CN209997799U - Ash cleaning device for electric dust collector - Google Patents

Abstract

The utility model discloses an kind of ash removal device for electrostatic precipitator belongs to industrial smoke and dust purification technical field, this ash removal device includes collecting tube, dust removal brush, exhaust fan and is used for the drive assembly that the collecting tube removed is equipped with the dust absorption hole on the outer wall of collecting tube, and the dust removal brush is located the outer wall of collecting tube, and the suction opening and the collecting tube of exhaust fan communicate the utility model discloses can thoroughly the deashing, avoid the dust to return the problem that produces the secondary raise dust in the flue gas again.

Description

Dust cleaning device for electrostatic precipitator

technical field

The utility model relates to the technical field of industrial fume and dust purification, in particular to a dust cleaning device for an electric precipitator.

Background technique

An electrostatic precipitator is a device that separates dust from flue gas. Usually, the electrostatic precipitator uses a high-voltage electric field to ionize the flue gas, so that the dust in the flue gas carries electric charges. Surface removal of anode or cathode plates.

The current cleaning device usually includes a brush, a drive assembly and a collection bag. The brush is arranged on the side of the anode plate or the cathode plate in the electrostatic precipitator, and the brush is driven to reciprocate along the side of the anode plate or the cathode plate through the drive assembly. The brush moves so that the dust shed from the anode or cathode plate falls into the collection bag located under the brush.

However, the existing dust cleaning device uses a collection bag to collect the dust that falls off by itself, which belongs to passive dust collection. During the dust collection process, some dust may not be collected by the collection bag, so there is a problem of incomplete dust removal. At the same time, the uncollected dust will return to the flue gas under the influence of the airflow of the flue gas, resulting in secondary dust, resulting in excessive dust concentration at the flue gas discharge port of the electrostatic precipitator and reducing the dust removal efficiency of the electrostatic precipitator.

Utility model content

The embodiment of the present utility model provides a dust cleaning device for an electrostatic precipitator, which can completely remove dust and avoid the problem of dust returning to the flue gas to generate secondary dust. The technical solution is as follows:

On the one hand, an embodiment of the present utility model provides a dust cleaning device for an electrostatic precipitator. The dust cleaning device includes: a dust collecting pipe, an outer wall is provided with a dust suction hole, and a dust removal brush is located in the dust collecting pipe The outer wall of the dust collector is used to drive the moving drive assembly of the dust collecting pipe, and the air outlet of the exhaust fan is communicated with the dust collecting pipe.

In an implementation manner of the embodiment of the present invention, the number of the dust collecting pipes is two, the two dust collecting pipes are distributed in parallel and spaced apart, and the dust removing brush is located between the two dust collecting pipes.

In another implementation manner of the embodiment of the present invention, the dust cleaning device further includes a mounting bracket, and one ends of the two dust collecting pipes are both connected to the mounting bracket.

In another implementation manner of the embodiment of the present invention, the dust cleaning device further includes a communication pipe, and the other ends of the two dust collecting pipes are communicated with the communication pipe.

In another implementation manner of the embodiment of the present invention, the dust suction holes are provided on both sides of the dust removal brush.

In another implementation manner of the embodiment of the present invention, the included angle between the center of the two dust suction holes and the line connecting the central axis of the dust collecting pipe is 40° to 90°.

In another implementation manner of the embodiment of the present invention, there are a plurality of the dust suction holes, and the plurality of the dust suction holes are distributed along the axial direction of the dust collecting pipe.

In another implementation manner of the embodiment of the present invention, the ash cleaning device further includes a connecting pipe, one end of the connecting pipe is communicated with the air outlet of the exhaust fan, and the other end of the connecting pipe is connected to the air outlet of the exhaust fan. The dust collecting pipes are connected, and the connecting pipes are flexible pipes.

In another implementation manner of the embodiment of the present invention, the bristles of the dust removal brush are insulating materials.

In another implementation manner of the embodiment of the present invention, the drive assembly includes: a drive motor, a drive gear, and a drive rack, the drive gear is sleeved on the output shaft of the drive motor, and the drive rack Meshing with the driving gear, the dust collecting pipe is connected with the driving rack.

