CN207143154U - Acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process - Google Patents
Acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process Download PDFInfo
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- CN207143154U CN207143154U CN201721027501.4U CN201721027501U CN207143154U CN 207143154 U CN207143154 U CN 207143154U CN 201721027501 U CN201721027501 U CN 201721027501U CN 207143154 U CN207143154 U CN 207143154U
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Abstract
It the utility model is related to waste gas, solvent recovery field, acetone, the retracting device of diphenyl sulphone (DPS) in specifically a kind of polyether-ether-ketone production process, including acetone distillation still, acetone complete condenser, acetone tail cooler, acetone exhaust gas processing device and the acetone collecting tank being connected respectively with acetone complete condenser and acetone tail cooler bottom being sequentially connected, in addition to diphenyl sulphone (DPS) centrifuge, diphenyl sulphone (DPS) collecting tank, transfer tank, diphenyl sulphone (DPS) distillation still, diphenyl sulphone (DPS) condenser, diphenyl sulphone (DPS) collecting tank, cyclone dust collectors, gas cleaning plant, vavuum pump, the gas-liquid separator being sequentially connected；The utility model farthest reclaims acetone and diphenyl sulphone (DPS), can be back in polyether-ether-ketone production process, both avoids the wasting of resources, reduces production cost again, and can smooth long term running；The utility model technique is simple, easily operated, has very strong practicality for polyether-ether-ketone manufacturing enterprise.
Description
Technical field
It the utility model is related to acetone in waste gas, solvent recovery field, especially polyether-ether-ketone production process, diphenyl sulphone (DPS)
Recovery.
Background technology
At present, domestic and international polyether-ether-ketone production technology uses using diphenyl sulphone (DPS) as solvent more, and 4,4-difluoro benzophenone and right
Benzenediol is raw material, is formed in the presence of potassium carbonate through nucleophilic displacement of fluorine condensation reaction, is production after reaction terminates the characteristics of its product
The doping such as thing, solvent, accessory substance together, solid mixture are formed under normal temperature, after hybrid solid is crushed, with organic solvent third
Ketone washs, and leaches solvent diphenyl sulphone (DPS) during polymerisation, goes out accessory substance villiaumite and oxide spinel potassium etc. with water logging, then through dry
Pure polyether-ether-ketone.
The polyether-ether-ketone material pneumatic containing diphenyl sulphone (DPS) is transported in washing kettle in polyether-ether-ketone washing process, to washing kettle
Middle addition organic solvent-acetone, lead to steam-stirring, after washing a period of time, when diphenyl sulphone (DPS) concentration is close to saturation in acetone, by kettle
Interior acetone is discharged from washing kettle, adds fresh acetone, is carried out second and is washed, washs 5~6 times repeatedly, until certain
Diphenyl sulphone (DPS) content is less than 10ppm in acetone in wash time, then terminates washing of the acetone to diphenyl sulphone (DPS) in polyether-ether-ketone material, then
After acetone is discharged from washing kettle, polyether-ether-ketone material is delivered to from water seed detergent unit, to secondary in polyether-ether-ketone material
Product villiaumite etc. is washed.And in this washing process, often producing 100kg polyether-ether-ketones need to be washed with 7~8 tons of acetone
Wash, if not reclaimed to the acetone of washing kettle discharge, the consumption of acetone and diphenyl sulphone (DPS) is larger, in turn results in polyethers ether
Ketone production cost is higher.
Prior art is carried out in removal process to the acetone in polyether-ether-ketone production process and hexichol sulfoxide solvent, due to washing
Not only contain diphenyl sulphone (DPS) in the acetone of kettle discharge, while also micro villiaumite and sylvite, wherein diphenyl sulphone (DPS), villiaumite, sylvite melt
Point is higher, exists during acetone is reclaimed with solid-state, if being reclaimed from rectifying column to it, diphenyl sulphone (DPS), villiaumite, potassium
Salt can block inner-tower filling material or column plate, substantially reduce the efficiency of tower；Secondly, 379 DEG C of diphenyl sulphone (DPS) boils up till, in removal process
In, thermal source is provided using conventional steam, its temperature is relatively low, it is impossible to rectifying or distillation are carried out to diphenyl sulphone (DPS), do not reach recovery
Purpose.Therefore, acetone, the retracting device of solvent and method in a kind of polyether-ether-ketone production process are developed, reclaims and makes acetone
Reach technical grade standard with diphenyl sulphone (DPS), be technical problem urgently to be resolved hurrily at present.
