CN107838203B - A kind of H profile steel water-cooling cooling device - Google Patents
A kind of H profile steel water-cooling cooling device Download PDFInfo
- Publication number
- CN107838203B CN107838203B CN201711295864.0A CN201711295864A CN107838203B CN 107838203 B CN107838203 B CN 107838203B CN 201711295864 A CN201711295864 A CN 201711295864A CN 107838203 B CN107838203 B CN 107838203B
- Authority
- CN
- China
- Prior art keywords
- foundation pit
- cold bed
- air
- cooling
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/0805—Flat bars, i.e. having a substantially rectangular cross-section
Abstract
The invention discloses a kind of H profile steel water-cooling cooling devices, belong to hot-rolled steel cooling field, including cold bed workshop and cold bed, it is characterised in that: the cold bed entrance of the cold bed workshop and cold bed exit are equipped with entrance foundation pit and outlet foundation pit, and the top of cold bed workshop is equipped with ventilator；Strong air-cooler is installed below cold bed；Entrance foundation pit and outlet foundation pit stretch out outside cold bed workshop, and entrance foundation pit is communicated with outlet foundation pit by foundation pit below cold bed；The entrance foundation pit length, depth are respectively smaller than outlet foundation pit, foundation pit be it is ladder-like, lower rank and outlet foundation pit are horizontal, and upper rank and entrance foundation pit are horizontal.Have rate of temperature fall high compared with prior art, fashioned iron surface is cooling uniformly, the small feature of bending deformation.
Description
Technical field
The present invention is the applying date: a kind of patent application " compound section fashioned iron cooling device " (application on December 9th, 2015
Number: divisional application 201510903439X) is related to a kind of hot-rolled steel cooling device, especially a kind of to be suitable for fashioned iron, especially
It is that H profile steel carries out air-cooled cooling device.
Background technique
Fashioned iron is a kind of structural section for having certain section shape and size, is steel four major varieties (plate, pipe, type, silk)
One of.According to section configuration, fashioned iron divides simple shape and compound section fashioned iron, and the latter is also known as deformed steel, including the latter refers to H
Fashioned iron, channel steel, rail, casement section steel, bending fashioned iron etc. and the flat-bulb steel of shipbuilding.Complicated fashioned iron obtains preparation method and is divided into again
Welding and two kinds of hot rolling, there are intensity defects for the former, so hot-rolled steel section application surface is more extensive at present.
The final temperature of hot rolling is generally 800~900 DEG C, carries out being cooled to 80 DEG C or so later, is situated between according to cooling
Matter is different, cooling to be divided into air-cooled, oily cold, air-cooled, water cooling etc..The key control point of cooling technique is cooling velocity, above-mentioned cooling speed
It is most fast to spend water cooling, it is air-cooled most slow, and oil is cold, air-cooled therebetween.Cooling velocity and cooling means will cause steel tissue
With the fluctuation of performance: in order to obtain superior function, pressure cooling provision is taken after finish to gauge, so that the crystal grain refinement of steel, delivery
Steel have higher comprehensive mechanical property.Cold and hot roll process is controlled at present and is applied to wire rod hot rolling more, for complicated fashioned iron hot rolling, by force
Refrigeration is but easy to influence steel tissue and its cross sectional shape, causes final product quality defect.It forces to be quickly cooled down and can increase steel
Performance, burial pit heat preservation slow cooling, which can reduce the deformation of cooling bring, to be influenced, cooling velocity and cooling zone come deformation this two
Contradiction between person is maximum difficult point in complicated fashioned iron hot rolling cooling technique, this contradiction rail section bigger in specification
It is even more to protrude in production.
In addition, fashioned iron just can be carried out straightening processing when needing to be cooled to certain temperature in process of production, cool down not in time,
It then will lead to the speed of production for being forced to slow down fashioned iron.
In order to alleviate this contradiction, slow cooling cold bed natural cooling scarce capacity is solved the problems, such as, current usual technique is logical
Spraying or water spray the type of cooling can be often directlyed adopt on cold bed, in the hope of accelerating cooling, but this kind of technique not can solve
State problem, however it remains following defects: 1. water-spraying control can make complicated fashioned iron due to inhomogeneous cooling, to Bending Deformation occur；
2. water mist is attached to fashioned iron surface, it is easy that fashioned iron is made to generate corrosion；3. since vapor cannot be discharged in time in cooling procedure,
To cause to corrode to the driving of cold bed region and steel construction；4. water resource is unable to centralized recovery, the significant wastage of water resource is caused.
