CN217808824U - Two-stage separation device for treating landfill leachate - Google Patents
Two-stage separation device for treating landfill leachate Download PDFInfo
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- CN217808824U CN217808824U CN202221195612.7U CN202221195612U CN217808824U CN 217808824 U CN217808824 U CN 217808824U CN 202221195612 U CN202221195612 U CN 202221195612U CN 217808824 U CN217808824 U CN 217808824U
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- flash
- space
- landfill leachate
- tank
- flash tank
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 28
- 238000000926 separation method Methods 0.000 title claims description 16
- 239000011550 stock solution Substances 0.000 claims abstract description 24
- 239000000243 solution Substances 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 239000002518 antifoaming agent Substances 0.000 claims description 13
- 239000012141 concentrate Substances 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000003595 mist Substances 0.000 abstract description 14
- 238000007701 flash-distillation Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 9
- 230000008676 import Effects 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a two-stage separator for handling landfill leachate, include: the system comprises a flash tank, a flash space is arranged at the lower part of the flash tank, a demisting space is arranged at the upper part of the flash tank, the flash space is in a negative pressure state, a stock solution inlet and a concentrated solution outlet are arranged at the lower part of the flash tank corresponding to the flash space, a secondary steam outlet is arranged at the upper part of the flash tank corresponding to the demisting space, and the flash space is communicated with the demisting space; baffling board defroster and silk screen defroster all set up in the inside of flash tank and lie in the defogging space, and the baffling board defroster lies in the below of silk screen defroster and both interval settings. Mist and fog drops can be removed after the steam passes through the defogging process to the defogging efficiency can be improved and the defogging effect can be promoted to a great extent in the two-stage defogging, and then the mist content in the steam that produces after reducing the landfill leachate flash distillation, the emission and the recycle of the steam of being convenient for.
Description
Technical Field
The utility model relates to a landfill leachate handles field, in particular to a two-stage separator for handling landfill leachate.
Background
The flash evaporation is a process mode of gas-liquid separation, a flash evaporation process can be used in the treatment of the landfill leachate, specifically, after the stock solution of the high-pressure landfill leachate is placed in a low-pressure separation device, the boiling point of the stock solution can be reduced along with the sudden reduction of the pressure, so that the moisture in the stock solution can be vaporized and separated, the separated steam can be recycled or discharged, the residual stock solution is the landfill leachate with higher concentration, the centralized treatment can be realized, the volume of the stock solution purified through flash evaporation is greatly reduced, and the treatment of the landfill leachate can be facilitated.
In the current separator that is used for the flash distillation, the steam that produces after the flash distillation can directly arrange to the device outside, but this part steam can be smugglied secretly and have the mist, probably remains some landfill leachate in the mist, is unfavorable for directly discharging.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a two-stage separator for handling landfill leachate can reduce the interior fog foam content of landfill leachate flash distillation back steam.
According to the utility model discloses a two-stage separation device for handling landfill leachate, include: the system comprises a flash tank, a flash space is arranged at the lower part of the flash tank, a demisting space is arranged at the upper part of the flash tank, the flash space is in a negative pressure state, a stock solution inlet and a concentrated solution outlet are arranged at the lower part of the flash tank corresponding to the flash space, a secondary steam outlet is arranged at the upper part of the flash tank corresponding to the demisting space, and the flash space is communicated with the demisting space; the baffle plate demister and the wire mesh demister are both arranged in the flash tank and positioned in the demisting space, the baffle plate demister is positioned below the wire mesh demister and arranged at intervals, and the secondary steam outlet is arranged above the wire mesh demister.
The method has at least the following beneficial effects: steam that produces after the stoste flash distillation can form into clean steam and discharge by the secondary steam export after baffle plate defroster and silk screen defroster carry out the two-stage defogging, wherein, can get rid of mist and droplet after the defogging process to steam to the two-stage defogging can improve defogging efficiency and promotion defogging effect at to a great extent, and then reduces the mist content in the steam that produces after the landfill leachate flash distillation, the emission and the recycle of the steam of being convenient for.