Utility model content
Technical problem to be solved in the utility model is to provide acetone in a kind of polyether-ether-ketone production process, diphenyl sulphone (DPS)
Retracting device and method, this method is simple to operate, cost is low, and the acetone and diphenyl sulphone (DPS) of recovery reach technical grade standard, are back to
In polyether-ether-ketone production process.
Technical scheme is used by the utility model solves its technical problem：Third in a kind of polyether-ether-ketone production process
The retracting device of ketone, diphenyl sulphone (DPS), including be sequentially connected acetone distillation still, acetone complete condenser, acetone tail cooler, at acetone tail gas
Reason device and the acetone collecting tank being connected respectively with acetone complete condenser and acetone tail cooler bottom, in addition to be sequentially connected
Diphenyl sulphone (DPS) centrifuge, diphenyl sulphone (DPS) collecting tank, transfer tank, diphenyl sulphone (DPS) distillation still, diphenyl sulphone (DPS) condenser, diphenyl sulphone (DPS) collecting tank, whirlwind
Deduster, gas cleaning plant, vavuum pump, gas-liquid separator；The diphenyl sulphone (DPS) centrifuge is connected with acetone distillation still bottom, institute
State diphenyl sulphone (DPS) collection pot bottom and be connected with diphenyl sulphone (DPS) comminutor, the transfer tank top is connected with vavuum pump.
Preferably, the diphenyl sulphone (DPS) centrifuge is connected with acetone distillation still top by pipeline.
Preferably, the diphenyl sulphone (DPS) distillation still bottom is provided with incinerating and treating device.
Acetone, the recovery method of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process, there is provided above-mentioned polyether-ether-ketone produced
The retracting device of acetone, diphenyl sulphone (DPS), comprises the following steps in journey：
(a) acetone containing diphenyl sulphone (DPS), micro villiaumite and sylvite is passed through in acetone distillation still, acetone forms acetone steam
Being condensed into acetone complete condenser, the acetone not being condensed in acetone complete condenser is sent into acetone tail cooler and carries out B-grade condensation,
The gas not being condensed is sent into acetone exhaust gas processing device；The liquid phase acetone condensed out in acetone complete condenser and acetone tail cooler
Acetone collecting tank is sent into, polyether-ether-ketone washing unit is returned and recycles；
(b) acetone not being distilled out in acetone distillation still will with diphenyl sulphone (DPS), villiaumite and sylvite feeding diphenyl sulphone (DPS) centrifuge
Acetone distillation still is returned after acetone removal；And diphenyl sulphone (DPS), villiaumite and sylvite is by vacuum pumping to transfer tank, then it is discharged to hexichol
Sulfone distillation still is melted to diphenyl sulphone (DPS), distilled, and the diphenyl sulphone (DPS) steam being distilled out enters after being sent into the condensation of diphenyl sulphone (DPS) condenser
Diphenyl sulphone (DPS) collecting tank, it is re-fed into recovery after diphenyl sulphone (DPS) comminutor is granulated and is recycled for polyether-ether-ketone synthesis unit；Diphenyl sulphone (DPS)
The villiaumite and sylvite not being vaporized in distillation still are discharged by bottom；Gas is sent after cyclone dust collectors dedusting in diphenyl sulphone (DPS) collecting tank
Enter gas cleaning plant purification.
Preferably, it is negative-pressure operation that described vavuum pump, which is additionally operable to control in diphenyl sulphone (DPS) distillation still still-process, described negative
Press operation pressure is -80~-90kPa；The tail gas after gas cleaning plant purification under conditions of negative-pressure operation is through vacuum simultaneously
Discharged after being pumped into gas-liquid separator gas-liquid separation.
