JP2007113234A - Emulsion scattering prevention device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emulsion scattering prevention device capable of preventing asphalt emulsion from scattering to the outside sufficiently and taking sufficient consideration for the environment in the surroundings. <P>SOLUTION: This emulsion scattering prevention device is provided with a scattering prevention cover 10 arranged so as to surround a spray bar 8 provided in an asphalt finisher or emulsion spray vehicle to prevent asphalt emulsion sprayed from the spray bar 8 from scattering to the outside, a suction means 12 for sucking the asphalt emulsion scattered into the scattering prevention cover 10 together with air, and a filter 14 for separating the asphalt emulsion sucked together with air by the suction means 12 from the air and catching it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an emulsion scattering prevention device of an asphalt finisher provided with an emulsion dispersion device or an emulsion dispersion wheel, and more particularly to an emulsion scattering prevention device with sufficient consideration for the surrounding environment.

As a conventional technique related to an emulsion scattering prevention apparatus, for example, an emulsion dispersion apparatus in a paving machine as described below is known. According to this prior art, the lower part of the spray part for spraying the asphalt emulsion on the base is covered with a cover body, so that the asphalt emulsion sprayed from the spray part is prevented from scattering to the periphery (for example, Patent Document 1).
JP 2001-40615 (pages 3 to 4, FIGS. 1 and 3).

  In the prior art described in Patent Document 1, the lower part of the spray portion for spraying the asphalt emulsion is only covered with a cover body. For this reason, if the amount of asphalt emulsion sprayed from the spray section increases as the asphalt pavement progresses, the amount of scattered asphalt emulsion also increases, and the odorous asphalt emulsion leaks out from the cover body, adversely affecting the surrounding environment. May cause effects.

  Therefore, there is a technical problem to be solved in order to provide an emulsion scattering prevention device that can sufficiently prevent the asphalt emulsion from splashing to the outside and is sufficiently considerate of the surrounding environment. The present invention aims to solve this problem.

  The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 is disposed so as to surround a spray bar provided in a tuck paver or an emulsion sprayer, and sprayed from the spray bar. An anti-scattering cover for preventing the asphalt emulsion from splashing to the outside, and an absorption pump that communicates with the inside of the anti-scattering cover and sucks up the asphalt emulsion that floats in the air and floats in the air. Emulsions having a lifting means, and a filter provided on a communication path between the inside of the anti-scattering cover and the suction means, and separating and collecting the asphalt emulsion sucked up together with the air by the suction means. An anti-scattering device is provided.

  According to this configuration, when the asphalt emulsion is sprayed by the spray bar provided in the tuck paver or the emulsion spraying vehicle, the asphalt emulsion that is scattered inside the scattering prevention cover and floats in the air is sucked up together with the air by the suction means. The asphalt emulsion is separated from the air by a filter and collected. As a result, harmless air is exhaled to the outside.

  An invention according to claim 2 is provided to surround a spray bar provided in a tuck paver or an emulsion spraying wheel, and to prevent scattering of the asphalt emulsion sprayed from the spray bar to the outside. A duct communicating between the inside of the anti-scattering cover and a space in the upper part of the emulsion tank for storing the asphalt emulsion to be sprayed, and a space in the upper part of the emulsion tank, and is scattered in the anti-scattering cover. A suction means for sucking up the asphalt emulsion floating in the air together with the air through the duct, and a space between the upper part of the emulsion tank and the suction means, and the suction means together with the air. A filter for separating the sucked asphalt emulsion from the air and dropping the separated asphalt emulsion into the emulsion tank. Providing shatterproof device that emulsion.

  According to this configuration, when asphalt emulsion is sprayed by a spray bar provided in a tuck paver or an emulsion spraying vehicle, the asphalt emulsion that is scattered inside the scattering prevention cover and floats in the air is absorbed by the suction means into the duct and emulsion. It is sucked up with air through the space in the upper part of the tank. The sucked asphalt emulsion is separated from the air by a filter, dropped back into the emulsion tank, and harmless air is discharged to the outside.

  According to a third aspect of the present invention, there is provided an emulsion scattering prevention apparatus wherein the filter is replaceable.

  According to this configuration, whenever the amount of asphalt emulsion collected on the filter reaches a certain amount, the filter is replaced with a new filter, so that the asphalt emulsion collecting function by the filter is always performed normally.

  An invention according to claim 1 is provided so as to surround a spray bar provided in a tuck paver or an emulsion spraying wheel, and to prevent scattering of the asphalt emulsion sprayed from the spray bar to the outside. A suction means that communicates with the inside of the scattering prevention cover, and that sucks up the asphalt emulsion that floats in the air and floats in the air together with the air; and an inside of the scattering prevention cover and the suction means. Since the asphalt emulsion which is provided on the communication path and separates and collects the asphalt emulsion sucked up together with the air by the sucking means is provided, the asphalt emulsion scattered inside the scattering prevention cover is filtered by the air. It is collected separately and harmless air is exhaled to the outside. Can be advantageously consideration for the surrounding environment to provide a shatterproof device for sufficient emulsion can be prevented.

  An invention according to claim 2 is provided to surround a spray bar provided in a tuck paver or an emulsion spraying wheel, and to prevent scattering of the asphalt emulsion sprayed from the spray bar to the outside. A duct communicating between the inside of the anti-scattering cover and a space in the upper part of the emulsion tank for storing the asphalt emulsion to be sprayed, and a space in the upper part of the emulsion tank, and is scattered in the anti-scattering cover. A suction means for sucking up the asphalt emulsion floating in the air together with the air through the duct, and a space between the upper part of the emulsion tank and the suction means, and the suction means together with the air. A filter for separating the sucked asphalt emulsion from the air and dropping the separated asphalt emulsion into the emulsion tank. Since the asphalt emulsion splashed inside the splash prevention cover is separated from the air by the filter and returned to the emulsion tank, and harmless air is discharged to the outside, the effect of the invention of claim 1 is achieved. In addition, the asphalt emulsion separated from the air can be reused, and there is an advantage that the maintainability is improved.

  In the invention according to claim 3, since the filter is replaceable, the asphalt emulsion collecting function can be performed normally at all times, and the odorous asphalt emulsion is always sufficiently scattered to the outside. There is an advantage that it can be prevented.

  Surrounding the spray bar provided in the tuck paver or emulsion spraying vehicle for the purpose of providing an emulsion scattering prevention device that can sufficiently prevent the asphalt emulsion from splashing to the outside and is sufficiently considerate of the surrounding environment The anti-scattering cover for preventing the asphalt emulsion sprayed from the spray bar from being scattered to the outside, communicated with the inside of the anti-scattering cover, and scattered into the anti-scattering cover for air. Asphalt emulsion that sucks up the asphalt emulsion floating in the inside together with air, and is exchangeably provided on the communication path between the inside of the anti-scattering cover and the suction means, and sucked up with air by the suction means And a filter that separates and collects from the air.

  Further, the portion after the portion communicating with the inside of the anti-scattering cover can be configured as follows. That is, a duct that communicates the inside of the anti-scattering cover and the space in the upper part of the emulsion tank that stores the asphalt emulsion to be sprayed, and the space in the upper part of the emulsion tank are connected to the anti-scattering cover. A suction means for sucking up the asphalt emulsion floating in the air together with the air through the duct, and a space between the upper part of the emulsion tank and the suction means, and the suction means together with the air. This was achieved by separating the sucked asphalt emulsion from the air and providing a filter for dropping the separated asphalt emulsion into the emulsion tank.

  Embodiment 1 of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of an asphalt finisher (hereinafter referred to as a tuck paver) provided with an emulsion spraying apparatus as an application example of the present embodiment and Example 2 described later, and FIG. 2 is a configuration diagram of the present embodiment. First, the tack paver will be described with reference to FIG. The tuck paver 1 is provided with a hopper 2 for feeding asphalt mixture at the front of the vehicle body, and at the rear of the vehicle body, the asphalt mixture fed into the hopper 2 and conveyed rearward by a bar conveyor (not shown). A spreading screw 3 for spreading the spread asphalt on the road surface and a screed 4 for spreading the spread asphalt composite material to a uniform thickness are arranged.

  An emulsion spraying mechanism 5 for spraying the asphalt emulsion on the lower road surface on which the asphalt mixture is spread is disposed immediately in front of the spreading screw 3. An emulsion tank 6 for storing a sprayed asphalt emulsion is mounted on the upper part of the vehicle body in the front-rear direction. An engine 7 is mounted in front of the emulsion tank 6.

  Next, the configuration of the emulsion scattering preventing apparatus according to this embodiment will be described with reference to FIG. In FIG. 2, a plurality of spraying nozzles 9,... Serving as asphalt emulsion spraying ports are provided at appropriate intervals on a spray bar 8 constituting the emulsion spraying mechanism 5. An anti-scattering cover 10 for preventing the sprayed asphalt emulsion from scattering to the outside is attached to the spray bar 8 so as to surround the spray bar 8. The scattering prevention cover 10 is made of rubber or the like.

  On the upper part of the scattering prevention cover 10, a dust collecting part 11 is disposed so as to face the inner side of the scattering prevention cover 10. The dust collecting portion 11 serves as a collection port for collecting the asphalt emulsion scattered in the scattering prevention cover 10 together with air.

  A blower 12 serving as a suction means for sucking up the asphalt emulsion scattered in the scattering prevention cover 10 together with air is communicated to the dust collecting portion 11 via a duct 13. A filter 14 for separating and collecting the asphalt emulsion sucked together with the air by the blower 12 is replaceable on the duct 13, that is, the communication path between the dust collecting portion 11 and the blower 12. It is arranged.

  Next, the operation of the emulsion scattering prevention apparatus according to this embodiment configured as described above will be described. The asphalt emulsion scattered inside the anti-scattering cover 10 when the asphalt emulsion is sprayed from the spray nozzles 9 by the spray bar 8 is sucked up together with air by the blower 12 through the dust collecting portion 11 and the duct 13.

  During this suction process, the asphalt emulsion is separated from the air by the filter 14 and collected. As a result, harmless air from which the asphalt emulsion has been removed is discharged from the blower 12 to the outside.

  The filter 14 is replaced with a new filter 14 every time the collected amount of asphalt emulsion reaches a certain amount. Thereby, the collecting function of the asphalt emulsion by the filter 14 is always performed normally.

  As described above, in the emulsion scattering prevention apparatus according to the present embodiment, harmless air from which the asphalt emulsion has been removed is discharged from the blower 12 to the outside, so that the asphalt emulsion accompanied by odor is scattered to the outside. Therefore, it is possible to provide an emulsion scattering prevention device that can sufficiently prevent the above-described problem and sufficiently consider the surrounding environment.

  By making the filter 14 replaceable, the asphalt emulsion collecting function can be performed normally at all times, and the asphalt emulsion with odor can always be sufficiently prevented from scattering to the outside.

  A second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a configuration diagram of this embodiment. This embodiment is also applied to the tack paver (paving machine) shown in FIG. 3 that are the same as or equivalent to those in FIGS. 1 and 2 are denoted by the same reference numerals as those in FIG.

  In the present embodiment, the inner side of the scattering prevention cover 10 is communicated with the space portion 6 a in the upper part of the emulsion tank 6 through the duct 15. Above the emulsion tank 6, there is a blower 16 as a suction means for sucking up the asphalt emulsion scattered in the splash prevention cover 10 together with air through the duct 15 and the space 6a in the upper part of the emulsion tank 6. The tank 6 is disposed in communication with the upper space 6 a.

  Between the space 6 a in the upper part of the emulsion tank 6 and the blower 16, the asphalt emulsion sucked together with air by the blower 16 is separated from the air, and the separated asphalt emulsion is separated in the emulsion tank 6. A filter 17 to be dropped on is disposed.

  Next, the operation of the emulsion scattering prevention apparatus according to this embodiment having the above-described configuration will be described. When the asphalt emulsion is sprayed from the spray nozzles 9 by the spray bar 8, the asphalt emulsion splashed inside the splash prevention cover 10 is blown by the blower 16 through the duct 15 and the space 6a in the upper part of the emulsion tank 6. Sucked with air.

  In this sucking process, the asphalt emulsion is separated from the air by the filter 17 and dropped back into the emulsion tank 6. As a result, harmless air from which the asphalt emulsion has been removed is discharged from the blower 16 to the outside.

  As described above, in the emulsion scattering prevention apparatus according to this embodiment, the asphalt emulsion splashed inside the scattering prevention cover 10 is separated from the air by the filter 17 and returned to the emulsion tank 6, and from the blower 16 to the outside. The non-hazardous air from which the asphalt emulsion has been removed is exhaled, and in addition to the same effects as those of Example 1, the asphalt emulsion separated from the air can be reused, and the maintainability is improved. Become good.

  Further, the separation function of the asphalt emulsion by the filter 17 can be always performed normally without frequently replacing the filter 17 with a new one.

  In addition, the said Example 1, 2 is applicable also to emulsion dispersion vehicles other than a tack paver (paving machine).

  Further, the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

FIG. 1 shows an emulsion scattering prevention apparatus according to an embodiment of the present invention.
The side view of the tack paver which is an application example of Example 1,2. 1 is a configuration diagram of Embodiment 1. FIG. FIG.

Explanation of symbols

6 Emulsion tank 6a Space 8 Spray bar 10 Splash prevention cover 12, 16 Blower (suctioning means)
14, 17 Filter 15 Duct

Claims (3)

  An anti-scatter cover for preventing the asphalt emulsion sprayed from the spray bar from being scattered outside the spray bar provided on the tack paver or the emulsion spraying wheel, and an inside of the anti-scatter cover A suction means for sucking up the asphalt emulsion, which is communicated and scattered in the scattering prevention cover and floats in the air, together with the air; and provided on a communication path between the inside of the scattering prevention cover and the suction means; And a filter for separating and collecting the asphalt emulsion sucked up together with the air by the raising means.   A splash prevention cover disposed around a spray bar provided in the tuck paver or the emulsion spraying wheel to prevent the asphalt emulsion sprayed from the spray bar from scattering to the outside, and an inner side of the splash prevention cover; Asphalt that communicates with the space in the upper part of the emulsion tank that stores the asphalt emulsion for spraying, and the space in the upper part of the emulsion tank that scatters in the anti-scattering cover and floats in the air Suction means for sucking up the emulsion together with air through the duct; and an asphalt emulsion which is provided between the space in the upper part of the emulsion tank and the suction means and sucked up with air by the suction means. And a filter for dropping the separated asphalt emulsion into the emulsion tank. Scattering prevention device.   The emulsion scattering prevention apparatus according to claim 1 or 2, wherein the filter is replaceable.

Images