CN202701179U

CN202701179U - Cooling device suitable for back bent pipe of high line pinch roll

Info

Publication number: CN202701179U
Application number: CN 201220377505
Authority: CN
Inventors: 杨家满; 曹文俊; 李国斌; 周华兵
Original assignee: Shaogang Songshan Co Ltd Guangdong
Current assignee: Shaogang Songshan Co Ltd Guangdong
Priority date: 2012-08-01
Filing date: 2012-08-01
Publication date: 2013-01-30
Anticipated expiration: 2022-08-01

Abstract

The utility model relates to a cooling device suitable for a back bent pipe of a high line pinch roll, which comprises two gas coolers and an atomization cooler, wherein the two gas coolers adopting different cooling medium elements are arranged as a group, and the gas coolers and the atomization cooler are connected with each other through a gas pipe, a water pipe, a hand valve, an electromagnetic valve, an elbow, a metal hose and a water container to form a cooling medium supply system. The bent pipe can be operated at low temperature, the service life of the bent pipe can be greatly prolonged, and the consumption of a spare part of the bent pipe can be greatly reduced. The abnormal changing time of a workpiece can be reduced, and the production and operation efficiency can be effectively increased. The rolling speed of production is stabilized with a design range, the production capacity of a rolled piece is greatly increased, and additionally, the probability of occurrence of bad quality and the like caused by the bent pipe is reduced. The equipment environment temperature is reduced, and the operation environment is improved.

Description

A kind of cooling device that is applicable to high line pinch roll back elbow

Technical field

The utility model belongs to the steel rolling equipment technical field, relates to a kind of cooling device that is applicable to high line pinch roll back elbow that wire guide device after the hot rolling is cooled off.

Background technology

In high-speed rod-rolling mill was produced, the wire rod after rolling was transported to behind the bend pipe guiding through pinch roll and enters Laying head and form and coil.Because wire rod rolling speed is fast, temperature is high, when passing bend pipe, to elbow internal wall guiding area quick abrasion, makes the bend pipe targeting part groove easily occur, causes heap steel accident thereby cause wire rod to block.

Cause the factor of above-mentioned accident to have: because the bend pipe that uses is the Integral bending shape, to have certain radian, adopt the extraneous gas cooling.When rolled piece in the high-speed cruising process, temperature with bend pipe contact area friction generation heat and rolled piece itself, make the temperature of moment contact area reach the phase change zone of bend pipe material, thereby cause the rapid variation of bend pipe friction subregion, the for want of cooling of medium, impel the material hardness of bend pipe to descend, cause the elbow internal wall strong wear.Although adopted several different methods to attempt to address the above problem, such as employing tungsten carbide metal plug-in unit, bend pipe external water cooling method etc., problem still is difficult to thorough change.

The utility model content

In order to overcome the above-mentioned shortcoming of prior art ,The utility model provides a kind of bend pipe that not only can cool off outside but also can cool off inwall, make rolled piece at high-speed cruising simultaneously, reduce rolled piece to the wearing and tearing of bend pipe guiding area, improve service life, can effectively reduce the cooling device that is applicable to high line pinch roll back elbow of consuming cost

The technical scheme that its technical problem that solves the utility model adopts is: a kind of cooling device that is applicable to high line pinch roll back elbow, comprise that two different cooling medium elements of employing are one group gas cooler and spray cooler, gas cooler is connected by tracheae, water pipe, manually-operated gate, electromagnetic valve, elbow, metal hose and water receiver respectively with a spray cooler and forms the cooling medium supply system.

Gas cooler and spray cooler are comprised of the cavity element of two convex shapes, its lug boss is different gas nozzle and the atomizer of row's caliber size, and the slit between gas nozzle and the atomizer forms the bushing type shower nozzle that can regulate the atomized flow amount.

Described cooling medium supply system also comprises the aqueous vapor mist pipe that is comprised of water receiver, tracheae and cooling water pipe connection.

Described water receiver also includes water inlet pipe and drainpipe, and the manually-operated gate of capable of regulating flow quantity is housed respectively on water inlet pipe and drainpipe.

