CN112206574A - Method for fixing inclined plate in CN filter instead of glass fiber reinforced plastic material - Google Patents
Method for fixing inclined plate in CN filter instead of glass fiber reinforced plastic material Download PDFInfo
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- CN112206574A CN112206574A CN202011082240.2A CN202011082240A CN112206574A CN 112206574 A CN112206574 A CN 112206574A CN 202011082240 A CN202011082240 A CN 202011082240A CN 112206574 A CN112206574 A CN 112206574A
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 239000011152 fibreglass Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 106
- 239000004033 plastic Substances 0.000 claims abstract description 106
- 238000005520 cutting process Methods 0.000 claims abstract description 52
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 22
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
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- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 5
- 239000011151 fibre-reinforced plastic Substances 0.000 claims 5
- 239000011094 fiberboard Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 10
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- 235000003891 ferrous sulphate Nutrition 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to the technical field of inclined plate fixing, and discloses a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material, which comprises the following steps of S1: preparing raw materials, namely a PP plastic plate and a plastic rib plate; s2: processing, cutting by a circular cutting machine, and cutting the PP plastic plate into a circular plate with an inner circle of phi 300 and an outer circle of phi 600; s3: slotting, namely slotting the periphery of the excircle of the cut PP plastic plate; s4: cutting; the invention also provides a CN filter internal fixation inclined plate replacing glass fiber reinforced plastic materials, which comprises a circular ring-shaped plate, wherein a plurality of inclined strip grooves are formed in the outer circumferential wall of the circular ring-shaped plate and are uniformly distributed, and a plurality of plastic rib plates are fixed on one side of the circular ring-shaped plate through bolts. The invention replaces the components in the waste CN filter with the PP plastic plate, perfectly replaces the components in the waste equipment, achieves the effect of waste utilization and reduces the cost.
Description
Technical Field
The invention relates to the technical field of inclined plate fixing, in particular to a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material.
Background
The CN type filter is a solid-liquid separation device, adopts a polymer particle adsorption filtration technology, utilizes a layer of suspension filter medium to absorb suspended matters in the filtered liquid, so that the discharged liquid is clear, the efficiency of removing the suspended matters by the device is ensured to be more than 98.5 percent, and the device does not have filter blockage and scaling by adopting a unique backwashing technology so as to ensure a long-term filtering effect. The equipment is made of FRP materials, and has the advantages of corrosion resistance, less maintenance workload, high use reliability and long service life.
The production post CN filter is made of glass fiber reinforced plastic except that the nozzle is made of plastic. The detachable maintenance of a plurality of swash plates of inside or washing, the support and the central material union coupling of fixed swash plate are a whole with the barrel, because equipment live time is longer, and the glass steel support of filter internal fixation swash plate all around most drops, and the swash plate can't be fixed, and it is poor to filter the result of use, if resume glass steel material, not only repair time is long, and the inner assembly needs whole changes moreover, and the expense is very high, can not satisfy people's requirement.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material, and mainly aims to solve the problems that most of a glass fiber reinforced plastic bracket for fixing the inclined plates on the periphery in the filter falls off after the existing equipment is used for a long time, the inclined plates cannot be fixed, the filtering use effect is poor, if the glass fiber reinforced plastic material is recovered, the repair time is long, all internal components need to be replaced, and the cost is high.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material comprises the following steps:
s1: preparing raw materials, namely a PP plastic plate and a plastic rib plate;
s2: processing, cutting by a circular cutting machine, and cutting the PP plastic plate into a circular plate with an inner circle of phi 300 and an outer circle of phi 600;
s3: slotting, namely slotting the periphery of the excircle of the cut PP plastic plate;
s4: cutting, namely uniformly cutting the annular PP plastic plate into two semicircular rings;
s5: sleeving and fixing, namely sleeving the two cut semicircular rings outside the glass fiber reinforced plastic cylinder through which the materials are introduced in the equipment, and welding the two separated semicircular rings into an original whole circular ring shape by using a plastic welding gun;
s6: reinforcing, namely reinforcing the welded circular plate by using materials;
s7: and (4) mounting, namely mounting the inclined plate in the inclined groove.
Furthermore, the thickness of the PP plastic plate in the S1 is 4-7 mm, the PP plastic plate is checked before use, and the PP plastic plate with cracks, scratches and depressions is screened out, so that the influence of unqualified raw material quality on the subsequent installation work is prevented.
On the basis of the scheme, in the step S2, grinding is carried out after cutting, and the inner circle and the outer circle of the PP plastic plate are respectively ground.
