阅读说明：本技术 一种用于带钢的均匀冷却型层流冷却系统和方法 (A kind of uniform cooling type laminar cooling system and method for strip ) 是由 黄玲 吕坤勇 王鹏飞 陈杰 于 2019-09-03 设计创作，主要内容包括：本发明提供一种用于带钢的均匀冷却型层流冷却系统和方法,包括有轧制模块和冷却模块；轧制模块,用于对中间带坯进行轧制形成带钢；冷却模块,包括有第一冷却区和第二冷却区；用于获取轧制后的带钢,通过第一冷却区和第二冷却区分别对带钢进行水冷；第一冷却区包括有至少一个加密冷却单元和普通冷却单元；在同一水流压力下,加密冷却单元的单位面积水流密度大于普通冷却单元的单位面积水流密度,是保证带钢冷却效果和性能的主要冷却设备。第二冷却区为精调冷却区,可以对带钢温度精细调整。本发明在对带钢进行层流冷却过程中,通过在第一冷却区的加密层流冷却段设置小口径的喷嘴,能够对带钢进行均匀冷却。(The present invention provides a kind of uniform cooling type laminar cooling system and method for strip, includes rolling module and refrigerating module；Module is rolled, forms strip for carrying out rolling to intermediate made-up belt；Refrigerating module includes the first cooling zone and the second cooling zone；For obtaining the strip after rolling, water cooling is carried out to strip respectively by the first cooling zone and the second cooling zone；First cooling zone includes at least one encryption cooling unit and common cooling unit；Under same water flow pressure, it is the main cooling equipment for guaranteeing strip cooling effect and performance that the unit area jet density for encrypting cooling unit, which is greater than the unit area jet density of common cooling unit,.Second cooling zone is accurate adjustment cooling zone, can be to belt steel temperature intense adjustment.The present invention carries out in laminar cooling process to strip, and small-bore nozzle is arranged by the encryption laminar flow cooling section in the first cooling zone, can uniformly be cooled down to strip.)

1. a kind of uniform cooling type laminar cooling system for strip, which is characterized in that include rolling module and cooling mould Block；

The rolling module forms strip for carrying out rolling to intermediate made-up belt；

The refrigerating module includes the first cooling zone and the second cooling zone；For obtaining the strip after rolling, pass through described the One cooling zone and the second cooling zone carry out water cooling to the strip respectively；First cooling zone includes that at least one encryption is cold But unit and common cooling unit；Under same water flow pressure, the unit area jet density of the encryption cooling unit is greater than institute State the unit area jet density of common cooling unit.

2. the uniform cooling type laminar cooling system according to claim 1 for strip, it is characterised in that: the encryption Cooling unit includes the encryption cooling manifold for water outlet；The common cooling unit includes the common cooling for water outlet Collector；The water outlet diameter of the encryption cooling manifold is less than the water outlet diameter of the common cooling manifold.

3. the uniform cooling type laminar cooling system according to claim 2 for strip, it is characterised in that: described first Cooling zone includes one group or more cooling manifold unit；Encryption cooling manifold quantity in every group of cooling manifold unit is common cold But 2 to 4 times of collector.

4. the uniform cooling type laminar cooling system according to any one of claims 1 to 3 for strip, it is characterised in that: Unit area jet density of the encryption cooling unit in 0.07~0.1MPa of water flow pressure is 60~180 (m³/h)/m²； Unit area jet density of the common cooling unit in 0.07~0.1MPa of water flow pressure is 30~60 (m³/h)/m²。

5. the uniform cooling type laminar cooling system according to claim 2 or 3 for strip, it is characterised in that: described Encryption cooling manifold includes at least the nozzle having for water outlet, and the water outlet diameter of the nozzle is 4~8mm of Φ；It is described common Cooling manifold includes at least the U-shaped gooseneck having for water outlet, and the water outlet diameter of the U-shaped gooseneck is 20~30mm of Φ.

6. a kind of uniform cooling type section cooling method for strip, which is characterized in that the method includes having:

Intermediate made-up belt is rolled, the strip after obtaining rolling；

Water cooling is carried out to the strip respectively by the first cooling zone and the second cooling zone；

Wherein, first cooling zone includes at least one encryption cooling unit and common cooling unit；Same water flow pressure Under, the unit area jet density of the encryption cooling unit is greater than the unit area jet density of the common cooling unit.

