KR101575174B1 - apparatus for dust collector of cell injection and product cooling line in molding process - Google Patents

Abstract

The present invention provides a dust collecting apparatus including a housing having a dust collecting space formed therein and a through hole formed in an upper surface thereof so as to easily remove dust and foreign matter adhered to the filter bag to improve filtration efficiency. A dust collecting part extending downward along a rim of the through hole, the dust collecting part including a filter frame having a vent hole formed along an outer periphery thereof and a filter bag surrounding the outer periphery of the filter frame; An exhaust duct portion communicating with the through hole on the upper portion of the housing; An intake flow path communicating with the lower portion of the housing and sucking a gas to be filtered containing water and dust particles generated in a mold cell injection and cooling line; Dust supplying means for joining one side of the intake passage to supply dry dust to the gas to be filtered so that the outer surface of the powdery dust particles is coated; And a pulse exhausting part provided in the exhaust duct part for selectively ejecting the compressed air so that the water and oil dust particles collected on the filter bag are coated on the outer surface by the dry dust to be desorbed, Thereby providing a line dust collecting apparatus.

Description

[0001] The present invention relates to a mold cell injecting and cooling line dust collecting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting apparatus, and more particularly, to a mold cell injecting and cooling line dust collecting apparatus which easily removes dust and foreign matter adhered to a filter bag to improve filtration efficiency.

Generally, a dust collector is installed in a workplace such as a cement manufacturing process or a metal smelting process in which a large amount of dust is generated, purifies the gas to be filtered containing dust such as dust or foreign matter, and discharges the clean gas to the outside. It is a device to prevent air pollution caused by.

In this case, the dust collector includes a housing formed with a sealed space from the outside, an inlet for communicating with a work site at one side of the housing to suck the gas to be filtered, a filter for filtering dust of the gas to be filtered, And a discharge port for discharging clean gas filtered by the filter bag.

Here, the filter bag may be made of nonwoven fabric or ceramic. A spray nozzle is disposed inside the filter bag, and the spray nozzle is connected to a pulse pump or the like to spray compressed air at a predetermined period or intermittently. At this time, the filter bag is instantaneously expanded and vibrated by the compressed air injected, so that dust adhering to the outer surface can be desorbed.

However, in the past, when the filter bag contains oil or moisture such as oil mist or the like and the dust having high tackiness is trapped, the filter bag can not be smoothly separated from the filter bag due to the compressed air. As the filtration progresses continuously, The surface was surrounded by dust and could not perform the filtration function properly, and frequent replacement of the filter bag caused discomfort.

Thus, although a technology for spraying a separate catalyst onto the filter bag has been devised, there is a problem that additional cost is incurred because a new catalyst must be purchased every time since it is impossible to reuse the consumed catalyst.

Korean Patent Publication No. 10-1987-0005677

The object of the present invention is to provide a mold cell injection and cooling line dust collector capable of easily removing dust and foreign matter adhered to a filter bag and improving filtration efficiency.

According to an aspect of the present invention, there is provided a dust collecting apparatus including: a housing having a dust collecting space formed on an inner side thereof and a through hole formed on an upper surface thereof; A dust collecting part extending downward along a rim of the through hole, the dust collecting part including a filter frame having a vent hole formed along an outer periphery thereof and a filter bag surrounding the outer periphery of the filter frame; An exhaust duct portion communicating with the through hole on the upper portion of the housing; An intake flow path communicating with the lower portion of the housing and sucking a gas to be filtered containing high-viscosity water-containing dust particles containing oil and moisture generated in a mold cell injection and cooling line; Dust mixing means for joining with one side of the intake passage so as to coat the outer surface of the water-based dust particles to supply dry dust of low viscosity to the gas to be filtered; And a pulse exhausting part provided in the exhaust duct part, the pulse exhausting part being selectively opened so that the water-containing dust particles collected on the filter bag are desorbed and sprayed with compressed air, the outer surface being coated by the dry dust, And a spiral mixing guide portion is formed on the inner circumferential surface of the intake flow path in which the dust supplying means is merged so as to be mixed with the powdery dust particles.

Here, the dust supplying means may include a confluent pipe communicating with one side of the intake passage, a dust bag provided above the confluent pipe and storing the dry dust collected in the space to be filtered where the gas to be filtered is generated, And a dry dust supply adjusting means connected to one side of the merging pipe for adjusting the supply amount of the dry dust discharged to the lower portion of the dust bag.

At this time, the dry dust supply controlling means includes a rotor portion having a plurality of blades formed at predetermined intervals along the circumferential direction, a rotation driving portion for rotating the rotor portion, and a plurality of compartment spaces formed by the blades, And a cylindrical case formed corresponding to the rotation locus, wherein the supply amount of the dry dust is controlled according to the rotation speed of the rotor part.

The dust bag is coupled to the inside of the support frame, and the support frame includes a lower frame for aligning the dry dust supply control means with the lower part of the dust bag, And an upper frame for supporting the dust bag.

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According to the above solution, the mold cell injection and cooling line dust collector according to the present invention provides the following effects.

First, since the dust particles in the filtrate gas are coated with the dry dust supplied by the dust supply means, the dust particles are low in tackiness, so that the filter bag can be smoothly separated from the filter bag, It is possible to prevent the damage due to the increase of the pressure of the compressed air and to reduce the ejection pressure and the number of ejection times of the compressed air for desorption, so that the durability of the product can be improved.

Second, since the dry dust is not provided as a separate catalyst but is provided with various dusts in the workplace that can be easily obtained through an environmental maintenance process such as cleaning, the maintenance cost can be reduced and the economical efficiency of the product can be improved .

Thirdly, the dry dust supply adjusting means controls the supply amount of the dry dust by controlling the interlocking depending on the content of the dust particles in the filtrate measured by the sensing means, so that the amount of the airflow reduced Or the filter bag deterioration due to the lack of dry dust can be prevented and the filtration efficiency of the product can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view illustrating a mold cell injection and cooling line dust collector according to an embodiment of the present invention; FIG.
2 is a perspective view illustrating a dust supply unit according to an embodiment of the present invention;
3 is a side view of a dust supply means according to an embodiment of the present invention;
FIG. 4 is an exemplary view showing a dry dust supply adjusting means according to an embodiment of the present invention; FIG.
5 is a view illustrating an example of mixing the dry dust and the water dust particles in the intake passage according to an embodiment of the present invention.

Hereinafter, a mold cell injection and cooling line dust collecting apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary view illustrating a mold cell injection and cooling line dust collecting apparatus according to an embodiment of the present invention.

1, a mold cell injection and cooling line dust collecting apparatus 100 according to an embodiment of the present invention includes a housing 10, a dust collecting unit 30, an exhaust duct unit 20, a pulse discharging unit 40, An intake flow path 50, and a dust supply means 70.

Here, the housing 10 has a dust-collecting space formed therein, and a through-hole 13 is formed in the upper surface thereof. The dust collecting space may be filled with a gas b to be filtered which is sucked into the suction duct 50. The gas b to be filtered which is filled in the dust collecting space passes through the through hole 13, (20) and can be discharged to the outside.

In this case, it is preferable that the gas b to be filtrated is understood to mean gas or air containing various kinds of water and dust generated in the work place where injection molding is performed. A plurality of the through holes 13 may be formed and each through hole 13 may be provided with a dust collecting portion 30 for filtering the gas b to be filtered.

Of course, a guide plate having a spiral shape upward along the circumferential direction may be provided on the inner circumferential surface of the housing 10. That is, the gas b to be filtered flows into the dust collecting space to form a spiral airflow upward along the guide plate, and passes through the through-hole 13 to the exhaust duct portion 20).

Accordingly, not only the contact area of the gas b to be filtered with the filter bag 32 when passing through the dust collecting part 30 but also the entire surface of the filter bag 32, So that the filtration efficiency can be improved.

In addition, a dust outlet 11 through which the dust removed from the filter bag 32 is discharged may be provided at a lower end of the housing 10. The dust outlet (11) may be provided with a dust transfer unit (12) for transferring the dust to be discharged.

The dust collecting part 30 includes a filter frame 31 extending downward along the rim of the through hole 13 and having a vent hole formed along the outer periphery thereof and a filter bag 32 surrounding the outer periphery of the filter frame 31 ).

In detail, the filter frame 31 may be formed in a cylindrical shape extending downward along the through-hole 13 to form a skeleton for supporting the inside of the filter bag 32.

The filter frame 31 is formed of metal or synthetic resin having a predetermined rigidity and is fixed to the filter bag 32 in a fixed state without flowing in the flow of the gas b to be filtered flowing in the housing 10. [ ). ≪ / RTI >

A plurality of ventilation holes may be formed on the surface of the filter frame 31. That is, the gas b to be filtered, which flows into the dust collecting space, can pass through the through holes of the filter frame 31 and flow to the exhaust duct portion 20 through the through holes 13.

At this time, the gas b to be filtered may be filtered by the filter bag 32 surrounding the surface of the filter frame 31. Here, the filter bag 32 may be formed of a nonwoven fabric, a thin paper, ceramic, or the like to collect dust in the inner fiber layer or adsorb dust on the surface layer, thereby filtering the gas b to be filtered.

The exhaust duct portion 20 is provided on the upper portion of the housing 10 so as to communicate with the through-hole 13. At this time, an exhaust duct 60 is provided at one side of the exhaust duct unit 20, and a gas b to be filtered, which is filtered by the filter bag 32 through the exhaust duct 60, have.

Of course, a discharge fan may be provided at one side of the exhaust channel 60 to form a gas or an air flow to suck the gas to be filtered in the work area and discharge the filtered gas.

Meanwhile, the intake passage 50 communicates with the lower portion of the housing 10, and sucks the gas to be filtered containing the water-containing dust particles generated in the mold cell injection and cooling line.

Here, the mold refers to a mold used in an injection molding process, and the mold cell injection line refers to a process for injecting molten metal or plasticized synthetic resin into a cell formed inside a mold, Or the step of cooling the synthetic resin to cure the molded article molded into the shape of the cell.

At this time, soot and water vapor are generated during the process of melting the metal or the synthetic resin by heating and cooling the metal or synthetic resin injected into the cell by curing, and the mold release agent and the lubricant used in the mold cell, And water-repellent particles (c) having high adhesiveness by evaporation may be contained in the gas to be filtered.

Of course, the dust collecting apparatus 100 may be installed in addition to the mold cell injection and cooling line so as to filter air in a space in which a large amount of water-containing dust particles (c) containing sticky oil or moisture is contained.

A suction fan may be provided at one side of the intake passage 50. The suction fan sucks a gas to be filtered in the mold cell injection and cooling line in which one end of the intake passage 50 is disposed, And can be sent to the dust collecting space communicated with the intake flow path (50).

Meanwhile, the dust supplying means 70 is joined to one side of the intake passage 50 so as to coat the outer surface of the powdery dust particles c, and supplies dry dust d to the gas to be filtered.

In detail, the dust supplying means 70 supplies the dry dust d to one side of the intake flow path 50, and the wet dust particles c in the gas to be filtered are mixed with the supplied dry dust d Thereby forming mixed particles. At this time, the mixed particles are formed by coating the surface of the water-based dust particles (c) having high tackiness with the dry dust (d) having a low tackiness, and have a low tackiness.

Accordingly, instead of collecting the high-moisture-content dust particles (c) on the surface of the filter bag (32) or on the inner fiber layer, larger and heavier mixed particles having adhesiveness lower than that of the water- Can be captured. Therefore, when the compressed air (a) is blown out by the pulse exhausting part (40), the filter bag can be desorbed more smoothly.

As a result of installing the dust supplying means 70 according to the embodiment of the present invention, it was confirmed that the differential pressure of the filter bag 32 dropped from about 270 mmAq to about 100 mmAq. Such reduction of the differential pressure reduces the pressure applied to the filter bag 32, thereby preventing damage to the fiber caused by sagging or tearing of the filter, thereby improving the durability of the product.

In addition, since the mixed particles can be smoothly separated from the filter bag even if the pressure of the compressed air ejected from the injection nozzle 41 is lowered or the number of times of ejection is decreased due to the low adhesive property and the increased weight, The productivity of the product can be improved.

Further, since the volume of each particle increases as the powdery dust particles (c) and the dry dust (d) are combined, the filtration efficiency by the filter bag 32 can be improved.

Meanwhile, the pulse exhausting part 40 is provided in the exhaust duct part 20, and the water-wettable dust particles c coated on the outer surface by the dry dust d and collected in the filter bag 32 And is selectively opened to discharge compressed air.

Here, the pulse exhausting unit 40 may include an injection nozzle 41, a pulse valve 42, and a compressed air storage tank 43. Specifically, the pulse exhausting part 40 is disposed in the interior of the through-hole 13 to communicate with the filter bag 32 through the injection nozzle 41, which is opened and closed at a predetermined time interval, ).

As the process of collecting dust on the surface of the filter bag 32 or the inner fiber layer proceeds, the amount of collected dust increases with time, and the dust accumulates in the filter bag 32, The differential pressure between the inside and the outside of the filter bag 32 increases and the pressure applied to the filter bag 32 increases.

At this time, the injection nozzle 41 having a smaller diameter than the diameter of the through-hole 13 is disposed on the center side of the through-hole 13 and the filter bag 32 is instantaneously sprayed with compressed air (a) The filter bag 32 can be inflated instantaneously, and the filter bag 32 may be vibrated together with the expansion, so that the filter bag 32 may be impacted.

Here, the filtrate refers to a mixed particle in which low-tacky dry dust (d) is coated on the outer surface of the highly sticky water-repellent dust particles (c). Further, since the mixed particles are already adhered to the high-tackiness portion, they have low tackiness and can be easily removed by the impact.

Here, the predetermined time interval may be set to a predetermined fixed value such as 30 seconds, 1 minute, or the like. Of course, the dust collecting apparatus 100 may further include a pressure sensor for measuring a differential pressure between the inside and the outside of the filter bag 32, and the time interval may be controlled so as to correspond to the measured differential pressure It is possible. At this time, it is preferable that the time interval is controlled to be faster as the differential pressure is higher.

The compressed air (a) is supplied to the compressed air storage tank 43 connected to one side of the pulse valve 42, and the compressed air Lt; / RTI >

FIG. 2 is a perspective view showing a dust supply unit according to an embodiment of the present invention, FIG. 3 is a side view showing a dust supply unit according to an embodiment of the present invention, FIG. 4 is a cross- FIG. 5 is a view illustrating an example of a process of mixing dry dust and wet dust particles in an intake passage according to an embodiment of the present invention. Referring to FIG.

2 to 5, the dust supply unit 70 preferably includes a confluent pipe 71, a dust bag 72, and a dry dust supply adjusting unit 73. Herein, the merging pipe 71 communicates with one side of the intake passage 50, and the dry dust d in the dust bag 72 can be supplied to the gas to be filtered through the merging pipe 71 have.

Preferably, the dust bag 72 is disposed above the confluent pipe 71, and the dry dust d collected in the space to be filtered where the gas to be filtered is generated is stored.

Here, the space to be filtered refers to a worksite where a mold cell injection and cooling line is formed, and various kinds of dust such as fine metal, synthetic resin powder, and sand used in various processes may exist on the floor of the workplace.

At this time, various dusts on the floor of the workplace can be collected by a vacuum cleaner or a broom to be used as the dry dust (d). As described above, since the dry dust (d) is not provided as a separate catalyst, it is provided with various dusts in a workplace that can be easily obtained, so that the maintenance cost can be reduced and the economical efficiency of the product can be improved.

The drying dust supply control means 73 is connected to one side of the confluent pipe 71 and regulates the supply amount of the dry dust d discharged to the lower portion of the dust bag 72.

Here, sensing means may be provided at the end of the intake passage 50 to measure the content of the dust particles in the filtered gas to be inhaled. The sensing means may be a sensor for measuring the water content of the gas to be filtered. At this time, it can be determined that the higher the water content of the gas to be filtered is, the higher the content of the powdery dust particles is.

Preferably, the dry dust supply adjusting means 73 is interlocked to adjust the supply amount of the dry dust corresponding to the content of the dust particles of the water content in the gas to be filtered measured by the sensing means.

That is, the dry dust supply adjusting means 73 can adjust the amount of dry dust supplied to the merging pipe according to the driving amount. At this time, the dry dust supply adjusting means 73 may be controlled by a control unit including a microcomputer. The control unit may control the driving amount of the dry dust supply adjusting unit 73 to be interlocked with the content of the water / oil dust particles measured by the sensing unit.

At this time, the driving amount may mean the amount of rotation in the case of the rotational driving type in which the dry dust supply adjusting means 73 rotates to transfer the dry dust. Of course, the dry dust supplying means 73 may be provided in a manner of adjusting the size of the open hole through which the dry dust is discharged, or in a manner of adjusting the opening time of the open hole. In this case, It can mean the opening time of the open ball.

More specifically, the control unit sends a signal for increasing the driving amount to supply a large amount of the dry dust when the content of the measured water / oil dust particles is high, and decreases the drive amount when the content of the water / So that the dry dust is supplied less.

Accordingly, the filtration efficiency of the product can be improved by preventing the filter bag from being deteriorated due to the decrease in the amount of airflow in the intake passage due to excessive input of the dry dust or the lack of dry dust.

In detail, when the dry dust is overloaded, the gas to be filtered becomes turbid due to the dry dust remaining after being combined with the dust particles of the oil water, and since the filtered gas is filtered with the filter bag, Can be reduced.

When the dry dust is insufficient, the water-dispersed dust particles remaining uncoated by the dry dust adhere to the filter bag. Such dust particles can not easily be desorbed by the compressed air and remain in the filter bag to reduce the filtration area, .

Of course, the supply amount of the dry dust (d) may be set corresponding to the flow rate of the gas to be filtered flowing into the intake passage (50). In this case, a flow rate sensing unit for measuring the flow rate of the gas to be filtered may be provided in the intake passage 50, and the flow rate sensing unit may control the driving amount of the dry dust supply adjusting unit 73 according to the measured flow rate So that the supply amount of the dry dust d can be controlled.

Referring to FIG. 4, the dry dust supply control unit 73 includes a rotor unit 73b, a rotation drive unit 73a, and a cylindrical case.

Here, the rotor portion 73b may be formed with a plurality of blades at predetermined intervals along the circumferential direction. The rotation speed of the rotor portion 73b can be adjusted by a rotation driving portion 73a provided at one side.

In this case, the rotation driving unit may include an inverter motor or the like capable of selectively controlling the rotation speed, and the control unit may control the rotation driving unit to adjust the rotation speed of the rotor unit.

In addition, the inside of the drying dust supply control means 73 is provided with a cylindrical case, and the rotor portion 73b may be disposed in the cylindrical case. In this case, the cylindrical case is preferably formed corresponding to the rotation locus of the blade so that a plurality of compartment spaces 73e are formed by the blades.

The cylindrical case may have a charging portion 73c connected to the dust bag 72 on the upper side and a discharge portion 73d connected to the merging pipe 71 on the lower side.

In detail, the circular case is preferably provided with a rotor portion 73b. Here, the rotor portion 73b is formed with a plurality of blades disposed at predetermined intervals along the circumferential direction on one surface thereof, and the space in the circular case can be partitioned into a plurality of compartment spaces 73e by the blades .

The inlet portion 73c communicates with the dust bag 72 to guide the dry dust d into each of the partition spaces 73e and the outlet portion 73d communicates with the rotor portion 73b The drying dust d flowing into each of the partition spaces 73e can be discharged to the confluent pipe 71 side.

At this time, the rotor part 73b is rotated by the rotation driving part provided on the outside, and one compartment space 73e is rotated to communicate with the charging part 73c, and the drying dust d flows inward And the collected dry dust d can be discharged as the compartment space 73e is rotated toward the discharge portion 73d. Therefore, the supply amount of the dry dust can be adjusted according to the rotational speed of the rotor part.

In this case, it is preferable that the rotation driving unit is interlockedly controlled so that the supply amount of the dry dust is adjusted in correspondence with the content of the dust particles in the filtrate measured by the sensing means.

Accordingly, the dry dust d is excessively introduced into the intake passage 50, so that an appropriate amount of the dry dust d flows into the intake passage 50 without blocking or interfering with the flow of the intake passage 50. Therefore, It can flow smoothly.

Referring to FIG. 5, it is preferable that a mixing guide portion 51 is formed on the inner circumferential surface of the intake passage 50. Here, the mixing guide portion 51 may be formed on the inner circumferential surface of the intake passage 50 in which the dust supplying means 70 is joined.

In detail, the mixing guide portion 51 is formed on the side of the intake passage 50 in the traveling direction of the gas to be filtered in the portion connected to the merging pipe 71, and is disposed in the circumferential direction along the traveling direction of the gas to be filtered It is preferable to stray.

That is, the mixing guide portion 51 is formed in the circumferential direction on the inner circumferential surface of the intake passage 50 so that the dry dust d supplied to the intake passage 50 is mixed with the oil powder particles c, So that the gas to be filtered flows in a helical flow along the traveling direction of the target gas.

Accordingly, the number of times of collision between the powdery dust particles c and the dry dust d in the gas to be filtered can be increased and the powdery dust particles c and the dry dust d can be smoothly mixed .

2 to 3, it is preferable that the dust bag 72 is coupled to the inside of the support frame 74. Here, the support frame 74 may include upper frames 74a, 74b and 74c and lower frames 74d and 74e.

The lower frame may include a lower frame for aligning the dry dust supply control means with the lower part of the dust bag, and an upper frame selectively coupled to the upper frame to support the dust bag.

The upper frames 74a, 74b and 74c include upper vertical support bars 74a extending vertically and disposed on the outer side of the dust bag 72 and upper and lower support bars 74b supporting the lower side of the dust bag 72, A support bar 74c and a discharge guide 74b for selectively opening and closing the discharge port of the dust bag 72. [

At this time, the upper horizontal support bar 74c interconnects the upper vertical support bars 74a disposed on the outer side of the dust bag 72 so that the upper frames 74a, 74b, and 74c can stand upright To form a skeleton.

Accordingly, the upper frames 74a, 74b, and 74c may be separated and disposed at one side of the worksite, and various types of dust such as fine metal, synthetic resin powder, sand used in various processes, The dust bag 72 can be easily injected.

In addition, the upper horizontal support bar 74c may be provided with the discharge guide portion 74b. That is, the dust bag 72 is connected to the discharge guide portion 74b through a discharge port formed at the lower portion thereof, and the discharge guide portion 74b is selectively connected to the discharge portion 73c of the dry dust supply control means 73 Lt; / RTI >

Accordingly, the upper frame 74a, 74b, 74c can be moved or the dust bag 72 can be filled with the discharge guide portion 74b being closed. When the dust bag 72 is filled, The drying dust d may be supplied to the joining pipe 71 side by coupling the guide portion 74b with the dry dust supply adjusting means 73 and opening the discharge guide portion 74b.

The lower frames 74d and 74e are connected to a plurality of lower vertical support bars 74d selectively coupled to lower ends of the upper vertical support bars 74a and to the lower vertical support bars 74d, And a lower horizontal support bar 74e for guiding and supporting the dry dust supply adjusting means 73 so as to be disposed at the lower end of the discharge guide portion 74b.