According to some embodiments of the utility model, the silk screen defroster pass through the lifting rope hoist and mount in the inside of flash tank.
According to some embodiments of the utility model, still be provided with clean shower nozzle in the flash tank, clean shower nozzle is located the top of silk screen defroster.
According to the utility model discloses a some embodiments, the flash tank is provided with the accepting groove, the accepting groove is the shape of the peripheral perk that makes progress of middle part undercut, the accepting groove extends along the horizontal direction, the both ends of accepting the groove are stiff end and cantilever end respectively, the stiff end is in stoste import department with the inside fixed connection of flash tank, the accepting groove can accept stoste import department flows in the flash space stoste, the cantilever end stretch into to the middle part in flash space.
According to the utility model discloses a some embodiments, the inside piece that sprays that still is provided with of flash tank, it is located to spray the piece accept the groove top, spray the piece can to spray anti-foaming agent in the flash space, the direction that sprays of spraying down and with the central line in flash space sprays as the center.
According to some embodiments of the invention, the anti-foaming agent is a defoamer or the stock solution without flash evaporation.
According to the utility model discloses a some embodiments, still be provided with the baffle in the flash tank, the baffle is located place in the flash space the top of accepting the groove.
According to some embodiments of the invention, the baffle is inclined downwardly from the edge of the flash space to the direction of the center of the flash space.
According to some embodiments of the utility model, be provided with in the concentrate export and prevent revolving the board, prevent revolving the board configuration and being configured into and prevent after the flash distillation the stoste is in the concentrate exit produces the vortex.
According to some embodiments of the utility model, the rotation-preventing plate is two vertical plates which are perpendicular to each other.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of the concentrate outlet according to an embodiment of the present invention.
Reference numerals:
a flash tank 100, a flash space 110, a catch basin 120, a spray piece 130, a baffle 140, a sight hole 150, a demisting space 160, and a cleaning spray head 170;
a stock solution inlet 200;
a concentrate outlet 300, an anti-rotation plate 310, a plate 311;
a secondary steam outlet 400;
a baffle demister 500;
a wire mesh mist eliminator 600.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the present invention, such as the upper and lower directions, is the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, the utility model discloses a two-stage separation device for refuse disposal filtration liquid specifically includes flash tank 100, baffling board defroster 500 and silk screen defroster 600.
Wherein, the lower part of flash tank 100 has flash space 110, and the upper portion of flash tank 100 has defogging space 160, and the inside negative pressure state that can be of flash space 110, the lower part of flash tank 100 corresponds the position in flash space 110 and is provided with stoste import 200 and concentrate export 300, and the upper portion of flash tank 100 corresponds the position in defogging space 160 and is provided with secondary steam outlet 400, and flash space 110 and defogging space 160 are linked together. The landfill leachate stock solution to be flashed can enter the flash space 110 through the stock solution inlet 200, and because the flash space 110 is in a negative pressure state, the stock solution to be flashed can undergo a flash process and evaporate water in the flash space 110, and the evaporated water can be discharged through the secondary steam outlet 400.
Steam that produces after stoste flash distillation can form into clean secondary steam and discharge by secondary steam outlet 400 after carrying out the two-stage defogging through baffling board defroster 500 and silk screen defroster 600, and wherein baffling board defroster 500 and silk screen defroster 600 all can set up in flash tank 100 and lie in defogging space 160, and baffling board defroster 500 need lie in the below of silk screen defroster 600 and both can set up at a certain distance apart, and secondary steam outlet 400 need lie in the top of silk screen defroster 600. Mist and fog drops can be removed after the steam passes through the defogging process to the defogging efficiency can be improved and the defogging effect can be promoted to a great extent in the two-stage defogging, and then the mist content in the steam that produces after reducing the landfill leachate flash distillation, the emission and the recycle of the steam of being convenient for.
As shown in fig. 1, the wire mesh demister 600 in the embodiment of the present invention can be hung in the flash tank 100 through a lifting rope, so as to adjust the setting height of the wire mesh demister 600. In addition, a cleaning spray head 170 may be disposed in the flash tank 100, and the cleaning spray head 170 may be disposed above the wire mist eliminator 600 to periodically clean the wire mist eliminator 600, the baffle mist eliminator 500 therebelow, and other components.