As a further scheme of the invention, the groove depth is 40-60 mm when the grooves are opened in S3, the number of the grooves is 60-80, the grooves are uniformly opened, and the opened grooves are slanted grooves, which facilitates the installation and fixation of the slanted plate.
Further, in the step S4, the scribe line is measured during the cutting, so as to prevent the mounting from being unstable due to the uneven cutting.
On the basis of the scheme, the S5 is fixed by the supporting block before welding and during sleeving, so that balance is guaranteed.
According to a further scheme of the invention, the reinforced material in S6 is a plastic rib plate or a fiber plate, the plastic rib plate is fixed at the bottom of the circular ring plate by using screws, and then the plastic rib plate is adhered to the outer wall of the glass fiber reinforced plastic cylinder by using solid glue.
Further, when the fixing in S6 is performed, a plastic rib plate or a fiber plate adapted to the glass fiber reinforced plastic cylinder is selected, and then a rubber block is bonded to the inner side of the plastic rib plate or the fiber plate, one side of the rubber block is in contact with the outer wall of the glass fiber reinforced plastic cylinder, and the plastic rib plate or the fiber plate is fixed to the bottom of the circular ring plate by a screw.
The invention also provides a CN filter internal fixation inclined plate replacing glass fiber reinforced plastic materials, which comprises a circular ring-shaped plate, wherein a plurality of inclined strip grooves are formed in the outer circumferential wall of the circular ring-shaped plate and are uniformly distributed, and a plurality of plastic rib plates are fixed on one side of the circular ring-shaped plate through bolts.
(III) advantageous effects
Compared with the prior art, the invention provides a method for fixing the inclined plate in the CN filter instead of a glass fiber reinforced plastic material, which has the following beneficial effects:
1. in the invention, the PP plastic plate is used for replacing components in the waste CN filter, so that the components in waste equipment are perfectly replaced, the effect of waste utilization is achieved, and the cost is reduced.
2. According to the invention, the PP plastic plate is sprinkled when being polished, so that the deformation of the PP plastic plate caused by overhigh temperature during polishing is prevented.
3. Fixed with the supporting shoe before the welding when the suit, guarantee to balance, the slope when preventing to weld influences normal swash plate installation work, consolidates ring shape board, prevents that it from droing, improves life.
Drawings
Fig. 1 is a schematic flow structure diagram of a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material according to the present invention.
Fig. 2 is a schematic structural diagram of a fixed inclined plate in a CN filter instead of a glass fiber reinforced plastic material according to the present invention.
In the figure: 1. a circular ring shaped plate; 2. a diagonal groove; 3. a plastic rib plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material comprises the following steps:
s1: preparing raw materials, namely a PP plastic plate and a plastic rib plate;
s2: processing, cutting by a circular cutting machine, and cutting the PP plastic plate into a circular plate with an inner circle of phi 300 and an outer circle of phi 600;
s3: slotting, namely slotting the periphery of the excircle of the cut PP plastic plate;
s4: cutting, namely uniformly cutting the annular PP plastic plate into two semicircular rings;
s5: sleeving and fixing, namely sleeving the two cut semicircular rings outside the glass fiber reinforced plastic cylinder through which the materials are introduced in the equipment, and welding the two separated semicircular rings into an original whole circular ring shape by using a plastic welding gun;
s6: reinforcing, namely reinforcing the welded circular plate by using materials;
s7: the installation, the swash plate is installed in the sloping groove can, replaces the subassembly in old and useless CN filter with the PP plastic slab, and perfect the subassembly in having replaced old and useless equipment has reached waste utilization's effect, the cost is reduced.
The thickness of the PP plastic plate in S1 is 4-7 mm, the PP plastic plate is checked before use, the PP plastic plate with cracks, scratches and depressions is screened out, the influence of unqualified raw material quality on subsequent installation work is prevented, polishing is carried out after cutting in S2, the inner circle and the outer circle of the PP plastic plate are respectively polished, watering operation is carried out during polishing, deformation of the PP plastic plate caused by overhigh temperature during polishing is prevented, the groove depth is 40-60 mm during grooving in S3, the number of grooves is 60-80, grooves are uniformly grooved, the grooves are oblique grooves, installation and fixation of an oblique plate are facilitated, measurement and scribing are carried out during cutting in S4, and instable installation caused by non-uniform cutting is prevented.
