CN211358118U - High-temperature-resistant composite fiber needled filter felt - Google Patents
High-temperature-resistant composite fiber needled filter felt Download PDFInfo
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- CN211358118U CN211358118U CN201922234203.8U CN201922234203U CN211358118U CN 211358118 U CN211358118 U CN 211358118U CN 201922234203 U CN201922234203 U CN 201922234203U CN 211358118 U CN211358118 U CN 211358118U
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Abstract
The utility model relates to a dust removal filtration technology field discloses a high temperature resistant composite fiber acupuncture filter felt, and it includes the fibrous layer, and one side of fibrous layer is equipped with the base cloth layer, and the opposite side of fibrous layer is equipped with high temperature resistant layer, and one side that the fibrous layer was kept away from on high temperature resistant layer is equipped with the filter layer, and one side that high temperature resistant layer was kept away from to the filter layer is equipped with the supporting layer, and one side that the filter layer was kept away from to the supporting layer uses the supporting layer to keep away from the symmetry as the plane of symmetry, the utility model discloses have the effect that.
Description
Technical Field
The utility model belongs to the technical field of the dust removal filtration technique and specifically relates to a high temperature resistant composite fiber acupuncture filter felt is related to.
Background
The high-temperature resistant needled filter felt (P84) is widely applied to industries such as garbage incineration power plants, cement plants, steel plants, coal-fired boilers and the like. The P84 high-temperature resistant needled filter felt has the following three remarkable characteristics: 1. remarkable temperature resistance: the temperature is 260 ℃ for long-term use, and a safe space is provided for handling shutdown, accidents and the like. 2. Good chemical resistance: the filtering value of the P84 filter bag for acidic exhaust gases and alkaline dusts has been demonstrated in the past decade of waste incineration operations. 3. Low backwash pressure and high de-sliming cake efficiency: the characteristic of P84 is obvious because of the fineness of the fiber itself, and the irregular fiber cross section increases the fiber surface area to the maximum and provides a lot of tiny pores to make the surface filtering effect better than the depth filtering, the dust only stays on the surface of the needle filter felt and can not penetrate into the filter felt, therefore the reverse washing pressure is small and the filter cake ejection efficiency is improved obviously, it has the best collection efficiency of the tiny powder and the working pressure difference is small.
The traditional high-temperature resistant needled filter felt disclosed in Chinese patent with patent publication number CN207169244U comprises a dust facing layer, a supporting layer and a base cloth layer arranged between the dust facing layer and the supporting layer, wherein the dust facing layer is a fiber mesh cloth formed by interlacing and tangling acrylic fibers and acrylic fibers; the supporting layer is a fiber mesh cloth woven by polytetrafluoroethylene filaments through a carding and web forming process; the base cloth layer is a filtering base cloth formed by blending polyimide fibers and polyphenylene sulfide fibers in a certain blending ratio through a carding and net-forming process; the dust facing layer, the base cloth layer and the supporting layer are mutually hooked and fixed into a whole through trilobal needling with ball-end needle points, a reinforcing layer is arranged above the dust facing layer, and the reinforcing layer is a mixed layer with a net structure formed by entanglement of non-alkali glass fibers and high-performance fibers through carding and lapping processes in a random needle arrangement mode.
The above prior art solutions have the following drawbacks: the filter felt is only provided with the high-temperature-resistant fiber material, but the heat dissipation part is not provided, so that the heat can still stay on the filter felt or the heat dissipation speed is very slow, the temperature of the filter felt can be gradually increased, and the high-temperature-resistant effect of the filter felt is not favorably enhanced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high temperature resistant composite fiber acupuncture filter felt which improves the high temperature resistant effect of the filter felt.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a high temperature resistant composite fiber acupuncture filter felt, includes the fibrous layer, one side of fibrous layer is equipped with the base cloth layer, the opposite side of fibrous layer is equipped with high temperature resistant layer, high temperature resistant layer is kept away from one side of fibrous layer is equipped with the filter layer, the filter layer is kept away from one side on high temperature resistant layer is equipped with the supporting layer, the supporting layer is kept away from one side of filter layer with the supporting layer is the plane of symmetry.
Through adopting above-mentioned technical scheme, the gas that has impurity passes through the base cloth layer earlier, filter partial impurity, then carry out the secondary through the fibrous layer and filter, then here high temperature resistant layer protection is located inboard each layer, then gas is through the filter layer, carry out the filtration of fine dust, the supporting layer that is located the centre makes each layer can keep the roughness, be difficult to blow to the deformation by gas under the high temperature condition, composite fiber acupuncture filter felt sets up to the symmetrical layer, make composite fiber acupuncture filter felt once more carry out the filtration, improve its filterable effect, the supporting layer both sides all are equipped with high temperature resistant layer simultaneously, make high temperature resistant effect reinforcing.
The present invention may be further configured in a preferred embodiment as: the supporting layer is a metal filter screen.