Be provided with the electromagnetic valve that adopts PLC control at described tracheae.

Identical by two internal structures, be installed in the place, input port of bend pipe and the gas nozzle of equipped at outlet port respectively and consist of the gas purging device, the gas nozzle that wherein prevents cooling medium in the bend pipe from flowing backwards and affect pinch roll collars performance is contained in the place, input port of bend pipe, prevents that rolled piece from bringing in the Laying head and the gas nozzle that affects the operation work of Laying head is installed in the terminal and Laying head porch of bend pipe to the cooling medium in the bend pipe.

The beneficial effects of the utility model are: bend pipe can be worked under low-temperature condition, significantly promote the service life of bend pipe, the spare parts consumption of saving bend pipe that can be a large amount of; Can reduce the improper replacing time of workpiece, the Effective Raise production operation efficiency; The mill speed of producing is stabilized in scope of design, has increased substantially the production capacity of rolled piece, reduced simultaneously the probability of happening that produces the quality problems such as bad owing to the bend pipe reason; Reduce the facility environment temperature, improved operating environment.

Description of drawings

Fig. 1 is mounting structure schematic diagram of the present utility model.

A-A profile among Fig. 2 Fig. 1.

Fig. 3 cooling medium supply system of the present utility model schematic diagram.

Among the figure: 1-purging device, 2-tracheae, 3-elbow box, the 4-gas cooler, 5-gas nozzle, 6-spray cooler, 7-aqueous vapor mist pipe, 8-cooling water pipe, 9-slit, the 10-atomizer, 11-pore, 12-bend pipe, the 13-electromagnetic valve, 14-water receiver, 15-manually-operated gate, the 16-drainpipe, the 17-water inlet pipe.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of cooling device that is applicable to high line pinch roll back elbow, comprise that two different cooling medium elements of employing are gas cooler 4 and spray cooler 6 of one group, gas cooler 4 and spray cooler 6 are comprised of the cavity element of two convex shapes, its lug boss is different gas nozzle 5 and the atomizer 10 of row's caliber size, when two elements combinations together the time, slit 9 between gas nozzle 5 and the atomizer 10 forms the bushing type shower nozzle that can regulate the atomized flow amount, so gas-mist cooling device adopts split-type structural to combine, and its objective is the size that can regulate as required cooling medium consumption; Gas cooler 4 is connected by elements such as tracheae 2, water pipe, manually-operated gate 15, electromagnetic valve 13, elbow, metal hose and water receivers 14 respectively with a spray cooler 6 and forms the cooling medium supply system.

Described cooling medium supply system also comprises the aqueous vapor mist pipe 7 that is comprised of water receiver 14, tracheae 2 and cooling water pipe 8 connections, wherein water receiver 14 also includes water inlet pipe 17 and drainpipe 16, and the manually-operated gate 15 of capable of regulating flow quantity, the reserves at control water source be housed respectively on water inlet pipe 17 and drainpipe 16; In addition cooling water pipe 8 often is made as and opens, be provided with electromagnetic valve 13 at tracheae 2, can adopt switch and the spray pattern of PLC control electromagnetic valve 13, the consumption of the cooling medium energy that avoids waste.

Two internal structures are identical but be installed in respectively the input port of bend pipe 12 and the gas nozzle 5 of equipped at outlet port consists of gas purging devices 1, gas nozzle 5 Main Functions that are contained in the place, input port of bend pipe 12 prevent the cooling medium refluence in the bend pipe 12 and affect pinch roll collars performance, the gas nozzle 5 of equipped at outlet port is installed in bend pipe 12 terminal and Laying head porch, Main Function is to prevent that rolled piece from bringing the cooling mediums in the bend pipe 12 in the Laying head into, affects the operation work of Laying head.

