KR100620071B1 - Dust collector - Google Patents

Abstract

The present invention relates to a dust collector exhibiting maximum dust collection efficiency by effectively removing dust collected on the outer circumferential surface of the filter.

The dust collector according to the present invention is installed in the suction chamber of the casing, and the dust collecting chamber, the filter chamber, the dust collecting chamber, the suction chamber are formed in order from the lower side, the suction port is formed on one side of the filter chamber and the discharge opening is formed on the upper side of the suction chamber. A suction fan, a plurality of filters arranged perpendicularly to the filter chamber of the casing, a dust extraction means for blowing dust collected on the outer circumferential surface of the filter by injecting compressed air with the filter, and extractable to the dust collecting chamber of the casing And a dust collecting cylinder, wherein the dust extracting means is provided in the casing, a compressed air storage cylinder installed at the rear side of the dust extraction chamber and compressing and storing the air supplied by the compressor, and a pipe connecting the compressor and the compressed air storage cylinder. Installed between the air filter provided on the branch, branch pipe branching while extending forward from the compressed air storage cylinder, and between the compressed air storage cylinder and the branch pipe And a valve for opening and closing the flow path, a first air spray duct connected to the branch pipe to provide compressed air to the inner circumferential surface of the filter, and a second air spray duct connected to the branch pipe to provide compressed air to the outer circumferential surfaces of the filters. Characterized in that.

Dust collector, suction fan, filter, dust extraction means, compressed air storage container, valve, air spray duct

Description

Dust collector {DUST COLLECTOR}

1 is a schematic structural diagram of a conventional dust collector.

2 is a perspective view of a dust collector according to an embodiment of the present invention.

3 is a partial cross-sectional view of the dust collector according to an embodiment of the present invention.

Figure 4 is a schematic view of the dust extraction means in the dust collector according to an embodiment of the present invention.

Figure 5 is a schematic view of another embodiment of the dust collecting means in the dust collector according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: dust collector

10: casing

11: intake port

20: suction fan

30: filter

40: exhausting means

41: compressor

42: compressed air storage container

43: air filter

44: branch duct

45: solenoid valve

46: first air spray duct

47, 47 ': second air spray duct

50: dust collector

100: conventional dust collector

The present invention relates to a dust collector, and more particularly, to a dust collector in which dust such as dust or air suspended matter collected in a filter can be effectively separated and collected.

In general, a dust collector is a type of filtration device that vacuum-sucks air in a work site and passes a filter installed therein to collect dust contained in suction air so that only clean air is discharged again.

1 shows a schematic structural diagram of such a conventional dust collector 100.

As shown in FIG. 1, in the conventional dust collector 100, the dust collecting chamber 111, the filter chamber 112, the dust collecting chamber 113, and the suction chamber 114 are sequentially formed from the lower side of the filter chamber 112. A suction port 115 is formed at one side, and a discharge port 116 is formed at an upper side of the suction chamber 114, and a casing 110 having a caster 117 for movement at a lower surface thereof is installed in the suction chamber 114. And a plurality of filters 130, which are arranged in the filter chamber 112 to filter the dust contained in the intake air, and the exhaust chamber 113, which draw in external air through the inlet 115. ) Is provided in the filter 130 and the dust extraction means 140 to shake off the dust collected in the filter 130 by injecting compressed air into the filter 130, and is installed in the dust collecting chamber 111 to be withdrawn by the dust extraction means 140 And a dust collecting container 150 for receiving dust separated from the filter 130.

In the above-described conventional dust collector 100, external air is sucked into the filter chamber 112 of the casing 110 through the suction port 115 by driving the suction fan 120, and the suction air is the filter 130. ) And is discharged to the outside through the exhaust chamber 116 and the suction chamber 114 through the outlet 116, in this case dust contained in the suction air is collected on the outer peripheral surface of the filter 130 do.

The more dust is collected on the outer circumferential surface of the filter 130, the more the intake flow path of the air is shielded and the dust collection efficiency is lowered. Thus, the dust collecting means 140 is periodically operated to shake off the dust collected on the outer circumferential surface of the filter 130. In the above-described conventional dust collector 100, the filter 130 is formed in the shape of a cylindrical cartridge, and the dust extraction means 140 is formed inside the filter 130 through an injection pipe positioned at the upper part of the filter 130. Since the dust is collected on the outer circumferential surface of the filter 130 by injecting air into the space to be accommodated in the lower dust collector 150, the compressed air injected by the dust extraction means 140 of the filter 130 There is a problem that the dust collected on the outer circumferential surface of the filter 130 can not shake off properly because it can not be applied over the entire inner circumferential surface.

