CN218025489U - Low-temperature evaporation device for wastewater treatment - Google Patents
Low-temperature evaporation device for wastewater treatment Download PDFInfo
- Publication number
- CN218025489U CN218025489U CN202221457476.4U CN202221457476U CN218025489U CN 218025489 U CN218025489 U CN 218025489U CN 202221457476 U CN202221457476 U CN 202221457476U CN 218025489 U CN218025489 U CN 218025489U
- Authority
- CN
- China
- Prior art keywords
- evaporation
- crystal
- separation
- liquid
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a low-temperature evaporation device for wastewater treatment, which comprises an evaporation crystallization mechanism, a negative pressure pump and a crystal separation mechanism; the evaporative crystallization mechanism comprises an evaporative shell and a heater; the inlet of the negative pressure pump is communicated with the steam outlet; the crystal separation mechanism comprises a solid-liquid separation piece and a reflux pump. The utility model provides a technical scheme's beneficial effect is: the crystal is appeared and is precipitated in the bottom in the evaporation chamber from the waste liquid, when the sedimentary crystal of evaporation chamber bottom reached a quantitative time, open the backwash pump, the waste liquid and the crystal of evaporation chamber bottom got into first separation intracavity from the crystal export, the crystal is blockked by filtering piece, the waste liquid passes and filters piece entering second separation chamber, flow back to the evaporation intracavity via the backwash pump again, thereby can make the crystal get into first separation intracavity, and when the crystal of clearance first separation intracavity, can not influence the evaporation of evaporation intracavity waste liquid, consequently, can realize the online clearance of crystal, the wastewater treatment efficiency has been improved.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment technique and specifically relates to a low temperature evaporation plant is used in waste water treatment.
Background
In the industrial salt-containing wastewater treatment process, after the industrial salt-containing wastewater is preheated by the heating chamber, the superheated liquid enters the separation chamber for gas-liquid separation.
Chinese utility model patent with application number CN202120238986.1 discloses a low temperature evaporation crystallization device, which can perform low temperature evaporation on industrial salt-containing wastewater to separate salt in the wastewater.
However, after the low-temperature evaporative crystallization equipment is used for a period of time, because the crystals are continuously deposited at the bottom of the crystallizer, the use of the crystallizer can be influenced, and therefore the equipment needs to be stopped periodically to clean the crystals, is inconvenient to use, and simultaneously reduces the wastewater treatment efficiency.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a low-temperature evaporation apparatus for wastewater treatment, which is used to solve the technical problems that the existing low-temperature evaporation crystallization equipment needs to be stopped periodically for crystal cleaning, is inconvenient to use, and reduces the wastewater treatment efficiency.
In order to realize the aim, the utility model provides a low-temperature evaporation device for wastewater treatment, which comprises an evaporation crystallization mechanism, a negative pressure pump and a crystal separation mechanism;
the evaporative crystallization mechanism comprises an evaporation shell and a heater, the evaporation shell is provided with a closed evaporation cavity, the upper end of the evaporation shell is provided with a steam outlet communicated with the evaporation cavity, the lower end of the evaporation shell is provided with a crystal outlet communicated with the evaporation cavity, the crystal outlet is provided with a crystal discharge valve, and the heater is used for heating fluid in the evaporation cavity;
the inlet of the negative pressure pump is communicated with the steam outlet;
crystal separation mechanism includes solid-liquid separation spare and backwash pump, the solid-liquid separation spare includes separator box and filters the piece, the separator box has an inclosed separation chamber, filter the piece set up in the separation intracavity and will first separation chamber and second separation chamber are separated into to the separation chamber, first separation chamber with crystal export intercommunication, the import of backwash pump with second separation chamber intercommunication, the export of backwash pump with evaporation chamber intercommunication.
In some embodiments, a cleaning opening is formed in the upper end surface of the separation box, and a cover plate is detachably connected to the cleaning opening.
In some embodiments, the upper end face of the separation box is provided with a liquid inlet, and the liquid inlet is communicated with the crystal outlet; the solid-liquid separation part further comprises a sewage intercepting net cage, wherein an opening is formed in the upper end of the sewage intercepting net cage, and the sewage intercepting net cage is arranged in the separation box and located below the liquid inlet.
In some embodiments, a handle is fixed on the sewage interception net cage.
In some embodiments, the solid-liquid separator further comprises a connecting pipe, an upper end of the connecting pipe is communicated with the crystal outlet, and a lower end of the connecting pipe is communicated with the liquid inlet.
