CN214486093U - High-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filtering bag - Google Patents
High-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filtering bag Download PDFInfo
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- CN214486093U CN214486093U CN202021406117.7U CN202021406117U CN214486093U CN 214486093 U CN214486093 U CN 214486093U CN 202021406117 U CN202021406117 U CN 202021406117U CN 214486093 U CN214486093 U CN 214486093U
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Abstract
The embodiment of the utility model discloses a high temperature resistant single cloth double net coating type strops super basalt fiber tectorial membrane acupuncture felt filter bag, which relates to the technical field of environmental protection filtration, the filter bag comprises a bag body, the bag body comprises a plurality of bag body units, the side surfaces of the plurality of bag body units are connected into a whole by sewing threads in sequence; one end of the bag body unit is provided with a bag opening, and the other end of the bag body unit is provided with a bag bottom; the bag body unit comprises an inner layer and an outer layer, and the inner layer and the outer layer are sewn into a whole through needling; the inner layer is woven by composite yarns made of basalt fibers and polytetrafluoroethylene fibers, and comprises a first felt net, a base cloth and a second felt net which are sequentially connected from inside to outside. The filter bag of the utility model adopts the composite yarn made of basalt fiber and polytetrafluoroethylene fiber to prepare the inner layer of the filter bag, thus overcoming the defects of no fiber curling, difficult processing and the like when the basalt fiber is independently woven; the filter bag has a plurality of bag body units, can increase filtration area, improves filtration efficiency.
Description
Technical Field
The embodiment of the utility model provides a relate to environmental protection filtration technology field, concretely relates to super basalt fiber tectorial membrane acupuncture felt filter bag is stroked to two net coating types of high temperature resistance list cloth.
Background
The needled felt filter bag is a key part in the operation process of the bag type dust collector, and the fabric and the design of the needled felt filter bag pursue the effects of high-efficiency filtration, easy dust stripping and durability as much as possible.
Most of the existing needled felt filter bags are made of base cloth made of polyester materials and short fibers, the filter effect is poor, the high temperature resistance and the corrosion resistance are poor, and the service life is shortened. The prior base cloth for the high-temperature needled filter felt is generally made of medium-alkali glass fibers and alkali-free glass fibers in inorganic fibers, or polyphenylene sulfide fibers, polytetrafluoroethylene fibers, polysulfonamide fibers, polyimide fibers and the like with higher temperature resistance in chemical fibers. The service temperature of the fibers is below 260 ℃, and the price of the high-temperature resistant chemical fibers is very expensive, so that the production cost of the filter felt is too high.
The basalt fiber is a novel high-performance inorganic fiber prepared by taking natural basalt ore as a raw material through a wire drawing process, and the diameter of the novel high-performance inorganic fiber is generally 7-13 mu m. The basalt fiber has better temperature resistance and acid and alkali resistance than glass fiber and other organic fibers, has the characteristics of no toxicity and harm to the environment, good high and low temperature resistance, high modulus, insulativity and the like, is low in price, and has good application prospect in the field of high-temperature filter materials.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a super basalt fiber tectorial membrane acupuncture felt filter bag is stroked to two net coating types of high temperature resistant list cloth to the filter effect that solves current filter bag existence is not good, and high temperature resistant and corrosion resisting property are not good, and life shortens the scheduling problem.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the first aspect of the embodiment of the utility model, a high temperature resistant single cloth double net coating type strops super basalt fiber tectorial membrane acupuncture felt filter bag, the filter bag comprises a bag body, the bag body comprises a plurality of bag body units, the side surfaces of the plurality of bag body units are connected into a whole side by side in sequence through sewing threads; one end of the bag body unit is provided with a bag opening, and the other end of the bag body unit is provided with a bag bottom; the bag body unit comprises an inner layer and an outer layer, and the inner layer and the outer layer are sewn into a whole through needling; the inner layer is formed by weaving composite yarns made of basalt fibers and polytetrafluoroethylene fibers, and comprises a first felt net, a base cloth and a second felt net which are sequentially connected from inside to outside.
By adopting the technical scheme, the inner layer of the filter bag is prepared by adopting the composite yarns made of the basalt fibers and the polytetrafluoroethylene fibers, so that the defects of no fiber curl, difficult processing and the like existing in the process of independently spinning the basalt fibers are overcome, the prepared filter bag has the advantages of high temperature resistance, acid and alkali resistance, moisture resistance, high strength and the like, the strength loss rate can be greatly reduced at the high temperature of 350 ℃ plus carbon atoms of 300 plus carbon atoms, and the service life of the filter bag is prolonged; the filter bag is divided into a plurality of bag body units, so that the filtering area can be increased, and the filtering efficiency is improved; the base cloth in the inner layer is a framework part of the inner layer filtering structure, an effective supporting effect is provided in the filtering process, the composite yarns in the first felt net, the base cloth and the second felt net are mutually staggered and interpenetrated to form an omnidirectional three-dimensional microporous structure, and a good filtering effect can be realized.