The beneficial effects brought by the technical solutions provided by the embodiments of the present utility model are:

In the embodiment of the present utility model, a dust-removing brush is arranged on the outer wall of the dust-collecting tube. When in use, the dust-collecting tube is reciprocated on the side of the cathode plate or the anode plate of the electrostatic precipitator by controlling the driving component, and the cathode is moved by the dust-removing brush. The dust deposited on the plate or anode plate is peeled off from the cathode plate or anode plate, so that the dust adsorbed on the cathode plate or anode plate can be completely brushed off. The inner space of the dust pipe can be evacuated by the exhaust fan, so that a certain degree of vacuum is maintained in the dust collection pipe. Therefore, the dust peeled from the cathode plate or the anode plate can be sucked into the dust collection pipe through the dust suction hole, and finally discharged through the dust collection pipe. , because the dust near the dust collection pipe can be fully inhaled through the dust collection pipe with vacuum degree, compared with the existing passive dust collection method, the dust collection effect of the utility model is better and more thorough, so it can also effectively Avoid dust returning to the flue gas, resulting in secondary dust.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic structural diagram of a dust cleaning device for an electrostatic precipitator provided by an embodiment of the present invention;

2 is a schematic structural diagram of a dust collecting pipe provided by an embodiment of the present invention;

3 is a schematic structural diagram of another dust cleaning device for an electrostatic precipitator provided by an embodiment of the present invention;

4 is a side view of a dust cleaning device provided by an embodiment of the present invention;

5 is a schematic diagram of the distribution of dust suction holes provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of the distribution of another dust suction hole provided by an embodiment of the present invention.

The meanings of the symbols in the figure are as follows:

1- Dust collection pipe, 11- Dust hole, 2- Dust brush, 3- Mounting frame, 41- Drive motor, 42- Drive gear, 43- Drive rack, 44- Guide chain, 5- Connecting pipe, 61- Exhaust fan, 62-connecting pipe, 7-anode plate.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present utility model more clear, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a dust cleaning device for an electrostatic precipitator provided by an embodiment of the present invention. As shown in Figure 1, the dust cleaning device includes: a dust collecting pipe 1, a dust removing brush 2, a vacuum assembly and a driving assembly for driving the dust collecting pipe 1 to move. The brush 2 is located on the outer wall of the dust collecting pipe 1 , and the vacuum assembly is used to evacuate the inner space of the dust collecting pipe 1 to a vacuum.

In the embodiment of the present utility model, a dust-removing brush is arranged on the outer wall of the dust-collecting tube. When in use, the dust-collecting tube is reciprocated on the side of the cathode plate or the anode plate of the electrostatic precipitator by controlling the driving component, and the cathode is moved by the dust-removing brush. The dust deposited on the plate or anode plate is peeled off from the cathode plate or anode plate, so that the dust adsorbed on the cathode plate or anode plate can be completely brushed off. The inner space of the dust pipe can be evacuated by the exhaust fan, so that a certain degree of vacuum is maintained in the dust collection pipe. Therefore, the dust peeled from the cathode plate or the anode plate can be sucked into the dust collection pipe through the dust suction hole, and finally discharged through the dust collection pipe. , because the dust near the dust collection pipe can be fully inhaled through the dust collection pipe with vacuum degree, compared with the existing passive dust collection method, the dust collection effect of the utility model is better and more thorough, so it can also effectively Avoid dust returning to the flue gas, resulting in secondary dust.

FIG. 2 is a schematic structural diagram of a dust collecting pipe 1 provided by an embodiment of the present invention. As shown in FIG. 2 , the number of dust collecting pipes 1 is two, the two dust collecting pipes 1 are distributed in parallel and spaced apart, and the dust collecting brush 2 is located between the two dust collecting pipes 1 . In this embodiment, the two dust collecting tubes 1 may be located on both sides of the cathode plate of the electrostatic precipitator or on both sides of the anode plate 7 of the electrostatic precipitator, and the dust removal brushes 2 on the two dust collecting tubes 1 are both positive To the side walls of the cathode or anode plate 7 . In this way, the two dust collecting pipes 1 can simultaneously sweep the dust on both sides of the cathode plate or the anode plate 7, so that the dust cleaning efficiency of the dust cleaning device can be improved.

As shown in FIG. 2 , the dust cleaning device may further include an installation frame 3 , and one end of the two dust collecting pipes 1 is connected to the installation frame 3 . In this embodiment, the mounting frame 3 can be a connecting piece such as a connecting plate, a connecting rod, etc. One end of the two dust collecting pipes 1 is fixed on the mounting frame 3, so that the two dust collecting pipes 1 are integrated into a whole, so that when using the drive When the assembly drives the dust collecting tube 1 to move along the side wall of the cathode plate or the anode plate 7, it can drive the two dust collecting tubes 1 to slide and clean the dust at the same time, so as to avoid configuring a driving component for each dust collecting tube 1, which saves cost and is easy to use. .

