What is Walking Beam Cooling Bed?

What is Walking Beam Cooling Bed?

Walking Beam Cooling Bed Introduction: 

(1) The Usage of Walking Beam Cooling Bed: Arranged behind the rolling mill for cooling of finished steel and bar products. Cooling finished product specifications Φ10 ~ 40mm rebar, Φ10 ~ 50mm round steel. The steel grade is plain carbon steel, excellent carbon steel, and low alloy steel. The speed of the large finished product is 16m/s and the annual production capacity is 600,000 tons.

(2) The rolling mill cooling bed type is the walking beam type of the rack. The effective size of the bed is 96000×9500mm. The large length of the steel is 90m, the pitch of the tooth is 100mm, the thickness of the rack is 18mm, the spacing of the static rack is 300/600mm, and the distance between the racks is 300/. 600mm.

(3) Walking beam cooling bed input roller: roller diameter Φ188mm, roller length 190mm, roller distance 1200mm, inclination angle 12°, drive type single machine drive, variable frequency speed regulation, irreversible, roller line speed 4.5~20m/s(max), motor YVPG100L2-4 , 2.2KW, 1500rpm, each motor with axial flow fan 125FZY2-S, 25W, 220V, 50HZ, the number of 115; 6 free rolls.

(4) Walking beam cooling bed dial-in mechanism: the width of the dial-in block is 150mm, the length of the dial-in block is 138m, the angle between the dial-in block and the horizontal is 35°, the angle between the dial-in block and the vertical is 12°, and the speed of the dial-in block is 0.15~0.3m/s. The dial-in block is lifted and hydraulic cylinder Φ63/Φ45x90. Pneumatic gear cylinder QGAIIΦ80×20-MP4, 1; compressed air working pressure 0.4~0.6Mpa, cycle 4s~12s.

(5) Walking beam cooling bed surface drive: main motor Z4-280-21, 132kW, speed 750/1600rpm, 2 sets; photoelectric encoder LAKESHORE, 2; reducer A=508mm, I=41, 4 sets; eccentric wheel eccentricity 50mm. The rack moves once the steel stroke by 100mm.

(6) Alignment roller path: roller diameter Φ225/165mm, roller length 810mm, effective number of teeth 6, roller surface speed V=1.1m/s, roller spacing 1200mm; reducer BWD1.5-18-11, I=11 , motor Y90L-4, 1.5KW, 1400rpm, the number is 45; the number of free rollers is 18.

(7) Chain type steel transfer machine: Transfer steel specifications ф12 ~ ф50mm. The length of the steel is 90m, the width of the chain transfer machine is 1500mm, the chain spacing is 1200mm, the chain speed is 0.2m/s, the stepping distance is 20~70mm, the transmission motor is YTSP160M-4, 11KW, 1500rpm, AC380V, 2 sets. The center distance of the reducer is 349mm, the transmission ratio is I=1:75, and the number is 2.

(8) Transport trolley: the width of the trolley is 1000mm, the lifting time of the trolley is 1~2s, the round-trip speed of the trolley is ~0.5m/s, the transmission motor: YTSP132S-4, 5.5KW, 1500rpm, AC380V, 2 sets, reducer: A=349mm, I = 1:45, 2 sets. The trolley is lifted and used with a hydraulic cylinder.

(9) Output roller path: roll diameter: Φ188 mm, roll length: 1000 mm, roll distance: 1200 mm, roll line speed: 2 m/s, number of rolls 86, 6 free rolls. Roller motor: YGb112L2-4, 1.5KW, 1450rpm, AC380V, 80 units, reversible.

Since 1989 Hani Tech has been always involved in design, engineering, manufacturing and installation of complete hot rolling mill plant for long products (re-bars, SBQ bars, wire rod, small and medium sections), as well as revamping and upgrading of existing plants. 

Hani Tech is the one-stop manufacturer & supplier able to design, manufacture, install and commission your hot rolling mill plant from A to Z.

Please contact stella@hanrm.com for a quotation.
And free send inquiry to us.
Email: stella@hanrm.com   stellarollingmill@gmail.com
Whatsapp/Wechat:+8615877652925

600,000 TPY Rebar Rolling Mill | Section Mill for Sale

Mini-Metallurgical Plant and 600,000 TPY Rebar Rolling Mill | Section Mill for Sale

The Minimill plant is composed of Melting & Refining shop

FastArc TM AC 70 t tapped steel

Ladle Furnace LF 70 t

Single-tank/single-cover VD/VOD station

FTP for EAF & LF primary and secondary fumes.

