JPS6040593Y2 - Suction device in plating equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a suction device for a metal plating device, and more particularly, to a suction device for effectively discharging gas, mist, etc. released from a plating tank or the like to the outside of the system.

In general, metal plating equipment consists of polishing equipment, pre-treatment equipment, plating equipment (in a narrow sense), and post-treatment equipment, in the order of plating work.・Mist or dust is generated.

Generally, the above-mentioned valuable gases are also harmful gases, and discharging or recovering valuable gases (harmful gases) and mist outside the system is important for pollution prevention measures and health management of plating workers.
This is extremely important for safety management, resource saving, energy saving, and closing the plating process.

Conventional exhaust devices for valuable gases, etc. include, for example, a so-called air curtain type exhaust device in which an exhaust hood is installed along the wall of a plating tank and air is supplied from one tank wall;
There are some types that have an exhaust hood on the side of the plating tank and an exhaust gas suction port at one end of the exhaust hood.
In both cases, the exhaust gas suction port is arranged only in one direction with respect to the plating tank, which not only lacks the ability to uniformly suck the exhaust gas from the plating tank, but also has a complicated exhaust system structure. In addition, when the material to be plated is transferred to the processing tank of each plating device, there are problems such as contact failure of the power supply device due to dripping of the plating solution and contamination, which impairs work operability and environmental friendliness. there were.

The purpose of the present invention is to eliminate the drawbacks of the conventional devices and provide a suction device that can uniformly and effectively discharge valuable gas etc. over the entire area of the plating device. An exhaust hood is arranged along the tank wall, and the suction pipe is connected to the exhaust hood so that the suction pipe is arranged along the opposing tank wall, and further in the longitudinal direction of the suction pipe. It is characterized in that suction holes are appropriately arranged along the length.

That is, the suction device of the present invention eliminates the drawbacks of the conventional device which exhausts air by suctioning on one side, and has the effect of uniformly suctioning valuable harmful gases, mist, etc. above the liquid level of the plating apparatus.

An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a pair of suction pipes 2 are disposed above a rectangular parallelepiped processing tank 1 toward the opposing tank walls. There is.

The suction pipe 2 has slots for exhaust gas suction along its longitudinal direction and over its entire length, and on both sides thereof.
A long hole) 3 is open.

These two suction pipes 2 are connected via an exhaust hood 4 to a duct 5 connected to an exhaust device (described later).

The slot 3 provided on both sides of the suction pipe 2 is effective when a plurality of processing tanks 1 are connected in series, but the slot 3 provided only on one side for a single processing tank 1. All you have to do is apply it.

Furthermore, when the amount of valuable gas generated is small or when the generation location is uneven, the slots 3 do not need to be provided over the entire length of the suction pipe 2, and may be opened unevenly on one side or in the center.

In the above embodiment, the connecting part 6 is constructed of an insertion joint, so that the suction pipe 2 can be easily attached and removed, and the longitudinal slide of the suction pipe 2 can be adjusted. The processing tank 1 has the advantage of being able to be arranged in a way that suits the situation in which it occurs, and also serves as a cover for the power supply device.

In FIG. 1, 7 is a cleaning port, 8 is a damper, 9 is a material to be plated, and 10 is a leg that is attached as necessary, and is supported by the side wall of the processing tank 1, for example.

Further, in FIG. 2, 11 is a support column, and 12 is a drain hole.

The cross-sectional shape of the suction tube 2 is rectangular as shown in FIG. 3, and its cross-sectional area can be made sufficiently large.

Therefore, in FIGS. 1 and 2, valuable gases generated from the processing tank 1 of the plating apparatus are uniformly and uniformly sucked and removed over the entire area of the processing tank 1 as shown by the arrows.
It is transferred through the duct 5 to the ventilation device.

Fig. 4 shows an embodiment in which the suction device of the present invention is applied to a galvanizing device for iron materials. ).

In addition, in FIG. 4, 14 is a nitric acid immersion process, 15 is a PR electrolytic process, 16 is an acid immersion process, 17 is a hydrochloric acid storage tank, 18 to 20 are all ventilation devices, and the ventilation device 19 (and 20) is Whirlpool pump 19a.

20a, packed tower type cleaning towers 19b, 20b, and sirocco fans 19C, 20c.

Further, in FIG. 5, 21 indicates a building.

In the above embodiment, the suction pipe 2 was arranged in a direction perpendicular to the direction of transfer of the material to be plated, but it may also be arranged in a direction parallel to the direction of transfer, or it may be arranged along the entire area of the plating apparatus. This will give you even better suction effects.

Although the height and position of the suction tube 2 can be set as appropriate, it is best to install it close to the liquid level of the processing tank 1, which makes the suction device more compact and improves the operability of plating. At the same time, valuable gases, mist, etc. can be quickly suctioned and removed, and therefore there is an advantage that the risk of them being inhaled into the human body is reduced.

The suction hole is preferably slot-shaped as in the embodiment, but it may also be a porous tube with a large number of circular holes, and if desired, a partition wall may be provided around the suction tube. Of course.

As mentioned above, the device of the present invention has a simple and compact structure, and can effectively suck and remove valuable gas/mist, harmful gas/mist, etc. generated from plating equipment or similar equipment, thereby saving resources. This has great benefits in terms of pollution prevention, operator health management, etc., and because it is evenly sucked in, it has the effect of improving the finish and increasing the product value without adversely affecting the product. There is.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is an enlarged sectional view taken along line I-I in FIG. 1, and FIG. 4 is a plan view in use. FIG. 5 is a side view thereof. 1... Processing tank, 2... Suction pipe, 3...
...Slot, 4...Exhaust hood, 5...
... Duct, 6 ... Connection part, 11 ... Support column, 12 ... Drain extraction, 3 ... Galvanizing process, 14 ... ...Nitric acid immersion step, 8-20...Exhaust device.

Claims (1)

[Scope of claims for utility model registration] 1. Valuable harmful gases generated from equipment for metal plating, etc.
At a position where mist, etc. is locally exhausted by a suction device connected to an exhaust device, an exhaust hood is disposed along the tank wall of the plating device, and a suction pipe is disposed along the opposing tank wall. A suction device for a plating apparatus, characterized in that the suction pipe is connected to the exhaust hood, and suction holes are appropriately arranged along the longitudinal direction of the suction pipe. 2. The suction device according to claim 1, wherein the exhaust hood is disposed along the transfer direction of the material to be plated. 3. Utility model registration claim 1, in which the suction pipe is arranged in a direction perpendicular to the direction of transport of the material to be plated.
Suction device as described in section. 4. The suction device according to claim 1, wherein the suction pipe is disposed throughout the entire area of the plating device.