In some embodiments, a liquid outlet communicated with the second separation cavity is formed in the lower end of the separation box, and a liquid outlet valve is arranged on the liquid outlet; the crystal separation mechanism further comprises a liquid outlet pipe, one end of the liquid outlet pipe is communicated with the liquid outlet, and the other end of the liquid outlet pipe is communicated with an inlet of the reflux pump.
In some embodiments, the evaporation shell is provided with a liquid return port communicated with the evaporation cavity, and the liquid return port is provided with a liquid return valve; the crystal separation mechanism further comprises a liquid return pipe, one end of the liquid return pipe is communicated with the liquid return port, and the other end of the liquid return pipe is communicated with an outlet of the reflux pump.
In some embodiments, the low-temperature evaporation device for wastewater treatment further comprises a compressor and a roller evaporator, wherein an inlet of the compressor is communicated with an outlet of the negative pressure pump, and an outlet of the compressor is communicated with an inlet of the roller evaporator.
In some embodiments, the lower end of the evaporation shell is further provided with a liquid outlet communicated with the evaporation cavity; the low-temperature evaporation device for wastewater treatment further comprises a centrifuge, and an inlet of the centrifuge is communicated with the liquid outlet.
In some embodiments, the inlet of the centrifuge communicates with the drain port via a drain tube.
Compared with the prior art, the utility model provides a technical scheme's beneficial effect is: when using, let in the evaporation casing with the waste liquid from the waste liquid import, heat the waste liquid through the heater, reduce the atmospheric pressure in the evaporation intracavity through the negative pressure pump simultaneously, thereby reduce the boiling point of the waste liquid in the evaporation intracavity, through the evaporation, the concentration of the waste liquid in the evaporation intracavity can be higher and higher, and constantly there is the crystal to separate out from the waste liquid and deposit in the bottom in evaporation chamber, when the deposited crystal of evaporation chamber bottom reaches a certain amount, open the backwash pump, the waste liquid and the crystal of evaporation chamber bottom get into first separation intracavity from the crystal export, the crystal is blockked by filtering piece, the waste liquid passes and filters piece entering second separation chamber, flow back to the evaporation intracavity via the backwash pump again, thereby can make the crystal get into first separation intracavity, and when the crystal of clearance first separation intracavity, can not influence the evaporation of the interior waste liquid of evaporation chamber, consequently, can realize the online clearance of crystal, the waste water treatment efficiency has been improved.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a low-temperature evaporation device for wastewater treatment provided by the present invention;
FIG. 2 is a schematic structural view of the solid-liquid separator in FIG. 1;
FIG. 3 is a schematic structural view of the solid-liquid separating element in FIG. 2 when the dirt intercepting net cage is moved below the cleaning port;
in the figure: 1-evaporative crystallization mechanism, 11-evaporative shell, 111-steam outlet, 112-crystal outlet, 113-crystal discharge valve, 114-waste liquid inlet, 115-liquid return port, 116-liquid return valve, 117-liquid outlet, 2-negative pressure pump, 3-crystal separation mechanism, 31-solid-liquid separation member, 311-separation box, 3111-first separation cavity, 3112-second separation cavity, 3113-cleaning port, 3114-liquid inlet, 3115-liquid outlet, 3116-liquid outlet valve, 312-filter, 313-sewage interception net cage, 3131-handle, 314-connecting pipe, 32-reflux pump, 33-liquid outlet pipe, 34-liquid return pipe, 4-compressor, 5-drum evaporator, 6-centrifuge, 61-liquid outlet pipe.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Referring to fig. 1, the utility model provides a low-temperature evaporation device for wastewater treatment, which comprises an evaporation crystallization mechanism 1, a negative pressure pump 2 and a crystal separation mechanism 3.
The evaporative crystallization mechanism 1 comprises an evaporative shell 11 and a heater (not shown), wherein the evaporative shell 11 is provided with a closed evaporation cavity, the upper end of the evaporative shell 11 is provided with a steam outlet 111 communicated with the evaporation cavity, the lower end of the evaporative shell 11 is provided with a crystal outlet 112 communicated with the evaporation cavity, the crystal outlet 112 is provided with a crystal discharge valve 113, the evaporative shell 11 is further provided with a waste liquid inlet 114 for waste liquid to enter, and the heater is used for heating fluid in the evaporation cavity.
