JPH06751Y2 - Water injection nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a water injection nozzle used in a wet continuous dust collector.

[Conventional technology]

Conventionally, as shown in FIG. 5, a water injection nozzle used in a wet continuous falling dust collecting apparatus is provided with a large number of water injection nozzles each having a pipe welded to a circular vertical portion of the collection funnel to collect dust accumulated on an inclined portion of the collection funnel. It is a device that can be carried by hand by rinsing it with water and collecting the falling dust.

[Problems to be solved by the invention]

As described above, since it is an important factor that this device can be carried by hand, the steel plate thickness of the circular vertical portion (1) of the collecting funnel (3) is as thin as 2 mm or less. Therefore, it is extremely difficult to tangentially weld (15) the pipe-shaped water injection nozzle (12) on the circumference of the thin steel plate. Even if welding (15) can be stopped, θ (13) will increase and dead zone (14) that cannot be washed with water will be on the inclined part (2) of the collecting funnel (3).
Occurs. In order to eliminate this dead zone (14), the number of water injection nozzles (12) attached will increase and the amount of water used will also increase, which will increase the storage capacity of the water tank (7 ') and at the same time increase the weight of the entire device. This makes it difficult to carry. Further, there is a problem that the dust remaining in the dead zone (14) causes a large variation in the analysis value.

[Means for solving problems]

The present invention has been made to solve the above-mentioned problems, and filters falling dust collected by contact between a collecting funnel composed of a circular vertical portion and an inclined portion, and water in the collecting funnel. In order to separate, a dust introducing arm provided to guide a plurality of filter bottles disposed under the collecting funnel sequentially at a predetermined time and at a predetermined pitch, and the dust introducing arm and the plurality of filter bottles. Vertical direction of the bottom surface of the solid body having an inner peripheral surface that matches the circumference of the circular vertical portion of the collecting funnel used in a wet continuous falling dust collecting device that is equipped with a water tank for storing filtered wastewater The present invention provides a water injection nozzle characterized in that a through hole is provided in a tangential direction of a circumference of a collecting funnel.

[Action]

Since the present invention is configured as described above, the water injection nozzle of the present invention can be easily and accurately installed in the tangential direction of the circular vertical portion of the collecting funnel, so that the dust accumulated on the inclined part of the collecting funnel has a minimum amount of water. As a result, the maximum area can be washed, the weight of the entire device of the present invention can be reduced, and the variation in the dust analysis value can be reduced to ensure an accurate value.

〔Example〕

Circular vertical part of the collecting funnel (3) (1) Material: SUS304 steel plate thickness 1.5mm, radius 150mm Water injection nozzle (12) material: SUS304 solid body (8) Shape: inner surface radius of curvature 150mm , Length 60 mm, width 5 mm and 25 mm, thickness 15 mm, vertical direction (9) and circumferential tangential direction (10) through hole (11) diameter 4 mmφ, through hole (11) discharge hole width 20 mm, diameter 8 mm Oval type A 4 mmφ hose was connected to the through hole in the vertical direction (9).
This water injection nozzle (12) is tangentially θ = 1 at six equal intervals in a circular shape below the circular vertical part (1) of the collecting funnel (3).
It was attached by welding (15) at 5 ° (13). Water for cleaning has no pressure.
At 5 kg / cm ² , the total amount of water used was 200 cc / min, and the dead zone (14) of the inclined part (2) of the collection funnel (3) did not occur.

[Effect of device]

Since the device of the present invention has the above structure, the effects shown in Table 1 are obtained.

[Brief description of drawings]

FIG. 1 is a plan view of a collecting funnel of the device of the present invention, FIG. 2 is a front view of a water injection nozzle of the device of the present invention, FIG. 3 is a sectional view showing the mounting mode of FIG. 2, and FIG. Schematic overview of the device,
FIG. 5 is a cross-sectional view showing an attachment mode of a conventional water injection nozzle. In the drawing, 1 ... Circular vertical part 2 ... Inclined part 3 ... Collection funnel 4 ... Falling dust 5 ... Filter bottle 6 ... Dust introduction arm 7 ... Inner peripheral surface 7 '... Water tank 8 ... Solid body 9 ... Vertical direction (10 )… Circumferential tangential direction (11)… Through hole (12)… Water injection nozzle (13)… θ (14)… Dead zone (15)… Welding

Claims (1)

[Scope of utility model registration request] 1. A collecting funnel (3) comprising a circular vertical portion (1) and an inclined portion (2), and falling dust (4) collected by contact with water in the collecting funnel (3). And a dust introduction arm (6) provided to guide a plurality of filtration bottles (5) arranged at the lower part of the collection funnel (3) in order at a predetermined time and at a predetermined pitch in order to separate them by filtration, A water tank in which the dust introduction arm (6) and a plurality of filtration bottles (5) are installed, and the filtration wastewater is stored in the lower part
An inner peripheral surface matching the circumference of the circular vertical portion (1) of the collecting funnel (3) used in the wet continuous falling dust collecting device consisting of (7)
A water injection nozzle characterized in that a through hole (11) is provided from a vertical direction (9) of a bottom surface of a solid body (8) having (7) to a circumferential tangential direction (10) of a collecting funnel (3).