Needle-punched non-woven fabric pleated filter bag for iron and steel industry

Abstract

The utility model relates to the technical field of non-woven fabric pleated filter bags, and discloses a needle punched non-woven fabric pleated filter bag for iron and steel industry, which comprises a filter bag main body, a support frame is arranged in the filter bag main body, a fixed block is fixed on the support frame close to the open end of the filter bag main body, a plurality of sliding blocks are fixed on the support frame, and the sliding blocks are fixed on the fixed block. According to the filter bag disclosed by the utility model, the support frame is arranged in the filter bag main body, and the first support rods are arranged at the periphery of the support frame, so that a worker pulls the screw rod to enable the screw rod to drive the first support rods to move, so that the first support rods are vertical to the support frame to support the filter bag main body, and the screw rod is fixed on the fixing plate through the screw cap; the problem that the service life of the filter bag is influenced due to the fact that the filter bag is easy to deform or collapse under the action of external force in a high-flow or high-pressure environment in the use process because the interior of the traditional filter bag is not supported is solved.

Description

Technical Field

[0001] The utility model application relates to the technical field of non-woven fabric pleated filter bags, in particular to a needle-punched non-woven fabric pleated filter bag for the steel industry. Background Art

[0002] The iron and steel industry is an industrial industry that mainly engages in industrial production activities such as ferrous metal mining and ferrous metal smelting and processing. It includes mineral mining of metallic iron, chromium, manganese, etc., ironmaking, steelmaking, steel processing, ferroalloy smelting, steel wire and its products industry and other sub-industries. It is one of the country's important raw material industries. In addition, since steel production also involves other industrial categories such as non-metallic mineral mining and products, such as coking, refractory materials, carbon products, etc., these industrial categories are usually included in the scope of the iron and steel industry.

[0003] With the continuous development of the steel industry, the demand for efficient and durable filtering equipment is growing. As an important filtering equipment in the steel production process, the performance of filter bags directly affects the production efficiency and product quality. However, traditional filter bags have no internal support, which makes the filter bags susceptible to external forces and deformation or collapse in high flow or high pressure environments during use, thereby affecting the service life of the filter bags. In order to solve this problem, the present invention proposes a new patent for needle-punched non-woven pleated filter bags for the steel industry. Summary of the invention

[0004] In order to solve the problem that traditional filter bags have no internal support, which makes the filter bags easily deformed or collapsed by external forces when in high flow or high pressure environments during use, thereby affecting the service life of the filter bags, the utility model provides a needle-punched non-woven fabric pleated filter bag for the steel industry to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A needle-punched non-woven pleated filter bag for the steel industry includes a filter bag main body, wherein a support frame is arranged inside the filter bag main body, and a fixed block is fixed to the support frame near the open end of the filter bag main body, and a plurality of sliding blocks are fixed on the support frame, and a plurality of first support rods are arranged in the middle part of the support frame and at one end near the fixed block, and each of the first support rods is rotatably connected to the sliding block at one end near the support frame, and each of the sliding blocks is fixed with a limiting plate at one end near the fixed block, and the limiting plate is affixed to one side of the first support rod, and each two of the first support rods are slidably connected to a first sliding rod, and each of the first sliding rods is fixed with a screw at one end near the fixed block, and a fixing plate is provided around one end of the support frame near the fixed block, the first sliding rod is slidably connected to the inside of the fixing plate, a nut is provided on the screw thread sleeve, and a fixing ring is fixed on one end of the filter bag main body near the fixed block.

[0007] Furthermore, a second support rod is provided on each of the four sliding blocks away from the fixed block, and the second support rod is rotatably connected to the sliding block at one end close to the sliding block, and a sliding plate is fixed around one end of the support frame close to the second support rod, and a second sliding rod is provided on the sliding plate, and the second sliding rod is slidably connected to the second support rod and the inside of the sliding plate, and a spring is provided between the sliding plate and the second support rod, and the spring is sleeved on the second sliding rod.

[0008] Furthermore, a baffle is provided on each of the first slide bars located on a side of the first support bar away from the fixed block, and a square limiting rod is provided above the first slide bar between two opposite first support bars.

[0009] Furthermore, an opening matching the shape of the fixing block is provided in the middle of the fixing ring, and the fixing ring is threadedly connected to the opening end of the filter bag body.

[0010] Furthermore, the limiting plate is perpendicular to the supporting frame, and a surface of the limiting plate close to the first supporting rod is in contact with the first supporting rod.

