TW202342176A - Dust collector - Google Patents

Abstract

A dust collector includes: an electrostatic precipitator for collecting dust contained in a gas; a dust filter unit including a plurality of filter bags for collecting residual dust in the gas passing through the electrostatic precipitator; and a partition wall that guides the gas passing through the electrostatic precipitator to the dust filter unit. The partition wall includes: a main partition configured to guide a part of the gas passing through the electrostatic precipitator to the dust filter unit; and an auxiliary partition configured to guide another part of the gas passing through the electrostatic precipitator to the dust filter unit.

Description

dust collector

Field of invention

The present disclosure relates to a dust collector.

Background of the invention

Generally speaking, large factories such as thermal power plants, waste incinerators and cement plants are located in locations that generate large amounts of dust. The dust generated from these factories exacerbates environmental pollution and causes respiratory diseases to people living around these factories. Dust collectors remove dust to purify the air around the factory.

This dust collector may be, for example, an electrostatic precipitator. The electrostatic precipitator charges the dust contained in the inflowing gas into negative ions through continuous charging by a high-voltage charger, and then uses a positive polarity dust collection plate to collect the charged dust.

Recently, with the strengthening of environmental regulations, it is necessary to expand the electrostatic precipitator to reduce the discharge concentration of dust. At the same time, this electrostatic precipitator has the following problem: when the dust collection area increases, the dust collection efficiency increases, but when the dust collection area exceeds a certain value, the increase in dust collection efficiency is insignificant compared with the increased dust collection area. In other words, after the dust collection area of the electrostatic precipitator reaches a certain level, the dust collection efficiency hardly increases even when the dust collection area increases. In view of these points, in order to reduce the discharge concentration to a predetermined concentration or less in response to current environmental regulations, large-scale expansion of electrostatic precipitators is required. However, in order to expand the electrostatic precipitator, space is needed around the facility, but the biggest problem is that due to the existing facility conditions in most sites, there is no space to expand the electrostatic precipitator. Therefore, in recent years, research on a hybrid dust collector in which a part of the electrostatic precipitator is converted into a dust filtering facility has been actively conducted.

The modified hybrid dust collector includes a perforated partition wall that separates the electrostatic precipitator from the dust filtration facility. Perforated partition walls guide the gas passing through the electrostatic precipitator to the filter bag.

In conventional hybrid dust collectors, the gas passing through the electrostatic precipitator flows into the dust filtering facility in only one direction. Dust collection is intensively performed in some filter bags placed relatively close to the partition wall in the dust filtering facility, and dust collection is hardly performed in some filter bags placed relatively far away from the partition wall. Therefore, when the amount of gas introduced into the filter bags is uneven, there is a problem that some filter bags are worn and damaged early, and the dust collection efficiency of the mixed dust collector is reduced. In addition, since the replacement time of filter bags is determined by components that have reached the end of their service life, there is a problem that the cost burden will increase due to frequent replacement of filter bags.

Summary of the invention

In view of the above, embodiments of the present disclosure provide a dust collector in which gas flows uniformly from the electrostatic precipitator into the dust filtering facility at the front side of the electrostatic precipitator.

Furthermore, embodiments of the present disclosure provide a dust collector with improved dust collection efficiency and increased filter bag life.

According to an aspect of the present disclosure, a dust collector is provided, which includes: an electrostatic dust collector for collecting dust contained in a gas; a dust filter unit for collecting dust that passes through the electrostatic dust collector. a plurality of filter bags for residual dust in the gas of the dust collector; and a partition wall that guides the gas passing through the electrostatic precipitator to the dust filter unit, wherein the partition wall includes: a main partition a component configured to direct a portion of the gas passing through the electrostatic precipitator to the dust filter unit; and an auxiliary partition configured to direct a portion of the gas passing through the electrostatic precipitator The other part is directed to the dust filter unit.

The partition wall may include a plurality of partition walls, and the plurality of partition walls may include a first partition wall and a second partition wall spaced apart from each other in a direction different from a front-rear direction.

The dust filter unit may be disposed on a rear side of the electrostatic precipitator, and the main partition may extend in a direction different from the front-to-back direction between the electrostatic precipitator and the dust filter unit.

The auxiliary partition may extend rearwardly from the main partition, and the auxiliary partition may include a first auxiliary partition and a second auxiliary partition spaced apart from each other in a direction different from the front-rear direction, and pass through A channel through which the other part of the gas of the electrostatic precipitator flows may be formed between the first auxiliary partition and the second auxiliary partition.

The main partition may include a first main partition and a second main partition, and an inlet of the channel is disposed between the first main partition and the second main partition.

The dust collector may further include a blocking frame closing a rear end of the channel.

