CN215917805U

CN215917805U - Electric dust remover

Info

Publication number: CN215917805U
Application number: CN202122519384.6U
Authority: CN
Inventors: 黄新杰; 黄明杰; 寇向上
Original assignee: Fujian Longking Co Ltd.
Current assignee: Fujian Longking Co Ltd.
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-03-01
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses an electric dust collector which comprises at least one group of dust removing mechanisms (1), wherein each dust removing mechanism (1) comprises a driving shaft (11), dust collecting polar plates (12) and discharge electrodes (13) which are axially and alternately distributed along the driving shaft (11), the dust collecting polar plates (12) are fixedly connected with the driving shaft (11) and can rotate under the driving of the driving shaft (11), and the discharge electrodes (13) are movably sleeved on the driving shaft (11) and are fixed with a dust collector shell (2); the dust collector is characterized by further comprising dust removing scrapers (3) which correspond to the dust collecting pole plates (12) one to one, wherein the dust removing scrapers (3) are fixed on the dust collector shell (2) and are attached to two side walls of the dust collecting pole plates (12) along the radial direction. The electric dust remover can effectively improve the dust removing effect and simultaneously ensure the running reliability of equipment.

Description

Electric dust remover

Technical Field

The utility model relates to the technical field of dust removal, in particular to an electric dust remover.

Background

At present, an electric dust collector in China mainly has two forms, one is a fixed type, a dust collecting polar plate and a discharge electrode are both fixed, and dust is removed by a rapping force generated by rapping a corresponding hammering mechanism through a rapping hammer; the other is a movable electrode technology, the dust collecting polar plate of the movable electrode electric dust remover adopts an annular design fixed on a chain, when the movable electrode electric dust remover works, the dust collecting polar plate row drives the chain to slowly and circularly move up and down through a driving shaft at the upper part, charged dust is continuously collected during the period, when the dust on the anode plate is collected to a certain thickness, the dust enters a non-dust collecting area, and at the moment, dust removing brushes arranged at the lower part of an electric field perform dust removing on the dust collecting polar plate from the front side and the back side.

However, in the first fixed electric dust collector, the mechanical hammer is adopted to vibrate to generate an excitation force for removing dust, the dust removing force is weak, the dust on the dust collecting polar plate cannot be completely removed, the problems of corona sealing and back corona are easily caused, the dust removing efficiency of the electric dust collector is seriously reduced, and the electric dust collector cannot normally operate.

In the second movable electrode technology, a chain structure is adopted, and although an anti-swing structure is designed, a dust collecting polar plate is easy to shake and release during operation, so that the distance between a dust collecting electrode and a discharge electrode cannot be ensured, and an electric dust collector cannot normally operate; in addition, the chain runs in the smoke with high dust, so that the chain is easy to wear and break, and the equipment cannot run.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric dust remover, which effectively improves the dust removing effect and ensures the running reliability of equipment.

In order to solve the technical problems, the utility model provides an electric dust collector which comprises at least one group of dust removing mechanisms, wherein each dust removing mechanism comprises a driving shaft, dust collecting polar plates and discharge electrodes, the dust collecting polar plates and the discharge electrodes are alternately distributed along the axial direction of the driving shaft, the dust collecting polar plates are fixedly connected with the driving shaft and can rotate under the driving of the driving shaft, and the discharge electrodes are movably sleeved on the driving shaft and are fixed with a dust collector shell;

the dust collector is characterized by further comprising dust removing scrapers which correspond to the dust collecting pole plates one to one, wherein the dust removing scrapers are fixed on the dust collector shell and are attached to two side walls of the dust collecting pole plates along the radial direction.

According to the utility model, the structure of the electric dust collector is improved, and the dust collecting polar plate is changed to rotate around the axial direction of the driving shaft, so that the problems that a moving electrode chain is easy to wear and break and the dust collecting polar plate is easy to shake are solved; simultaneously, carry out the deashing through the dust removal scraper to the polar plate that gathers dust, solved fixed electrostatic precipitator and can't clear away the ash on the polar plate that gathers dust completely, caused the problem of corona seal and back corona easily, both guaranteed the effect of deashing, can effectively improve electrostatic precipitator's operational reliability again, simple structure, the practicality is strong.

Optionally, the discharge electrode includes a cathode wire, and a disk-shaped cathode frame, the cathode wire is radially fixed to the cathode frame, and the cathode frame is hoisted and fixed to the dust remover housing.

Optionally, the device further comprises a blowing mechanism, wherein the blowing mechanism can blow out compressed gas and rotate along the circumferential direction of the discharge electrode so as to perform ash removal on the discharge electrode.

Optionally, the blowing mechanism includes a blowing main pipe disposed inside the driving shaft and extending in the axial direction, and a blowing branch pipe disposed inside the dust collecting electrode plate and extending in the radial direction, the blowing branch pipe is communicated with the blowing main pipe, and the blowing branch pipe has nozzles distributed in the radial direction for blowing out compressed gas.

Optionally, the dust remover shell comprises a shell body, and a flue gas inlet and a flue gas outlet which are respectively arranged at two ends of the shell body, wherein the dust removing mechanism is arranged inside the shell body, and the width of the flue gas inlet and the width of the flue gas outlet are gradually reduced along the direction far away from the shell body.

Optionally, the lower end of the shell body is further provided with an ash bucket.

Optionally, the dust removal scraper comprises two independent scraper monomers, and the two scraper monomers are respectively arranged on two sides of the dust collection polar plate.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of an electric precipitator according to the present invention;

FIG. 2 is a schematic view of one of the dust removal mechanisms of the electrical precipitator of FIG. 1;

FIG. 3 is an axial schematic view of the dust extraction mechanism of FIG. 2;

wherein the reference numerals of fig. 1-3 are explained as follows:

1-a dust removal mechanism; 11-a drive shaft; 12-dust collecting polar plate; 13-discharge electrodes;

2-a dust collector shell; 21-a shell body; 22-a flue gas inlet; 23-a flue gas outlet; 24-ash bucket;

3-dust removal scraper;

41-blowing main pipe; 42-blowing leg.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

The terms "first," "second," and the like, herein are used for convenience in describing two or more structures or components that are identical or similar in structure and/or function and do not denote any particular limitation in order and/or importance.

The direction of the arrows in fig. 1 and 3 is the direction of flow of the flue gas.

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of an embodiment of an electric dust collector provided in the present invention; FIG. 2 is a schematic view of one of the dust removal mechanisms of the electrical precipitator of FIG. 1; fig. 3 is an axial schematic view of the dust removing mechanism of fig. 2.

The utility model provides an electric dust collector, which comprises a dust collector shell 2 and a dust collection mechanism 1 arranged in the dust collector shell 2, wherein the dust collector shell 2 specifically comprises a shell body 21, a smoke inlet 22 and a smoke outlet 23 which are respectively arranged at two ends of the shell body 21, the smoke inlet 22 is used for introducing dust-containing smoke, the smoke outlet 23 is used for discharging clean smoke after dust collection, the dust collection mechanism 1 is arranged in the shell body 21, the lower end of the shell body 21 is also provided with an ash hopper 24 used for discharging dust, the smoke inlet 22 and the smoke outlet 23 are approximately conical, and the widths of the smoke inlet 22 and the smoke outlet 23 are gradually reduced along the direction far away from the shell body 21; the dust removing mechanism 1 specifically comprises a driving shaft 11, and dust collecting pole plates 12 and discharge electrodes 13 which are alternately distributed along the axial direction of the driving shaft 11, wherein the dust collecting pole plates 12 are in a disc-shaped structure, are fixedly connected with the driving shaft 11 and can rotate under the driving of the driving shaft 11, the discharge electrodes 13 comprise cathode wires and a disc-shaped cathode frame, the cathode wires are radially fixed on the cathode frame, the cathode frame is movably sleeved on the driving shaft 11 and is fixed on the dust remover shell 2 in an insulating and hoisting manner, and of course, in order to ensure the normal operation of the dust remover, the adjacent dust collecting pole plates 12 and the discharge electrodes 13 should have a preset distance.

After the dust-containing flue gas enters the dust remover shell 2 through the flue gas inlet 22, dust particles in the flue gas pass through a channel between the dust collecting pole plate 12 and the discharge electrode 13, most of the dust particles are collected by the dust collecting pole plate 12 and attached to the dust collecting pole plate 12, a small part of the dust particles are collected by the discharge electrode 13 and attached to the discharge electrode 13, and the clean flue gas after dust removal is discharged through the flue gas outlet 23, so that dust removal of the flue gas is realized.

In order to remove dust particles deposited on the dust collecting polar plate 12, the electric dust collector also comprises dust removing scrapers 3 which correspond to the dust collecting polar plate 12 one by one, wherein the dust removing scrapers 3 are fixed on the shell 2 of the dust collector and are attached to two side walls of the dust collecting polar plate 12 along the radial direction. Because the dust collecting pole plate 12 is always driven by the driving shaft 11 to rotate, and the dust removing scraper 3 is fixed on the dust collector shell 2 and is attached to two side walls of the dust collecting pole plate 12 along the radial direction, dust particles deposited on the dust collecting pole plate 12 can be scraped off by the dust removing scraper 3 along with the rotation of the dust collecting pole plate 12, and are deposited in the ash hopper 24 at the lower end and discharged from the ash hopper 24, so that the dust removal of the dust collecting pole plate 12 is realized.

In conclusion, the structure of the electric dust collector is improved, the dust collecting polar plate 12 is changed to rotate around the axial direction of the driving shaft 11, and the problems that a moving electrode chain is easy to wear and break and the dust collecting polar plate is easy to shake are solved; meanwhile, the dust removing scraper 3 is used for removing dust from the dust collecting polar plate 12, the problems that a fixed electric dust remover cannot completely remove dust on the dust collecting polar plate, corona sealing and back corona are easily caused are solved, the dust removing effect is guaranteed, the working reliability of the electric dust remover can be effectively improved, the structure is simple, and the practicability is high.

It can be seen from fig. 1 that the number of the dust removing mechanisms 1 arranged in the dust remover housing 2 is plural, and the sizes of the dust removing mechanisms 1 are different, in practical application, the number and specific sizes of the dust removing mechanisms 1 are not limited, and the adaptive adjustment can be performed according to the actual dust removing pressure and the dust removing requirement.

As shown in fig. 2 and fig. 3, in this embodiment, the dust removal blade 3 includes two independent blade units, the two blade units are respectively disposed on two sides of the dust collection pole plate 12, and in order to ensure the dust removal effect, the length of the dust removal blade 3 is not less than the radius of the dust collection pole plate 12.

Certainly, in practical application, the dust removal scraper 3 may also be set to be an integral structure, for example, the dust removal scraper is U-shaped, two sides of the open end are attached to two side walls of the dust collection electrode plate 12, and a certain gap is formed between the closed end and the edge of the dust collection electrode plate 12, so that influence on rotation of the dust collection electrode plate 12 is avoided.

Further, the dust removing housing 2 mainly functions to accommodate the dust removing mechanism 1, and the specific structure is not limited to the above embodiment.

With continued reference to fig. 3, the dust removal of the discharge electrodes 13 is achieved by a blowing mechanism, specifically, the blowing mechanism includes a main blowing pipe 41 disposed inside the driving shaft 11 and extending along the axial direction, and a branch blowing pipe 42 disposed inside the dust collecting electrode plate 12 and extending along the radial direction, that is, the branch blowing pipe 42 rotates synchronously with the rotation of the dust collecting electrode plate 12, the branch blowing pipe 42 is communicated with the main blowing pipe 41 and is provided with nozzles distributed along the radial direction, the nozzles extend along the direction facing the adjacent discharge electrodes 13 for blowing out compressed gas, therefore, the branch blowing pipe 42 blows dust particles deposited on the discharge electrodes 13 uniformly along the circumferential direction along with the rotation of the dust collecting electrode plate 12, and the dust removal effect is effectively improved.

In this embodiment, the blowing mechanism is integrated in the driving shaft 11 and the dust collecting electrode plate 12, and rotates along with the rotation of the dust collecting electrode plate 12. In practical application, it is also feasible to separately arrange the driving mechanism to realize the rotation of the blowing mechanism. Of course, the implementation structure of the embodiment is simpler, and is a more preferable technical solution.

In addition, the discharge electrode 13 can perform ash removal by the rapping force generated by the rapping mechanism, and the specific implementation manner is the prior mature technology, which is not described herein again.

The present invention provides an electric dust collector, which is described in detail above, and the principle and the embodiment of the present invention are explained in the present text by using specific examples, and the above description of the examples is only used to help understanding the method and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The electric dust collector is characterized by comprising at least one group of dust removing mechanism (1), wherein the dust removing mechanism (1) comprises a driving shaft (11), dust collecting polar plates (12) and discharge electrodes (13) which are axially and alternately distributed on the driving shaft (11), the dust collecting polar plates (12) are fixedly connected with the driving shaft (11) and can be driven by the driving shaft (11) to rotate, and the discharge electrodes (13) are movably sleeved on the driving shaft (11) and are fixedly connected with a dust collector shell (2);

the dust collector is characterized by further comprising dust removing scrapers (3) which correspond to the dust collecting pole plates (12) one to one, wherein the dust removing scrapers (3) are fixed on the dust collector shell (2) and are attached to two side walls of the dust collecting pole plates (12) along the radial direction.

2. An electric precipitator according to claim 1, characterized in that the discharge electrodes (13) comprise cathode wires, which are radially fixed to a cathode frame in the form of a disc, which is suspended insulated from the precipitator casing (2).

3. The electric dust collector as claimed in claim 1, further comprising a blowing mechanism capable of blowing compressed gas and rotating along the circumferential direction of the discharge electrodes (13) to perform ash removal on the discharge electrodes (13).

4. The electric dust collector as claimed in claim 3, wherein the blowing mechanism comprises a main blowing pipe (41) which is arranged inside the driving shaft (11) and extends along an axial direction, and a branch blowing pipe (42) which is arranged inside the dust collecting pole plate (12) and extends along a radial direction, the branch blowing pipe (42) is communicated with the main blowing pipe (41), and the branch blowing pipe (42) is provided with nozzles which are distributed along the radial direction and used for blowing out compressed gas.

5. The electric dust collector as claimed in any one of claims 1-4, wherein the dust collector shell (2) comprises a shell body (21), and a flue gas inlet (22) and a flue gas outlet (23) which are respectively arranged at two ends of the shell body (21), the dust collecting mechanism (1) is arranged inside the shell body (21), and the width of the flue gas inlet (22) and the width of the flue gas outlet (23) are gradually reduced along the direction away from the shell body (21).

6. An electric precipitator according to claim 5, characterised in that the lower end of the shell body (21) is also provided with an ash hopper (24).

7. The electric dust collector as claimed in any one of claims 1 to 4, wherein the dust removing scraper (3) comprises two independent scraper monomers, and the two scraper monomers are respectively arranged at two sides of the dust collecting pole plate (12).