U.S. patent application number 09/976266 was filed with the patent office on 2002-06-20 for water cooling stretch for cooling wire rod or small sections of steel.
Invention is credited to Hellenbrandt, Rainer, Kuppers, Klaus, Meyer, Meinert, Plociennik, Uwe.
Application Number | 20020074699 09/976266 |
Document ID | / |
Family ID | 26007363 |
Filed Date | 2002-06-20 |
United States Patent
Application |
20020074699 |
Kind Code |
A1 |
Hellenbrandt, Rainer ; et
al. |
June 20, 2002 |
Water cooling stretch for cooling wire rod or small sections of
steel
Abstract
A water cooling stretch for cooling rolling stock coming from a
roll train has several parallel and adjacently positioned cooling
pipes having different diameters matching differently sized rolling
stock. The cooling pipes are made of individual cooling pipe
sections arranged successively in a straight cooling pipe
arrangement, respectively. A cooling water supply of individual
cooling head nozzle elements supplies the cooling water to the
cooling pipe sections. Valve arrangements for controlling the
supply of cooling water are provided. The cooling pipe arrangement
has individual water box modules arranged between the cooling pipe
sections, and the cooling pipe sections have inlet and outlet
openings that open into the water box modules. The water box
modules are fastened to a common water supply line moveable
horizontally and transversely to a movement path of the rolling
stock for moving the cooling pipe arrangements into and out of the
movement path, as needed.
Inventors: |
Hellenbrandt, Rainer;
(Willich, DE) ; Kuppers, Klaus; (Erkrath, DE)
; Meyer, Meinert; (Erkrath, DE) ; Plociennik,
Uwe; (Ratingen, DE) |
Correspondence
Address: |
FRIEDRICH KUEFFNER
PATENT AND TRADEMARK ATTORNEY
SUITE 1921
342 MADISON AVENUE
NEW YORK
NY
10173
US
|
Family ID: |
26007363 |
Appl. No.: |
09/976266 |
Filed: |
October 12, 2001 |
Current U.S.
Class: |
266/134 |
Current CPC
Class: |
B21B 45/0224
20130101 |
Class at
Publication: |
266/134 |
International
Class: |
C21D 001/62 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 13, 2000 |
DE |
100 50 952.5 |
Feb 3, 2001 |
DE |
101 04 896.3 |
Claims
What is claimed is:
1. A water cooling stretch for cooling rolling stock coming form a
roll train, the water cooling stretch comprising: several parallel
and adjacently positioned cooling pipes having different diameters
matching different cross-sections of the rolling stock and
comprised of individual cooling pipe sections arranged successively
to form a straight cooling pipe arrangement, respectively; a
cooling water supply comprising individual cooling head nozzle
elements, configured to supply the cooling water to the individual
cooling pipe sections, and further comprising valve arrangements
configured to control the supply of cooling water; wherein the
cooling pipe arrangements comprises individual water box modules
arranged between the cooling pipe sections and wherein the
individual cooling pipe sections have inlet openings and outlet
openings that open into the water box modules; a common support on
which the water box modules are fixedly connected, wherein the
common support is configured to be moveable horizontally and
transversely to a movement path of the rolling stock in order to
move the water box modules and the cooling pipe sections into and
out of the movement path of the rolling stock, as needed; wherein
the common support is a water supply pipe.
2. The water cooling stretch according to claim 1, wherein: each
one of the water box modules receives individual ones of the
cooling head nozzle elements so as to be exchangeably arranged in
the water box modules between the inlet opening and the outlet
opening of the cooling pipe sections connected to the water box
modules; each one of the water box modules receives one of the
valve arrangements comprising high-speed switching valves
correlated with the cooling head nozzle elements, wherein the
cooling head nozzle elements are configured to be connected to the
high-speed switching valves.
3. The water cooling stretch according to claim 2, wherein a first
one and a last one of the water box modules located at a beginning
and an end of the cooling water stretch comprise exchangeable blow
nozzle elements arranged downstream of the cooling head nozzle
elements in the first and last water box modules.
4. The water cooling stretch according to claim 3, wherein the
water box modules comprise adjusting elements configured to adjust
the cooling head nozzle elements and the blow nozzle elements.
5 The water cooling stretch according to claim 3, wherein the water
box modules comprise pivotable and lockable covers.
6. The water cooling stretch according to claim 5, wherein the
covers have clamping elements configured to secure the cooling head
nozzle elements and the blow nozzle elements.
7. The water cooling stretch according to claim 2, wherein the
water box modules comprise adjusting elements configured to adjust
the cooling head nozzle elements.
8. The water cooling stretch according to claim 2, wherein the
water box modules comprise pivotable and lockable covers.
9. The water cooling stretch according to claim 8, wherein the
covers have clamping elements configured to secure the cooling head
nozzle elements.
10. The water cooling stretch according to claim 1, wherein the
water supply device comprises pneumatic or hydraulic high-speed
flaps arranged in the water box modules and connected to the water
supply pipe.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a water cooling stretch for cooling
rolling stock such as wire or small sections of steel coming from
by a roll train, wherein the water cooling stretch comprises
several adjacently positioned cooling pipes which have different
inner diameters matching the different cross-sections of the
rolling stock and which form a cooling pipe arrangement,
respectively, comprised of several pipe sections arranged in a
straight succession. They are arranged together on a support,
movable horizontally and transversely to the movement path of the
rolling stock, and can be moved as needed into and out of the
movement path, wherein the cooling water supply to the individual
cooling pipe sections is realized by cooling head nozzles and
correlated inflow-controllable valve arrangements.
[0003] 2. Description of the Related Art
[0004] Devices of the aforementioned kind are described, for
example, in German patent application DE 199 60 638, not published
as of the priority date of the instant application for patent. This
document describes a water cooling stretch comprised of several
parallel and adjacently positioned cooling pipes with different
inner diameters arranged on a transversely movable support
configured for moving the cooling pipes into and out of the
movement path of the rolling stock. These cooling pipes are
arranged with the support in a water box and have a common cooling
head arranged at its inlet openings and comprising several
correspondingly sized nozzles for the cooling water correlated with
the cooling head. These nozzles have arranged upstream thereof a
rotary slide valve which supplies a nozzle which is currently in a
working position with cooling water, respectively. Instead of this
rotary slide valve, as explained in more detail later on in this
document, other control devices, for example, regulating flaps,
slide valves or individual valves can be used. This configuration
has the disadvantage that the exchange of cooling pipes and of the
cooling heads and control devices connected therewith entails a
considerable constructive expenditure and requires experienced
personnel for the exchange procedure.
SUMMARY OF THE INVENTION
[0005] It is an object of the present invention to decrease the
constructive expenditure for water cooling stretches of the
aforementioned kind and to simplify their operation.
[0006] In accordance with the present invention, this is achieved
in that the inlet and outlet openings of the individual cooling
pipe sections of the cooling pipe arrangement open into independent
water box modules which together are arranged fixedly on a water
supply pipe which forms the horizontally movable support.
[0007] Based on the discussed prior art, which is an application
filed by the instant applicant, according to which a series of
cooling pipe sections is arranged successively in a common cooling
water box and cooling heads, which are secured by threaded securing
elements, are connectable with the inlet openings of the individual
cooling pipe sections, wherein the water supply of the cooling
heads is realized by separate supply pipes and by high-speed
switching valves provided external to the water box, the
aforementioned object is solved according to the invention in that
the inlet and outlet openings of the individual pipe sections of
the cooling pipe arrangement open into individual water box modules
which are arranged together fixedly on a water supply pipe which
forms a horizontally movable support. In this connection, in each
one of the water box modules individual independent cooling head
nozzle elements can be used which are exchangeable between the
openings of the respective pipe sections of the cooling pipe
arrangement and connectable with correlated high-speed switching
valves. In the water box modules arranged at the beginning and the
end of the water cooling stretch it is possible to provide blow
nozzle elements, arranged so as to be exchangeable also, upstream
or downstream of the cooling head nozzle elements, and, moreover,
these water box modules can comprise adjusting or control elements
for adjusting the cooling head nozzle elements and the blow nozzle
elements. The water box modules have expediently a pivotable and
lockable cover in which clampable securing elements for the cooling
head nozzle elements and the blower nozzle elements are arranged.
Moreover, in the water box modules pneumatically or hydraulically
actuated high-speed switching flaps can be provided which are
connected with the water supply device.
[0008] This configuration according to the invention of the water
cooling stretch makes it possible to demount and exchange the
cooling head nozzle elements provided within the individual water
box modules and also the blow nozzle elements without difficulty.
Also, the pipe sections arranged between the water box modules can
be demounted and exchanged without problem. Since the individual
cooling pipe arrangements can be moved by transverse movement of
the support pipe into and out of an operating position and each one
can be individually supplied with cooling water by the high-speed
switching valves, such exchange operations require only short
interruptions of the rolling operation supplying the rolling
stock.
BRIEF DESCRIPTION OF THE DRAWING
[0009] In the drawing:
[0010] FIG. 1 is a water cooling stretch in a longitudinal section
viewed from the side;
[0011] FIG. 2 is a plan view onto a portion of the water cooling
stretch in a horizontal section on an enlarged scale; and
[0012] FIG. 3 is a section along the line A-A of FIG. 1 on an
enlarged scale.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] In FIG. 1 it is shown that water box modules WKM, in the
disclosed embodiment four such modules, are positioned at a spacing
to one another on the water supply pipe WZR and are fixedly
connected thereto in a way not illustrated in more detail. The
water supply pipe WZR rests with slide supports ST, horizontally
moveable in the direction of double arrow P (see FIG. 2), on
stationary foundations F and can be moved in a way not illustrated
by means of cylinder devices or other adjusting or advancing
elements in a horizontal plane. Cooling pipe sections are arranged
at a spacing adjacent to one another in a horizontal plane at the
neighboring water box modules WKMa, WKMb, WKMc, and WKMd. In the
illustrated embodiment three such pipe sections, respectively, are
provided. In FIG. 2, they are identified by KRA1, KRA2, KRA3. They
are secured by the sidewalls SW of the respective water box module
WKM. They have different inner diameters d1, d2, d3 and project
with their openings M1, M2, M3 into the water box module WKM.
[0014] High-speed switching valves SSV1, SSV2, SSV3 are arranged in
the water box modules (compare FIG. 3) and are supported on the
water supply pipe WZR. Cooling head nozzle elements KDE1, KDE2,
KDE3 can be placed in an exchangeable way onto the switching valves
and can be fastened, in a way not illustrated, by means of
pneumatically or hydraulically actuated cylinder devices, springs,
wedges or even with screws in a detachable way, or, as illustrated,
can be clamped by a clamping element SP which is connected to the
cover AD that is pivotably connected to the water box module WKM.
In the water box modules WKMa and WKMb at the beginning and the end
of the water cooling stretch, blow nozzle elements BLE1, BLE2, BLE3
can be used in addition to the cooling head nozzle elements KDE1
and KDE2 and are arranged upstream or downstream thereof. They are
also exchangeably mounted and can be secured in the same way as
described above for the cooling head nozzle elements KDE. These
cooling head nozzle elements and the blow nozzle elements, after
having been mounted, can be adjusted in a way not illustrated by
means of threads and guides or clamping nuts against stops.
Moreover, pneumatically or hydraulically actuated high-speed
switching flaps for suppressing pressure peaks of the water supply
pipe WZR can be arranged in the water box modules WKM.
[0015] While specific embodiments of the invention have been shown
and described in detail to illustrate the inventive principles, it
will be understood that the invention may be embodied otherwise
without departing from such principles.
* * * * *