CN218459798U - Built-in ash collecting and guiding device of high-temperature electrostatic dust collector - Google Patents
Built-in ash collecting and guiding device of high-temperature electrostatic dust collector Download PDFInfo
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- CN218459798U CN218459798U CN202221246458.1U CN202221246458U CN218459798U CN 218459798 U CN218459798 U CN 218459798U CN 202221246458 U CN202221246458 U CN 202221246458U CN 218459798 U CN218459798 U CN 218459798U
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Abstract
The utility model discloses a built-in collection ash guiding device of high temperature electrostatic precipitator belongs to high temperature dust removal technical field. The device is used for solving the problem that the cylindrical horizontal electrostatic dust collector is unstable in work due to the fact that a moving gear is blocked easily by a dust scraping system due to high temperature. The device comprises ash collecting guide plates, and two groups of ash collecting guide plates are arranged at the bottom in the high-temperature electrostatic dust collector and used for collecting dust from the high-temperature electrostatic dust collector.
Description
Technical Field
The utility model belongs to the technical field of high temperature dust removal, concretely relates to built-in collection ash guiding device of high temperature electrostatic precipitator.
Background
The ash content in the horizontal electrostatic precipitator of drum type passes through the negative and positive pole and collects the flue gas, the ash content falls on the lower arc board of the horizontal electrostatic precipitator of drum type, and pile up in the lower part of the horizontal electrostatic precipitator of drum type, ash flow mobility is higher relatively under the high temperature, but the ash content still can produce the phenomenon of piling up on the swift current ash board after using for a long time, if do not have external force to clear away accumulational ash content, then the horizontal electrostatic precipitator of drum type moves behind a period, the height of ash content deposit can constantly increase, make the negative and positive pole overlap joint, lead to the horizontal electrostatic precipitator of drum type to become invalid.
The ash scraping system which swings along the lower cambered surface is arranged in the existing cylindrical horizontal electrostatic dust collector, when the ash scraping system swings along the lower cambered surface, accumulated ash can be brought to an ash falling port right below the cylindrical horizontal electrostatic dust collector, and then the ash can be discharged out of the cylindrical horizontal electrostatic dust collector along with the ash pulling device, so that the long-term stable operation of the cylindrical horizontal electrostatic dust collector is ensured.
In practical application, the ash scraping system drives ash to move to an ash falling opening when swinging inside the equipment, and the ash scraping system works in the cylindrical horizontal electrostatic dust collector, and the temperature in the cylindrical horizontal electrostatic dust collector is higher, so that a shell of the ash scraping system and an ash scraping mechanism are easy to expand under a high-temperature working condition, a moving gear is blocked, and the ash scraping system is caused to break down frequently.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a built-in collection ash guiding device of high temperature electrostatic precipitator for the solution scrapes the ash system and leads to the horizontal electrostatic precipitator unstable problem of work of drum type because of the high temperature easily leads to the motion gear card to die.
The embodiment of the utility model provides a built-in collection ash guiding device of high temperature electrostatic precipitator, include:
and the two groups of ash collecting guide plates are arranged at the bottom in the high-temperature electrostatic dust collector and are used for collecting dust from the high-temperature electrostatic dust collector.
Preferably, the ash collecting guide plate at least comprises a first end ash sliding plate and a tail end ash sliding plate, the lower part of the first end ash sliding plate and the upper part of the tail end ash sliding plate are both connected with the shell, and the upper part of the first end ash sliding plate is in contact with the lower part of the tail end ash sliding plate.
Preferably, the inclined angle of the front end ash slipping plate and the inclined angle of the rear end ash slipping plate are 20-70 degrees with the horizontal plane.
Preferably, the front end ash slipping plate and the horizontal plane form an inclined angle of 20 degrees, and the tail end ash slipping plate and the horizontal plane form an inclined angle of at least 20 degrees; or
The head end ash sliding plate and the horizontal plane form an inclined angle of 40 degrees, and the tail end ash sliding plate and the horizontal plane form an inclined angle of at least 40 degrees; or
The front end ash sliding plate and the horizontal plane form an inclination angle of 70 degrees, and the tail end ash sliding plate and the horizontal plane form an inclination angle of at least 70 degrees.
