JPH0539627U - Dust remover - Google Patents

Abstract

(57) [Abstract] [PROBLEM] The present invention provides a dust removing device capable of preventing the belt-shaped filter from deviating from the initial track with respect to the rotating drum or the guide roll and biasing even if the belt-shaped filter is partially loosened by use. . According to the present invention, there is provided a dust remover including a forward-reverse winding band-shaped filter disposed so as to block a flow path of dust-containing air, and a rotary drum and / or the rotary drum having the band-shaped filter wound in a meandering shape. It is characterized in that a large number of small protrusions are provided around a guide roll that guides the band-shaped filter or a surface material that covers these.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust remover. For example, in a tunnel for automobiles, a dust removing device that guides dust-containing air in the tunnel to a flow passage and removes the dust by filtering the dust-containing air in the flow passage is used. The present invention relates to an improvement of such a dust removing device.

[0002]

[Prior Art]

 Conventionally, as the dust removing device as described above, a device provided with a forward-reverse winding type band-shaped filter arranged so as to block the flow path of dust-containing air has been proposed and used (Japanese Patent Laid-Open No. 1-224026). In this conventional device, a belt-shaped filter wound in a meandering manner on a plurality of rotating drums in order to increase the filtration area is wound around the upper and lower drive rolls in the forward and reverse directions via a plurality of guide rolls, and the belt-shaped filter is wound. The dust-containing air is filtered at the meandering portion of the belt, and the band-shaped filter is regenerated by a regenerator provided near the upper and lower drive rolls.

However, in this conventional apparatus, when a band-shaped filter made of a synthetic resin non-woven fabric is partially loosened by use, it slips on the peripheral surface of the rotating drum or the guide roll, deviates from the initial track, and is offset. There is. If the band-shaped filter deviates from the initial orbit and deviates, the filtration efficiency of dust-containing air deteriorates, and in some cases part of the dust-containing air passes through without being filtered.

[0004]

[Problems to be solved by the device]

 The problem to be solved by the present invention is that, in the conventional device, when the band-shaped filter is partially loosened by use, the band-shaped filter slips on the peripheral surface of the rotating drum or the guide roll, deviates from the initial track, and deviates.

[0005]

Means for Solving the Problems The present invention, however, is directed to a dust removing device provided with a forward-reverse winding type band-shaped filter arranged so as to block a flow path of dust-containing air, and the band-shaped filter is meandered. The present invention relates to a dust remover characterized in that a number of small protrusions are provided around a wound roll drum and / or a guide roll that guides the band-shaped filter, or a surface material that covers these guide rolls.

In the present invention, an important point is that a large number of small protrusions are provided around a rotating drum having a belt-shaped filter wound in a meandering manner and / or a guide roll for guiding the belt-shaped filter, or a surface material covering these. It is in the place where it consists of. The small protrusions may be provided directly around all or part of the rotating drum or the guide roll, or may be provided around the surface material that covers them. The small protrusions may be integrally formed on the rotary drum, the guide rolls, the surface material, or may be separately attached by screwing, welding, bonding or the like. In order to increase the filtration area of dust-laden air and at the same time reduce the flow resistance of the dust-laden air, a rotary drum generally has a punching structure or a net-like structure with a large number of holes formed in its peripheral surface. When a rubber-made surface material is coated on such a rotary drum, a punching structure having a large number of holes communicating with the holes of the rotary drum is used as the surface material. Alternatively, it is preferable to use one having a network structure.

[0007]

[Action]

 Even if the band-shaped filter is partially loosened by use, the band-shaped filter is guided by being hooked and guided by the rotating drum, the guide roll, or the small projections provided around the surface material covering these, so that the deviation can be prevented.

[0008]

【Example】

 FIG. 1 is a vertical sectional view schematically showing an embodiment of the present invention. A band-shaped filter 21 is arranged so as to block the flow path 11 of the dust-containing air, and the band-shaped filter 21 is wound around a plurality of rotating drums 31 in a meandering shape. The band-shaped filter 21 is guided by a plurality of guide rolls 32 and wound around the upper and lower drive rolls 33 and 34 in the forward and reverse directions, and the air is provided between the guide rolls 32 and the drive rolls 33 and 34. Regeneration devices 43 and 44 having the injection nozzles 41 and 42 therein are interposed.

The belt-shaped filter 21 wound in a meandering manner on a plurality of rotating drums 31 in order to increase the filtration area is wound around the upper and lower drive rolls 33 and 34 in the forward and reverse directions via a plurality of guide rolls 32. The dust-containing air is filtered by the meandering portion of the strip filter 21, and the strip filters 21 are regenerated by the upper and lower regenerators 43 and 44.

FIG. 2 is a partially enlarged front view showing the rotary drum of the embodiment of FIG. 1, and FIG. 3 is a side view showing the rotary drum of FIG. The rotary drum 31 has a punching structure in which a large number of holes 51 are formed in the peripheral surface thereof, and is connected to a bearing 62 via a connecting rod 61. The bearing 62 is rotatably supported by a fixed shaft 63. ing. A surface material 71 is coated on the peripheral surface of the rotary drum 31, and a large number of holes 52 communicating with the holes 51 are formed in the surface material 71, and a large number of small projections 81 are integrally formed on the peripheral surface. Has been done.

Although the operation is as described above, even if the band-shaped filter 21 is partially loosened by use, the band-shaped filter 21 is guided by being hooked by the small projection 81 formed integrally with the surface material 71, and its deviation. This is a configuration for preventing the above.

[0012]

[Effect of the device]

 As is apparent, the present invention described above has an effect of preventing the belt-shaped filter from deviating from the initial track with respect to the rotating drum or the guide roll even if the belt-shaped filter is partially loosened by use.

[Brief description of drawings]

FIG. 1 is a vertical sectional view schematically showing an embodiment of the present invention.

FIG. 2 is a partially enlarged front view showing a rotary drum according to one embodiment of FIG.

FIG. 3 is a side view showing the rotary drum of FIG.

[Explanation of symbols]

11 ... Flow passage, 21 ... Strip filter, 31 ...
・ Rotating drum, 32 ... Guide rolls, 33, 34
..Driving rolls, 43, 44 ... Playback devices, 51, 5
2 ... Hole, 63 ... Shaft, 71 ... Surface material, 81 ...
..Small protrusions

Claims (2)

[Scope of utility model registration request] 1. A dust removing apparatus comprising a forward-reverse winding belt-shaped filter arranged so as to block a flow path of dust-containing air, in a rotary drum having the belt-shaped filter wound in a meandering manner and / or the belt-shaped filter. A dust remover characterized in that a large number of small projections are provided around a guide roll that guides the dust. 2. A dust remover comprising a forward-reverse winding band-shaped filter arranged so as to block a flow path of dust-containing air, in a rotary drum and / or the band-shaped filter having the band-shaped filter wound in a meandering manner. A dust remover characterized in that a guide roll that guides the surface is coated with a surface material, and the surface material is provided with a large number of small projections.