JPS6236732B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mist collection device, and particularly to a mist collection device having a cyclone separator.

[Conventional technology]

As a conventional dust collection device,
The one described in Publication No. 28480 is publicly known. This dust collection device introduces dust together with surrounding air from a hood into a cyclone separator through a duct, and a condenser made of an electrostatic precipitator is provided in the duct.

[Problems to be solved by the invention] Since such a dust collection device uses an electrostatic precipitator as a condenser, high voltage must be generated in the duct, and electrical wiring etc. are troublesome. Yes, it was expensive.

On the other hand, it is conceivable to use a fibrous body as this aggregator, but simply stacking the fibrous bodies does not provide a sufficient agglomerating effect, so it is difficult to perform reliable mist collection in combination with a cyclone separator. It was hot.

[Means for solving problems]

The present invention has been made in view of such problems, and is a mist mist 2 that is introduced into a cyclone separator 5 through a hood 3 and a duct 4 together with surrounding air, and a condenser 6 is provided in the duct 4. In the collection device, the aggregator 6 is composed of an edge frame 6A for fixing to the duct 4, a fibrous body attachment member 6B, and a raised fiber body 6C, and the raised fiber body 6C has its airflow upstream end connected to the This mist trap is characterized in that the fibrous body attachment member 6B is fixed and then extended long in the downstream direction of the airflow, leaving the downstream side free to flow in the airflow, and a large number of the raised fibrous bodies 6C are arranged at such a density that they lightly touch each other. It is a collection device.

[Effect]

According to such a mist collection device, the raised fiber body 6
Since C extends in the airflow direction of the duct 4, the mist 2 sucked in from the hood 3 and attached to the raised fiber body 6C grows smoothly in the airflow direction. Also,
The raised fiber body 6C has its airflow upstream end fixed to the fiber body attachment member 6B, and is then extended in the downstream direction of the airflow, leaving the downstream side free to flow in the airflow, so that the raised fiber body 6C is not swayed by the airflow. Shake. This creates a large turbulence in the airflow, making it easier for the mist 2 to adhere to the raised fiber body 6C, promoting the growth of the attached mist, and easily dispersing the droplets 7 from the downstream end of the raised fiber body 6C. It becomes blown away. Furthermore, raised fiber body 6C
Since a large number of the fibers are arranged at such a density that they lightly touch each other, it is possible to maintain the oscillating motion of the raised fiber body 6C and to make the ventilation resistance appropriate. Moreover, since the aggregator 6 is composed of an edge frame 6A for fixing to the duct 4, a fiber vertical body attachment member 6B, and a raised fiber body 6C,
The structure is inexpensive and can be easily attached to and removed from the duct 4.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. In FIG. 1, reference numeral 1 denotes a mist generating source such as a lathe or a drilling machine, which generates mist 2 such as cutting oil. Mist 2, along with the surrounding air, hood 3,
It is introduced into a cyclone separator 5 via a duct 4. A condenser 6 is provided in the duct 4,
A coarse mist 7 is generated in the rear region of the condenser 6. A drain reservoir 9 with a discharge valve 8 is provided at the lower end of the cyclone separator 5.
10 is a fan, 11 is a fan drive motor, and 12 is an exhaust port. Note that the arrows in the figure indicate the airflow direction, with diagonal arrows indicating contaminated airflow and self-arrows indicating clean airflow.

FIG. 2 is a longitudinal cross-sectional side view of the condenser 6, and FIG. 3 is a perspective view of the condenser 6 alone. The aggregator 6 includes an edge frame 6A for fixing to the duct 4, a fibrous body attachment member consisting of a wire mesh 6B attached to this edge frame 6A, and a raised fiber body 6C planted (tied) on this attachment member 6B. Consists of. The end of the fibrous body 6C on the side opposite to the wire mesh is left free so that it can flow in the airflow.
The fibrous bodies 6C are preferably twisted threads such as wool, and are arranged at such a density that air can easily flow between them (to the extent that they touch each other lightly). Excessive density increases ventilation resistance, while underdensity results in a reduction in the cohesive effect due to blow-through.

According to such a mist collection device, the raised fiber body 6
Since C extends in the airflow direction of the duct 4, the mist 2 sucked in from the hood 3 and attached to the raised fiber body 6C grows smoothly in the airflow direction. Also,
The raised fiber body 6C has its airflow upstream end fixed to the fiber body attachment member 6B, and is then extended in the downstream direction of the airflow, leaving the downstream side free to flow in the airflow, so that the raised fiber body 6C is not swayed by the airflow. Shake. This creates a large turbulence in the airflow, making it easier for the mist 2 to adhere to the raised fiber body 6C, promoting the growth of the attached mist, and easily dispersing the droplets 7 from the downstream end of the raised fiber body 6C. It becomes blown away. Furthermore, raised fiber body 6C
Since a large number of the fibers are arranged at such a density that they lightly touch each other, it is possible to maintain the oscillating motion of the raised fiber body 6C and to make the ventilation resistance appropriate. With these, the aggregation effect of the aggregator 6 can be made extremely high. Moreover, since the condenser 6 is composed of an edge frame 6A for fixing to the duct 4, a fibrous body attachment member 6B, and a raised fibrous body 6C, it can be easily attached to and removed from the duct 4 with a simple configuration. Can be manufactured cheaply.

〔Effect of the invention〕

According to the present invention, the mist collection device can significantly enhance the coagulation effect of the condenser 6 and perform reliable mist collection when combined with the cyclone separator 5, and can be easily attached to and removed from the duct 4 with an inexpensive configuration. can be provided.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the mist collection device of the present invention, FIG. 2 is an enlarged sectional view of a condenser portion of the mist collection device, and FIG. 3 is an enlarged perspective view of the condenser alone. 2...Mist, 3...Hood, 4...Duct,
5...Cyclone separator, 6...Aggregator, 6A...
... Edge frame, 6B... Fibrous body attachment member, 6C... Raised fiber body, 7... Mist droplets.

Claims (1)

[Claims] 1 In a mist collection device in which mist 2 is introduced from a hood 3 together with surrounding air into a cyclone separator 5 via a duct 4, and a condenser 6 is provided in the duct 4, the condenser 6 is connected to the duct 4. It is composed of an edge frame 6A for fixing, a fibrous body attachment member 6B, and a raised fiber body 6C. A mist collection device characterized in that a large number of raised fiber bodies 6C are arranged with a density that allows them to lightly touch each other, by extending the fibers long and leaving the downstream side free to flow in the airflow.