 Accordingly, the present invention is based on the problem to provide a dust collector exhibiting the maximum dust collection efficiency by effectively removing dust collected on the outer peripheral surface of the filter.

The above-mentioned problem is solved by a dust extraction means comprising a first air spray duct for providing compressed air to the inner circumferential surface of the filter and a second air spray duct extending between the filters to provide compressed air onto the outer circumferential surface of the filters. It is solved by the dust collector according to the present invention, which completely shakes off the dust collected on the outer circumferential surface to be accommodated in the dust collector.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail.

2 shows a perspective view of a dust collector 1 according to an embodiment of the invention, and FIG. 3 shows a partial cross-sectional view of the dust collector 1 according to an embodiment of the invention.

2 and 3, the dust collector 1 according to the embodiment of the present invention has a dust collecting chamber 11, a filter chamber 12, a dust collecting chamber 13, and a suction chamber 14 from a lower side. In the casing 10 and the suction chamber 14 of the casing 10 are formed in order, the inlet 15 is formed on one side of the filter chamber 12, the outlet 16 is formed on the upper side of the suction chamber 14 A plurality of filters 30 arranged perpendicularly to the filter chamber 12 of the casing 10, the suction fan 20 to be installed, and the filter 30 are sprayed with compressed air on the outer circumferential surface of the filter 30. The dust collecting means 40 which shakes off the collected dust and the dust collecting container 50 which are installed in the dust collecting chamber 11 of the casing 10 so that extraction is possible are possible.

Here, the casing 10 is a frame in which the structural members necessary for dust collection are installed at the same time as forming the outer shape of the dust collector 1 according to an embodiment of the present invention, and inside the casing 10 from the lower side of the dust collector ( A dust collecting chamber 11 for storing the 50, a filter chamber 12 in which the filters 30 are arranged, a dust collecting chamber 13 in which most of the dust removing means 40 are installed, and a suction fan 20 The suction chamber 14 to be installed is formed in this order.

The dust collecting chamber 11 formed at the lowermost part of the casing 10 is a space in which the dust collecting container 50 is accommodated, and is formed in a structure in which the front side is opened for taking out the dust collecting container 50.

The filter chamber 12 formed at the upper part of the dust collecting chamber 11 is a space in which the filters 30 are arranged and installed. The filter chamber 12 is connected to the dust collecting chamber 11 at the lower part thereof but is formed in a contiguous manner. ) Is formed by being separated by the first partition 12a, and the filters 30 are detachably mounted on the first partition 12a to communicate the interior space of the filter 30 with the dust removal chamber 13. The filter holder 12b is arranged, and a suction port 15 for suctioning external air is formed at one lower portion of the filter chamber 12.

The dust removal chamber 13 formed in the upper part of the filter chamber 12 is a space in which most of the dust removal means 40 is installed, and is partitioned with the filter chamber 12 in the lower part by the 1st partition 12a, It is partitioned with the suction chamber 14 in the upper part by the 2nd partition 13a.

The suction chamber 14 formed in the upper part of the dust removal chamber 13 is a space for installing the suction fan 20, and the suction chamber 20 is introduced into the casing 10 by the suction fan 20 on the upper side thereof and the filter 30. The discharge port 16 for filtering the clean air introduced into the suction chamber 14 to the outside of the casing 10 is formed.

The lower part of the casing 10 is provided with a caster 17 for the movement of the dust collector 1 according to an embodiment of the present invention, the dust collector 1 according to an embodiment of the present invention on one side of the casing 10 ) Is provided with an operation control unit 18 for operation and control, the front side of the filter chamber 12 is formed to be opened and closed by the door (19a) for the replacement of the filter 30, The front side is preferably formed to be opened and closed by the door 19b for troubleshooting of the exhausting means 40. The doors 19a and 19b are hinged on one side of the casing 10 and a fixture for maintaining the closed state on the casing 10 is provided on the other side.

A suction fan 20 is installed in the suction chamber 14 of the casing 10. The suction fan 20 draws external air through the inlet 15 to the filter chamber 12 and filters the discharge air. 16) provides a forced suction input so that only clean air is discharged to the outside. The suction fan 20 includes a fan motor 21 and a fan 23 fixed to the shaft of the fan motor 21.

Filters 30 are arranged and installed in the filter chamber 12 of the casing 10, which filters the air sucked into the filter chamber 12 by the suction fan 20. It serves to collect the dust and the like contained in the outer peripheral surface, the cylindrical filter member is integrally formed between the circular upper frame and the circular lower frame, the upper frame is the filter holder 12b of the first partition wall (12a) It is preferable that the cylindrical cartridges are formed in a cylindrical cartridge shape, which can be detachably mounted and fixed to each other.

Most of the dedusting means 40 is installed in the dedusting chamber 13 of the casing 10, which is collected on the outer circumferential surface of the filter 30 by spraying compressed air onto the filter 30. 4 serves to shake off the dust, FIG. 4 shows a schematic view of such dust removal means 40 and FIG. 5 shows a schematic view of another embodiment of the dust removal means 40.

In the dust collector 1 according to the embodiment of the present invention, the above-described dust removing means 40 is shown in FIGS. 2 to 5, and the compressor 41 and the dust collecting chamber 13 provided in the casing 10. A compressed air storage cylinder 42 installed on the rear side of the compressed air reservoir 42 for compressing and storing the air supplied by the compressor 41, and an air filter provided on a pipe connecting the compressor 41 and the compressed air storage cylinder 43 ( 43, a branch pipe 44 branching while extending forward from the compressed air storage cylinder 42, a valve 45 provided between the compressed air storage cylinder 42 and the branch pipe 44 to open and close the flow path, A first air injection duct 46 connected to the branch pipe 44 to provide compressed air to the inner circumferential surface of the filter 30 and a compressed air to the outer circumferential surface of the filters 30 to the branch pipe 44. It characterized in that it comprises a second air injection duct (47, 47 ').

Here, the compressor 41 is provided on the casing 10 to pump external air to continuously supply the compressed air into the compressed air storage container 42 so that a high pressure for spraying the air is formed in the compressed air storage container 42.

The air supplied by the compressor 41 is stored in the compressed air storage container 42. The compressed air storage container 42 forms a high pressure by storing the air continuously supplied by the compressor 41 in a predetermined space. It is preferable to be formed of a material that can withstand high pressure.

An air filter 43 is provided on a conduit connecting the compressor 41 and the compressed air storage cylinder 43, which is included in the air supplied to the compressed air storage cylinder 42 by the compressor 41. It filters out the dust.

A plurality of branch pipes 44 extend forward from the compressed air reservoir 42, which is configured to first and second air injection ducts 46 and 47 of the compressed air in the compressed air reservoir 42. 47 '), and preferably extends along an extension line across the diameter of the filter, one for each filter 30 in a row.

Valves 45 are respectively provided between the compressed air storage cylinder 42 and the branch pipe 44, which open and close the flow path under the control of the operation control unit 18 to control the air in the compressed air storage cylinder 42. Is provided to the filter 30 through the branch pipe 44. The valve 45 is preferably formed of a solenoid valve that is opened and closed periodically.

A plurality of first air injection ducts 46 are connected to the branch pipe 44, and the first air injection ducts 46 provide compressed air to the inner circumferential surface of the filter 30, and the filters 30 respectively. The filter holder 12b of the fixed first partition wall 12a is positioned at each center and serves to shake off dust collected on the outer circumferential surface of the filter 30 by spraying compressed air into the inner space of the filter 30. The first air spray duct 46 is preferably formed integrally with the branch pipe.

A second air spray duct 47, 47 ′ is also connected to the branch pipe 44, which provides compressed air to an outer circumferential surface of the filters 30. The outer circumferential surface of the filter 30 by injecting compressed air onto the outer circumferential surface of the adjacent filters 30 positioned in the space between the filters 30 fixed by the filter holder 12b of the first partition 12a, respectively. It acts to shake off the dust and the like. The second air spray ducts 47 and 47 'are preferably fixed to the first partition 12a and connected to the branch pipe 44 by the flexible pipe 48.

As shown in FIG. 4, the second air injection duct 47 extends over the entire length of the filter 30 into the space between the filters 30 and distributes the injected compressed air on its outer peripheral surface. It is preferable that the injection hole 47a is formed. In this case, compressed air can be provided evenly over the entire length of the filters 30, so that dust collected on the outer circumferential surface of the filters 30 can be shaken off quickly.

As shown in FIG. 5, the second air injection duct 47 ′ may be provided with a propeller 47 a ′ extending into the space between the filters 30 and dispersing the compressed air injected at the lower end thereof. In this case, it is preferable that injection holes are formed in the second air injection duct 47 '.

In the dust collecting chamber 11 of the casing 10, a dust collecting container 50 is installed to be withdrawn in the form of a drawer, which is separated from the outer circumferential surface of the filter 30 by the dust collecting means 40. It is a container in which dust and the like are separated and collected, and when the dust and the like are filled to some extent, they are taken out and emptied and pushed back into the dust collecting chamber.

Hereinafter, the overall operation of the dust collector 1 according to an embodiment of the present invention will be described:

First, when the operation button on the operation control unit 18 is pressed, the suction fan 20 is operated to introduce external air into the filter chamber 12 through the suction port 15. The intake air introduced into the filter chamber 12 passes through the filter 30 to remove dust and the like, and is changed into clean air, and then moved upward through the filter holder 12b. It is discharged to the outside through the outlet 16 of, in this case dust contained in the intake air is not passed through the filter 30 is collected on the outer peripheral surface of the filter (30).

As dust and the like are collected on the outer circumferential surface of the filter 30, the suction fan 20 takes a lot of load and the suction power gradually decreases. To prevent this, the dust removal means 40 is periodically operated to prevent the outer circumferential surface of the filter 30. The dust collected on the forcibly shaken out to be accommodated in the lower dust collecting container 50, in the dust collector 1 according to an embodiment of the present invention by the compressor (41) provided in the casing (10) In the state where the air is stored at high pressure in the compressed air reservoir 42 via the air filter 43, the valve 45 is located on the conduit between the compressed air reservoir 42 and the branch pipe 44 and periodically opened and closed. The compressed air in the compressed air reservoir 42 is provided to the branch pipe 44, and the compressed air provided to the branch pipe 44 is provided with the first air spray duct 46 and the second air spray ducts 47, 47 '. Through the supply through the inner circumferential surface and the outer circumferential surface of the filter 30 through Cost and dust collected on the outer peripheral surface of the plug 30 is whisked away by force. The dust removal by the dust removal means 40 is preferably performed in a state where the operation of the suction fan 20 is stopped.

Therefore, the dust collector according to the present invention as described above is able to completely shake off the dust collected on the outer peripheral surface of the filter by spraying compressed air not only on the inner circumferential surface of the filter but also on the entire outer circumferential surface, so that the dust removal performance is very excellent.

Claims (3)

delete delete A dust collecting chamber, a filter chamber, a dust collecting chamber, and a suction chamber are formed in order from the lower side, and a suction port is formed at one side of the filter chamber, and a discharge port is formed at the upper side of the suction chamber, and a suction fan installed in the suction chamber of the casing. And a plurality of filters arranged perpendicularly to the filter chamber of the casing, dust extraction means for blowing off the dust collected on the outer circumferential surface of the filter by spraying compressed air with the filter, and extractable to the dust collecting chamber of the casing. In a dust collector comprising a dust collector, The dedusting means, A compressor provided on the casing; A compressed air storage cylinder installed at a rear side of the dust removal chamber and configured to compress and store air supplied by a compressor; An air filter provided on a conduit connecting the compressor and the compressed air storage cylinder; Branch pipe branch extending forward from the compressed air storage cylinder; A valve installed between the compressed air reservoir and the branch pipe to open and close the flow path; A first air injection duct connected to the branch pipe to provide compressed air to an inner circumferential surface of the filter; And And a second air spray duct connected to the branch pipe to provide compressed air to an outer circumferential surface of the filters. The second air spray duct is a dust collector, characterized in that it is provided with a propeller extending into the space between the filters and disperses the compressed air injected at the lower end.

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