Preferably, the acetone distillation still is heated using steam, and it is 57-59 DEG C to control distillation still bottom temperature, the steaming
Steam pressure≤0.6Mpa.
Preferably, described acetone complete condenser uses normal temperature circulation water cooling, controls acetone complete condenser material outlet temperature
For 30~35 DEG C；The cooling of -25 DEG C of chilled brines of acetone tail cooler use, control acetone tail cooler material outlet temperature be -20~-
18℃。
Preferably, described diphenyl sulphone (DPS) distillation still diphenyl sulphone (DPS) is melted as thermal source using far infrared heater,
Distillation, it is 380~400 DEG C to control diphenyl sulphone (DPS) distillation still bottom temperature.
Preferably, described diphenyl sulphone (DPS) condenser controls diphenyl sulphone (DPS) condenser using conduction oil as cooling medium
Material outlet temperature is 150~155 DEG C；The diphenyl sulphone (DPS) collecting tank chuck, as thermal insulation medium, controls hexichol using conduction oil
Sulfone collecting tank temperature is 150~155 DEG C.
Preferably, the material mode of movement of the diphenyl sulphone (DPS) collecting tank to transfer tank uses vavuum pump vacuum handling, described
Stress control in material conveying process is -75~-80kPa.
The beneficial effects of the utility model are：Acetone and hexichol sulfoxide solvent in polyether-ether-ketone production process of the present utility model
Retracting device and method, farthest reclaim acetone and diphenyl sulphone (DPS), the acetone and diphenyl sulphone (DPS) of recovery and reach technical grade standard,
It can be back in polyether-ether-ketone production process, both avoid the wasting of resources, reduce production cost again, and can long-term smooth fortune
OK；The utility model reduces acetone exhaust gas processing device and villiaumite, the load of sylvite incinerating and treating device, reduces environment dirt
Dye；The utility model technique is simple, easily operated, has very strong practicality for polyether-ether-ketone manufacturing enterprise.
Brief description of the drawings
Fig. 1 is the schematic device of the utility model embodiment；
In figure mark for：1-acetone distillation still, 2-acetone complete condenser, 3-acetone tail cooler, 4-acetone collecting tank,
5-acetone exhaust gas processing device, 6-diphenyl sulphone (DPS) centrifuge, 7-diphenyl sulphone (DPS) collecting tank, 8-transfer tank, the distillation of 9-diphenyl sulphone (DPS)
Kettle, 10-vavuum pump, 11-gas-liquid separator, 12-diphenyl sulphone (DPS) condenser, 13-diphenyl sulphone (DPS) collecting tank, 14-diphenyl sulphone (DPS) are granulated
Machine, 15-incinerating and treating device, 16-cyclone dust collectors, 17-gas cleaning plant.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 1, acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process of the present utility model, bag
Include the acetone distillation still 1 being sequentially connected, acetone complete condenser 2, acetone tail cooler 3, acetone exhaust gas processing device 5 and respectively with
The acetone collecting tank 4 that acetone complete condenser 2 connects with the bottom of acetone tail cooler 3, in addition to be sequentially connected diphenyl sulphone (DPS) centrifuge 6,
Diphenyl sulphone (DPS) collecting tank 7, transfer tank 8, diphenyl sulphone (DPS) distillation still 9, diphenyl sulphone (DPS) condenser 12, diphenyl sulphone (DPS) collecting tank 13, cyclone dust collectors
16th, gas cleaning plant 17, vavuum pump 10, gas-liquid separator 11；The diphenyl sulphone (DPS) centrifuge 6 connects with the bottom of acetone distillation still 1
Connect, the bottom of diphenyl sulphone (DPS) collecting tank 13 is connected with diphenyl sulphone (DPS) comminutor 14, and the top of transfer tank 8 is connected with vavuum pump 10.
The diphenyl sulphone (DPS) centrifuge 6 is connected with the top of acetone distillation still 1 by pipeline.The bottom of diphenyl sulphone (DPS) distillation still 1, which is provided with, burns
Processing unit 15.Diphenyl sulphone (DPS) centrifuge 6 and vavuum pump 10 can match somebody with somebody separate unit or more according to actual treatment amount.