The embodiment of the utility model provides an inside accepting groove 120 that still is provided with of flash tank 100, accepting groove 120 extends along the horizontal direction, and the one end of accepting groove 120 is the stiff end, and the other end is the cantilever end, and the stiff end is imported 200 departments at the stoste and the internal connection of flash tank 100, and accepting groove 120 can accept the stoste that the import 200 of stoste was located to flow in, and the cantilever end stretches into the middle part to flash space 110. The stoste can flow to the middle part in flash space gradually under the guide effect of accepting groove 120 after flowing into flash space 110, and can not directly fall downwards, consequently can increase the time that the stoste is detained in flash space 110, and then can make the flash distillation more abundant, in addition, still can improve the homogeneity of each part flash distillation of stoste with stoste drainage to flash space 110's middle part. As shown in fig. 1, the receiving groove 120 in the embodiment of the present invention may be in a shape of a central portion of a downward concave and a periphery of the upward tilting to receive more stock solution as much as possible, the receiving groove 120 may be flush with a lower surface of the stock solution inlet 200, and the upward tilting portion of the receiving groove 120 may extend to a position of the stock solution inlet 200 near the central portion in a vertical direction.
As shown in fig. 1, the flash tank 100 according to the embodiment of the present invention is further provided with a spraying member 130 inside, the spraying member 130 can spray the anti-foaming agent into the flash space 110, the spraying member 130 is located above the receiving groove 120, the spraying direction of the spraying member 130 can be set to face downward, and the spraying member 130 can be set to spray with the center line of the flash space 110 as the center. The anti-foaming agent sprayed by the spraying member 130 can cool the steam flashed from the stock solution, and part of the liquid in the sprayed steam can fall again due to gravity and undergo flash evaporation again, and the rest of the more fine liquid mist in the steam can be removed by the mist removal device.
It is understood that the anti-foaming agent sprayed from the above-mentioned spray member 130 may be an antifoaming agent, and specifically, the antifoaming agent may change the surface tension of the solution through a chemical reaction, thereby preventing foaming, and the antifoaming agent may be classified into a non-silicon type, a polyether type, an organic silicon type, and the like, and may be determined according to the characteristics and composition of the landfill leachate stock solution. In addition, the antifoaming agent can also be a stock solution which is not flashed, namely a low-temperature stock solution, the low-temperature stock solution can reduce the temperature of steam after being sprayed, and the low-temperature stock solution can be used for spraying to have an antifoaming effect to a certain extent because the substance is easier to foam at a high temperature.
Referring to fig. 1 and 2, the concentrate outlet 300 in the embodiment of the present invention is provided with a rotation-preventing plate 310, wherein the rotation-preventing plate 310 is configured to prevent the stock solution after the flash evaporation from generating vortex at the concentrate outlet 300, and further prevent the separation device from generating vibration and generating noise at the concentrate outlet. Specifically, the anti-rotation plate 310 may be disposed with a plurality of plate members 311 arranged in parallel or in a cross manner, so that the flashed raw liquid flowing out from the concentrated liquid outlet 300 may be forced to be divided into a plurality of portions to break the vortex of the flashed raw liquid. For example, the anti-rotation plate 310 may be composed of two plate members 311 vertically arranged and in a cross shape perpendicular to each other.
It can be understood that the flash tank 100 according to the embodiment of the present invention is further provided with a baffle 140, the baffle 140 is located in the flash space 110 and is disposed above the receiving tank 120, and the baffle 140 can prevent the stock solution from being sprayed onto other internal components in the upper portion of the flash space 110 due to too violent flash process. Specifically, the baffle 140 may be disposed to be inclined downward from the edge of the flash space 110 to the center of the flash space 110, so that the raw liquid splashed onto the baffle 140 may flow to the center of the flash space 110 to continue the flash process or fall back onto the receiving tank 120.