A plurality of first perforations may be formed in the main partition, and a portion of the gas passing through the electrostatic precipitator flows to the dust filter unit through the plurality of first perforations, and a plurality of second perforations may be formed Another part of the gas in the auxiliary partition and passing through the electrostatic precipitator flows to the dust filter unit through the plurality of second perforations.

The plurality of first through holes may be through holes extending through the main partition in a front-rear direction and configured to be spaced apart from each other in an up-down direction.

The plurality of second perforations may extend through the auxiliary partition in a direction different from the front-to-back direction and be configured to be spaced apart from each other in the up-down direction.

Empty spaces may be formed above and below the main partition, and a portion of the gas passing through the electrostatic precipitator may flow to the dust filter unit through the empty spaces.

The dust collector may further include a frame supporting the partition wall. The auxiliary partition may extend in a front-to-back direction, and the main partition may be oriented in a direction different from the front-to-back direction between the frame and a front end of the auxiliary partition.

The dust filter unit may include a plurality of dust collection compartments, the partition wall may further include an intermediate partition that blocks a flow of the gas between adjacent compartments among the plurality of compartments, and The intermediate partition may be oriented parallel to the main partition between the frame and the auxiliary partition.

Each of the plurality of dust collection compartments may have a filter space extending in an up-down direction, and the filter space may pass the gas passing through at least one of the main partition and the auxiliary partition Lead upward.

The dust collector according to an embodiment of the present disclosure can improve dust collection efficiency by uniformly introducing gas into the dust filter unit.

In addition, the dust collector can reduce the cost burden of maintaining the dust filter unit by delaying the replacement time of the dust filter unit.

Detailed description of preferred embodiments

Hereinafter, specific embodiments for implementing the spirit of the present disclosure will be described in detail with reference to the drawings.

When describing the present disclosure, detailed descriptions of known configurations or functions may be omitted to clarify the present disclosure.

When an element is referred to as being "connected to," "supported by," or "flowing" to another element, it will be understood that the element can be directly connected to, supported by, or flowed to the other element. flows to another element, but other elements may be present in between.

The terminology used in this disclosure is for describing particular embodiments only and is not intended to limit the disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Terms including serial numbers such as first and second may be used to describe various elements, but the corresponding elements are not limited by these terms. These terms are only used for the purpose of distinguishing one element from another element.

In this specification, it should be understood that terms such as "comprising" are intended to indicate the presence of specific features, regions, integers, steps, actions, elements, combinations and/or groups thereof disclosed in this specification, and are not intended to exclude the possibility that The possibility exists or may be added that one or more other specific features, regions, integers, steps, actions, elements, combinations and/or groups thereof may be added.

In this specification, expressions such as an upper surface, a lower surface, an upper surface and the like are described based on the drawings, and it should be noted in advance that they may be expressed in different ways when the orientation of the object is changed. In addition, the up and down direction, the front and rear direction, and the left and right direction may be the directions of the coordinate axes shown in FIGS. 1 to 4 .

Hereinafter, a specific configuration of the dust collector 1 according to one embodiment of the present disclosure will be described with reference to the drawings.

Referring to FIG. 1 , a dust collector 1 according to one embodiment of the present disclosure can collect dust contained in gas generated in a factory. Dust contained in gases may be understood to include all particles produced by factory facilities, boilers, cement, glass facilities and the like as well as fine dust and ultrafine dust. One side of the dust collector 1 may be provided with an inlet duct 410 which will be described later. The inlet duct 410 may provide space for gases generated in the factory to flow to the dust collector 1 . An outlet duct 420, which will be described later, may be provided on the other side of the dust collector 1. The outlet pipe 420 can discharge the gas filtered and purified by the dust collector 1 . The dust collector 1 may include a dust filter unit 100, a partition wall 200, an electrostatic dust collector 300, a housing 400, a blocking frame 500, and an induced draft (ID) fan (not shown in the figure).

The dust filter unit 100 collects residual dust that has passed through the electrostatic precipitator 300 without being collected by the electrostatic precipitator 300 . The dust filter unit 100 can be installed by modifying the interior of the housing 400 . In addition, the dust filter unit 100 may be installed inside the casing 400 in a state separated from the electrostatic dust collector 300 .

The dust filter unit 100 may include a plurality of filter bags 101 for collecting gaseous dust. The filter bag 101 can extend along the up and down direction. The plurality of filter bags 101 may be spaced apart from each other along the horizontal direction. The filter space 101a may be formed inside the filter bag 101. This filter bag 101 can be called, for example, "filter cloth". In addition, a bag cage capable of supporting the filter bag 101 can be provided inside the filter bag 101 . This bag cage can prevent the filter bag 101 from deforming due to negative pressure. In other words, the bag cage can prevent the filter bag 101 from shrinking under negative pressure, thereby maintaining the filtration efficiency of the filter bag 101.

