KR101574139B1

KR101574139B1 - Metal dust collector

Info

Publication number: KR101574139B1
Application number: KR1020150130899A
Authority: KR
Inventors: 배기은
Original assignee: 배기은
Priority date: 2015-09-16
Filing date: 2015-09-16
Publication date: 2015-12-03

Abstract

According to the present invention, a metallic dust collector includes: a housing including a suction duct connected to a dust collection hose recovering air including metallic dust, a discharging duct discharging the air after the metallic dust is removed, and a filter fixing unit; at least one filter unit which is fixed to the filter fixing unit and adsorbs the metallic dust drawn in with the air from the suction dust; a blower unit which provides a driving force to suck the air including the metallic dust through the suction dust, adsorb the metallic dust to the filter unit, and discharges the air without the metallic dust through the discharging dust; a compressed air spray unit which is arranged on a side of the housing and sprays compressed air into the filter unit to discard the metallic dust adsorbed to the filter unit; a dust recovering unit which is arranged on the lower part of the housing unit to recover the metallic dust falling to the lower part; a magnetic property applying unit which is arranged on a side of the filter unit, uses multiple electromagnets laminated together to generate a magnetic force sequentially according to the location in the vertical direction in order to forcefully attract the metallic dust, and uses changes in the magnetic force of the electromagnets according to the locations in the vertical direction and gravity in order to forcefully remove the attracted metallic dust in a dust recovering unit on the lower part; and a control unit which controls and displays the operation, halt, operation management, and malfunction alarms of each unit.

Description

METAL DUST COLLECTOR [0002]

The present invention relates to a dust collector for metallic dust, and more particularly, to dust collectors for metallic dust generated during metal working such as metal making, smelting, iron plate cutting, welding and grinding at industrial sites such as steelworks or shipyards To a dust collector of metallic dust used for smoothly collecting and treating metallic dust.

Industrial sites such as steel mills or shipyards that process various metals are inevitably discharging metallic dusts containing a large amount of metallic foreign substances, which requires efficient removal of metallic dusts to prevent environmental destruction and air pollution.

A mechanical dust collector is generally used to remove such metallic dust. The mechanical dust collector uses a ventilation fan provided in the dust collector to suck metallic dust generated from the inside of the work site with air through a suction duct to adsorb metallic dust to the filter and then to clean fresh air from which the metallic dust has been removed through the exhaust duct And discharged to the site. Meanwhile, in this process, the metallic dust adsorbed on the filter is collected in the dust box in the dust collector and then discharged separately.

However, in the case of metal dust which is relatively large in size and heavy in weight or sharp in the processing process, it flows into the suction duct from the outside of the workplace by the blowing fan and directly collides with the filter and is immediately adsorbed. There is a problem that the cartridge type filter made of a fabric material or a synthetic resin material is torn or broken. As a result, the filtering efficiency of the filter is lowered, the filter is replaced, the use of the dust collector is interrupted during the repair or replacement, so that the metal working operation is also interrupted. Also, due to frequent repair and replacement of the filter, And the overall operation efficiency of the industrial site is deteriorated.

On the other hand, a dust collecting apparatus using magnetic force for removing metallic dust has recently been developed and used.

As a representative example of the dust collecting device using such a magnetic force, there is disclosed a dust collecting device for metallic dust of Korean Patent Laid-Open Publication No. 10-2015-0056233 described in Patent Document 1 of the prior art document to be described later and Korean Patent Laid- -2015-0078329 " Cyclone dust collector using electromagnet ".

The metallic dust collecting device of Patent Document 1 is provided with a magnetic force filter portion having a plate shape and having an air passage hole penetrating through the surface thereof in the moving path of the metal dust to apply magnetic force to the metal dust flowing together with the compressed air, And is configured to discharge clean air after being adsorbed to the filter portion. However, in the case of Patent Document 1, as the metal dust continues to accumulate in the magnetic force filter portion over time, the adsorption efficiency and the air passage efficiency decrease, so that the operation of the dust collecting apparatus is stopped and the filter is replaced or shaken from time to time There is a problem in that it is inconvenient to use.