Preferably, the ash collecting guide plate further comprises at least 1 middle ash sliding plate, and two ends of the middle ash sliding plate are respectively contacted with the head end ash sliding plate and the tail end ash sliding plate.
Preferably, a first heat preservation layer is arranged between each group of the ash collecting guide plates and the shell, and a second heat preservation layer is arranged on the shell.
Preferably, the head end and the tail end of each group of the ash collecting guide plates are in sealing contact with the shell; and the two groups of ash collecting guide plates and the shell form a cavity.
Preferably, the dust cleaning system is also included:
the dust collecting guide plate is arranged on the dust collecting guide plate and is used for removing dust on the dust collecting guide plate.
Preferably, the ash removal system comprises:
the power gas inlet is arranged outside the high-temperature electrostatic dust collector, is connected with a power gas main pipeline, and provides Wen Moyang gas under pressure into the high-temperature electrostatic dust collector;
the electromagnetic control valve is arranged on the power gas main pipeline and is positioned between a power gas inlet and the high-temperature electrostatic dust collector;
one end of the main power gas pipeline is positioned outside the high-temperature electrostatic dust collector, and the other end of the main power gas pipeline extends into the high-temperature electrostatic dust collector;
and the ash cleaning device is arranged on the ash collecting guide plate, is connected with the main power gas pipeline and is used for removing dust accumulated on the ash collecting guide plate.
Preferably, the device further comprises a plurality of power gas branch pipes;
the outlet of the main power gas pipeline is vertically connected with a plurality of power gas branch pipes, and the interval between every two adjacent power gas branch pipes is 0.2-2 m;
and an ash removal device is arranged at the outlet of each power gas branch pipe.
Preferably, when a plurality of the power pneumatic branch pipes are positioned on the middle ash slipping plate, the inclination angle of each power pneumatic branch pipe and the ash removal device is consistent with that of the middle ash slipping plate; or
When the power pneumatic branch pipes are positioned on the head end ash sliding plate, the inclination angle of each power pneumatic branch pipe and the ash cleaning device is consistent with that of the head end ash sliding plate.
The embodiment of the utility model provides a built-in collection ash guiding device of high temperature electrostatic precipitator, include: and the two groups of ash collecting guide plates are arranged at the bottom in the high-temperature electrostatic dust collector and are used for collecting dust from the high-temperature electrostatic dust collector. The ash collecting guide plate is arranged in the high-temperature electrostatic dust collector, so that the problem that a moving gear included in an ash scraping system is blocked due to high temperature is solved; the ash collecting guide plate provided by the embodiment of the utility model is arranged in the high-temperature electrostatic dust collector, it has simple structure, can freely stretch and retract at high temperature, the problem that the dust remover cannot work normally due to high-temperature expansion is avoided, and the problem that the existing dust scraping system is unstable in work due to the fact that a moving gear is blocked easily due to high temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a built-in ash collecting and guiding device of a high-temperature electrostatic precipitator according to an embodiment of the present invention;
fig. 2 is a schematic view showing a part of a region a in fig. 1 according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating the installation of the power gas branch pipe according to the embodiment of the present invention;
in the figure: the device comprises an ash collecting guide plate 1, an ash cleaning system 2, an embedded scraper conveyor 3, a shell 4, an angle steel support 12, a power gas inlet 21, a power gas main pipeline 22, an ash cleaning device 23, an electromagnetic control valve 24, a power gas branch pipeline 25, a second heat insulation layer 42 and a first heat insulation layer 41.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In practical application, the cylindrical horizontal electric dust remover is a dry electric dust remover, the conventional use temperature is 100-200 ℃, and the dusty gas is usually inflammable and explosive gas. Dusty gas passes through electrified dust behind the electric field and is adsorbed by the negative and positive poles, shakes behind the negative and positive poles dust and falls cambered surface under the drum type by gravity factor, can't directly collect, scrapes grey system through the inside machinery of equipment and collects the dust in the ash storage or defeated grey system under equipment.
