CN200984589Y

CN200984589Y - High-pressure scale-removal pipes collecting device on water of the rolling mill

Info

Publication number: CN200984589Y
Application number: CNU2006201551318U
Authority: CN
Inventors: 王学志; 李国权
Original assignee: Shaogang Songshan Co Ltd Guangdong
Current assignee: SGIS Songshan Co Ltd; Shaogang Songshan Co Ltd Guangdong
Priority date: 2006-12-25
Filing date: 2006-12-25
Publication date: 2007-12-05
Anticipated expiration: 2016-12-25

Abstract

The utility model relates to a high pressure overwater descaling header pipe device, comprising a backup roll protective plate. A high pressure overwater header is arranged inside the backup roll protective plate, and two ends above the high pressure overwater header are compressed and positioned respectively through a pipe clamp and a press cap, so as the make the backup roll protective plate integrated with the high pressure overwater header into a whole, which is simple and applicable, and reduces investment; the backup roll can be installed and dismantled together with the backup roll system, and can also realize the periodic off-line maintenance together with the backup roll system, which saves the time of on-line maintenance; the overwater descaling header pipe device is positioned in a memorial archway window and relatively close to the roll center line, which makes the device low in the probability of being hit by rolled pieces and long in the life-span. The maintenance, spot inspection, overhaul and observation of the equipment is convenient, and the labor intensity of employees and the rolling process fault are reduced. Meanwhile, as the high pressure nozzle is relatively low in height, little in pressure path delaying loss in steel plate injecting process and large in hitting power, the descaling effect is relatively good.

Description

Descaling header device on the milling train water under high pressure

[technical field]

The utility model relates to a kind of mechanical device, especially relates to a kind ofly being applied on the metallurgical system Heavy Plate Production line, being installed in descaling header device on the milling train water under high pressure on the reversible mill body.

[background technology]

The similar descaling device of present domestic use mainly contains two kinds: a kind of is the fixed descaling header device of going up, the upper header of this kind descaling device is fixed on the framework memorial archway, this fixed descaling header device of going up collides upper header for fear of rolled piece rolled piece when rolling, the ratio of the height operated by rotary motion that upper header is installed is higher, reduced the hitting power of water under high pressure like this to rolled piece, and along with the variation of rolled piece thickness, the upper header nozzle changes from the height of rolled piece upper surface is also corresponding, can't satisfy the production to the demanding product of secondary descaling steel.

Another kind is a descaling header device on traditional trailing type, the upper header of this kind descaling device is installed in the milling train top roll system, the bracing or strutting arrangement that connects collector by the equalizer bar of roller system, and design has special guide-track groove on memorial archway, and the equalizer bar of top roll system drove connecting rod, bracing or strutting arrangement and last de-scaling pipe and fastens down motion with roller when milling train was depressed operation; The descaling header device is widely used in domestic reversible heavy and medium plate mill at present on this tradition trailing type, invests bigger; This device has overcome the phenomenon of the hitting power loss of fixed descaling device device, but because this device is provided with special collector erecting device, hydraulic spray is remote apart from the distance of roll center line, thicker in the rolling starting stage owing to rolled piece thickness, as long as rolled piece has slightly and upwarps, rolled piece also is easy to strike the bracing or strutting arrangement of upper header system, causes the guide rail distortion of the bracing or strutting arrangement of memorial archway guide-track groove and upper header system, causes upper header bracing or strutting arrangement servomechanism jam fault; On the other hand, the upper header system is seated in transportation roller or the breast roller top before and after the roll, and for guaranteeing the hitting power of water under high pressure, the position is lower, is unfavorable for spot check, maintenance, the service work of equipment, influences the operating rate and the working strength of workers of equipment.

[utility model content]

In order to overcome the above-mentioned shortcoming of prior art, the utility model provides a kind of original function of milling train of utilizing, realize one-object-many-purposes, and can reduce the input cost and the equipment failure rate of equipment, alleviate descaling header device on the milling train water under high pressure of maintenance mans and post working strength of workers.

The technical scheme that its technical problem that solves the utility model adopts is: descaling header device on a kind of milling train water under high pressure, comprise the backing roll backplate, in this backing roll backplate the water under high pressure upper header is installed, the two ends, top of water under high pressure upper header compress the location by the pipe clamp gland respectively.

Described water under high pressure upper header is welded by high pressure resistant steel pipe and high pressure nozzle.

The two ends, top of described water under high pressure upper header respectively are welded with square block, and this square block top is provided with the pipe clamp gland that matches with square block.

Described high pressure nozzle passes the bottom girder of backing roll backplate.

Described backing roll backplate is " U " shape structure.

The beneficial effects of the utility model are: backing roll backplate and water under high pressure upper header are united two into one, simple being suitable for, reduced equipment investment; Simple in structure, when changing backing roll, can install and remove with the backing roll system, can be that property performance period off-line is safeguarded and maintenance together with backing roll, save the on-bne repair time; The descaling header device is in the memorial archway window and the close together of roll center line on the utility model, and the probability that is clashed into by rolled piece is low, and the life-span of device is longer; The descaling header device has avoided being installed in transport roller top, roll front and back on the utility model, is convenient to maintenance, spot check, the maintenance of equipment, and makes the milling train operative employee see the operation of rolling of rolled piece more intuitively clearly, has reduced personnel labor and rolling mill practice fault; The high pressure nozzle height of descaling header device is lower on the utility model, and it is little that pressure prolongs the journey loss when spraying steel plate, and hitting power is big, and scale removal effect is better.

[description of drawings]

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the assembling schematic diagram of the utility model and upper support roller roller system.

Among the figure: 1-backing roll backplate, 2-pipe clamp gland, 3-water under high pressure upper header body, 4-high pressure nozzle, 5-square block, 6-working roll backplate, 7-milling train top roll system, the assembling of 8-working roll, 9-upper support roll bearing seat, 10-backing roll backplate II.

[specific embodiment]

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

Referring to Fig. 1 and Fig. 2, descaling header device on a kind of milling train water under high pressure, comprise backing roll backplate 1, this backing roll backplate 1 is " U " shape structure, in this upper support roller backplate 1, the water under high pressure upper header is installed, described water under high pressure upper header is welded by high pressure resistant steel pipe and high pressure nozzle 4, a square block 5 is respectively welded at two ends above water under high pressure upper header body 3, square block 5 tops compress the location by the pipe clamp gland 2 of the guard plate apparatus that matches with square block 5, water under high pressure upper header body 3 be connected or be connected with high-voltage tube that the high pressure pumping plant is come with the high-pressure metal flexible pipe, high pressure water jets 4 mouths pass the bottom girder direct injection water under high pressure of backing roll backplate 1.

Referring to Fig. 3, the milling train top roll is that 7 working roll assembling 8 is equipped with working roll backplate 6, the outside of working roll two side guard plates is respectively backing roll backplate 1 and backing roll backplate II 10, the both sides that backing roll backplate 1 and backing roll backplate II 10 are installed in respectively on the upper support roll bearing seat 9, descaling header device on the water under high pressure is installed in " U " shape structure of backing roll backplate 1, when depressing when carrying out operation, the milling train top roll is 7 along with screwdown gear moves up and down, the last descaling header that is installed in the backing roll backplate 1 is the corresponding motions of 7 dos with top roll also, when the given injection signal of injection valve of water under high pressure, injection valve is opened, and the high pressure nozzle 4 that water under high pressure is delivered to collector along the workshop pipeline sprays the de-scaling operation.The utility model is mainly used in the last descaling header device on the cut deal reversible mill or the rolled piece upper surface cooling device of the operation of rolling, also is fit to the milling train that needs frequently change to rolled piece de-scaling or cooling and gap values between rollers simultaneously.

Claims

1, descaling header device on a kind of milling train water under high pressure comprises the backing roll backplate, it is characterized in that: in this backing roll backplate the water under high pressure upper header is installed, the two ends, top of water under high pressure upper header compress the location by the pipe clamp gland respectively.

2, descaling header device on the milling train water under high pressure as claimed in claim 1, it is characterized in that: described water under high pressure upper header is welded by high pressure resistant steel pipe and high pressure nozzle.

3, descaling header device on the milling train water under high pressure as claimed in claim 1 or 2, it is characterized in that: the two ends, top of described water under high pressure upper header respectively are welded with square block, and this square block top is provided with the pipe clamp gland that matches with square block.

4, descaling header device on the milling train water under high pressure as claimed in claim 2, it is characterized in that: described high pressure nozzle passes the bottom girder of backing roll backplate.

5, descaling header device on the milling train water under high pressure as claimed in claim 1 is characterized in that: described backing roll backplate is " U " shape structure.