At this time, an insertion groove into which the upper end of the lower vertical supporting bar 74d is inserted is formed in the lower end portion 74f of each upper vertical supporting bar 74a, and is inserted in a circumferential direction Preferably, the support vane portion is formed.

Accordingly, the upper frames 74a, 74b, and 74c can be stably coupled and supported on the upper frames 74d and 74e, and can be stably fixed to the ground when separated, The operation of supplying the dry dust by combining the filled and filled dust bags 72 can be smoothly performed.

The lower horizontal support bar 74e supports the lower side of the intake passage 50 connected to the merging pipe 71 so that the dry dust supply adjusting means 73 is disposed at the lower end of the discharge guide portion 74b. . That is, the lower horizontal support bar 74e interconnects the lower vertical support bar 74d, and the dry dust supply control means 73 may be disposed at a height range that can be coupled to the lower end of the discharge guide 74b .

Since the upper frames 74a, 74b, and 74c can be independently separated from the lower frames 74d and 74e, the dust bag 72 can be easily filled with dry dust. .

In addition, since the dust supplying means 70 is supported through the upper frame and the lower frame and can be easily installed, the usability of the product can be improved, and the dust- Since the supply means 70 can be conveniently installed and connected, the compatibility of the product can be improved.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

100: mold cell injection and cooling line dust collecting apparatus a: gas to be filtered
b: Compressed air c: Powdered dust particles
d: dry dust 10: housing
11: dust outlet 12: dust is sent
13: Through hole 20: Exhaust duct part
30: dust collecting part 31: filter frame
32: filter bag 40: pulse exhausting part
41: injection nozzle 42: pulse valve
43: Compressed air storage tank 50:
51: Mixing guide portion 60:
70: dust supply means 71: confluence tube
72: dust bag 73: drying dust supply adjusting means
74: Support frame

Claims (5)

A housing in which a dust collecting space is formed inside and a through hole is formed in an upper surface portion;
A dust collecting part extending downward along a rim of the through hole, the dust collecting part including a filter frame having a vent hole formed along an outer periphery thereof and a filter bag surrounding the outer periphery of the filter frame;
An exhaust duct portion communicating with the through hole on the upper portion of the housing;
An intake flow path communicating with the lower portion of the housing and sucking a gas to be filtered containing high-viscosity water-containing dust particles containing oil and moisture generated in a mold cell injection and cooling line;
Dust mixing means for joining with one side of the intake passage so as to coat the outer surface of the water-based dust particles to supply dry dust of low viscosity to the gas to be filtered; And
And a pulse exhausting part provided in the exhaust duct part, the pulse exhausting part being selectively opened to spray the compressed air so that the water-containing dust particles collected on the filter bag are coated on the outer surface by the dry dust,
Wherein a spiral mixing guide portion is protruded and formed on an inner circumferential surface of the intake passage in which the dust supplying means is merged so that the dry dust is mixed with the powdery dust particles. The method according to claim 1,
The dust supply means
A merging tube communicating with one side of the intake passage;
A dust bag which is provided on the upper side of the merging tube and stores the dry dust collected in the space to be filtered where the gas to be filtered is generated,
And a dry dust supply adjusting unit connected to one side of the merging pipe for adjusting a supply amount of the dry dust discharged to a lower portion of the dust bag. 3. The method of claim 2,
The dry dust supply adjusting means
A rotor portion having a plurality of blades formed at predetermined intervals along the circumferential direction,
A rotation driving unit for rotationally driving the rotor unit,
And a cylindrical case formed corresponding to a rotation locus of the blade so that a plurality of compartment spaces are formed by the blades,
Wherein the supply amount of the dry dust is controlled according to a rotation speed of the rotor unit. 3. The method of claim 2,
Wherein the dust bag is coupled to the inside of the support frame,
The support frame includes a lower frame for aligning the dry dust supply adjusting means to the lower part of the dust bag,
And an upper frame coupled to the upper frame for selectively separating the dust bag and supporting the dust bag. delete

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