In the actual use process, the mechanical ash scraping system mainly works in a gear and rack meshing transmission mode. Because the internal environment of the dust removing equipment is severe and the equipment is often large in size, the dust removing equipment is not precisely matched. The high temperature of 100-200 ℃ can cause thermal expansion, and the locking phenomenon can often occur. The ash scraping structure is proved by practice not to be suitable for high temperature or high temperature working conditions.
In order to satisfy the collection of dry-type electrostatic precipitator to the dust under high temperature or the high temperature operating mode, the embodiment of the utility model provides a do not need mechanical motion just to satisfy the device of collecting horizontal electrostatic precipitator dust under the inflammable and explosive operating mode.
FIG. 1 is a schematic structural view of a built-in ash collecting and guiding device of a high temperature electrostatic precipitator according to an embodiment of the present invention; fig. 2 is a schematic view of a portion of a region a in fig. 1 according to an embodiment of the present invention; FIG. 3 is a schematic view of an installation of a power gas branch pipe according to an embodiment of the present invention; the ash collecting and guiding device provided by the embodiment of the present invention is described in detail below with reference to fig. 1 to 3, and is applied to a high temperature electrostatic precipitator.
As shown in fig. 1, the ash collecting and guiding device mainly comprises an ash collecting and guiding plate 1. Specifically, two sets of ash collecting guide plates 1 are arranged at the bottom in the high-temperature electrostatic dust collector and used for collecting dust from the high-temperature electrostatic dust collector, an ash discharging port is formed in one end, close to the bottom in the high-temperature electrostatic dust collector, of each ash collecting guide plate 1, and a buried scraper conveyor 3 is arranged below each ash discharging port.
In practical application, the ash collecting guide plate 1 is simple in structure, is arranged at the bottom of the high-temperature electrostatic dust collector and can freely stretch at high temperature, and the problem that the dust collector stops working due to high-temperature expansion in the prior art is solved.
Illustratively, as shown in fig. 1, in the embodiment of the present invention, each ash collecting deflector 1 includes at least a head end ash chute and a tail end ash chute. Specifically, the lower part of the head end ash slipping plate and the upper part of the tail end ash slipping plate are both connected with the shell, and the upper part of the head end ash slipping plate is in contact with the lower part of the tail end ash slipping plate. It should be noted that the lower portion of the head end dust slipping plate is connected with the shell, the upper portion of the tail end dust slipping plate is connected with the shell, the connection here may be a welding connection, and may also be a fixed connection. Furthermore, the upper portion of head end swift current hawk contacts with the lower part of terminal swift current hawk, and the contact here can be terminal surface and the terminal surface of lower part on upper portion and contact, can be the top of the lower part overlap joint on the upper portion of head end swift current hawk of terminal swift current hawk, also can be the top of the lower part of terminal swift current hawk through the bracing piece built on the upper portion of head end swift current hawk the embodiment of the utility model provides an, do not do the restriction to the concrete mode of contact.
In practical application, the inclination angle between the first-end ash sliding plate and the horizontal plane can be 20-70 degrees; correspondingly, the inclination angle between the end dust chute plate and the horizontal plane can also be 20-70 degrees. Because the ash collecting guide plate 1 is arranged at the bottom in the high-temperature electrostatic dust collector, in practical application, the distance between the lower part of the head end ash slipping plate and the outlet of the high-temperature electrostatic dust collector is smaller than the distance between the upper part of the tail end ash slipping plate and the outlet of the high-temperature electrostatic dust collector, in order to realize the function of the ash collecting guide plate 1, namely collecting dust from the high-temperature electrostatic dust collector, preferably, the inclination angle between the tail end ash slipping plate and the horizontal plane is larger than or equal to the inclination angle between the head end ash slipping plate and the horizontal plane.
Specifically, when the inclination angle between the first end ash chute plate and the horizontal plane is 20 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 20 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 20 °, 25 °, 30 °, 35 °, 40 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 20 °, the inclination angle between the tail end ash chute plate and the horizontal plane is ensured to be greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be 20 ° to 70 °, and meanwhile, the inclination angles between the tail end ash chute plate and the horizontal plane may also be 20 ° to 70 °, respectively.