7. the uniform cooling type section cooling method according to claim 6 for strip, it is characterised in that: the strip After the encryption cooling unit in the first cooling zone is cooling, carried out using the common cooling unit in the first cooling zone cold But, cooling of first cooling zone to the strip is completed；

Alternatively, the strip is after the common cooling unit in the first cooling zone is cooling, using in the first cooling zone plus Close cooling unit is cooled down, and cooling of first cooling zone to the strip is completed.

8. the uniform cooling type section cooling method according to claim 6 for strip, it is characterised in that: the strip After the encryption cooling unit in the first cooling zone is cooling, after the common cooling unit cooling in the first cooling zone, It is cooled down using the encryption cooling unit in the first cooling zone, completes cooling of first cooling zone to the strip.

9. the uniform cooling type section cooling method according to claim 6 for strip, it is characterised in that: the encryption Unit area jet density of the cooling unit in 0.07~0.1MPa of water flow pressure is 60~180 (m³/h)/m²；It is described common Unit area jet density of the cooling unit in 0.07~0.1MPa of water flow pressure is 30~60 (m³/h)/m²。

10. the uniform cooling type section cooling method according to claim 6 for strip, it is characterised in that: described to add Close cooling unit includes encryption cooling manifold；The common cooling unit includes common cooling manifold；

The water outlet diameter of the encryption cooling manifold is less than the water outlet diameter of the common cooling manifold；

Wherein, the encryption cooling manifold, which includes at least, nozzle for water outlet, the water outlet diameter of the nozzle be Φ 4~ 8mm；The common cooling manifold includes at least the U-shaped gooseneck having for water outlet, and the water outlet diameter of the U-shaped gooseneck is 20~30mm of Φ.

Technical field

The invention belongs to Production technology for hot-continuous-rollestrip strip steel technical field, it is related to the cooling to hot-continuous-rolling strip steel, especially relates to And a kind of uniform cooling type laminar cooling system and method for strip.

Background technique

In the production process of hot-continuous-rolling strip steel, need to carry out section cooling to the strip rolled out from finishing mill, from And guarantee the performance for the strip produced.The basic principle of section cooling is to open number by controlling the collector of laminar cooling system Amount and cooling water flow etc., guarantee the coiling temperature after strip enters coiling machine, so as to improve the metallographic structure and performance of strip. Steel plate rolls out that rear temperature is higher from finishing mill, and the temperature change in laminar cooling system is larger, in cooling procedure steel Structure property of plate etc. can also vary widely, and directly affect the quality for the strip produced, therefore, laminar cooling system Setting form and control method will affect the quality of strip.

On hot-continuous-rolling strip steel production line, section cooling device length is long, and water consumption is big, to final strip at moral character Energy, plate shape are most important.High water tank by machine is generally arranged in section cooling equipment, is divided into several groups, every group of several collectors of setting, Every group of collector number can not be identical.U-shaped gooseneck is set on section cooling equipment collector, and cooling water is entered by collector, from U-shaped goose Neck tube outflow carries out water cooling to the steel plate after finishing mill rolling.And hot continuous rolling section cooling equipment is all made of U-shaped gooseneck at present Pipe, it is uneven to be easy to produce width direction cooling water inflow, and it is even in turn result in strip width direction inhomogeneous cooling, local stress collection occurs In, stress release is uneven during air-cooled after batching, and the strip shape qualities problem such as shape wave, warpage and hogback is caused to occur. Simultaneously because gooseneck bore is larger, water quality is slightly worse to be easy for blocking, or is corroded, to cause water outlet uneven, is caused Strip inhomogeneous cooling is even.

Summary of the invention

In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of uniform coolings for strip Type laminar cooling system and method, for solving problems of the prior art.

In order to achieve the above objects and other related objects, it is cold to provide a kind of uniform cooling type laminar flow for strip by the present invention But system includes rolling module and refrigerating module；

The rolling module forms strip for carrying out rolling to intermediate made-up belt；

The refrigerating module includes the first cooling zone and the second cooling zone；For obtaining the strip after rolling, pass through institute It states the first cooling zone and the second cooling zone and water cooling is carried out to the strip respectively；First cooling zone includes that at least one adds Close cooling unit and common cooling unit；Under same water flow pressure, the unit area jet density of the encryption cooling unit is big In the unit area jet density of the common cooling unit.