Through adopting above-mentioned technical scheme, metal filters can play the effect of supporting the whole planarization of composite fiber acupuncture filter felt on the one hand, makes it be difficult to warp, and on the other hand metal can absorb heat, and high temperature resistance is stronger, and metal filters's edge can also dispel the heat in addition for composite fiber acupuncture filter felt's high temperature resistance effect reinforcing.
The present invention may be further configured in a preferred embodiment as: the periphery of the metal filter screen is provided with a metal reinforcing plate wrapping the edge of the composite fiber needled filter felt.
Through adopting above-mentioned technical scheme, the metal has better heat conductivility, and the gusset plate has increased the stability of composite fiber acupuncture filter felt on the one hand, and on the other hand has increased heat radiating area to make composite fiber acupuncture filter felt have better radiating effect, thereby improved its high temperature resistance effect.
The present invention may be further configured in a preferred embodiment as: and reinforcing ribs are arranged at the corners of the reinforcing plate.
Through adopting above-mentioned technical scheme, the strengthening rib is favorable to improving the stability of gusset plate to make the heat dispersion of composite fiber acupuncture filter felt week side obtain the guarantee.
The present invention may be further configured in a preferred embodiment as: and a reinforcing nail penetrating through the composite fiber needled filter felt is arranged in the middle of the metal filter screen.
Through adopting above-mentioned technical scheme for when blowing the gas that has the impurity to composite fiber acupuncture filter felt, its stability can be guaranteed to the filter felt, prevents that each layer warp because of receiving the high temperature influence.
The present invention may be further configured in a preferred embodiment as: the side wall of the reinforcing nail is provided with anti-skid grains.
Through adopting above-mentioned technical scheme, the frictional force between the lateral wall that the antiskid line has increased the reinforcement nail and each layer for it is more stable to reinforce the nail.
The present invention may be further configured in a preferred embodiment as: the fiber layer is formed by winding glass fibers in a staggered mode, and a rough surface layer is formed.
Through adopting above-mentioned technical scheme, the coarse surface that glass fiber formed is can filter more dust for the dust stops in anomalous fibrous layer, has reached better filter effect, and glass fiber's high temperature resistance can be better, is favorable to improving fibrous layer's high temperature resistant effect.
The present invention may be further configured in a preferred embodiment as: the base cloth layer is formed by weaving transversely staggered fiber yarns and forms a smooth surface layer.
Through adopting above-mentioned technical scheme, smooth surface makes the convenient clearance of the dust of piling up on this surface.
The present invention may be further configured in a preferred embodiment as: and a flame retardant is sprayed on one side of the base fabric layer, which is far away from the fiber layer.
By adopting the technical scheme, the flame retardant enables the base fabric layer to be nonflammable when receiving high temperature, thereby improving the high temperature resistance effect of the base fabric layer.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the base cloth layer firstly filters partial impurities, then the fiber layer filters gas still with the impurities, the high-temperature-resistant layer protects the layer positioned on the inner side, the partial heat is generated, then the gas passes through the filter layer, fine dust is filtered, the support layer is favorable for keeping the smoothness of the filter felt, so that the filter felt is not easy to deform under the high-temperature condition, the symmetrically arranged composite fiber acupuncture filter felt enables the gas to be filtered again, the filtering effect of the filter felt is improved, meanwhile, the heat dissipation area is also increased, and the high-temperature-resistant layers are arranged on the two sides of the support layer, so that the high-temperature-resistant effect of the support layer is enhanced;
2. the metal filter screen can support the composite fiber needled filter felt to be flat and not easy to deform, the metal can absorb heat and can bear higher temperature, the edge of the metal filter screen can radiate heat outwards, and the high temperature resistance of the composite fiber needled filter felt is improved;
3. utilize the heat conductivity of metal, the gusset plate has not only increased the holistic stability of composite fiber acupuncture filter felt, has increased metal filters's heat radiating area moreover, lets the radiating effect reinforcing of composite fiber acupuncture filter felt, has improved its high temperature resistance effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
fig. 2 is a schematic sectional view taken along a-a in fig. 1.
Reference numerals: 1. a fibrous layer; 2. a base cloth layer; 3. a high temperature resistant layer; 4. a filter layer; 5. a support layer; 6. a reinforcing plate; 7. reinforcing ribs; 8. reinforcing the nail; 9. anti-skid lines; 10. and (3) a flame retardant.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a high temperature resistant composite fiber acupuncture filter felt, wholly be quadrangular form, including fibrous layer 1, fibrous layer 1 is preferred to be square structure. The fiber layer 1 is formed by winding glass fibers in a staggered manner and forms a rough surface layer. One side of the fiber layer 1 is glued with a base cloth layer 2 matched with the fiber layer in size, and the glue is distributed on the peripheral side of the fiber layer 1. The base fabric layer 2 is woven from transversely interlaced fiber filaments and forms a smooth surface layer. The side of the base fabric layer 2 far away from the fiber layer 1 is sprayed with a fire retardant 10. The other side of fibrous layer 1 is glued and is had high temperature resistant layer 3, and one side that fibrous layer 1 was kept away from to high temperature resistant layer 3 is glued and is had filter layer 4, and one side that filter layer 4 was kept away from high temperature resistant layer 3 is glued and is had square supporting layer 5, and one side that supporting layer 5 kept away from filter layer 4 uses supporting layer 5 as the plane of symmetry.
The supporting layer 5 is a metal filter screen, and a metal reinforcing plate 6 wrapping the side wall of the composite fiber needled filter felt is welded at the periphery of the metal filter screen. The corners of the reinforcing plate 6 are provided with triangular reinforcing ribs 7 for improving the stability of the reinforcing plate 6. The reinforcing plate 6 is connected with the fiber layer 1, the base cloth layer 2, the high temperature resistant layer 3 and the filter layer 4 by gluing. The center of the metal filter screen is provided with a strip-shaped reinforcing nail 8 which penetrates through the composite fiber needled filter felt. The side wall of the reinforcing nail 8 is provided with the convex anti-slip lines 9 for increasing the friction force between the side wall of the reinforcing nail 8 and each layer, so that the reinforcing nail 8 is reinforced more stably. Both ends of the reinforcing nail 8 are square blocking pieces, so that the stability of fixing the reinforcing nail 8 is further improved.
The implementation principle of the embodiment is as follows: the gas with impurities sequentially passes through the base cloth layer 2, the fiber layer 1, the high temperature resistant layer 3, the filter layer 4, the support layer 5, the filter layer 4, the high temperature resistant layer 3, the fiber layer 1 and the base cloth layer 2. The symmetrical filter felt not only increases the thickness, but also increases the number of layers for filtering, so that the filtering effect is improved. The supporting layer 5 is a metal filter screen, and utilizes the heat-conducting property of metal, on one hand, the supporting filter felt is supported to be not easy to deform, and on the other hand, the high-temperature resistance of metal is stronger. In addition, the edge of the metal filter screen can also be used for heat dissipation, and then the reinforcing plate 6 wrapping the whole side wall of the filter felt is connected, so that the heat dissipation area is increased, and the high-temperature-resistant effect of the filter felt is further improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a high temperature resistant composite fiber acupuncture filter felt, includes fibrous layer (1), its characterized in that: one side of fibrous layer (1) is equipped with base cloth layer (2), the opposite side of fibrous layer (1) is equipped with high temperature resistant layer (3), high temperature resistant layer (3) are kept away from one side of fibrous layer (1) is equipped with filter layer (4), one side that filter layer (4) were kept away from high temperature resistant layer (3) is equipped with supporting layer (5), one side that supporting layer (5) were kept away from filter layer (4) with supporting layer (5) are the plane of symmetry.
2. The high temperature resistant composite fiber needled filter felt according to claim 1, characterized in that: the supporting layer (5) is a metal filter screen.
3. The high temperature resistant composite fiber needled filter felt according to claim 2, characterized in that: and a metal reinforcing plate (6) wrapping the edge of the composite fiber needled filter felt is arranged at the periphery of the metal filter screen.
4. The high temperature resistant composite fiber needled filter felt according to claim 3, characterized in that: and reinforcing ribs (7) are arranged at the corners of the reinforcing plate (6).
5. The high temperature resistant composite fiber needled filter felt according to claim 4, wherein: and a reinforcing nail (8) penetrating through the composite fiber needled filter felt is arranged in the middle of the metal filter screen.
6. The high temperature resistant composite fiber needled filter felt according to claim 5, wherein: the side wall of the reinforcing nail (8) is provided with anti-skid grains (9).
7. The high temperature resistant composite fiber needled filter felt according to claim 1, characterized in that: the fiber layer (1) is formed by winding glass fibers in a staggered mode and forms a rough surface layer.
8. The high temperature resistant composite fiber needled filter felt according to claim 1, characterized in that: the base cloth layer (2) is formed by weaving transversely staggered fiber yarns and forms a smooth surface layer.
9. The high temperature resistant composite fiber needled filter felt according to claim 1, characterized in that: and a flame retardant (10) is sprayed on one side of the base fabric layer (2) far away from the fiber layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922234203.8U CN211358118U (en) | 2019-12-12 | 2019-12-12 | High-temperature-resistant composite fiber needled filter felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922234203.8U CN211358118U (en) | 2019-12-12 | 2019-12-12 | High-temperature-resistant composite fiber needled filter felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211358118U true CN211358118U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922234203.8U Active CN211358118U (en) | 2019-12-12 | 2019-12-12 | High-temperature-resistant composite fiber needled filter felt |
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| Country | Link |
|---|---|
| CN (1) | CN211358118U (en) |
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