CN220478407U - Gas-solid separation material structure for polyethylene synthesis process - Google Patents
Gas-solid separation material structure for polyethylene synthesis process Download PDFInfo
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- CN220478407U CN220478407U CN202321955982.0U CN202321955982U CN220478407U CN 220478407 U CN220478407 U CN 220478407U CN 202321955982 U CN202321955982 U CN 202321955982U CN 220478407 U CN220478407 U CN 220478407U
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- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000000926 separation method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 21
- -1 polyethylene Polymers 0.000 title claims abstract description 21
- 239000007787 solid Substances 0.000 title claims abstract description 21
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 18
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000002121 nanofiber Substances 0.000 claims abstract description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 22
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000001467 acupuncture Methods 0.000 claims 3
- 239000002131 composite material Substances 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a gas-solid separation material structure for a polyethylene synthesis process, which comprises an upper layer of metal wire woven mesh and a lower layer of metal wire woven mesh, wherein a non-woven fabric, a nanofiber membrane layer, a PTFE (polytetrafluoroethylene) substrate layer and a needled felt supporting layer are sequentially clamped between the two layers of metal wire woven mesh, the upper surface of the non-woven fabric is attached to the metal wire woven mesh, the lower surface of the non-woven fabric is attached to the upper surface of the nanofiber membrane layer, the lower surface of the nanofiber membrane layer is attached to the upper surface of the PTFE substrate layer, the lower surface of the PTFE substrate layer is attached to the upper surface of the needled felt supporting layer, and the lower surface of the needled felt supporting layer is attached to the metal wire woven mesh. The upper side and the lower side of the inherent organic composite material are added through the metal wire woven net, so that the strength and the wear resistance of the organic composite material are improved, meanwhile, the organic composite material is adopted as a filter layer, and the temperature resistance and the corrosion resistance of the separation material are improved, so that the filtering efficiency of the separation material is improved.
Description
Technical Field
The utility model relates to a gas-solid separation material structure for a polyethylene synthesis process.
Background
At present, in the processes of organic matter polymerization reaction (such as polyethylene synthesis) and the like, high temperature and high corrosion phenomena exist, fine dust, oily liquid drops, fine floccules and the like are often mixed in gas, filter materials are easy to block, and the problems of low filtration efficiency caused by poor temperature difference resistance, poor corrosion resistance and low strength of the existing gas-solid separation materials generally exist due to the reasons of materials or treatment processes, so that the use effect of the gas-solid separation materials is greatly influenced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.
The utility model aims to solve the technical problems of low filtration efficiency caused by poor temperature difference resistance and corrosion resistance and low strength of the traditional filter material.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a gas-solid separation material structure for polyethylene synthetic process, includes upper and lower two-layer wire woven mesh, presss from both sides in proper order in the middle of two-layer wire woven mesh and is equipped with non-woven fabrics, nanofiber rete, PTFE substrate layer and needled felt supporting layer, the upper surface of non-woven fabrics laminates mutually with the wire woven mesh, the lower surface of non-woven fabrics covers mutually with the upper surface of nanofiber rete, the lower surface of nanofiber rete covers mutually with the upper surface of PTFE substrate layer and closes, the lower surface of PTFE substrate layer laminates mutually with the upper surface of needled felt supporting layer, the lower surface of needled felt supporting layer laminates mutually with the wire woven mesh.
As a preferred embodiment of the gas-solid separation material structure for polyethylene synthesis process according to the present utility model, wherein: the metal wire woven net is a grid-shaped protective net made of stainless steel, so that the strength and the wear resistance of the middle organic composite material are improved, and the filtering efficiency of the separation material is improved.
As a preferred embodiment of the gas-solid separation material structure for polyethylene synthesis process according to the present utility model, wherein: the mesh width of the metal wire woven net is 0.5-1cm, and the wire diameter of the metal wire is 0.5-1mm.
As a preferred embodiment of the gas-solid separation material structure for polyethylene synthesis process according to the present utility model, wherein: the thickness of the nanofiber membrane layer is 0.3-0.8 mu m, and the pore diameter range is 0.1-0.5 mu m.
As a preferred embodiment of the gas-solid separation material structure for polyethylene synthesis process according to the present utility model, wherein: the thickness of the PTFE substrate layer is 1-2mm.
As a preferred embodiment of the gas-solid separation material structure for polyethylene synthesis process according to the present utility model, wherein: the thickness of the needled felt supporting layer is 0.5-1.5mm, and the radial and weft breaking strength is more than 90N/mm.
The beneficial effects are that: the upper side and the lower side of the inherent organic composite material are added through the metal wire woven net, so that the strength and the wear resistance of the organic composite material are improved, meanwhile, the nanofiber membrane layer, the PTFE substrate layer and the needled felt supporting layer are sequentially compounded into the filter layer, the thickness is gradually increased, the structure of the separation material is ensured to have enough strength, and meanwhile, the temperature resistance and the corrosion resistance of the separation material are also improved, so that the filtering efficiency of the separation material is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of the overall structure of a gas-solid separation material structure for use in a polyethylene synthesis process.
In the figure: 1. a metal wire woven mesh; 2. a nonwoven fabric; 3. a nanofiber membrane layer; 4. a PTFE substrate layer; 5. and needling the felt support layer.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Referring to fig. 1, this embodiment provides a gas-solid separation material structure for polyethylene synthetic process, including upper and lower two-layer wire mesh 1, double-layer wire mesh 1 intermediate in proper order presss from both sides and is equipped with non-woven fabrics 2, nanofiber rete 3, PTFE substrate layer 4 and needled felt supporting layer 5, the upper surface of non-woven fabrics 2 is laminated with wire mesh 1 mutually, the lower surface of non-woven fabrics 2 is laminated with the upper surface of nanofiber rete 3 mutually, the lower surface of nanofiber rete 3 is laminated with the upper surface of PTFE substrate layer 4 mutually, the lower surface of PTFE substrate layer 4 is laminated with the upper surface of needled felt supporting layer 5 mutually, the lower surface of needled felt supporting layer 5 is laminated with wire mesh 1 mutually.