Melt shop auxiliary facilities

Continuous Casting Plant: 

3-strand Danieli FastCast TM billet continuous casting machine

Rolling Mill:

80-t/h (or 100-t/h in hot charge) Bar and Light Section Mill
70-ton Ladle Furnace (12/14 MVA transformer).
70 ton VD/VOD station, single-tank, single-cover type.
Raw material handling/charging system for EAF,LF and VD
Fume Treatment Plant for primary and secondary fumes for EAF and LF E C B

The Meltshop:

  A -Arc EAF 70-ton tap weight (64/74 MVA transformer), 5.3-m shell dia, equipped with the latest generation of wall-mounted oxygen/carbon injectors. The casting of specialty and stainless steel ingots

  B -70 ton Ladle Furnace (12/14 MVA transformer).
  C -70 ton VD/VOD station, single-tank, single-cover type.
  D - Raw material handling/charging system for EAF, LF, and VD
  E - -Fume Treatment Plant for primary and secondary fumes for EAF and LF
  F - 3-strand, 9-m-radius FastCast Continuous Casting Machine, for high-speed casting of 130x130, 150x150,180x180-mm quality billets. Direct connection to the rolling mill reheating furnace, for hot-charging operation

PLANT CAPACITY: 500,000 tpy in cold-charge mode(*) Up to 600,000 tpy, in hot-charge mode

STARTING MATERIAL: Billet 150 x 150 x 12,000 mm
                                               180 x 180 x 12,000 mm Weight 2,000 kg and 3,000 kg

STEEL GRADES: Low carbon, concrete reinforcing, low/medium alloy steels

FINISHED PRODUCT:  Rounds (RB) from 16 to 50 mm dia
Deformed Bars (DB) from 10 to 40 mm dia, 4- strand slitting on DB 10, 12 mm dia 2- strand slitting on DB 14, 16 and 18 mm dia

Squares from 14 to 40mm, Flats from 30x6 to 80x25mm; Angles(equal) from 30x3 to 50x7mm; C profiles form 4 to 5

FINISHING SPEED: Up to 12 m/s

 PRODUCT TOLERANCES: According to Local and International Standards

FINISHED PRODUCT SUPPLY: Straight Bar Bundles Length 6,000 to 12,000 mm Weight 1,000 to 5,000 Kg
 (*) Yearly capacity based on a 3 daily shifts working schedule

Reheating furnace: Walking Hearth type capacity 80 t/h (or 100 tph in hot charge)

Roughing Mill: 8 AC driven ESS compact cantilever stands 820/685/585 mm dia in H and V configuration

Intermediate Mill: 6 AC driven SHS housingless stands 475 mm dia in H and V configuration.

Finishing Mill: 6 AC driven SHS housingless stands 430 mm dia in H, V and H/V convertible configuration equipped with automatic quick-changing system
In-line QTB treatment for high tensile deformed bars

Cooling Bed: Rake type Dimensions 54 x 13m equipped with a water spray system

Finishing Services: CLS on-line start&stop Straightening and Cut-to-Length system (multistrand straightener and shear), bundling service, final tying and collecting services

DANIELI AUTOMATION fully integrated system for process technology and equipment control

Please contact stella@hanrm.com for quotation.
And free send inquiry to us.
Whatsapp/Wechat:+8615877652925
Website: https://www.hanrm.com





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Rolling Mill Pass Design

60,000 TPY Rolling Mill for Sale

60,000 TPY Rolling Mill for Sale

1. General specification

1-1. Production capacity:      60,000 TPY

1-2. Material:                        Billet 150sq. 160sq. 150 x 180sq. etc.

1-3. Product type & size:       Chanel 100 x50 ~ 200 x 90

                                              I-Beam 150 x 75 ~ 200 x 100

                                              Angle  90 x90 ~ 130 x130

                                              Unequal angle 100 x 75 ~ 150 x 90

2. Equipment specification

2-1. Reheating furnace       Capacity-25TPH / Type-3-zone / Skid rail

2-2. Roughing mill(R0)   2H stand / Bearing type / PCD550ø / AC motor 600kw-3.3kv

                            / 1pass

2-3. Discaller 1,2             Plunger pump type 2sets / 100~130kg/cm²

2-4. Roughing mill(R1~R4)  3H stand-1,2,3 / 2H stand-4 / Fiber metal type / PCD465ø

 / AC1500kw-3.3kv / 10pass

2-5. Discaller3,4             Ejector pump type 2 sets / 200~250kg/cm²

2-6. Inter-mill(I0)        2Hstand / Bearing type / PCD500ø / AC1500kw / 3.3kv /1pass

2-7. Finishing mill             2H stand / Bearing type / universal type / PCD800ø

/ DC1000kw / 1 pass

2-8. Cooling bed              Rack type / L32m x W11m / run in / run out / take out

2-9. Straightener              Fix H type / AC150kw / roll

2-10. Cushion bed       Rack type / L32m x W4m

2-11. Cold saw            Fix.- Moving 2 sets 

2-12. Packing conveyor        Chain move conveyor

2-13. Stand Roll & Guide

2-14. Straightener roll

2-15. Electric capacity          5,500kw / 22.9kv

2-16. Electric panel         AC mill motor operating panel / DC mill motor driver

     /Control panel / MCC panel / Local panel / Operating desk

2-17. Water treatment          Pump / Operating panel

Free send inquiry to stella@hanrm.com if any needs.
Whatsapp/Wechat:+8615877652925
Website:  https://www.hanrm.com

More News You May Interesting:

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Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Failure Analysis of Cold Mill Roll

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

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Advantages of Hot Rolling Mill

Advantages of Hot Rolling Mills

According to the hot rolling mill manufacturer, the rolling mill is indispensable equipment in modern metal rolling, and we can use two different methods. For example, you can choose hot rolling or cold rolling. Obviously, the two methods are relative.

