JPH0741337U - Suction hood device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an optimum suction device for a passage of a mobile device such as a traveling crane in which a suction duct cannot be arranged. [Structure] A dust collecting hood 5 is arranged at a position ahead of an opening 3 at the tip of a suction hood 2 connected to a hood main body 1 with a space 4 sufficient for traversing a traveling crane or the like being arranged. A blower fan 10 having directivity for blowing the gas to be treated toward the dust collecting hood 5 is incorporated therein.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction hood device capable of efficiently sucking dust gas even in a place where a connecting duct cannot be piped across a traveling crane or the like.

[0002]

[Prior art]

 Generally, as a suction hood device for dust gas, odorous gas, etc., the suction hood is located at the work site in the factory, which is the source, to suck dust-containing gas and odor-containing gas, and to open it outdoors from the connecting duct connected to the suction hood. It is released to the atmosphere, or if necessary, it is guided to a dust collector and subjected to dust removal processing, and then released into the atmosphere.

[0003]

[Problems to be solved by the device]

 In such a suction device, it is necessary to dispose a connecting duct that connects the suction hood and the outside in a factory or the like. It cannot be installed because it obstructs the traveling crane. As a result, in such a case, there is a problem that the dust-containing gas cannot be collected and the environment in the factory is significantly deteriorated. An object of the present invention is to solve the above disadvantages by moving a gas to be treated such as dust-containing gas from a generation source in a factory into the atmosphere without disposing a suction duct. is there.

[0004]

[Means for Solving the Problems]

 The suction hood device of the present invention, which has been made to solve the above-mentioned problems, has a space sufficient for crossing a traveling crane or the like at the position ahead of the opening at the tip of the cylindrical suction hood connected to the hood body. The dust collecting hood is arranged at a distance, and a directional fan for blowing the gas to be treated toward the dust collecting hood is incorporated in the suction hood.

[0005]

【Example】

 The present invention will now be described in detail with reference to the illustrated embodiment. In the figure, 1 is a hood main body that covers a workplace that generates dust and the like, 2 is a cylindrical suction hood that is connected to the upper part of the hood main body 1, and the upper end of the suction hood 2 is an upward opening 3 It has been opened to the public. Further, a dust collecting hood 5 is arranged in front of the opening 3 with a space 4 sufficient for crossing the traveling crane 7 and the like.

The dust-collecting hood 5 is connected to a roof fan 8 installed on the roof 6 to release the collected dust into the atmosphere, but the roof fan 8 depends on the gas to be treated. It is also possible to connect to a dust collector (not shown) or the like for purification treatment.

On the other hand, a blower fan 10 having a directivity for blowing the gas to be treated toward the dust collecting hood 5 is incorporated in the suction hood 2. The directional fan 10 is a fan that creates a deep and permeable wind and can obtain the desired air flow direction without diffusing the air beyond a certain distance. As one example, the wind speed distribution curve of the blower fan 10 has a maximum wind diffusion angle of 11 degrees or less as shown in FIG. 3, and can blow a directional wind up to about 50 meters away.

[0008]

[Action]

 In this structure, since the hood body 1 and the dust-collecting hood 5 are separated from each other by a sufficient space 4, the traveling crane 7 can move freely without being disturbed. Will be possible. On the other hand, although the connecting duct is not provided between the hood body 1 and the dust collecting hood 5, the suction hood 2 sucks in the suction hood 2 because the blower fan 10 having directivity is incorporated in the suction hood 2. All the treated gas is sent to the dust collecting hood 5 without being diffused, so that the treated gas is reliably collected. As the gas to be treated, not only the dust-containing gas generated in the casting process but also the gas having an odor can be treated in the same manner.

[0009]

[Effect of device]

 As is clear from the above description, the present invention can reliably suck dust gas and the like even in a passage of a mobile device in which a suction hood cannot be arranged, and can significantly improve the environment. In addition, the suction hood can be partially omitted, the construction period can be shortened, and the construction can be performed at low cost, which is an excellent effect. Therefore, the present invention has an extremely large practical value as a suction hood device that eliminates the conventional problems.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an embodiment of the present invention.

FIG. 3 is a graph showing a wind speed distribution curve of a directional fan.

[Explanation of symbols]

 1 Hood main body 2 Suction hood 3 Opening part 4 Space part 5 Dust collecting hood 10 Blower fan

Claims (1)

[Scope of utility model registration request] 1. A space (4) sufficient for crossing a traveling crane or the like is provided at a position ahead of an opening (3) at the tip of a cylindrical suction hood (2) connected to the hood body (1). Dust collection hood
(5) is arranged, and a suction fan (10) having a directivity for blowing the gas to be treated toward the dust collecting hood (5) is incorporated in the suction hood (2). Hood device.