In some embodiments of the present invention, the drive assembly may include: a drive motor 41 , a drive gear 42 and a drive rack 43 , the drive gear 42 is sleeved on the output shaft of the drive motor 41 , and the drive rack 43 meshes with the drive gear 42 , the dust collecting pipe 1 is connected with the driving rack 43 . As shown in FIG. 1 , the dust collecting pipe 1 is provided with two driving racks 43 , and the two driving racks 43 may be located at two ends of the dust collecting pipe 1 respectively, and the output shaft of the driving motor 41 is coaxially provided with a driving rack 43 . The transmission rod is sleeved with two driving gears 42 , wherein the two driving gears 42 are respectively engaged with the two driving racks 43 located on the dust collecting pipe 1 . In this embodiment, the circular motion of the driving motor 41 is converted into the linear motion of the driving rack 43 by setting the driving mode in which the driving gear 42 and the driving rack 43 are engaged. The purpose of linear motion along the cathode plate or anode plate 7. At the same time, in this embodiment, a driving rack 43 is provided at both ends of the dust collecting pipe 1, so that the dust collecting pipe 1 is subjected to a more uniform force when moving, and can stably move along the cathode plate or the cathode plate under the driving of the driving motor 41. The anode plate 7 performs reciprocating linear motion.

In other embodiments of the present invention, as shown in FIG. 3 , the drive assembly may include: a drive motor 41 and a guide chain 44 , one end of the guide chain 44 is wound on the output shaft of the drive motor 41 , and the other end of the guide chain 44 One end is wound on the dust collecting pipe 1, so that the distance between the dust collecting pipe 1 and the driving motor 41 can be adjusted through the guide chain 44 under the driving of the driving motor 41, so that the dust collecting pipe 1 can be moved along the cathode plate or the anode plate 7. The purpose of linear motion.

It should be noted that, in addition to the above-mentioned driving manners, other driving manners, such as hydraulic cylinder driving, etc., may also be adopted, which are not limited in this embodiment of the present invention.

As shown in FIG. 2 , the dust cleaning device may further include a communication pipe 5 , and the other ends of the two dust collecting pipes 1 are communicated with the communication pipe 5 . The communication pipe 5 can be a three-way pipe, the first nozzle of the three-way pipe is connected to the other end of one dust collecting pipe 1 , and the second nozzle of the three-way pipe is connected to the other end of the other dust collecting pipe 1 , and the third nozzle of the tee is used to connect with the vacuum assembly. In this embodiment, the inner spaces of the two dust collecting pipes 1 are connected through the communication pipe 5, so that when the dust collecting pipes 1 are evacuated by a vacuum assembly, a single vacuum assembly can be used to evacuate the two dust collecting pipes 1 at the same time, thereby reducing the Set quantity of vacuum components, save cost.

In this embodiment, the vacuum assembly may include an exhaust fan 61 and a connecting pipe 62 . As shown in Figures 1 and 2, one end of the connecting pipe 62 is communicated with the air outlet of the exhaust fan 61, and the communication pipe 5 has a nozzle that communicates with the other end of the connecting pipe 62, so that the dust collecting pipe 1 is removed by the exhaust fan 61. The air inside is drawn out, so that the inner space of the dust collecting pipe 1 can maintain a certain degree of vacuum.

The connecting pipe 62 can be a flexible pipe. Since the dust collecting pipe 1 needs to reciprocate on the cathode plate or the anode plate 7 in this embodiment, the dust collecting pipe 1 will also pull the connecting pipe 62 to move together, while the connecting pipe 62 After being set as a flexible pipe, the connecting pipe 62 can be easily reciprocated together with the dust collecting pipe 1 due to its bendability.

In other embodiments of the present invention, the vacuum assembly may further include a vacuum pump and a connecting pipe 62, and the inner space of the dust collecting pipe 1 is evacuated by the vacuum pump.

4 is a side view of a dust cleaning device provided by an embodiment of the present invention. As shown in FIG. 4 , both sides of the dust removal brush 2 are provided with dust suction holes 11 . Since the dust cleaning device will reciprocate along the side wall of the cathode plate or the anode plate 7 during use, the dust removal brush 2 will have dust removal from the cathode plate or the anode plate 7 on both sides of the dust removal brush 2 in the process of brushing dust. The dust detached from the top, that is, in the embodiment of the present invention, after the dust suction holes 11 are provided on both sides of the dust removal brush 2, the dust suction effect of the dust collecting pipe 1 can be improved, and the dust can be cleaned thoroughly.

Optionally, the included angle α between the center of the two dust suction holes 11 and the line connecting the central axis of the dust collecting pipe 1 is 40° to 90°. Setting the included angle α to be 40° to 90° can ensure that the dust-absorbing holes 11 located on both sides of the dust-removing brush 2 will not be too close or too far away, so that the dust-absorbing effect of the dust-absorbing holes 11 will not be deteriorated.