The inlet of the negative pressure pump 2 communicates with the steam outlet 111. The negative pressure pump 2 is used for reducing the air pressure in the evaporation cavity, so that the boiling point of the solution in the evaporation cavity is reduced, and the energy required by the evaporation process is further reduced.
When the waste liquid evaporator is used, waste liquid is introduced into the evaporation shell 11 from the waste liquid inlet 114, the waste liquid is heated through the heater, meanwhile, the air pressure in the evaporation cavity is reduced through the negative pressure pump 2, so that the boiling point of the waste liquid in the evaporation cavity is reduced, through evaporation, the concentration of the waste liquid in the evaporation cavity is higher and higher, crystals are continuously separated from the waste liquid and precipitated at the bottom of the evaporation cavity, when crystals deposited at the bottom of the evaporation cavity reach a certain amount, the crystal discharge valve 113 and the reflux pump 32 are opened, the waste liquid and the crystals at the bottom of the evaporation cavity enter the first separation cavity 3111 from the crystal outlet 112, the crystals are blocked by the filter 312, the waste liquid passes through the filter 312 to enter the second separation cavity 3112 and then flows back into the evaporation cavity through the reflux pump 32, so that the crystals can enter the first separation cavity 3111, then, the crystal discharge valve 113 and the reflux pump 32 are closed, and the crystals in the first separation cavity 3111 are cleaned.
In order to facilitate cleaning the crystal in the first separation cavity 3111, referring to fig. 1-3, in a preferred embodiment, a cleaning port 3113 is formed on an upper end surface of the separation box 311, a cover plate (not shown) is detachably connected to the cleaning port 3113, when cleaning is not needed, the cover plate is in a closed state, so that the cleaning port 3113 is in a closed state, and when the crystal in the first separation cavity 3111 needs to be cleaned, after the crystal discharge valve 113 is closed, the cover plate is opened, so that the crystal in the first separation cavity 3111 can be fished out through a tool such as a strainer.
To further facilitate cleaning the crystal in the first separation chamber 3111, referring to fig. 1-3, in a preferred embodiment, a liquid inlet 3114 is disposed on an upper end surface of the separation chamber 311, and the liquid inlet 3114 is communicated with the crystal outlet 112; the solid-liquid separation part 31 further comprises a sewage interception net cage 313, the upper end of the sewage interception net cage 313 is provided with an opening, the sewage interception net cage 313 is arranged in the separation box 311 and is positioned below the liquid inlet 3114, when the crystal in the first separation cavity 3111 needs to be cleaned, after the crystal discharge valve 113 is closed, the cover plate is opened, the sewage interception net cage 313 is taken out from the separation box 311, and the crystal is placed back after being cleaned.
In order to facilitate the removal of the dirt-intercepting net cage 313, referring to fig. 1 to 3, in a preferred embodiment, a handle 3131 is fixed to the dirt-intercepting net cage 313.
In order to realize the communication between the crystal outlet 112 and the inlet 3114, referring to fig. 1-3, in a preferred embodiment, the solid-liquid separator 31 further includes a connecting pipe 314, an upper end of the connecting pipe 314 is communicated with the crystal outlet 112, and a lower end of the connecting pipe 314 is communicated with the inlet 3114.
To implement the connection of the reflux pump 32, referring to fig. 1, in a preferred embodiment, a liquid outlet 3115 is disposed at a lower end of the separation box 311 and is communicated with the second separation chamber, and a liquid outlet valve 3116 is disposed on the liquid outlet 3115; crystal separating mechanism 3 still includes drain pipe 33, the one end of drain pipe 33 with liquid outlet 3115 intercommunication, the other end of drain pipe 33 with reflux pump 32's import intercommunication.
In order to implement the connection of the reflux pump 32, please refer to fig. 1, in a preferred embodiment, a liquid return port 115 communicating with the evaporation cavity is formed on the evaporation shell 11, and a liquid return valve 116 is disposed on the liquid return port 115; the crystal separation mechanism 3 further comprises a liquid return pipe 34, one end of the liquid return pipe 34 is communicated with the liquid return port 115, and the other end of the liquid return pipe 34 is communicated with the outlet of the liquid return pump 32.