[0011] Furthermore, the second support rod is provided with an arc surface on the top surface of the first support rod, the second support rod is the same length as the first support rod, and the length of the second support rod between the first support rod is greater than the length of the second support rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a support frame is installed inside the filter bag body, and a first support rod is installed around the support frame, so that the staff can pull the screw rod to make the screw rod drive the first support rod to move, so that the first support rod is perpendicular to the support frame, the filter bag body is propped up, and the screw rod is fixed to the fixing plate by a nut, so as to solve the problem that the traditional filter bag has no support inside, which makes the filter bag easily deformed or collapsed by external force when a high flow or high pressure environment occurs during use, thereby affecting the service life of the filter bag.

[0014] 2. In the utility model, a second support rod is arranged at the rear end of the support frame, and the second slide rod slides inside the second support rod. At the same time, a spring is sleeved on the second slide rod, so that the second support rod can be conveniently and flexibly unfolded. When the filter bag body is placed inside the dust removal bin, the second support rod flexibly expands the rear end of the filter bag body to a corresponding size according to the space at the rear end of the dust removal bin, thereby avoiding the problem of continuous pressure on the rear end of the filter bag body due to excessive expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 is a schematic diagram of a three-dimensional structure according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the structure after opening in the embodiment shown;

[0018] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the support structure in the embodiment shown;

[0019] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the spring support structure in the illustrated embodiment.

[0020] The meanings of the reference numerals in the figure are as follows: 1. filter bag body; 2. support frame; 3. fixed block; 4. sliding block; 5. second support rod; 6. first support rod; 7. sliding plate; 8. second slide rod; 9. spring; 10. limit plate; 11. first slide rod; 12. fixed plate; 13. screw rod; 14. nut; 15. fixing ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A needle-punched non-woven pleated filter bag for the steel industry includes a filter bag body 1, a support frame 2 is arranged inside the filter bag body 1, a fixed block 3 is fixed to the support frame 2 near the open end of the filter bag body 1, a plurality of sliding blocks 4 are fixed to the support frame 2, a plurality of first support rods 6 are arranged at the middle part of the support frame 2 and at one end near the fixed block 3, each of the first support rods 6 is rotatably connected to the sliding block 4 at one end near the support frame 2, and a limiting plate is fixed to one end of each spreading sliding block 4 near the fixed block 3 10, the limit plate 10 is fitted on one side of the first support rod 6, and a first slide rod 11 is slidably connected to every two first support rods 6, and a screw 13 is fixed to one end of each first slide rod 11 close to the fixed block 3. A fixed plate 12 is provided around one end of the support frame 2 close to the fixed block 3, and the first slide rod 11 is slidably connected to the inside of the fixed plate 12. A nut 14 is threadedly sleeved on the screw 13, and a fixing ring 15 is fixed on one side of the filter bag body 1 close to the fixed block 3, so that the first support rod 6 opens the filter bag body 1.

[0023] Specifically, a baffle is provided on the first slide bar 11 on the side of the first support bar 6 away from the fixed block 3, and a square limit rod is provided above the first slide bar 11 between the two opposite first support bars 6, so that the first slide bar 11 pushes the first support bar 6, and an opening matching the shape of the fixed block 3 is provided in the middle of the fixing ring 15, and the fixing ring 15 is threadedly connected to the open end of the filter bag body 1, so that the fixing ring 15 fixes the support frame 2, and the limit plate 10 is perpendicular to the support frame 2, and a side of the limit plate 10 close to the first support bar 6 is in contact with the first support bar 6, so that the first support bar 6 is perpendicular to the support frame 2.

[0024] As an optimization solution, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the four sliding blocks 4 away from the fixed block 3 are all provided with a second support rod 5, and the second support rod 5 is rotatably connected to the sliding block 4 at one end close to the sliding block 4, and a sliding plate 7 is fixed around one end of the support frame 2 close to the second support rod 5, and a second slide rod 8 is provided on the sliding plate 7. The second slide rod 8 is slidably connected to the second support rod 5 and the inside of the sliding plate 7, and a spring 9 is provided between the sliding plate 7 and the second support rod 5, and the spring 9 is sleeved on the second slide rod 8, so that the second support rod 5 opens the rear end of the filter bag body 1.

[0025] Specifically, the second support rod 5 is provided with an arc surface on the top surface of the first support rod 6. The second support rod 5 has the same length as the first support rod 6. The length between the second support rod 5 and the first support rod 6 is greater than the length of the second support rod 5. When the second support rod 5 and the first support rod 6 are folded, they will not block each other.

