KR20130065999A - A magnetic filter for gathering oxidized steel dust at chimney - Google Patents

A magnetic filter for gathering oxidized steel dust at chimney Download PDF

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Publication number
KR20130065999A
KR20130065999A KR1020110132646A KR20110132646A KR20130065999A KR 20130065999 A KR20130065999 A KR 20130065999A KR 1020110132646 A KR1020110132646 A KR 1020110132646A KR 20110132646 A KR20110132646 A KR 20110132646A KR 20130065999 A KR20130065999 A KR 20130065999A
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KR
South Korea
Prior art keywords
stack
iron oxide
boiler
filter
magnet
Prior art date
Application number
KR1020110132646A
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Korean (ko)
Inventor
조종춘
조상현
정동현
김용건
엄영일
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조종춘
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Application filed by 조종춘 filed Critical 조종춘
Priority to KR1020110132646A priority Critical patent/KR20130065999A/en
Publication of KR20130065999A publication Critical patent/KR20130065999A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/04—Traps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The present invention relates to an iron oxide dust collecting magnet filter structure for a boiler stack, and more particularly, a boiler stack having a fine iron oxide powder generated when a boiler is used and exiting the stack, which can be effectively collected and removed from the stack using a magnetic force. It relates to an iron oxide dust collecting magnet filter structure for.
The present invention, while holding the top of the stack (5) connected to the boiler while the magnetic filter structure is mounted to the top of the stack (5) (4); A plurality of supports (2) installed on the holder (4) in two or more layers parallel to each other horizontally with the ground; A plurality of filter blades (1) attached to the support (2) and having magnets coupled to collect iron oxide powder; It is characterized in that it comprises a gas flow control panel (6) attached to the center of the support (2) closest to the ground of the support (2) to control the flow of gas to the stack (5).
According to the present invention, since the iron oxide fine particles scattered through the stack of the industrial boiler are mostly magnetized materials adsorbed to the magnet, the magnetic filter of the present invention may fundamentally block their discharge. In addition, the magnetic filter for the boiler stack according to the present invention can be used in a high temperature environment by using a permanent magnet that can withstand temperature well, and can also be used as an external magnetic filter that can apply a magnetic field to the outside of the stack using an electromagnet or a strong permanent magnet. It can be effective.

Description

Magnetic filter for gathering oxidized steel dust at chimney

The present invention relates to an iron oxide dust collecting magnet filter structure for a boiler stack, and more particularly, a boiler stack having a fine iron oxide powder generated when a boiler is used and exiting the stack, which can be effectively collected and removed from the stack using a magnetic force. It relates to an iron oxide dust collecting magnet filter structure for.

In general, boilers are used in power generation facilities and large hot water supply systems. Most of these boilers use iron-based materials as heat exchange tubes (Wall Tubes, Superheater Tubes, Eva., Eco., Etc. Tubes) to generate iron oxide powders, and fine iron oxide powders are released to the outside through stacks. It has the problem of polluting.

In addition, the fine iron oxide powder leaked to the outside has a great impact on the health and daily life of the residents living around it has been raised a lot of complaints are recognized as a problem to be solved urgently. Therefore, in the present invention, to solve this problem, by devising a magnet assembly capable of collecting the iron oxide powder to block the outflow of the iron oxide powder generated in the stack of a large industrial boiler.

An example of the prior art is to remove the toxic substances emitted from the stack using a magnet, and magnetic field magnetic soot purification water spray communication attached to the chimney body disclosed in Korean Utility Model Registration No. 20-0246319. Fig. 1 is an overall sectional view of the magnetic field soot purifying water spray communication according to the prior art.

As shown in Figure 1, in the prior art, the up and down vertical cooling water sprinkling pipe (18) (18 ') and the permanent magnet for forming the magnetic field around the inner wall of the magnetic field winding soot purifying bottom communication 16 made of a non-ferrous metal plate material Magnets (or electromagnets) are placed to allow the magnetic field to be formed, and the flue gas top communication (17) also installs a vertical water spray pipe (18) (18 ') and a permanent magnet (B) for forming the magnetic field. So that the magnetic field is formed.