Illustratively, when the inclination angle between the first end ash chute plate and the horizontal plane is 25 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 25 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 25 °, 30 °, 35 °, 40 °, 45 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 25 °, the inclination angle between the tail end ash chute plate and the horizontal plane is ensured to be greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be 25 ° to 70 °, and the inclination angles between the tail end ash chute plate and the horizontal plane may be 25 ° to 70 °, respectively.
Illustratively, when the inclination angle between the first end ash chute plate and the horizontal plane is 30 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 30 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 30 °, 35 °, 40 °, 45 °, 50 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 30 °, the inclination angle between the tail end ash chute plate and the horizontal plane is ensured to be greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be between 30 ° and 70 °, and meanwhile, the inclination angles between the tail end ash chute plate and the horizontal plane may also be 30 ° and 70 °, respectively.
Illustratively, when the inclination angle between the first end ash chute plate and the horizontal plane is 35 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 35 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 35 °, 40 °, 45 °, 50 °, 55 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 35 °, it is only necessary to ensure that the inclination angle between the tail end ash chute plate and the horizontal plane is greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be 35 ° to 70 °, and meanwhile, the inclination angles between the tail end ash chute plate and the horizontal plane may also be 35 ° to 70 °, respectively.
Illustratively, when the inclination angle between the first end ash chute plate and the horizontal plane is 40 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 40 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 40 °, 45 °, 55 °, 60 °, 65 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 40 °, it is only necessary to ensure that the inclination angle between the tail end ash chute plate and the horizontal plane is greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be 40 ° to 70 °, and the inclination angles between the tail end ash chute plate and the horizontal plane may also be 40 ° to 70 °, respectively.
For example, when the inclination angle between the first end ash chute plate and the horizontal plane is 45 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 45 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 45 °, 50 °, 55 °, 60 °, 65 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 45 °, it is only necessary to ensure that the inclination angle between the tail end ash chute plate and the horizontal plane is greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be 45 ° to 70 °, and meanwhile, the inclination angle between the tail end ash chute plate and the horizontal plane may also be 45 ° to 70 °, respectively.
Illustratively, when the inclination angle between the first end ash chute plate and the horizontal plane is 50 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 50 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 50 °, 55 °, 60 °, 65 °,70 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 50 °, the inclination angle between the tail end ash chute plate and the horizontal plane is ensured to be greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be 50 ° to 70 °, respectively.
Illustratively, when the inclination angle between the first end ash chute plate and the horizontal plane is 55 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 55 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 55 °, 60 °, 65 °,70 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 55 °, it is only necessary to ensure that the inclination angle between the tail end ash chute plate and the horizontal plane is greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be between 55 ° and 70 °, and meanwhile, the inclination angle between the tail end ash chute plate and the horizontal plane may also be 55 ° and 70 °, respectively.
Illustratively, when the inclination angle between the first end ash chute plate and the horizontal plane is 60 °, the inclination angle between the tail end ash chute plate and the horizontal plane is at least 60 °, for example, the inclination angle between the tail end ash chute plate and the horizontal plane may be 60 °, 62 °, 65 °, 68 °,70 °, or 40 °, in this embodiment, when the inclination angle between the first end ash chute plate and the horizontal plane is 40 °, it is only necessary to ensure that the inclination angle between the tail end ash chute plate and the horizontal plane is greater than or equal to the inclination angle between the first end ash chute plate and the horizontal plane, and the inclination angle between the tail end ash chute plate and the horizontal plane may be 60 ° to 70 °, and meanwhile, the inclination angles between the tail end ash chute plate and the horizontal plane may also be 60 ° to 70 °, respectively.
In the above embodiment, when the ash collecting deflector 1 is composed of the head end ash slipping plate and the tail end ash slipping plate, the upper part of the head end ash slipping plate is contacted with the lower part of the tail end ash slipping plate, the contacted head end ash slipping plate and the tail end ash slipping plate are not welded, the ash collecting deflector 1 composed of the head end ash slipping plate and the tail end ash slipping plate can freely stretch and retract at high temperature, and the problem of high-temperature expansion is solved; moreover, because the high-temperature coal gas working condition is easy to explode, the ash collecting guide plates 1 are lapped to release local impact force in the explosion, so that destructive impact on an ash sliding surface is avoided.