Acetone, the recovery method of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process, there is provided above-mentioned polyether-ether-ketone produced
The retracting device of acetone, diphenyl sulphone (DPS), comprises the following steps in journey：
(a) acetone containing diphenyl sulphone (DPS), micro villiaumite and sylvite is passed through in acetone distillation still 1, acetone forms acetone and steamed
Vapour is condensed into acetone complete condenser 2, and the acetone not being condensed in acetone complete condenser 2 is sent into acetone tail cooler 3 and carries out two level
Condensation, the gas not being condensed are sent into acetone exhaust gas processing device 5；Condensed out in acetone complete condenser 2 and acetone tail cooler 3
Liquid phase acetone is sent into acetone collecting tank 4, returns to polyether-ether-ketone washing unit and recycles；
(b) acetone not being distilled out in acetone distillation still 1 is sent into diphenyl sulphone (DPS) centrifuge 6 with diphenyl sulphone (DPS), villiaumite and sylvite
Acetone distillation still 1 will be returned to after acetone removal；And diphenyl sulphone (DPS), villiaumite and sylvite deliver to transfer tank 8, then blowing by vavuum pump 10
Diphenyl sulphone (DPS) is melted to diphenyl sulphone (DPS) distillation still 9, distilled, it is cold that the diphenyl sulphone (DPS) steam being distilled out is sent into diphenyl sulphone (DPS) condenser 12
Enter diphenyl sulphone (DPS) collecting tank 13 after solidifying, be re-fed into recovery after diphenyl sulphone (DPS) comminutor 14 is granulated and supply polyether-ether-ketone synthesis unit again
Utilize；The villiaumite and sylvite not being vaporized in diphenyl sulphone (DPS) distillation still 9 are discharged by bottom；Gas is through whirlwind in diphenyl sulphone (DPS) collecting tank 13
Gas cleaning plant 17 is sent into after the dedusting of deduster 16 to purify.Diphenyl sulphone (DPS), which is granulated, uses integrated diphenyl sulphone (DPS) comminutor 14, uses mist
Change granulating technique by liquid diphenyl sulphone (DPS) disposal solidifying into requiring particle diameter, the device compared with the flaker that conventional uses,
Not only production run expense is low, environmental pollution is small, and resulting product particle is uniform in size, can direct reuse in polyethers ether
The synthesis unit of ketone.In addition, the diphenyl sulphone (DPS) comminutor 14 is also configured with dust pelletizing system, revolved using primary cyclone and two level
Wind separator, the dust taken out of to air in drying process are handled, separated, and are avoided diphenyl sulphone (DPS) from being granulated and are caused dirt to environment
Dye.
It is negative-pressure operation that described vavuum pump 10, which is additionally operable to control in the still-process of diphenyl sulphone (DPS) distillation still 9, the negative pressure behaviour
It is -80~-90kPa to make pressure；Ensure to include vavuum pump in the still-process of diphenyl sulphone (DPS) distillation still 9 for the vacuum system of negative-pressure operation
10th, cyclone dust collectors 16, gas cleaning plant 17, gas in diphenyl sulphone (DPS) collecting tank 7 is evacuated to by vacuum system by vavuum pump 10,
And then ensure the negative-pressure operation that the still-process of diphenyl sulphone (DPS) distillation still 9 is -80~-90kPa, improve the speed of diphenyl sulphone (DPS) still-process
And efficiency, it in turn ensure that the discharge of uncondensed gas in diphenyl sulphone (DPS) collecting tank 13；Using vacuum system, make diphenyl sulphone (DPS) under negative pressure
Melted, distilled, the boiling point of diphenyl sulphone (DPS) is reduced after decompression, and then improve diphenyl sulphone (DPS) distillation and purification efficiency.