In order to reduce water spray bring adverse effect, Some Enterprises also attempt to be cooled down with air-cooled, but due to general
Cold cooling velocity of divulging information is slow compared with water cooling, limits the production efficiency of product.And it is common it is single it is air-cooled still will cause Bending Deformation,
And after air-cooled intensity increase, the external environment temperature difference is larger, and the institutional framework exacerbated inside steel is unstable.
It is therefore desirable to which one kind can be rapidly cooled fashioned iron, improve fashioned iron cooling uniformity, improve Section Steel Production
The cooling device of efficiency.
Summary of the invention
Technical assignment of the invention is to provide a kind of H profile steel water-cooling cooling device for the above the deficiencies in the prior art, with
Phase enhances cooling velocity, improves steel production efficiency, and will not bring deformation defect.
The present invention the technical solution to solve the technical problem is that: a kind of H profile steel water-cooling cooling device, including cold bed workshop and
Cold bed, it is characterised in that: the cold bed entrance of the cold bed workshop and cold bed exit are equipped with entrance foundation pit and outlet foundation pit, cold bed
The top of workshop is equipped with ventilator；Strong air-cooler is installed below cold bed；Entrance foundation pit and outlet foundation pit stretch out cold bed factory
Outside room, entrance foundation pit is communicated with outlet foundation pit by foundation pit below cold bed；The entrance foundation pit length, depth are respectively smaller than out
Mouth foundation pit, foundation pit are ladder-like, lower rank and outlet foundation pit level, upper rank and entrance foundation pit level.
The width of above-mentioned foundation pit is greater than or equal to the width of cold bed.
Above-mentioned strong air-cooler and ventilator be it is multiple, multiple ventilator linearly arrange, and ventilator is linearly aligned
Width and cold bed equivalent width, multiple strong air-coolers linearly arrange, the linearly aligned width of strong air-cooler and cold bed
Equivalent width, the air-flow that the spacing of adjacent two powers' air-cooler can enable two powers' air-cooler blow to cold bed intersect.
Above-mentioned strong air-cooler and ventilator number is equal, and the angle between the air outlet and ventilator of strong air-cooler is
15 °~20 °.
After above-mentioned strong air-cooler is mounted in cold bed at one third.
Compared with prior art, the present invention have it is following prominent the utility model has the advantages that
1, using the design of foundation pit at both ends, air is made to enter cold bed by the foundation pit at the both ends of cold bed workshop, hot and cold air exists
Strong convection is formed in motion process, optimized integration is air-cooled.
2, fashioned iron is cooled down without using water mist, therefore fashioned iron and the driving of cold bed region and steel construction non-corroding phenomenon
Occur.
3, by forcing control cold, rate of temperature fall is promoted, hot rolling is reduced to the time loss between correction, improves steel production
Efficiency can satisfy mass rapid degree production yields demand.
4, ladder air cooling technology, although cooling rate cream, fashioned iron surface is cooling uniformly, and bending deformation is small.
Detailed description of the invention
Fig. 1 is the side structure schematic view of comparative example of the present invention.
Fig. 2 is the side structure schematic view of the embodiment of the present invention 1.
Fig. 3 is the side structure schematic view of the embodiment of the present invention 2.
Fig. 4 is the structural schematic diagram that comb part is condensed in the embodiment of the present invention 2.
Fig. 5 is the BD1 operation of rolling schematic diagram of the embodiment of the present invention 3.
Fig. 6 is embodiment of the present invention 3BD2, DRDFOperation of rolling schematic diagram.
Fig. 7 is the embodiment of the present invention 3 through BD2 rolling gained material template portion schematic cross-section.
Specific embodiment
The present invention is further described with specific embodiment with reference to the accompanying drawings of the specification.
For the ease of narration, it is subject to away steel direction, before being into steel direction, after tapping direction is.
Comparative example (air-cooled group conventional): Q235B and Q345B, specification are as follows: 500 × 200 × 10 × 16mm are directed to.