It is to use the air pressure type sprayer principle that the utility model provides the cooling medium atomizing in the gas-mist cooling device to form, after the electromagnetic valve 13 on the tracheae 2 is opened, compressed gas is interior when mobile in aqueous vapor mist pipe 7, so that with aqueous vapor mist pipe 7 joining cooling water pipe 8 interior formation vacuum after, cooling water in the water receiver 14 is just along with gas together co-flow, and mix in the confluce of two pipes, form for the first time aqueous vapor atomizing, after entering spray cooler 6 inner chambers by aqueous vapor mist pipe 7, when spraying through adjustable flow slit 9 pore 11 on the bend pipe 12, again join at atomizer 10 places with the gas of gas cooler 4 injections again, form the secondary-atomizing cooling medium, cooling medium through twice atomizing enters bend pipe 12 inside with the pore 11 that water smoke of uniform size sprays on the bend pipe 12, thereby effectively guarantees the cooling medium action effect.

The utility model gas-mist cooling device is provided with valve regulated by the hydraulic pressure that provides, the pipeline of air pressure, has following functions: be the water spray cooling during water flowing stuffiness, the not water flowing of only ventilating is jet cooling, be the aerosol cooling during aqueous vapor all-pass, and the effect of aerosol cooling can change in the larger context; And the size of regulating the atomizing spray chamber slit 9 of two coolers compositions can obtain different fogdrop diameters and spray kinetic energy; Simultaneously, the cooling medium that is subject to cooling device and purging device 1 because of rolled piece in bend pipe 12 interior runnings sprays the certain downward pressure that has that produces, and has also reduced the friction of rolled piece to bend pipe 12 contact areas, has reduced the wear extent of contact area.

Adopt the utility model, bend pipe can be worked under low-temperature condition, significantly promote the service life of bend pipe, the spare parts consumption of saving bend pipe that can be a large amount of; Can reduce the improper replacing time of workpiece, the Effective Raise production operation efficiency; The mill speed of producing is stabilized in scope of design, has increased substantially the production capacity of rolled piece, reduced simultaneously the probability of happening that produces the quality problems such as bad owing to the bend pipe reason; Reduce the facility environment temperature, improved operating environment.

The utility model cooling device provides a kind of scientific and reasonable for structure, time that can shorten for some reason barrier or need of production, also can reduce the consumption of spare part and alleviate operating personnel's labour intensity simultaneously, can effectively reduce consuming cost.

Claims

1. cooling device that is applicable to high line pinch roll back elbow, it is characterized in that: comprise that two different cooling medium elements of employing are one group gas cooler and spray cooler, gas cooler is connected by tracheae, water pipe, manually-operated gate, electromagnetic valve, elbow, metal hose and water receiver respectively with a spray cooler and forms the cooling medium supply system.

2. be applicable to as claimed in claim 1 the cooling device of high line pinch roll back elbow, it is characterized in that: gas cooler and spray cooler are comprised of the cavity element of two convex shapes, its lug boss is different gas nozzle and the atomizer of row's caliber size, and the slit between gas nozzle and the atomizer forms the bushing type shower nozzle that can regulate the atomized flow amount.

3. be applicable to as claimed in claim 1 the cooling device of high line pinch roll back elbow, it is characterized in that: described cooling medium supply system also comprises the aqueous vapor mist pipe that is comprised of water receiver, tracheae and cooling water pipe connection.

4. as being applicable to the cooling device of high line pinch roll back elbow as described in claim 1 or 3, it is characterized in that: described water receiver also includes water inlet pipe and drainpipe, and the manually-operated gate of capable of regulating flow quantity is housed respectively on water inlet pipe and drainpipe.

5. be applicable to as claimed in claim 1 the cooling device of high line pinch roll back elbow, it is characterized in that: be provided with the electromagnetic valve that adopts PLC control at described tracheae.

6. be applicable to as claimed in claim 1 the cooling device of high line pinch roll back elbow, it is characterized in that: identical by two internal structures, be installed in the place, input port of bend pipe and the gas nozzle of equipped at outlet port respectively and consist of the gas purging device, the gas nozzle that wherein prevents cooling medium in the bend pipe from flowing backwards and affect pinch roll collars performance is contained in the place, input port of bend pipe, prevents that rolled piece from bringing in the Laying head and the gas nozzle that affects the operation work of Laying head is installed in the terminal and Laying head porch of bend pipe to the cooling medium in the bend pipe.