Referring to fig. 1, the embodiment of the present invention provides an observation hole 150 on the flash tank 100 on the side opposite to the raw liquid inlet 200, and an operator can visually monitor the flash evaporation condition inside the flash evaporation space 110 through the observation hole 150, and then can adjust the amount of the anti-foaming agent, the feeding amount of the raw liquid, and the like according to the intensity of the flash evaporation.
The embodiment of the utility model provides an in concentrate export 300 can be linked together with stoste import 200, and the stoste after the concentration can be leading-in again to stoste import 200 department and enter into in flash space 110 to carry out the manifold cycles flash distillation, can improve the concentration after the stoste flash distillation, further reduce the stoste volume after the concentration.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (10)
1. A two-stage separator for handling landfill leachate, its characterized in that includes:
the system comprises a flash tank, a flash space is arranged at the lower part of the flash tank, a demisting space is arranged at the upper part of the flash tank, the flash space is in a negative pressure state, a stock solution inlet and a concentrated solution outlet are arranged at the lower part of the flash tank corresponding to the flash space, a secondary steam outlet is arranged at the upper part of the flash tank corresponding to the demisting space, and the flash space is communicated with the demisting space;
the baffle plate demister and the wire mesh demister are arranged in the flash tank and positioned in the demisting space, the baffle plate demister is positioned below the wire mesh demister and arranged at intervals, and the secondary steam outlet is arranged above the wire mesh demister.
2. The two-stage separation device for treating landfill leachate of claim 1, wherein the wire mesh demister is suspended inside the flash tank by a lifting rope.
3. The two-stage separation device for treating landfill leachate according to claim 1, wherein a cleaning spray head is further disposed in the flash tank, and the cleaning spray head is located above the wire mesh demister.
4. The two-stage separation device for treating landfill leachate according to claim 1, wherein the flash tank is provided with a receiving tank, the receiving tank is in a shape that the middle part is downwards sunken and the periphery is upwards tilted, the receiving tank extends along the horizontal direction, two ends of the receiving tank are respectively a fixed end and a cantilever end, the fixed end is fixedly connected with the inside of the flash tank at the raw liquid inlet, the receiving tank can receive the raw liquid flowing into the flash space at the raw liquid inlet, and the cantilever end extends into the middle part of the flash space.
5. The two-stage separation device for treating landfill leachate according to claim 4, wherein a spraying part is further arranged inside the flash tank, the spraying part is located above the receiving tank, the spraying part can spray the anti-foaming agent into the flash space, and the spraying direction of the spraying part is downward and the spraying part is sprayed by taking the center line of the flash space as the center.
6. The two-stage separation device for treating landfill leachate according to claim 5, wherein the anti-foaming agent is an antifoaming agent or the raw liquor without being flashed.
7. The two-stage separation device for treating landfill leachate according to claim 4, wherein a baffle is further arranged in the flash tank, is positioned in the flash space and is arranged above the receiving tank.
8. The two-stage separation device for treating landfill leachate according to claim 7, wherein the baffle slopes downward from the edge of the flash space in a direction toward the center of the flash space.
9. The two-stage separation device for treating landfill leachate of claim 1, wherein an anti-rotation plate is arranged in the concentrate outlet, and the anti-rotation plate is configured to prevent the raw liquid after flashing from generating vortex at the concentrate outlet.
10. The two-stage separation device for treating landfill leachate of claim 9, wherein the rotation preventing plate is two vertically arranged and mutually perpendicular plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221195612.7U CN217808824U (en) | 2022-05-18 | 2022-05-18 | Two-stage separation device for treating landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221195612.7U CN217808824U (en) | 2022-05-18 | 2022-05-18 | Two-stage separation device for treating landfill leachate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217808824U true CN217808824U (en) | 2022-11-15 |
Family
ID=83983646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221195612.7U Active CN217808824U (en) | 2022-05-18 | 2022-05-18 | Two-stage separation device for treating landfill leachate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217808824U (en) |
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2022
- 2022-05-18 CN CN202221195612.7U patent/CN217808824U/en active Active
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