CN115155314A - Membrane filtration equipment of polyphenylene sulfide separation device and regeneration method thereof - Google Patents
Membrane filtration equipment of polyphenylene sulfide separation device and regeneration method thereof Download PDFInfo
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- CN115155314A CN115155314A CN202210917121.7A CN202210917121A CN115155314A CN 115155314 A CN115155314 A CN 115155314A CN 202210917121 A CN202210917121 A CN 202210917121A CN 115155314 A CN115155314 A CN 115155314A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
- C08G75/0204—Polyarylenethioethers
- C08G75/0277—Post-polymerisation treatment
- C08G75/0281—Recovery or purification
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/32—By heating or pyrolysis
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Abstract
The invention discloses a membrane filtration device of a polyphenylene sulfide separation device, which comprises: a tank body; the bottom plate is used for sealing the bottom of the tank body; the bottom ring is horizontally arranged in the tank body; a first liquid outlet pipe; a second liquid outlet pipe; the filtering membrane frame is arranged in the tank body, a plurality of filtering membrane pipes are arranged in the filtering membrane frame, the upper part of the filtering membrane frame is in lap joint with the opening end of the tank body, and the lower end of the filtering membrane frame is abutted against the bottom ring; the top cover is used for sealing the openings at the top of the filtering membrane frame and the tank body; the top cover is provided with a liquid inlet pipe. The regeneration method comprises the following steps of taking out the filtering membrane tube, putting the filtering membrane tube into a heating furnace for step heating combustion treatment, and cleaning the filtering membrane frame subjected to high-temperature combustion treatment with water. The invention can rapidly detach and install all inorganic membrane filtering membrane tubes from the filtering device, can reduce the difficulty of detaching the inorganic membrane filtering membrane tubes, improves the efficiency of replacing and regenerating the filtering membrane tubes and reduces the influence on production; the regeneration method can effectively regenerate the inorganic membrane filtration membrane tube, realize repeated utilization for many times and reduce the production cost.
Description
Technical Field
The invention relates to the field of chemical equipment, in particular to membrane filtration equipment of a polyphenylene sulfide separation device and a regeneration method thereof.
Background
The polyphenylene sulfide liquid contains impurities such as salt and polyphenylene sulfide byproducts, and the salt and the polyphenylene sulfide byproducts can be recycled, so that the salt and the polyphenylene sulfide byproducts in the polyphenylene sulfide liquid need to be separated, the conventional separation mode is inorganic membrane filtration separation at present, and in order to improve the filtration separation effect, a plurality of inorganic membrane filtration membrane tubes are usually required to be arranged in a filter device one by one, so that the plurality of inorganic membrane filtration membrane tubes work simultaneously, and a large amount of rapid filtration is realized.
After the inorganic membrane filtering membrane tube is used for a period of time, the filtering performance of the inorganic membrane filtering membrane tube is obviously reduced, the inorganic membrane filtering membrane tube needs to be replaced or regenerated at the moment, the inorganic membrane filtering membrane tube needs to be taken out of the filtering device after being replaced or regenerated, the inorganic membrane filtering membrane tube is fixed in the filtering device through one-to-one insertion of the existing filtering device, and therefore the inorganic membrane filtering membrane tubes need to be detached from the filtering device one by one. Because inorganic membrane filtration membrane pipe is located filter equipment, therefore comparatively inconvenient when dismantling one by one, cause and dismantle inefficiency, seriously influence production efficiency.
After the inorganic membrane filtering membrane tube is used for a period of time, the filtering holes of the inorganic membrane filtering membrane tube are blocked, and meanwhile, due to the product characteristics of polyphenylene sulfide byproducts, the conventional inorganic membrane filtering membrane tube regeneration mode cannot realize effective regeneration of the inorganic membrane filtering membrane tube and only can replace the inorganic membrane filtering membrane tube.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the present invention aims to provide a membrane filtration apparatus of a polyphenylene sulfide separation device and a regeneration method thereof, which can rapidly detach and install all inorganic membrane filtration membrane tubes from a filtration device, can reduce the difficulty of detaching the inorganic membrane filtration membrane tubes, improve the efficiency of replacing and regenerating the filtration membrane tubes, and reduce the influence on production; the regeneration method can effectively regenerate the inorganic membrane filtration membrane tube, realize repeated utilization for many times and reduce the production cost.
The purpose of the invention is realized by the following technical scheme:
polyphenylene sulfide separator membrane filtration equipment, its characterized in that includes:
a tank body in a cylindrical shape;
the bottom plate is arranged at the bottom of the tank body, is connected with the flange of the tank body and seals the bottom of the tank body;
the bottom ring is horizontally arranged in the tank body;
the first liquid outlet pipe is communicated with the tank body and is positioned at the upper part of the bottom ring;
the second liquid outlet pipe is communicated with the tank body and is positioned at the lower part of the bottom ring;
the filtering membrane frame is arranged in the tank body, a plurality of filtering membrane pipes are arranged in the filtering membrane frame, the upper part of the filtering membrane frame is in lap joint with the opening end of the tank body, the lower end of the filtering membrane frame is abutted against the bottom ring, and the tank body is divided into an upper space and a lower space by the bottom ring; the top of the filtering membrane frame is provided with a plurality of lifting rings;
the top cover is arranged on the filtering membrane frame and seals the filtering membrane frame and the opening at the top of the tank body; is in seamless communication with the top end of the tank body; the top cover is provided with a liquid inlet pipe.
Further, the filtration membrane holder comprises:
the diameter of the upper top plate is larger than the inner diameter of the tank body, the upper top plate is positioned between the tank body and the top cover, and a plurality of through holes are formed in the upper top plate; the upper end of the filtering membrane tube is positioned in the through hole, and the outer side surface of the filtering membrane tube is sealed with the upper top plate; the lower surface of the upper top plate is provided with a plurality of guide pipes corresponding to the through holes, and the inner diameter of each guide pipe is equal to the outer diameter of the filtering membrane pipe;
the diameter of the lower pressing plate is larger than the inner diameter of the bottom ring, and the lower surface of the lower pressing plate is abutted against the upper surface of the bottom ring for seamless sealing; the lower pressing plate is provided with a plurality of through holes corresponding to the through holes on the upper top plate; the lower end of the filtering membrane tube is positioned in the through hole, and the outer side surface of the filtering membrane tube is sealed with the lower pressing plate; a plurality of limiting pipes corresponding to the through holes are arranged on the upper surface of the lower pressing plate, and the inner diameters of the limiting pipes are equal to the outer diameter of the filtering membrane pipe;
the connecting rods are vertically arranged, and two ends of the connecting rods are respectively connected with the lower surface of the upper top plate and the upper surface of the lower pressing plate; one end of the connecting rod is fixedly connected with the lower pressing plate, and the other end of the connecting rod is connected with the upper top plate through a bolt.
Furthermore, the upper end and the lower end of the filtering membrane tube are seamlessly and fixedly connected with the upper top plate and the lower pressing plate through the pressing sealing pieces; the compression seal includes:
the deformation compression ring is arranged on the end surface of the filtering membrane tube; the outer diameter of the pressure ring is equal to the outer diameter of the filtering membrane tube, and the inner diameter of the pressure ring is smaller than the inner diameter of the filtering membrane tube;
the sealing ring is coaxially arranged outside the through hole or the through hole, is positioned on the upper surface of the upper top plate or the lower surface of the lower pressing plate and is in contact with the deformation pressing ring, and the inner diameter of the sealing ring is equal to that of the deformation pressing ring;
the fixing ring is coaxially arranged with the sealing ring and is positioned on the outer side surface of the sealing ring, and the inner diameter of the fixing ring is equal to that of the deforming compression ring; the fixing ring is fixed on the upper top plate or the lower pressing plate through a screw;
and the filtering membrane tubes are respectively fixedly sealed by the compression sealing elements on the upper top plate and the lower pressing plate.
Further, a first sealing ring is arranged on the upper surface of the bottom ring; the lower surface of the upper top plate is sealed with the opening end face of the tank body through a second sealing ring; the first sealing ring and the second sealing ring are both made of elastic deformation materials; the upper ring surface and the lower ring surface of the first sealing ring and the second sealing ring are respectively provided with a plurality of convex rings surrounding the circle centers of the first sealing ring and the second sealing ring.
The regeneration method of the membrane filtering equipment of the polyphenylene sulfide separation device comprises the following steps:
s1, separating a top cover from a tank body, taking out a filtering membrane frame, and taking out a filtering membrane pipe;
s2, placing the filtering membrane tube into a heating furnace for step heating combustion treatment;
and S3, cleaning the filter membrane frame subjected to high-temperature combustion treatment with water.
Further, in the step S1, before the filtering membrane frame is taken out, clean water is injected into the filtering membrane frame through the first liquid outlet pipe for backwashing;
in the step S1, after the filtration membrane tube is taken out, the surface and the inside of the filtration membrane tube are air-dried.
Further, the step S2 includes the steps of:
s21, vertically and alternately placing the filtering membrane tubes in a heating furnace, wherein the filtering membrane tubes are kept through;
s22, raising the temperature of the heating furnace to 110-130 ℃, wherein the raising rate is 25-40 ℃ per hour, and the temperature in the heating furnace is kept for 1-2 hours after reaching 110-130 ℃;
s23, raising the temperature of the heating furnace from 110-130 ℃ to 280-300 ℃, wherein the raising rate is 40-50 ℃ per hour, and the temperature in the heating furnace is kept for 3-4 hours after reaching 280-300 ℃;
s24, raising the temperature of the heating furnace from 280-300 ℃ to 400-420 ℃, wherein the raising rate is 30-35 ℃ per hour, and the temperature in the heating furnace is maintained for 3-4 hours after reaching 400-420 ℃;
s25, raising the temperature of the heating furnace from 400-420 ℃ to 470-500 ℃, wherein the raising rate is 10-15 ℃ per hour, and the temperature in the heating furnace is kept for 5-6 hours after reaching 470-500 ℃;
s26, naturally cooling the heating furnace, and taking out the filtering membrane tube.
Further, continuously injecting fresh air into the bottom in the heating furnace in the heating process of the heating furnace; the injection volume of the fresh air is 0.1 to 0.2 times of the space in the heating furnace per hour.
Further, after the step S2 and before the step S3, the filtering membrane tube is mounted in the filtering membrane holder, the filtering membrane holder is mounted in the tank body, and the blowing and flushing treatment is performed, specifically including the following steps:
SC1, installing a top cover, sealing the liquid inlet pipe, and opening a second liquid outlet pipe;
SC2, injecting filtered clean high-pressure gas into the tank body through the first liquid outlet pipe;
SC3, open first drain pipe, inject into the clean high-pressure gas after filtering through the second drain pipe to jar internal injection.
Further, the step S3 includes the steps of:
s31, mounting the filter membrane tube subjected to combustion treatment into a filter membrane frame, and mounting the filter membrane frame into a tank body;
s32, mounting a top cover, and opening the first liquid storage pipe and the second liquid outlet pipe;
s32, injecting high-pressure clean high-temperature water into the tank body through the liquid inlet pipe, wherein the temperature of the clean high-temperature water is 80-95 ℃.
By adopting the technical scheme, the invention has the following advantages:
the filtering membrane pipe is arranged in the tank body through the filtering membrane frame, and is not directly fixed with the tank body, so that the operation in the tank body can not be directly performed when the filtering membrane pipe is detached, and the detachment difficulty is reduced. Simultaneously can once only be quick through filtering the membrane frame and tear open all filtration membrane pipes and install jar internally, reduce and disassemble jar body and lead to the time of production interrupt, improve production efficiency.
According to the actual filtration condition of the inorganic filtration membrane tube on the polyphenylene sulfide liquid, the staged heating combustion treatment is adopted, impurities and waste materials blocked in the inorganic filtration membrane tube are subjected to combustion treatment, and powder formed by combustion is cleaned to recover the filtration performance of the inorganic filtration membrane tube, so that the maintenance cost is lower compared with that of replacing a new inorganic filtration membrane tube.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The drawings of the invention are illustrated below:
FIG. 1 is a schematic sectional view showing the membrane filtration apparatus of the polyphenylene sulfide separation device and the regeneration method thereof in the embodiment.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of B in fig. 1.
FIG. 4 is a schematic view of the section C-C in FIG. 1.
FIG. 5 is a schematic view of the section D-D in FIG. 1.
FIG. 6 is a schematic flow chart of a membrane filtration apparatus regeneration method of a polyphenylene sulfide separation device in an embodiment.
In the figure: 11. a tank body; 12. a base plate; 2. a bottom ring; 3. a first liquid outlet pipe; 4. a second liquid outlet pipe; 51. an upper top plate; 511. perforating; 512. a guide tube; 52. pressing the plate downwards; 521. a through hole; 522. a limiting pipe; 6. filtering the membrane tube; 7. a top cover; 71. a liquid inlet pipe; 81. deforming the compression ring; 82. a seal ring; 83. a fixing ring; 9. a connecting rod; 10. a first seal ring; 101. a second seal ring; 200. a lifting ring.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the drawings.
The embodiment is as follows:
as shown in fig. 1 to 5, a membrane filtration apparatus of a polyphenylene sulfide separation device and a regeneration method thereof includes:
a tank body in a cylindrical shape;
the bottom plate 12 is arranged at the bottom of the tank body 11, is connected with the tank body 11 through a flange and seals the bottom end of the tank body;
the bottom ring 2 is horizontally arranged in the tank body;
the first liquid outlet pipe 3 is communicated with the tank body and is positioned at the upper part of the bottom ring 2;
the second liquid outlet pipe 4 is communicated with the tank body and is positioned at the lower part of the bottom ring 2;
the filtering membrane frame is arranged in the tank body, a plurality of filtering membrane pipes 6 are arranged in the filtering membrane frame, the upper part of the filtering membrane frame is in lap joint with the opening end of the tank body, the lower end of the filtering membrane frame is abutted against the bottom ring 2, and the tank body is divided into an upper space and a lower space by the bottom ring 2; the top of the filtering membrane frame is provided with a plurality of lifting rings 200, and the lifting rings 200 can be used for conveniently dismounting and mounting the filtering membrane frame;
the top cover 7 is arranged on the filtering membrane frame and seals the filtering membrane frame and the opening at the top of the tank body; is in seamless communication with the top end of the tank body; the top cover 7 is provided with a liquid inlet pipe 71.
Filter membrane pipe 6 and set up at the internal of jar through filtering the membrane frame, it is fixed not direct with jar body coupling, consequently can not directly go the operation in jar body when dismantling and filter membrane pipe 6, reduce and dismantle the degree of difficulty. Simultaneously can once only be quick detach all filtration membrane pipes 6 and install jar internally through filtering the membrane frame, reduce to disassemble jar body and lead to the time of production interrupt, improve production efficiency.
In this embodiment, the filtration membrane holder includes:
the upper top plate 51 is larger than the inner diameter of the tank body, is positioned between the tank body and the top cover 7, and is provided with a plurality of through holes 511; the upper end of the filtering membrane tube 6 is positioned in the through hole 511, and the outer side surface of the filtering membrane tube 6 is sealed with the upper top plate 51; a plurality of guide pipes 512 corresponding to the through holes 511 are arranged on the lower surface of the upper top plate 51, and the inner diameter of each guide pipe 512 is equal to the outer diameter of the filtering membrane pipe 6;
the lower pressure plate 52 is larger than the inner diameter of the bottom ring 2 in diameter, and the lower surface of the lower pressure plate is abutted against the upper surface of the bottom ring 2 for seamless sealing; the lower pressing plate 52 is provided with a plurality of through holes 521 corresponding to the through holes 511 on the upper top plate 51; the lower end of the filtering membrane tube 6 is positioned in the through hole 521, and the outer side surface of the filtering membrane tube 6 is sealed with the lower pressing plate 52; a plurality of limiting pipes 522 corresponding to the through holes 521 are arranged on the upper surface of the lower pressing plate 52, and the inner diameter of each limiting pipe 522 is equal to the outer diameter of the filtering membrane pipe 6.
The filtering membrane tube 6 is fixed through the upper top plate 51 and the lower pressing plate 52, meanwhile, the upper top plate 51 is in seamless sealing with the upper end of the tank body, and the lower pressing plate 52 and the bottom ring 2 are in mutual extrusion sealing, so that the filtering liquid and the impurity liquid are divided into two parts in the range of the tank body.
The stand pipe 512 and the spacing pipe 522 can restrict the cylindrical surface of the filtering membrane pipe 6, and the filtering membrane pipe 6 can be conveniently installed and can play a certain protection role for the filtering membrane pipe 6.
In the embodiment, the upper end and the lower end of the filtering membrane tube 6 are seamlessly fixedly connected with the upper top plate 51 and the lower pressing plate 52 through the compression sealing pieces; the compression seal includes:
the deformation compression ring 81 is arranged on the end face of the filtering membrane tube 6; the outer diameter of the compression ring is equal to the outer diameter of the filtering membrane tube 6, and the inner diameter of the compression ring is smaller than the inner diameter of the filtering membrane tube 6;
a sealing ring 82 coaxially disposed outside the through hole 511 or the through hole 521, on the upper surface of the upper top plate 51 or the lower surface of the lower pressing plate 52, and contacting the crush ring 81, wherein the inner diameter of the sealing ring 82 is equal to the inner diameter of the crush ring 81;
the fixing ring 83 is coaxially arranged with the sealing ring 82, is positioned on the outer side surface of the sealing ring 82, and has the inner diameter equal to that of the deforming compression ring 81; the fixing ring 83 is fixed on the upper top plate 51 or the lower pressing plate 52 by screws;
the filter membrane tube 6 is fixedly sealed by the compression sealing pieces on the upper top plate 51 and the lower pressing plate 52 respectively.
The filtering membrane frame further comprises a plurality of connecting rods 9, the connecting rods 9 are vertically arranged, and two ends of the connecting rods 9 are respectively connected with the lower surface of the upper top plate 51 and the upper surface of the lower pressing plate 52; one end of the connecting rod 9 is fixedly connected with the lower pressing plate 52, and the other end is connected with the upper top plate 51 through a bolt.
The deformation clamping ring 81 can be made of a clamping spring or an elastic material with deformability, the sealing ring can be made of colloid or steel, the deformation clamping ring 81 is limited, the sealing ring 82 is limited to the sealing ring 82, the filtering film tube 6 is fixed, the end face of the filtering film tube 6 is separated from the upper top plate 51 and the space between the lower pressing plates 52 in a seamless mode, and the purpose of sealing is achieved.
The connecting rod 9 can directly connect the upper top plate 51 with the lower pressing plate 52 together, so that when the filtering membrane frame is taken out, the whole stress is better without simply depending on the connection of the filtering membrane tube 6.
The top end of the connecting rod 9 is connected with the upper top plate 51 and the lower pressure plate 52 through bolts, so that the extrusion force applied to the two ends of the filtering membrane tube 6 is adjusted, and the sealing performance is adjusted.
In this embodiment, the upper surface of the bottom ring 2 is provided with a first sealing ring 10; the lower surface of the upper top plate 51 is sealed with the opening end surface of the tank body through a second sealing ring 82; the first sealing ring 10 and the second sealing ring 101 are both made of elastic deformation materials; the upper and lower ring surfaces of the first sealing ring 10 and the second sealing ring 101 are provided with a plurality of convex rings (not shown in the figure) around the circle centers thereof.
When flexible deformation materials such as tetrafluoroethylene are used as the sealing ring materials, the sealing performance can be improved by arranging the convex ring on the sealing ring.
The membrane filtration apparatus of the polyphenylene sulfide separation device and the regeneration method thereof according to the present embodiment are used such that the extension length of the connection rod 9 from the upper plate 51 is adjusted, the compression seal is installed on the lower press plate 52, the filtration membrane tubes 6 are inserted into the through holes 511 and the through holes 521 one by one, and finally the compression seal is installed on the upper plate 51, so that the filtration membrane tubes 6 are installed.
Finally, the end face tightness of the filtering membrane tube 6 can be adjusted by adjusting the bolt on the connecting rod 9. The installed filtering membrane frame is placed in the tank body, so that the lower pressing plate 52 and the bottom ring 2 are mutually extruded and sealed, and then the top cover 7, the filtering membrane frame and the tank body are integrally sealed.
When the filtering membrane tube 6 needs to be replaced, the operations are reversed.
As shown in fig. 6, the regeneration of the membrane filtration device of the polyphenylene sulfide separation apparatus is performed by:
s1, separating a top cover 7 from a tank body 11, injecting clean water into a filtering membrane frame through a first liquid outlet pipe 3 for backwashing, taking out the filtering membrane frame, taking out a filtering membrane pipe 6, and air-drying moisture on the surface and inside of the filtering membrane pipe.
S2, the filtering membrane tube 6 is placed into a heating furnace for stepped temperature rise combustion treatment, and the method specifically comprises the following steps:
s21, vertically and alternately placing the filtering membrane tubes 6 in a heating furnace, and keeping the filtering membrane tubes 6 communicated;
s22, raising the temperature of the heating furnace to 110-130 ℃, wherein the raising rate is 25-40 ℃ per hour, and keeping the temperature for 1-2 hours after the temperature in the heating furnace reaches 110-130 ℃;
s23, raising the temperature of the heating furnace from 110-130 ℃ to 280-300 ℃, wherein the raising rate is 40-50 ℃ per hour, and the temperature in the heating furnace is kept for 3-4 hours after reaching 280-300 ℃;
s24, raising the temperature of the heating furnace from 280-300 ℃ to 400-420 ℃, wherein the raising rate is 30-35 ℃ per hour, and the temperature in the heating furnace is maintained for 3-4 hours after reaching 400-420 ℃;
s25, raising the temperature of the heating furnace from 400-420 ℃ to 470-500 ℃, wherein the raising rate is 10-15 ℃ per hour, and the temperature in the heating furnace is kept for 5-6 hours after reaching 470-500 ℃;
s26, naturally cooling the heating furnace, and taking out the filtering membrane tube 6.
In the step S2, continuously injecting fresh air to the bottom in the heating furnace in the heating process of the heating furnace; the injection volume of the fresh air is 0.1-0.2 times of the space in the heating furnace per hour.
S3, installing the filtering membrane pipe 6 into a filtering membrane frame, installing the filtering membrane frame into the tank body 11, and performing blowing and flushing treatment, wherein the method specifically comprises the following steps:
SC1, installing a top cover 7, sealing the liquid inlet pipe 71, and opening the second liquid outlet pipe 4;
SC2, injecting filtered clean high-pressure gas into the tank body 11 through the first liquid outlet pipe 3;
SC3, open first drain pipe 3, inject the clean high-pressure gas after filtering into jar body 11 through second drain pipe 4.
S4, carrying out water cleaning on the filter membrane frame subjected to high-temperature combustion treatment, and specifically comprising the following steps:
s31, mounting the filter membrane tube 6 subjected to the combustion treatment into a filter membrane frame, and mounting the filter membrane frame into the tank body 11;
s32, installing a top cover 7, and opening the first liquid storage pipe and the second liquid outlet pipe 4;
s32, injecting high-pressure clean high-temperature water into the tank body 11 through the liquid inlet pipe 71, wherein the temperature of the clean high-temperature water is 80-95 ℃.
The washed filter membrane tube 6 is dried and then is installed in the tank body 11, and then the polyphenylene sulfide can be filtered.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. Polyphenylene sulfide separator membrane filtration equipment, its characterized in that includes:
a tank body in a cylindrical shape;
the bottom plate is arranged at the bottom of the tank body, is connected with the flange of the tank body and seals the bottom of the tank body;
the bottom ring is horizontally arranged in the tank body;
the first liquid outlet pipe is communicated with the tank body and is positioned at the upper part of the bottom ring;
the second liquid outlet pipe is communicated with the tank body and is positioned at the lower part of the bottom ring;
the filtering membrane frame is arranged in the tank body, a plurality of filtering membrane pipes are arranged in the filtering membrane frame, the upper part of the filtering membrane frame is in lap joint with the opening end of the tank body, the lower end of the filtering membrane frame is abutted against the bottom ring, and the tank body is divided into an upper space and a lower space by the bottom ring; the top of the filtering membrane frame is provided with a plurality of lifting rings;
the top cover is arranged on the filtering membrane frame and seals the filtering membrane frame and the opening at the top of the tank body; is in seamless communication with the top end of the tank body; the top cover is provided with a liquid inlet pipe.
2. The polyphenylene sulfide separation device membrane filtration apparatus of claim 1, wherein the filtration membrane rack comprises:
the diameter of the upper top plate is larger than the inner diameter of the tank body, the upper top plate is positioned between the tank body and the top cover, and a plurality of through holes are formed in the upper top plate; the upper end of the filtering membrane tube is positioned in the through hole, and the outer side surface of the filtering membrane tube is sealed with the upper top plate; the lower surface of the upper top plate is provided with a plurality of guide pipes corresponding to the through holes, and the inner diameter of each guide pipe is equal to the outer diameter of the filtering membrane pipe;
the diameter of the lower pressing plate is larger than the inner diameter of the bottom ring, and the lower surface of the lower pressing plate is abutted against the upper surface of the bottom ring for seamless sealing; the lower pressing plate is provided with a plurality of through holes corresponding to the through holes on the upper top plate; the lower end of the filtering membrane tube is positioned in the through hole, and the outer side surface of the filtering membrane tube is sealed with the lower pressing plate; a plurality of limiting pipes corresponding to the through holes are arranged on the upper surface of the lower pressing plate, and the inner diameters of the limiting pipes are equal to the outer diameter of the filtering membrane pipe;
the connecting rods are vertically arranged, and two ends of the connecting rods are respectively connected with the lower surface of the upper top plate and the upper surface of the lower pressing plate; one end of the connecting rod is fixedly connected with the lower pressing plate, and the other end of the connecting rod is connected with the upper top plate through a bolt.
3. The polyphenylene sulfide separation device membrane filtration equipment as claimed in claim 2, wherein the upper end and the lower end of the filtration membrane tube are seamlessly fixedly connected with the upper top plate and the lower pressure plate through compression seals; the compression seal includes:
the deformation compression ring is arranged on the end surface of the filtering membrane tube; the outer diameter of the pressure ring is equal to the outer diameter of the filtering membrane tube, and the inner diameter of the pressure ring is smaller than the inner diameter of the filtering membrane tube;
the sealing ring is coaxially arranged outside the through hole or the through hole, is positioned on the upper surface of the upper top plate or the lower surface of the lower pressing plate and is in contact with the deformation pressing ring, and the inner diameter of the sealing ring is equal to that of the deformation pressing ring;
the fixing ring is coaxial with the sealing ring and is positioned on the outer side surface of the sealing ring, and the inner diameter of the fixing ring is equal to that of the deformation pressing ring; the fixing ring is fixed on the upper top plate or the lower pressing plate through a screw;
and the filtering membrane tubes are respectively fixedly sealed by the compression sealing elements on the upper top plate and the lower pressing plate.
4. The polyphenylene sulfide separation device membrane filtration equipment as claimed in claim 2, wherein a first sealing ring is arranged on the upper surface of the bottom ring; the lower surface of the upper top plate is sealed with the opening end face of the tank body through a second sealing ring; the first sealing ring and the second sealing ring are both made of elastic deformation materials; the upper ring surface and the lower ring surface of the first sealing ring and the second sealing ring are respectively provided with a plurality of convex rings surrounding the circle centers of the first sealing ring and the second sealing ring.
5. The regeneration method of the polyphenylene sulfide separation device membrane filtration equipment as set forth in any one of claims 1 to 4, characterized by comprising the steps of:
s1, separating a top cover from a tank body, taking out a filtering membrane frame, and taking out a filtering membrane pipe;
s2, placing the filtering membrane tube into a heating furnace for step heating combustion treatment;
and S3, cleaning the filter membrane frame subjected to high-temperature combustion treatment with water.
6. The regeneration method of the membrane filtration equipment of the polyphenylene sulfide separation device according to claim 5, wherein in the step S1, before the filtration membrane rack is taken out, clean water is injected into the filtration membrane rack through the first liquid outlet pipe for back washing;
in the step S1, after the filtration membrane tube is taken out, the surface and the inside of the filtration membrane tube are air-dried.
7. The regeneration method of the polyphenylene sulfide separation device membrane filtration apparatus according to claim 5, wherein the step S2 comprises the steps of:
s21, vertically and alternately placing the filtering membrane tubes in a heating furnace, wherein the filtering membrane tubes are kept through;
s22, raising the temperature of the heating furnace to 110-130 ℃, wherein the raising rate is 25-40 ℃ per hour, and the temperature in the heating furnace is kept for 1-2 hours after reaching 110-130 ℃;
s23, raising the temperature of the heating furnace from 110-130 ℃ to 280-300 ℃, wherein the raising rate is 40-50 ℃ per hour, and the temperature in the heating furnace is kept for 3-4 hours after reaching 280-300 ℃;
s24, raising the temperature of the heating furnace from 280-300 ℃ to 400-420 ℃, wherein the raising rate is 30-35 ℃ per hour, and the temperature in the heating furnace is maintained for 3-4 hours after reaching 400-420 ℃;
s25, raising the temperature of the heating furnace from 400-420 ℃ to 470-500 ℃, wherein the raising rate is 10-15 ℃ per hour, and the temperature in the heating furnace is kept for 5-6 hours after reaching 470-500 ℃;
s26, naturally cooling the heating furnace, and taking out the filtering membrane tube.
8. The regeneration method of the membrane filtration device of the polyphenylene sulfide separation device according to claim 7, wherein fresh air is continuously injected into the bottom of the heating furnace during the heating process of the heating furnace; the injection volume of the fresh air is 0.1-0.2 times of the space in the heating furnace per hour.
9. The regeneration method of the polyphenylene sulfide separation device membrane filtration equipment as claimed in claim 5, wherein after the step S2 and before the step S3, the filtration membrane tube is installed in the filtration membrane frame, the filtration membrane frame is installed in the tank body, and the blowing and flushing treatment is performed, specifically comprising the following steps:
SC1, installing a top cover, sealing the liquid inlet pipe, and opening a second liquid outlet pipe;
SC2, injecting filtered clean high-pressure gas into the tank body through the first liquid outlet pipe;
SC3, open first drain pipe, inject into the clean high-pressure gas after the filtration through the second drain pipe to jar internal injection.
10. The regeneration method of the polyphenylene sulfide separation device membrane filtration equipment according to claim 5, wherein the step S3 comprises the steps of:
s31, mounting the filter membrane tube subjected to combustion treatment into a filter membrane frame, and mounting the filter membrane frame into a tank body;
s32, mounting a top cover, and opening the first liquid storage pipe and the second liquid outlet pipe;
s32, injecting high-pressure clean high-temperature water into the tank body through a liquid inlet pipe, wherein the temperature of the clean high-temperature water is 80-95 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210917121.7A CN115155314A (en) | 2022-08-01 | 2022-08-01 | Membrane filtration equipment of polyphenylene sulfide separation device and regeneration method thereof |
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| CN202210917121.7A CN115155314A (en) | 2022-08-01 | 2022-08-01 | Membrane filtration equipment of polyphenylene sulfide separation device and regeneration method thereof |
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| CN103157380A (en) * | 2013-03-20 | 2013-06-19 | 南京工业大学 | Pressure-resistant organic solvent-resistant tubular molecular sieve membrane component and pervaporation separation process thereof |
| CN106890575A (en) * | 2017-01-09 | 2017-06-27 | 南京中材水务股份有限公司 | A kind of regenerated offline device of ceramic membrane |
| CN210448266U (en) * | 2019-06-25 | 2020-05-05 | 珠海华天印新材料有限公司 | Ink filter device |
| CN214734904U (en) * | 2021-04-01 | 2021-11-16 | 安徽蓝鼎环保能源科技有限公司 | Filtration device is handled to rubbish transfer station leachate processing membrane |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157380A (en) * | 2013-03-20 | 2013-06-19 | 南京工业大学 | Pressure-resistant organic solvent-resistant tubular molecular sieve membrane component and pervaporation separation process thereof |
| CN106890575A (en) * | 2017-01-09 | 2017-06-27 | 南京中材水务股份有限公司 | A kind of regenerated offline device of ceramic membrane |
| CN210448266U (en) * | 2019-06-25 | 2020-05-05 | 珠海华天印新材料有限公司 | Ink filter device |
| CN214734904U (en) * | 2021-04-01 | 2021-11-16 | 安徽蓝鼎环保能源科技有限公司 | Filtration device is handled to rubbish transfer station leachate processing membrane |
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