KR20130065999A - A magnetic filter for gathering oxidized steel dust at chimney - Google Patents
A magnetic filter for gathering oxidized steel dust at chimney Download PDFInfo
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- stack
- iron oxide
- boiler
- filter
- magnet
- Prior art date
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Classifications
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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
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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
- 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
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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
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/04—Traps
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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
- 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
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
In this way, toxic substances such as heavy metals generated in the
However, in the prior art as described above, in order to use the magnet to prevent free discharge of toxic substances, the
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
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
In another embodiment of the present invention, the
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
In FIG. 2, the flat section of the stack 5 is shown as an embodiment. The shape of the
The
Two support layers may be coupled to one
The
However, in the case of the external magnetic filter described below, the
The
In addition, the
As described above, the
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
The gas
<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
In addition to the above differences, all configurations and functions described above with respect to the built-in magnetic filter structure, the
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
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
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
4 cradle 5
7: electromagnet 8: connection part 11: permanent magnet housing
12: permanent magnet
Claims (9)
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 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 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 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 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 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 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 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 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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020110132646A KR20130065999A (en) | 2011-12-12 | 2011-12-12 | A magnetic filter for gathering oxidized steel dust at chimney |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020110132646A KR20130065999A (en) | 2011-12-12 | 2011-12-12 | A magnetic filter for gathering oxidized steel dust at chimney |
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KR20130065999A true KR20130065999A (en) | 2013-06-20 |
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KR1020110132646A KR20130065999A (en) | 2011-12-12 | 2011-12-12 | A magnetic filter for gathering oxidized steel dust at chimney |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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2011
- 2011-12-12 KR KR1020110132646A patent/KR20130065999A/en not_active Application Discontinuation
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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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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