcium fluoride particles to slide to a sludge sedimentation buffer zone below the sedimentation device along the sedimentation guide inclined plate under the action of gravity, gathering at the bottom of the sludge sedimentation buffer zone, discharging the high-fluorine wastewater from a sludge discharge port at the bottom of the buffer zone on the side wall of the sedimentation device, allowing the wastewater after the sedimentation by the sedimentation guide inclined plate to enter a water outlet zone, accumulating in the water outlet zone, and observing the liquid, and controlling the water level height in the water outlet area to be lower than the height of the upper plane of the overflow half pipe, discharging supernatant after precipitating for 60min through a second liquid outlet, and enabling the fluorine concentration of the supernatant to be less than 10mg/L, thereby completing the advanced treatment of the high-fluorine wastewater during intermittent operation.
Under the continuous operation working condition, high-fluorine wastewater after reaction is discharged through a first liquid outlet at the bottom of the reaction device, enters a sedimentation device through a second water inlet arranged at the water inlet end of the sedimentation device, flows horizontally on a sedimentation guide inclined plate, calcium fluoride particles slide down along the sedimentation guide inclined plate to a sludge sedimentation buffer zone below the sedimentation device under the action of gravity, are gathered at the bottom of the sludge sedimentation buffer zone and discharged from a sludge discharge port positioned on the side wall of the sedimentation device at the bottom of the buffer zone, wastewater after sedimentation through the sedimentation guide inclined plate enters a water outlet zone and accumulates in the water outlet zone, the liquid level height of the water outlet zone is observed in real time through a liquid level meter, when the water level in the water outlet zone is higher than the upper plane of an overflow half pipe, supernatant after sedimentation enters the overflow half pipe and flows out from a second overflow port through the overflow half pipe, and the fluorine concentration of the supernatant is less than 10mg/L, thereby completing the advanced treatment of the high-fluorine wastewater during continuous operation.
EXAMPLE III
Embodiment 3 on the basis of embodiment 2, a water distribution plate is arranged on the sedimentation device near the second water inlet, and water outlet holes are uniformly arranged on the water distribution plate, so that high-fluorine wastewater can uniformly enter the sedimentation device; in addition, still be equipped with first overflow mouth on reaction unit's the lateral wall, the position of first overflow mouth should be on the upper side between the mouth about the level gauge position, just so can guarantee that the level gauge normally shows the liquid level, and first overflow mouth is arranged in discharging reaction unit surpasss the waste water of design liquid level.
Under the intermittent operation working condition, high-fluorine wastewater enters the reaction device from the first water inlet, and sufficient calcium hydroxide and calcium chloride are added into the agent adding port. And respectively adding a proper amount of hydrochloric acid and a 10% sodium hydroxide solution into the acid liquor inlet and the standby liquid inlet to adjust the pH value of the high-fluorine wastewater, and simultaneously observing the liquid level height in the reaction device in real time through a liquid level meter when adding liquid. When the pH value of the high-fluorine wastewater is 8.0 and the temperature is 60 ℃, starting a stirring motor, driving a stirring paddle to stir the high-fluorine wastewater in a variable speed manner by the stirring motor, carrying out reaction, discharging gas generated in a reaction device through an air outlet, carrying out the reaction for 45min, discharging the high-fluorine wastewater after the reaction through a first liquid outlet at the bottom of the reaction device, entering a second water inlet arranged at the water inlet end of a sedimentation device, uniformly entering the sedimentation device through small holes on a water distribution plate, horizontally flowing on a sedimentation guide inclined plate, leading calcium fluoride particles to slide to a sludge sedimentation buffer zone below the sedimentation device along the sedimentation guide inclined plate under the action of gravity, gathering at the bottom of the sludge sedimentation buffer zone, discharging from a sludge discharge port at the bottom of the buffer zone on the side wall of the sedimentation device, entering a water outlet zone through the sedimentation guide inclined plate, accumulating in the water outlet zone, and observing the liquid level of the water outlet zone in real time through a liquid level meter, and controlling the water level height in the water outlet area to be lower than the height of the upper plane of the overflow half pipe, discharging supernatant after precipitating for 60min through a second liquid outlet, and enabling the fluorine concentration of the supernatant to be less than 10mg/L, thereby completing the advanced treatment of the high-fluorine wastewater during intermittent operation.
Under the continuous operation working condition, high-fluorine wastewater after reaction is discharged through a first liquid outlet at the bottom of the reaction device, enters a sedimentation device through a second water inlet arranged at the water inlet end of the sedimentation device, flows horizontally on a sedimentation guide inclined plate, calcium fluoride particles slide down along the sedimentation guide inclined plate to a sludge sedimentation buffer zone below the sedimentation device under the action of gravity, are gathered at the bottom of the sludge sedimentation buffer zone and discharged from a sludge discharge port positioned on the side wall of the sedimentation device at the bottom of the buffer zone, wastewater after sedimentation through the sedimentation guide inclined plate enters a water outlet zone and accumulates in the water outlet zone, the liquid level height of the water outlet zone is observed in real time through a liquid level meter, when the water level in the water outlet zone is higher than the upper plane of an overflow half pipe, supernatant after sedimentation enters the overflow half pipe and flows out from a second overflow port through the overflow half pipe, and the fluorine concentration of the supernatant is less than 10mg/L, thereby completing the advanced treatment of the high-fluorine wastewater during continuous operation.