As shown in Figure 1, taking conventional air cooling device, the lower section of cold bed 6 is provided with a plenum chamber 16, the static pressure
A plurality of slit spout 17, the width of slit spout 17 and the equivalent width of cold bed 6 are provided on case 16.When to plenum chamber 16 into
When port passes through air blower input air, air is discharged through plenum chamber 16 by slit spout 17, and air draught is directly blown in H profile steel
Surface on it is cooled down.80 DEG C are down to using 950 DEG C of reference examples of above-mentioned conventional air cooling way, cooling velocity is
14.75℃/min。
Embodiment 1 (air blast cooling group): Q235B and Q345B, specification are as follows: 500 × 200 × 10 × 16mm are directed to.
As shown in Fig. 2, being respectively equipped with entrance foundation pit 31 and outlet base at cold bed entrance 1 and the cold bed outlet 7 of cold bed workshop 2
Hole 37, the width of foundation pit are greater than or equal to the width of cold bed 6, and entrance foundation pit 31 and outlet foundation pit 37 stretch out outside cold bed workshop 2,
Entrance foundation pit 31 is communicated with outlet foundation pit 37 with 6 lower section foundation pit 3 of cold bed.The top of cold bed workshop 2 is equipped with one or more ventilations
Device 4, for example multiple, then multiple linearly arrangements of ventilator 4, and the linearly aligned width of ventilator 4 and 6 equivalent width of cold bed.
The lower section of cold bed 6 is equipped with one or more strong air-coolers 5, multiple strong linearly arrangements of air-cooler 5, strong 5 linear rows of air-cooler
The width and 6 equivalent width of cold bed of column, the gas that the spacing of adjacent two powers' air-cooler 5 can make two powers' air-cooler 5 blow to cold bed 6
Stream can intersect, and will not generate dead angle, so as to avoid H profile steel inhomogeneous cooling.4 number phase of strong air-cooler 5 and ventilator
According to hot-air move towards to dispose Deng, position.Be multiple strong air-coolers 5 and multiple ventilator 4 used in prioritization scheme, quantity and
Spacing is related to 4 parameter of ventilator and steel to be cooled according to 6 length of cold bed, strong air-cooler 5, but in order in the accompanying drawings more
Good performance airflow direction only depicts a pair of strong air-cooler 5 and ventilator 4 in attached drawing.Strong air-cooler 5 is mounted in cold bed 6
Afterwards at one third near, centered on one third is had a common boundary after in cold bed 6, it is long that total distributed distance is no more than cold bed for specific distribution
Spend a quarter.In the present embodiment 5 parameter of strong air-cooler be inlet and outlet diameter 1000mm, 36916 cubes ms/h of air quantity,
371 pa of wind pressure, 1.5 meters of spacing or so between two strong air-cooler 5.Strong 5 air-out direction of air-cooler towards into steel direction, so as to
The top portion ventilation device 4 of the cold bed workshop 2 is blowed in the cold wind for generating strong air-cooler 5, and entire 6th area of cold bed is guided with this
Air flow direction ventilator 4 at.
In the present embodiment, 31 length of entrance foundation pit, depth are respectively smaller than outlet foundation pit 37.Air is by cold bed workshop
The foundation pit at 2 both ends enters cold bed 6: 31 inlet air of entrance foundation pit carries out basic air-cooled, heat absorption rising, by 6 top ventilator 4 of cold bed
It excludes, constantly cold wind is attracted to enter from foundation pit；Entrance foundation pit 31 compare it is shallower, it is internal to turn back design without pillar and bottom surface,
Its reason is the temperature highest of inlet steel, and air needs to take away rapidly heat, but the section again cannot be excessively strong cold, just
Beginning cooling rate is excessively high, influences steel product performance；It is longer relatively deep to export foundation pit 37, its object is to ensure into cold wind
Temperature, lower temperature air inlet one side optimized integration is air-cooled, on the one hand passes through strong air-cooler 5 and realizes air blast cooling.Strong air-cooler 5
Air outlet and ventilator 4 between angle be 15 °~20 °, which has comprehensively considered the ascension of hot-air, it is ensured that efficient stream
It is dynamic.Ladder-like, lower rank and outlet is presented by communicating into foundation pit 3, foundation pit 3 below cold bed 6 with outlet foundation pit 37 in entrance foundation pit 31
Foundation pit 37 is horizontal, and upper rank and entrance foundation pit 31 are horizontal, and has multiple pillars in the lower foundation pit 3 of cold bed 6, and the purpose of the pillar is
Make cold air formed at foundation pit it is multinomial turn back, increase cooling effect, when cold air heat absorption to certain temperature rise exceed cold bed 6
It, just can be rapidly from 4 loss of ventilator when horizontal.In the optimization design of specific implementation, foundation pit 3 can be uneven with bottom surface,
A plurality of groove preferably vertical with steel direction is walked.Its purpose is also: a part of high wind encounters steel blocking and is refracted Hui Ji
In hole, hotter steel section is refracted to by groove, realization circulates, and admixes mutually, tends to temperature uniformly, and from entrance
Foundation pit 31 forms strong convection with two strands of air for entering workshop from outlet foundation pit 37 during the motion, and by cold bed workshop 2
Square ventilator 4 excludes, and in convection process, hotter air rises two strands of air, and colder air drop greatly mentions in this way
High air takes away the speed of heat.Blend stop of laterally turning back is installed in the foundation pit 3 of one third part after cold bed 6.