In this way, toxic substances such as heavy metals generated in the boiler 10 are freed by magnetic field disturbance when high-temperature combustion gas passes through the magnetic field range of the flue gas purification bottom communication 16 and the flue gas purification top communication 17. While the discharge activity is blocked, high pressure cooling water is sprayed and the temperature is rapidly cooled down to a temperature of 50 ° C or less, and the physicochemical condensation change between the toxic substance molecules and the water molecules proceeds to purify with water. Be sure to

However, in the prior art as described above, in order to use the magnet to prevent free discharge of toxic substances, the upper communication 17 and the lower communication 16, the high-pressure water spray motor 19, the condensation waste water purification system 13, etc. There is a problem in that facility investment is required, and as the present invention does not target the collection of the iron oxide powder, the collection function of the iron oxide powder using the force of the magnet is inevitably weak, and the stack itself remains as it is. Since it is to collect toxic substances in a separate communication in the state, there is a problem that there is no blocking method for the discharge of toxic substances such as heavy metals through the stack itself. In particular, for the outflow of the iron oxide powder generated in the stack of a large industrial boiler, a special measure is required to block it, but there is no clear solution yet.

The present invention has been made to solve the problems of the prior art as described above, the present invention fundamentally blocks the outflow of the fine iron oxide powder generated in the boiler to the outside of the stack to prevent environmental pollution and health of residents living nearby Its purpose is to provide a magnetic filter for boiler stack that can keep the daily life and inconvenience.

In order to achieve the above object, the present invention, the iron oxide dust collecting magnet filter structure for the boiler stack, the cradle (4) and the magnetic filter structure is mounted on the stack (5) while the top of the stack (5) connected to the boiler and ; A plurality of supports (2) installed on the holder (4) in two or more layers parallel to each other horizontally with the ground; A plurality of filter blades (1) attached to the support (2) and having magnets coupled to collect iron oxide powder; It is characterized in that it comprises a gas flow control panel (6) attached to the center of the support (2) closest to the ground of the support (2) to control the flow of gas to the stack (5).

In addition, in the present invention, the magnet coupled to the filter blade (1) is a permanent magnet 12, characterized in that the permanent magnet housing 11 is installed to allow the permanent magnet is installed, the filter blade (1) ) Has a slope of 10 to 45 degrees with the ground, but in the same support layer, it forms a symmetrical inclined structure facing the left and right middle lines (AA), and is installed in a symmetrical inclined structure facing the upper and lower middle lines (BB) between adjacent support layers. It is characterized by.

In addition, in the present invention, a handler (3) is further provided on the upper end of the holder (4) to move the magnetic filter structure, and the gas flow control panel (6) is formed of one or more layers in multiple layers. It is characterized by.

Another one of the present invention, the iron oxide dust collecting magnet filter structure for the boiler stack, the cradle (4) to surround the top of the stack (5) communicated to the boiler so that the magnetic filter structure is mounted on the top of the stack (5); A plurality of supports (2) installed on the holder (4) in two or more layers parallel to each other horizontally with the ground; A plurality of filter blades (1) attached to the support (2) and made of a magnetizable material to collect iron oxide powder; An electromagnet 7 coupled to the mount 4 of the outer side of the stack 5 to magnetize the filter blade 1; It is characterized in that it comprises a gas flow control panel (6) attached to the center of the support (2) closest to the ground of the support (2) to control the flow of gas to the stack (5).

In another embodiment of the present invention, the filter blade 1 has an inclination of 10 to 45 degrees with the ground, and forms a symmetrical inclined structure facing the left and right middle lines AA in the same support layer, and the upper and lower middle lines between adjacent support layers. Characterized in that it is installed in a symmetrical inclined structure facing the (BB), and also characterized in that the handler (3) is further installed on the upper end of the holder (4) to move the magnetic filter structure. The gas flow control panel 6 is characterized by being formed in one or more layers and multiple layers.

According to the present invention, since the iron oxide fine particles scattered through the stack of the industrial boiler are mostly magnetized materials adsorbed to the magnet, the magnetic filter of the present invention may fundamentally block their discharge.

In addition, the magnetic filter for the boiler stack according to the present invention can be used in a high temperature environment by using a permanent magnet that can withstand temperature well, and can also be used as an external magnetic filter that can apply a magnetic field to the outside of the stack using an electromagnet or a strong permanent magnet. It can be effective.

Fig. 1 is an overall sectional view of the magnetic field soot purification water spray communication according to the prior art.
2 is a perspective view of a built-in magnetic filter structure according to the present invention.
3 is a plan view of a built-in magnet filter structure according to the present invention.
4 is a conceptual view of a top section of a stack having a built-in magnetic filter structure according to the present invention, and an upper portion thereof is an enlarged conceptual view of a filter blade constituting a part of the magnetic filter.
5 is a conceptual diagram of a top section of a stack top mounted with an external magnetic filter structure according to the present invention.
Figure 6 is a photograph of the iron oxide powder adsorbed on the permanent magnet bonded to the filter blade of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In general, iron oxide powder generated in the iron-based apparatus of a large boiler and diffused through the stack is ferromagnetic material, and thus shows good adsorption to the magnet as shown in the photograph of FIG. 6. Therefore, in the present invention, a magnetic filter for capturing the same by using the magnetic properties of the iron oxide powder is devised.

The present invention is the most powerful to collect the fine iron oxide powder generated when using a large industrial boiler, it is possible to use an Nd-Fe-B-based magnet that can withstand high temperatures of 100 ~ 130 ℃ well or to use an electromagnet assembly very freedom high. In the case of collecting the fine iron oxide powder in the present invention, it may be classified into a built-in magnet filter for installing a magnet inside the stack and an external magnet filter for installing an electromagnet or permanent magnet outside the stack. This will be described below.

<Built-in Magnetic Filter>

2 is a perspective view of a built-in magnetic filter structure according to the present invention. 3 is a plan view of a built-in magnet filter structure according to the present invention. 4 is a front sectional conceptual view showing a state in which a built-in magnetic filter structure according to the present invention is mounted on top of a stack, and an enlarged conceptual view of a filter blade constituting a part of the magnetic filter at an upper portion thereof.

Referring to FIGS. 2 and 3, a built-in magnetic filter structure in which a magnet is installed in the stack may surround the top of the stack 5 connected to the boiler while the magnetic filter structure may be mounted on the stack 5. (4) is formed.

As shown in FIG. 2, the portion where the holder 4 is in contact with the top of the stack 5 is configured to have a shape such as an upper portion of a hollow circular hula hoop horizontally cut and placed on the stack 5. (5) The length of the side going into the inside is formed longer toward the bottom of the stack than the length of the side located outside the stack (5). Therefore, as shown in Figure 4, the cross-section of the cradle 4 is shaped like the U-shaped upside down, except that the cross section of the side located inside the stack is long.

In FIG. 2, the flat section of the stack 5 is shown as an embodiment. The shape of the cradle 4 is not limited thereto, and may have various shapes such as a circle and a polygon, depending on the flat cross-sectional shape of the stack 5. As shown in FIG. 4, a handler 3 may be further installed at the top of the holder 4 to lift and move the magnetic filter structure using equipment such as a crane.

The holder 4 is coupled to a plurality of supports (2) which are installed in two or more layers parallel to each other horizontally to the ground. The support 2 is coupled to a plurality of support connecting portion 8 formed in the cradle (4). As shown in FIG. 3, the support 2 has a rectangular rod or rod shape, and a plurality of supports 2 having different lengths are connected to the support connecting portion 8 of the support 4 parallel to each other in one horizontal plane. Combined to form a support layer. (This specification refers to this as "support layer.")

Two support layers may be coupled to one cradle 4 as shown in FIG. 4, and two or more support layers may be coupled as necessary. As the coupling method of the holder 4 and the support 2, hook type, screw type, and other known coupling methods are used.

The support 2 is attached to a plurality of filter blades 1, the magnet is coupled to collect the iron oxide powder. As shown in an enlarged view of the upper part of FIG. 4, the filter blade 1 may be configured in a form in which the permanent magnet 12 is embedded in the permanent magnet housing 11. It is also possible to comprise the entire filter blade 1 only with pure permanent magnets. The built-in magnet filter is preferably made of Nd-Fe-B-based permanent magnets that can withstand high temperatures in the form of filters and installed inside the stack so that the iron oxide powder, which is flying even in a high temperature environment, is directly collected in the magnet or magnetized material.

However, in the case of the external magnetic filter described below, the filter blade 1 is not composed of a permanent magnet in principle, but uses a magnetic field induced by the magnet to exhibit magnetic properties (eg, iron, cobalt, nickel, or Nickel plated iron). If necessary, of course, even in the case of an external magnetic filter can be mixed with a permanent magnet.

The filter blade 1 is installed to have a slope of 10 to 45 degrees with the ground. 4 shows a structure in which the filter blade 1 is installed at an inclined angle, and the inclination is assumed that the filter blade 1 of FIG. 4 is placed on the ground, and the plane of the filter blade 1 facing the ground is grounded. And the angle to make up.

In addition, the filter blade 1 has a symmetrical inclined structure in which the left and right filter blades 1 face each other toward the left and right middle lines A-A, which are vertically cut based on the magnet filter structure shown in FIG. 3. In addition, as shown in Fig. 4, even between the upper and lower adjacent support layers, the upper and lower filter blades 1 are provided in a symmetrical inclined structure facing each other with the upper and lower middle lines B-B at the center.

As described above, the filter blade 1 of the present invention has a constant inclination, and the left and right filter blades 1 horizontally arranged in one support layer face the left and right middle lines AA and form a symmetrical structure. Further, the reason why the filter blades 1 arranged between the upper and lower adjacent layers face the upper and lower middle lines BB to form a symmetrical structure is because the magnetic filter structure of the present invention is mounted on the top of the stack, so that Nevertheless, while the ventilation of the smoke generated in the boiler is well ventilated, all the smoke must be discharged to the outside via the filter blade (1), so that the fine iron oxide powder contained therein comes into contact with a magnet or a magnetic material to thoroughly To be collected and to minimize the rise of the pressure inside the stack through the magnetic filter structure. Will.

In the magnetic filter structure of the present invention, as shown in Figures 2 to 4 to control the flow of gas from the bottom portion of the stack 5 to the center of the support (2) of the support (2) closest to the ground The gas flow control panel 6 is attached. This gas flow control panel 6 is shown in a circular structure in FIG. 3, but can be changed and adjusted according to the flat cross-sectional structure of the stack. In addition, the gas flow control panel 6 may be provided in multiple layers of one or more layers as necessary.

The gas flow control panel 6 has a function of guiding the flow of gas passing through the center of the stack to the edge of the stack. In particular, in the external magnetic filter, the gas flow control panel 6 guides the gas passing through the center of the stack to the edge of the stack having a strong magnetic field, thereby making it possible to collect the iron oxide powder more effectively.

<External Magnet Filter>

5 is a conceptual diagram of a top section of a stack top mounted with an external magnetic filter structure according to the present invention. The external magnetic filter structure of the present invention includes all the configurations of the above-described internal magnetic filter structure, except for the following two things.

First, the filter blade (1) is not composed of permanent magnets in principle, but is made of magnetizable material (eg iron, cobalt, nickel, or nickel-plated iron, etc.) having magnetic characteristics by using a magnetic field induced by a magnet. Configure. If necessary, of course, even in the case of an external magnetic filter can be mixed with a permanent magnet.

Second, in the external magnetic filter structure of the present invention, the electromagnet 7 is coupled to the holder 4 of the outer side portion of the stack 5 to magnetize the filter blade 1. In this case, if necessary, the permanent magnet may be used instead of the electromagnet 7, or the electromagnet and the permanent magnet may be mixed.

In addition to the above differences, all configurations and functions described above with respect to the built-in magnetic filter structure, the holder 4, the support 2, the gas flow control panel 6, the handler 3, and the like are applied to the external magnetic filter structure equally. The detailed description is omitted and the same content is assumed to be described herein.

In addition to the above description, the configuration and operation of the present invention will be described in detail below.

Nd-Fe-B-based magnets used as permanent magnets in the present invention is the largest magnetic force among commercially available permanent magnets, and the magnetic field on the surface thereof is more than 4500 gauss. Approaching the fine iron oxide particles to a magnet having a surface magnetic field of such strength, more than 90% is adsorbed within 5mm and 99% or more within 3mm.

By using this phenomenon, when the flowing gas containing the fine iron oxide powder is blown onto the strong magnet surface, the fine iron oxide powder can be collected. If the flow rate of the flowing gas is large, a filter using a strong magnet should be used. If the flow rate is weak, the magnetic field strength may be sufficiently collected even if the flow rate is weak. Important points here are magnet placement and filter design. The magnet arrangement should be structured to collect the fine iron oxide powder as much as possible. In the case of the filter, sufficient fluidity should be ensured so that the flowing gas does not go through the filter without being discharged and the boiler turbine has no pressure rise. The present invention reflects this technical idea.

In addition, since the temperature of the upper part of the stack is maintained at about 100 ° C, it is also very important to use a magnet having excellent heat resistance. In general, Nd-Fe-B-based magnets have a weak temperature, but recently there is also a product having a use temperature of 150 ℃ or more can utilize the magnetic filter of the present invention can effectively collect the fine iron oxide powder.

If the magnetic dust collecting filter is to be installed at a higher temperature, the magnetic force is about 1/4 of that of the Nd-Fe-B magnet mentioned above, but AlNiCo or SaCo magnets with a working temperature of 250 ° C or higher may be used.

In the case of the external magnetic filter structure of the present invention using the electromagnet 7, the electromagnet 7 is vulnerable to temperature, so the electromagnet 7 is disposed outside the stack 5 and sufficient magnetic field is provided to the inside of the stack 5. The current was applied to the extent that it could be formed so as to have a structure capable of collecting the flying iron oxide powder. In particular, the magnetic field strength is inversely proportional to the square of the distance away from the electromagnet, so a structure capable of collecting iron oxide powder should be located as close to the electromagnet as possible. Thus, the present invention allows the electromagnet 7 to be fixed to the cradle 4 of the chimney outer wall closest to the filter blade 1 of the magnetizable material.

In addition, in the case of the external type magnetic filter structure of the present invention, it is necessary to control the gas flow which can guide the flow of gas passing through the center of the stack 5 to the edge of the stack. The gas flow control panel 6 of the present invention guides the gas passing through the center of the stack to the edge of the stack having strong magnetic field strength, thereby making it possible to collect the iron oxide powder more effectively. The fine iron oxide powder dust collecting device using an electromagnet has a merit that the dust collecting powder can be easily removed because the magnetic field strength of the electromagnet can be arbitrarily adjusted while the installation temperature needs to be installed outside the stack due to the low use temperature.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the embodiments described herein are by way of example only and are not to be construed as limiting the scope of the present invention. It is clear that it is possible to transform. Further, any matter which has substantially the same constitution as the technical idea described in the claims of the present invention and achieves the same operational effect is included in the technical scope of the present invention.

1 filter blade 2 support 3 handler
4 cradle 5 stack 6 gas flow control panel
7: electromagnet 8: connection part 11: permanent magnet housing
12: permanent magnet

Claims (9)

A cradle 4 for wrapping the upper portion of the stack 5 in communication with the boiler and allowing the magnetic filter structure to be mounted on the stack 5;
A plurality of supports (2) installed on the holder (4) in two or more layers parallel to each other horizontally with the ground;
A plurality of filter blades (1) attached to the support (2) and having magnets coupled to collect iron oxide powder;
Iron oxide for boiler flue, characterized in that it comprises a gas flow control panel (6) attached to the center of the support (2) closest to the ground of the support (2) to control the flow of gas to the stack (5) Dust Collecting Magnetic Filter Structure The method of claim 1,
The magnet coupled to the filter blade (1) is a permanent magnet 12, the permanent magnet housing 11 is provided with a permanent magnet housing 11 for inserting the permanent magnet is installed, characterized in that the iron oxide dust collecting magnet filter structure for boiler stack The method of claim 1,
The filter blade 1 has an inclination of 10 to 45 degrees with the ground, but forms a symmetrical inclined structure facing the left and right middle lines AA in the same support layer, and symmetrically facing the upper and lower middle lines BB between adjacent support layers. Iron oxide dust collecting magnet filter structure for boiler stack, characterized in that installed in a slope structure The method of claim 1,
The upper end of the holder (4) is characterized in that the handler (3) is further installed to move the magnetic filter structure, the iron oxide dust collecting magnet filter structure for boiler stack The method of claim 1,
The gas flow control panel 6 is iron oxide dust collecting magnet filter structure for the boiler stack, characterized in that formed in at least one layer. A cradle 4 for wrapping the upper portion of the stack 5 in communication with the boiler and allowing the magnetic filter structure to be mounted on the stack 5;
A plurality of supports (2) installed on the holder (4) in two or more layers parallel to each other horizontally with the ground;
A plurality of filter blades (1) attached to the support (2) and made of a magnetizable material to collect iron oxide powder;
An electromagnet 7 coupled to the mount 4 of the outer side of the stack 5 to magnetize the filter blade 1;
Iron oxide for boiler flue, characterized in that it comprises a gas flow control panel (6) attached to the center of the support (2) closest to the ground of the support (2) to control the flow of gas to the stack (5) Dust Collecting Magnetic Filter Structure The method according to claim 6,
The filter blade 1 has an inclination of 10 to 45 degrees with the ground, but forms a symmetrical inclined structure facing the left and right middle lines AA in the same support layer, and symmetrically facing the upper and lower middle lines BB between adjacent support layers. Iron oxide dust collecting magnet filter structure for boiler stack, characterized in that installed in a slope structure The method according to claim 6,
The upper end of the holder (4) is characterized in that the handler (3) is further installed to move the magnetic filter structure, the iron oxide dust collecting magnet filter structure for boiler stack The method according to claim 6,
The gas flow control panel 6 is iron oxide dust collecting magnet filter structure for the boiler stack, characterized in that formed in at least one layer.
KR1020110132646A 2011-12-12 2011-12-12 A magnetic filter for gathering oxidized steel dust at chimney KR20130065999A (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105476563A (en) * 2015-12-16 2016-04-13 桐城市神墩环卫保洁有限公司 Broom capable of being vertically placed conveniently
KR20160097527A (en) 2015-02-09 2016-08-18 김천섭 Hybrid dust collector using a magnetic
KR20160114972A (en) 2015-03-25 2016-10-06 김천섭 Hybrid dust collector using a magnetic
KR20200126120A (en) * 2019-04-29 2020-11-06 주식회사 오르비스 Compound filter preventing iron oxide emission
KR102334066B1 (en) * 2021-01-13 2021-12-06 주식회사 삼진에이치에스 Water-saving water-saving device for reverse return method of construction machinery construction
KR102549969B1 (en) 2022-11-15 2023-07-17 한국중부발전(주) Non-replaceable filter with advance and retractable iron oxide dust collector of Heat Recovery Steam Generator
CN117167745A (en) * 2023-09-20 2023-12-05 上海宝达环境科技有限公司 Small household garbage incinerator grate with waste heat utilization device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160097527A (en) 2015-02-09 2016-08-18 김천섭 Hybrid dust collector using a magnetic
KR20160114972A (en) 2015-03-25 2016-10-06 김천섭 Hybrid dust collector using a magnetic
CN105476563A (en) * 2015-12-16 2016-04-13 桐城市神墩环卫保洁有限公司 Broom capable of being vertically placed conveniently
CN105476563B (en) * 2015-12-16 2017-10-31 杨柳 A kind of broom for being easy to stand up
KR20200126120A (en) * 2019-04-29 2020-11-06 주식회사 오르비스 Compound filter preventing iron oxide emission
KR102334066B1 (en) * 2021-01-13 2021-12-06 주식회사 삼진에이치에스 Water-saving water-saving device for reverse return method of construction machinery construction
KR102549969B1 (en) 2022-11-15 2023-07-17 한국중부발전(주) Non-replaceable filter with advance and retractable iron oxide dust collector of Heat Recovery Steam Generator
CN117167745A (en) * 2023-09-20 2023-12-05 上海宝达环境科技有限公司 Small household garbage incinerator grate with waste heat utilization device
CN117167745B (en) * 2023-09-20 2024-05-07 上海宝达环境科技有限公司 Small household garbage incinerator grate with waste heat utilization device

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