Further, the ash collecting guide plate 1 further comprises at least 1 middle ash sliding plate, and two ends of the middle ash sliding plate are respectively contacted with the head end ash sliding plate and the tail end ash sliding plate.
Specifically, one way is: as shown in fig. 1, the lower portion of the first end dust slipping plate is connected to the housing, the upper portion of the first end dust slipping plate is in contact with the lower portion of the middle dust slipping plate, the upper portion of the middle dust slipping plate is in contact with the lower portion of the tail end dust slipping plate, and the upper portion of the tail end dust slipping plate is connected to the housing.
In another mode, the dust collector further comprises an angle steel support 12, as shown in fig. 2, the lower part of the head end dust slide is connected with the shell, and the upper part of the head end dust slide is arranged on the side angle steel of the angle steel support 12, namely, the head end dust slide is arranged on the side wall in the high-temperature electrostatic dust collector through the angle steel support 12 and is in contact with the shell 4; the upper part of the tail end ash sliding plate is connected with the shell, and the lower part of the tail end ash sliding plate is arranged on an angle steel support 12, namely the tail end ash sliding plate is arranged on the side wall in the high-temperature electrostatic dust collector through the angle steel support 12 and is in contact with the shell 4; the upper part of the middle ash slipping plate is arranged on the side angle steel of the angle steel support 12 and is welded with the side angle steel, and the lower part of the middle ash slipping plate is arranged on the angle steel support 12.
In the above embodiment, when the ash collecting deflector 1 is composed of the first end ash chute, the last end ash chute and at least one middle ash chute, the upper part of the middle ash chute is arranged on the side angle steel of the angle steel support 12, and the lower part of the last end ash chute is arranged on the angle steel support 12, so that a gap is left between the upper part of the middle ash chute and the lower part of the last end ash chute; the upper part of the first-end ash-sliding plate is arranged on the side angle steel of the belt angle steel support 12, the lower part of the middle ash-sliding plate is arranged on the belt angle steel support 12, therefore, a gap is left between the upper part of the first-end ash-sliding plate and the lower part of the middle ash-sliding plate, based on the structure, the ash collecting guide plate 1 consisting of the head end ash sliding plate, the tail end ash sliding plate and at least one middle ash sliding plate can freely stretch at high temperature, so that the problem of high-temperature expansion is solved; moreover, because the high-temperature coal gas working condition is easy to explode, the ash collecting guide plates 1 are lapped to release local impact force in the explosion, so that destructive impact on an ash sliding surface is avoided.
Illustratively, the ash collecting guide plate 1 is arranged at the bottom in the shell 4, and in order to avoid heat loss due to the working condition requirement in the high-temperature electrostatic precipitator, preferably, the shell 4 is provided with a first heat preservation layer 41; further, in order to avoid that dust in the high-temperature electrostatic dust collector falls into a cavity between the shell 4 and the gap of the dust sliding plate and long-time dust accumulation is difficult to remove, preferably, a second heat insulation layer 42 is further arranged between the shell 4 and the dust collection guide plate 1, and the second heat insulation layer 42 is made of a light heat insulation material.
Because the ash collecting guide plate 1 is arranged inside the shell 4, in practical application, the ash collecting guide plate 1 consisting of the head end ash slipping plate and the tail end ash slipping plate has different inclination angles with the horizontal plane respectively, so that the ash collecting guide plate 1 consisting of the head end ash slipping plate and the tail end ash slipping plate and the cavity formed by the shell 4 have different sizes. For example, if the formed cavity is large, the smaller the space available in the high-temperature electrostatic precipitator; accordingly, if the cavity formed is small, the more space is available within the high temperature electrostatic precipitator. In order to make the dust on the ash collecting guide plate 1 smoothly fall ash, under the general condition, the setting angle of the ash collecting guide plate 1 is increased as much as possible, but the built-in ash collecting guide plate 1 occupies the space in the high-temperature electrostatic dust collector as little as possible, and the angle between the ash collecting guide plate 1 and the horizontal plane is as small as possible on the basis of meeting the use requirement and ensuring smooth ash falling.
The embodiment of the utility model provides a built-in collection grey guiding device of high temperature electrostatic precipitator still includes deashing system 2.
