KR20020029620A - Water cooling stretch for the cooling of rolled wire or small sections - Google Patents

Abstract

PURPOSE: A water cooling stretch for cooling wire rod or small sections of steel is provided to decrease the constructive expenditure for water cooling stretches of the aforementioned kind and to simplify their operation. This is invention is characterized 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. CONSTITUTION: 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(WZR) sections arranged successively in a straight cooling pipe arrangement, respectively. A cooling water supply of individual cooling head nozzle elements(KDE1,2,3) 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(WKM a,b,c,d) 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.

Description

WATER COOLING STRETCH FOR THE COOLING OF ROLLED WIRE OR SMALL SECTIONS}

The present invention comprises cooling tubes having different inner diameters adapted to the cross section of the rolled stock and located adjacent to each other, each consisting of a plurality of tube sections arranged in a straight line and commonly transverse to the travel path of the rolled stock. Direction, the cooling water supply for each cooling tube section forms a cooling tube arrangement disposed on the carrier which is horizontally displaceable in the direction and can be alternately inserted into and discharged out of the movement path. A water-cooled stretch for cooling a rolled stock exiting a rolling train, such as wire or small steel, made through a nozzle and through valve devices capable of controlling the feed fitted to the nozzle.

DE 199 60 638, which has not been published yet, describes this type of water cooling stretch. The stretch is arranged in parallel adjacent each other on a transversely displaceable carrier and consists of a plurality of cooling tubes having different inner diameters, with which the cooling tubes are drawn into and out of the path of the rolling stock. Can be moved out of the path. The cooling tubes, together with a carrier, comprise a common cooling head disposed in the water tank and at their inlet, the cooling head correspondingly dimensioned for the cooling water, fitted to itself Has a plurality of nozzles. One rotary slide valve is disposed in front of the nozzles, and the rotary slide valves supply coolant to nozzles located at working positions, respectively. Instead of the rotary slide valve, other controls such as throttle valves, gate valves or single valves may also be used, as in the embodiments continued herein. This type of configuration has the disadvantage of having a significant installation cost in the replacement of the cooling tubes, the cooling heads connected to the cooling tubes and the controls, and the need for skilled specialists for the replacement.

It is an object of the present invention to reduce installation costs and simplify the operation of a water cooled stretch of basic construction.

1 is a longitudinal sectional view of the water-cooled stretch seen from the side,

2 is an enlarged plan view of a portion of a horizontal cross section of a water cooled stretch, and

3 is an enlarged view of a cross section of the water cooling stretch according to FIG. 1 taken along the notch A-A.

* Explanation of Drawings

WZR Water Supply Pipe WKMa, WKMb, WKMc, WKMd Water Tank Module

F Foundation KRA1, KRA2, KRA3 Cooling Tube Section

SW side wall part (of WKM) d1 inner diameter (of KRA1)

d2 inner diameter (of KRA2) d3 inner diameter (of KRA3)

M1 opening (of KRA1) M2 opening (of KRA2)

SS3 speed regulating valve

SSV2 Quick Release Valve SSV3 Quick Release Valve

KDE1 cooling head nozzle member KDE2 cooling head nozzle member

KDE3 Cooling head nozzle member SP clamping member

AD cover BLE1 blast nozzle member

BLE2 blast nozzle member BLE3 blast nozzle member

ST sliding carrier WR rolling direction

P Bidirectional Arrows

The object is that a series of cooling tube sections are arranged in a row in one common cooling water tank, and the inlet and cooling head of each cooling tube section can be connected, the cooling head being fixed by a screw fixing member. At the same time, the water supply of the cooling head starts from a known water cooling stretch belonging to the prior art, which is made according to the invention, starting from a separate supply pipe and through a fast-acting valve arranged outside the water tank. The inlet and outlet ends of each tube section of the device are opened into a standalone water tank module, which is solved by being fixedly arranged on a single water supply tube forming a common horizontally displaceable carrier. . In each water tank module, independent cooling head nozzle members are used, which are interchangeable between the openings of the respective tube sections of the cooling tube device and connectable with fastening valves fitted and fitted. At this time, in the water tank modules disposed at the beginning and the end of the water cooling stretch, a replaceable blast nozzle member may be disposed at the rear or the front of the cooling head nozzle member, and also in the water tank modules. Control materials for adjusting the cooling head nozzle member and the blast nozzle member may be provided. The water tank modules include a single swingable and fixable cover suitably for the purpose, in which the tensionable fixing members are arranged for the cooling head nozzle members and the blast nozzle members. In addition, the water tank modules may be provided with a pneumatically or hydraulically actuated fast-acting butterfly valve, which is connected to the water supply.

The formation example of the water cooling stretch according to the present invention allows the cooling head nozzle members and the blast nozzle members located in the respective water tank modules to be disassembled and replaced without difficulty. Likewise, tube sections disposed between the water tank modules can be disassembled and replaced without difficulty. Each of the cooling tube devices can be moved into and out of the operating position by the transverse displacement of the brace tube and each can itself be supplied with coolant through a fast-acting valve so that only a few minutes It is only necessary to stop the rolling operation which supplies the rolling stock for a while.

The invention is explained in more detail according to the following examples with reference to the drawings.

(Example)

As can be seen from Figure 1 on the water supply pipe (WZR) spaced apart from each other in the present application four water tank modules (WKM) is arranged and is fixedly connected to the water supply pipe in a manner not shown. The water supply pipe WZR, along with the sliding carriers ST, is located on a base F which is horizontally fixed in the direction of the two-way arrow P (see FIG. 2) and in a manner not shown It can be displaced in a horizontal plane using the device or other adjusting members. Into the adjacent water tank modules (WKMa, WKMb, WKMc, WKMd), the cooling tube sections (three sections respectively herein) are spaced apart adjacent to each other in FIG. 2 (KRA1, KRA2, KRA3). Arranged in one horizontal plane and fixed by the side wall portion SW of each of the water tank modules WKM; The cooling tube sections have different inner diameters d1, d2, d3 and then protrude into the water tank modules with their openings M1, M2, M3.

In the water tank modules (see FIG. 3), the on / off valves SSV1, SSV2, and SSV3 are disposed on the water supply pipe WZR, and the cooling head nozzle members KDE1 are respectively provided on the on / off valves. , KDE2, KDE3) may be located interchangeably; The cooling head nozzle members can then be fixed by means of pneumatic or hydraulically actuated cylinder arrangements, springs, wedges or by means of screws, which are not shown, or can also be fixed by means of a single clamping member as shown. It can be fixed by (SP), the clamping member is connected to the cover (AD) connected to the water tank module (WKM). In the water tank modules WKMa and WKMd disposed at the inlet or outlet side of the water cooling stretch, the blast nozzle members BLE1, BLE2, and BL3 in front of and behind the cooling head nozzle members KDE1 and KDE2. ) Is arranged and likewise replaceable insertable; In this case, the blast nozzle members may be fixed while having the same center as the cooling head nozzle members KDE. The cooling head nozzle members and blast nozzle members can be inserted and then adjusted relative to the stopper using screws, guides or adjusting nuts in a manner not shown. Within the water tank modules WKM, a pneumatically or hydraulically actuated fast-acting butterfly valve is arranged to suppress the water hammer from the water supply line WZR.

According to the water-cooled stretch of the present invention, the cooling head nozzle members and the blast nozzle members located in the respective water tank modules can be disassembled and replaced without difficulty. Likewise, tube sections disposed between the water tank modules can be disassembled and replaced without difficulty. Each of the cooling tube units can be moved into and out of the operating position by the transverse displacement of the brace tube, and each of the cooling tubes can be supplied with coolant through a fast-acting valve, so that Simply stop the rolling operation to supply the rolling stock for a while.

This reduces installation costs and simplifies operation in water-cooled stretches of basic construction.

Claims (7)

Water-cooled stretch for cooling rolled stock discharged from a rolling column such as wire or small steel, comprising cooling tubes located in parallel adjacent each other in parallel with each other having a different inner diameter adapted to the cross section of the rolled stock, each in a straight line It forms a cooling tube device consisting of a plurality of tube sections (KRA) arranged, the cooling tube device is commonly on one carrier (ST) which is displaceable horizontally transverse to the movement path of the rolling stock Flow control, which is arranged in and alternately into and out of the travel path, and at the same time the cooling water supply to the respective cooling tube sections KRA is fitted to the cooling head nozzles KDE and to these nozzles. In a water-cooled stretch made by possible valve arrangements, The inlet and outlet ends of the respective cooling tube sections KRA1, KRA2, KRA3 of the cooling tube device open into the standalone water tank modules WKMa, WKMb, WKMc, WKMd, which are fixed in common. And a water-cooled stretch arranged on one water supply line (WZR) to form a horizontally displaceable carrier. 2. The fitting of claim 1, wherein inside each of the water tank modules WKMa, WKMb, WKMc, WKMd is replaceable and fit between openings of respective cooling tube sections KRA1, KRA2, KRA3 of the tube sections. A water cooling stretch, characterized in that each of the independent cooling head nozzle members (KDE1, KDE2, KDE3) that can be connected to the fixed speed on-off valve (SSV) is arranged. 2. The blast nozzle members of claim 1, further replaceable behind the cooling head nozzle members KDE1, KDE2, KDE3 in the water tank modules WKMa, WKMd disposed at the beginning and end of the water cooling stretch. BLE1, BLE2, and BLE3) are arranged in the water-cooled stretch. 4. The control member according to claim 2 or 3, wherein the adjusting members for adjusting the cooling head nozzle members KDE1, KDE2, KDE3 and the blast nozzle members BLE1, BLE2, BLE3 are provided with water tank modules WKMa, WKMb, KWKMc, WKMd). The water cooling stretch according to any one of claims 1 to 4, wherein the water tank modules (WKMa, WKMb, WKMc, WKMd) comprise one cover (AD) capable of swinging and fixing. . A clamping member (SP) according to claim 5, characterized in that it is arranged in the cover (AD) and is tensionable for the cooling head nozzle members (KDE1, KDE2, KDE3) and the blast nozzle members (BLE1, BLE2, BLE3). Water-cooled stretch. 7. The fast-acting butterfly valve according to any one of claims 1 to 6, which is arranged in the water tank modules (WKMa, WKMc, WKMd), connected to the water supply pipe (WZR), and which is pneumatically or hydraulically actuated. Water-cooled stretch characterized.