Furthermore, an organic film is coated on one surface of the second felt net, which is far away from the base cloth. Further, the organic film is a polytetrafluoroethylene film, a polyurethane film or a polyimide film.
Through the technical scheme, the reverse permeation of polluted smoke in the air inlet chamber into the filter bag caused by dust leakage of other filter bags can be prevented, and the filter bag cannot be blocked to influence the filtering effect.
Further, the pore size of the outer layer is larger than that of the inner layer; still further, the outer layer is of the same construction as the inner layer.
Through above-mentioned technical scheme, can make the flue gas filter step by step, realize more efficient filtration.
Further, the bag body unit is of a rhombic cylinder structure, a circular cylinder structure or an oval cylinder structure.
Through above-mentioned technical scheme, can increase the filter area of filter bag for the filter effect is higher, and filter fineness is bigger, more resistant dust impact. The dust layer is more uniform, the stripping rate is higher, and the service life is longer under the same weight.
Furthermore, a fixing ring is arranged on the bag opening, and the shape of the fixing ring is consistent with that of the bag opening; the bag mouth end is turned inwards to wrap the fixing ring, and then is folded and sewn on the bag body unit. Furthermore, a plurality of longitudinal reinforcing ribs are arranged in the bag body unit.
Through above-mentioned technical scheme, can prevent that the filter bag from taking place to warp, guarantee filtration area effectively.
Further, the twist of the composite yarn is 100-350 twist.
Further, the basalt fibers account for 50-99% of the composite yarn; the polytetrafluoroethylene fiber accounts for 1-50% of the composite yarn.
Further, the diameter of the basalt fiber is 5-13 microns; the polytetrafluoroethylene fibers have a diameter of 1-50 microns.
Further, the base cloth is twill or plain weave.
The embodiment of the utility model provides a have following advantage:
the embodiment of the utility model provides a high temperature resistant single cloth two net coating type stroll super basalt fiber tectorial membrane acupuncture felt filter bag adopts the composite yarn that basalt fiber and polytetrafluoroethylene fiber made to prepare the inlayer of filter bag, has overcome basalt fiber weaving alone and has the fibre not have shortcoming such as curl, difficult processing, and the filter bag of making has high temperature resistant, acid and alkali-resistance, moisture-proof and intensity advantage such as big, it can reduce the strength loss rate by a wide margin under 300 + 350 ℃ high temperature to prolong the life of filter bag; divide into a plurality of bag body units with the filter bag, can increase filter area, improve filtration efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of a three-dimensional structure of a high-temperature-resistant single-cloth double-mesh coating type super basalt fiber-coated needled felt filter bag body provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an inner layer provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a bag unit provided in embodiment 3 of the present invention;
fig. 4 is a top view of a bag body provided in embodiment 4 of the present invention;
in the figure: the bag comprises a bag body 1, a first felt net 2, a base cloth 3, a second felt net 4, an organic film 5, a fixing ring 6, a longitudinal reinforcing rib 7, a bag body unit 11, a bag opening 110 and a bag bottom 112.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The high-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filter bag shown in fig. 1-2 comprises a bag body 1, wherein the bag body 1 comprises three bag body units 11, and the side surfaces of the three bag body units 11 are sequentially connected in parallel into a whole through sewing threads; the bag body units 11 are rhombic cylinders, and the three bag body units 11 are connected into a whole in parallel along rhombic diagonal points;
one end of the bag body unit 11 is provided with a bag opening 110, and the other end is provided with a bag bottom 112; the bag body unit 11 comprises an inner layer and an outer layer, the inner layer and the outer layer are sewn into a whole through needling, the inner layer and the outer layer are made of the same material, but the pore diameter of the outer layer is larger than that of the inner layer; the inner layer is woven by composite yarns made of basalt fibers and polytetrafluoroethylene fibers, the inner layer comprises a first felt net 2, a base cloth 3 and a second felt net 4 which are sequentially connected from inside to outside, and the base cloth is twill.