The specific preferred parameter of the present embodiment are as follows: 6 length of cold bed is 40000mm, and entrance foundation pit 31 stretches out outside workshop
5500mm, outlet foundation pit 37 stretch out the outer 9000mm of workshop.In the specific implementation, need to according to steel type to be cooled, cooling requirement etc. into
The adjustment of row parameter.
The characteristics of embodiment 1 is that structure is simple, and H profile steel is directly down to 80 DEG C by 950 DEG C in cooling procedure, can be even
Speed is advanced, without cooling down stage by stage.H profile steel average cooling rate is about 21.75 DEG C/min.The present invention uses both ends design of foundation pit
With ladder air cooling technology, air enters cold bed, rear one third intersection setting in cold bed 6 by the foundation pit at the both ends of cold bed workshop
Strong air-cooler 5.One third air enters from shallow, short entrance foundation pit 31 before cold bed 6, without design of turning back, rapidly with high fever steel
Material carries out heat exchange, and hot-air is escaped from ventilator 4 rapidly；One third is realized by strong air-cooler 5 in cold bed 6 forces wind
It is cold, and repeatedly turned back by pillar and bottom grooves, increase heat exchange efficiency, the rear that sufficiently exchanges heat is escaped from ventilator 4；
One third air enters from deep, long outlet foundation pit 37 after cold bed 6, design of laterally turning back, for having carried out strong cold cooling
Steel are cooled down twice.Using this kind of type of cooling, cooling velocity is promoted, and under steel cold bed poker temperature difference less than 10
DEG C, to ensure that while increasing cooling rate, it ensure that cooling uniformity.
Embodiment 2 (mixes air-cooled group): being directed to Q235B and Q345B, specification are as follows: 500 × 200 × 10 × 16mm.
As shown in Figures 3 and 4, cold bed 6, entrance foundation pit 31 and outlet foundation pit 37, foundation pit 3, ventilator 4 and strong air-cooler 5
Setting is the same as embodiment 1.
In addition, 6 middle section of cold bed and back segment front (cold section of control) top are laid with condensation comb 9, the water inlet of condensation comb 9 is logical
Water pump 12 is crossed to connect with the water outlet of reservoir 10.It is strong cold due to being equipped with below cold bed 6 during H profile steel air blast cooling
Blower 5, so in cooling procedure, there are biggish temperature differences for the lower regions temperature of H profile steel.It will be injected in condensation comb 9
Cold water, to reduce the temperature difference of H profile steel lower regions.Pressurized water tubes 8, the pressure (hydraulic) water are provided with above 6 front end of cold bed
The water inlet of pipe 8 connect by booster with the water outlet for condensing comb 9, the water outlets of pressurized water tubes 8 pass through overflow valve 11 and
The water inlet of reservoir 10 connects, and is equipped with multiple atomizers 14 linearly arranged, 14 energy of atomizer in pressurized water tubes 8
It is enough to pressurize water mist to 6 middle section fashioned iron upper horizontal of cold bed to sprinkling.Since the water inlet of pressurized water tubes 8 is by condensing comb 9
The water with certain temperature after heat exchange, and mist direction and cold bed 6 are horizontal out, and the water mist sprayed is easy to be evaporated into water steaming
Gas takes away a part of heat, and the air-flow generated by strong air-cooler 5 and ventilator 4 is from 4 runaway of ventilator, so as to make cold bed 6
Temperature decline above preceding middle section, and be again not in that water is fallen.It, will not due to water and not in contact with steel body and cold bed 6
There is the defect of water cooling, pollutes rustization.H profile steel temperature gradient in this way becomes smaller, and thermal stress is small, and structural stress is small, to keep away
Exempt to cause H profile steel bending deformation.Overflow valve 11 can stablize the pressure of pressurized water tubes 8, when the pressure in pressurized water tubes 8 is excessive,
When water can not be sprayed from atomizer 14 in time, the outlet of overflow valve 11 is opened, and water is discharged into reservoir 10, when pressurized water tubes 8
When interior pressure reduction is to desirable value, the outlet of overflow valve 11 is closed, to reach the mesh of the pressure in stable pressurized water tubes 8
's.