The filter space 101a can guide the air flow through the partition wall 200. The filter space 101a may allow gas introduced through the filter surface of the filter bag 101 to flow upward. The filter space 101a may communicate with an outlet duct 420 which will be described later.

Additionally, the dust filter unit 100 may include a plurality of dust collection compartments. The dust filter unit 100 may include a first filter chamber 100a and a second filter chamber 100b. In addition, the first filter chamber 100a may include a first dust collection compartment 100-1, a second dust collection compartment 100-2, and a third dust collection compartment 100-3. The first dust collection compartment 100-1, the second dust collection compartment 100-2, and the third dust collection compartment 100-3 may be arranged in the front-rear direction.

The first dust collection compartment 100-1 may be divided by the left side of the housing 400, a first main partition wall to be described later, a first auxiliary partition wall front portion, and a middle partition wall 230. The gas passing through the first main partition wall and the first auxiliary partition wall may be introduced into the first dust collection compartment 100-1.

The second dust collection compartment 100-2 may be divided by the left side of the housing 400, the center portion of the first auxiliary partition wall, and the middle partition wall 230. The gas introduced into the passage 220b to be described later and passing through the first auxiliary partition wall may flow into the second dust collection compartment 100-2.

Meanwhile, the spirit of the present disclosure is not limited to the above, and when the passage 220b does not exist, the gas flowing in the first dust collection compartment 100-1 passes through the middle partition wall 230 and flows into the second dust collection compartment 100-1. 2 in. When channel 220b is not present, a space through which gas can pass, such as a plurality of perforations, may be formed in the middle partition wall 230.

The second dust collection compartment 100-2 may be disposed on the rear side of the first dust collection compartment 100-1. In addition, the first dust collection compartment 100-1 and the second dust collection compartment 100-2 may be separated by an intermediate partition wall 230.

The third dust collection compartment 100 - 3 may be divided by the left side of the housing 400 , the rear portion of the first auxiliary partition wall, and the middle partition wall 230 . The gas flowing through the channel 220b without entering the second dust collection compartment 100-2 may flow into the third dust collection compartment 100-3. Meanwhile, when the passage 220b is not provided, the gas flowing in the second dust collection compartment 100-2 may pass through the intermediate partition wall 230 and flow into the third dust collection compartment 100-3. The third dust collection compartment 100-3 may be disposed on the rear side of the second dust collection compartment 100-2. In addition, the second dust collection compartment 100-2 and the third dust collection compartment 100-3 may be separated by an intermediate partition wall 230.

The second filter chamber 100b may be spaced apart from the first filter chamber 100a in the left-right direction. The second filter chamber 100b may include fourth, fifth, and sixth dust collection compartments 100-4, 100-5, and 100-6. The fourth dust collection compartment 100-4, the fifth dust collection compartment 100-5, and the sixth dust collection compartment 100-6 may be arranged in the front-rear direction. In addition, the first dust collection compartment 100-1, the second dust collection compartment 100-2 and the third dust collection compartment 100-3 may be connected with the fourth dust collection compartment 100-4 and the fifth dust collection compartment respectively. The sixth dust collection compartment 100-5 and 100-6 are arranged opposite each other.

For example, the fourth dust collection compartment 100-4, the fifth dust collection compartment 100-5, and the sixth dust collection compartment 100-6 may be arranged relative to an imaginary line passing through the center of the passage 220b and extending in the front-rear direction. Straight lines are formed symmetrically with the first dust collection compartment 100-1, the second dust collection compartment 100-2, and the third dust collection compartment 100-3 respectively. At the same time, the above-mentioned first to sixth dust collection compartments 100-1, 100-2, 100-3, 100-4, 100-5 and 100-6 are only an example and have nothing to do with the above content and the drawings. Having said that, the number of dust collection compartments may vary depending on the size of the space inside the housing 400.

The partition wall 200 can guide the gas passing through the electrostatic precipitator 300 to the dust filter unit 100 . The partition wall 200 may include a plurality of partition walls 200 . In addition, the plurality of partition walls 200 may include first partition walls 201 and second partition walls 202 . The first partition wall 201 and the second partition wall 202 may be spaced apart from each other to be disposed on the left and right sides of the channel 220b respectively, which will be described later. In addition, the first partition wall 201 and the second partition wall 202 may be disposed symmetrically with respect to an imaginary straight line passing through the center of the channel 220b and extending in the front-rear direction.

The partition wall 200 may separate a plurality of dust collection compartments 100-1, 100-2, 100-3, 100-4, 100-5 and 100-6. The partition wall 200 may include a main partition 210, an auxiliary partition 220, and an intermediate partition 230. In addition, in this specification, the main partition 210 of the first partition 201 and the main partition 210 of the second partition 202 may be referred to as the first main partition and the second main partition respectively. Furthermore, in this specification, the auxiliary partitions 220 of the first partition wall 201 and the auxiliary partitions 220 of the second partition wall 202 may be referred to as first auxiliary partitions and second auxiliary partitions, respectively.