Optionally, the encryption cooling unit includes the encryption cooling manifold for water outlet；The common cooling unit It include the common cooling manifold for water outlet；The water outlet diameter of the encryption cooling manifold is less than the common cooling manifold Water outlet diameter.

Optionally, first cooling zone includes one group or more cooling manifold unit；In every group of cooling manifold unit Encrypt 2 to 4 times that cooling manifold quantity is common cooling manifold.

Optionally, unit area jet density of the encryption cooling unit in 0.07~0.1MPa of water flow pressure is 60 ~180 (m³/h)/m²；Unit area jet density of the common cooling unit in 0.07~0.1MPa of water flow pressure is 30 ~60 (m³/h)/m²。

Optionally, the encryption cooling manifold includes at least the nozzle having for water outlet, the water outlet diameter of the nozzle For 4~8mm of Φ；The common cooling manifold includes at least the U-shaped gooseneck having for water outlet, the water outlet of the U-shaped gooseneck Mouth diameter is 20~30mm of Φ.

The present invention also provides a kind of uniform cooling type section cooling methods for strip, and the method includes having:

Intermediate made-up belt is rolled, the strip after obtaining rolling；

Water cooling is carried out to the strip respectively by the first cooling zone and the second cooling zone；

Wherein, first cooling zone includes at least one encryption cooling unit and common cooling unit；Same water flow Under pressure, the unit area water flow that the unit area jet density of the encryption cooling unit is greater than the common cooling unit is close Degree.

Optionally, the strip is after the encryption cooling unit in the first cooling zone is cooling, using the first cooling zone In common cooling unit cooled down, complete the cooling of first cooling zone to the strip；

Alternatively, the strip is after the common cooling unit in the first cooling zone is cooling, using in the first cooling zone Encryption cooling unit cooled down, complete the cooling of first cooling zone to the strip.

Optionally, the strip is after the encryption cooling unit in the first cooling zone is cooling, using the first cooling zone In common cooling unit it is cooling after, cooled down using the encryption cooling unit in the first cooling zone, complete described first Cooling of the cooling zone to the strip.

Optionally, unit area jet density of the encryption cooling unit in 0.07~0.1MPa of water flow pressure is 60 ~180 (m³/h)/m²；Unit area jet density of the common cooling unit in 0.07~0.1MPa of water flow pressure is 30 ~60 (m³/h)/m²。

Optionally, the encryption cooling unit includes encryption cooling manifold；The common cooling unit includes common Cooling manifold；

The water outlet diameter of the encryption cooling manifold is less than the water outlet diameter of the common cooling manifold；

Wherein, the encryption cooling manifold includes at least the nozzle having for water outlet, and the water outlet diameter of the nozzle is 4~8mm of Φ；The common cooling manifold includes at least the U-shaped gooseneck having for water outlet, the water outlet of the U-shaped gooseneck Diameter is 20~30mm of Φ.

As described above, a kind of uniform cooling type laminar cooling system and method for strip of the invention, has following The utility model has the advantages that carried out in laminar cooling process to strip, by before the common section cooling section in the first cooling zone or It is provided with the encryption laminar flow cooling section with nozzle below, strip can uniformly be cooled down.

Detailed description of the invention

Fig. 1 is the uniform cooling type laminar cooling system connection schematic diagram for strip.

Fig. 2 is the connection schematic diagram of refrigerating module in an embodiment.

Fig. 3 is the connection schematic diagram of refrigerating module in another embodiment.

Fig. 4 is the connection schematic diagram of refrigerating module in another embodiment.

Fig. 5 is the uniform cooling type section cooling method flow schematic diagram for strip.

Component label instructions

The first cooling zone M1

The second cooling zone M2

Specific embodiment

Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from Various modifications or alterations are carried out under spirit of the invention.It should be noted that in the absence of conflict, following embodiment and implementation Feature in example can be combined with each other.

Fig. 1 is please referred to Fig. 5.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its Assembly layout kenel may also be increasingly complex.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill Art content obtains in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.

Referring to Fig. 1, including rolling the present embodiment provides a kind of uniform cooling type laminar cooling system for strip Module and refrigerating module；

Module is rolled, forms strip for carrying out rolling to intermediate made-up belt；In the embodiment of the present application, rolling module is used It is manufacture craft in the prior art.As an example, being formed has width after for example rolling intermediate made-up belt by mm finishing mill unit Degree, thickness and convexity, the strip with certain size.Strip in the present invention includes pipe line steel and high-strength steel etc..