[0026] Working principle: put the support frame 2 into the filter bag body 1 from the opening of the filter bag body 1, then put the filter bag body 1 into the dust removal bin, pull the screw 13, so that the screw 13 drives the first slide bar 11 to move to the outside of the filter bag body 1, at this time the first slide bar 11 slides inside the first support bar 6, so that the first slide bar 11 drives the two first support bars 6 to move, at this time one end of the first support bar 6 slides inside the sliding block 4, so that the first support bar 6 is pulled up, so that the first support bar 6 is perpendicular to the support frame 2, the filter bag body 1 is opened, and then the nut 14 is threadedly sleeved on the screw 13, so that the screw 13 limits and fixes the nut 14, so that the first slide bar 11 is on the first support bar 6 The support is fixed, and the limit plate 10 limits the first support rod 6 to prevent the first support rod 6 from tipping toward the nut 14. When the tail end of the limit plate 10 contacts the tail end of the dust removal bin, the second support rod 5 is fitted with the tail end of the dust removal bin, and the tail end of the second slide bar 8 is also fitted with the tail end of the dust removal bin. When the staff pushes the support frame 2, the tail end of the dust removal bin pushes the second support rod 5 to unfold, and also pushes the second slide bar 8 to slide inside the second support rod 5 and on the sliding plate 7. At this time, the spring 9 is compressed and accumulates force, pushing the second support rod 5 toward the direction of the tail end of the dust removal bin, and then aligning the fixing block 3 with the center of the fixing ring 15, and then fixing the fixing ring 15 to the open end of the filter bag body 1, and the support frame 2 is fixed by the fixing ring 15.

[0027] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0028] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A needle-punched nonwoven fabric pleated filter bag for use in the steel industry, comprising a filter bag body (1), characterized in that: A support frame (2) is arranged inside the filter bag body (1), a fixed block (3) is fixed to the support frame (2) near the open end of the filter bag body (1), a plurality of sliding blocks (4) are fixed to the support frame (2), a plurality of first support rods (6) are arranged in the middle of the four sides of the support frame (2) and at one end near the fixed block (3), each of the first support rods (6) is rotatably connected to the sliding block (4) at one end near the support frame (2), and a limiting plate (10) is fixed to one end of each spreading sliding block (4) near the fixed block (3), and the limiting plate (10) is fixed to one end of each spreading sliding block (4) near the fixed block (3). 10) is fitted on one side of the first support rod (6), and a first slide rod (11) is slidably connected to each of the two first support rods (6), and a screw rod (13) is fixed to one end of each first slide rod (11) close to the fixed block (3). A fixing plate (12) is provided around the end of the support frame (2) close to the fixed block (3), and the first slide rod (11) is slidably connected to the inside of the fixing plate (12). A nut (14) is threadedly sleeved on the screw rod (13), and a fixing ring (15) is fixed to one end of the filter bag body (1) close to the fixed block (3).

2. The needle-punched non-woven pleated filter bag for the steel industry according to claim 1, characterized in that: A second support rod (5) is arranged on each of the four sliding blocks (4) away from the fixed block (3); the second support rod (5) is rotatably connected to the sliding block (4) at one end close to the sliding block (4); a sliding plate (7) is fixed around one end of the support frame (2) close to the second support rod (5); a second sliding rod (8) is arranged on the sliding plate (7); the second sliding rod (8) is slidably connected to the second support rod (5) and the inside of the sliding plate (7); a spring (9) is arranged between the sliding plate (7) and the second support rod (5); the spring (9) is sleeved on the second sliding rod (8).

3. The needle-punched nonwoven pleated filter bag for the steel industry according to claim 1, characterized in that: The first sliding rod (11) is provided with a baffle plate on the side of the first supporting rod (6) away from the fixed block (3), and a square limiting rod is provided above the first sliding rod (11) between two opposite first supporting rods (6).

4. The needle-punched nonwoven pleated filter bag for the steel industry according to claim 1, characterized in that: An opening matching the shape of the fixing block (3) is provided in the middle of the fixing ring (15), and the fixing ring (15) is threadedly connected to the open end of the filter bag body (1).

5. The needle-punched non-woven pleated filter bag for the steel industry according to claim 1, characterized in that: The limiting plate (10) is perpendicular to the support frame (2), and a surface of the limiting plate (10) close to the first support rod (6) is in contact with the first support rod (6).

6. The needle-punched nonwoven pleated filter bag for the steel industry according to claim 2, characterized in that: The second support rod (5) is provided with an arc surface on the top surface of the first support rod (6); the second support rod (5) and the first support rod (6) have the same length; and the length between the second support rod (5) and the first support rod (6) is greater than the length of the second support rod (5).

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