In practical application, the ash collecting guide plate 1 is arranged in the high-temperature electrostatic dust collector and is used for collecting dust. However, the dust falling ability along the ash sliding plate is reduced due to factors such as temperature change, dust property change or gas state change in the high-temperature electrostatic dust collector, for example, the temperature in the equipment is 450-600 ℃ under the coal pyrolysis working condition, tar in pyrolysis gas is gaseous tar, the dust viscosity is low, the tar is condensed into liquid after the temperature is reduced, and is mixed with dust to form an asphalt-like substance, the viscosity is increased, the ash sliding plate is easy to deposit ash and coke, and the dust collection is difficult to meet by only gravity. Preferably, set up an ash removal system 2 on every collection ash guide plate of group 1 at least, this ash removal system 2 is high temperature resistant, the gas of effect can directly let in high temperature electrostatic precipitator in, can be with higher speed the recovery of the dust of piling up on collection ash guide plate 1, avoid piling up the dust on collection ash guide plate 1, when tar in the pyrolysis gas becomes liquid because of the temperature variation, mix the deposition coking on collection ash guide plate 1 with the dust, rely on gravity alone to be difficult to satisfy the problem that the dust was collected.
Illustratively, the ash removal system includes a motive gas inlet 21, a solenoid control valve 24, a motive gas main conduit 22 and an ash removal device 23. Specifically, the power gas inlet 21 is arranged outside the high-temperature electrostatic dust collector, is connected with the power gas main pipeline 22, and provides Wen Moyang gas for the high-temperature electrostatic dust collector; the electromagnetic control valve 24 is arranged on the power gas main pipeline 22 and is positioned between the power gas inlet 21 and the high-temperature electrostatic dust collector; one end of the main power gas pipeline 22 is positioned outside the high-temperature electrostatic dust collector, and the other end extends into the high-temperature electrostatic dust collector; the ash cleaning device 23 is located on the ash collecting guide plate 1, connected with the main power gas pipeline 22 and used for removing dust accumulated on the ash collecting guide plate.
Specifically, the ash removal device 23 may be a sonic ash blower, or may be a gas nozzle. When the ash removing device 23 is a sound wave ash blower, the ash removing device can convert the Wen Moyang pressed gas into sound waves to vibrate the dust accumulated on the ash collecting guide plate, so that the dust accumulated on the ash collecting guide plate is removed; when the ash removing device 23 is a gas nozzle, wen Moyang gas is blown to the dust accumulated on the dust collecting guide plate, thereby removing the dust accumulated on the dust collecting guide plate.
In practical application, the pressurized Wen Moyang gas may be heated steam or heated nitrogen. Because the inside of the high-temperature electrostatic dust collector is inflammable and explosive gas, the gas entering through the power gas inlet cannot contain oxygen. When the ash removing device is a sound wave ash blower, wen Moyang gas is pressed into sound waves to vibrate dust stacked on the ash collecting guide plate, meanwhile, wen Moyang gas is pressed into the part and is not converted into the sound waves, and the ash removing device blows the dust stacked on the ash collecting guide plate.
It should be noted that, because the deashing system passes through power gas trunk line 22 and carries other to high temperature electrostatic precipitator in, power gas trunk line 22 lets in from the top down, because the area of every collection ash guide plate of group 1 is bigger, but deashing device 23 application scope is limited, if a deashing system only includes a deashing device 23, then when it blows to the dust that forms on the collection ash guide plate 1, can have the hourglass and blow the region. In order to solve the above problem, it is preferable to further include a power pneumatic branch pipe 25.
In the embodiment of the present invention, a main power gas pipeline 22 is connected to a plurality of power gas branch pipes 25 at vertical intervals, and each power gas branch pipe 25 is provided with 1 ash removing device 23. Through the arrangement, the problem that the blowing leakage area exists on the ash collecting guide plate 1 can be solved.
