CN220736373U - Polysulfone product multifunctional centrifugal plate type filter pressing solid-liquid separation device - Google Patents
Polysulfone product multifunctional centrifugal plate type filter pressing solid-liquid separation device Download PDFInfo
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- CN220736373U CN220736373U CN202322105850.5U CN202322105850U CN220736373U CN 220736373 U CN220736373 U CN 220736373U CN 202322105850 U CN202322105850 U CN 202322105850U CN 220736373 U CN220736373 U CN 220736373U
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- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 238000003825 pressing Methods 0.000 title claims abstract description 35
- 238000000926 separation method Methods 0.000 title claims abstract description 32
- 229920002492 poly(sulfone) Polymers 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 20
- 239000000047 product Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 11
- 239000007787 solid Substances 0.000 abstract description 10
- 239000000706 filtrate Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000004321 preservation Methods 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 238000004062 sedimentation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 229920000491 Polyphenylsulfone Polymers 0.000 description 1
- 229920006127 amorphous resin Polymers 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000008259 solid foam Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Centrifugal Separators (AREA)
Abstract
The utility model discloses a multifunctional centrifugal plate type filter pressing solid-liquid separation device for polysulfone products, which comprises a high-pressure pump, a container body, a rotor arranged in the container body and a plate type filter pressing mechanism arranged in the rotor, wherein the high-pressure pump is communicated with the container body through a feed inlet, a clear liquid outlet is further formed in the bottom of the container body, the plate type filter pressing mechanism is provided with a filter pressing liquid outlet, the rotor is a rotatable rotary drum with filter holes in the bottom and the side wall, and a scraper is further arranged in the container body and is close to the inner wall of the rotor. The utility model solves the problem that solid and liquid are difficult to separate in the existing production process, realizes heat preservation and heat tracing, ensures the reduction of the viscosity of materials, is based on centrifugal mode for rapid solid and liquid separation, and then carries out plate-type circulating filtration until filtrate reaches the requirement of discharging the filtering equipment, and simultaneously, hot solvent is added to bubble and strip the solid to obtain the product in the original liquid, thereby ensuring the yield of the product.
Description
Technical Field
The utility model belongs to the technical field of chemical production equipment, and particularly relates to a multifunctional solid-liquid separation device suitable for high-viscosity superfine powder.
Background
Polysulfone, polyethersulfone, polyphenylsulfone and the like are high molecular polymers, and are amorphous and thermoplastic resins. The characteristics are as follows: the polysulfone has excellent mechanical properties, high rigidity, wear resistance, high strength and the like, and is widely applied to high-end field materials such as membrane-grade materials, medical devices, aerospace, electronics and the like due to good characteristics.
Currently, the most advanced production process of polysulfone polymer materials is a one-step synthesis method. After the polymerization reaction is completed, a low-moisture solvent identical to the polymerization reaction solvent is added to the polymerization vessel for lowering the reaction temperature and terminating the polymerization reaction while reducing the viscosity of the polymerization solution. At this point, the viscosity of the diluted polymerization solution is still great and the temperature needs to be maintained at 100-140 ℃. Then the diluted solution enters solid-liquid separation equipment through a kettle bottom pipeline, and byproducts, unreacted salifying agent and mechanical impurities of the reaction are removed by filtration.
However, in this case, since the polymerization liquid has a great viscosity change due to a decrease in temperature, heat preservation or heat tracing is required during solid-liquid separation, and the polymerization liquid system contains ultrafine powder, and the sedimentation rate is low, and continuous, closed, nitrogen-protected, and solid bubbling and washing processes are required.
At present, the traditional solid-liquid separation equipment is mainly divided into: centrifugal filtration, suction filtration, filter pressing, plate filtration, plate frame filtration and three-in-one machine. Centrifugal filtration is the fastest way of solid-liquid separation, and the centrifugal way is divided into a horizontal sedimentation centrifuge and a horizontal sedimentation centrifuge, so that the solid content requirement is higher, the material viscosity is low, the solid sedimentation is fast, the material temperature cannot exceed 90 ℃, the moisture content of filter residues is too high, and the process material can not meet the use requirement of the horizontal sedimentation centrifuge; superfine powder is easy to block a filter screen of a horizontal centrifuge and a flat centrifuge, and the solid foam washing can not meet the use requirement; the suction filtration and the filter pressing have superfine powder which is easy to block a filter screen; the plate type filtration needs repeated filtration, the filtration rate is slow, residual liquid exists, the residual liquid contains solids, and complete solid-liquid separation cannot be achieved; the filtering area of the plate frame is large, and the heat preservation and heat tracing are difficult to implement; the solid-liquid separation equipment of the three-in-one machine adopts pressurization or vacuumizing in the filtering process, and a filter screen which is easy to be blocked by superfine powder cannot meet the process requirement. Therefore, it is necessary to develop a multifunctional solid-liquid separation device suitable for high viscosity, superfine powder and high heat preservation.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides a multifunctional centrifugal plate type filter pressing solid-liquid separation device for polysulfone products.
In order to solve the technical problems, the utility model adopts the following technical scheme: a multifunctional centrifugal plate type filter-pressing solid-liquid separation device for polysulfone products comprises a high-pressure pump, a container body, a rotor arranged in the container body and a plate type filter-pressing mechanism arranged in the rotor,
the high-pressure pump is communicated with the container body through the feed inlet, a clear liquid outlet is further formed in the bottom of the container body, a filter pressing liquid outlet is formed in the plate filter pressing mechanism, the rotor is a rotatable rotary drum with filter holes formed in the bottom and the side wall, a scraper is further arranged in the container body, and the scraper is close to the inner wall of the rotor.
Preferably, the filter press filter further comprises a circulating pump communicated with the filter press liquid outlet, and the circulating pump is communicated with the feed inlet through a pipeline pump. When the filter pressing is carried out in the final stage of separation, the filtrate in the whole separation equipment is circulated through the filter disc through the circulating pump until the solid forms a stable filter layer on the filter disc completely, the filtrate can be treated by 100 percent, no filtrate remains, and the product yield is improved.
Preferably, a siphon tube is arranged between the rotor and the container body. The scraper is of a hollow structure, a communicating siphon pipe is assembled, and the other end of the siphon pipe is communicated with the container body. And after the press filtration is completed, opening siphon control to ensure that filtered clear liquid in the rotary drum is discharged from the press filtration liquid outlet through siphon.
Preferably, the bottom cross section of the rotor is W-shaped.
Preferably, the plate filter pressing mechanism comprises a rotating shaft and a plurality of layers of filter plates arranged on the rotating shaft, the rotating shaft and the plurality of layers of filter plates are hollow, the filter plates are provided with filter holes, and the filter plates are communicated with the rotating shaft and then connected with a filter pressing liquid outlet.
Compared with the prior art, the utility model solves the problem that solid and liquid are difficult to separate in the existing production process. The combination of multiple filtration forms satisfies the requirement of production quality, the filtration equipment can keep warm and heat up to ensure the reduction of the viscosity of the material, firstly, the centrifugal mode of the fastest solid-liquid separation is selected, a large amount of materials are subjected to fast solid-liquid separation, then the materials are subjected to plate-type circulating filtration until the filtrate reaches the requirement to be discharged out of the filtration equipment, and meanwhile, hot solvent is added to carry out bubble elution on the solid to obtain the product in the original liquid, so that the yield of the product is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. Wherein:
FIG. 1 is a schematic structural diagram of a multifunctional centrifugal plate type filter pressing solid-liquid separation device for polysulfone products.
The high-pressure pump 1, the container body 2, the rotor 3, the feed inlet 4, the rotating shaft 5, the filter plate 6, the scraper 7, the siphon 8, the clear liquid outlet 9, the filter pressing liquid outlet 10 and the circulating pump 11.
Description of the embodiments
The utility model is further elucidated below in connection with the drawings and the specific embodiments. It is to be understood that these examples are for illustrative purposes only and not for limiting the scope of the utility model, and that various equivalent modifications to the utility model will fall within the scope of the claims appended hereto, as viewed by a person skilled in the art.
The traditional single solid-liquid separation equipment is difficult to meet the production process of the technology. The superfine powder aiming at polysulfone products has too high difficulty in selecting a filter screen, the mesh number of the filter screen is too high, the filter screen is easy to block due to the influence of the superfine powder on the filtering speed, so that the filtering is difficult to continue, the production efficiency is reduced, and the solid-liquid separation cannot be completely realized due to the too low mesh number of the filter screen; the traditional separation equipment can only realize external heat preservation, and the viscosity is easy to influence on temperature-sensitive materials, so that the solid-liquid separation is hindered, and the production efficiency is reduced.
As shown in FIG. 1, the multifunctional centrifugal plate type filter pressing solid-liquid separation device for polysulfone products mainly comprises a high-pressure pump, a circulating pump, a scraper, a container body, a rotor arranged in the container body and a plate type filter pressing mechanism arranged in the rotor, wherein: the rotor is a rotatable drum with filter holes on the bottom and the side walls, and the bottom of the drum is designed into a W shape. The bottom and the top of the container body are respectively provided with a clear liquid outlet and a feed inlet, and the high-pressure pump is communicated with the container body through the feed inlet.
The plate type filter pressing mechanism comprises a rotating shaft and a plurality of layers of filter plates arranged on the rotating shaft, the rotating shaft and the inside of the plurality of layers of filter plates are of hollow structures, the rotating shaft is hollow and is used as a collecting pipe to be communicated with the hollow inside of the circular multi-layer filter plates, filter holes are formed in the filter plates, filtered water can pass through the filter holes and then is discharged through the rotating shaft, a filter pressing liquid outlet is formed in the bottom of the rotating shaft, and the scraper is close to the inner wall of the rotor.
The device is suspended, and the rotating shaft drives the rotor to rotate, so that centrifugal solid-liquid separation is realized; the filter disc is connected with the rotating shaft, the hollow part is formed, and the filtrate passes through the hollow pipe diameter to the filter pressing liquid outlet; the filter discs can be selectively used as disc type resistance heating devices, and the number of the heating discs is specifically selected according to the material properties and the equipment size;
in the conventional filter pressing and the final separation stage, when the filtrate just fills the whole space of the equipment, and when the filtrate liquid level is lower than the highest filter disc, a channel shortcut exists, and the filter pressing cannot be performed;
after solid-liquid separation, filling the equipment with corresponding solvent (heatable) inclined filter layers; after the filter layers are cleaned, the bottom closing cover is opened, the filter layers formed in the rotor are discharged by the scraper, and filter residues on the filter discs are centrifugally discharged by the centrifuge.
Claims (5)
1. A polysulfone product multifunctional centrifugal plate type filter pressing solid-liquid separation device is characterized in that: comprises a high-pressure pump, a container body, a rotor arranged in the container body and a plate-type filter pressing mechanism arranged in the rotor,
the high-pressure pump is communicated with the container body through the feed inlet, a clear liquid outlet is further formed in the bottom of the container body, a filter pressing liquid outlet is formed in the plate filter pressing mechanism, the rotor is a rotatable rotary drum with filter holes formed in the bottom and the side wall, a scraper is further arranged in the container body, and the scraper is close to the inner wall of the rotor.
2. The multi-functional centrifugal plate type filter pressing solid-liquid separation device of polysulfone product according to claim 1, wherein: the filter press also comprises a circulating pump communicated with the filter press liquid outlet, and the circulating pump is communicated with the feed inlet through a pipeline pump.
3. The multi-functional centrifugal plate type filter pressing solid-liquid separation device of polysulfone product according to claim 1, which is characterized in that: a siphon pipe is arranged between the rotor and the container body.
4. The multi-functional centrifugal plate type filter pressing solid-liquid separation device of polysulfone product according to claim 1, wherein: the plate type filter pressing mechanism comprises a rotating shaft and a plurality of layers of filter plates arranged on the rotating shaft, the rotating shaft and the plurality of layers of filter plates are hollow, filter holes are formed in the filter plates, and the filter plates are communicated with the rotating shaft and then connected with a filter pressing liquid outlet.
5. The multi-functional centrifugal plate type filter pressing solid-liquid separation device of polysulfone product according to claim 1, wherein: the cross section of the bottom of the rotor is W-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322105850.5U CN220736373U (en) | 2023-08-07 | 2023-08-07 | Polysulfone product multifunctional centrifugal plate type filter pressing solid-liquid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322105850.5U CN220736373U (en) | 2023-08-07 | 2023-08-07 | Polysulfone product multifunctional centrifugal plate type filter pressing solid-liquid separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220736373U true CN220736373U (en) | 2024-04-09 |
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ID=90553065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322105850.5U Active CN220736373U (en) | 2023-08-07 | 2023-08-07 | Polysulfone product multifunctional centrifugal plate type filter pressing solid-liquid separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220736373U (en) |
-
2023
- 2023-08-07 CN CN202322105850.5U patent/CN220736373U/en active Active
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