In fact, what we mean by hot rolling is mainly a process in which rolling is completed above the recrystallization temperature. Roll mill professional manufacturers believe that the use of hot rolling can enjoy some benefits, then, do you know the main advantages of which? Let's take a look at the main content of this aspect.

The mill manufacturer explained that the advantages of the hot rolling mill can be summarized into three aspects. First, the use of hot rolling can significantly reduce energy consumption and reduce costs. In addition, high-metal plasticity can be exerted during hot rolling, and the deformation resistance generated is small, and the metal can be effectively prevented from being severely deformed.

According to the rolling mill manufacturer, the second advantage of using hot rolling is that it can properly improve the processing performance of metals and alloy materials. That is to say, it can crush larger crystal grains and reduce the occurrence of cracks, which is equivalent to reducing defects in the casting process and improving the processing properties of the alloy.

The last advantage is that the hot rolling process is more conducive to continuous and automated. The rolling mill professional manufacturer explained that in this process, we generally use large ingots to reduce the amount of rolling, so it can also improve the efficiency of the work while creating favorable conditions for increasing the rolling speed.

The above is the main advantage of the use of hot rolling by the rolling mill professional manufacturers. I believe that everyone has a clear understanding of this content.

Purchasing Rolling Mill Equipment Quality Priority

Priority Should be Given to Quality When Purchasing Rolling Mill Equipment

Such important processing equipment as rolling mill must be carefully considered when purchasing. Of course, many users will pay more attention to the price first, but also need to consider the quality of the equipment as much as possible.If conditions permit, it is best to visit the rolling mill manufacturer for consideration, so as to see the manufacturing technology of the equipment manufacturer, and also to ensure that the equipment purchased can be put into use after installation.

In fact, when selecting and purchasing rolling mills, the quality and performance of the equipment should be considered first. Because of the quality is not guaranteed, there may be a lot of unnecessary troubles in the later use period, and even may lead to unusable, so we need to give priority to the quality of products, and then choose.

At the same time, the selected new mill also needs to comply with the relevant requirements when it is installed. There are many differences between different rolling mills, so it is necessary to carefully read the instructions for the use and installation of the equipment when installing.Especially when the electronic control system is installed, special attention should be paid to it. Because of the long process layout of rolling line, the requirements of the mutual elevation difference and centerline between the equipment are stricter.

In addition, in the installation operation, it is necessary to select the appropriate installation location. If equipment on rolling line is installed on soft ground, the uneven settlement and displacement of equipments need to be taken into account. This is also the reason why the equipments need to bury the settlement observation points on the basis of central benchmark, datum point, and rolling mill before installation, and make regular measurements. Only when the settlement and displacement become stable can the equipment be adjusted accurately.

In addition, in the work of rolling mill, due to the heavy load, special attention should be paid to the selection of suitable roller bearings. Usually, the mechanical properties of hot rolling mills are better than those of rolling mills, and the properties of steel products are naturally better.

High-speed Wire Rod Mill Line and General Wire Rod Mill Line and Semi-High-speed Wire Rod Mill Line

High-speed Wire Rod Mill Line

High-speed Wire Rod Mill Line is one kind of wire rod mill production line usually refers to the wire rod rolled by "high-speed non-twist rolling mill".

Common low-carbon steel non-twist controlled cooling, hot-rolled wire rod (ZBH4403-88) and high-quality carbon steel non-twist controlled cooling, hot-rolled wire rod (ZBH44002-88). The rolling speed of the high-speed wire rod mill is 80-160 m/s, the weight of each unit (disk weight) is 1.8-2.5 tons, and the dimensional tolerance accuracy is high (up to 0.02mm). In the rolling process, the different requirements of the product can be guaranteed by adjusting the process parameters (especially on the cooling line).

The Difference between High-speed Wire Rod Mill Line and General Wire Rod Mill Line and Semi-High-speed Wire Rod Mill Line (Quasi-High Line)

1. The difference between high-speed wire rod mill line, general wire rod mill line, and semi-high wire rod mill line mainly in the rolling speed and the number of joints.

High-speed wire rod mill line rolling speed is higher, usually 80-160 m/s, the single disc is only cut without joints, compared with the general wire rod mill line has a faster production rhythm, larger disc weight (maximum disc weight can reach 2500 kg), the packaging is usually tighter, beautiful. 

2. Common wire rod mill line refers to the wire rod rolled by "ordinary wire rod rolling mill (usually tandem duplex mill)". The rolling speed is 20-60 m/s, and the weight of each plate is 0.4-0.6 tons (generally seen in the market is three six heads for a large plate). During the rolling process, the product performance can only be guaranteed by air-cooling or air-cooling on the cooling line.

3. The semi-high wire rod mill line is between the two, which is actually a general wire rod mill line with better quality.