CN206872473U - A kind of Waste Water Treatment with buffer unit - Google Patents
A kind of Waste Water Treatment with buffer unit Download PDFInfo
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- CN206872473U CN206872473U CN201720779934.9U CN201720779934U CN206872473U CN 206872473 U CN206872473 U CN 206872473U CN 201720779934 U CN201720779934 U CN 201720779934U CN 206872473 U CN206872473 U CN 206872473U
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Abstract
The utility model discloses a kind of Waste Water Treatment with buffer unit, it is related to field of waste water treatment.The system includes sequentially sequentially connecting sewage pretreatment device, evaporator, circulation crystallization device, crystal filter and dehydration device, also include first-level buffer device and secondary buffer device, first-level buffer device one end and circulation crystallization device diconnected, the other end are connected with evaporator；Secondary buffer device and circulation crystallization device diconnected.The run time accounting that the utility model realizes high-concentration waste water reduces, and reduces plugging, improves the operational efficiency of device.
Description
Technical field
It the utility model is related to field of waste water treatment, more particularly to a kind of Waste Water Treatment with buffer unit.
Background technology
At present, general Waste Water Treatment includes preprocessing subsystem, falling film evaporator, forced circulation crystallizer, crystalline substance
Body filter subsystem and centrifugal dehydration subsystem.Wherein, because the particle size of crystallizer crystallization differs and unstable, therefore it is difficult essence
Really formulate residence time of the crystal in crystallizer.Further, since bulk salt is easily formed in crystallizer, therefore in actual motion often
Plugging phenomenon can occur.And plugging cause the treatment effeciency of whole Waste Water Treatment reduce, energy consumption rise, be unfavorable for saving
Emission reduction.
Utility model content
The purpose of this utility model is to provide a kind of Waste Water Treatment with buffer unit, so as to solve existing skill
Foregoing problems present in art.
To achieve these goals, the Waste Water Treatment described in the utility model with buffer unit, the system bag
Include：Sewage pretreatment device, evaporator, circulation crystallization device, crystal filter, dehydration device, first-level buffer device and two level
Buffer unit；It is the sewage pretreatment device, the evaporator, the circulation crystallization device, the crystal filter, described de-
Water installations sequentially sequentially connect；Described first-level buffer device one end and the circulation crystallization device diconnected, the other end with it is described
Evaporator connects；The secondary buffer device and the circulation crystallization device diconnected；The first-level buffer device and described two
Level buffer unit includes multiple buffers, and the detecting element related to liquid level, the circulation crystallization are set in each buffer
Set and concentration dependent detecting element in device；The system also includes controller, the controller and the center of the system
Controller data communicates to connect, the controller also detecting element related to liquid level and first with concentration dependent detection respectively
Part connects.
Preferably, the outlet of the circulation crystallization device and entrance, the first opening and second of the first-level buffer device are opened
Mouth, secondary buffer device outlet and entrance, the gateway of each buffer are respectively provided with and the controller and control buffering
The power connector that liquid flows in device.
Preferably, the detecting element related to liquid level includes liquid level sensor；It is with the concentration dependent detecting element
One or more in density sensor, conductivity meter and turbidity transducer.
Preferably, the agent structure of the buffer is can-like structure, and observation panel and described is opened up in the can-like structure
Agitating device is set in can-like structure.
Preferably, described first-level buffer device one end and the circulation crystallization device diconnected, the other end and the evaporation
Device connects, and is specially：The outlet of the evaporator and the first opening of the first-level buffer device connect, the circulation crystallization device
The second opening of the first bifurcations and the first-level buffer device connect；
The secondary buffer device and the circulation crystallization device diconnected, it is specially：The second of the circulation crystallization device
Bifurcations are also connected with the entrance of the secondary buffer device, the outlet of the secondary buffer device and entering for the circulation crystallization device
Mouth connection.
The beneficial effects of the utility model are：
The circulation crystallization device of device described in the utility model connects crystal filter, first-level buffer device and two level respectively
Buffer unit, the liquid in two-stage buffer unit are transmitted back to circulation crystallization device, then adjust forced circulation on demand as needed
The working condition of crystallizer, so as to reduce the generation of bulk salt and wall built-up in circulation crystallization device, realization slows down plugging.
The run time accounting that the utility model realizes high-concentration waste water reduces, and reduces plugging, improves the operation of device
Efficiency.Waste water obtains more careful, uniform nucleus, therefore, side described in the utility model by method described in the utility model
Method improves crystallization effect, reduces energy consumption.
Brief description of the drawings
Fig. 1 is the structural representation of the Waste Water Treatment with buffer unit.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing, to this reality
It is further elaborated with new.It should be appreciated that embodiment described herein is only explaining this practicality
It is new, it is not used to limit the utility model.