Refrigerating module includes the first cooling zone M1 and the second cooling zone M2；For obtaining the strip after rolling, by the One cooling zone M1 and the second cooling zone M2 carries out water cooling to strip respectively；First cooling zone M1 includes common cooling unit and extremely A few encryption cooling unit；Under same water flow pressure, the unit area jet density for encrypting cooling unit is cold greater than common But the unit area jet density of unit.

Specifically, in the embodiment of the present application, the common cooling unit in the first cooling zone M1 is common section cooling section； Encryption cooling unit in first cooling zone M1 is encryption laminar flow cooling section, and the second cooling zone M2 is accurate adjustment layer cooling section.Wherein, Common unit area jet density of the section cooling section in 0.07~0.1MPa of water flow pressure is 30~60 (m³/h)/m²；Encryption Unit area jet density of the section cooling section in 0.07~0.1MPa of water flow pressure is 60~180 (m³/h)/m²；Accurate adjustment layer Flowing unit area jet density of the cooling section in 0.07~0.1MPa of water flow pressure is 30 (m³/h)/m²。

In one exemplary embodiment, as shown in Fig. 2, strip is cooling by the encryption cooling unit in the first cooling zone M1 Afterwards, it is cooled down using the common cooling unit in the first cooling zone M1, completes cooling of the first cooling zone M1 to strip.Tool Body, strip first passes through encryption laminar flow cooling section and carries out water cooling, carries out water cooling using common section cooling section, it is cold to complete first But cooling of the area M1 to strip.Encryption laminar flow cooling section is set in common section cooling section front in the embodiment of the present application, right In strip cooling procedure, uniform water cooling first can be carried out to strip, then carry out conventional water cooling.

In a further exemplary embodiment, as shown in figure 3, strip is cold by the common cooling unit in the first cooling zone M1 But it after, is cooled down using the encryption cooling unit in the first cooling zone M1, completes cooling of the first cooling zone M1 to strip. Specifically, strip first passes through common section cooling section and carries out water cooling, carries out water cooling using encryption laminar flow cooling section, completes first Cooling of the cooling zone M1 to strip.Encryption laminar flow cooling section, In are set at common section cooling section rear portion in the embodiment of the present application To in strip cooling procedure, uniform water cooling can be carried out again to the strip after conventional water cooling has been carried out.

In a further exemplary embodiment, as shown in figure 4, strip is cold by the encryption cooling unit in the first cooling zone M1 But cooling using the encryption in the first cooling zone M1 after the common cooling unit cooling in the first cooling zone M1 after Unit is cooled down, and cooling of the first cooling zone M1 to strip is completed.Specifically, strip first passes through encryption laminar flow cooling layer and carries out Water cooling carries out water cooling using common section cooling layer, carries out water cooling again through encryption laminar flow cooling layer, it is cold to complete first But in area M1 strip cooling.

In some exemplary embodiments, encryption cooling unit includes encryption cooling manifold；Commonly cooling unit includes There is common cooling manifold；The bore dia for encrypting cooling manifold is less than the bore dia of common cooling manifold.Specifically, encryption laminar flow is cold But section be provided with bore dia be 4~8mm of Φ encryption cooling manifold, common section cooling section be provided with bore dia be Φ 20~ The common cooling manifold of 30mm.As an example, encryption cooling manifold can be for example made of nozzle, general in the embodiment of the present application Logical cooling manifold can be for example made of U-shaped gooseneck.

According to the above exemplary embodiments, the first cooling zone M1 includes one group or more cooling manifold unit；Cooling manifold Unit is made of encryption cooling manifold and common cooling manifold, and the encryption cooling manifold quantity in every group of cooling manifold unit is general 2 to 4 times of logical cooling manifold.Specifically, cooling manifold unit is made of nozzle and U-shaped gooseneck.Wherein, a U-shaped gooseneck Pipe constitutes one group of cooling manifold unit with 2 to 4 nozzles.

It in some exemplary embodiments, further include batching module, for obtaining through refrigerating module strip after cooling, It is coil of strip by strip coiling.Specifically, strip is cooled to by refrigerating module meets the temperature for batching requirement, and acquisition, which meets, batches temperature The strip of degree, by downcoiler by strip coiling be coil of strip.

The present invention section cooling section front or behind be arranged encryption laminar flow cooling section, water flow pressure 0.07~ When 0.1MPa, the unit area jet density of encryption laminar flow cooling section is 60~180 (m³/h)/m², it is greater than conventional laminar flow cooling section 30~60 (m³/h)/m², can be realized the refrigerating mode of more steel grades, more specifications.The setting of laminar flow cooling section is encrypted with uniformly cold But the nozzle of effect, the water outlet aperture of nozzle are 4~8mm of Φ；After nozzle, the water outlet diameter of nozzle is less than U-shaped goose The water outlet diameter of neck tube, encryption laminar flow cooling section water and jet density permanence condition under, water distribution more evenly so that Cooling effect on strip width direction is more evenly.Uniformity cooling is carried out by nozzle, it is constant in total Water and refrigerating mode In the case where, cooling effect more evenly, better plate shape can be obtained.The quantity of nozzle is 2 to 4 times of U-tube, other are cold But region still uses U-shaped gooseneck, can not only guarantee good cooling effect and plate shape in this way, but also saves investment.The present invention It does not need that high service system is separately provided, construction investment is low；Present device is simple and reasonable for structure, is not changing hot continuous rolling Under conditions of section cooling equipment basic structure pattern, the cooling uniformity in strip width direction is improved；Good product quality, it is attached Value added height.

Referring to Fig. 5, the present invention also provides a kind of uniform cooling type section cooling method for strip, method includes Have:

S1 rolls intermediate made-up belt, the strip after obtaining rolling；In the embodiment of the present application, using existing skill Manufacture craft in art.As an example, for example by intermediate made-up belt by mm finishing mill unit roll after, formed have width, thickness and Convexity, the strip with certain size.

S2 carries out water cooling to strip respectively by the first cooling zone M1 and the second cooling zone M2；

Wherein, the first cooling zone M1 includes common cooling unit and at least one encryption cooling unit；In same water flow Under pressure, the unit area jet density for encrypting cooling unit is greater than the unit area jet density of common cooling unit.

Specifically, in the embodiment of the present application, the common cooling unit in the first cooling zone M1 is common section cooling section； Encryption cooling unit in first cooling zone M1 is encryption laminar flow cooling section, and the second cooling zone M2 is accurate adjustment layer cooling section.Wherein, Common unit area jet density of the section cooling section in 0.07~0.1MPa of water flow pressure is 30~60 (m³/h)/m²；Encryption Unit area jet density of the section cooling section in 0.07~0.1MPa of water flow pressure is 60~180 (m³/h)/m²；Accurate adjustment layer Flowing unit area jet density of the cooling section in 0.07~0.1MPa of water flow pressure is 30 (m³/h)/m²。

In one exemplary embodiment, as shown in Fig. 2, strip is cooling by the encryption cooling unit in the first cooling zone M1 Afterwards, it is cooled down using the common cooling unit in the first cooling zone M1, completes cooling of the first cooling zone M1 to strip.Tool Body, strip first passes through encryption laminar flow cooling section and carries out water cooling, carries out water cooling using common section cooling section, it is cold to complete first But cooling of the area M1 to strip.Encryption laminar flow cooling section is set in common section cooling section front in the embodiment of the present application, right In strip cooling procedure, uniform water cooling first can be carried out to strip, then carry out conventional water cooling.

In a further exemplary embodiment, as shown in figure 3, strip is cold by the common cooling unit in the first cooling zone M1 But it after, is cooled down using the encryption cooling unit in the first cooling zone M1, completes cooling of the first cooling zone M1 to strip. Specifically, strip first passes through common section cooling section and carries out water cooling, carries out water cooling using encryption laminar flow cooling section, completes first Cooling of the cooling zone M1 to strip.Encryption laminar flow cooling section, In are set at common section cooling section rear portion in the embodiment of the present application To in strip cooling procedure, uniform water cooling can be carried out again to the strip after conventional water cooling has been carried out.

In a further exemplary embodiment, as shown in figure 4, strip is cold by the encryption cooling unit in the first cooling zone M1 But cooling using the encryption in the first cooling zone M1 after the common cooling unit cooling in the first cooling zone M1 after Unit is cooled down, and cooling of the first cooling zone M1 to strip is completed.Specifically, strip first passes through encryption laminar flow cooling layer and carries out Water cooling carries out water cooling using common section cooling layer, carries out water cooling again through encryption laminar flow cooling layer, it is cold to complete first But in area M1 strip cooling.

In some exemplary embodiments, encryption cooling unit includes encryption cooling manifold；Commonly cooling unit includes There is common cooling manifold；The bore dia for encrypting cooling manifold is less than the bore dia of common cooling manifold.Specifically, encryption laminar flow is cold But section be provided with bore dia be 4~8mm of Φ encryption cooling manifold, common section cooling section be provided with bore dia be Φ 20~ The common cooling manifold of 30mm.As an example, encryption cooling manifold for example can be nozzle, common cold in the embodiment of the present application But collector for example can be U-shaped gooseneck.

According to the above exemplary embodiments, the first cooling zone M1 includes one group or more cooling manifold unit；Cooling manifold Unit is made of encryption cooling manifold and common cooling manifold, and the encryption cooling manifold quantity in every group of cooling manifold unit is general 2 to 4 times of logical cooling manifold.Specifically, cooling manifold unit is made of nozzle and U-shaped gooseneck.Wherein, a U-shaped gooseneck Pipe constitutes one group of cooling manifold unit with 2 to 4 nozzles.

In some exemplary embodiments, further include obtaining strip after cooling, be coil of strip by strip coiling.Specifically, Strip is cooled to by refrigerating module meets the temperature for batching requirement, batches module and obtains the strip for meeting coiling temperature, passes through ground Strip coiling is coil of strip by lower coiling machine.

The present invention section cooling section front or behind be arranged encryption laminar flow cooling section, water flow pressure 0.07~ When 0.1MPa, the unit area jet density of encryption laminar flow cooling section is 60~180 (m³/h)/m², it is greater than conventional laminar flow cooling section 30~60 (m³/h)/m², can be realized the refrigerating mode of more steel grades, more specifications.The setting of laminar flow cooling section is encrypted with uniformly cold But the nozzle of effect, the water outlet aperture of nozzle are 4~8mm of Φ；After nozzle, the water outlet diameter of nozzle is less than U-shaped goose The water outlet diameter of neck tube, encryption laminar flow cooling section water and jet density permanence condition under, water distribution more evenly so that Cooling effect on strip width direction is more evenly.Uniformity cooling is carried out by nozzle, it is constant in total Water and refrigerating mode In the case where, cooling effect more evenly, better plate shape can be obtained.The quantity of nozzle is 2 to 4 times of U-tube, other are cold But region still uses U-shaped gooseneck, can not only guarantee good cooling effect and plate shape in this way, but also saves investment.The present invention It does not need that high service system is separately provided, construction investment is low；Present device is simple and reasonable for structure, is not changing hot continuous rolling Under conditions of section cooling equipment basic structure pattern, the cooling uniformity in strip width direction is improved；Good product quality, it is attached Value added height.

In conclusion the present invention provides a kind of uniform cooling type laminar cooling system and method for strip, include Roll module and refrigerating module；The rolling module forms strip for carrying out rolling to intermediate made-up belt；The refrigerating module, It include the first cooling zone M1 and the second cooling zone M2；For obtaining the strip after rolling, by the first cooling zone M1 and Second cooling zone M2 carries out water cooling to the strip respectively；The first cooling zone M1 includes common cooling unit and at least one A encryption cooling unit；The unit area jet density of the encryption cooling unit is greater than the unit plane of the common cooling unit Ponding current density.

The present invention replaces bigbore U-shaped gooseneck in encryption laminar flow cooling section, using small-bore nozzle, is keeping adding The constant situation of close section cooling section total Water, can be realized the cooling effect of strip more evenly, guarantee good plate shape.Encryption Section cooling section can be realized the cooling of more steel grades, multi gauge strips steel, and the cooling effect of encrypted section directly influences the group of strip Knit performance and plate shape.It is cooling using nozzle in encryption cooling section, it can be realized good cooling effect, and reduce investment outlay.This hair Bright device structure is simple, reasonable, and construction investment is low, good product quality, and added value is high.The present invention can apply to newly-built or be transformed Hot strip rolling mill.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.

The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.