It should be noted that, the power gas branch pipes 25 and the power gas main pipe 22 are both located on the ash collecting guide plate 1, and when the plurality of power gas branch pipes 25 are located on the middle ash slipping plate, the inclination angles of each power gas branch pipe 25 and the ash removal device 2 are the same as the inclination angle of the middle ash slipping plate; when the power pneumatic branch pipes 25 are positioned on the first-end ash slipping plate, the inclination angle of each power pneumatic branch pipe 25 and the ash removal device is consistent with that of the first-end ash slipping plate.
Further, the power gas branch pipe 25 is positioned on the ash collecting guide plate 1, and when the ash removing device 23 connected to the power gas branch pipe 25 is a sound wave ash blower, the straight line distance between the sound wave ash blower and the ash discharging port of the ash collecting guide plate 1 is 5-7 m.
Furthermore, the action range of the acoustic wave soot blower is 6-9m in the right front, and the peripheral diameter is 2-3m; whereas the range of action of the gas nozzles is relatively small compared to that of the sonic sootblowers. Therefore, if the ash removing devices 23 arranged on the power gas branch pipes 25 are acoustic wave ash blowers, as shown in fig. 3, one power gas branch pipe 25 is arranged on each power gas main pipe 22 at an interval of 2 meters, and a plurality of power gas branch pipes can be arranged on one power gas main pipe 22, and each acoustic wave ash blower is parallel to the middle ash sliding plate or the head end ash sliding plate arranged below the acoustic wave ash blower; if the ash removing device 23 provided in the power gas branch pipe 25 is a gas nozzle, the gas nozzle is located above the head end ash chute plate. As shown in fig. 3, each main power pneumatic pipeline 22 is provided with one power pneumatic branch pipe 25 at an interval of 0.2-0.4 m, and one main power pneumatic pipeline 22 may be provided with a plurality of nozzles, each gas nozzle is parallel to the middle ash-sliding plate or the head end ash-sliding plate arranged below the gas nozzle.
In the embodiment of the present invention, the number of the acoustic wave soot blowers arranged on the power air branch pipe 25 is related to the length of the power air main pipe 22, and is also related to the air pressure and the air volume of the Wen Youya oxygen-free air, and the length of the power air branch pipe 25 is related to the area of the ash collecting guide plate 1; the number of the gas nozzles arranged on the power gas branch pipe 25 is related to the length of the power gas main pipeline 22, the gas pressure and the gas quantity of the Wen Youya oxygen-free gas, and the length of the power gas branch pipe 25 is related to the distance between the power gas main pipeline 22 and the upper part of the head end ash sliding plate.
In practical application, compressed gas enters into main power gas pipeline 22 through power gas inlet 21, main power gas pipeline 22 passes through high temperature electrostatic precipitator's casing 4, second heat preservation 42 or main power gas pipeline 22 pass high temperature electrostatic precipitator's casing 4, second heat preservation 42, first heat preservation 41 and the inside that goes into high temperature electrostatic precipitator behind the collection grey guide plate 1, under the control of controller, the gaseous break-make of main power gas pipeline 22 is controlled to solenoid valve 24, gaseous in main power gas pipeline 22 finally converts the sound wave of high strength or the deposition on collection grey guide plate 1 into through power gas branch pipe 25 and ash removal device 23, make the deposition slide along collection grey guide plate 1 to burying scraper conveyor 3 the back and be carried away, the dust remover can high-efficient steady operation.
To sum up, the embodiment of the utility model provides a built-in collection ash guiding device of high temperature electrostatic precipitator, include: and the two groups of ash collecting guide plates are arranged at the bottom in the high-temperature electrostatic dust collector and are used for collecting dust from the high-temperature electrostatic dust collector. The ash collecting guide plate is arranged in the high-temperature electrostatic dust collector, so that the problem that a moving gear included in an ash scraping system is blocked due to high temperature is avoided; the embodiment of the utility model provides an ash collecting guide plate sets up in high temperature electrostatic precipitator, and its simple structure can freely stretch out and draw back under high temperature, has avoided leading to the problem that the dust remover can not normally work because of high temperature inflation, has solved the current ash system of scraping and has easily leaded to the horizontal electrostatic precipitator unstable problem of work of drum type because of the high temperature leads to the motion gear card to die.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. Built-in collection grey guiding device of high temperature electrostatic precipitator, its characterized in that includes:
the two groups of ash collecting guide plates are arranged at the bottom in the high-temperature electrostatic dust collector and are used for collecting dust from the high-temperature electrostatic dust collector;
the ash collecting guide plate at least comprises a head end ash sliding plate and a tail end ash sliding plate, the lower part of the head end ash sliding plate and the upper part of the tail end ash sliding plate are both connected with the shell, the upper part of the head end ash sliding plate is in contact with the lower part of the tail end ash sliding plate, and the head end ash sliding plate and the tail end ash sliding plate form an inclined angle of 20-70 degrees with the horizontal plane.