Referring further to FIG. 2 , the main partition 210 may direct a portion of the gas passing through the electrostatic precipitator to the dust filter unit 100 . The main partition 210 may be disposed between the dust filter unit 100 and the electrostatic precipitator 300 . For example, the main partition 210 may be disposed on the rear side of the electrostatic precipitator 300 and on the front side of the dust filter unit 100 . The front surface of the main partition 210 may be positioned facing the electrostatic precipitator 300 . In addition, the rear surface of the main partition 210 may be positioned to face the dust filter unit 100 . The main divider 210 may extend in a direction different from the front-to-back direction. For example, the main partition 210 may extend in the left-right direction. Main divider 210 may be connected to housing 400 . Additionally, the main partition 210 may be connected to the auxiliary partition 220 .

A plurality of first through holes 210a may be formed in the main partition 210. The plurality of first through holes 210a may be spaced apart from each other in the left-right direction and the up-down direction. The plurality of first through holes 210a may be through holes extending through the main partition 210 in the front-rear direction. The plurality of first through holes 210a may have one or more shapes among circular, oval, and polygonal shapes. For example, the first through hole 210a may have a circular shape with a diameter of 50 mm to 100 mm. However, the spirit of the present disclosure is not limited thereto, and the diameter of the first through hole 210a may vary depending on the airflow distribution.

The total porosity of the main partition 210 may be, for example, 20% to 60%. In addition, the porosity of the upper portion of the main partition 210 may be greater than the porosity of the lower portion of the main partition 210 . The total porosity of the main partition 210 can be determined by the first through hole 210a.

However, the spirit of the present disclosure is not limited to the above, and with further reference to FIG. 3, the total porosity can be determined by the first through hole 210a and the empty spaces S1 and S2. For example, the porosity of the upper portion of the main partition 210 may be 35% to 40%. The upper end of the main partition 210 may be positioned lower than the upper end of the auxiliary partition 220 . For example, an upper empty space S1 may be formed on an upper side of the main partition 210, and the gas passing through the electrostatic precipitator may flow into the upper empty space S1. The porosity of the upper portion of the main partition 210 can be determined by the upper empty space S1 and the plurality of first through holes 210a. The separation distance between the upper end of the main partition 210 and the upper end of the auxiliary partition 220 may be, for example, 10% to 30% of the length of the auxiliary partition 220 in the up-down direction.

In addition, the lower end of the main partition 210 may be positioned above the lower end of the auxiliary partition 220 . For example, a lower empty space S2 may be formed below the main partition 210 . The porosity of the lower portion of the main partition 210 can be determined by the lower empty space S2 and the plurality of first through holes 210a. The separation distance between the lower end of the main partition 210 and the lower end of the auxiliary partition 220 may be, for example, 10% to 20% of the length of the auxiliary partition 220 in the up-down direction.

Main divider 210 may include a plurality of main dividers. The plurality of main partitions 210 may be spaced apart from each other in a direction different from the front-to-back direction. For example, the plurality of main partitions 210 may be spaced apart from each other in the left-right direction. As a specific example, the plurality of main partitions 210 may include a first main partition and a second main partition. The left end of the first main partition may be connected to the left inner surface of the housing 400 , and the right end of the first main partition may be connected to the front end of the auxiliary partition 220 .

The right end of the second main partition may be connected to the housing 400 , and the left end of the second main partition may be connected to the front end of the auxiliary partition 220 . The first main partition and the second main partition may form the inlet end of channel 220b. For example, the left and right separation distances between the first main partition and the second main partition may be equal to the left and right width of the entrance end of the channel 220b. Additionally, the first main divider and the second main divider may be symmetrical about channel 220b, for example.

However, the spirit of the present disclosure is not necessarily limited to the above, and three or more main partitions 210 may be provided. Three or more main partitions 210 may be alternately arranged along the left-right direction with the inlet ends of the plurality of channels 220b. In addition, only one main partition 210 may be provided, and when only one main partition 210 is provided, only one of the above-described filter chambers 100a and 100b may be provided. As a detailed example, when only one main partition 210 is provided, the plurality of dust collection compartments 100-1, 100-2, 100-3, 100-4, 100-5 and 100-6 may be arranged in a single row along the front-rear direction. configuration.

Referring further to FIGS. 4 and 5 , the auxiliary partition 220 may guide another portion of the gas passing through the electrostatic precipitator to the dust filter unit 100 . For example, another portion of the gas that has passed through the electrostatic precipitator may be the remaining portion in addition to the gas that has passed through the main partition 210 . The auxiliary partition 220 may be disposed between the main partition 210 and the blocking frame 500 . For example, the front end of the auxiliary partition 220 may be disposed adjacent to the inner side of the main partition 210 , and the rear end of the auxiliary partition 220 may be connected to the blocking frame 500 . The inner side of the main partition 210 may refer to, for example, the right side of the first main partition. The auxiliary partition 220 may extend in the front-rear direction. The auxiliary partition 220 may be spaced apart from the side surface of the housing 400.