The twist of the composite yarn is 100 twists, and the basalt fibers account for 50% of the composite yarn; the polytetrafluoroethylene fibers account for 50% of the composite yarn; the diameter of the basalt fiber is 5 micrometers; the polytetrafluoroethylene fibers have a diameter of 1 micron.
Example 2
The technical scheme of the embodiment is different from that of the embodiment 1, and other technical schemes are the same as those of the embodiment 1 except that the following technical scheme is different from that of the embodiment 1:
the bag body unit 11 is of a circular column or an elliptical column structure.
The base fabric is plain woven.
The side of the second felt 4 facing away from the base fabric 3 is coated with an organic film 5.
The twist of the composite yarn is 350 twists, and the basalt fibers account for 99% of the composite yarn; the polytetrafluoroethylene fibers account for 1% of the composite yarn; the diameter of the basalt fiber is 13 micrometers; the polytetrafluoroethylene fibers have a diameter of 50 microns.
Example 3
The technical solution of this embodiment, in addition to the technical solution of embodiment 1, further includes the following technical solutions:
as shown in fig. 3, a fixing ring 6 is arranged on the bag mouth 110, and the shape of the fixing ring 6 is consistent with that of the bag mouth 110; the bag mouth 110 is turned inwards to wrap the fixing ring 6, and then the fixing ring is folded and sewn on the bag body unit 11.
Four longitudinal reinforcing ribs 7 are arranged in the bag body unit 11. Four longitudinal reinforcing ribs 7 are respectively distributed along four corner points of the diamond.
Example 4
The technical solution of the present embodiment is different from embodiment 1 except that the following technical solution is different from embodiment 1, and other technical solutions are the same as embodiment 1:
as shown in fig. 4, the bag body 1 includes four bag body units 11, and the side surfaces of the four bag body units 11 are connected in parallel in sequence by sewing threads; the bag body units 11 are elliptic cylinders, and the four bag body units 11 are connected into a whole in parallel along the end points of the long axes of the ellipses.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The high-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filter bag is characterized by comprising a bag body (1), wherein the bag body (1) comprises a plurality of bag body units (11), and the side surfaces of the bag body units (11) are sequentially connected into a whole in parallel through sewing threads; one end of the bag body unit (11) is provided with a bag opening (110), and the other end is provided with a bag bottom (112); the bag body unit (11) comprises an inner layer and an outer layer, and the inner layer and the outer layer are sewn into a whole through needling; the inner layer is formed by weaving composite yarns and comprises a first felt net (2), a base fabric (3) and a second felt net (4) which are sequentially connected from inside to outside.
2. The high-temperature-resistant single-cloth double-net coating type stroking basalt fiber membrane needled felt filter bag according to claim 1, characterized in that one side of the second felt net (4) which is far away from the base cloth (3) is coated with an organic film (5).
3. The high temperature resistant single cloth double net coating type stroking basalt fiber membrane needled felt filter bag according to claim 1, wherein the pore size of the outer layer is larger than that of the inner layer.
4. The high-temperature-resistant single-cloth double-net coating type ultra-basalt fiber-coated needled felt filter bag according to claim 1, wherein the bag body unit (11) is of a rhombic cylinder structure, a circular cylinder structure or an oval cylinder structure.
5. The high-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filter bag according to claim 4, wherein a fixing ring (6) is arranged on the bag mouth (110), and the shape of the fixing ring (6) is consistent with that of the bag mouth (110); the bag mouth (110) end is turned inwards to wrap the fixing ring (6), and then is folded and sewn on the bag body unit (11).
6. The high-temperature-resistant single-cloth double-net coating type stroking basalt fiber membrane needled felt filter bag according to claim 5, wherein a plurality of longitudinal reinforcing ribs (7) are arranged in the bag body unit (11).
7. The high temperature resistant single cloth double net coating type stroking basalt fiber membrane needled felt filter bag according to claim 1, wherein the twist of the composite yarn is 100-350 twist.
8. The high temperature resistant single cloth double net coating type stroking basalt fiber membrane needled felt filter bag according to claim 1, wherein the base cloth is twill or plain weave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021406117.7U CN214486093U (en) | 2020-07-16 | 2020-07-16 | High-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filtering bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021406117.7U CN214486093U (en) | 2020-07-16 | 2020-07-16 | High-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filtering bag |
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| Publication Number | Publication Date |
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| CN214486093U true CN214486093U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021406117.7U Active CN214486093U (en) | 2020-07-16 | 2020-07-16 | High-temperature-resistant single-cloth double-net coating type super basalt fiber coated needled felt filtering bag |
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| CN (1) | CN214486093U (en) |
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