Using the above design, the average cooling rate of H profile steel is about 29 DEG C/min.H profile steel in cooling procedure directly by
950 DEG C are down to 80 DEG C, without cooling down stage by stage.Due to being laid with condensation comb 9 in the top of cold bed 6H fashioned iron, make H profile steel cold
But temperature field is relatively uniform in temperature-fall period, to make strong in the upper lower flange of H profile steel and web yield strength, tension everywhere
Degree greatly improves.
Under same steel type, 950 DEG C are down to 80 DEG C, are compared by comparative example, embodiment 1 and 2 data of embodiment, three groups
Cooling velocity is respectively 14.75 DEG C/min, 21.75 DEG C/min, 29 DEG C/min, it will thus be seen that
Embodiment 1, embodiment 2 can be realized the rapid cooling of H profile steel, also, the effect more cooling than embodiment 1 of embodiment 2
Fruit is more preferably ideal, and embodiment 2 condenses comb 9 by being laid in the top of H profile steel, to reduce H profile steel lower regions and abdomen
Temperature difference between plate and the edge of a wing reduces the thermal stress between web and the edge of a wing, avoids web bending, makes H profile steel cold
But temperature field is relatively uniform in temperature-fall period, improves the mean grain size and average yield strength of H profile steel.
Embodiment 3: for the cooling of flat-bulb steel, specific step is as follows for the whole production technology of flat-bulb steel:
(1) first blooming mill (BD1) rolls: after rectangular bloom heating, spreading rectangular bloom for flat blank, width through BD1
Exhibition process is to extrude groove on slab first, then the boss beside groove is flattened.It is rolled by subregion, reduces rolled piece and prolong
It stretches, increase is spreaded, and such absolute spread can make plate than that can have more 30% using conventional spreading, while lesser power can be used
Base sufficiently spreads, and is suitble to spread the slab of big specification.As shown in figure 5, the present embodiment BD1, which is rolled, specifically includes 7 passages: the 1st
Passage extrudes twice groove in slab upper and lower surface respectively；2nd passage flattens the boss between the twice groove；The
3 passages flatten the boss of the twice groove two sides；4th passage extrudes together respectively in the centre of slab upper and lower surface
Groove；5th passage depresses the groove two sides boss；6th passage, is rotated by 90 °, and carries out edging；7th passage, rotation
It 90 degree, spreads again.Absolute spread is than that can have more 30% using conventional spreading in this way.In addition to this, other can be incited somebody to action by BD1
Rectangular bloom spreads also can be used for the mode and hole type design of flat blank.
The rolling of (2) second frame blooming mills (BD2): as shown in the 1~4 of Fig. 6, the resulting flat blank of step 1 is rolled into through BD2
Symmetrical material type, material type both ends thickness, intermediate thin." bulb " of the end of both ends thickness to form flat-bulb steel, the plate of intermediate thin
" web " of the portion to form flat-bulb steel." waveform " is presented in intermediate plate portion, as shown in fig. 7, the waveform is in midpoint
Existing bilateral bilateral symmetry.For the ease of narration, with the upper and lower for narration direction of Fig. 7, in prioritization scheme, " waveform " is
Discontinuous sine curve, there are four wave crests and three trough compositions: four wave crests include two big wave crest 22 and two
Small wave crest 21, described two big wave crest 22 is located at plate portion midpoint two sides, forms small trough 24 between two big wave crest 22, described
The lowest point of small trough 24 is plate portion midpoint；The small wave crest 21 of described two is located at end and plate portion joint, described ipsilateral small
It is big trough 23 between wave crest 21 and big wave crest 22, it is poor using radian that the above curve waveform design sense is, so that in DRDFIt rolls
It is equal to extend ratio during system everywhere, so as to guarantee that mechanical property is equal flat-bulb steel web everywhere.
