CN2187987Y

CN2187987Y - Ring jet type cooling device

Info

Publication number: CN2187987Y
Application number: CN 92207137
Authority: CN
Inventors: 金大华; 鲁丽燕
Original assignee: Capital Iron & Steel Co
Current assignee: Capital Iron & Steel Co
Priority date: 1992-04-20
Filing date: 1992-04-20
Publication date: 1995-01-25
Anticipated expiration: 2002-04-20

Abstract

The utility model relates to a ring jet type cooling device for cooling hot rolled steel bars, which comprises a cooler, a machine moisture trap, a waterpower moisture trap and a water beam. The ring jet type cooling device is characterized in that a hutch water device 1 is additionally arranged in front of the cooler 2 at the entrance of the steel bar, and the structure of the hutch water device is the same with the waterpower moisture trap 4, but the arranged direction of the hutch water device is opposite. A plurality of wedge inclined irons 6 which are compact and are fixedly connected are adopted among the water beam 5, the hutch water device 1, the cooler 2 and the waterpower moisture trap 4. Conical surfaces are respectively arranged at the two ends of the bore of the machine moisture trap 3. The major diameter end of the conical surface is positioned at the two ends of a through hole. The utility model can effectively solve the problems that the cooled water of the former cooling device is regurgitated, spattered, cooled and asymmetrical, and the installation and the dismounting of the ring jet type cooling device are difficult.

Description

Ring jet type cooling device

The utility model relates to a kind of cooling device that is used for hot-rolling metal bar, particularly hot-rolled reinforced bar.

Usually, hot-rolled reinforced bar is after milling train output, and its temperature is about 1050 ℃, generally will make this moment it pass through a cooling device and carry out cooling, makes it surface hardening-self tempering simultaneously to improve its comprehensive mechanical performance.

This class cooling device generally includes a water tank, be fixed on the cooler in the water tank, intercept water machinery device and the waterpower device that intercepts water, reinforcing bar at first passes cooler after entering water tank, in cooler, make it cooling and surface hardening-self tempering to reinforcing bar circumferential surface ejection cooling water, by machinery device and the waterpower device that intercepts water that intercepts water, their effect is the cooling water of intercepting with the reinforcing bar ejection to reinforcing bar, makes it not spray water tank then.

Often there are some problems in this traditional cooling device.That is: when reinforcing bar enters cooler, must carry portion of air secretly and enter cooler together, thereby cooling effect is descended.In addition, cooler, machinery device and the waterpower fixed form of device in water tank that intercept water that intercept water generally is to fix by threaded fastener, when blocking in reinforcing bar is passing the course of conveying of cooling device, often will dismantle cooler, machinery device and the waterpower device that intercepts water that intercepts water.And threaded fastener makes the dismounting of this class and reinstalls and wastes time and energy very much; And this installation very easily causes drainage.Moreover machinery the intercept water structure of device of device and waterpower that intercepts water is unreasonable, except that the efficient that intercepts water is low, also causes the problem that increases the reinforcing bar advance resistance.

The purpose of this utility model is to provide a kind of reinforcing bar conveying capacity that neither reduces can improve cooling capacity again, and cool off annular spray formula cooling device uniform, quick detachable installation, it can cooling hot-rolled effectively metal bar, thereby solve the steel inhomogeneous cooling, advance resistance is big, removes and installs the problem of difficulty.

In order to realize the problems referred to above, the utility model proposes a kind of cooling device of cooling hot-rolled reinforcing bar.This device is made up of cooler, machinery intercept water device and the water beam of device, waterpower that intercept water, its special seized with terror being: a hutch water device has been set up in the cooler the place ahead at the reinforcing bar inlet, the overcoat through hole of outwards spraying water on the hutch water device and the conical surface angle of nozzle member are preferably between 20 °～60 °, its structure is identical with the waterpower device that intercepts water, but that it is provided with direction is opposite; The fixed connection that water beam and hutch water device, cooler, waterpower intercept water and adopted several wedge shape wedges 6 to compress between the device; Respectively there is a conical surface at the intercept water endoporus two ends of device of machinery, and the larger diameter end of the conical surface is positioned at the both ends of through hole.

The utility model is owing to be provided with a hutch water device before cooler, when reinforcing bar enters this device, hutch water device sprays a cone shape water curtain around the periphery of reinforcing bar, the coniform tip of this water curtain can be sealed the cooler reinforcing bar inlet in downstream just, thereby prevented that air from entering cooler with reinforcing bar, so just improved cooling effect.Because the fixed connection mode of having taked the wedge shape wedge to compress makes the adjusting of each device that simple and convenient is installed, and has eliminated drainage substantially; The intercept water change of device structure of intercept water machinery device and waterpower makes this device improve the efficient that intercepts water, and has reduced the resistance that reinforcing bar advances.

With reference to the accompanying drawings, in conjunction with most preferred embodiment the utility model is further described:

Fig. 1 is a longitudinal sectional view of the present utility model.

As shown in Figure 1, this installs by hutch water device 1, cooler 2, several machineries device 3 that intercepts water, and intercept water device 4 and water beam 5 of waterpower formed.Intercept water hutch water device 1, cooler 2, machinery device 3 and the waterpower device 4 that intercepts water is word order on water beam 5, the fixed connection that water beam 5 and hutch water device 1, cooler 2 and waterpower intercept water and adopted several wedge shape wedges 6 to compress between the device 4 successively.

When hot-rolled state reinforcing bar (1050 ℃ ± 50 ℃) when entering this cooling device, at first enters hutch water device 1, enter cooler 2 then, enter two machineries device 3 that intercepts water again, enter waterpower device 4 output from this device at last that intercepts water subsequently.

According to the utility model, it is identical with the waterpower device structure that intercepts water that reinforcing bar to be cooled at first enters, but the opposite hutch water device of locality 1 is set.The through hole that has a conveying steel in the overcoat of hutch water device, in through hole, be provided with the cylindric nozzle member of a diameter with one heart less than the overcoat through-hole diameter, gap between the inner circumferential surface of overcoat through hole and the external peripheral surface of nozzle member constitutes an annular slot, and the angle of the conical surface of overcoat through hole and nozzle member is preferably between 20 °～60 °.When reinforcing bar enters the hutch water device 1 of this device, the spraying pressurized water of the above-mentioned annular slot ejection of overcoat through hole and nozzle member forms a coniform water curtain to the periphery of reinforcing bar, just can seal the reinforcing bar inlet of the cooler 2 in downstream, air is by the import department outside of shutoff at cooler 2, cooling water enters cooler 2 with reinforcing bar, carries out heat exchange with reinforcing bar.

The structure and the prior art of cooler 2 are similar, its cooling water pipe 7 adopts segmented, all adopt the conical surface to peg graft between section and the section, and cooling water pipe is fixed on Shui Liangshang with above-mentioned wedge shape wedge 6 fixed forms, constitute a long and straight reinforcing bar transfer passage, make reinforcing bar in cooling, utilize thrust conveying steel in cooling water pipe of cooling water, and need not other additional transmitting power.After reinforcing bar has gone out cooling water pipe, promptly enter two identical machineries of structure device 3 that intercepts water.

Machinery intercepts water a through hole that constitutes the part of reinforcing bar transfer passage on the device, respectively there is a conical surface at the two ends of this through hole, the larger diameter end of two conical surfaces is positioned at the both ends of through hole, when reinforcing bar enters first conical surface, this conical surface both can play the effect into the reinforcing bar guiding, can play the effect that retaining falls a part of cooling water again, all the other cooling waters are along with reinforcing bar moves on, at second conical surface place relative with first conical surface, because section increases water speed suddenly and diminishes thereupon, and the water column sectional area increases gradually, and this part cooling water is blocked in second machinery again and intercepts water on the section of device, and second machinery intercepts water and thinks highly of the intercept water function of device of multiple first machinery.

In the intercept water downstream of device of two machineries, be provided with one identical with the hutch water device structure, the opposite waterpower of the direction device 4 that intercepts water is set.When reinforcing bar passes its through hole operation, its circumferential outer surface along the direction opposite with the reinforcing bar throughput direction towards reinforcing bar sprays the taper water curtain, this taper water curtain most advanced and sophisticated pointed to the intercept water through hole outlet of device of second machinery just, branch dissipates thereby general's cooling water is wherein rived, cooling water is stopped fully, reinforcing bar has promptly been finished whole cooling procedures by whole device.

Claims

1, a kind of annular spray formula cooling device of cooling hot-rolled reinforcing bar, comprise cooler, machinery intercept water device, waterpower intercept water device and Shui Liang, it is characterized in that: a hutch water device (1) has been set up in cooler (2) the place ahead at the reinforcing bar inlet, hutch water device (1) is gone up the overcoat through hole of outside water spray and the conical surface angle of nozzle member is preferably between 20 °～60 °, its structure is identical with the waterpower device (4) that intercepts water, but that it is provided with direction is opposite; The fixed connection that water beam (5) and hutch water device (1), cooler (2), waterpower intercept water and adopted several wedge shape wedges (6) to compress between the device (4); Respectively there is a conical surface at the intercept water endoporus two ends of device (3) of machinery, and the larger diameter end of the conical surface is positioned at the both ends of through hole.