A plurality of second through holes 220a may be formed in the auxiliary partition 220. The plurality of second through holes 220a may be spaced apart from each other in the left-right direction and the up-down direction. The plurality of second through holes 220a may be through holes extending through the auxiliary partition 220 in a direction different from the front-rear direction. For example, the plurality of second through holes 220a may be through holes extending through the auxiliary partition 220 in the left-right direction. The plurality of second through holes 220a may have one or more shapes among circular, oval, and polygonal shapes. The plurality of second through holes 220a may include a first through hole group, a second through hole group, and a third through hole group.

In addition, among the plurality of second through holes 220a, the size of the second through hole 220a disposed on the rear side may be larger than the size of the second through hole 220a disposed on the front side. The size of the second through hole 220a may refer to the size of the area of the second through hole 220a when the auxiliary partition 220 is viewed from the left or right side of the auxiliary partition 220. As the size of the second through hole 220a disposed toward the rear side increases, the gas flowing along the channel 220b can evenly pass through the front part, the center part and the rear part of the auxiliary partition 220.

In addition, the auxiliary partition 220 may include a plurality of auxiliary partitions. The plurality of auxiliary partitions 220 may be spaced apart from each other in a direction different from the front-to-back direction. For example, a plurality of auxiliary partitions 220 may be disposed to be spaced apart from each other in the left-right direction.

The first perforation group may be formed in the front portion of the auxiliary partition 220 . The second through hole group may be formed in the central portion of the auxiliary partition 220 . A third perforation group may be formed in the rear portion of the auxiliary partition 220 . In addition, an upper empty space and a lower empty space may be formed on the upper and lower sides of the auxiliary partition 220 , respectively.

The porosity of the auxiliary partition 220 can be determined by the first to third perforation groups and the empty spaces above and below the auxiliary partition 220 . The porosity of the first to third through hole groups of the auxiliary partition 220 may be adjusted depending on the porosity of the first through hole 210a of the main partition 210. The porosity of the front portion of the auxiliary partition 220 may be, for example, 20% to 25%. In addition, the porosity of the central portion of the auxiliary partition 220 may be, for example, 30% to 50%. In addition, the porosity of the rear portion of the auxiliary partition 220 may be, for example, 30% to 50%.

Furthermore, the number of perforations of the first perforation group may be smaller than the number of perforations of the second perforation group. In addition, the number of perforations of the second perforation group may be equal to or less than the number of perforations of the third perforation group.

As a specific example, the plurality of auxiliary partitions 220 may include first auxiliary partitions and second auxiliary partitions. The front end of the first auxiliary partition may be connected to the right end of the first main partition, and the rear end of the first auxiliary partition may be connected to the blocking frame 500 .

The front end of the second auxiliary partition may be connected to the left end of the second main partition, and the rear end of the second auxiliary partition may be connected to the blocking frame 500 . The first auxiliary partition and the second auxiliary partition may form the channel 220b.

In the channel 220b, among the gas passing through the electrostatic precipitator 300, the gas introduced into the central portion of the channel 220b and some gas that has not passed through the main partition 210 may flow. The channel 220b may have a shape surrounded by a plurality of auxiliary partitions 220. Channel 220b may extend in the front-to-back direction. The width W1 of the channel 220b may be less than or equal to the width W2 of the main partition 210. The width W1 of the channel 220b may mean the separation distance between adjacent auxiliary partitions 220 in the left-right direction. In addition, the width W2 of the main partition 210 may refer to the length of the main partition 210 extending in the left-right direction. The width W2 of the main partition 210 may be, for example, 5 m or less, but is not limited thereto. The width of the channel 220b is determined by the distance (eg, the number of filter bags) over which the high-pressure air supplied to remove dust from the filter bags 101 in the dust collection compartment can maintain an appropriate pressure, and therefore, the width W2 of the main partition 210 The determination may be based on the width W1 of channel 220b.