On the other hand, the cyclone dust collecting apparatus using the electromagnet of the above Patent Document 2 is provided to surround the electromagnet portion in the form of a band on the outer surface of the dust housing, so that the vortex of the metallic dust flowing into the dust housing is efficiently generated by using the magnetic force of the electromagnet So as to collect dust. However, Patent Document 2 has a problem that it is difficult to appropriately control the generation of vortices in the case of metallic dust of different weights. In addition, since the structure and structure of the mechanical dust collector are different from those of a mechanical dust collector of a predetermined size using general blowing fans and filters that do not require precise control of vortex generation, the Patent Document 2 can still employ the electromagnet portion in the mechanical dust collector In addition, if an electromagnet is installed outside the housing, the magnetic force does not effectively reach the interior of the housing having a predetermined size of space, so that dust collection of the metallic dust due to the magnetic force is not achieved.

KR 10-2015-0056233 A KR 10-2015-0078329 A

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, and to solve the above-mentioned problems, it is an object of the present invention to provide a filter of a flexible material which is relatively large in size, heavy in weight, So that it is possible to prevent the metallic dust from being damaged.

Another problem to be solved by the present invention is to solve the above problems and to provide a dust collecting apparatus and a dust collecting method, which are capable of performing filtering operation and pulsing operation of metallic dust without interruption of the dust collecting operation for maintenance of the filter, And the dust collecting efficiency can be continuously maintained excellent because the collecting operation can be continuously performed.

According to an aspect of the present invention, there is provided a dust collector for metallic dust, comprising a suction duct to which a dust collecting hose for recovering air containing metallic dust is connected, a discharge duct through which the air from which the metallic dust is removed, At least one filter portion fixed to the filter fixing portion and sucking metallic dust introduced from the suction duct together with the air, and a suction portion for sucking air containing the metallic dust into the suction duct, A blowing part for blowing air having the metallic dust removed after being adsorbed to the filter part to the outside through the exhaust duct, and a blowing part for blowing compressed air to the inside of the filter part, A compressed air spraying unit for spraying the metallic dust adsorbed on the filter unit, A dust collecting portion provided at a lower portion of the housing to collect the metallic dust falling downward; a dust collecting portion provided at one side of the filter portion for using the electromagnets in which a plurality of metallic dusts, which are introduced together with air through the suction duct, A magnetic force applying unit for forcibly attracting the metallic dust by vertically positional positions and forcibly adsorbing the metallic dust that has been adsorbed by using gravities and changes in magnetic force of the electromagnets for each vertical position, And a control unit for controlling and displaying the operation, stop, operation management, abnormal alarm, etc. of each of the units.

And an anti-collision portion disposed between the suction duct and the filter portion to prevent the metallic dust flowing together with the air from the suction duct from directly colliding with the filter portion.

The collision preventing portion may be vertically disposed between the suction duct and the filter portion with the upper portion thereof coupled to the filter fixing portion.

The collision preventing portion may be provided in a plate shape having a predetermined curvature so as to suppress the formation of excessive vortex caused by collision with the air containing the metallic dust flowing from the suction duct.

Wherein the magnetic force applying unit is fixed to the housing or the filter fixing unit by a fixing means and receives and protects a plurality of electromagnets stacked and arranged at a predetermined interval in a vertical direction through engagement with the front plate and the front plate, And an electromagnet member having a rear case having a wire passage hole through which electric wires for sequentially supplying electric current to the electromagnets are formed.

Wherein the plurality of electromagnets are disposed in a state in which a plurality of iron cores in the form of a bar or a round bar disposed in a horizontal direction wound on each coil are stacked and stacked in a vertical direction between the front plate and the rear case, A plurality of the wires for receiving a current supplied from an external power source through the ball may be coupled to the respective coils.

Wherein the controller applies a current to the plurality of electromagnets stacked in the vertical direction of the magnetic field applying unit by sequentially supplying electric current to the electromagnets in a vertical direction sequentially from top to bottom in a time- So that the metallic dust is forcedly adsorbed by the vertically corresponding positions of the front plate on which the magnetic force is formed and then forced to be moved to the dust collecting part by the gravity and the magnetic force change in the downward direction Can be controlled.