The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.
Claims (10)
1. The utility model provides a high fluorine advanced waste treatment device which characterized in that: comprises a reaction device and a sedimentation device;
the reaction device comprises a cylinder, a top cover, an ellipsoidal bottom, a stirring motor and a stirring paddle, wherein the top cover is arranged at the top of the cylinder, the ellipsoidal bottom is hermetically connected with the bottom of the cylinder, the stirring motor is arranged at the central position of the upper part of the top cover, and the upper part of the stirring paddle penetrates through the center of the top cover and is connected with the stirring motor; the top cover is provided with an acid liquid inlet, a medicament feeding port, a first water inlet, a standby liquid inlet and an air outlet, and a first liquid outlet which protrudes downwards is arranged at the center of the bottom of the ellipsoid;
the sedimentation device is in a cubic shape, a water inlet end is arranged along the left side wall of the sedimentation device, a water outlet end is arranged on the right side wall of the opposite side, a second water inlet is formed in the left side wall, the second water inlet is formed in the 1/3-2/3 of the sedimentation device, a second liquid outlet is formed in the right side wall, every two opposite sludge settling plates are arranged at the bottom of the sedimentation device, the sludge settling plates are rectangular, and the bottom edges of the sludge settling plates are parallel to the left side wall of the sedimentation device; every two opposite sludge settling plates and the front and rear side walls of the settling device form a sludge settling cache region with a wide upper part and a narrow lower part, the bottom of the sludge settling cache region is provided with a sludge discharge port on the side wall of the settling device, herringbone settling guide inclined plates which are obliquely arranged are arranged above the sludge settling cache region, and the settling guide inclined plates are supported and fixed in the settling device through inclined plates at the inner side of the settling device; an overflow half pipe is arranged close to the right side wall of the sedimentation device, the overflow half pipe is parallel to the right side wall of the sedimentation device, the overflow half pipe is lower than the side wall of the sedimentation device, a second overflow port is arranged on the side wall, the second overflow port is communicated with the overflow half pipe, and a first liquid outlet of the reaction device is connected with a second water inlet pipeline of the sedimentation device.
2. The advanced treatment device for high-fluorine wastewater according to claim 1, which is characterized in that: and a pH interface and a temperature port are also arranged on the side wall of the reaction device.
3. The advanced treatment device for high-fluorine wastewater according to claim 2, which is characterized in that: the reaction device is characterized in that a first liquid level meter port and a second liquid level meter port are arranged on the side wall of the reaction device, and the first liquid level meter port is arranged above the second liquid level meter port.
4. The advanced treatment device for high-fluorine wastewater according to claim 3, which is characterized in that: and a first overflow port is arranged on the side wall of the reaction device.
5. The advanced treatment device for high-fluorine wastewater as set forth in claim 4, which is characterized in that: the reaction devices are multiple and are arranged on the operating platform through the support lugs.
6. The advanced treatment device for high-fluorine wastewater as set forth in claim 5, which is characterized in that: the height of the mud settling plate is not higher than the lower edge of the second water inlet.
7. The advanced treatment device for high-fluorine wastewater as set forth in claim 6, which is characterized in that: and a water distribution plate is arranged at the position of the sedimentation device, which is close to the second water inlet.
8. The advanced treatment device for high-fluorine wastewater as set forth in claim 7, which is characterized in that: arc-shaped brackets are correspondingly arranged on the front side wall and the rear side wall of the sedimentation device, which are close to the right side wall, respectively, and the arc-shaped brackets are used for fixing the overflow half pipe.
9. The advanced treatment device for high-fluorine wastewater according to claim 8, which is characterized in that: and a third liquid level meter port and a fourth liquid level meter port are arranged on the side wall of the water outlet end of the sedimentation device, and the third liquid level meter port and the fourth liquid level meter port are both higher than the second liquid outlet.
10. The advanced treatment device for high-fluorine wastewater according to claim 9, which is characterized in that: the herringbone sedimentation guide inclined plates are arranged above the sludge sedimentation buffer zone in parallel along the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920567122.7U CN210048584U (en) | 2019-04-24 | 2019-04-24 | Advanced treatment device for high-fluorine wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920567122.7U CN210048584U (en) | 2019-04-24 | 2019-04-24 | Advanced treatment device for high-fluorine wastewater |
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| CN210048584U true CN210048584U (en) | 2020-02-11 |
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| CN201920567122.7U Active CN210048584U (en) | 2019-04-24 | 2019-04-24 | Advanced treatment device for high-fluorine wastewater |
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Address after: 450051 No. 1102, floor 11, unit 2, building 1, No. 58 rantun Road, Zhongyuan District, Zhengzhou City, Henan Province Patentee after: Elamo (Henan) Technology Co.,Ltd. Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Address before: 450051 No. 1102, floor 11, unit 2, building 1, No. 58 rantun Road, Zhongyuan District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YISEN ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Patentee before: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. |
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