It should be particularly noted that the material reinforced in S6 is a plastic rib plate or a fiber plate, the plastic rib plate is fixed at the bottom of the circular ring plate by screws, and then the plastic rib plate is adhered to the outer wall of the glass fiber reinforced plastic cylinder by solid glue, when the material is fixed in S6, the plastic rib plate or the fiber plate matched with the glass fiber reinforced plastic cylinder in a circular arc shape is selected, and then a rubber block is adhered to the inner side of the plastic rib plate or the fiber plate, one side of the rubber block is in contact with the outer wall of the glass fiber reinforced plastic cylinder, and the plastic rib plate or the fiber plate is fixed at the bottom of the circular ring plate by screws, so that the circular ring plate is reinforced.
The invention also provides a CN filter internal fixation inclined plate replacing glass fiber reinforced plastic materials, which comprises a circular ring-shaped plate 1, wherein the outer circumferential wall of the circular ring-shaped plate 1 is provided with a plurality of inclined strip grooves 2, the inclined strip grooves 2 are uniformly distributed, and one side of the circular ring-shaped plate 1 is fixed with a plurality of plastic rib plates 3 through bolts.
Example 2
Referring to fig. 1-2, a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material comprises the following steps:
s1: preparing raw materials, namely a PP plastic plate and a plastic rib plate;
s2: processing, cutting by a circular cutting machine, and cutting the PP plastic plate into a circular plate with an inner circle of phi 300 and an outer circle of phi 600;
s3: slotting, namely slotting the periphery of the excircle of the cut PP plastic plate;
s4: cutting, namely uniformly cutting the annular PP plastic plate into two semicircular rings;
s5: sleeving and fixing, namely sleeving the two cut semicircular rings outside the glass fiber reinforced plastic cylinder through which the materials are introduced in the equipment, and welding the two separated semicircular rings into an original whole circular ring shape by using a plastic welding gun;
s6: reinforcing, namely reinforcing the welded circular plate by using materials;
s7: the installation, the swash plate is installed in the sloping groove can, replaces the subassembly in old and useless CN filter with the PP plastic slab, and perfect the subassembly in having replaced old and useless equipment has reached waste utilization's effect, the cost is reduced.
The thickness of the PP plastic plate in S1 is 6 mm, the PP plastic plate is checked before use, the PP plastic plate with cracks, scratches and depressions is screened out, the influence of unqualified raw material quality on subsequent installation work is prevented, polishing is carried out after cutting in S2, the inner circle and the outer circle of the PP plastic plate are respectively polished, water spraying operation is carried out during polishing, the PP plastic plate is prevented from being deformed due to overhigh temperature during polishing, the groove depth is 50 mm during grooving in S3, the number of grooves is 74, grooves are uniformly grooved, the grooves are oblique grooves, installation and fixation of an oblique plate are facilitated, measurement and scribing are carried out during cutting in S4, and instable installation due to non-uniform cutting are prevented.
It should be particularly noted that, in S6, when fixing, a plastic rib plate or a fiber plate adapted to the glass fiber reinforced plastic cylinder is selected, and then a rubber block is bonded to the inner side of the plastic rib plate or the fiber plate, one side of the rubber block is in contact with the outer wall of the glass fiber reinforced plastic cylinder, and the plastic rib plate or the fiber plate is fixed to the bottom of the circular ring plate by using screws to reinforce the circular ring plate, so as to prevent the circular ring plate from falling off and prolong the service life.
The invention also provides a CN filter internal fixation inclined plate replacing glass fiber reinforced plastic materials, which comprises a circular ring-shaped plate 1, wherein the outer circumferential wall of the circular ring-shaped plate 1 is provided with a plurality of inclined strip grooves 2, the inclined strip grooves 2 are uniformly distributed, and one side of the circular ring-shaped plate 1 is fixed with a plurality of plastic rib plates 3 through bolts.
Example 3
Referring to fig. 1-2, a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material comprises the following steps:
s1: preparing raw materials, namely a PP plastic plate and a plastic rib plate;
s2: processing, cutting by a circular cutting machine, and cutting the PP plastic plate into a circular plate with an inner circle of phi 300 and an outer circle of phi 600;
s3: slotting, namely slotting the periphery of the excircle of the cut PP plastic plate;
s4: cutting, namely uniformly cutting the annular PP plastic plate into two semicircular rings;
s5: sleeving and fixing, namely sleeving the two cut semicircular rings outside the glass fiber reinforced plastic cylinder through which the materials are introduced in the equipment, and welding the two separated semicircular rings into an original whole circular ring shape by using a plastic welding gun;
s6: reinforcing, namely reinforcing the welded circular plate by using materials;
s7: the installation, the swash plate is installed in the sloping groove can, replaces the subassembly in old and useless CN filter with the PP plastic slab, and perfect the subassembly in having replaced old and useless equipment has reached waste utilization's effect, the cost is reduced.
