CN214437654U

CN214437654U - Super-clean dust filter of polyester fiber

Info

Publication number: CN214437654U
Application number: CN202120042443.2U
Authority: CN
Inventors: 刘金湖; 朱宝东; 蒋瑞来
Original assignee: Beipiao Bohdi Environmental Protection Machinery Manufacturing Co ltd
Current assignee: Beipiao Bohdi Environmental Protection Machinery Manufacturing Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-22
Anticipated expiration: 2031-01-08

Abstract

A polyester fiber ultra-clean dust filter is characterized in that a supporting beam is arranged on the inner wall of a desulfurizing tower and below a self-cleaning device, the supporting beam is welded with the inner wall of the desulfurizing tower, and the dust filter is fixedly connected through a pressing plate, a pressing bolt and a nut and comprises a plurality of dust filter frames and a dust filter body, the dust filter body is arranged in the dust filter frames, and the dust filter body is made of polyester fibers; the method has the advantages that the method is installed in the original desulfurizing tower, the dedusting and demisting functions are good, the dedusting efficiency of the system can reach 70-90%, the system discharge can reach less than or equal to 10mg/Nm year after transformation and efficiency improvement, and ultra-low discharge can be realized.

Description

Super-clean dust filter of polyester fiber

Technical Field

The utility model relates to a polyester fiber ultra-clean dust filter of a desulfurizing tower.

Background

Because there is not polyester fiber ultra-clean dust filter in the desulfurizing tower now, the system originally arranges within 50mg/Nm year, and dust removal, defogging are efficient.

Disclosure of Invention

The utility model aims to solve the existing problems and provide a polyester fiber ultra-clean dust filter which can lead the dust removal efficiency of a system to reach 70 to 90 percent by a desulfurizing tower.

The utility model discloses a realize like this: at the desulfurizing tower inner wall, a supporting beam is installed to self-cleaning device below, and a supporting beam and desulfurizing tower inner wall welding to it is fixed to connect through clamp plate, clamp bolt, nut with the dirt catcher, and the dirt catcher comprises a plurality of dirt frame and dirt body of straining, and the dirt body of straining is installed in the dirt catcher frame, and the dirt body of straining adopts polyester fiber.

The utility model has the advantages that,

1. solid-gas separation and liquid-solid combination are realized in the polyester fiber filter bed; dust is effectively separated from gas and dissociated in a liquid layer of the filter bed;

2. the ultrafine dust (PM 2.5) is effectively adsorbed, and the removal rate reaches more than 99 percent;

3. the polyester fiber is acid and alkali resistant, high temperature resistant and does not need to be subjected to antiseptic treatment;

4. the liquid fluidity of the polyester fiber filter bed is good, and the absorbed dust is easy to clean;

5. the polyester fiber filter bed has good air permeability and resistance less than or equal to 400 Pa.

The system is installed in the original desulfurizing tower, has good dedusting and demisting functions, achieves the dedusting efficiency increase of 70-90%, and can achieve ultra-low emission if the system is originally discharged within 50mg/Nm cultivation and the system discharge can be less than or equal to 10mg/Nm cultivation after transformation and efficiency improvement.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view at I;

FIG. 4 is an enlarged view at II;

FIG. 5 is a schematic view of the structure of 1 monolith in the dust filter;

FIG. 6 is a top view of FIG. 5;

fig. 7 is a left side view of fig. 5.

Detailed Description

The following detailed description is made with reference to the accompanying drawings: as shown in the figure, a supporting beam 4 is arranged on the inner wall of a desulfurizing tower 5 and below a self-cleaning device 1, the supporting beam 4 is welded with the inner wall of the desulfurizing tower 5, a dust filter 3 is fixedly connected through a pressure plate 8, a compression bolt 6 and a nut 7, the dust filter 3 is composed of a plurality of dust filter frames 3-1 and dust filter bodies 3-2, the dust filter bodies 3-2 are arranged in the dust filter frames 3-1, and the dust filter bodies 3-2 are made of polyester fibers.

When the flue gas flows through the filter bed at a certain speed, due to the inertia impact effect of the gas, the ultra-fine dust collides with the filter bed, and the gathered liquid drops reach the resultant force that the gravity generated by the liquid drops exceeds the rising force of the gas and the surface tension of the liquid, so that the liquid drops are separated from the surface of the corrugated fiber. The multi-fold structure of the filter bed increases the opportunity of trapping the ultrafine dust, and the dust which is not removed is trapped at the next turn under the same action, so that the dust is repeatedly acted, and the dust removal efficiency is greatly improved. The gas is substantially free of dust after filtration. The flue gas passes through the bent channel of the filter bed, and liquid drops carried in the gas flow are separated out under the action of inertia force and gravity: the flue gas is with certain speed filter bed of flowing through, and the flue gas is by quick, the continuous change direction of motion, and because of centrifugal force and inertial effect, the droplet in the flue gas strikes and is caught on the filter bed fibre and get off, and the droplet collects and forms rivers, because of the effect of gravity, falls to the thick liquid pond in, has realized gas-liquid separation for the flue gas of the dirt catcher of flowing through reaches and removes dust and defogging and requires the back discharge.

Claims

1. The utility model provides a polyester fiber ultra-clean dust filter, its characterized in that, at the desulfurizing tower inner wall, a supporting beam is installed to self-cleaning device below, and a supporting beam and the welding of desulfurizing tower inner wall to through clamp plate, clamp bolt, nut with the dust filter connection fixed, the dust filter comprises a plurality of dust filter frame and dust filter body, the dust filter body is installed in the dust filter frame, the dust filter body adopts polyester fiber.