(3) two frame tandem two-roller mill (DRDF) rolling: as shown in the 5~8 of Fig. 6, through DRDF" waveform " material type is rolled
At initial material, the initial material includes the flat-bulb steel that two symmetrical webs are connected, the symmetrical flat-bulb steel web connection of two of them
There is a recess at place, and recess thickness is less than the thickness at flat-bulb steel web, and angle is less than 180 ° on two symmetrical flat-bulb steel webs.
Its formation being recessed can be with are as follows: processed among the finished product lower roll groove of this milling train with the boss for being recessed and matching, lead to
Cross the depressed section that the boss shuts out junction, or any hole type design that can be completed its recess and be formed.Optimization side
For flat-bulb steel intermediate connections with a thickness of 3mm, every flat-bulb steel web and horizontal line angle are 3 ° in case.Make ball by sunk structure
Band steel can be easier to split, and guarantee split surface quality.
(4) air-cooled air-cooled Compound cooling: gained initial material enters cold bed workshop 2 and is cooled down in step 3, the cold bed factory
Room 2 includes cold bed 6, foundation pit, ventilator 4 and strong air-cooler 5, is set respectively at cold bed entrance 1 and the cold bed outlet 7 of cold bed workshop 2
There are entrance foundation pit 31 and outlet foundation pit 37, entrance foundation pit 31 and outlet foundation pit 37 stretch out outside cold bed workshop 2, the entrance base
Cheat 31 length, depth is respectively smaller than outlet foundation pit 37.Entrance foundation pit 31 is communicated with outlet foundation pit 37 with 6 lower section foundation pit 3 of cold bed, base
3 presentation of hole is ladder-like, and lower rank and outlet foundation pit 37 are horizontal, 31 level of upper rank and entrance foundation pit, and has in the lower foundation pit 3 of cold bed 6 more
A pillar installs blend stop of laterally turning back after cold bed 6 in the foundation pit 3 of one third part.The top of the cold bed workshop 2 is equipped with
Ventilator 4, the lower section of cold bed 6 are equipped with strong air-cooler 5, one third intersection after strong air-cooler 5 is mounted in cold bed 6, by force
5 air-out direction of air-cooler direction is into steel direction, in order to which the cold wind for generating strong air-cooler 5 blows to the cold bed workshop 2
Top portion ventilation device 4, and guided with this at air flow direction ventilator 4 in entire 6th area of cold bed.Flat-bulb steel initial material in this step is cold
But 80 DEG C directly are down to by 950 DEG C during, can at the uniform velocity be advanced, without cooling down stage by stage.Using both ends design of foundation pit and rank
Terraced air cooling technology, air enter cold bed 6 by the foundation pit at the both ends of cold bed workshop 2: 31 air of entrance foundation pit enters naturally carries out base
Plinth is cooling, and cold air heat absorption rises, and is excluded by 6 top ventilator 4 of cold bed, constantly cold wind is attracted to enter from foundation pit；Entrance base
Hole 31 compares shallower, and internal to turn back design without pillar and bottom surface, reason is the temperature highest of inlet steel, air need
Heat is taken away rapidly, but the section again cannot excessively strong cold, the excessively high then Wei Shi body tissue of initial cooling rate and bainite group
A large amount of formation are knitted, steel product performance is influenced.One third realizes air blast cooling, strong air-cooler by strong air-cooler 5 in cold bed 6
Angle between 5 air outlet and ventilator 4 is 15 °~20 °, which has comprehensively considered the ascension of hot-air, it is ensured that efficiently
Flowing, and repeatedly being turned back by pillar and bottom grooves, increases cooling effect, heat exchange efficiency, sufficiently heat exchange rear from
Ventilator 4 escapes；It is gently empty for one third before cold bed 6 that the purpose of 3 step-like design of foundation pit lies also in reduction air blast cooling
Cold influence, reduces Wei Shi body tissue and bainite structure is formed.Outlet foundation pit of the one third air from deep length after cold bed 6
37 enter, and foundation pit posterior transversal is turned back design, and the steel for having carried out cold cooling by force are cooled down twice.Use this above-mentioned kind
Air-cooled air-cooled Compound cooling, (average cooling rate is risen to by 14.5 DEG C/min of common air-cooled cold bed for cooling velocity promotion
22.5 DEG C/min), and under steel cold bed poker temperature difference less than 10 DEG C, to ensure that while increasing cooling rate,
It ensure that cooling uniformity, while also solving super large-scale model flat-bulb steel web because of the deformation of inhomogeneous cooling and self weight generation
With cooling wave problem and cooling too fast Wei Shi body tissue early period and bainite structure largely formed and caused by finished product it is strong
Spend the problem of difference.