The separating material structure mainly comprises an upper layer metal wire woven net 1, a non-woven fabric 2, a nanofiber membrane layer 3, a PTFE substrate layer 4 and a needled felt supporting layer 5, wherein the non-woven fabric 2 is attached to the lower surface of the upper layer metal wire woven net 1, the nanofiber membrane layer 3 is attached to the lower surface of the non-woven fabric 2, the non-woven fabric 2 is clamped between the nanofiber membrane layer 3 and the metal wire woven net 1, so that abrasion of the nanofiber membrane layer 3 caused by the metal wire woven net 1 is prevented, the PTFE substrate layer 4 is covered on the lower surface of the nanofiber membrane layer 3, the needled felt supporting layer 5 is attached to the lower surface of the PTFE substrate layer 4, the needled felt supporting layer 5 is attached to the lower surface of the lower layer metal wire woven net 1, the upper side and the lower side of an inherent organic composite material are added through the metal wire woven net 1, so that the strength and the abrasion resistance of the organic composite material are improved, the thickness of the separating material structure is gradually increased, the filtering layer is ensured to have enough strength while the filtering efficiency is ensured, and the adopted novel carbon-saving separating material is reduced.
Specifically, the metal wire woven net 1 is a grid-shaped protective net made of stainless steel; the metal wire mesh grid 1 in the embodiment adopts a grid-shaped protective grid made of stainless steel, so that the metal wire mesh grid 1 improves the filtering efficiency of the separation material while ensuring the strength and the wear resistance of the organic composite material in the middle of the metal wire mesh grid.
The mesh width of the metal wire woven net 1 is 0.5-1cm, the wire diameter of the metal wire is 0.5-1mm, the thickness of the nanofiber membrane layer 3 is 0.3-0.8 mu m, the aperture range is 0.1-0.5 mu m, the thickness of the PTFE substrate layer 4 is 1-2mm, the thickness of the needled felt supporting layer 5 is 0.5-1.5mm, and the radial and weft breaking strength is more than 90N/mm.
Preferably, the mesh width of the metal wire woven net 1 is 1cm, the wire diameter of the metal wire is 1mm, the thickness of the nanofiber membrane layer 3 is 0.5 mu m, the average pore diameter is 0.22 mu m, the thickness of the PTFE substrate layer 4 is 1mm, the thickness of the needled felt supporting layer 5 is 1.2mm, the radial breaking strength is 98N/mm, and the weft breaking strength is 105N/mm, so that the filtering property and the high-temperature and corrosion resistance of the separation material are improved, the running resistance of the separation material is reduced, the service life of the separation material is prolonged, and the separation material is suitable for gas-solid separation under complex working conditions such as a polyethylene synthesis process.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (6)
1. A gas-solid separation material structure for polyethylene synthesis process, which is characterized in that: including upper and lower two-layer wire mesh grid (1), double-layer wire mesh grid (1) centre presss from both sides in proper order and is equipped with non-woven fabrics (2), nanofiber rete (3), PTFE substrate layer (4) and acupuncture felt supporting layer (5), the upper surface of non-woven fabrics (2) is laminated mutually with wire mesh grid (1), the lower surface of non-woven fabrics (2) covers with the upper surface of nanofiber rete (3), the lower surface of nanofiber rete (3) covers with the upper surface of PTFE substrate layer (4), the lower surface of PTFE substrate layer (4) is laminated mutually with the upper surface of acupuncture felt supporting layer (5), the lower surface of acupuncture felt supporting layer (5) is laminated mutually with wire mesh grid (1).
2. A gas-solid separation material structure for a polyethylene synthesis process according to claim 1, wherein: the metal wire woven net (1) is a grid-shaped protective net made of stainless steel.
3. A gas-solid separation material structure for a polyethylene synthesis process according to claim 1, wherein: the mesh width of the metal wire woven net (1) is 0.5-1cm, and the wire diameter of the metal wire is 0.5-1mm.
4. A gas-solid separation material structure for a polyethylene synthesis process according to claim 3, wherein: the thickness of the nanofiber membrane layer (3) is 0.3-0.8 mu m, and the pore diameter range is 0.1-0.5 mu m.
5. The gas-solid separation material structure for polyethylene synthesis process according to claim 4, wherein: the thickness of the PTFE base material layer (4) is 1-2mm.
6. The gas-solid separation material structure for polyethylene synthesis process according to claim 5, wherein: the thickness of the needled felt supporting layer (5) is 0.5-1.5mm, and the radial and weft fracture strength is more than 90N/mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955982.0U CN220478407U (en) | 2023-07-24 | 2023-07-24 | Gas-solid separation material structure for polyethylene synthesis process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955982.0U CN220478407U (en) | 2023-07-24 | 2023-07-24 | Gas-solid separation material structure for polyethylene synthesis process |
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| Publication Number | Publication Date |
|---|---|
| CN220478407U true CN220478407U (en) | 2024-02-13 |
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| CN202321955982.0U Active CN220478407U (en) | 2023-07-24 | 2023-07-24 | Gas-solid separation material structure for polyethylene synthesis process |
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- 2023-07-24 CN CN202321955982.0U patent/CN220478407U/en active Active
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