CN201375987Y - A lateral water retaining device for a hot rolling mill - Google Patents

Abstract

A lateral water retaining device of a hot continuous rolling mill, which solves the problem of rebounding of the lateral purge and spray water of the hot continuous rolling mill. This device is provided with several spaced arc-shaped Water blocking plate, and a water diversion groove is set under the fixed bottom plate, one side of the water diversion groove is a water diversion groove guard plate, one side of the upper side of the water diversion groove guard plate is connected with the fixed bottom plate, and the other The side is a lateral water baffle. Once the spray water encounters the resistance of the lateral water baffle, the arc-shaped water baffle will reduce the pressure of the water spray and change the direction of the purge water so that the purge water will pass through the water baffle. The water tank guard plate and side water retaining plate flow into the water diversion tank, which not only meets the requirements of purging, but also has the effect of environmental protection. At the same time, it is conducive to the synchronous and stable threading of the strip steel and meets the requirements of actual use.

Description

A lateral water retaining device for a hot rolling mill

technical field

The utility model relates to a water retaining device of a hot continuous rolling mill, in particular to a lateral water retaining device of a hot continuous rolling mill.

Background technique

During the whole process of hot rolling in the hot rolling mill, the method of side blowing is adopted to remove the accumulated water on the surface of the strip and other various foreign matters such as iron oxide powder.

Fig. 1 is the structural schematic diagram of the lateral water retaining device of existing tandem rolling mill, so-called lateral purging as shown in Fig. 1 generally refers to the installation of several nozzles (not shown) on one side (working side) of the rolling line, The water (hereinafter referred to as water spray) 11 sprayed by the nozzle will sweep the accumulated water and foreign matter on the surface of the strip 13 on the roller table 10 to the other side (transmission side) of the rolling line from the side. Obviously, this As a result of the purging, there is a large amount of accumulated water on the other side of the rolling line and various foreign objects generated after the surface of the strip is purged. As the strip 13 advances on the roller table 10, these accumulated water and foreign objects fall to the ground. In order to improve the environment of the production site, generally on the fixed bottom plate 6 of the roller table motor (not shown) on both sides of the rolling line of the continuous rolling mill (only the fixed bottom plate 6 on the transmission side is shown in Figure 1, and the fixed bottom plate 6 on the nozzle side is shown). Not shown), several baffles 1 are installed at a certain distance to block the falling of part of the water and foreign matter, so that the site environment after side purge will not be greatly affected.

In the actual use of the site, the above-mentioned existing water retaining device has the following problems: although the baffle plate 1 can partially block the accumulated water and various foreign objects produced after purging, due to the work of the lateral purge water spray 11 The pressure is relatively high (generally up to 4KG/CM), and once resistance is encountered (that is, the high-pressure water spray 11 encounters the baffle 1), it is bound to rebound, forming a splash of water spray 12, causing the accumulated water and foreign objects after purging to rebound to the The surface of the steel strip 13 affects the control of the surface quality of the steel strip 13.

In addition, the function of the above-mentioned baffle plate 1 is not only to laterally block part of the water and foreign objects from falling, but also to prevent the strip from running off during the threading process of the strip 13. When stripping, there is a certain uncertainty in the shape of the strip, and sometimes the head of the strip steel 13 will run against the baffle. Therefore, the distance between the above-mentioned baffles 1 cannot be too wide. Once the distance between the baffles is too large, Will cause strip steel head to run smoothly, for this reason, when improving current baffle plate 1, although can adopt to increase the spacing between each baffle plate 1, can improve the rebound phenomenon of water spray, can reduce more at the same time However, there is a big hidden danger to the smooth operation of the head of the strip steel 13. At the same time, increasing the spacing will cause more water and foreign matter to spill on the site and affect environmental protection.

Therefore, in order to not only ensure the quality of the strip surface during the hot rolling process, but also ensure the smooth operation of the strip head, and at the same time be conducive to environmental protection, it is necessary to reform the water retaining device in the existing side purge An urgent need for the industry.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems existing in the side purge of the existing hot continuous rolling mill, to provide a method that can effectively prevent water accumulation and garbage from rebounding to the surface of the strip steel, so as to ensure the quality of the surface of the strip steel, and The utility model relates to a side water retaining device of a hot continuous rolling mill which can ensure the smooth operation of the head of the strip steel and achieve the effect of environmental protection.

The purpose of this utility model is achieved in that:

A lateral water retaining device of a hot continuous rolling mill, which is arranged on the transmission side of the rolling line of the hot continuous rolling mill, and includes several spaced-apart and facing the outside of the transmission side installed on the fixed bottom plate of the roller table motor on the transmission side. The arc-shaped water-blocking boards curved in a circular arc, and the ribs connected in the middle of the back of each arc-shaped water-blocking board and forming an angle with the arc-shaped water-blocking boards, the ribs are connected by the straight board and the bottom edge of the straight board and connected with the The straight plate is composed of a right-angled bottom panel, and the bottom panel and the fixed bottom plate of the roller table motor on the transmission side are fixed by screws.

The beneficial effects of the utility model:

In the lateral water retaining device of the hot continuous rolling mill of the utility model, several arc-shaped water blocking plates with intervals are arranged on the fixed bottom plate of the roller table motor on the transmission side of the rolling line, and a water diversion groove is arranged under the fixed bottom plate , one side of the water diversion tank is the water diversion tank guard plate, one side of the upper side of the water diversion tank guard plate is connected with the fixed bottom plate, and the other side opposite to the water diversion tank guard plate is a lateral water retaining plate, once the water spray on the working side encounters The arc-shaped water blocking plate can reduce the spray pressure and change the direction of the blowing water, so that the blowing water can flow into the water diversion tank through the guard plate of the water diversion tank and the side water barrier. , to meet the requirements of purging and environmental protection, and at the same time, it is conducive to the stable and synchronous threading of the strip steel and meets the requirements of actual use.

In order to further illustrate the above purpose, structural features and effects of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the structural representation of the lateral water retaining device of existing continuous rolling mill;

Fig. 2 is a schematic side view of the lateral water retaining device of the hot continuous rolling mill of the present invention;

Fig. 3 is a schematic structural view of the lateral water retaining device of the hot continuous rolling mill of the present invention;

Fig. 4 is the schematic front view of Fig. 2;

Fig. 5 is a structural schematic diagram of the water blocking plate in the utility model.

Detailed ways

The specific implementation of the lateral water retaining device of the hot continuous rolling mill of the present invention will be described in detail below in conjunction with the accompanying drawings of the embodiment.

Referring to Fig. 2-Fig. 5, the structure of the lateral water retaining device of the hot continuous rolling mill of the present invention is as follows.

Several nozzles (not shown) for spraying water 11 are installed on the working side of the rolling line of the hot continuous rolling mill, and the accumulated water and foreign matter on the surface of the strip 13 on the roller table 10 are purged from the side by the water spray 11 On the other side of the rolling line (transmission side), install several baffles 1 with a distance from each other on the fixed bottom plate (not shown) of the roller table motor on the side where the nozzle is installed to prevent the roller table from running off. .

The water retaining device of the present utility model is arranged on the transmission side of the rolling line of the hot continuous rolling mill, and includes an arc-shaped water-blocking plate 4 and a rib plate 5, and several arc-shaped water-blocking plates that are spaced apart from each other and are curved toward the outer side of the transmission side. The water plate 4 is installed on the roller table motor fixed bottom plate 6 on the transmission side of the rolling line. The arc angle of the arc-shaped water-blocking plate 4 is preferably 45 degrees, and the rib plate 5 is connected to each arc-shaped water-blocking plate 4. In the middle of the back, and at an angle (90° is the best) with the arc-shaped water blocking plate 4, the rib plate 5 is composed of a straight plate 51 and a bottom panel 52 connected to the bottom of the straight plate 51 and at right angles to the straight plate 51. Screw holes 53 are provided on the panel 52 , and the bottom panel 52 is fixed to the fixed bottom plate 6 through the screws 3 in the screw holes 53 .

The water retaining device also includes a water diversion groove 2 arranged under the fixed bottom plate 6 of the roller table motor on the transmission side of the rolling line. The water retaining plate 9 is composed of one side of the upper side of the water diversion tank guard plate 7 connected to the fixed bottom plate 6, and the height of the lateral water retaining plate 9 opposite to the water diversion tank guard plate 7 is higher than the position of the curved water blocking plate 4 high.

The design of the arc surface of the arc-shaped water blocking plate 4 is to consider that the water spray 11 of the rolling line uses a certain angle to sweep the surface of the strip 13 from the side. Since the strip 13 is in a moving state, the sideways When the water spray 11 is in working condition, a certain spray angle is generated. The design of the arc surface of the arc-shaped water blocking plate 4 can effectively block the water spray 11 and change the water spray 11 when it encounters the lateral water blocking plate 9. Spray water in 12 directions. Considering that the lateral spray 11 has a certain pressure, when designing the curved water blocking plate 4, a rib plate 5 is installed behind it to ensure the strength of the curved water blocking plate 4, that is, when encountering No deformation will occur during the force of the lateral water spray 11, therefore, the rib plate 5 has the effect of reinforcing rib on the arc-shaped water blocking plate 4, and also plays the role of fixing.

In addition, an upper baffle plate 14 inclined towards the direction of the arc-shaped water-blocking plate 4 is connected to the upper side of the side water-blocking plate 9, so that the side spray 11 passes through the arc-shaped water-blocking plate 4. After decompression and change of direction, the water spraying is subjected to lateral water blocking to ensure that the lateral water spray 11 does not spray to the periphery of the rolling line. block, or between the distance between the two arc-shaped water blocking plates 4, by directly spraying on the side water blocking plate 9 or the upper baffle plate 14, the side spray water can pass through the water diversion groove guard plate 7 and the side water blocking plate. The plate 9 smoothly enters the water diversion groove 2 and is discharged into the waste water pool, which greatly improves the environment on site and improves the quality of the steel strip surface.

This scheme was tried on the conveying roller table of Baosteel's hot rolling main rolling line, and effectively solved the problem of water accumulation and foreign matter residue after the strip surface was purged by lateral water spraying, and the application effect was good.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the purpose of the utility model, rather than as a limitation of the utility model, as long as within the essential scope of the utility model, the above-mentioned The changes and modifications of the above embodiments will fall within the scope of the claims of the present utility model.

Claims (5)

1, a kind of side direction baffle device for water of continuous hot-rolling mill is located at the rolling line transmission side of continuous hot-rolling mill, it is characterized in that:

This baffle device for water comprise on the electric machines for roller fixed base plate that is installed in described transmission side several have each other spacing and towards the camber eliminator plate of transmission side outer arc bending, and in the middle of the back side of each arc eliminator plate, connect and be the gusset of an angle with the arc eliminator plate, gusset is connected by straight plate and with the base of straight plate and forms with the rectangular bottom panel of straight plate, and the electric machines for roller fixed base plate employing screw of bottom panel and described transmission side is fixed.

2, the side direction baffle device for water of continuous hot-rolling mill as claimed in claim 1 is characterized in that:

This baffle device for water also comprises a gutter of the electric machines for roller fixed base plate below that is arranged on described transmission side, gutter reaches the gutter backplate and the side direction water fender that are connected with the trough floor both sides by trough floor and forms, wherein a top limit of gutter backplate is connected with the electric machines for roller fixed base plate of described transmission side, and the height of the side direction water fender relative with described gutter backplate is higher than the position height of described arc eliminator plate.

3, the side direction baffle device for water of continuous hot-rolling mill as claimed in claim 1 is characterized in that:

Described arc eliminator plate is 45 ° of arc angles.

4, the side direction baffle device for water of continuous hot-rolling mill as claimed in claim 1 is characterized in that:

Described arc eliminator plate and gusset are 90 ° of angles.

5, the side direction baffle device for water of continuous hot-rolling mill as claimed in claim 2 is characterized in that:

Connect an overhead gage that tilts to the direction that is equipped with described arc eliminator plate on the top limit of described side direction water fender.

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