For example, a blow pipe (not shown in the figure) may be provided at the upper side of the dust collection compartment, and the blow pipe is used to supply high-pressure air to the filter bag 101 at a predetermined pressure or higher for dust removal. The pressure and amount of air supplied to the filter bags 101 through the blow pipe can be determined depending on the number of filter bags 101 supplied with high-pressure air. This blowpipe can be designed according to predetermined limits based on the pressure loss and air volume of the high-pressure air to be supplied. For example, the blowpipe may be designed to supply high pressure air to 18 to 20 filter bags 101 arranged at intervals of 210 mm to 240 mm, and in this case the width of the dust collection compartment may be determined to be 5 m or less than 5 m. The intermediate partition 230 may block the flow of gas between adjacent dust collection compartments among the plurality of dust collection compartments 100-1, 100-2, 100-3, 100-4, 100-5, and 100-6. In other words, no perforations may be formed in the middle partition 230 . The middle partition 230 may be disposed between the housing 400 and the auxiliary partition 220 . The middle partition 230 may be disposed on the rear side of the main partition 210 and spaced apart from the main partition 210 . The middle partition 230 may extend in the left-right direction. The middle partition 230 may include a plurality of middle partitions. The plurality of intermediate partitions 230 may be spaced apart from each other in the front-rear direction. One part of the plurality of intermediate partitions 230 is disposed between the rear part of the auxiliary partition 220 and the casing 400, and another part is disposed between the central part of the auxiliary partition 220 and the casing 400, and the other part is disposed between the auxiliary partitions. between the front portion of member 220 and the housing 400. In other words, the rear, center and front portions of the auxiliary partition 220 may be divided by a plurality of intermediate partitions 230 . The plurality of intermediate partitions 230 may face the main partition 210 .

The electrostatic dust collector 300 can collect gaseous dust introduced into the dust collector 1 via electrostatic force. The electrostatic precipitator 300 can be installed inside the housing 400 . Electrostatic precipitator 300 may include a plurality of electrostatic precipitator chambers 301 and 302. The plurality of electrostatic precipitator chambers 301 and 302 may include a first electrostatic precipitator chamber 301 and a second electrostatic precipitator chamber 302 . The first electrostatic precipitator chamber 301 and the second electrostatic precipitator chamber 302 may be arranged along the front-to-back direction. Additionally, the first electrostatic precipitator chamber 301 may be disposed on the front side of the second electrostatic precipitator chamber 302 . Furthermore, the first electrostatic precipitator chamber 301 may be referred to as a first electrostatic precipitator field, and the second electrostatic precipitator chamber 302 may be referred to as a second electrostatic precipitator field. For example, one or both of the electrostatic precipitator chambers 301 and 302 can be placed in the interior area (facility space) of the housing 400 and the remaining area can be converted into the dust filter unit 100.

As a specific example, the number of electrostatic precipitator chambers may vary depending on the size of the facility space, and when the facility space is relatively small, a field of electrostatic precipitator chambers and the dust filter unit 100 may be placed in the facility. in space. In addition, when the facility space is relatively large, the two fields of the electrostatic precipitator chamber and the dust filter unit 100 can be placed in the facility space.

However, the spirit of the present disclosure is not limited to the above, and when changing the size of the facility space, the number of fields of electrostatic precipitator chambers disposed in the facility space may vary. In this manner, dust collection efficiency can be improved by modifying areas of the facility space other than the areas where electrostatic precipitator chambers 301 and 302 are positioned in dust filter unit 100 .

The electrostatic precipitator 300 may include a discharge electrode 310 and a collection electrode 320 .

In the discharge electrode 310 and the collection electrode 320, negative ions can flow from the discharge electrode 310 to the collection electrode 320 through the voltage supply device. When gas containing dust flows between these negative ion flows, the dust may collide with the negative ions and become negatively charged. Negatively charged dust may be transferred toward and attached to the collection electrode 320 by the attractive force (electrostatic force) acting between the dust and the collection electrode 320 . Dust attached to the collection electrode 320 can be removed by a hammering device (not shown in the figure). For example, the hammering device may impact the collection electrode 320 to separate dust from the collection electrode 320 . Some of the dust separated from the collection electrode 320 is collected into a space (hopper) formed below the electrostatic precipitator 300, and the other part may be discharged to the outside via a communication pipe or the like.

The discharge electrode 310 may include a plurality of discharge electrodes, and the collection electrode 320 may include a plurality of collection electrodes. The plurality of discharge electrodes 310 and the plurality of collection electrodes 320 may be alternately arranged along the left-right direction.

For example, the separation distance between two collection electrodes 320 that are adjacent to each other may be, for example, 300 mm or 400 mm. However, the spirit of the present disclosure is not limited thereto, and the distance between two collection electrodes 320 adjacent to each other may be less than 300 mm. In addition, the distance between two collection electrodes 320 adjacent to each other may be greater than 400 mm, and may be, for example, 500 mm. One discharge electrode 310 may be disposed between two collection electrodes 320 adjacent to each other. A gas channel through which gas can pass may be disposed between two collection electrodes 320 adjacent to each other. For example, 30 to 40 gas channels may be provided in the electrostatic precipitator 300 placed in a field. For example, when 30 gas channels with a width of 400 mm are provided in the electrostatic precipitator 300, the width of the electrostatic precipitator 300 may be 12 m. However, the number of gas channels and the width of the electrostatic precipitator 300 described above are only examples and are not limited thereto.