The thickness of the PP plastic plate in S1 is 5-6 mm, the PP plastic plate is checked before use, the PP plastic plate with cracks, scratches and depressions is screened out, the influence of unqualified raw material quality on subsequent installation work is prevented, polishing is carried out after cutting in S2, the inner circle and the outer circle of the PP plastic plate are respectively polished, watering operation is carried out during polishing, deformation of the PP plastic plate caused by overhigh temperature during polishing is prevented, the groove depth is 45-55 mm during grooving in S3, the number of grooves is 70-80, grooves are uniformly grooved, the grooves are oblique grooves, installation and fixation of an oblique plate are facilitated, measurement and scribing are carried out during cutting in S4, and instable installation caused by non-uniform cutting is prevented.
It should be particularly noted that the material reinforced in S6 is a plastic rib plate or a fiber plate, the plastic rib plate is fixed at the bottom of the circular ring plate by screws, and then the plastic rib plate is bonded to the outer wall of the glass fiber reinforced plastic cylinder by solid glue, so as to reinforce the circular ring plate, prevent the circular ring plate from falling off, and prolong the service life.
The invention also provides a CN filter internal fixation inclined plate replacing glass fiber reinforced plastic materials, which comprises a circular ring-shaped plate 1, wherein the outer circumferential wall of the circular ring-shaped plate 1 is provided with a plurality of inclined strip grooves 2, the inclined strip grooves 2 are uniformly distributed, and one side of the circular ring-shaped plate 1 is fixed with a plurality of plastic rib plates 3 through bolts.
Example 4
Referring to fig. 1-2, a method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material comprises the following steps:
s1: preparing raw materials, namely a PP plastic plate and a plastic rib plate;
s2: processing, cutting by a circular cutting machine, and cutting the PP plastic plate into a circular plate with an inner circle of phi 300 and an outer circle of phi 600;
s3: slotting, namely slotting the periphery of the excircle of the cut PP plastic plate;
s4: cutting, namely uniformly cutting the annular PP plastic plate into two semicircular rings;
s5: sleeving and fixing, namely sleeving the two cut semicircular rings outside the glass fiber reinforced plastic cylinder through which the materials are introduced in the equipment, and welding the two separated semicircular rings into an original whole circular ring shape by using a plastic welding gun;
s6: reinforcing, namely reinforcing the welded circular plate by using materials;
s7: the installation, the swash plate is installed in the sloping groove can, replaces the subassembly in old and useless CN filter with the PP plastic slab, and perfect the subassembly in having replaced old and useless equipment has reached waste utilization's effect, the cost is reduced.
The thickness of the PP plastic plate in S1 is 6 mm, the PP plastic plate is checked before use, the PP plastic plate with cracks, scratches and depressions is screened out, the influence of unqualified raw material quality on subsequent installation work is prevented, polishing is carried out after cutting in S2, the inner circle and the outer circle of the PP plastic plate are respectively polished, water spraying operation is carried out during polishing, the PP plastic plate is prevented from being deformed due to overhigh temperature during polishing, the groove depth is 50 mm during grooving in S3, the number of grooves is 70-80, grooves are uniformly grooved, the grooves are oblique strip grooves, installation and fixation of an oblique plate are facilitated, measurement and scribing are carried out during cutting in S4, and instable installation due to non-uniform cutting are prevented.
It should be particularly noted that, in S6, when fixing, a plastic rib plate or a fiber plate adapted to the glass fiber reinforced plastic cylinder is selected, and then a rubber block is bonded to the inner side of the plastic rib plate or the fiber plate, one side of the rubber block is in contact with the outer wall of the glass fiber reinforced plastic cylinder, and the plastic rib plate or the fiber plate is fixed to the bottom of the circular ring plate by using screws to reinforce the circular ring plate, so as to prevent the circular ring plate from falling off and prolong the service life.
The invention also provides a CN filter internal fixation inclined plate replacing glass fiber reinforced plastic materials, which comprises a circular ring-shaped plate 1, wherein the outer circumferential wall of the circular ring-shaped plate 1 is provided with a plurality of inclined strip grooves 2, the inclined strip grooves 2 are uniformly distributed, and one side of the circular ring-shaped plate 1 is fixed with a plurality of plastic rib plates 3 through bolts.
