Fixing device for biomass incineration flue gas treatment filter bag

Abstract

The utility model relates to the technical field of biomass incineration flue gas treatment, in particular to a fixing device of a biomass incineration flue gas treatment filter bag, which comprises a fixing device, the fixing device comprises a pressing piece and a fastening piece, the pressing piece is provided with an opening, the pressing piece is arranged on the upper side of a tubesheet, and the fastening piece is arranged on the upper side of the tubesheet. And the fastening piece is used for tightly pressing the pressing piece at the turnup at the top end of the filter bag. According to the utility model, the flanging at the top end of the filter bag is fixed through the combination of the pressing piece and the fastening piece, and the filter bag is tightly attached to the tubesheet, so that the problem that dust exceeds the standard due to leakage is avoided; by arranging the fixing device and the cage skeleton, the problems of filter bag perforation and the like are reduced, the service life of the filter bag is prolonged, and the anti-interference capability to airflow is strong; the pressing distance is set to be larger than the overall dimension of the keel, disassembly and assembly of the keel are not affected, and the filter bag can be replaced conveniently and rapidly by disassembling the pressing piece.

Description

[Technical field]

[0001] The utility model relates to the technical field of biomass incineration flue gas treatment, and more specifically, to a fixing device for a biomass incineration flue gas treatment filter bag. [Background technology]

[0002] The dust removal device for biomass incineration flue gas treatment - dust collector, its core equipment is the filter bag. The dust filter bag is a kind of high-efficiency dust removal filter material. The dust filter bag is made of polyester staple fiber, pps fiber, pp polypropylene, aramid fiber, nylon fiber, etc. as raw materials. The service life is generally 2-4 years. It has good air permeability, high dust collection rate, easy cleaning, and dust removal efficiency of up to 98.99%, and has good PM2.5 removal ability.

[0003] The core equipment of the existing dust collector is the filter bag, which is directly placed on the flower plate of the clean air chamber of the dust collector body with its top flange, and then the cage frame is installed inside the filter bag to open it, so that the dusty smoke can pass through the filter bag and enter the rear end after dust removal. However, since the filter bag and the flower plate holes cannot fit completely, leakage is easy to occur, causing dust to exceed the standard; and the filter bag is easily affected by the airflow, causing the coaxiality between its center and the nozzle center of the blowing pipe to deviate, thereby reducing the blowing effect and causing the top of the filter bag to break, affecting the dust removal efficiency. [Contents of the utility model]

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a fixing device for biomass incineration flue gas treatment filter bags, which can prevent the filter bags from leaking and has strong anti-interference ability.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing device for a biomass incineration flue gas treatment filter bag, comprising a fixing device, wherein the fixing device comprises a clamping piece and a fastener, wherein the clamping piece is provided with an opening, wherein the clamping piece is arranged on the upper side of a flower plate, and wherein the fastener presses the clamping piece against the top flange of the filter bag.

[0006] Preferably, the filter bag is hollow inside and is provided with a cage frame for auxiliary fixation, and the outer dimensions of the cage frame are smaller than the opening spacing.

[0007] Preferably, the flower plate is provided with fixing bolts of fasteners by welding, and the pressing piece is pressed on the top of the filter bag by the nut of the fastener, so that the flower plate is completely fitted with the filter bag.

[0008] Preferably, a middle box is provided below the flower plate, and the middle box is hollow inside to store a plurality of filter bags.

[0009] Preferably, the top of the filter bag is communicated with an opening, a nozzle is correspondingly provided above the opening, the nozzle is connected to an upper blowing pipe, and a clean air chamber is provided above the blowing pipe.

[0010] Preferably, the blowing pipe blows compressed air into the blow pipe through a nozzle.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides a fixing device for a biomass incineration flue gas treatment filter bag, which fixes the top flange of the filter bag by combining a pressing piece and a fastener, so that the filter bag is closely fitted to the flower plate, and the problem of excessive dust caused by leakage will not occur.

[0013] 2. The utility model provides a fixing device for a biomass incineration flue gas treatment filter bag, which reduces problems such as filter bag perforation by providing a fixing device and a cage frame, thereby extending the service life of the filter bag and having a strong anti-interference ability to airflow.

[0014] 3. The utility model provides a fixing device for a biomass incineration flue gas treatment filter bag, and sets the compression spacing to be larger than the outer dimensions of the cage frame, which does not affect the disassembly and assembly of the keel, and the filter bag can be replaced by removing the compression piece, which is convenient and quick.