Additionally, multiple electrostatic precipitator chambers 301 and 302 may operate electrically independently of each other. For example, each of the plurality of electrostatic precipitator chambers 301 and 302 may include an independent power supply. Through this independent power supply device, even if an electrical short circuit occurs in some of the plurality of discharge electrodes 310 and the plurality of collection electrodes 320 and the operation is stopped, the remaining parts can still operate normally.

The housing 400 may support the dust filter unit 100, the partition wall 200, and the electrostatic precipitator 300. The housing 400 may form the external appearance of the dust collector 1 . Housing 400 may include an inlet duct 410 and an outlet duct 420 . The inlet duct 410 may be disposed at the front of the electrostatic precipitator 300 . The outlet duct 420 may direct the purified gas passing through the filter space 101a and the clean plenum (CP) up through the chimney. The clean plenum CP may be defined as a space where gas flows through the filter space 101a. The clean plenum CP can be placed above the filter space 101a. The outlet duct 420 may be positioned above the channel 220b.

In addition, the nozzle 400a may be provided on the front side of the housing 400. Nozzle 400a may be referred to as a "plenum." The nozzle 400a may have a shape in which the width increases toward the rear. In addition, the nozzle 400a may be disposed between the inlet duct 410 and the electrostatic precipitator 300.

The blocking frame 500 can prevent the gas flowing through the channel 220b from leaking from the dust collector 1 . The blocking frame 500 may close the rear end of the channel 220b. The blocking frame 500 may be connected to the housing 400 . For example, the blocking frame 500 may be integrally formed with the housing 400 .

The ID fan may allow the gas introduced into the dust filter unit 100 to flow into the filter space 101a. The ID fan may allow purified gas to flow to outlet duct 420. The ID fan may be placed between the dust filter unit 100 and the chimney.

In the following, the operation and effects of the dust collector 1 according to one embodiment of the present disclosure will be described.

The gas generated in the factory can flow into the dust collector 1 through the inlet pipe 410. Gas introduced into inlet conduit 410 may flow into chamber 400a. Dust in the gas passing through the inlet duct 410 may be partially removed while passing through the electrostatic precipitator 300 .

Some of the gas passing through the electrostatic precipitator 300 may pass through the first perforations 210a to flow into the first and fourth dust collection compartments 100-1 and 100-4. In addition, the remaining gas that has not passed through the first through hole 210a may flow into the channel 220b. Some of the gas introduced into the channel 220b may pass through the second through hole 220a in the front part of the auxiliary partition 220 to flow into the first and fourth dust collection compartments 100-1 and 100-4. In addition, the gas that has not flowed into the first dust collection compartment 100-1 and the fourth dust collection compartment 100-4 can pass through the second through hole 220a in the central portion of the auxiliary partition 220 to flow into the second dust collection compartment. chamber 100-2 and a fifth dust collection compartment 100-5. In addition, the gas that has not flowed into the second dust collection compartment 100-2 and the fifth dust collection compartment 100-5 can pass through the second through hole 220a in the rear portion of the auxiliary partition 220 to flow into the third dust collection compartment. chamber 100-3 and a sixth dust collection compartment 100-6.

The gas introduced into the first to sixth dust collection compartments 100-1, 100-2, 100-3, 100-4, 100-5 and 100-6 can flow into the filter space 101a through the filter surface of the filter bag 101 . Gas introduced into the filter space 101a can flow upward to the outlet pipe. When the gas passes through the filter bag 101 to flow into the filter space 101a, residual dust included in the gas may be collected in the dust filter unit 100. The purified gas from which residual dust has been removed may flow to the chimney through the outlet duct 420 by the ID fan.

The dust collector 1 can uniformly introduce gas into multiple compartments (or chambers) to prevent excessive inflow of gas into any one compartment.

Examples of the present disclosure have been described above as specific embodiments, but these specific embodiments are only examples, and the present disclosure is not limited thereto and should be interpreted to have the widest scope according to the technical spirit disclosed in this specification. . One of ordinary skill in the art may combine/substitute the disclosed embodiments to implement patterns of undisclosed shapes without departing from the scope of the present disclosure. In addition, those with ordinary skill in the art can easily change or modify the disclosed embodiments based on this description, and it is obvious that such changes or modifications also fall within the scope of the present disclosure.