(5) initial material cooled down carries out subdivision, aligning.The step is mechanical using subdivision, aligning respectively, can also be straight
Tap into subdivision align Unit erriger, the aligning Unit erriger include straightener and its in front of disc type cutting equipment,
Rolled piece opens the junction cutting of two flat-bulb steels during traveling, it can be achieved that the preferable surface quality of split surface, and real
Present line continuous operations, it is high-efficient.
It should be noted that specific embodiment of the invention is to the present invention have been described in detail, for ability
For the technical staff in domain, its various of progress is obviously changed without departing from the spirit and scope of the present invention
Become all within protection scope of the present invention.
Claims (3)
1. a kind of H profile steel water-cooling cooling device, including cold bed workshop and cold bed, it is characterised in that: the cold bed of the cold bed workshop
Entrance and cold bed exit are equipped with entrance foundation pit and outlet foundation pit, and the top of cold bed workshop is equipped with ventilator；Pacify the lower section of cold bed
Equipped with strong air-cooler；Entrance foundation pit and outlet foundation pit stretch out outside cold bed workshop, and entrance foundation pit and outlet foundation pit pass through under cold bed
Square foundation pit communicates；The entrance foundation pit length, depth are respectively smaller than outlet foundation pit, and foundation pit is ladder-like, lower rank below cold bed
Horizontal with outlet foundation pit, upper rank and entrance foundation pit are horizontal；There are multiple pillars below cold bed in foundation pit, foundation pit bottom surface is recessed below cold bed
Convex injustice installs blend stop of laterally turning back after cold bed in foundation pit below the cold bed of one third part；The strong air-cooler and
Ventilator number is equal, and the angle between the air outlet and ventilator of strong air-cooler is 15 °~20 °, the strong air-cooler peace
After in cold bed at one third；Cold bed middle section and back segment front upper are laid with condensation comb, and the water inlet for condensing comb is logical
The water outlet for crossing water pump and reservoir connects；Pressurized water tubes, the water inlet of the pressurized water tubes are provided with above cold bed front end
It is connect by booster with the water outlet of condensation comb, the water outlet of pressurized water tubes is connected by the water inlet of overflow valve and reservoir
It connects, multiple atomizers linearly arranged is installed in pressurized water tubes.
2. a kind of H profile steel water-cooling cooling device according to claim 1, it is characterised in that: the entrance foundation pit and go out
The width of mouth foundation pit is greater than or equal to the width of cold bed.
3. a kind of H profile steel water-cooling cooling device according to claim 1, it is characterised in that: the strong air-cooler and logical
Wind device be it is multiple, multiple ventilator linearly arrange, and the linearly aligned width of ventilator and cold bed equivalent width, and described is more
A strong air-cooler linearly arranges, the strong linearly aligned width of air-cooler and cold bed equivalent width, adjacent two powers' air-cooler
The air-flow that spacing can enable two powers' air-cooler blow to cold bed intersects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295864.0A CN107838203B (en) | 2015-12-09 | 2015-12-09 | A kind of H profile steel water-cooling cooling device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903439.XA CN105478499B (en) | 2015-12-09 | 2015-12-09 | A kind of shaped steel cooling device |
| CN201711295864.0A CN107838203B (en) | 2015-12-09 | 2015-12-09 | A kind of H profile steel water-cooling cooling device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510903439.XA Division CN105478499B (en) | 2015-12-09 | 2015-12-09 | A kind of shaped steel cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107838203A CN107838203A (en) | 2018-03-27 |
| CN107838203B true CN107838203B (en) | 2019-01-29 |
Family
ID=55665972
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510903439.XA Active CN105478499B (en) | 2015-12-09 | 2015-12-09 | A kind of shaped steel cooling device |
