CN208033284U - A kind of three-high mill cooling device - Google Patents

Abstract

The utility model is related to a kind of three-high mill cooling devices, belong to metallurgy industry three-high mill equipment technical field.Technical solution is：Lower roll（1）, central roll（2）, upper roller（3）, upper roller cooling water beam（5）, upper guide crossbeam（7）With lower guide crossbeam（9）It is each attached to rolling-mill housing（10）On, upper roller cooling water beam（5）It is equipped with multiple bellowss（4）, upper guide crossbeam（7）With lower guide crossbeam（9）On be respectively equipped with central roll cooling water pipe（11）With lower roll cooling water pipe（12）, central roll cooling water pipe（11）With lower roll cooling water pipe（12）On be respectively equipped with multiple water nozzles being evenly arranged.The utility model has the beneficial effects that：Upper roller, central roll and lower roll can be fully cooled, efficiently reduce the generation of roll breakage accident, improve the rolling tonnage of groove.

Description

A kind of three-high mill cooling device

Technical field

The utility model is related to a kind of three-high mill cooling devices, belong to metallurgy industry three-high mill equipment technical field.

Background technology

Three roller memorial archway formula milling trains take central roll to fix, and adjust upper roller and lower roller mode realizes roll gap adjustment.General rolling 5- 9 passages, inlet and outlet guide and guard are fixed on guide crossbeam, since form milling train single chassis rolling pass is more, pass is more, disengaging for this Mouth guide and guard are more, are limited by space, can not individually arrange cooling water pipe by passage.

With reference to attached drawing 1, currently, the three roller semi-closed port memorial archway formula milling trains that domestic overwhelming majority iron and steel enterprise uses, cooling Mode is all two cooling water beams of setting above upper roller, and a certain number of apopores are opened in Shui Liangshang.Cooling water is logical when production The apopore crossed on water beam is sprayed to upper roller, is cooled down to upper roller.Later, these cooling waters by gravity successively flow to central roll and Lower roll, and centring roll and lower roll are cooled down.This type of cooling there are the problem of：Section Steel Production kind is more, different cultivars Roll pass shape and position difference, this type of cooling are that the cooling water of the apopore outflow only against groove can be to rolling Slot plays cooling effect, and other apopores do not have cooling effect to groove, causes cooling effect bad；Secondly, normal When rolling, the cooling water flowed down from upper roller flows first on rolled piece, causes central roll and lower roll that cannot effectively cool down, is easy to happen Roll breakage accident, also resulting in groove rolling tonnage reduces, and rolling cost increases.

Utility model content

The utility model aim is to provide a kind of three-high mill cooling device, can be filled to upper roller, central roll and lower roll Divide cooling, efficiently reduces the generation of roll breakage accident, improve the rolling tonnage of groove, solve the problems, such as background technology.

The technical solution of the utility model is：

A kind of three-high mill cooling device, including lower roll, central roll, upper roller, bellows, upper roller cooling water beam, upper guide and guard cross Beam, lower guide crossbeam, rolling-mill housing, central roll cooling water pipe and lower roll cooling water pipe, lower roll, central roll, upper roller, upper roller cooling water Beam, upper guide crossbeam and lower guide crossbeam are each attached in rolling-mill housing, and upper roller cooling water beam is equipped with multiple bellowss, above leads It defends and is respectively equipped with central roll cooling water pipe and lower roll cooling water pipe on crossbeam and lower guide crossbeam, central roll cooling water pipe and lower roll cooling Multiple water nozzles being evenly arranged are respectively equipped on water pipe.

The upper roller cooling water beam is equipped with and the matched apopore of bellows.

Bellows on the upper roller cooling water beam is rotatablely connected by nut and upper roller cooling water beam.

The upper roller cooling water beam is close to upper roller, and upper guide crossbeam and lower guide crossbeam are respectively close to central roll and lower roll.

Using the utility model, when producing different cultivars specification product, according to upper roller groove position, shape and cooling need It wants, by the direction and the angle that adjust bellows, it is ensured that all grooves of upper roller can be winding is effectively cooled.Later, spray arrives Cooling water in upper roller successively flows to central roll and lower roll by gravity, and centring roll and lower roll are cooled down.Meanwhile central roll and lower rolling Slot can also be cooled down by central roll cooling water pipe and lower roll cooling water pipe.

The utility model has the beneficial effects that：Upper roller, central roll and lower roll can be fully cooled, be efficiently reduced disconnected The generation of roller accident improves the rolling tonnage of groove.

Description of the drawings

Fig. 1 is background technology structural schematic diagram；

Fig. 2 is the utility model structure diagram；

In figure：Lower roll 1, central roll 2, upper roller 3, bellows 4, upper roller cooling water beam 5, groove 6, upper guide crossbeam 7, nut 8, Lower guide crossbeam 9, rolling-mill housing 10, central roll cooling water pipe 11, lower roll cooling water pipe 12.

Specific implementation mode

Below in conjunction with attached drawing, by example, the utility model is described in further detail.

With reference to attached drawing 2, a kind of three-high mill cooling device, including lower roll 1, central roll 2, upper roller 3, bellows 4, upper roller cool down Water beam 5, upper guide crossbeam 7, lower guide crossbeam 9, rolling-mill housing 10, central roll cooling water pipe 11 and lower roll cooling water pipe 12, lower roll 1, central roll 2, upper roller 3, upper roller cooling water beam 5, upper guide crossbeam 7 and lower guide crossbeam 9 are each attached in rolling-mill housing 10, upper roller Cooling water beam 5 is equipped with multiple bellowss 4, and 11 He of central roll cooling water pipe is respectively equipped on upper guide crossbeam 7 and lower guide crossbeam 9 Multiple water nozzles being evenly arranged are respectively equipped on lower roll cooling water pipe 12, central roll cooling water pipe 11 and lower roll cooling water pipe 12.

In the present embodiment, upper roller cooling water beam 5 close to upper roller 3, upper guide crossbeam 7 and lower guide crossbeam 9 respectively close to Central roll 2 and lower roll 1.

Multiple apopores being evenly arranged are opened on upper roller cooling water beam 5, and a nut 8 is welded in the position of apopore, And the bellows 4 in adjustable direction is installed on nut 8.When producing different cultivars product, by adjust bellows 4 direction and Angle is made bellows 4 be directed at groove, is cooled down to upper roller groove with best angle, substantially increase the cooling of upper roller groove Efficiency.

For preferably cooling central roll and lower roll, central roll cooling is fixed respectively on upper guide crossbeam 7 and lower guide crossbeam 9 Water pipe 11 and lower roll cooling water pipe 12 are oriented by the water nozzle being evenly arranged on central roll cooling water pipe 11 and lower roll cooling water pipe 12 The groove of centring roll and lower roll is cooled down.

Using the utility model, whole year can reduce roll breakage accident 15 times, and by the 50000 yuan of calculating of every roll, whole year can reduce 750,000 yuan of cost；Cooling effect is obviously improved, and the rolling tonnage of groove has been increased to 7000 tons or more by original 5000 tons, ton Steel roll consumption reduces 5 yuan, and whole year presses 400,000 tons of AOF calculations, and whole year can reduce about 2,000,000 yuan of cost；Due to roll breakage accident Reduction, whole year can reduce improper roll changing time 23 hours, and due to the promotion of groove tonnage, whole year can reduce roll change 22 times about 33 hours, by 60 tons of mean hours yield, the 500 yuan of calculating of ton steel profit can create effect（23+33）× 60 × 500=1,680,000 yuan, entirely Year, accumulative can create imitated 4,430,000 yuan or more.

Claims (4)

1. a kind of three-high mill cooling device, it is characterised in that include lower roll（1）, central roll（2）, upper roller（3）, bellows（4）, on Roller cooling water beam（5）, upper guide crossbeam（7）, lower guide crossbeam（9）, rolling-mill housing（10）, central roll cooling water pipe（11）And lower roll Cooling water pipe（12）, lower roll（1）, central roll（2）, upper roller（3）, upper roller cooling water beam（5）, upper guide crossbeam（7）With lower guide and guard cross Beam（9）It is each attached to rolling-mill housing（10）On, upper roller cooling water beam（5）It is equipped with multiple bellowss（4）, upper guide crossbeam（7） With lower guide crossbeam（9）On be respectively equipped with central roll cooling water pipe（11）With lower roll cooling water pipe（12）, central roll cooling water pipe（11） With lower roll cooling water pipe（12）On be respectively equipped with multiple water nozzles being evenly arranged.

2. a kind of three-high mill cooling device according to claim 1, it is characterised in that the upper roller cooling water beam（5）On It is equipped with and bellows（4）Matched apopore.

3. a kind of three-high mill cooling device according to claim 1 or 2, it is characterised in that the upper roller cooling water beam （5）On bellows（4）Pass through nut（8）With upper roller cooling water beam（5）Rotation connection.

4. a kind of three-high mill cooling device according to claim 1 or 2, it is characterised in that the upper roller cooling water beam （5）Close to upper roller（3）, upper guide crossbeam（7）With lower guide crossbeam（9）Respectively close to central roll（2）And lower roll（1）.