In vacuum, contain diphenyl sulphone (DPS) steam in diphenyl sulphone (DPS) collecting tank 13 in uncondensed gas, vacuum system is
Normal temperature, a small amount of diphenyl sulphone (DPS) steam is condensed into solid in uncondensed gas, can block vavuum pump 10, need to be removed through cyclone dust collectors 16
Solids again through gas cleaning plant 17 purify it is up to standard discharged again after vavuum pump 10 is sent to the gas-liquid separation of gas-liquid separator 11, gas
Liquid send the sewage-treatment plant of PEEK process units to handle in liquid/gas separator 11.
The acetone distillation still 1 is heated using steam, and it is 57-59 DEG C to control distillation still bottom temperature, the steam pressure
≤0.6Mpa.Agitating device, 50~100r/min of control speed of agitator are provided with the acetone distillation still 1.Described acetone is complete
Condenser 2 uses normal temperature circulation water cooling, and it is 30~35 DEG C to control the material outlet temperature of acetone complete condenser 2；Acetone tail cooler 3 is adopted
Cooled down with -25 DEG C of chilled brines, it is -20~-18 DEG C to control the material outlet temperature of acetone tail cooler 3.On this condition, acetone
For the rate of recovery up to more than 90%, purity is 98~99%.
Described diphenyl sulphone (DPS) distillation still 9 is melted to diphenyl sulphone (DPS) as thermal source, distilled using far infrared heater, far
Infrared heating device is divided into two bringing-up sections up and down, can single hop, single group, single-phase adjustment control, the tower reactor of control diphenyl sulphone (DPS) distillation still 9
Temperature is 380~400 DEG C.Described diphenyl sulphone (DPS) condenser 12 is cold as cooling medium, control diphenyl sulphone (DPS) using conduction oil
The material outlet temperature of condenser 12 is 150~155 DEG C；The chuck of diphenyl sulphone (DPS) collecting tank 13 using conduction oil as thermal insulation medium,
It is 150~155 DEG C to control the temperature of diphenyl sulphone (DPS) collecting tank 13.On this condition, the rate of recovery of diphenyl sulphone (DPS) is up to more than 95%, purity
98~99%.
Because diphenyl sulphone (DPS) boiling point is high, when melting, distilling to it, the selection of its supplying heat source is most important.It is usually used in distilling
Or the thermal source of rectifying selects steam more, but steam does not reach the temperature required for this device, and electrical heating is unstable, to distilling
The temperature of journey is rushed larger.Therefore, the utility model has selected far infrared heater to diphenyl sulphone (DPS) distillation still heat supply, the heater
Equipped with thyristor regulating economize on electricity pressure, electric current, can single hop, single group, single-phase adjustment control, and be equipped with PID Intelligent manuals and full-automatic control
Function processed, it is ensured that temperature-controlled precision is ± 1 DEG C, improves the purity of recovery diphenyl sulphone (DPS).
The material mode of movement of the diphenyl sulphone (DPS) collecting tank 7 to transfer tank 8 uses the vacuum handling of vavuum pump 10, by diphenyl sulphone (DPS)
The material such as diphenyl sulphone (DPS), villiaumite and sylvite is delivered to transfer tank 8 in collecting tank 7, the Stress control in the material conveying process for-
75~-80kPa.Diphenyl sulphone (DPS) is conveyed, melted, distilled under negative pressure, reduces the boiling point of diphenyl sulphone (DPS), so as to improve hexichol
Sulfone distillation efficiency.
Embodiment：
As shown in figure 1, acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process, including be sequentially connected
Acetone distillation still 1, acetone complete condenser 2, acetone tail cooler 3, acetone exhaust gas processing device 5 and respectively with acetone complete condenser 2 and
The bottom of acetone tail cooler 3 connection acetone collecting tank 4, in addition to be sequentially connected diphenyl sulphone (DPS) centrifuge 6, diphenyl sulphone (DPS) collecting tank 7,
Transfer tank 8, diphenyl sulphone (DPS) distillation still 9, diphenyl sulphone (DPS) condenser 12, diphenyl sulphone (DPS) collecting tank 13, cyclone dust collectors 16, gas cleaning plant
17th, vavuum pump 10, gas-liquid separator 11；The diphenyl sulphone (DPS) centrifuge 6 is connected with the bottom of acetone distillation still 1, and the diphenyl sulphone (DPS) is received
Collection tank 13 bottom is connected with diphenyl sulphone (DPS) comminutor 14, and the top of transfer tank 8 is connected with vavuum pump 10.The diphenyl sulphone (DPS) centrifuge
6 are connected with the top of acetone distillation still 1 by pipeline.The bottom of diphenyl sulphone (DPS) distillation still 1 is provided with incinerating and treating device 15.Described third
Agitating device is provided with ketone distillation still 1.