The plurality of electromagnets are divided into a plurality of sections, and a current is differentially supplied through the electric wires sequentially from top to bottom according to positions in a vertical direction in each of the sections, thereby forming a magnetic force, The force is applied to the front plate provided at the corresponding position of the electromagnet by the corresponding position, and then the force is forcefully transferred in the downward direction by the gravity and the magnetic force change in the downward direction.

The front plate and the rear case are preferably made of a metal material that generates a magnetic force at a corresponding position when current is supplied to the electromagnet and a magnetic force is lost when current is interrupted.

As described above, according to the dust collector of metallic dust according to the present invention, the metallic dust sucked into the suction duct is forcedly adsorbed by using the magnetic force generated by the electromagnet of the magnetic application portion, and then gravity and sequential magnetic force in the downward direction The metallic dust can be prevented from being damaged by the direct collision with the filter of the flexible material having a weak strength.

Further, according to the dust collector of the metallic dust according to the present invention, the collision preventing portion is further disposed between the suction duct and the filter, thereby preventing direct collision with the filter of the metallic dust sucked into the suction duct and smoothly guiding the dust to the magnetic application portion, There is an advantageous effect that the dust collecting operation of the dust collecting apparatus can be efficiently performed.

In addition, according to the dust collector of the metallic dust according to the present invention, the filtering operation of the metallic dust, the pulsing operation, the forced adsorption of the metallic dust by the sequential magnetic force application process using the principle of the electromagnetism, and the dust- There is an advantageous effect that the dust collecting efficiency can be kept excellent continuously.

1 and 2 are an external perspective view of a dust collector of a metallic dust according to an embodiment of the present invention,
3 and 4 are partial cutaway perspective views of a dust collector of metallic dust according to an embodiment of the present invention,
FIGS. 5 to 7 are an exploded perspective view, a perspective view and a perspective front view, respectively, of a magnetic field applying unit which is a sunken portion of a dust collector of a metallic dust according to an embodiment of the present invention;
8 to 12 are state diagrams illustrating a filtering process of a dust collector of a metallic dust according to an embodiment of the present invention,
13 is a state diagram illustrating an air pulsing process of a dust collector of a metallic dust according to an embodiment of the present invention,
FIGS. 14 to 17 are diagrams for explaining a method of controlling the position of the metallic dust according to the embodiment of the present invention, by sequentially applying magnetic force to the magnetic application part of the metallic dust collector according to the horizontal position, These are the state diagrams describing the sequential magnetic force application process.

Specific details for carrying out the invention are included in the detailed description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various other forms, and it should be understood that the present embodiment is intended to be illustrative only and is not intended to be exhaustive or to limit the invention to the precise form disclosed, To fully disclose the scope of the invention to a person skilled in the art, and the invention is only defined by the scope of the claims.

Like reference numerals refer to like elements throughout the specification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments described herein will be described in detail with reference to the accompanying drawings, a front view, and a state diagram.

Hereinafter, a dust collector of metallic dust according to an embodiment of the present invention and a method of operating the dust collector will be described with reference to FIGS. 1 to 17.

First, a dust collector of a metallic dust according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7. FIG.

1 and 2 are external perspective views of a metallic dust collector according to an embodiment of the present invention, FIGS. 3 and 4 are partial cutaway perspective views, respectively, of a dust collector of metallic dust according to an embodiment of the present invention, 5 to 7 are an exploded perspective view, a perspective view and a perspective front view, respectively, of a magnetic field applying unit which is a sunken portion of a dust collector of a metallic dust according to an embodiment of the present invention.

1 to 7, a dust collector 1 of metallic dust according to an embodiment of the present invention includes a housing 100, a filter unit 200 accommodated or coupled to the housing 100, A dust collecting unit 800 and a controller 900. The dust collecting unit 800 includes a dust collecting unit 300, a compressed air injecting unit 400, a collision preventing unit 600, a magnetic applying unit 700,

1 to 4, the housing 100 includes a suction duct 120, a discharge duct 130, a filter fixing unit 140, a lid 150, a cable storage hanger 160, a hopper (not shown) 165 and a flange 170.

The housing 100 accommodates the filter unit 200, the collision preventing unit 600, the magnetic applying unit 700, and the dust collecting unit 800 for the purpose of strength enhancement and fabrication. The housing 100 includes a compressed air injecting unit 400, And the lower portion accommodating the airflow portion 300 are connected to each other by a flange 170 which is provided with a gasket 172 for preventing leakage of air and metallic dust, Lt; / RTI > The housing 100 can be moved using a forklift or a lifting means or the like and can be manually moved to another place by a worker using the moving wheel 180 provided at the lower portion of the housing 100 without using a forklift or lifting means Movement and installation are possible.

The suction duct 120 is provided on one side of the upper portion of the housing 100 and a suction hose (not shown) is connected to the suction hole 122 to collect metallic dust together with air. One side of the suction duct 120 may be provided with an opening / closing valve that can selectively open / close the air containing the metallic dust flowing into the inlet 122 through the opening / closing operation, or selectively control the amount of the introduced air.

The discharge duct 130 is provided at a lower side of the housing 100 and includes a discharge port 132 through which the air from which the metallic dust is removed is discharged to the outside and a known discharge silencer 134 for reducing the noise of the discharged air .

The filter fixing portion 140 is provided at an inner upper portion of the housing 100. More specifically, the side surface of the housing 100 is formed in a shape of 'A' with one side thereof being spaced apart from a side of the housing 100 by a predetermined distance, and the upper portion thereof is connected to the upper side edge of the side surface,

The lid part 150 covers the upper part of the housing 100 and can be opened and closed so that the filter part 200 having the housing handle 154 for checking and replacing the filter part 200 installed inside the housing 100 A cover 152 is provided. The four corners of the lid part 150 are provided with hooks 156 for hooking the lifting cable so as to be able to be carried by the lifting means.

A plurality of housing handles 154 capable of being gripped by an operator are provided at a side of a center of the housing 100 and various cables for driving the dust collector 1 of the metallic dust through a cable storage hook 160 provided on the upper side of the housing 100 You can keep it on the floor. A hopper 165, which is a guide for collecting metallic dust falling into the dust collecting part 800, is provided at the inner center of the housing 100.

As shown in FIGS. 3 and 4, the filter unit 200 is fixedly installed at an upper portion by the filter fixing unit 140, and a part of the metallic dust contained in a large amount in the air sucked from the suction duct 120 (Adsorption) from the air. For this, the filter unit 200 includes a cartridge filter 210 made of a textile material or a synthetic resin, which is a cylindrical flexible material having a hollow portion formed therein to filter the air sucked from the suction duct 120 of the housing 100, And is fixed to the filter fixing portion 140 in the vertical direction of the housing 100 by using the filter fixing member 230 in a form covered with the outer side of the filter back cage 220. Of course, the filter unit 200 may be provided in other known configurations and shapes within a range that does not cause a collision with another configuration of the present embodiment.

The blow-in portion 300 is fixedly installed inside the housing 100. The blowing unit 300 forcibly introduces external air containing metal dust into the suction duct 120 and provides a driving force for discharging the air filtered by the filter unit 200 back into the exhaust duct 130 do. To this end, the blowing fan 300 includes a blowing fan 310 and a blowing motor 320. The blowing fan 310 is connected to the exhaust duct 130 through the outlet 314 after the air having flowed through the suction duct 120 and the metallic dust is removed by the filter 200 into the inlet 312, .

The blowing motor 320 drives the blowing fan 310 by a power source supplied from the outside.

3 and 4, the compressed air injecting unit 400 injects compressed air into the filter unit 200 to filter the cartridge filter 210, And the metallic dust that has been adsorbed is removed by strong vibration and dropped to the dust box 810 of the dust collecting unit 800 provided at the lower part. To this end, the compressed air spraying unit 400 includes an air head set 410, a nozzle 430, a compressed air spraying pipe 440, and a pulse timer 450.

The air head set 410 is horizontally installed on one side of the housing 140 and forms the body of the compressed air injector 400.

Although not shown in the drawing, the compressed air spraying unit 400 is provided with a pulse valve 450 for supplying compressed air from the outside to the compressed air spraying pipe 440 through the nozzle 430 by the operation of the pulse timer 450, As shown in FIG.

When the pulse valve opens the nozzle 430 periodically by the operation of the pulse timer 450, the compressed air supplied to the air head set 410 through the nozzle 430 flows into the compressed air injection port 440 of the compressed air injection pipe 440, And is quickly supplied to the inside of the cartridge filter 210 through the opening 442. As a result, the cartridge filter 210 vibrates strongly and the metallic dust adsorbed on the cartridge filter 210 falls off and falls freely and accumulates in the dust chamber 810. Therefore, it is not necessary to replace the cartridge filter 210 separately, and there is no hindrance to the filtering operation. The continuous pulse timer 450 can be automatically or manually controlled by the control unit 100 described later.

The collision preventing portion 600 is vertically disposed between the suction duct 120 and the filter portion 200 with the upper portion thereof coupled to the filter fixing portion 140. The collision preventing portion 600 is formed of a metal or synthetic resin having a predetermined strength and is formed in a plate shape having a predetermined curvature so as to prevent the formation of an excessive eddy current due to a strong collision with the air containing the introduced metallic dust Respectively. The collision preventing portion 600 prevents the metallic dust that flows into the cartridge filter 210 from entering the air filter 120 at a high speed through the suction duct 120 directly to prevent the cartridge filter 210 from being torn or broken, And serves to guide the application portion 700 to allow most of the air including the metallic dust to flow naturally.

The magnetic force applying unit 700 is provided at one side of the filter unit 700 in a vertical direction. The magnetic force applying unit 700 sequentially applies the metallic dust contained in the air guided by the collision preventing unit 600, And the collected metallic dust is collected by forcibly transporting the adsorbed metallic dust to the downward portion of the dust collector 810 using the magnetic force of the electromagnet by gravity and vertical position after the magnetic attraction is formed. To this end, the magnetic-field applying unit 700 includes an electromagnet member 710 and a fixing member 720 as shown in Figs. 4 and 5-7.

The electromagnet member 710 includes a front plate 712, a rear case 714, an electromagnet 716, and a wire 718.

The front plate 712 is formed of STS 304 or the like which is a metal material capable of dissipating the magnetic force when a current is supplied through the electric wire 718 to the electromagnet 716 and the electric current is interrupted. The metallic dust is forced to be adsorbed on the metal surface.

The rear case 714 is also made of a metal material such as STS 304. The rear case 714 accommodates and protects a plurality of electromagnets 716 stacked and arranged at predetermined intervals in the vertical direction through engagement with the front plate 712, A fixing part 720 for coupling with the filter fixing part 140 is coupled by a known coupling method such as a coupling method and the like, and the electric wire 718 for supplying electric current to the plurality of electromagnets 716 A through hole 718 is formed.

The plurality of electromagnets 716 are arranged such that a plurality of iron cores 716a in the form of bars or rods arranged in the horizontal direction wound on respective coils 716b are disposed between the front plate 712 and the rear case 714, And a plurality of electric wires 718 for receiving a current supplied from an external power source through a wire passage hole 718 are coupled to the respective coils 716b.

Accordingly, when the control unit 900 sequentially supplies the electric current to the electromagnets 716 arranged vertically in the vertical direction by sequentially supplying the electric current through the electric wires 718 from top to bottom in the vertical direction, the front plate 712, The metallic dust is forcedly adsorbed by the horizontal position of the front plate 712 on which the magnetic force is formed, and then the metallic dust is forcedly adsorbed by the gravity and the magnetic force in the downward direction, The dust can be forcedly conveyed to the dust box 810. A detailed description thereof will be made in a method of operating the dust collector 1 of the metallic dust according to an embodiment of the present invention to be described later.

The dust collecting unit 800 is provided below the filter unit 200, the impact blocking member 600 and the magnetic applying unit 700 and performs a filtering operation, a pulsing operation, and a sequential magnetic force applying process of the magnetic applying unit 700 (810) collects metallic dust recovered by the transfer operation and discharges the metallic dust to the outside. The dust collecting unit 800 includes a dust box 810 and a dust box 810 which are provided in a box shape having an open upper part corresponding to the hopper 165 and capable of slidably protruding from one side of the housing 100 in a horizontal direction, And a side cover 820 coupled to the fixing member 822 at one side thereof and to which a cover knob 824 is attached.

The operator removes the dust box 810 from the housing 100 by pulling the cover knob 824 attached to the side cover 820 to remove the metallic dust from the dust box 810, (810) may be accommodated in the original position inside the housing (100). In contrast to this embodiment, the cover knob 824 can be directly coupled to one side of the dust box 810, in which case the side cover 820 and the fixing member 822 can be omitted.

2 and 7, the control unit 900 includes the filter unit 200, the blowing unit 300, the compressed air injecting unit 400, the collision avoidance unit 300, (Not shown) such as a differential pressure measuring instrument, a limit switch, or the like is installed in each of the dust collecting section 600, dust collecting section 800, etc., and various signals inputted from the measuring sensor are processed to grasp the current state of each section, Operation control, operation abnormality, and the like. The controller 100 may include an on / off switch, an emergency stop switch, a reset switch, and the like, and may further include a display unit such as a power indicator, an alarm indicator, or an operation indicator. Therefore, by processing the various signals intensively from the measuring sensors provided in the respective units through the control unit 900, it is possible to perform all the operations necessary for the operation of the dust collector 1 of the metallic dust such as the operation, stop, And controls.

For example, when the weight information of the metallic dust input from the measuring sensor provided in the dust collecting unit 800 exceeds a predetermined reference value, the control unit 900 activates an alarm indicator provided on the display unit to emit dust to the operator 810 And stops the operation of the dust collector 1 of the metallic dust automatically when the weight information of the metallic dust exceeds the downtime reference value.

The control unit 900 sequentially supplies electric current to the plurality of electromagnets 716 stacked in the vertical direction of the magnetic field applying unit 700 through the electric wires 718 sequentially from top to bottom in the vertical direction, Magnetic force is sequentially formed so that the magnetic force is sequentially formed sequentially from the top to the bottom according to the vertical position of the front plate 712. The control unit 900 forcibly adsorbs the metallic dust by the vertical position of the front plate 712 on which the magnetic force is formed and then the metallic dust is dusted by the gravity and the magnetic force change in the downward direction, .

Hereinafter, a method of collecting metallic dust in the dust collector 1 of the metallic dust according to an embodiment of the present invention will be described in detail with reference to FIGS. 8 to 17. FIG.

FIGS. 8 to 12 are respectively a state diagram illustrating the filtering process of the dust collector of the metallic dust according to an embodiment of the present invention, and FIG. 13 is a flowchart illustrating the air pulsing process of the dust collector of the metallic dust according to an embodiment of the present invention FIGS. 14 to 17 illustrate a state in which the magnetic force is sequentially applied to the magnetic application portion of the dust collector of the metallic dust according to the embodiment of the present invention, Which is a state in which the magnetic field is applied in the horizontal direction.

Prior to the description, the filtering process, the pulsing process, and the sequential magnetic force applying process of the metallic dust-collecting operation of the dust collector 10 of the metallic dust according to the embodiment of the present invention are performed simultaneously without mutual interference, For the sake of convenience, it should be clarified that each process is explained separately.

Referring to FIGS. 8 to 12, the filtering process of the metallic dust using the dust collector of metallic dust according to an embodiment of the present invention will be described. The air suction force generated by the driving of the blowing unit 300 acts on the suction duct 120 connected to the dust collecting hose (not shown). Thus, the metallic dust is sucked (In) into the suction port 122 of the suction duct 120 together with the air as shown by the alternate long and two short dashes lines in FIGS. 8 to 12. The metallic dust sucked in with the air approaches the filter 210 while moving along with the air along the side of the cartridge filter 210 without directly colliding with the cartridge filter 210 directly by the collision preventing portion 600 The dust is removed and the dust is discharged to the discharge port 132 of the discharge duct 130 through the inflow portion 312 and the discharge portion 314 of the discharge portion 300. [ .

Next, referring to FIG. 13, a pulsing process of the filtered metallic dust in the cartridge filter 210 using the dust collector 1 of metallic dust according to an embodiment of the present invention will be described.

When the compressed air injecting unit 400 periodically operated by the pulse timer 450 simultaneously injects the compressed air through the compressed air injection port 412 into the cartridge filter 210 every predetermined time, The metallic dust adsorbed on the cartridge filter 210 is freely dropped and stored in the dust box 810 of the lower dust collector 800 as shown by the two-dot chain line arrow in FIG. Thereby preventing the filtering efficiency of the filter unit 200 from being lowered.

Next, the sequential magnetic force application process of the magnetic applicator 700 using the dust collector 1 of metallic dust according to one embodiment of the present invention will be described with reference to FIGS. 14 to 17. FIG.

14, when the controller 900 applies current only to each of the upper electromagnets 716 (1) of the electromagnets 716 divided into three of the electromagnets 716 stacked in the vertical direction as shown in FIG. 14, The collision preventing part 600 does not directly collide with the filter part 200, and the metallic dust which is bypassed and introduced together with the air is forcedly attracted by the magnetic force.

15, the controller 900 applies current only to the middle electromagnet 716 (2) of each electromagnet 716 partitioned by three of the electromagnets 716 stacked in the vertical direction as shown in FIG. 15 ON), the metallic dust forcedly adsorbed on the corresponding front plate 712 of each of the upper electromagnets 716 (1) is subjected to gravity and a downward magnetic force change so that the corresponding front surface of each middle electromagnet 716 (1) And moves downwardly to the plate 712 as shown by an arrow.

16, the control unit 900 again applies current only to the lower electromagnet 716 (3) of each electromagnet 716 partitioned by three of the electromagnets 716 stacked in the vertical direction as shown in FIG. The metallic dust forcedly adsorbed on the corresponding front face plate 712 of each intermediate electromagnet 716 (2) is subjected to gravity and a downward magnetic force change to the corresponding front face plate of each lower electromagnet 716 (3) 712) as shown by the arrows.

17, the controller 900 controls the electric currents only to the upper electromagnets 716 (1) of the respective electromagnets 716 partitioned into three of the electromagnets 716 stacked in the vertical direction as shown in FIG. The metallic dust forcedly adsorbed on the corresponding front face plate 712 of each lower electromagnet 716 (3) is subjected to gravity and corresponding fall of each upper electromagnet 716 (1) The metallic dust which has been strongly adsorbed on the corresponding front plate 712 of the lower electromagnet 716 (3) of the lowest section is attracted to the corresponding front plate 712 by the downward movement as shown by the arrow, And is collected by free fall into the dust chamber 810 due to gravity.

If the processes of FIGS. 14 to 17 are sequentially performed by the control unit 900 according to time, the metallic dust that may cause damage to the cartridge filter 210 is discharged to the magnetic application unit 700 can be collected into the dust box 810 through the forced adsorption and the vertical downward forced forced transfer.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And falls within the scope of the invention.

The dust collector of metallic dust according to the present invention can prevent damage of filters in mechanical dust collectors used in steel mills and shipyards where metallic dust is frequently generated, efficiently remove metallic dust, and is suitable for various dust collector industries It can be widely used and usefully used.