In order to separate the organic matter that cannot be crystallized in the waste liquid into solid waste, referring to fig. 1, in a preferred embodiment, the low-temperature evaporation apparatus for waste water treatment further includes a compressor 4 and a drum evaporator 5, an inlet of the compressor 4 is communicated with an outlet of the negative pressure pump 2, an outlet of the compressor 4 is communicated with an inlet of the drum evaporator 5, the compressor 4 can compress the gas pumped by the negative pressure pump 2, and then the gas is evaporated by the drum evaporator 5 to separate the organic matter that cannot be crystallized in the waste liquid into solid waste, and the steam is recycled through the next evaporation housing 11.
In order to separate fine crystals that cannot settle in the evaporation cavity, referring to fig. 1, in a preferred embodiment, the lower end of the evaporation shell 11 is further provided with a liquid discharge port 117 communicated with the evaporation cavity; the low-temperature evaporation device for wastewater treatment further comprises a centrifuge 6, an inlet of the centrifuge 6 is communicated with the liquid outlet 117, when the low-temperature evaporation device is used, fine crystals which cannot be settled enter the centrifuge 6 along with liquid, crystals can be separated out through the centrifuge 6, and the separated desalted water can be returned to a production system to replace softened water for utilization, so that the system is guaranteed to operate in a clear liquid environment all the time.
To implement the connection of the centrifuge 6, referring to fig. 1, in a preferred embodiment, the inlet of the centrifuge 6 is connected to the liquid outlet 117 via a liquid outlet pipe 61.
For better understanding of the present invention, the operation of the low temperature evaporation device for wastewater treatment provided by the present invention is described in detail below with reference to fig. 1 to 3: when the waste liquid evaporator is used, the waste liquid is introduced into the evaporation shell 11 from the waste liquid inlet 114, the waste liquid is heated by the heater, meanwhile, the air pressure in the evaporation cavity is reduced by the negative pressure pump 2, so that the boiling point of the waste liquid in the evaporation cavity is reduced, through evaporation, the concentration of the waste liquid in the evaporation cavity is higher and higher, crystals are continuously separated from the waste liquid and precipitated at the bottom of the evaporation cavity, when crystals deposited at the bottom of the evaporation cavity reach a certain amount, the crystal discharge valve 113, the liquid return valve 116 and the liquid return pump 32 are opened, the waste liquid and the crystals at the bottom of the evaporation cavity enter the first separation cavity 3111 from the crystal outlet 112, the crystals are blocked by the filter member 312, the waste liquid passes through the filter member 312 to enter the second separation cavity 3112 and then flows back into the evaporation cavity through the liquid return pump 32, so that the crystals can enter the first separation cavity 3111, then, the crystal discharge valve 113, the liquid return valve 116 and the liquid return pump 32 are closed, and the crystals in the first separation cavity 3111 are cleaned.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
1. A low-temperature evaporation device for wastewater treatment is characterized by comprising an evaporation crystallization mechanism, a negative pressure pump and a crystal separation mechanism;
the evaporation crystallization mechanism comprises an evaporation shell and a heater, the evaporation shell is provided with a closed evaporation cavity, the upper end of the evaporation shell is provided with a steam outlet communicated with the evaporation cavity, the lower end of the evaporation shell is provided with a crystal outlet communicated with the evaporation cavity, the crystal outlet is provided with a crystal discharge valve, and the heater is used for heating fluid in the evaporation cavity;
the inlet of the negative pressure pump is communicated with the steam outlet;
crystal separation mechanism includes solid-liquid separation spare and backwash pump, the solid-liquid separation spare includes separator box and filters the piece, the separator box has an inclosed separation chamber, filter the piece set up in the separation intracavity and will first separation chamber and second separation chamber are separated into to the separation chamber, first separation chamber with crystal export intercommunication, the import of backwash pump with second separation chamber intercommunication, the export of backwash pump with evaporation chamber intercommunication.
2. The low-temperature evaporation device for wastewater treatment as claimed in claim 1, wherein a cleaning opening is formed in an upper end surface of the separation box, and a cover plate is detachably connected to the cleaning opening.
3. The low-temperature evaporation device for wastewater treatment as claimed in claim 1, wherein a liquid inlet is formed in an upper end face of the separation tank, and the liquid inlet is communicated with the crystal outlet;
the solid-liquid separation part further comprises a sewage interception net cage, an opening is formed in the upper end of the sewage interception net cage, and the sewage interception net cage is arranged in the separation box and located below the liquid inlet.
4. A low temperature evaporation apparatus for wastewater treatment as claimed in claim 3, wherein said sewage intercepting net cage is fixed with a handle.