| CN201711295864.0A Active CN107838203B (en) | 2015-12-09 | 2015-12-09 | A kind of H profile steel water-cooling cooling device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510903439.XA Active CN105478499B (en) | 2015-12-09 | 2015-12-09 | A kind of shaped steel cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105478499B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261738A (en) * | 2018-11-16 | 2019-01-25 | 宏源精工车轮股份有限公司 | A kind of fashioned iron processing technology |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD213142A1 (en) * | 1983-01-21 | 1984-09-05 | Thaelmann Schwermaschbau Veb | DEVICE FOR THE CONTROLLED AIR COOLING OF ROLLING GOODS |
| DE3347033A1 (en) * | 1983-03-18 | 1984-09-20 | VEB Schwermaschinenbau-Kombinat "Ernst Thälmann" Magdeburg, DDR 3011 Magdeburg | Cooling bed with additional ventilation devices |
| DD214536A1 (en) * | 1983-03-18 | 1984-10-17 | Thaelmann Schwermaschbau Veb | COOLER BED WITH ADDITIONAL BREATHING EQUIPMENT |
| DD243174A3 (en) * | 1985-05-06 | 1987-02-25 | Thaelmann Schwermaschbau Veb | EQUIPMENT FOR ADDITIONAL BREATHING OF KLEHLBETTEN |
| JP2672000B2 (en) * | 1988-08-17 | 1997-11-05 | 株式会社神戸製鋼所 | Slow cooling device for steel on cooling floor |
| CN201880747U (en) * | 2010-10-29 | 2011-06-29 | 江苏泰富兴澄特殊钢有限公司 | Cold bed device |
| CN204700062U (en) * | 2015-05-14 | 2015-10-14 | 林州凤宝管业有限公司 | Air water spray cooling device on a kind of steel pipe roll road |
| CN205236625U (en) * | 2015-12-09 | 2016-05-18 | 日照钢铁控股集团有限公司 | Shaped steel cooling device |
-
2015
- 2015-12-09 CN CN201510903439.XA patent/CN105478499B/en active Active
- 2015-12-09 CN CN201711295864.0A patent/CN107838203B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107838203A (en) | 2018-03-27 |
| CN105478499B (en) | 2017-12-01 |
| CN105478499A (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106391734B (en) | A kind of piece-wise step type cooling device for hot-rolled high-strength reinforcing bar | |
| CN105499285A (en) | Automatic atomization spray cooling temperature controlling device | |
| CN205402997U (en) | Use plate -fin indirect evaporative cooler's evaporative cooling air -conditioning unit | |
| CN103320725B (en) | A kind of aluminium section bar combines quenching device online | |
| CN105478470B (en) | A kind of production technology of flat-bulb steel | |
| CN107838203B (en) | A kind of H profile steel water-cooling cooling device | |
| CN103406372A (en) | Method and device for cooling high-speed wire rod through air-mist mixed control | |
| CN201346566Y (en) | Medium plate control cooling side spraying system | |
| CN107597842B (en) | A kind of high-strength marine fashioned iron temperature-controlled rolling technique | |
| CN205236625U (en) | Shaped steel cooling device | |
| CN105618492A (en) | Post-rolling fast cooling system for on-line solution treatment of steel plates | |
| CN201883122U (en) | High-efficiency energy-saving metal strip continuous annealing furnace | |
| CN205732312U (en) | Automatic atomising spraying cooling temperature regulating device | |
| CN209222911U (en) | A kind of online water cooling extrusion forming device of I-shaped aluminum profile | |
| CN205701912U (en) | A kind of precision leveller heat sink | |
| CN206351176U (en) | A kind of piece-wise step type cooling device for hot-rolled high-strength reinforcing bar | |
| CN105695729B (en) | A kind of three-dimensional full flow control method of steel plate on-line solution processing | |
| CN207146516U (en) | A kind of double water channel die casting radiators | |
| CN202527486U (en) | Cooling device for hot rolling strip | |
| CN206222473U (en) | Air conditioner room unit and air-conditioner | |
| CN206377788U (en) | New dew point evaporation cooling unit | |
| CN206626974U (en) | Cooler | |
| CN205635696U (en) | Divide vertical district section marquenching equipment suitable for aluminium alloy | |
| CN206083412U (en) | Cooling structure of little stretch reducing mill frame | |
| CN205037781U (en) | Board -like air cooler cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A water cooling device for H-section steel Effective date of registration: 20211222 Granted publication date: 20190129 Pledgee: Rizhao Bank Co., Ltd Pledgor: RIZHAO STEEL HOLDING GROUP Co.,Ltd. Registration number: Y2021980015819 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |