CONTINUOUS GALVANIZING APPARATUS FOR MULTIPLE RODS

Abstract

A continuous galvanizing apparatus for multiple rods. The apparatus includes a kettle for heating and retaining a liquid therein with at least a portion of the kettle having an open top. A trough assembly retains liquid therein. The trough assembly is arranged above the kettle open top above the liquid level, with the trough assembly having at least one lower chamber within the kettle below a level of the liquid in the kettle. A pump in the lower chamber draws liquid from the kettle to the trough assembly. A plurality of entry openings are provided in the trough assembly along with a plurality of exit openings opposed to and aligned with the entry openings. Adjacent tubes in the trough assembly are aligned with the plurality of entry and exit openings.

Claims

1. A continuous galvanizing apparatus for multiple rods, which apparatus comprises: a kettle for heating and retaining a liquid therein, at least a portion of said kettle having an open top; a trough assembly for retaining said liquid therein, said trough assembly having a trough arranged above said kettle open top, said trough assembly having at least one lower chamber within said kettle below a level of said liquid in said kettle; a pump in said lower chamber to draw said liquid from said kettle to said trough assembly; and a plurality of entry openings in said trough assembly and a plurality of exit openings in said trough opposed to and aligned with said entry openings.

2. The continuous galvanizing apparatus for multiple rods as set forth in claim 1 including a plurality of adjacent tubes in said trough assembly aligned with said plurality of entry openings and said plurality of exit openings.

3. The continuous galvanizing apparatus for multiple rods as set forth in claim 2 wherein each of said plurality of adjacent tubes includes a plurality of slots to permit passage of said liquid.

4. The continuous galvanizing apparatus for multiple rods as set forth in claim 1 wherein each said entry opening includes a tapered entry guide.

5. The continuous galvanizing apparatus for multiple rods as set forth in claim 1 wherein each said exit opening includes a tapered exit guide.

6. The continuous galvanizing apparatus for multiple rods as set forth in claim 4 including an angled deflector beneath said tapered entry guides.

7. The continuous galvanizing apparatus for multiple rods as set forth in claim 5 including an angled deflector beneath said tapered exit guides.

8. The continuous galvanizing apparatus for multiple rods as set forth in claim 1 wherein said rods are metal rebar rods.

9. The continuous galvanizing apparatus for multiple rods as set forth in claim 2 wherein each of said plurality of adjacent tubes is cylindrical and parallel to each other.

10. The continuous galvanizing apparatus for multiple rods as set forth in claim 1 including an overflow chamber separated from said trough by a weir and wherein said overflow chamber is in fluid communication with said kettle.

11. The continuous galvanizing apparatus for multiple rods as set forth in claim 1 wherein said liquid is liquid zinc or liquid zinc alloy.

12. A continuous galvanizing apparatus for multiple rods, which apparatus comprises: a kettle for heating and retaining a liquid therein, at least a portion of said kettle having an open top; a trough assembly for retaining said liquid therein, said trough assembly having a trough arranged above said kettle open top; a pump to draw liquid from said kettle to said trough assembly; a plurality of entry openings in said trough and a plurality of exit openings in said trough opposed to and aligned with said entry openings; and a plurality of adjacent tubes in said trough aligned with said plurality of entry openings and said plurality of exit openings.

13. The continuous galvanizing apparatus for multiple rods as set forth in claim 12 wherein each of said plurality of adjacent tubes includes a plurality of slots to permit passage of said liquid.

14. The continuous galvanizing apparatus for multiple rods as set forth in claim 12 wherein each said entry opening includes a tapered entry guide.

15. The continuous galvanizing apparatus for multiple rods as set forth in claim 12 wherein each said exit opening includes a tapered exit guide.

16. The continuous galvanizing apparatus for multiple rods as set forth in claim 14 including an angled deflector beneath said tapered entry guide.

17. The continuous galvanizing apparatus for multiple rods as set forth in claim 15 including an angled deflector beneath said tapered exit guide.

18. The continuous galvanizing apparatus for multiple rods as set forth in claim 12 wherein said rods are metal rebar rods.

19. The continuous galvanizing apparatus for multiple rods as set forth in claim 12 wherein each of said plurality of adjacent tubes is cylindrical and parallel to each other.

20. The continuous galvanizing apparatus for multiple rods as set forth in claim 12 including an overflow chamber separated from said trough by a weir and wherein said overflow chamber is in fluid communication with said kettle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1 is a top view of a continuous galvanizing apparatus for multiple rods constructed in accordance with the present invention;

[0017] FIG. 2 is a sectional view taken along section line 2-2 of FIG. 1;

[0018] FIG. 3 is a sectional view taken along section line 3-3 of FIG. 1;

[0019] FIG. 4 is an enlarged, partial view of a portion of the apparatus shown in FIG. 3; and

[0020] FIG. 5 is a sectional view taken along section line 5-5 of FIG. 4.

DETAILED DESCRIPTION OF THE INVENTION

[0021] The embodiments discussed herein are merely illustrative of specific manners in which to make and use the invention and are not to be interpreted as limiting the scope.

[0022] While the invention has been described with a certain degree of particularity, it is to be noted that many modifications may be made in the details of the invention's construction and the arrangement of its components without departing from the scope of this disclosure. It is understood that the invention is not limited to the embodiments set forth herein for purposes of exemplification.

[0023] Referring to the drawings in detail, FIG. 1 is a top view of a continuous galvanizing apparatus 10 for multiple rods.

[0024] The apparatus 10 contains a liquid reservoir or kettle 12 for heating and retaining a liquid therein.

[0025] FIG. 2 illustrates a view taken along section line 2-2 of FIG. 1 while FIG. 3 illustrates a view taken along section line 3-3 of FIG. 1. The apparatus 10 includes a liquid reservoir or kettle 12 acting as a storage container for the liquid. The kettle 12 is a substantially elongated container which retains and heats a liquid therein. In a preferred embodiment, the liquid is heated liquid zinc or heated zinc and aluminum alloy.

[0026] As seen in FIG. 1, a portion 14 of the top of the kettle 12 may be closed although at least a portion 16 of the kettle 12 contains an open top.

[0027] A trough assembly is arranged above the open top portion 16 of the kettle 12. The trough assembly includes a trough 20 arranged above an open top of the kettle. Braces or beams support the trough 20 above the kettle.

[0028] The trough assembly includes at least one lower chamber 26 which is at least partially within the kettle 12 and at least partially below a level of liquid in the kettle 12.

[0029] In the embodiment shown in FIG. 2, two lower chambers 26 are utilized although a different number may be used within the spirit and scope of the present embodiment.

[0030] As will be explained, the lower chamber 26 is substantially fluid tight with an open top in fluid communication with the trough 20. In addition, the lower chamber 26 has a series of lower pump inlet openings which operate in conjunction with pumps 30 (to be described). Accordingly, liquid in the trough assembly will initially fill the lower chamber 26 and, as the liquid level rises, thereafter fill the trough 20.

[0031] Arrow 18 in FIGS. 1 and 2 illustrates the direction that the rebar (not seen) will travel entering into and passing through the apparatus 10.

[0032] As best seen in FIGS. 2, 3, and 4, at least one pump 30 in each lower chamber 26 will draw liquid from the kettle 12 into the lower chamber 26, as shown by arrows 32. In the embodiment shown, three pumps 30 are utilized. Motors 22 connected to the pumps 30 by shafts 24 drive the pumps 30. The motors 22 may be located above the kettle 12.

[0033] When the pumps 30 are turned off, zinc is permitted to drain from the lower chamber 26 back through the lower pump inlet openings to the kettle 12.

[0034] As seen in FIGS. 1, 2, and 5, a plurality of entry openings 40 are provided in the trough 20. The entry openings 40 pass through a wall of the trough 20. In the embodiment shown, each entry opening 40 has a tapered entry guide 42 extending from the trough. Accordingly, the entry guide 42 acts as a guide for the incoming metal rods or rebar (not shown).

[0035] The trough 20 also includes a plurality of exit openings 50. In the embodiment shown, a tapered exit guide 52 extends from each exit opening 50 and acts as a guide for the metal rods or rebar exiting the trough assembly.

[0036] In the trough 20 are a plurality or series of adjacent tubes 60. In the embodiment shown, the tubes 60 are cylindrical and substantially parallel to each other although other arrangements are possible. The tubes 60 extend in a substantially transverse direction within the elongated trough 20. The adjacent tubes 60 are aligned with the plurality of entry openings 40 and aligned with the exit openings 50 so that they provide a guide for the metal rods or rebar passing therethrough.

[0037] Each of the tubes has a plurality of slots 64 to permit passage of liquid from the trough 20 into and out of the tubes 60.

[0038] The tapered entry guides 42 are above the open top 16 of the kettle 12. Accordingly, liquid from the trough 20 may pass through the entry openings 40, through the tapered entry guides 42, and thereafter fall by gravity into the open top of the kettle. A series of angled deflectors 66 reduce splashing and turbulence of the liquid as it moves toward the kettle.

[0039] Likewise, the tapered exit guides 52 are above the open top of the kettle 12. A series of exit angled deflectors 70 reduce splashing and turbulence of the liquid as it moves toward the kettle.

[0040] A drain or drains 54 assists in permitting liquid to return to the kettle 12. Accordingly, the liquid moves in a continuous loop from the kettle 12 into the lower chamber of the trough assembly, into the trough 20, into the adjacent tubes where the rebar is galvanized, over a weir 62, and back to the kettle 12.

[0041] Returning to a consideration of FIGS. 2 and 5, an angled deflector or deflectors 56 are positioned beneath the tapered entry guides.

[0042] Likewise, an angled deflector or deflectors 58 are positioned beneath the tapered exit guides.

[0043] Returning to a consideration of FIGS. 1, 3, and 4, an overflow chamber 48 is separated from the trough 20 by the weir 62.

[0044] Whereas, the invention has been described in relation to the drawings attached hereto, it should be understood that other and further modifications, apart from those shown or suggested herein, may be made within the scope of this invention.