1:Dust collector 100:Dust filter unit/Dust filter unit 100a: First filter chamber 100b: Second filter chamber 100-1: First dust collection compartment 100-2: Second dust collection compartment 100-3: Third dust collection compartment 100-4: Fourth dust collection compartment 100-5: Fifth dust collection compartment 100-6: Sixth dust collection compartment 101:Filter bag 101a:Filter space 200:Partition wall 201:First dividing wall 202:Second dividing wall 210: Main divider 210a: First perforation 220: Auxiliary divider 220a: Second perforation 220b:Channel 230:Intermediate partition wall/intermediate partition 300:Electrostatic precipitator 301: First electrostatic precipitator chamber 302: Second electrostatic precipitator chamber 310: Discharge electrode 320:Collection electrode 400: Shell 400a:Nozzle 410:Inlet pipe 420:Export pipe 500: blocking frame A-A',B-B',C-C': line S1: upper empty space S2: Empty space in the lower part W1, W2: Width

Figure 1 is a plan view of one embodiment according to the present disclosure. FIG. 2 is a longitudinal cross-sectional view taken along line AA' of FIG. 1 . FIG. 3 is a longitudinal cross-sectional view showing a modified state of the shape of the main partition in FIG. 2 . Figure 4 is a side cross-sectional view taken along line BB' of Figure 1 . Figure 5 is a side cross-sectional view taken along line CC' of Figure 1 .

1:Dust collector

100:Dust filter unit/Dust filter unit

100a: First filter chamber

100b: Second filter chamber

100-1: First dust collection compartment

100-2: Second dust collection compartment

100-3: Third dust collection compartment

100-4: Fourth dust collection compartment

100-5: Fifth dust collection compartment

100-6: Sixth dust collection compartment

101:Filter bag

101a:Filter space

200:Partition wall

210: Main divider

210a: First perforation

220: Auxiliary divider

220b:Channel

230:Intermediate partition wall/intermediate partition

300:Electrostatic precipitator

301: First electrostatic precipitator chamber

302: Second electrostatic precipitator chamber

310: Discharge electrode

320:Collection electrode

400: Shell

400a:Nozzle

410:Inlet pipe

420:Export pipe

500: blocking frame

A-A',B-B',C-C': line

W1, W2: Width

Claims (13)

A dust collector containing: An electrostatic precipitator used to collect dust contained in a gas; a dust filter unit including a plurality of filter bags for collecting residual dust in the gas passing through the electrostatic precipitator; and a dividing wall that guides the gas passing through the electrostatic precipitator to the dust filter unit, The dividing wall includes: a main partition configured to direct a portion of the gas passing through the electrostatic precipitator to the dust filter unit; and An auxiliary partition configured to direct another portion of the gas passing through the electrostatic precipitator to the dust filter unit. The dust collector of claim 1, wherein the partition wall includes a plurality of partition walls, and the plurality of partition walls include a first partition wall and a second partition wall spaced apart from each other in a direction different from a front-rear direction. next door. The dust collector of claim 2, wherein the dust filter unit is disposed on a rear side of the electrostatic precipitator, and the main partition between the electrostatic precipitator and the dust filter unit is different from the front and rear sides. extends in one direction. The dust collector of claim 3, wherein the auxiliary partition extends rearwardly from the main partition, and the auxiliary partition includes a first auxiliary partition and a first auxiliary partition spaced apart from each other in a direction different from the front-rear direction. 2 auxiliary dividers, and One of the channels is formed between the first auxiliary partition and the second auxiliary partition, and another part of the gas passing through the electrostatic precipitator flows through the channel. The dust collector of claim 4, wherein the main partition includes a first main partition and a second main partition, and an inlet of the channel is provided between the first main partition and the second main partition. between. The collector of claim 5 further includes a blocking frame closing one of the backends of the channel. The dust collector of claim 1, wherein a plurality of first perforations are formed in the main partition, and a part of the gas passing through the electrostatic precipitator flows to the dust filter through the plurality of first perforations. unit, and A plurality of second perforations are formed in the auxiliary partition, and another part of the gas passing through the electrostatic precipitator flows to the dust filter unit through the plurality of second perforations. The dust collector of claim 7, wherein the plurality of first through holes are through holes extending through the main partition in a front-rear direction and are configured to be spaced apart from each other in an up-down direction. The dust collector of claim 8, wherein the plurality of second through holes extend through the auxiliary partition in a direction different from the front-rear direction and are configured to be spaced apart from each other in the up-down direction. The dust collector of claim 1, wherein hollow spaces are formed above and below the main partition, and part of the gas passing through the electrostatic precipitator flows to the dust filter unit through the hollow spaces. The dust collector of claim 1 further includes a frame supporting the partition wall, The auxiliary partition extends in a front-rear direction, and the main partition is oriented in a direction different from the front-rear direction between the frame and a front end of the auxiliary partition. The dust collector of claim 11, wherein the dust filter unit includes a plurality of dust collection compartments, The partition wall further includes an intermediate partition blocking a flow of the gas between adjacent compartments among the plurality of compartments, and The intermediate partition is oriented parallel to the main partition between the frame and the auxiliary partition. The dust collector of claim 12, wherein each of the plurality of dust collection compartments has a filter space extending in an up-and-down direction, and The filter space guides the gas passing through at least one of the main partition and the auxiliary partition upward.