Embodiment
Reference picture 1, the Waste Water Treatment with buffer unit described in the present embodiment, the system include：Waste water is located in advance
Manage device, evaporator, circulation crystallization device, crystal filter, dehydration device, first-level buffer device and secondary buffer device；Institute
State sewage pretreatment device, the evaporator, the circulation crystallization device, the crystal filter, the dehydration device sequentially
Sequentially connect；Described first-level buffer device one end and the circulation crystallization device diconnected, the other end are connected with the evaporator；
The secondary buffer device and the circulation crystallization device diconnected；The first-level buffer device and the secondary buffer device are equal
Including multiple buffers, the detecting element related to liquid level be set in each buffer, in the circulation crystallization device setting with it is dense
Spend related detecting element；The system also includes controller, and the controller and the central controller data of the system are led to
Letter connection, the controller also the detecting element related to liquid level and are connected with concentration dependent detecting element respectively.
Explanation, which is explained in more detail, is：
In the present embodiment, the outlet of the circulation crystallization device and entrance, the first-level buffer device the first opening and
Second opening, secondary buffer device outlet and entrance, the gateway of each buffer are respectively provided with and the controller and control
The power connector that liquid flows in buffer unit processed.The circulation crystallization device is forced circulation crystallizer.
In the present embodiment, the detecting element related to liquid level includes liquid level sensor；With the concentration dependent detection
Element is the one or more in density sensor, conductivity meter and turbidity transducer.
In the present embodiment, the buffer unit is any type of structure, is crystallized as long as can store by forced circulation
The waste water of device discharge.Preferably, the agent structure of the buffer unit is can-like structure, and sight is opened up in the can-like structure
Cha Kou.Multiple buffers in same one-level buffer unit are connected in parallel.
In the present embodiment, described first-level buffer device one end and the circulation crystallization device diconnected, the other end and institute
Evaporator connection is stated, is specially：The outlet of the evaporator and the first opening of the first-level buffer device connect, the circulation
First bifurcations of crystallizer and the second opening of the first-level buffer device connect；
The secondary buffer device and the circulation crystallization device diconnected, it is specially：The second of the circulation crystallization device
Bifurcations are also connected with the entrance of the secondary buffer device, the outlet of the secondary buffer device and entering for the circulation crystallization device
Mouth connection.
Embodiment 2
The method of wastewater treatment of the Waste Water Treatment with buffer unit, methods described include described in the present embodiment：
S1, start the Waste Water Treatment in addition to first-level buffer device and secondary buffer device, steady-state evaporation to be entered
During the stage, into S2；
S2, in circulation crystallization device carries out crystallization process, following one or more of operating modes be present：
Operating mode one, when the solution characteristics value in circulation crystallization device>During predetermined threshold value K, the liquid in first-level buffer device is controlled
Direction of flow circulation crystallization device；
Operating mode two, when the solution characteristics value in circulation crystallization device<During predetermined threshold value K, the liquid in circulation crystallization device is controlled
Flow to first-level buffer device；
Operating mode three, when the solution characteristics value in circulation crystallization device>During predetermined threshold value M, the liquid in circulation crystallization device is controlled
Flow to secondary buffer device；
Operating mode four, when the solution characteristics value in circulation crystallization device<During predetermined threshold value M, the liquid in circulation crystallization device is controlled
Flow to secondary buffer device；
S3, when the solution characteristics value in circulation crystallization device reaches default crystallization threshold, the outlet of ON cycle crystallizer,
Liquid after concentration sequentially enters crystal filter by circulation crystallization device, dehydration device generation crystallization salts out.
In the present embodiment, the pollution condition for the liquid in L2 cache device being flowed to from circulation crystallization device overweights circulation knot
Brilliant device flows to the pollution condition of the liquid in level cache device.
Explanation is explained in more detail
The detecting element related to liquid level collects the index related with liquid level and sends controller to, foundation and liquid level
Related index, controller obtain the level value of liquid in buffer unit α；
Collected with concentration dependent detecting element and concentration dependent index and send controller to, foundation and concentration
Related index, controller obtain the concentration value of liquid in circulation crystallization device；
Controller is currently calculated the moment from the ambient parameter inside the Waste Water Treatment that central controller obtains；
In buffer unit α in the level value of liquid and circulation crystallization device on the basis of the concentration value of liquid, combining environmental
Parameter, currently calculated the index at moment.
(3) detecting element related to liquid level and with concentration dependent detecting element according to the time interval pre-set
Or study optimized time interval difference liquid level and with concentration dependent characteristic value.