2. The built-in ash collecting and guiding device of claim 1, wherein the front end ash slipping plate has an inclination angle of 20 degrees with the horizontal plane, and the rear end ash slipping plate has an inclination angle of at least 20 degrees with the horizontal plane; or
The head end ash sliding plate and the horizontal plane form an inclined angle of 40 degrees, and the tail end ash sliding plate and the horizontal plane form an inclined angle of at least 40 degrees; or
The front end ash sliding plate and the horizontal plane form an inclination angle of 70 degrees, and the tail end ash sliding plate and the horizontal plane form an inclination angle of at least 70 degrees.
3. The ash collecting and guiding device built in the high temperature electrostatic precipitator of claim 1, wherein said ash collecting and guiding plate further comprises at least 1 intermediate ash slipping plate, both ends of which are respectively in contact with said head end ash slipping plate and tail end ash slipping plate.
4. The built-in ash collecting and guiding device of the high-temperature electrostatic precipitator according to claim 1, wherein a first heat insulating layer is arranged between each group of the ash collecting and guiding plates and the shell, and a second heat insulating layer is arranged on the shell.
5. The built-in ash collecting and guiding device of the high-temperature electrostatic precipitator according to claim 1, wherein the head end and the tail end of each group of the ash collecting and guiding plates are in sealing contact with the shell; and the two groups of ash collecting guide plates and the shell form a cavity.
6. The built-in ash collecting and guiding device of the high-temperature electrostatic precipitator as recited in claim 1, further comprising an ash cleaning system:
the dust collecting guide plate is arranged on the dust collecting guide plate and is used for removing dust on the dust collecting guide plate.
7. The built-in ash collecting and guiding device of the high-temperature electrostatic precipitator according to claim 6, wherein the ash cleaning system comprises:
the power gas inlet is arranged outside the high-temperature electrostatic dust collector, is connected with a power gas main pipeline, and provides Wen Moyang gas under pressure into the high-temperature electrostatic dust collector;
the electromagnetic control valve is arranged on the power gas main pipeline and is positioned between a power gas inlet and the high-temperature electrostatic dust collector;
one end of the main power gas pipeline is positioned outside the high-temperature electrostatic dust collector, and the other end of the main power gas pipeline extends into the high-temperature electrostatic dust collector;
and the ash cleaning device is arranged on the ash collecting guide plate, is connected with the main power gas pipeline and is used for removing dust accumulated on the ash collecting guide plate.
8. The built-in ash collecting and guiding device of the high-temperature electrostatic precipitator according to claim 7, further comprising a plurality of power pneumatic branch pipes;
the outlet of the main power gas pipeline is vertically connected with a plurality of power gas branch pipes, and the interval between every two adjacent power gas branch pipes is 0.2-2 m;
and an ash removal device is arranged at the outlet of each power gas branch pipe.
9. The built-in ash collecting and guiding device of high-temperature electrostatic precipitator according to claim 8, wherein when a plurality of said power gas branch pipes are located on the middle ash sliding plate, each power gas branch pipe and said ash removing device are inclined at the same angle with the middle ash sliding plate; or
When the power pneumatic branch pipes are positioned on the first-end ash slipping plate, the inclination angle of each power pneumatic branch pipe and the ash removal device is consistent with that of the first-end ash slipping plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221246458.1U CN218459798U (en) | 2022-05-23 | 2022-05-23 | Built-in ash collecting and guiding device of high-temperature electrostatic dust collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221246458.1U CN218459798U (en) | 2022-05-23 | 2022-05-23 | Built-in ash collecting and guiding device of high-temperature electrostatic dust collector |
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