In some embodiments of the present invention, there may be a plurality of dust suction holes 11 , and the plurality of dust suction holes 11 are distributed along the axial direction of the dust collecting pipe 1 . As shown in FIG. 5 , the dust suction holes 11 may be circular holes, and a plurality of circular holes are distributed on the dust collection pipe 1 along the axial direction of the dust collection pipe 1 . As shown in FIG. 6 , the dust suction holes 11 may also be elongated holes, and a plurality of elongated holes are distributed on the dust collection pipe 1 along the axial direction of the dust collection pipe 1 . In this embodiment, the bristles of the dust-removing brush 2 are also arranged along the axial direction of the dust-collecting tube 1. Since the dust-removing brush 2 is in the process of removing dust, there will be dust falling off near the dust-removing brush 2, so in order to ensure the dust-removing effect The dust collecting holes 11 can also be distributed along the axial direction of the dust collecting pipe 1 , so that all the dust near the dust removal brush 2 is sucked into the dust collecting pipe 1 through the dust collecting holes 11 .

Optionally, the bristles of the dust-removing brush 2 are insulating materials. The bristles of the insulating material are non-conductive, which prevents the cleaning device from drawing current into the drive assembly or the vacuum assembly to cause damage to the equipment, and also prevents the existence of electric charges on the bristles from attracting dust on it.

When using the dust cleaning device, first, place the dust collecting tube on the side wall of the cathode plate and anode plate of the electrostatic precipitator, and align the dust brush of the dust collecting tube with the cathode plate and anode plate, and then control the vacuum assembly to The dust collecting pipe is evacuated to a vacuum, and at the same time, the control drive assembly drives the dust collecting pipe to reciprocate along the cathode plate and the anode plate.

The dust cleaning device provided by the embodiment of the present invention cleans dust by driving the dust removal brush to reciprocate, so that the dust removal effect on the cathode plate and the anode plate is good, and the vacuum in the dust collecting pipe also has a good effect on the loose dust on the cathode plate and the anode plate. Therefore, under the action of the dust brush and the vacuum suction of the dust collection tube, the dust removal is more thorough. At the same time, the dust inhaled in the dust collection pipe will be discharged from the electrostatic precipitator through the exhaust fan, thus eliminating the generation of secondary dust. Moreover, since most of the dust of the cathode plate and anode plate is collected and cleaned by the ash cleaning device, the deposition amount of dust in the ash hopper of the electrostatic precipitator is reduced, and the frequency of ash unloading of the ash hopper can be reduced. The amount of secondary dust caused by the uniform dust deposited in the ash hopper, and the amount of secondary dust caused by the poor sealing of the ash discharge valve during the ash discharge process.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

1, kind of ash removal device for electrostatic precipitator, its characterized in that, ash removal device includes:

a dust collecting pipe (1), the outer wall of which is provided with a dust collecting hole (11),

a dust removing brush (2) positioned on the outer wall of the dust collecting pipe (1),

a driving component for driving the dust collecting pipe (1) to move,

and the air suction opening of the exhaust fan (61) is communicated with the dust collecting pipe (1).

2. The ash cleaning device according to claim 1, characterized in that the number of the dust collecting pipes (1) is two, the two dust collecting pipes (1) are distributed in parallel at intervals, and the dust removing brush (2) is positioned between the two dust collecting pipes (1).

3. The ash removal device of claim 2, further comprising a mounting bracket (3), wherein the ends of the two dust collecting pipes (1) are connected with the mounting bracket (3).

4. The ash removing device according to claim 3, further comprising a communicating pipe (5), wherein the other ends of the two dust collecting pipes (1) are communicated with the communicating pipe (5).

5. The ash removal device according to claim 1, wherein the dust suction holes (11) are formed on both sides of the dust removal brush (2).

6. The ash removing device according to claim 5, characterized in that the centers of the two dust suction holes (11) respectively form an included angle of 40-90 degrees with a connecting line of the central axes of the dust collecting pipes (1).

7. The ash removal device according to , wherein the dust suction holes (11) are plural, and the plural dust suction holes (11) are distributed along the axial direction of the dust collecting pipe (1).

8. The ash removal device of of any of claims 1-6, further comprising a connecting pipe (62), wherein the end of the connecting pipe (62) is communicated with the suction opening of the exhaust fan (61), the other end of the connecting pipe (62) is communicated with the dust collecting pipe (1), and the connecting pipe (62) is a flexible pipe.

9. The ash removal device according to any of claims 1-6, wherein the bristles of the dust removal brush (2) are of an insulating material.

10. The ash cleaning device according to , wherein the driving assembly comprises a driving motor (41), a driving gear (42) and a driving rack (43), the driving gear (42) is sleeved on an output shaft of the driving motor (41), the driving rack (43) is meshed with the driving gear (42), and the dust collecting pipe (1) is connected with the driving rack (43).

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