Filter bag convenient to install

Abstract

The utility model belongs to the field of filter bags, and particularly relates to a filter bag convenient to install, which comprises cage rings arranged at intervals, a plurality of cage rings are connected through vertical cage rods, filter cloth is sleeved outside the cage rings and the cage rods, the upper layer of the filter cloth is connected with a corrugated pipe, and the lower layer of the corrugated pipe is connected with a water inlet pipe. The other end of the corrugated pipe is connected to a connector seat through an air inducing ring seat; the outer side of the interface seat is sleeved with a limiting frame; when the filter bag needs to be installed, pre-fixation of an external interface is performed through cooperation of the bolt piece and the limiting frame, and a gap between the sealing ring and the interface seat is blocked through operation of the air bag mechanism, so that on one hand, sealing of a joint is performed, on the other hand, secondary reinforcement of the joint is performed, and installation is convenient. Due to the design of the thread structure, the screwing length of the bolt piece can be adjusted according to the distance between the external interface pipeline and the interface seat, the filter bag can be suitable for dust removal equipment with different external interface specifications, and the application range of the filter bag is widened.

Description

Technical Field

[0001] The utility model relates to the field of filter bags, in particular to a filter bag which is easy to install. Background Art

[0002] The filter bag is a key part of the operation of the bag filter. Usually, the cylindrical filter bag is hung vertically in the dust collector. The fabric and design of the filter bag should strive for high-efficiency filtration, easy dust removal and durability.

[0003] The effect of installing the filter bag at the interface of the dust removal equipment directly affects the stability of gas transmission. The existing filter bag installation structure is mostly a threaded structure, which can only be adapted to a single interface. The sealing of the interface is affected by the thread groove, and there is a risk of gas leakage at the connection. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model provides a filter bag which is easy to install and has the characteristics of strong interface versatility and stable sealing.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a filter bag that is easy to install, including cage rings arranged at intervals, a plurality of the cage rings are connected by vertical cage rods, the outer portion of the cage ring and the cage rod combination is sleeved with filter cloth, the upper layer of the filter cloth is connected to a bellows, and the other end of the bellows is connected to an interface seat through an air induction ring seat;

[0008] A limit frame is sleeved on the outer side of the interface seat, a through screw groove is opened between the limit frame and the interface seat, and a bolt is screwed in the screw groove;

[0009] The airbag mechanism includes an airbag clamping groove provided in the interface seat, an airbag component is placed inside the airbag clamping groove, an airbag frame penetrating the corner of the airbag clamping groove is formed on the top and bottom of the airbag component, and an air valve penetrating the outer wall of the interface seat is installed inside;

[0010] The inner wall of the airbag component is clamped with a sealing ring connected to the external interface.

[0011] Preferably, the bolt members are provided in four groups in total, and one end of the four groups of bolt members screwed into the screw grooves is attached to the external interface.

[0012] Preferably, an inwardly inclined air induced draft ring seat is installed on the top of the bellows, and the bellows and the air induced draft ring seat are combined to form a gas channel.

[0013] Preferably, the bottom of the sealing ring is attached to the outer edge of the bolt member.

[0014] Preferably, the airbag component is a deformable component, and the deformable surface is attached to the sealing ring.

[0015] Preferably, an air storage cavity is provided in the airbag component, and an air valve installed on the airbag component is connected to an external air supply device.

[0016] The above technical solution of the utility model has the following beneficial technical effects:

[0017] 1. When the filter bag needs to be installed, the external interface is pre-fixed by the cooperation of bolts and limit frames, and the gap between the sealing ring and the interface seat is blocked by the airbag mechanism. On the one hand, the connection is sealed, and on the other hand, the connection is reinforced for secondary installation, which is convenient for installation.

[0018] 2. The design of the threaded structure can adjust the screw-in length of the bolt according to the distance between the external interface pipe and the interface seat, which can be applied to dust removal equipment with different external interface specifications and improve the application range of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the interface seat structure of the utility model.

[0022] Reference numerals:

[0023] 11. Cage ring; 12. Cage rod; 13. Filter cloth; 2. Bellows; 3. Air induced draft ring seat; 4. Interface seat; 51. Limiting frame; 52. Bolt member; 61. Airbag clamping groove; 62. Airbag frame; 63. Airbag member; 64. Air valve; 7. Sealing ring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] like Figure 1-3As shown, the utility model proposes a filter bag that is easy to install, including cage rings 11 arranged at intervals, a plurality of cage rings 11 are connected by vertical cage rods 12, a filter cloth 13 is sleeved on the outer portion of the combined whole of the cage rings 11 and the cage rods 12, a bellows 2 is connected to the upper layer of the filter cloth 13, and the other end of the bellows 2 is connected to the interface seat 4 through the induced draft ring seat 3;

[0026] A limit frame 51 is sleeved on the outer side of the interface seat 4, a through screw groove is opened between the limit frame 51 and the interface seat 4, and a bolt member 52 is screwed in the screw groove;

[0027] The airbag mechanism includes an airbag clamping groove 61 provided in the interface seat 4, an airbag component 63 is placed inside the airbag clamping groove 61, an airbag frame 62 penetrating the corner of the airbag clamping groove 61 is formed on the top and bottom of the airbag component 63, and an air valve 64 penetrating the outer wall of the interface seat 4 is installed inside;

[0028] The inner wall of the airbag member 63 holds a sealing ring 7 connected to the external interface.

[0029] It should be noted that: four groups of bolt members 52 are provided in total, and one end of the four groups of bolt members 52 screwed into the screw groove is attached to the external interface to pre-fix the external interface pipe into the interface seat 4.

[0030] In this embodiment, when the filter bag needs to be installed, a sealing ring 7 is sleeved on the outer wall of the external interface pipe, and then the external interface pipe is placed in the interface seat 4, and the bolt member 52 is screwed into the interface seat 4 along the screw groove that passes through the limit frame 51 and the interface seat 4, and the external interface pipe is clamped at multiple angles. At this time, the bottom of the sealing ring 7 is attached to the outer edge of the bolt member 52 and hovers above the bolt member 52. Through the operation of the airbag mechanism, gas is input into the airbag member 63. Because the airbag member 63 is a deformable member and the deformable surface is attached to the sealing ring 7, the gap between the sealing ring 7 and the interface seat 4 can be blocked by expansion deformation. On the one hand, the connection is sealed, and on the other hand, the connection is reinforced for a secondary time to prevent loosening of the interface.

[0031] In another embodiment, the design of the threaded structure (not shown in the figure) can adjust the screw-in length of the bolt 52 according to the distance between the external interface pipe and the interface seat 4, and can be suitable for dust removal equipment with different external interface specifications, thereby improving the application range of the filter bag.

[0032] To facilitate the circulation of gas: further, an inwardly inclined draft ring seat 3 is installed on the top of the bellows 2, and the bellows 2 and the draft ring seat 3 are combined into a gas channel. The inclined and inwardly contracted draft ring seat 3 guides the gas inward to facilitate the collection of the filtered gas. At the same time, the setting of the bellows 2 can adjust the installation height of the filter bag by stretching or contracting.

[0033] like Figure 3As shown, an air storage cavity is opened in the airbag component 63, and an air valve 64 installed on the airbag component 63 is connected to an external air supply device; by opening the air valve 64, external gas is input into the air storage cavity of the airbag component 63 to inflate the airbag component 63, thereby assisting in sealing and reinforcing the connection.

[0034] Among them, the top and bottom of the airbag component 63 are formed with airbag frames 62 that penetrate into the corners of the airbag clamping groove 61. The setting of the airbag frame 62 limits the position of the airbag component 63 attached to the end surface of the interface seat 4 to prevent the airbag component 63 from detaching from the interface seat 4.

[0035] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A filter bag that is easy to install, characterized in that: It comprises cage rings (11) arranged at intervals, a plurality of the cage rings (11) are connected by vertical cage rods (12), a filter cloth (13) is sleeved on the outside of the combined whole of the cage rings (11) and the cage rods (12), a corrugated pipe (2) is connected to the upper layer of the filter cloth (13), and the other end of the corrugated pipe (2) is connected to an interface seat (4) via an air induction ring seat (3); A limiting frame (51) is sleeved on the outer side of the interface seat (4), a through screw groove is provided between the limiting frame (51) and the interface seat (4), and a bolt member (52) is screwed into the screw groove; The airbag mechanism comprises an airbag clamping groove (61) provided in the interface seat (4), an airbag component (63) being placed inside the airbag clamping groove (61), an airbag frame (62) penetrating the corner of the airbag clamping groove (61) being formed on the top and bottom of the airbag component (63), and an air valve (64) penetrating the outer wall of the interface seat (4) being installed inside; The inner wall of the airbag component (63) is clamped with a sealing ring (7) connected to the external interface.

2. A filter bag that is easy to install according to claim 1, characterized in that: A total of four groups of bolt members (52) are provided, and one end of the four groups of bolt members (52) screwed into the screw grooves is attached to the external interface.

3. A filter bag that is easy to install according to claim 1, characterized in that: An inwardly inclined air induction ring seat (3) is installed on the top of the bellows (2); the bellows (2) and the air induction ring seat (3) are combined to form a gas passage.

4. The filter bag that is easy to install according to claim 1, characterized in that: The bottom of the sealing ring (7) is attached to the outer edge of the bolt member (52).

5. The filter bag that is easy to install according to claim 1, characterized in that: The airbag component (63) is a deformable component, and the deformable surface is attached to the sealing ring (7).

6. The filter bag that is easy to install according to claim 1, characterized in that: An air storage cavity is provided in the airbag component (63), and an air valve (64) installed on the airbag component (63) is connected to an external air supply device.

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