It should be particularly noted that when the centrifugal liquid is mixed in the step S5, the centrifugal liquid and the reducing agent prepared in the step S2 are firstly reacted for 10-50 minutes, then the ferrous sulfate heptahydrate obtained in the step S3 is added for reaction for 10-40 minutes, heating is carried out during the reaction, the heating temperature is 40-60 ℃, a layer of reducing agent which is more reductive than the ferrous sulfate is coated on the surfaces of ferrous sulfate heptahydrate particles after the mixed reaction, the purpose of delaying the oxidative discoloration of the ferrous sulfate heptahydrate is achieved, the storage time is improved, the liquid separated by the centrifuge in the step S6 is subjected to tail-off water pressure filtration feeding storage tank treatment, when the detection is carried out in the step S7, sampling analysis is carried out after 10 days of storage, the content of Fe3+ is 0, the product is qualified without oxidative discoloration, the product is unqualified, when the product rate is unqualified and is over 2%, the reaction equipment is checked, the airtightness is detected after the, air is prevented from entering and affecting the storage time, and wax sealing treatment is performed at the sealing part when packaging is performed in S8, so that the normal use is prevented from being affected.
In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A method for fixing an inclined plate in a CN filter instead of a glass fiber reinforced plastic material is characterized by comprising the following steps:
s1: preparing raw materials, namely a PP plastic plate and a plastic rib plate;
s2: processing, cutting by a circular cutting machine, and cutting the PP plastic plate into a circular plate with an inner circle of phi 300 and an outer circle of phi 600;
s3: slotting, namely slotting the periphery of the excircle of the cut PP plastic plate;
s4: cutting, namely uniformly cutting the annular PP plastic plate into two semicircular rings;
s5: sleeving and fixing, namely sleeving the two cut semicircular rings outside the glass fiber reinforced plastic cylinder through which the materials are introduced in the equipment, and welding the two separated semicircular rings into an original whole circular ring shape by using a plastic welding gun;
s6: reinforcing, namely reinforcing the welded circular plate by using materials;
s7: and (4) mounting, namely mounting the inclined plate in the inclined groove.
2. The method for fixing the inclined plate in the CN filter instead of the FRP material, as claimed in claim 1, wherein the thickness of the PP plastic plate in S1 is 4-7 mm, and the PP plastic plate is inspected before use to screen out the PP plastic plate with cracks, scratches and potholes, so as to prevent the unqualified raw materials from affecting the subsequent installation work.
3. The method for fixing a swash plate in a CN filter instead of frp according to claim 1, wherein the cutting is followed by grinding in S2 to grind the inner and outer circles of the PP plastic plate, respectively.
4. The method as claimed in claim 1, wherein the grooves in S3 have a depth of 40-60 mm, the number of grooves is 60-80, the grooves are uniformly formed, and the grooves are slanted grooves to facilitate the installation and fixation of the swash plate.
5. The method for fixing the inclined plate in the CN filter instead of the glass fiber reinforced plastic material according to claim 1, wherein a measuring scribing line is performed during cutting in S4 to prevent unstable installation caused by uneven cutting.
6. The method for fixing the inclined plate in the CN filter instead of the FRP material of claim 1, wherein the S5 is fixed by a supporting block before welding to ensure balance.
7. The method for fixing the inclined plate in the CN filter instead of the FRP (fiber reinforced plastic) according to claim 1, wherein the material reinforced in S6 is a plastic rib plate or a fiberboard, the plastic rib plate is fixed at the bottom of the circular ring plate by using a screw, and then the plastic rib plate is adhered to the outer wall of the FRP cylinder by using solid glue.
8. The method according to claim 1, wherein in step S6, when fixing, a circular arc-shaped plastic rib plate or a fiber plate adapted to the glass fiber reinforced plastic cylinder is selected, and then a rubber block is bonded to the inner side of the plastic rib plate or the fiber plate, wherein one side of the rubber block is in contact with the outer wall of the glass fiber reinforced plastic cylinder, and the plastic rib plate or the fiber plate is fixed to the bottom of the circular ring plate by screws.
9. The utility model provides a replace fixed swash plate of glass steel material in CN filter, includes ring plate (1), its characterized in that, it has a plurality of sloping groove (2) to open on the outer periphery wall of ring plate (1), and sloping groove (2) are evenly distributed, and one side of ring plate (1) is fixed with a plurality of plastics gusset (3) through the bolt.
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| CN202011082240.2A CN112206574B (en) | 2020-10-12 | 2020-10-12 | Method for fixing inclined plate in CN filter instead of glass fiber reinforced plastic material |
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| CN202011082240.2A CN112206574B (en) | 2020-10-12 | 2020-10-12 | Method for fixing inclined plate in CN filter instead of glass fiber reinforced plastic material |
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| CN112206574B CN112206574B (en) | 2022-11-25 |
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