Acetone, the recovery method of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process, there is provided above-mentioned polyether-ether-ketone produced
The retracting device of acetone, diphenyl sulphone (DPS), comprises the following steps in journey：
(a) acetone containing diphenyl sulphone (DPS), micro villiaumite and sylvite is passed through in acetone distillation still 1, the acetone distillation still 1
Heated, heated while stirring using steam, 50~100r/min of control speed of agitator；The bottom temperature of acetone distillation still 1 is controlled to be
57-59 DEG C, the steam pressure≤0.6Mpa.Acetone forms acetone steam and condensed into acetone complete condenser 2, and described third
Ketone complete condenser 2 uses normal temperature circulation water cooling, and acetone complete condenser temperature is automatically controlled by the shell side inlet regulating valve of acetone complete condenser 2
Degree, it is 30~35 DEG C to control the material outlet temperature of acetone complete condenser 2；The acetone not being condensed in acetone complete condenser 2 is sent into acetone
Tail cooler 3 carries out B-grade condensation, -25 DEG C of chilled brine coolings of 3 use of acetone tail cooler, -25 DEG C of the shell side use of acetone tail cooler 3
Chilled brine is cooled down, and the temperature of acetone tail cooler 3, the material outlet of control acetone tail cooler 3 are automatically controlled by shell side inlet regulating valve
Temperature is -20~-18 DEG C.The gas not being condensed is sent into after acetone exhaust gas processing device 5 is handled the discharge that is up to state standards；Third
The liquid phase acetone condensed out in ketone complete condenser 2 and acetone tail cooler 3 is sent into acetone collecting tank 4, and purity returns up to more than 90%
Polyether-ether-ketone washing unit recycles；
(b) acetone not being distilled out in acetone distillation still 1 is sent into diphenyl sulphone (DPS) centrifuge 6 with diphenyl sulphone (DPS), villiaumite and sylvite
Acetone distillation still 1 will be returned to after acetone removal；The material such as diphenyl sulphone (DPS), villiaumite and sylvite in diphenyl sulphone (DPS) collecting tank is used into vavuum pump
For 10 vacuum handlings to transfer tank 8, the Stress control in the material conveying process is -75~-80kPa.Diphenyl sulphone (DPS) is discharged to again
Distillation still 9 is melted to diphenyl sulphone (DPS), distilled, and described diphenyl sulphone (DPS) distillation still 9 is using far infrared heater as thermal source pair
Diphenyl sulphone (DPS) is melted, distilled, and far infrared heater is divided into two bringing-up sections up and down, can single hop, single group, single-phase regulation control
System, it is 380~400 DEG C to control the bottom temperature of diphenyl sulphone (DPS) distillation still 9.The diphenyl sulphone (DPS) steam being distilled out is sent into diphenyl sulphone (DPS) condenser
Enter diphenyl sulphone (DPS) collecting tank 13 after 12 condensations, the described shell side of diphenyl sulphone (DPS) condenser 12 is situated between using conduction oil as cooling
Matter, the temperature of diphenyl sulphone (DPS) condenser 12, the material outlet temperature of control diphenyl sulphone (DPS) condenser 12 are automatically controlled by shell side fuel oil feed regulation valve
For 150~155 DEG C；The chuck of diphenyl sulphone (DPS) collecting tank 13 is using conduction oil as thermal insulation medium, control diphenyl sulphone (DPS) collecting tank 13
Temperature is 150~155 DEG C.Feeding diphenyl sulphone (DPS) comminutor 14 enters after diphenyl sulphone (DPS) liquid level is up to 60% in diphenyl sulphone (DPS) collecting tank 13
Row is granulated, and bag is packaged into after granulation, and recovery recycles for polyether-ether-ketone synthesis unit；It is not vaporized in diphenyl sulphone (DPS) distillation still 9
Villiaumite and sylvite are discharged by bottom, and feeding burning disposal fills 15 and puts processing；
The negative-pressure operation that the still-process of diphenyl sulphone (DPS) distillation still 9 is -80~-90kPa is controlled with vavuum pump；Ensure that diphenyl sulphone (DPS) steams
Evaporate in the still-process of kettle 9 includes vavuum pump 10, cyclone dust collectors 16, gas cleaning plant 17 for the vacuum system of negative-pressure operation,
Gas in diphenyl sulphone (DPS) collecting tank 7 is evacuated to by vacuum system by vavuum pump 10, and then ensures the still-process of diphenyl sulphone (DPS) distillation still 9
For -80~-90kPa negative-pressure operation, in vacuum, contain diphenyl sulphone (DPS) in uncondensed gas in diphenyl sulphone (DPS) collecting tank 13
Steam, vacuum system are normal temperature, and a small amount of diphenyl sulphone (DPS) steam is condensed into solid in uncondensed gas, can block vavuum pump 10, need through
Cyclone dust collectors 16 remove solids and purified again through gas cleaning plant 17 up to standard is sent to gas-liquid separator 11 through vavuum pump 10 again
Discharged after gas-liquid separation, liquid send the sewage-treatment plant of PEEK process units to handle in gas-liquid separator 11.
Claims (3)
1. acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process, it is characterised in that including be sequentially connected third
Ketone distillation still, acetone complete condenser, acetone tail cooler, acetone exhaust gas processing device and respectively with acetone complete condenser and acetone tail
Cooler bottom connection acetone collecting tank, in addition to be sequentially connected diphenyl sulphone (DPS) centrifuge, diphenyl sulphone (DPS) collecting tank, transfer tank, two
Benzene sulfone distillation still, diphenyl sulphone (DPS) condenser, diphenyl sulphone (DPS) collecting tank, cyclone dust collectors, gas cleaning plant, vavuum pump, gas-liquid separation
Device；The diphenyl sulphone (DPS) centrifuge is connected with acetone distillation still bottom, and the diphenyl sulphone (DPS) collects pot bottom and is connected with diphenyl sulphone (DPS) granulation
Machine, the transfer tank top are connected with vavuum pump.
2. acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process according to claim 1, its feature exist
In the diphenyl sulphone (DPS) centrifuge is connected with acetone distillation still top by pipeline.
3. acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process according to claim 1, its feature exist
In the diphenyl sulphone (DPS) distillation still bottom is provided with incinerating and treating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027501.4U CN207143154U (en) | 2017-08-16 | 2017-08-16 | Acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027501.4U CN207143154U (en) | 2017-08-16 | 2017-08-16 | Acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process |
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| Publication Number | Publication Date |
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| CN207143154U true CN207143154U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721027501.4U Active CN207143154U (en) | 2017-08-16 | 2017-08-16 | Acetone, the retracting device of diphenyl sulphone (DPS) in a kind of polyether-ether-ketone production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382689A (en) * | 2017-08-16 | 2017-11-24 | 宜宾天原集团股份有限公司 | Acetone, the retracting device of diphenyl sulphone (DPS) and method in a kind of polyether-ether-ketone production process |
-
2017
- 2017-08-16 CN CN201721027501.4U patent/CN207143154U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382689A (en) * | 2017-08-16 | 2017-11-24 | 宜宾天原集团股份有限公司 | Acetone, the retracting device of diphenyl sulphone (DPS) and method in a kind of polyether-ether-ketone production process |
| CN107382689B (en) * | 2017-08-16 | 2023-06-02 | 宜宾天原集团股份有限公司 | Recovery device and method for acetone and diphenyl sulfone in polyether-ether-ketone production process |
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