Brief Description of the Drawings

[0015] Figure 1 This is a schematic diagram of the structure of a fixing device for a biomass incineration flue gas treatment filter bag of the utility model;

[0016] Figure 2 This is a top view of a fixing device for a biomass incineration flue gas treatment filter bag of the utility model;

[0017] In the figure: 1-fixing device, 2-pressing piece, 3-fastener, 4-cage frame, 5-filter bag, 6-middle box, 7-flower plate, 8-nozzle, 9-blowing pipe, 10-clean air chamber, 11-opening. [Specific implementation method]

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 , Figure 2In the embodiment of the utility model, a fixing device for a biomass incineration flue gas treatment filter bag comprises a fixing device 1, wherein the fixing device 1 comprises a pressing member 2 and a fastener 3, wherein the pressing member 2 is provided with an opening 11, wherein the pressing member 2 is arranged on the upper side of a flower plate 7, wherein a fixing bolt of the fastener 3 is arranged on the flower plate 7 by welding, wherein the pressing member 2 is pressed against the top of the filter bag 5 by a nut of the fastener 3, wherein the flower plate 7 is completely fitted with the filter bag 5, wherein a middle box 6 is arranged below the flower plate 7, wherein the middle box 6 is hollow inside and stores a plurality of filter bags 5, wherein the top of the filter bag 5 is communicated with the opening 11, wherein a nozzle 8 is correspondingly arranged above the opening 11, wherein the nozzle 8 is connected to an upper blowing pipe 9, wherein the blowing pipe 9 blows compressed air into the blowing pipe 9 through the nozzle 8, wherein a clean air chamber 10 is arranged above the blowing pipe 9, wherein the fastener 3 presses the pressing member 2 against the top flange of the filter bag 5, wherein the filter bag 5 is hollow inside and is provided with a cage frame 4 for auxiliary fixing, wherein the outer dimensions of the cage frame 4 are smaller than the spacing of the opening 11.

[0020] Working principle:

[0021] Before using the fixing device of the biomass incineration flue gas treatment filter bag of the utility model, the fixing device 1 of the filter bag 5 is arranged in sections and sections on the flower plate 7 of the clean air chamber 10 according to the arrangement of the filter bag 5, and the fastening bolts in the fastener 3 are arranged on the flower plate 7 by welding, and the pressing member 2 and the nut in the fastener 3 are used to press the pressing member 2 on the top flange of the filter bag 5, so that the filter bag 5 and the flower plate 7 are tightly and completely fitted, and each filter bag 5 is pressed at one place above and below to ensure uniform pressing force, and the pressing interval is larger than the outer dimensions of the cage frame 4, which does not affect the disassembly and assembly of the cage frame 4. When the filter bag 5 needs to be replaced, the nut of the fastener 3 is unscrewed and the pressing member 2 is removed to replace the filter bag 5, which is convenient and quick.

[0022] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A fixing device for a biomass incineration flue gas treatment filter bag, comprising a fixing device (1), characterized in that: The fixing device (1) comprises a pressing piece (2) and a fastener (3); the pressing piece (2) is provided with an opening (11); the pressing piece (2) is arranged on the upper side of the flower plate (7); and the fastener (3) presses the pressing piece (2) against the top flange of the filter bag (5).

2. The fixing device for a biomass incineration flue gas treatment filter bag according to claim 1, characterized in that: The filter bag (5) is hollow inside and is provided with a cage frame (4) for auxiliary fixation. The outer dimensions of the cage frame (4) are smaller than the spacing between the openings (11).

3. The fixing device for a biomass incineration flue gas treatment filter bag according to claim 1, characterized in that: The fixing bolts of the fastener (3) are welded on the flower plate (7), and the pressing member (2) is pressed on the top of the filter bag (5) through the nut of the fastener (3), so that the flower plate (7) and the filter bag (5) are completely fitted.

4. The fixing device for a biomass incineration flue gas treatment filter bag according to claim 1, characterized in that: A middle box body (6) is provided below the flower plate (7), and the middle box body (6) is hollow inside and stores a plurality of filter bags (5).

5. The fixing device for a biomass incineration flue gas treatment filter bag according to claim 4, characterized in that: The top of the filter bag (5) is in communication with an opening (11), a nozzle (8) is correspondingly provided above the opening (11), the nozzle (8) is connected to an upper blowing pipe (9), and a clean air chamber (10) is provided above the blowing pipe (9).

6. A fixing device for a biomass incineration flue gas treatment filter bag as claimed in claim 5, characterized in that: The blowing pipe (9) blows compressed air into the nozzle (8).

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