In the present embodiment, detecting element can using densitometer come the density of waste water, so as to calculate corresponding concentration,
Other existing detection techniques such as conductivity meter can be used.
When one-level or secondary buffer device and circulation crystallization device are without liquid communication；It is molten in one-level or two buffer units
Liquid departs from forced circulation crystallizer, into another circulation crystallization state.Because one-level or two slowly the temperature of flushing device, pressure
Power is different from forced circulation crystallizer, and the mechanism of grain growth is different.Art technology engineer select night increase one-level or
The solution amount of storage of two slowly flushing devices, using the low temperature at night, although grain growth speed is slow, it is thin to be advantageous to generation
Cause, uniform nucleus, improve crystallization effect, can also reduce energy consumption in addition.
(4) in the present embodiment, after first flowing through circulation crystallization device due to waste water, after concentration empirical value is reached, open
Beginning is transported to one-level or two slowly deposited in flushing device, is then transported to and is carried out in circulation crystallization device higher than concentration empirical value again
Concentration, therefore, passes through herein described system and method so that in the whole service cycle of circulation crystallization device, high concentration liquid
Run time accounting in crystallizer reduces, and so as to reduce plugging, improves the operational efficiency of system.
More detailed example：
In the application, waste water evaporation technology flow was roughly divided into for three stages：Feeding preheating, steady-state evaporation, parking discharging.
First, feeding preheating：After checking out equipment, start feed pump, charging reaches crystal separator setting value standard liquid level
When, restart forced circulation pump and discharging pump, when device liquid level to be separated is to setting value high level, feed pump is automatically stopped, charging
Complete.The operation such as steam preheating valve, air compressor is progressively opened again, system is entered normal table evaporating state.
2nd, steady-state evaporation：When system is normally evaporated, 44-47Hz of compressor operating FREQUENCY CONTROL or so, operating current
540-570A, 90 DEG C of feeding temperature, separator liquid level 1400mm, forced-circulation evaporator pressure 1250bar or so.Evaporation one
After the section time, observe by the naked eye crystalline particle at separator salt leg visor or observation is sampled by sample tap, there is salt crystallization
Discharged in time during grain.
3rd, parking discharging：Orderly shutdown or because outside cause needs halt system, first stops feeding into system, then go out
Crystallized stock to the greatest extent in salt leg, most laggard running water is to equipment by evaporation flow evaporation cleaning.
First-level buffer device and secondary buffer device in the application make circulation crystallization device only in steady-state evaporation stage running
It is changed into fluctuating running status.
Before wastewater treatment process starts, preset and two threshold values are set：Threshold alpha and threshold value beta, each threshold value are one
The set of index.
Threshold alpha
[circulation crystallization device liquid level：Less than 1200mm, circulation crystallization device electrical conductivity：More than 832S/m, temperature 95-970C, PH
Value 8.31, first-level buffer tank average level：More than 500mm]；
[circulation crystallization device liquid level：More than 1200mm, circulation crystallization device electrical conductivity：Less than 1839S/m, temperature 89-940C,
PH value 8.33, first-level buffer tank average level：Less than 500mm]；
}
Threshold value beta
[circulation crystallization device liquid level：Less than 990mm, circulation crystallization device electrical conductivity：More than 1931S/m, temperature 95-970C, PH
Value 8.23, first-level buffer tank average level：More than 570mm]；
[circulation crystallization device liquid level：More than 990mm, circulation crystallization device electrical conductivity：Less than 1339S/m, temperature 89-940C, PH
Value 8.03, first-level buffer tank average level：Less than 570mm]；
}
As those skilled in the art know：Estimated according to engineering, threshold alpha is equivalent to cocnentration factor 10%, and threshold value beta is equivalent to concentration
Than 30%.In this application, introducing first-level buffer device and secondary buffer device, purpose makes the cocnentration factor of circulation crystallization device in threshold
Value α between threshold value beta fluctuate operation.
When then Waste Water Treatment is run, any one following operating mode be present：
The first operating mode：When the characteristic value of the water quality of circulation crystallization device is less than threshold alpha, the waste water of secondary buffer device is drawn
Enter circulation crystallization device, the characteristic value of the water quality of final circulation crystallization device is more than threshold alpha.Stood through secondary buffer device useless
Crystal grain is uniform in water, improves the waste water crystalline quality of circulation crystallization device.
Second of operating mode：When the characteristic value of the water quality of circulation crystallization device is more than threshold value beta, waste water in circulation crystallization device is introduced
Secondary buffer device.After a period of time, then the waste water introducing circulation crystallization device by first-level buffer device, make final circulation crystallization device
The characteristic value of water quality be less than threshold value beta.