1: dust collector 100: housing
120: Suction duct 122: Suction port
130: exhaust duct 132:
134: Discharge muffler 140: Filter fixing section
150: lid 152: filter part check lid
154: housing handle 156:
160: Cable storage rack 165: Hopper
170: flange
172: gasket 180: moving wheel
200: filter unit 210: cartridge filter
220: filter bag cage 230: filter fixing member
300:
310: blower fan 312: inlet
314: outlet part 320: blowing motor
400: Compressed air injection part 410: Air head set
430: nozzle 440: compressed air injection pipe
442: Compressed air injection nozzle 450: Pulse timer
600:
700: magnetic field applying unit 710: electromagnet member
712: front plate 714: rear case
716: electromagnet 716a: iron core
716b: Coil 718: Wire through hole
718: electric wire 720:
800: dust collecting part 810: dust box
820: side cover 822: fixing member
824: cover knob 900:

Claims

A housing having a suction duct to which a dust collecting hose for recovering air containing metallic dust is connected, a discharge duct through which the air from which the metallic dust is removed, and a filter fixing unit,
At least one filter portion fixed to the filter fixing portion and sucking metallic dust introduced from the suction duct together with the air,
A blowing portion for sucking air containing the metallic dust into the suction duct to adsorb the metallic dust to the filter portion and then providing a driving force for discharging the air from which the metallic dust has been removed to the outside through the exhaust duct,
A compressed air spraying unit installed at one side of the housing for spraying compressed air into the filter unit to remove the metallic dust adsorbed to the filter unit,
A dust collecting unit installed at a lower portion of the housing to collect the metallic dust falling downward,
A plurality of electromagnets stacked on the metallic dust flowing through the suction duct together with the air are used to form a magnetic force sequentially in the vertical direction by the electromagnets and then forcedly adsorbed by the electromagnets, A magnetic force applying unit for forcibly transferring the metallic dust adsorbed by the electromagnet to a downward direction with the dust collecting unit,
A control unit for controlling and displaying the operation, stop, operation management,
Containing
Dust collector of metallic dust

The method of claim 1,
And a filter unit disposed between the suction duct and the filter unit to prevent the metallic dust, which is introduced together with air from the suction duct, from directly colliding with the filter unit
Collision preventing portion
Further comprising
Dust collector of metallic dust.

3. The method of claim 2,
The anti-
And an upper portion is vertically disposed between the suction duct and the filter portion while being coupled to the filter fixing portion
Dust collector of metallic dust.

3. The method of claim 2,
The anti-
And is provided in a plate shape having a predetermined curvature so as to suppress formation of excessive vortex caused by collision with air containing the metallic dust flowing from the suction duct
Dust collector of metallic dust.

The method of claim 1,
The magnetic-
And fixed to the housing or the filter fixing portion by fixing means,
A plurality of electromagnets stacked and arranged at predetermined intervals in a vertical direction through engagement with the front plate and the front plate, and a wire through hole through which electric wires for sequentially supplying current are formed is formed Having a rear case
The electromagnet
Dust collector of metallic dust.

The method of claim 5,
The plurality of electromagnets
A plurality of iron cores in the form of a bar or a round bar arranged in a horizontal direction wound on each of the coils are stacked and received in a vertical direction between the front plate and the rear case, And a plurality of said wires for receiving a current supplied from said coil
Dust collector of metallic dust.

The method of claim 5,
The control unit
A plurality of electromagnets stacked in a vertical direction of the magnetic field applying unit are alternately supplied with electric current through the electric wires sequentially from top to bottom in each vertical direction to form a magnetic force, So that the metallic dust is forcedly adsorbed by the vertically corresponding positions of the front plate on which the magnetic force is formed and then forced to move to the dust collecting unit by the gravity and the magnetic force change in the downward direction
Dust collector of metallic dust.

8. The method of claim 7,
The plurality of electromagnets
A plurality of compartments divided into a plurality of compartments, and each of the compartments is provided with a magnetic force by sequentially supplying currents through the electric wires sequentially from top to bottom according to positions in the vertical direction, so that the metallic dust can correspond to the electromagnets The force is applied to the front plate provided at a position corresponding to the corresponding position, and then the force is forcibly transferred in the downward direction by the gravitational force and the magnetic force change in the downward direction
Dust collector of metallic dust.

The method of claim 5,
The front plate and the rear case
A magnetic force is formed at a corresponding position when a current is supplied to the electromagnet, and a magnetic force is generated when a current is supplied,
Dust collector of metallic dust.