CN207259309U - Refining of crude phenol phenol wastewater pre-processing device - Google Patents
Refining of crude phenol phenol wastewater pre-processing device Download PDFInfo
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- CN207259309U CN207259309U CN201721235667.5U CN201721235667U CN207259309U CN 207259309 U CN207259309 U CN 207259309U CN 201721235667 U CN201721235667 U CN 201721235667U CN 207259309 U CN207259309 U CN 207259309U
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Abstract
The utility model discloses a kind of refining of crude phenol phenol wastewater pre-processing device, the pre-processing device of the utility model uses two-stage extraction equipment, and the extraction yield of phenol will improve 10~15% compared with single-stage extraction device, ensure that the extraction quality of phenol.Select water tower further to extract the extractant in water, and then reduce the loss of extractant, avoid loss of the extractant in extraction process, ensure that the rate of recovery of extractant, reduce loss of extractant.The water tower reboiler exit of pre-processing device connects out water- to-water heat exchanger, and lower water temperature is 35~40 DEG C, ensures the optimum operation temperature of microwave device.Microwave device can effectively in activated water phenol and other pollutants, the removal rate of phenol and COD are realized up to more than 95%, removal efficiency of the apparatus for electrochemical treatment to phenol and COD is improved, extends the service life of equipment, operating cost is reduced, ensure that the pretreating effect of phenol wastewater.
Description
Technical field
The utility model belongs to refining of crude phenol equipment technical field, and in particular to a kind of refining of crude phenol phenol wastewater pretreatment
Equipment.
Background technology
Contain some water in the raw material of refining of crude phenol, the rate of recovery and recycling quality of crude phenols can be influenced, so needing
By moisture removal in dehydrating tower and rectifying column.The relatively low hydromining of boiling point is gone out using distillation in dehydrating tower and rectifying column, wherein
90% moisture produces in dehydrating tower, and remaining moisture produces in rectifying column.Moisture is during extraction, due to phenols
The volatility of material, the mixture containing a variety of crude phenols such as phenol, xylenol, o-cresol, M-and P-cresols in the water of extraction.Waste water
Amount containing phenol is 40000~60000mg/l, and COD is 100000~150000mg/l.The effluent part can be caused in biochemical sludge
Poison, it is impossible to be directly entered wastewater biochemical processing, it is necessary to can be only achieved the requirement of biochemical treatment water inlet further across pretreatment.
At present, the processing of domestic refining of crude phenol waste water generally carries out dephenolize pretreatment using single-stage extraction method, then is given birth to
Change the method for processing.But there are extractant price is high, loss amount is big, single-stage extraction dephenolization effect is undesirable etc. for this processing mode
Problem, causes Wastewater Pretreatment operating cost height, fluctuation of service, outlet effect undesirable, causes effluent quality to be unable to reach
The requirement of biochemical treatment water inlet.
The content of the invention
Technical problem to be solved in the utility model is：A kind of refining of crude phenol phenol wastewater pre-processing device, energy are provided
Enough improve wastewater treatment quality, reduce loss of extractant, the rate of recovery for improving crude phenols and recycling quality, reduce at phenol wastewater
Manage cost.
In order to solve the above technical problems, the technical solution of the utility model is：Refining of crude phenol phenol wastewater pre-processing device,
Including raw water storage tank, the raw water storage tank is connected by centrifugal pump one with extraction equipment, it is characterised in that the extraction equipment
For two-stage extraction equipment, the extraction equipment includes extractant storage tank, level-one extraction tower and two level extraction tower, the level-one
The upper feed inlet of extraction tower is connected with the raw water storage tank, another feed inlet and the extractant of the level-one extraction tower
Storage tank is connected；The lower part discharge port of the level-one extraction tower is connected with the feed inlet of the two level extraction tower, the two level
The lower part feed inlet of extraction tower is connected with the extractant storage tank, the extractant storage tank and the level-one extraction tower and described
Centrifugal pump three is provided between two level extraction tower；The top of the upper part discharge port of the level-one extraction tower and the two level extraction tower
Discharge port is all connected by centrifugal pump two with extraction phase distilling apparatus；The lower part discharge port of the two level extraction tower passes through centrifugation
Pump five is connected with raffinate phase distilling apparatus；The extraction phase distilling apparatus includes regenerator, the feed inlet of the regenerator with
The centrifugal pump two is connected, and the upper part discharge port of the regenerator is connected with regenerator cooler, under the regenerator
Portion's discharge port is connected with regenerating the feed inlet of tower reboiler；The regenerator cooler is connected with 1# extractant pans,
The discharge port of the 1# extractants pans is connected with the reflux branch of the regenerator and the extractant storage tank respectively,
Vacuum pump is provided with the 1# extractants pans；The raffinate phase distilling apparatus includes water tower, and the water tower passes through described
Centrifugal pump five is connected with the two level extraction tower, and water tower cooler, the water tower cooler are connected with above the water tower
It is connected with 2# extractant pans, the discharge ports of the 2# extractants pans upper return branch with the water tower respectively
And the extractant storage tank is connected；The lower section of the water tower is connected with the feed inlet of water tower reboiler, and the water tower is again
The discharge port of device is boiled respectively with the lower return branch of the water tower and going out water- to-water heat exchanger and being connected；It is described go out water- to-water heat exchanger lead to
Cross centrifugal pump four with microwave device to be connected, the microwave device is connected with apparatus for electrochemical treatment, the electrochemical treatments
Device is connected with production water storage tank.
Further, the level-one extraction tower, the two level extraction tower, the water tower, the tower body of the regenerator are adopted
With the tower body of stainless steel 304 material, the liner of glass-flake coating is provided with the tower body.
By adopting the above-described technical solution, the beneficial effects of the utility model are：
The refining of crude phenol phenol wastewater pre-processing device of the utility model uses two-stage extraction equipment, and the extraction yield of phenol is more single
Level extraction equipment will improve 10~15%, ensure that the extraction quality of phenol.Water tower is selected further to extract the extractant in water, into
And reduce the loss of extractant, loss of the extractant in extraction process is avoided, ensure that the rate of recovery of extractant, is reduced
Loss of extractant.The water tower reboiler exit of pre-processing device connects out water- to-water heat exchanger, and lower water temperature is 35~40 DEG C, is protected
Demonstrate,prove the optimum operation temperature of microwave device.Microwave device can effectively in activated water phenol and other pollutants, realize phenol
Removal rate with COD improves removal efficiency of the apparatus for electrochemical treatment to phenol and COD, extends equipment up to more than 95%
Service life, reduce operating cost, ensure that the pretreating effect of phenol wastewater.
The regenerator of the refining of crude phenol phenol wastewater pre-processing device of the utility model uses vacuum distillation, and absolute pressure is
60KPa, is effectively guaranteed the separation of extractant and crude phenols, ensure that the rate of recovery of crude phenols and extractant, reduce operation into
This, crude phenols improve economic benefit as being sold outside product.
Level-one extraction tower outside the refining of crude phenol phenol wastewater pre-processing device room of the utility model, two level extraction tower, water tower,
The tower body of regenerator uses stainless steel 304 material, and the liner of glass-flake coating is provided with tower body, efficiently avoid phenol
Erosion, extend the service life of equipment.
Brief description of the drawings
Fig. 1 is the structure diagram of the refining of crude phenol phenol wastewater pre-processing device of the utility model；
In figure, the direction of arrow represents the flow direction of material；
In figure, 1- raw water storage tanks, 2- extraction equipments, 21- extractant storage tanks, 22- level-one extraction towers, 23- two level extraction towers,
3- extraction phase distilling apparatus, 31- regenerators, 32- regenerator coolers, 33- vacuum pumps, 34-1# extractant pans, 35- is again
Raw tower reboiler, 36- crude phenols storage tanks, 4- raffinate phase distilling apparatus, 41- water towers, 42- water tower coolers, among 43-2# extractants
Tank, 44- water tower reboilers, 5- go out water- to-water heat exchanger, 6- microwave devices, 7- apparatus for electrochemical treatment, 8- production water storage tanks, 9- centrifugal pumps
One, 10- centrifugal pump two, 11- centrifugal pumps three, 12- centrifugal pumps four, 13- centrifugal pumps five.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
With reference to shown in Fig. 1, a kind of refining of crude phenol phenol wastewater pre-processing device, it includes raw water storage tank 1, raw water storage tank 1
It is connected by centrifugal pump 1 with extraction equipment 2.
Extraction equipment 2 is two-stage extraction equipment, and extraction equipment 2 includes extractant storage tank 21, level-one extraction tower 22 and two
Level extraction tower 23.The upper feed inlet of level-one extraction tower 22 is connected with raw water storage tank 1, the lower part feed inlet of level-one extraction tower 22
It is connected with extractant storage tank 21；The lower part discharge port of level-one extraction tower 22 is connected with the feed inlet of two level extraction tower 23, and two
Another feed inlet of level extraction tower 23 is connected with extractant storage tank 21, and extractant storage tank 21 extracts with level-one extraction tower 22 and two level
Take and be provided with centrifugal pump 3 11 between tower 23；The upper part discharge port of level-one extraction tower 22 and the upper part discharge port of two level extraction tower 23
All it is connected by centrifugal pump 2 10 with extraction phase distilling apparatus 3；The lower part discharge port of two level extraction tower 23 passes through centrifugal pump five
13 are connected with raffinate phase distilling apparatus 4.
Extraction phase distilling apparatus 3 includes regenerator 31, and the feed inlet of regenerator 31 is connected with centrifugal pump 2 10, regenerator
31 upper part discharge port is connected with regenerator cooler 32, the lower part discharge port of regenerator 31 and regeneration tower reboiler 35 into
Material mouth is connected；Regenerator cooler 32 is connected with 1# extractants pans 34, the discharge port point of 1# extractants pans 34
It is not connected with the reflux branch and extractant storage tank 21 of regenerator 31, vacuum pump is provided with 1# extractants pans 34
33。
Raffinate phase distilling apparatus 4 includes the water tower 41 being connected by centrifugal pump 5 13 with two level extraction tower 23, water tower 41
Top be connected with water tower cooler 42, water tower cooler 42 is connected with 2# extractants pans 43,2# extractant pans
43 discharge port is connected with the upper return branch and extractant storage tank 21 of water tower 41 respectively；The lower section of water tower 41 and water tower
The feed inlet of reboiler 44 is connected, the discharge port of water tower reboiler 44 respectively with the lower return branch of water tower 41 and water outlet
Heat exchanger 5 is connected.
Go out water- to-water heat exchanger 5 by centrifugal pump 4 12 with microwave device 6 to be connected, microwave device 6 and apparatus for electrochemical treatment 7
It is connected, apparatus for electrochemical treatment 7 is connected with production water storage tank 8.
In order to strengthen the reliability of pre-processing device work, level-one extraction tower 22, two level extraction tower 23, water tower 41, regeneration
The tower body of tower 31 uses the tower body of stainless steel 304 material, and the liner of glass-flake coating is provided with tower body.
Below to be pre-processed using the refining of crude phenol phenol wastewater pre-processing device of the utility model to phenol wastewater
Process be described in detail it is as follows：
Phenol wastewater from raw water storage tank 1 enters the top of level-one extraction tower 22, extraction under the action of centrifugal pump 1
The extractant of agent storage tank 21 under the action of centrifugal pump 3 11 enter level-one extraction tower 22 lower part, in level-one extraction tower 22 into
Row level-one extracts, and extract remainder enters the top of two level extraction tower 23 from the bottom of level-one extraction tower 22, from extractant storage tank 21
Extractant also can enter two level extraction tower 23 lower part, in two level extraction tower 23 carry out two level extraction.
The extract mixing that the upper part discharge port of upper part discharge port and two level extraction tower 23 from level-one extraction tower 22 is discharged
Enter the top of regenerator 31 afterwards, the separation of extractant and crude phenols is carried out in regenerator 31, regenerator 31 is in vacuum pump 33
Vacuum distillation can be realized under effect, and absolute pressure is 60KPa in the tower body of regenerator 31, and the tower body temperature of regenerator 31 is
180℃.Extractant enters regenerator condensate cooler 32 from the top of regenerator 31, enters after extractant cooling in 1# extractants
Between tank 34, partial extraction agent is back to the top of regenerator 31, and remaining extractant is transported to extractant storage tank 21.From regeneration
The crude phenols of the bottom discharge of tower 31 enter regeneration tower reboiler 35, are partly refluxed to the lower part of regenerator 31, remaining most
Crude phenols enter crude phenols storage tank 36.
Extract remainder enters the top of water tower 41 from the bottom of two level extraction tower 23, carry out waste water and residual extractant into one
Step separation, residual extractant enter water tower condensate cooler 42 from the top of water tower 41, enter 2# extractants after extractant cooling
Pans 43, partial extraction agent are back to the top of water tower 41, and remaining extractant is transported to extractant storage tank 21.Water tower 41
The sewage of bottom enters water tower reboiler 44, is partly refluxed to the lower part of water tower 41, most of by going out water- to-water heat exchanger 5 into a subtle way
Wave apparatus 6.
Waste water enters apparatus for electrochemical treatment 7 after molecular activity is improved in microwave device 6, further removes the phenol in water removal
And COD, go to biochemical treatment workshop section to carry out biochemical treatment after finally entering production water storage tank 8.
Technical characteristic (such as centrifugal pump one, centrifugal pump two, the centrifugal pump with sequence number name arrived involved in this specification
3rd, centrifugal pump four, centrifugal pump five etc.), it is only for each technical characteristic is distinguished, does not represent the position between each technical characteristic
Relation, erection sequence and job order etc..
In the description of this specification, it is to be understood that the side of the description such as " top ", " lower section ", " top ", " lower part "
Position either position relationship be based on orientation shown in the drawings or position relationship, it is only for easy to describe the utility model with
Simplify description, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific azimuth configuration
And operation, therefore it is not intended that limitation to the utility model.
Although the foregoing describing specific embodiment of the present utility model, it should be appreciated by those skilled in the art,
Described embodiment is only the part of the embodiment of the utility model, and instead of all the embodiments, these are only to lift
Example explanation, the scope of protection of the utility model is to be defined by the appended claims.Those skilled in the art is without departing substantially from this
, can be to these embodiments under any performing creative labour of no process on the premise of the principle and essence of utility model
Various changes or modifications are made, but these change and modification each fall within the scope of protection of the utility model.
Claims (2)
1. refining of crude phenol phenol wastewater pre-processing device, including raw water storage tank, the raw water storage tank passes through centrifugal pump one and extraction
Device is connected, it is characterised in that
The extraction equipment is two-stage extraction equipment, and the extraction equipment includes extractant storage tank, level-one extraction tower and two level
Extraction tower, the upper feed inlet of the level-one extraction tower are connected with the raw water storage tank, the level-one extraction tower it is another into
Material mouth is connected with the extractant storage tank；The feed inlet of the lower part discharge port of the level-one extraction tower and the two level extraction tower
Be connected, the lower part feed inlet of the two level extraction tower is connected with the extractant storage tank, the extractant storage tank with it is described
Centrifugal pump three is provided between level-one extraction tower and the two level extraction tower；The upper part discharge port of the level-one extraction tower and described
The upper part discharge port of two level extraction tower is all connected by centrifugal pump two with extraction phase distilling apparatus；Under the two level extraction tower
Portion's discharge port is connected by centrifugal pump five with raffinate phase distilling apparatus；
The extraction phase distilling apparatus includes regenerator, and the feed inlet of the regenerator is connected with the centrifugal pump two, described
The upper part discharge port of regenerator is connected with regenerator cooler, lower part discharge port and the regeneration tower reboiler of the regenerator
Feed inlet is connected；The regenerator cooler is connected with 1# extractant pans, the discharging of the 1# extractants pans
Mouth is connected with the reflux branch of the regenerator and the extractant storage tank respectively, is set on the 1# extractants pans
There is vacuum pump；
The raffinate phase distilling apparatus includes water tower, and the water tower is connected by the centrifugal pump five with the two level extraction tower
Connect, water tower cooler is connected with above the water tower, the water tower cooler is connected with 2# extractant pans, the 2#
The discharge port of extractant pans is connected with the upper return branch of the water tower and the extractant storage tank respectively；It is described
The lower section of water tower is connected with the feed inlet of water tower reboiler, the discharge port of the water tower reboiler respectively with the water tower
Portion, which flows back, branch and to be gone out water- to-water heat exchanger and is connected；
It is described go out water- to-water heat exchanger be connected by centrifugal pump four with microwave device, the microwave device and apparatus for electrochemical treatment phase
Connection, the apparatus for electrochemical treatment are connected with production water storage tank.
2. refining of crude phenol phenol wastewater pre-processing device as claimed in claim 1, it is characterised in that the level-one extraction tower,
The two level extraction tower, the water tower, the tower body of the regenerator use the tower body of stainless steel 304 material, in the tower body
It is provided with the liner of glass-flake coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721235667.5U CN207259309U (en) | 2017-09-25 | 2017-09-25 | Refining of crude phenol phenol wastewater pre-processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721235667.5U CN207259309U (en) | 2017-09-25 | 2017-09-25 | Refining of crude phenol phenol wastewater pre-processing device |
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| CN207259309U true CN207259309U (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721235667.5U Active CN207259309U (en) | 2017-09-25 | 2017-09-25 | Refining of crude phenol phenol wastewater pre-processing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249634A (en) * | 2020-09-24 | 2022-03-29 | 宝武炭材料科技有限公司 | Phenol refining method for low-phenol-content wastewater discharge |
| CN114956395A (en) * | 2021-02-24 | 2022-08-30 | 广州中国科学院沈阳自动化研究所分所 | Device and method for treating high-concentration phenol-containing wastewater by combining centrifugal extraction and electrocatalysis |
-
2017
- 2017-09-25 CN CN201721235667.5U patent/CN207259309U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249634A (en) * | 2020-09-24 | 2022-03-29 | 宝武炭材料科技有限公司 | Phenol refining method for low-phenol-content wastewater discharge |
| CN114956395A (en) * | 2021-02-24 | 2022-08-30 | 广州中国科学院沈阳自动化研究所分所 | Device and method for treating high-concentration phenol-containing wastewater by combining centrifugal extraction and electrocatalysis |
| CN114956395B (en) * | 2021-02-24 | 2023-08-11 | 广州中国科学院沈阳自动化研究所分所 | Device and method for treating high-concentration phenol-containing wastewater by centrifugal extraction and electrocatalytic combination |
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