5. The low-temperature evaporation device for wastewater treatment as set forth in claim 3, wherein the solid-liquid separator further comprises a connection pipe, an upper end of the connection pipe communicates with the crystal outlet, and a lower end of the connection pipe communicates with the liquid inlet.
6. The low-temperature evaporation device for wastewater treatment as claimed in claim 1, wherein a liquid outlet communicated with the second separation chamber is formed at the lower end of the separation box, and a liquid outlet valve is arranged on the liquid outlet;
the crystal separation mechanism further comprises a liquid outlet pipe, one end of the liquid outlet pipe is communicated with the liquid outlet, and the other end of the liquid outlet pipe is communicated with an inlet of the reflux pump.
7. The low-temperature evaporation device for wastewater treatment as claimed in claim 1, wherein the evaporation housing is provided with a liquid return port communicated with the evaporation cavity, and the liquid return port is provided with a liquid return valve;
the crystal separating mechanism further comprises a liquid return pipe, one end of the liquid return pipe is communicated with the liquid return port, and the other end of the liquid return pipe is communicated with an outlet of the reflux pump.
8. The low temperature evaporation apparatus for wastewater treatment as set forth in claim 1, further comprising a compressor and a drum evaporator, an inlet of said compressor being in communication with an outlet of said negative pressure pump, an outlet of said compressor being in communication with an inlet of said drum evaporator.
9. The low-temperature evaporation device for wastewater treatment as claimed in claim 1, wherein a liquid outlet communicated with the evaporation cavity is further formed at the lower end of the evaporation shell;
the low-temperature evaporation device for wastewater treatment further comprises a centrifugal machine, and an inlet of the centrifugal machine is communicated with the liquid outlet.
10. A low temperature evaporation apparatus for wastewater treatment according to claim 9, wherein the inlet of said centrifuge and said drain outlet communicate via a drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221457476.4U CN218025489U (en) | 2022-06-09 | 2022-06-09 | Low-temperature evaporation device for wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221457476.4U CN218025489U (en) | 2022-06-09 | 2022-06-09 | Low-temperature evaporation device for wastewater treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218025489U true CN218025489U (en) | 2022-12-13 |
Family
ID=84376580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221457476.4U Active CN218025489U (en) | 2022-06-09 | 2022-06-09 | Low-temperature evaporation device for wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218025489U (en) |
-
2022
- 2022-06-09 CN CN202221457476.4U patent/CN218025489U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101125281A (en) | Immersion type hollow fiber membrane separator and its running process | |
| CN100438945C (en) | Press filtration type water purification method and device therefor | |
| CN106277608B (en) | A kind of sewage-treatment plant with rainwater-collecting | |
| CN109011668A (en) | A kind of crystal salt system for separating and purifying based on high slat-containing wastewater | |
| CN201713402U (en) | Full-automatic water purifier | |
| CN115403203A (en) | High-reliability seawater desalination device | |
| CN218025489U (en) | Low-temperature evaporation device for wastewater treatment | |
| CN201350354Y (en) | Evaporated crystallizer | |
| CN219922333U (en) | Built-in filter screen structure of industrial water supply system | |
| CN101874983B (en) | Method and device for evaporation concentration of depressurized membrane | |
| CN101424497B (en) | Recovery plant for waste water heat energy | |
| CN216039102U (en) | High salt waste water degree of depth concentrated processing system | |
| CN206109092U (en) | Concentrated decrement processing apparatus of high salt waste water membrane | |
| CN111871210B (en) | Tubular membrane recycling system, method and application of hot water in thickened oil steam flooding | |
| CN212282944U (en) | Condensate water recovery system | |
| CN210481018U (en) | Automatic drainage device for chemical product circulating water purification | |
| CN208414117U (en) | A kind of chemical plant sewage separating device | |
| CN208104125U (en) | A kind of cobalt-containing wastewater processing system | |
| CN209143891U (en) | Sewage clears up environmental protecting device | |
| CN109987769A (en) | Power plant desulfurization wastewater negative pressure low-temperature evaporation concentration systems and technique | |
| CN107162080B (en) | Vaporization system | |
| CN213245238U (en) | Waste water recycling system of injection water preparation process | |
| CN108970234A (en) | A kind of photovoltaic laminating machine pumping fluid filtration system | |
| CN218755105U (en) | Waste water salt dissolving, separating and collecting equipment | |
| CN211367287U (en) | Sewage treatment device of glass tube production equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |