CN115253426A - Waste water treatment device - Google Patents
Waste water treatment device Download PDFInfo
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- CN115253426A CN115253426A CN202210988397.4A CN202210988397A CN115253426A CN 115253426 A CN115253426 A CN 115253426A CN 202210988397 A CN202210988397 A CN 202210988397A CN 115253426 A CN115253426 A CN 115253426A
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- filter screen
- carbon fiber
- wastewater treatment
- heating
- pressure plate
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000009795 derivation Methods 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims description 60
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 44
- 239000004917 carbon fiber Substances 0.000 claims description 44
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 44
- 239000004744 fabric Substances 0.000 claims description 39
- 238000003825 pressing Methods 0.000 claims description 35
- 229920005989 resin Polymers 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 32
- 239000005341 toughened glass Substances 0.000 claims description 28
- 238000002844 melting Methods 0.000 claims description 18
- 230000008018 melting Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 14
- 238000003475 lamination Methods 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 229920006350 polyacrylonitrile resin Polymers 0.000 claims description 7
- 229920005990 polystyrene resin Polymers 0.000 claims description 7
- 238000012958 reprocessing Methods 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 15
- 239000011148 porous material Substances 0.000 description 13
- 238000012545 processing Methods 0.000 description 8
- 238000010030 laminating Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
Abstract
The utility model provides a wastewater treatment device, includes a leading-in portion, and the leading-in portion links to each other with a distribution cavity, sets up a division board in the below of distribution cavity, is provided with a plurality of mounting holes on the division board, and the cartridge is provided with a plurality of filtration body of rod in the mounting hole, is provided with the derivation cavity in the outside of filtering the body of rod, the filtration body of rod includes the annular groove body, sets up a filter screen outward at the ring channel, is provided with in the outside of filter screen and supports the reason, is provided with sealed the pad on supporting the reason, sealed the top of linking firmly with the filter screen sets up, is provided with reciprocal application of force portion in the filter screen that supports in the reason. But this application adopts the filter screen of automatically cleaning, utilizes reciprocal application of force portion to clean the filter screen in the use, guarantees filtration efficiency, and utilizes the mounting hole then to guarantee overall structure's stability with filtering the body of rod.
Description
Technical Field
The present application relates to a wastewater treatment apparatus.
Background
With the improvement of environmental protection requirements, the treatment requirements on the wastewater are higher and higher, and secondly, in some organic synthesis processes, the wastewater contains a certain amount of crystalline or granular substances, under the state, the wastewater is generally treated by adopting an auxiliary combustion or fine filtration mode, the combustion treatment mode has higher cost, and the substances cannot be recovered; the fine filtration has high consumption on a filter membrane, and is easy to block, otherwise, the requirement of wastewater treatment effect cannot be met.
Disclosure of Invention
In order to solve the problem, the application discloses a wastewater treatment device, including a leading-in portion, the leading-in portion links to each other with a distribution cavity, sets up a division board in the below of distribution cavity, is provided with a plurality of mounting holes on the division board, and the cartridge is provided with a plurality of filtration body of rod in the mounting hole, is provided with in the outside of filtering the body of rod and derives the cavity, filter the body of rod and include the annular groove body, set up a filter screen outward at the annular groove body, be provided with in the outside of filter screen and support marginal, be provided with sealed the pad on supporting marginal, sealed pad links firmly the setting with the top of filter screen, is provided with reciprocal application of force portion in the filter screen that supports in the edge. But this application adopts the filter screen of automatically cleaning, utilizes reciprocal force application portion to clean the filter screen in the use, guarantees filtration efficiency, and utilizes the mounting hole then to guarantee overall structure's stability with filtering the body of rod.
Preferably, the reciprocating force application part comprises a cleaning plate which is abutted against the inner side of the filter screen, and a feed rod is arranged on the cleaning plate and arranged in the feed piston;
the supporting edge comprises a vertical supporting plate which is arranged in an annular mode, and a positioning abutting plate is arranged on one side, far away from the isolation plate, of the vertical supporting plate.
Preferably, the filter screen comprises a first filter layer, a support layer and a second filter layer which are arranged from top to bottom in sequence.
Preferably, the first filter layer and the second filter layer are polytetrafluoroethylene filter membranes, and the support layer is a carbon fiber mesh layer. The utility model provides a carbon fiber net layer provides whole skeleton, and then both sides and middle part all set up polytetrafluoroethylene, and including outer both sides all form polytetrafluoroethylene filtration membrane, on the basis that its self wearability is good, can also avoid taking place structural deformation.
Preferably, the filter screen is synthesized as follows:
mixing polytetrafluoroethylene resin, polyacrylonitrile resin and polystyrene resin to obtain mixed resin;
taking the carbon fiber mesh cloth as a carrier, and carrying out hot melting and laminating on the mixed resin and the carbon fiber mesh cloth, wherein the laminating pressure is not lower than 15MPa, and the laminating time is not lower than 30min; in the case where the pressing pressure is maintained after the hot-melt pressing, the temperature is increased and then the heat treatment is performed.
Preferably, the device also comprises a mould, the carbon fiber mesh cloth is arranged in the middle of the mould, and the upper side and the lower side of the carbon fiber mesh cloth are respectively provided with mixed resin.
Preferably, the height of the support layer is 0.1-0.15mm, and the thickness of the first and second filter layers is 0.04-0.06mm.
Preferably, the mold comprises an annular shell, a fixed channel for fixing the carbon fiber mesh cloth is arranged in the middle of the annular shell, an upper pressure plate is arranged at the upper part of the annular shell, a lower pressure plate is arranged at the lower part of the annular shell, upper tempered glass is arranged on the surface of the upper pressure plate, lower tempered glass is arranged on the surface of the lower pressure plate, a plurality of upper microwave generators are uniformly distributed on the inner side of the upper pressure plate relative to the upper tempered glass, and a plurality of lower microwave generators are uniformly distributed on the inner side of the lower pressure plate relative to the lower tempered glass; the number of the upper microwave generators and the lower microwave generators is 9.
Preferably, the hot melting and pressing are carried out by utilizing an upper microwave generator and a lower microwave generator to heat, and the heating temperature is 300-350 ℃; the heat treatment temperature is 420-440 deg.C, and the time is 4-5min.
Preferably, after the pressing, the method also comprises a reprocessing process after the heat treatment, wherein the pressure is reduced to 0.5-1MPa, then the intermittent heating is carried out by utilizing an upper microwave generator and a lower microwave generator, the heating power is not lower than 300W, and the heating time and the heating interval are controlled so that the temperature is not higher than 200 ℃ and the time is 60-90s. This application forms holistic membrane structure earlier, then carries out intermittent type heating for carbon fiber net check cloth and mixed resin produce asynchronous deformation, further promotion pore structure's gradual change nature forms, thereby guarantees pore structure's stability.
This application can bring following beneficial effect:
1. but this application adopts the filter screen of automatically cleaning, utilizes reciprocal application of force portion to clean the filter screen in the use, guarantees filtration efficiency, and utilizes the mounting hole then to guarantee overall structure's stability with filtering the body of rod.
2. The carbon fiber net layer of the utility model provides an integral framework, then both sides and the middle part are provided with polytetrafluoroethylene, the polytetrafluoroethylene filtering membranes are formed on the inner side and the outer side, and structural deformation can be avoided on the basis of good self wear resistance.
3. This application forms holistic membrane structure earlier, then carries out intermittent type heating for carbon fiber net check cloth and mixed resin produce asynchronous deformation, further promotion pore structure's gradual change nature forms, thereby guarantees pore structure's stability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of the structure of the isolation plate;
FIG. 3 is a schematic view of the structure of the support rim;
FIG. 4 is a schematic structural view of a filter screen;
fig. 5 is a schematic structural view of the mold.
Detailed Description
In order to clearly explain the technical features of the present solution, the present application will be explained in detail through the specific embodiments below.
As shown in fig. 1-5, a wastewater treatment device comprises a leading-in part 1, wherein the leading-in part 1 is connected with a distribution cavity 2, a partition plate 3 is arranged below the distribution cavity 2, a plurality of mounting holes 4 are formed in the partition plate 3, a plurality of filtering rod bodies 5 are inserted in the mounting holes 4, a leading-out cavity 6 is arranged outside the filtering rod bodies 5, each filtering rod body 5 comprises an annular groove body 7, a filter screen 8 is arranged outside the annular groove body 7, a supporting edge 9 is arranged outside the filter screen 8, a sealing gasket 10 is arranged on the supporting edge 9, the sealing gasket 10 is fixedly connected with the top of the filter screen 8, and a reciprocating force application part 11 is arranged in the filter screen 8 in the supporting edge 9. The reciprocating force application part 11 comprises a cleaning plate 12 which is arranged in contact with the inner side of the filter screen 8, a feed rod 13 is arranged on the cleaning plate 12, and the feed rod 13 is arranged in a feed piston 14; the supporting edge 9 comprises a vertical supporting plate 15 which is arranged in an annular shape, and a positioning abutting plate 16 is arranged on one side, away from the partition plate 3, of the vertical supporting plate 15. The filter screen 8 comprises a first filter layer 17, a support layer 18 and a second filter layer 19 which are arranged from top to bottom in sequence. The first filter layer 17 and the second filter layer 19 are polytetrafluoroethylene filter membranes, and the support layer 18 is a carbon fiber mesh layer.
The filter screen is synthesized according to the following method:
mixing polytetrafluoroethylene resin, polyacrylonitrile resin and polystyrene resin to obtain mixed resin;
taking carbon fiber mesh cloth as a carrier, placing half of mixed resin into the range of the annular shell 20 and the lower pressing plate according to the capacity, then laying the carbon fiber mesh cloth, fixing the two sides of the carbon fiber mesh cloth by using a fixing channel 21, placing the other half of the mixed resin, and then carrying out hot melting lamination on the mixed resin and the carbon fiber mesh cloth, wherein the lamination pressure is not lower than 15MPa, and the lamination time is not lower than 30min; in the case where the pressing pressure is maintained after the hot-melt pressing, the temperature is increased and then the heat treatment is performed. The carbon fiber mesh cloth is arranged in the middle of the mold, and mixed resin is respectively arranged on the upper side and the lower side of the carbon fiber mesh cloth. The height of the support layer 18 is 0.1-0.15mm and the thickness of the first filter layer 17 and the second filter layer 19 is 0.04-0.06mm. The mold comprises an annular shell 20, a fixed channel 21 for fixing carbon fiber mesh cloth is arranged in the middle of the annular shell 20, the outer side of the fixed channel 21 can be fixed in a clamping and stretching mode, an upper pressure plate 22 is arranged at the upper part of the annular shell 20, a lower pressure plate 23 is arranged at the lower part of the annular shell 20, upper tempered glass 24 is arranged on the surface of the upper pressure plate 22, lower tempered glass 25 is arranged on the surface of the lower pressure plate 23, a plurality of upper microwave generators 26 are uniformly distributed at the inner side of the upper pressure plate 22 relative to the upper tempered glass 24, and a plurality of lower microwave generators 27 are uniformly distributed at the inner side of the lower pressure plate 23 relative to the lower tempered glass 25; the number of the upper and lower microwave generators 26 and 27 was 9, the size of the upper and lower press plates 22 and 23 was 500mm by 500mm, and the heating power of the upper and lower microwave generators 26 and 27 was 500W at the maximum. Heating by using an upper microwave generator 26 and a lower microwave generator 27 to 300-350 ℃ in a hot melting and pressing way; the heat treatment temperature is 420-440 deg.C, and the time is 4-5min. After the pressing, the method also comprises a reprocessing process after the heat treatment, wherein the pressure is reduced to 0.5-1MPa, then an upper microwave generator and a lower microwave generator are used for carrying out intermittent heating, the heating power is not lower than 300W, the heating time and the heating interval are controlled so that the temperature is not higher than 200 ℃ and the time is 60-90s.
The filter screen is synthesized specifically as follows:
s1, mixing polytetrafluoroethylene resin, polyacrylonitrile resin and polystyrene resin to obtain mixed resin;
s2, taking the carbon fiber mesh cloth as a carrier, and carrying out hot melting lamination on the mixed resin and the carbon fiber mesh cloth, wherein the lamination pressure is not lower than 15MPa, and the lamination time is not lower than 30min;
s3, under the condition that the pressing pressure is kept after hot melting pressing, the temperature is increased, then heat treatment is carried out, the carbon fiber mesh cloth is arranged in the middle of the mold, and the upper side and the lower side of the carbon fiber mesh cloth are respectively provided with mixed resin; the height of the supporting layer is 0.1-0.15mm, and the thickness of the first filtering layer and the second filtering layer is 0.04-0.06mm.
When processing, a mould is adopted for processing, the mould comprises an annular shell, a fixed channel for fixing carbon fiber mesh cloth is arranged in the middle of the annular shell, an upper pressure plate is arranged at the upper part of the annular shell, a lower pressure plate is arranged at the lower part of the annular shell, upper tempered glass is arranged on the surface of the upper pressure plate, lower tempered glass is arranged on the surface of the lower pressure plate, a plurality of upper microwave generators are uniformly distributed on the inner side of the upper pressure plate relative to the upper tempered glass, and a plurality of lower microwave generators are uniformly distributed on the inner side of the lower pressure plate relative to the lower tempered glass; the number of the upper microwave generators and the lower microwave generators is 9, the size of the upper pressing plate and the lower pressing plate is 500mm by 500mm, and the heating power of the upper microwave generators and the lower microwave generators is up to 500W. Heating by using an upper microwave generator and a lower microwave generator in a hot melting and pressing way, wherein the heating temperature is 300-350 ℃; the heat treatment temperature is 420-440 deg.C, and the time is 4-5min;
s4, reprocessing:
reducing the pressure to 0.5-1MPa, and then intermittently heating by using an upper microwave generator and a lower microwave generator, wherein the heating power is not lower than 300W, the heating time and the heating interval are controlled so that the temperature is not higher than 200 ℃ and the time is 60-90s. The upper pressing plate and the lower pressing plate are pressed in a piston cylinder mode and the like.
For the filter screen, the synthesis is as follows:
example 1:
s1, mixing 6kg of polytetrafluoroethylene resin, 1kg of polyacrylonitrile resin and 0.5kg of polystyrene resin to obtain mixed resin;
s2, taking carbon fiber mesh cloth with the thickness of 0.1mm and the space size of 10mm by 10mm as a carrier, and carrying out hot melting and laminating on the mixed resin and the carbon fiber mesh cloth at the laminating pressure of 15MPa for 30min;
s3, under the condition that the pressing pressure is kept after hot melting pressing, heat treatment is carried out after the temperature is increased, the carbon fiber mesh cloth is arranged in the middle of the mold, and the upper side and the lower side of the carbon fiber mesh cloth are respectively provided with mixed resin; the height of the support layer is 0.1mm, and the thickness of the first filter layer and the second filter layer is 0.04mm.
When the processing is carried out, a mould is adopted for processing, the mould comprises an annular shell, a fixed channel for fixing carbon fiber gridding cloth is arranged in the middle of the annular shell, an upper pressure plate is arranged at the upper part of the annular shell, a lower pressure plate is arranged at the lower part of the annular shell, upper toughened glass is arranged on the surface of the upper pressure plate, lower toughened glass is arranged on the surface of the lower pressure plate, a plurality of upper microwave generators are uniformly distributed on the inner side of the upper pressure plate relative to the upper toughened glass, and a plurality of lower microwave generators are uniformly distributed on the inner side of the lower pressure plate relative to the lower toughened glass; the number of the upper microwave generators and the lower microwave generators is 9, the size of the upper pressing plate and the lower pressing plate is 500mm by 500mm, and the maximum heating power of the upper microwave generators and the lower microwave generators is 500W. Heating by using an upper microwave generator and a lower microwave generator in a hot melting and pressing way, wherein the heating temperature is up to 300 ℃; the heat treatment temperature is 420 deg.C, and the time is 5min;
s4, reprocessing:
reducing the pressure to 0.5MPa, and then intermittently heating the mixture by using an upper microwave generator and a lower microwave generator, wherein the heating power is not lower than 300W, the heating time and the heating interval are controlled so that the control temperature is not higher than 200 ℃ and the total time is controlled to be 90s.
The tests were carried out according to the method described in standard GB/T32361-2015, in μm: soaking a sample to be detected by using low surface tension liquid to ensure that all pores are filled with wetting liquid; the sample was mounted on a jig, vented, and the gas pressure was increased stepwise. As the gas pressure increases, the surface tension of the liquid is overcome until the liquid is drained from the pores, and the relationship between the gas pressure and the gas flow rate during this process is recorded, referred to as the "wet" curve; after all the liquid is discharged, recording the relation between the gas pressure and the gas flow, and calling a dry curve; the average pore size was 5.9 μm as calculated from the "dry" and "wet" curves.
The tensile strength was measured according to GB/T1040.3-2006 to be 7.3MPa.
Example 2:
s1, mixing 8kg of polytetrafluoroethylene resin, 2kg of polyacrylonitrile resin and 1kg of polystyrene resin to obtain mixed resin;
s2, taking carbon fiber mesh cloth with the thickness of 0.15mm and the space size of 10mm + 10mm as a carrier, and carrying out hot melting lamination on the mixed resin and the carbon fiber mesh cloth under the lamination pressure of 15MPa for 30min;
s3, under the condition that the pressing pressure is kept after hot melting pressing, the temperature is increased, then heat treatment is carried out, the carbon fiber mesh cloth is arranged in the middle of the mold, and the upper side and the lower side of the carbon fiber mesh cloth are respectively provided with mixed resin; the height of the support layer was 0.15mm, and the thickness of the first and second filter layers was 0.06mm.
When processing, a mould is adopted for processing, the mould comprises an annular shell, a fixed channel for fixing carbon fiber mesh cloth is arranged in the middle of the annular shell, an upper pressure plate is arranged at the upper part of the annular shell, a lower pressure plate is arranged at the lower part of the annular shell, upper tempered glass is arranged on the surface of the upper pressure plate, lower tempered glass is arranged on the surface of the lower pressure plate, a plurality of upper microwave generators are uniformly distributed on the inner side of the upper pressure plate relative to the upper tempered glass, and a plurality of lower microwave generators are uniformly distributed on the inner side of the lower pressure plate relative to the lower tempered glass; the number of the upper microwave generators and the lower microwave generators is 9, the size of the upper pressing plate and the lower pressing plate is 500mm by 500mm, and the maximum heating power of the upper microwave generators and the lower microwave generators is 500W. Heating by using an upper microwave generator and a lower microwave generator in a hot melting and pressing way, wherein the heating temperature is 350 ℃; the heat treatment temperature is 440 deg.C, and the time is 4min;
s4, reprocessing:
reducing the pressure to 1MPa, and then intermittently heating the mixture by using an upper microwave generator and a lower microwave generator, wherein the heating power is not lower than 300W, the heating time and the heating interval are controlled so that the control temperature is not higher than 200 ℃ and the total time is controlled to be 60s.
The tests were carried out according to the method described in standard GB/T32361-2015, in μm: soaking a sample to be detected by using low surface tension liquid to ensure that all pores are filled with wetting liquid; the sample was mounted on a jig, vented, and the gas pressure was increased stepwise. As the gas pressure increases, the surface tension of the liquid is overcome until the liquid is drained from the pores, and the relationship between the gas pressure and the gas flow rate during this process is recorded, referred to as the "wet" curve; after all the liquid is discharged, recording the relation between the gas pressure and the gas flow, and calling a dry curve; the average pore size was 6.4 μm as calculated from the "dry" and "wet" curves.
The tensile strength was determined to be 7.1MPa according to GB/T1040.3-2006.
Comparative example 1:
s1, mixing 8kg of polytetrafluoroethylene resin, 2kg of polyacrylonitrile resin and 1kg of polystyrene resin to obtain mixed resin;
s2, taking carbon fiber mesh cloth with the thickness of 0.15mm and the space size of 10mm by 10mm as a carrier, and carrying out hot melting and laminating on the mixed resin and the carbon fiber mesh cloth at the laminating pressure of 15MPa for 30min;
s3, under the condition that the pressing pressure is kept after hot melting pressing, the temperature is increased, then heat treatment is carried out, the carbon fiber mesh cloth is arranged in the middle of the mold, and the upper side and the lower side of the carbon fiber mesh cloth are respectively provided with mixed resin; the height of the support layer is 0.15mm, and the thickness of the first filter layer and the second filter layer is 0.06mm.
When processing, a mould is adopted for processing, the mould comprises an annular shell, a fixed channel for fixing carbon fiber mesh cloth is arranged in the middle of the annular shell, an upper pressure plate is arranged at the upper part of the annular shell, a lower pressure plate is arranged at the lower part of the annular shell, upper tempered glass is arranged on the surface of the upper pressure plate, lower tempered glass is arranged on the surface of the lower pressure plate, a plurality of upper microwave generators are uniformly distributed on the inner side of the upper pressure plate relative to the upper tempered glass, and a plurality of lower microwave generators are uniformly distributed on the inner side of the lower pressure plate relative to the lower tempered glass; the number of the upper microwave generators and the lower microwave generators is 9, the size of the upper pressing plate and the lower pressing plate is 500mm by 500mm, and the heating power of the upper microwave generators and the lower microwave generators is up to 500W. Heating by using an upper microwave generator and a lower microwave generator in a hot melting and pressing way, wherein the heating temperature is 350 ℃; the temperature of the heat treatment is 440 ℃, and the time is 4min;
the tests were carried out according to the method described in standard GB/T32361-2015, in μm: soaking a sample to be detected by using low surface tension liquid to ensure that all pores are filled with wetting liquid; the sample was mounted on a jig, vented, and the gas pressure was increased stepwise. As the gas pressure increases, the surface tension of the liquid is overcome until the liquid is drained from the pores, and the relationship between the gas pressure and the gas flow rate during this process is recorded, referred to as the "wet" curve; after all the liquid is discharged, recording the relation between the gas pressure and the gas flow, and calling a dry curve; the average pore size was 2.4 μm as calculated from the "dry" and "wet" curves.
The tensile strength was measured according to GB/T1040.3-2006 to be 8.7MPa.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A wastewater treatment device is characterized in that: including a leading-in portion, leading-in portion links to each other with a distribution cavity, sets up a division board in the below of distribution cavity, is provided with a plurality of mounting holes on the division board, and the cartridge is provided with a plurality of filtration body of rod in the mounting hole, is provided with the derivation cavity in the outside of filtering the body of rod, the filtration body of rod includes the annular groove body, sets up a filter screen outside the ring channel body, is provided with in the outside of filter screen and supports the reason, is provided with sealed the pad on supporting the reason, sealed the top of linking firmly with the filter screen and setting up, is provided with reciprocal force application portion in the filter screen that supports in the reason.
2. A wastewater treatment plant according to claim 1, characterized in that: the reciprocating force application part comprises a cleaning plate which is abutted against the inner side of the filter screen, and a feeding rod is arranged on the cleaning plate and arranged in the feeding piston;
the supporting edge comprises a vertical supporting plate which is arranged in an annular mode, and a positioning abutting plate is arranged on one side, far away from the isolation plate, of the vertical supporting plate.
3. A wastewater treatment plant according to claim 1, characterized in that: the filter screen comprises a first filter layer, a supporting layer and a second filter layer which are sequentially arranged from top to bottom.
4. A wastewater treatment plant according to claim 3, characterized in that: the first filter layer and the second filter layer are polytetrafluoroethylene filter membranes, and the support layer is a carbon fiber net layer.
5. The wastewater treatment apparatus according to claim 4, characterized in that: the filter screen is synthesized according to the following method:
mixing polytetrafluoroethylene resin, polyacrylonitrile resin and polystyrene resin to obtain mixed resin;
taking the carbon fiber mesh cloth as a carrier, and carrying out hot melting lamination on the mixed resin and the carbon fiber mesh cloth, wherein the lamination pressure is not lower than 15MPa, and the lamination time is not lower than 30min; in the case where the pressing pressure is maintained after the hot-melt pressing, the temperature is increased and then the heat treatment is performed.
6. An apparatus for treating waste water according to claim 5, characterized in that: the carbon fiber mesh cloth is arranged in the middle of the mold, and mixed resin is respectively arranged on the upper side and the lower side of the carbon fiber mesh cloth.
7. The wastewater treatment apparatus according to claim 6, characterized in that: the height of the supporting layer is 0.1-0.15mm, and the thickness of the first filtering layer and the second filtering layer is 0.04-0.06mm.
8. The wastewater treatment apparatus according to claim 6, characterized in that: the mold comprises an annular shell, a fixed channel for fixing carbon fiber mesh cloth is arranged in the middle of the annular shell, an upper pressure plate is arranged at the upper part of the annular shell, a lower pressure plate is arranged at the lower part of the annular shell, upper tempered glass is arranged on the surface of the upper pressure plate, lower tempered glass is arranged on the surface of the lower pressure plate, a plurality of upper microwave generators are uniformly distributed on the inner side of the upper pressure plate relative to the upper tempered glass, and a plurality of lower microwave generators are uniformly distributed on the inner side of the lower pressure plate relative to the lower tempered glass; the number of the upper microwave generators and the lower microwave generators is 9.
9. The wastewater treatment plant according to claim 8, characterized in that: heating by using an upper microwave generator and a lower microwave generator in a hot melting and pressing way, wherein the heating temperature is 300-350 ℃; the heat treatment temperature is 420-440 deg.C, and the time is 4-5min.
10. The wastewater treatment plant according to claim 8, characterized in that: after the pressing, the method also comprises a reprocessing process after the heat treatment, wherein the pressure is reduced to 0.5-1MPa, then an upper microwave generator and a lower microwave generator are used for carrying out intermittent heating, the heating power is not lower than 300W, the heating time and the heating interval are controlled so that the temperature is not higher than 200 ℃ and the time is 60-90s.
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| CN202210988397.4A CN115253426A (en) | 2022-08-17 | 2022-08-17 | Waste water treatment device |
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| CN202210988397.4A CN115253426A (en) | 2022-08-17 | 2022-08-17 | Waste water treatment device |
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