CN213159810U - High temperature resistant smooths super dust removal filter bag - Google Patents
High temperature resistant smooths super dust removal filter bag Download PDFInfo
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- CN213159810U CN213159810U CN202021404119.2U CN202021404119U CN213159810U CN 213159810 U CN213159810 U CN 213159810U CN 202021404119 U CN202021404119 U CN 202021404119U CN 213159810 U CN213159810 U CN 213159810U
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Abstract
The utility model discloses a high temperature resistant super dust removing filter bag, wherein the upper end of the filter bag is open and the lower end is flat closed; the filter bag is provided with an inner layer and an outer layer from inside to outside, and the inner layer and the outer layer are sewn into a whole through needling; the inner layer is formed by weaving composite fibers made of basalt fibers and polytetrafluoroethylene fibers, and comprises a first base cloth, a felt net and a second base cloth which are sequentially connected from inside to outside. The utility model relates to a high temperature resistant smooths super dust removal filter bag adopts the design that the upper end is open-ended and the lower end is flat closed, so that when in use, the filter bag can reduce air inlet resistance and updraft resistance on one hand and is beneficial to autonomous ash removal on the other hand; the inner layer of the filter bag is prepared from composite fibers made of basalt fibers and polytetrafluoroethylene fibers, so that the filter bag has the advantages of high temperature resistance, acid and alkali resistance, moisture resistance, high strength and the like.
Description
Technical Field
The utility model relates to an environmental protection filtration technology field, concretely relates to high temperature resistant smooths super dust removal filter bag.
Background
The dust-removing filter bag is an important component of the bag-type dust collector, and purified gas enters the box body through the filter bag and is discharged from the air outlet. However, the working environment of some dust filter bags is in a high-temperature environment, and the common dust filter bag cannot adapt to the working environment.
The high-temperature-resistant ultra-dust removing filter bag is also available in the market, but has the problems of single structure, difficulty in dust removal, small filter area, low filter efficiency and the like, in addition, the high-temperature-resistant ultra-dust removing filter bag is made of base cloth, generally, 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 high 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 high, so that the production cost of the high-temperature-resistant filter bags 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 utility model provides a super dust removal filter bag is pacified to high temperature resistance to solve deashing difficulty, the low scheduling problem of filtration efficiency that current dust removal filter bag exists.
In order to achieve the above object, the present invention provides the following technical solutions:
according to the first aspect of the utility model, the upper end of the filter bag is open and the lower end is flat closed; the filter bag is provided with an inner layer and an outer layer from inside to outside, and the inner layer and the outer layer are sewn into a whole through needling; the inner layer is formed by weaving composite fibers made of basalt fibers and polytetrafluoroethylene fibers, and comprises a first base cloth, a felt net and a second base cloth which are sequentially connected from inside to outside.
Through the technical scheme, the filter bag adopts the design that the upper end is open-ended and the lower end is flat closed, so that the filter bag can reduce air inlet resistance and ascending air flow resistance when in use, and is favorable for independent ash removal. The inner layer is formed by a three-layer structure, so that the strength of the filter bag can be further improved, and the service life of the filter bag can be further prolonged; the inner layer of the filter bag is prepared from the composite fiber prepared from the basalt fiber and the polytetrafluoroethylene fiber, the defects of no fiber curl, difficult processing and the like existing in the process of independently spinning the basalt fiber 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 300-350 ℃, and the service life of the filter bag is prolonged.
Further, the upper end of the filter bag is in a round or diamond or polygonal opening shape.
Furthermore, the upper end of the filter bag is provided with a bag opening, and a support framework is arranged in the bag opening.
Furthermore, the lower end of the filter bag is turned over to one side and is sewn on the filter bag through a suture line to form a flat closed shape.
Further, the twist of the composite fiber is 100-350 twist.
Further, the basalt fibers account for 50-99% of the composite fibers; the polytetrafluoroethylene fiber accounts for 1-50% of the composite fiber.
Further, the diameter of the basalt fiber is 5-13 microns; the polytetrafluoroethylene fibers have a diameter of 1-50 microns.
Further, the first base cloth or the second base cloth is twill or plain.
Through above-mentioned technical scheme, first base cloth and second base cloth provide effectual supporting role in the filter bag filtration process. Adopt two-layer base cloth to make the filter bag more stable, improve its life, the design of twill or plain weave is more favorable to laying of felt-net.
Further, the felt is formed by cross-lapping.
By adopting the technical scheme, the longitudinal and transverse strength of the felt net can be equivalent by adopting a cross lapping mode.
The utility model has the advantages of as follows:
the utility model relates to a high temperature resistant smooths super dust removal filter bag adopts the design that the upper end is open-ended and the lower end is flat closed, so that when in use, the filter bag can reduce air inlet resistance and updraft resistance on one hand and is beneficial to autonomous ash removal on the other hand; the filter bag adopts composite fibers made of basalt fibers and polytetrafluoroethylene fibers to prepare the inner layer of the filter bag, overcomes the defects that the fibers are not curled and are difficult to process and the like when the basalt fibers are independently woven, and ensures that the prepared filter bag has the advantages of high temperature resistance, acid and alkali resistance, moisture resistance, high strength and the like; set up the intensity that inlayer and outer bilayer structure can improve the filter bag, the inlayer comprises three layer construction, can further improve the intensity of filter bag, and then can prolong the life of filter bag.
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 structural view of a high temperature resistant ultra-dust removal filter bag provided by the utility model 1;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural diagram of the inner layer provided in the present invention 1;
in the figure: the cloth comprises a first base cloth 1, a felt net 2, a second base cloth 3, bag openings 4, a supporting framework 5 and a sewing line 6.
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 upper end of the high-temperature-resistant super-soothing dust-removing filter bag shown in the figures 1-3 is in a circular opening shape, and the lower end is in a flat closed shape; the upper end of filter bag is provided with sack 4, be provided with three support chassis 5 in the sack 4, support chassis 5's shape is circular, stabilizes into circular through support chassis 5 with the sack 4 of filter bag, makes things convenient for the installation of filter bag on the card, and three support chassis 5 sets gradually along the length direction of filter bag, can guarantee the stable installation of filter bag on the card, is difficult for droing.
The lower end of the filter bag is turned over to one side and is sewn on the filter bag through a suture line 6 to form a flat closed shape.
The filter bag is provided with an inner layer and an outer layer from inside to outside, and the inner layer and the outer layer are sewn into a whole through needling; the inner layer is formed by weaving composite fibers made of basalt fibers and polytetrafluoroethylene fibers, and comprises a first base cloth 1, a felt net 2 and a second base cloth 3 which are sequentially connected from inside to outside. The first base cloth 1 or the second base cloth 3 is twill or plain. The felt 2 is formed by cross-lapping. Through the technical scheme, the first base cloth 1 and the second base cloth 3 provide effective supporting function in the filtering process of the filter bag, the filter bag is more stable by adopting two layers of base cloth, the service life of the filter bag is prolonged, and the design of twill is more beneficial to the laying of a felt net; the felt net 2 adopts a cross lapping mode to ensure that the longitudinal strength and the transverse strength of the felt net are equivalent.
The outer layer and the inner layer have the same structure, and the pore diameter of the outer layer is larger than that of the inner layer. Through above-mentioned technical scheme, can make the flue gas filter step by step, realize more efficient filtration.
Example 2
The technical solution of this embodiment includes, in addition to all the technical solutions of embodiment 1, the following technical solutions:
the twist of the composite fiber is 100-350 twist.
The basalt fibers account for 50-99% of the composite fibers; the polytetrafluoroethylene fiber accounts for 1-50% of the composite fiber.
The diameter of the basalt fiber is 5-13 microns; the polytetrafluoroethylene fibers have a diameter of 1-50 microns.
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 (9)
1. A high-temperature-resistant ultra-dust-removing filter bag is characterized in that the upper end of the filter bag is open, and the lower end of the filter bag is flat and closed; the filter bag is provided with an inner layer and an outer layer from inside to outside, and the inner layer and the outer layer are sewn into a whole through needling; the inner layer is formed by weaving composite fibers made of basalt fibers and polytetrafluoroethylene fibers, and comprises a first base cloth (1), a felt net (2) and a second base cloth (3) which are sequentially connected from inside to outside.
2. The high temperature resistant superfinishing filter bag of claim 1, wherein the upper end of the bag is circular or diamond or polygonal open.
3. The high-temperature-resistant ultra-high-dust-removing filter bag as claimed in claim 1 or 2, wherein the upper end of the filter bag is provided with a bag opening (4), and a support framework (5) is arranged in the bag opening (4).
4. The high temperature resistant super dust removing filter bag according to claim 1, wherein the lower end of the filter bag is turned over to one side and is sewed on the filter bag by a sewing thread (6) to form a flat closed shape.
5. The high temperature resistant dust filter bag according to claim 1, wherein the twist of the composite fiber is 100 and 350 twists.
6. The high temperature resistant dust filter bag according to claim 1, wherein the basalt fiber accounts for 50-99% of the composite fiber; the polytetrafluoroethylene fiber accounts for 1-50% of the composite fiber.
7. The high temperature resistant superfinishing filter bag of claim 1, wherein the basalt fibers are 5-13 microns in diameter; the polytetrafluoroethylene fibers have a diameter of 1-50 microns.
8. The high temperature resistant fulling dust filter bag according to claim 1, wherein said first base fabric (1) or said second base fabric (3) is twill or plain.
9. A high temperature resistant fulgure filter bag according to claim 1 wherein said felt web (2) is formed by cross-lapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021404119.2U CN213159810U (en) | 2020-07-16 | 2020-07-16 | High temperature resistant smooths super dust removal filter bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021404119.2U CN213159810U (en) | 2020-07-16 | 2020-07-16 | High temperature resistant smooths super dust removal filter bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213159810U true CN213159810U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021404119.2U Active CN213159810U (en) | 2020-07-16 | 2020-07-16 | High temperature resistant smooths super dust removal filter bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213159810U (en) |
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2020
- 2020-07-16 CN CN202021404119.2U patent/CN213159810U/en active Active
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