The third operating mode：When the characteristic value of the water quality of circulation crystallization device is between threshold alpha and β, stop buffer unit
Operation.
By using above-mentioned technical proposal disclosed in the utility model, following beneficial effect has been obtained：
The outlet of the circulation crystallization device of device described in the utility model connects crystal filter and buffer unit respectively, delays
Liquid in flushing device is transmitted back to circulation crystallization device as needed, then adjusts the work shape of forced circulation crystallizer on demand
State, so as to reduce the generation of bulk salt and wall built-up in circulation crystallization device, realization slows down plugging.
The run time accounting of the high-concentration waste water of device described in the utility model reduces, and reduces plugging, improves device
Operational efficiency.Waste water obtains more careful, uniform nucleus, therefore, the utility model institute by method described in the utility model
Method is stated to improve crystallization effect, reduce energy consumption.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching should also regard the scope of protection of the utility model.
Claims (5)
1. a kind of Waste Water Treatment with buffer unit, it is characterised in that the system includes：Sewage pretreatment device,
Evaporator, circulation crystallization device, crystal filter, dehydration device, first-level buffer device and secondary buffer device；
The sewage pretreatment device, the evaporator, the circulation crystallization device, the crystal filter, the dehydration dress
Put and sequentially sequentially connect；
Described first-level buffer device one end and the circulation crystallization device diconnected, the other end are connected with the evaporator；It is described
Secondary buffer device and the circulation crystallization device diconnected；
The first-level buffer device and the secondary buffer device include multiple buffers, are set in each buffer and liquid level
Related detecting element, set and concentration dependent detecting element in the circulation crystallization device；
The system also includes controller, and the controller and the central controller data of the system communicate to connect, the control
Device processed also the detecting element related to liquid level and is connected with concentration dependent detecting element respectively.
2. there is the Waste Water Treatment of buffer unit according to claim 1, it is characterised in that the circulation crystallization device
Export with entrance, the first opening of the first-level buffer device and the second opening, secondary buffer device outlet and entrance, often
The gateway of individual buffer is respectively provided with the power connector with liquid flow direction in the controller and control buffer unit.
3. there is the Waste Water Treatment of buffer unit according to claim 1, it is characterised in that described related to liquid level
Detecting element includes liquid level sensor；Described and concentration dependent detecting element is that density sensor, conductivity meter and turbidity pass
One or more in sensor.
4. there is the Waste Water Treatment of buffer unit according to claim 1, it is characterised in that the main body of the buffer
Structure is can-like structure, is opened up in the can-like structure and agitating device is set in observation panel and the can-like structure.
5. there is the Waste Water Treatment of buffer unit according to claim 1, it is characterised in that the first-level buffer device
One end and the circulation crystallization device diconnected, the other end are connected with the evaporator, are specially：
The outlet of the evaporator and the first opening of the first-level buffer device connect, the first branch of the circulation crystallization device
Second opening of mouth and the first-level buffer device connects；
The secondary buffer device and the circulation crystallization device diconnected, it is specially：
Second bifurcations of the circulation crystallization device are also connected with the entrance of the secondary buffer device, the secondary buffer device
Outlet is connected with the entrance of the circulation crystallization device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720779934.9U CN206872473U (en) | 2017-06-29 | 2017-06-29 | A kind of Waste Water Treatment with buffer unit |
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| CN201720779934.9U CN206872473U (en) | 2017-06-29 | 2017-06-29 | A kind of Waste Water Treatment with buffer unit |
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| CN206872473U true CN206872473U (en) | 2018-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001571A1 (en) * | 2017-06-29 | 2019-01-03 | 合众高科（北京）环保技术股份有限公司 | Waste water treatment system with buffering device and waste water treatment method therefor |
-
2017
- 2017-06-29 CN CN201720779934.9U patent/CN206872473U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001571A1 (en) * | 2017-06-29 | 2019-01-03 | 合众高科（北京）环保技术股份有限公司 | Waste water treatment system with buffering device and waste water treatment method therefor |
| US10766788B2 (en) | 2017-06-29 | 2020-09-08 | Aquacell INC. | Waste water treatment system with buffering device and waste water treatment method therefor |
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| GR01 | Patent grant | ||
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Address after: Room 301, Floor 3, Building C15, Phase II, Dongyi International Media Industrial Park, No. 8, Gaojing Wenhuayuan Road, Gaobeidian Township, Chaoyang District, Beijing Patentee after: United Environment (Beijing) Co.,Ltd. Address before: 100027 707, 1, building 66, Chaoyang District, Beijing. Patentee before: HORIZON WATER Co.,Ltd. |
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