CN202591257U

CN202591257U - Emulsion injecting beam for cold-rolling mill

Info

Publication number: CN202591257U
Application number: CN 201220172455
Authority: CN
Inventors: 李秀军; 瞿培磊; 王康健
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2012-04-20
Filing date: 2012-04-20
Publication date: 2012-12-12
Anticipated expiration: 2022-04-20

Abstract

The utility model relates to an emulsion injecting beam for a cold-rolling mill. The emulsion injecting beam for the cold-rolling mill comprises upper and lower circular pipes. A communication pipe is arranged between the upper and lower circular pipes for communication. A wedged reducing-structure central pipe is further arranged in the center of the communication pipe and is installed with the communication pipe in a concentric manner. A spacing distance is maintained between the central pipe and the inner wall of the communication pipe. The upper and lower circular pipes are respectively communicated to a header pipe through a branch pipe. A plurality of nozzles are installed in a length direction of a side face of the upper and low circular pipes, corresponding and close to a steel plate. According to the emulsion injecting beam for the cold-rolling mill provided by the utility model, the flow uniformity of liquid injected by the nozzles on the injecting beam can be effectively enhanced, and the injecting distributing uniformity and lubricating effect of an emulsion on the surface of the steel plate can be effectively ensured when the emulsion injecting beam is used in the cold-rolling mill. Meanwhile, the emulsion injecting beam for the cold-rolling mill provided by the utility model can be further applied to fields of injecting liquids such as hot rolling production devices and the like. Besides a certain requirement on the installation space, the emulsion injecting beam for the cold-rolling mill has no extra requirements on field production and operation, and has higher application and popularization value.

Description

A kind of emulsion spray beam of used for cold rolling mill

Technical field

The utility model relates to lubrication technical field, particularly a kind of emulsion spray beam of used for cold rolling mill.

Background technology

The modern steel smelter generally can heat to reach and is easy to machining, is out of shape or lets the metal material interior tissue reach certain reservation state in process of production producing material; Simultaneously, can use different gas and liquid to cool off to the metal material after the heating is conventional, to reach the purpose that produces different cooling rate.When the production process of strip material metal material, cooling is sprayed on the steel plate two sides simultaneously for the uniformity that guarantees to cool off can adopt nozzle.

The spray beam structure that ejection medium adopted mainly is divided into following two kinds, and first kind of spray beam is: a house steward, and cooling medium flows into wherein and delivers into through shunting in two arms at an end of arm; Each nozzle is installed on the arm; Along the cross direction profiles of band steel, the branch stream interface between house steward and arm is in a side of band steel, under this structure; The feed liquor house steward is distributed in a side of arm; The structure of whole spray beam is comparatively compact, and space utilization efficient is higher, often is installed in the narrow and small occasion in space.Under this kind pattern, the pressure reduction that the liquid that flows into from house steward flows to each nozzle on the arm is difference to some extent, and under the pressure of 3-8bar commonly used in the industry, differ greatly, and there is the difference of 3-7% usually in the cooling medium consumption that generally causes different spray nozzles to spray;

The structure of another kind of spray beam; With preceding a kind ofly different be; Single or a plurality of injection arms are arranged in the centre position of spray beam in this kind structure, and so the spray beam of design can partly be improved the flow difference problem that each nozzle ejection goes out, but in the use of reality; Under common industrial use expulsion pressure, still can there be the difference of 2-5%.

In smelter, adopt the spray beam structure of above-mentioned design to be used in the cooling production of hot-strip base, can cause the discharge difference of the local contact of steel billet material, finally cause the performance of the blank that exerts an influence of the even problem of inhomogeneous cooling.And in cold rolling production process, use; Owing to contain certain density lubricating oil and water simultaneously in the cold-rolling emulsion, in the pipeline transportation process of emulsion, profit is easy to separate; If the spray beam via said structure is ejected on the band steel; The final difference that not only can cause each nozzle ejection flow can cause that also injection gives birth to bigger difference from the volume production of the ROLLING OIL of each nozzle, cause the difference of steel plate layout lubricating condition and cause surface of cold-rolled steel plate roll back mottling and aberration problem.In a word, the flow difference of above-mentioned spray beam all can influence the quality of producing product.

Chinese patent CN 200991716Y discloses " bindiny mechanism of device before milling train spray beam and the machine "; It can cause hose bending to roll over the injection deficiency of flat influence in the face of traditional milling train adopts flexible pipe to connect when spray beam is carried liquid; Proposed a kind of novel mechanical structure and the connection flexible pipe of milling train spray beam has been installed on the spray beam fixed frame before the milling train the main spray beam installation frame that improves of this invention.

Chinese patent CN 201744493U discloses " the rapid drainage arrangement of emulsion spray beam "; It is shut down to milling train, and residual emulsion can drop onto the problem that influences plate face quality on the band steel in the later emulsion spray beam; The device of remaining emulsion in spray beam when proposition increases a magnetic valve and pipeline and is used to carry milling train to shut down on traditional milling train spray beam; This invention is set up one road pipeline and valve outside traditional spray beam structure, the spray beam body is not improved.

Chinese patent CN1704486A discloses " gas jet cooling device "; It has proposed method and device that a kind of novel jet gas is used for the salband steel, and different with the conventional spray beam is that the main case body equipment structure that adopts a row to have a plurality of pore structures is used for the salband steel.

Summary of the invention

The purpose of the utility model is to design a kind of emulsion spray beam of used for cold rolling mill; Promote the flow homogeneity of each nozzle ejection liquid on the spray beam effectively; Can effectively guarantee to spray spray distribution uniformity and the lubricant effect of emulsion when in cold-rolling mill, using simultaneously, at surface of steel plate.

For achieving the above object, the technical scheme of the utility model is:

A kind of emulsion spray beam of used for cold rolling mill, it comprises, upper and lower ring pipe; The centre of upper and lower ring pipe is provided with a connecting pipe and is communicated with; Communicating pipe, the central tube of a wedge tapered configuration was also established at the center, and itself and communicating pipe install with concentric manner, and with communicating pipe inwall keep the certain intervals distance; Upper and lower ring pipe is communicated to house steward through arm respectively; Plurality of nozzles is installed near a side length direction of steel plate along upper and lower ring pipe correspondence.

Further, described nozzle is installed perpendicular to steel plate, or installs by an angle deflection.

The arrangement of nozzles of described upper and lower ring pipe is same central axis, or installation is arranged in dislocation.

Again, described central tube is 95%～50% of its diameter that gets into the porch of communicating pipe diameter that is communicating pipe.

Described central tube is 75～85% of its diameter that gets into the porch of communicating pipe diameter that is communicating pipe.

In addition, described central tube diameter foremost be communicating pipe diameter 30～90%.

Described central tube diameter foremost is preferably 45～65% of communicating pipe diameter.

Adopt the cold-rolling emulsion spray beam of said structure design can guarantee effectively that each nozzle ejection is even to the emulsion flow of belt steel surface; And the concentration of the lubricating oil in the emulsion of each nozzle ejection is even, in the whole flow difference of the next nozzle of expulsion pressure of 4-1 0bar below 3%.

The beneficial effect of the utility model

The utility model can more efficiently promote the flow homogeneity of each nozzle ejection liquid on the spray beam, can effectively guarantee to spray spray distribution uniformity and the lubricant effect of emulsion at surface of steel plate when being used for cold-rolling mill.Simultaneously, this structure can apply to the field of atomizing of liquids such as hot rolling production equipment equally, except installing space being had certain requirement, produced on-site and operation is not had extra demand, has higher application and popularization value.

Description of drawings

Fig. 1 is the stereogram of the utility model embodiment.

Fig. 2 is the sketch map of the utility model embodiment.

Fig. 3 is upper and lower ring pipe and the structural representation of communicating pipe among the utility model embodiment.

Fig. 4 is the A-A profile of Fig. 3.

Fig. 5 is the scheme of installation of nozzle among the utility model embodiment.

Fig. 6 is the scheme of installation of nozzle among the utility model embodiment.

The specific embodiment

Referring to Fig. 1～Fig. 6, the emulsion spray beam of a kind of used for cold rolling mill of the utility model, it comprises; The upper and

lower ring pipe

1,2 of identical shaped structure; The centre of upper and

lower ring pipe

1,2 is provided with a connecting pipe 3 (above ring pipe 1 is example, down with) and is communicated with, communicating pipes 3 center also establish the central tube 4 of a wedge tapered configuration; Itself and communicating pipe 3 install with concentric manner, and with communicating pipes 3 inwall keep the certain intervals distance L; Upper and

lower ring pipe

1,2 is communicated to house steward 6 through arm 5,5 ' respectively; Plurality of

nozzles

7,8 is installed near a side length direction of steel plate 9 along upper and

lower ring pipe

1,2 correspondences.

Further, described

nozzle

7,8 is installed perpendicular to steel plate 9, or installs by an angle deflection.

Referring to Fig. 4, described central tube 4 is preferably 75～85% 95%～50% of its diameter that gets into the porch (A-A face place) of communicating pipe 3 diameter that is communicating pipe 3.Described central tube 4 diameter foremost be communicating pipes 3 diameter 30～90%, be preferably 45～65%.

Referring to Fig. 5, Fig. 6, the arrangement of nozzles of described upper and

lower ring pipe

7,8 is same central axis, or installation is arranged in dislocation.

Each nozzle on the spray beam of employing said structure; The concentration of lubricating oil that the emulsion that sprays contains is homogeneous very; And the emulsion flow of each nozzle ejection is very even, and the maximum stream flow of the emulsion that ejects and the difference between the minimum discharge are no more than 2.5%.Can effectively guarantee the surface quality of rolling cold-rolled steel sheet.

Claims

1. the emulsion spray beam of a used for cold rolling mill is characterized in that, comprise,

Upper and lower ring pipe, the centre of upper and lower ring pipe are provided with a connecting pipe and are communicated with, communicating pipe the center also establish the central tube of a wedge tapered configuration, its and communicating pipe install with concentric manner, and and communicating pipe inwall keep the certain intervals distance; Upper and lower ring pipe is communicated to house steward through arm respectively;

Plurality of nozzles is installed near a side length direction of steel plate along upper and lower ring pipe correspondence.

2. the emulsion spray beam of used for cold rolling mill as claimed in claim 1 is characterized in that, described nozzle is installed perpendicular to steel plate, or installs by an angle deflection.

3. the emulsion spray beam of used for cold rolling mill as claimed in claim 1 is characterized in that, the arrangement of nozzles of described upper and lower ring pipe is same central axis, or installation is arranged in dislocation.

4. the emulsion spray beam of used for cold rolling mill as claimed in claim 1 is characterized in that, described central tube is 95%～50% of its diameter that gets into the porch of communicating pipe diameter that is communicating pipe.

5. the emulsion spray beam of used for cold rolling mill as claimed in claim 1 is characterized in that, described central tube is 75～85% of its diameter that gets into the porch of communicating pipe diameter that is communicating pipe.

6. like the emulsion spray beam of claim 1 or 4 or 5 described used for cold rolling mill, it is characterized in that, described central tube diameter foremost be communicating pipe diameter 30～90%.

7. like the emulsion spray beam of claim 1 or 4 or 5 described used for cold rolling mill, it is characterized in that, described central tube diameter foremost be communicating pipe diameter 45～65%.