Steel rolling mill bearing
Performance characteristics: Profile rolling mill adopts multi-row cylindrical or tapered roller bearings. These bearings can evenly distribute the pressure, which solves the problem of high stress on workpiece and bearing seat when steel passes. High reliability of life and greatly improved profile production efficiency.
(1) Spherical roller bearings
The configuration of the rolling mill bearings on the rolling mill was different. At that time, two sets of spherical roller bearings were mainly installed side by side on the same roll neck. This configuration basically meets the production conditions at that time, and the rolling speed can reach 600 rpm. However, with the increase of speed, its shortcomings are more and more prominent: short bearing life, large consumption, low precision of finished products, serious wear of the roll neck, large roll yaw, etc.
(2) Four-row cylindrical roller bearing + thrust bearing
The inner diameter of the cylindrical roller bearing is tightly matched with the roll neck, and it can withstand radial force. It has the advantages of large load capacity, high limit speed, high precision, separable inner and outer rings, interchangeable, easy processing, low production cost, convenient installation and disassembly, etc. The thrust bearing is subjected to axial force, and the specific structure type can be selected according to the characteristics of the rolling mill.
Rolling mill bearing
At heavy load and low speed, it is equipped with a thrust roller bearing to withstand the thrust load with a small axial clearance. When the rolling speed is high, it is equipped with angular contact ball bearings, which not only has high speed limit, but also can control the axial play during operation. The rolls are tightly axially guided and can withstand typical axial load forces. This type of bearing configuration not only has long bearing life, high reliability, but also has many advantages such as high precision and easy control of rolling products. Therefore, it is currently the most widely used, and is widely used in wire rod mills, sheet mills, foil mills, and double support rolls. Support rolls for rolling mill cold rolling mills and hot rolling mills.
(3) Four row tapered roller bearings
Tapered roller bearings can withstand both radial and axial forces without the need for a thrust bearing, making the mainframe even more compact. The inner diameter of the tapered roller bearing is loosely matched with the roll neck. It is very convenient to install and disassemble, but sometimes it will cause sliding creep due to the loose fit. Therefore, the inner diameter is often processed with a spiral oil groove. This type of configuration is still widely used, such as rolls for work rolls, blanking machines, steel beam mills, etc. in four-high hot rolling mills and cold rolling mills.
Four-row cylindrical roller bearings and six-row cylindrical roller bearings are almost exclusively used for roll necks, rollers and rolling mills in rolling stands. These bearings have low friction compared to other roller bearings. Since these bearings are usually mounted on the roll neck with an interference fit, they are particularly suitable for rolling mill applications with high rolling speeds. The low cross-section of these bearings allows the use of a relatively large roll neck diameter compared to the roll diameter. Due to the large number of rollers that can be loaded, its radial load capacity is very high.
Multi-row cylindrical roller bearings can only withstand radial loads. Therefore, these bearings are mounted together with deep groove ball bearings or angular contact ball bearings, or tapered roller bearings of radial design or thrust design, which are subjected to axial loads. The four-row and six-row tapered roller bearings are of separate design, that is, the bearing ring with integral flange and the roller and cage assembly can be installed separately from the separate bearing ring, or all bearing components can be installed separately.
This simplifies bearing installation, maintenance and inspection to a considerable extent. The bearing can withstand a certain amount of axial displacement of the shaft relative to the bearing housing. Four-row cylindrical roller bearings have a cylindrical bore and some sizes of bearings are available with tapered bores. Bearings with tapered bores can be adjusted during installation to achieve a certain radial internal clearance or a defined preload.
Product Description:
NEMA EPACT are three phase induction motors which are single speed, totally enclosed, self-cooled, continuous duty, low voltage and cage type. The motors conform to NEMA MG1 standard and adopt casting iron frames. The efficiency meets America NEMA EPACT standard. Service factor is 1.15. The motors have passed America CC certificate and Canada CSA certificate.
| Product Name |
NEMA EPACT Hight Efficiency Three Phase Induction Electric Motor (Design A, B) |
| Frame |
143T~587T; |
| Rated power |
1-500HP,Service factor: 1.1 |
| Rated Voltage |
230/460V,460V or 575V |
| Rated frequency |
60Hz |
| Structure |
TEFC (IP54,IP55) |
| Thermal Class |
155 (F) |
| Main Application |
AC motors have high efficiency, no smoke, no smell, no pollution to the environment, and less noise. Because of its series of advantages, it is widely used in industrial and agricultural production, transportation, national defense, commercial and household appliances, medical and electrical equipment and other fields. |
Continues Casting Machine with CE certificated
Price and Equipment List for R6m, 3strands, 12meter billets CCM
NO:CCM6312
I.Technical data
1. CCM
Casting radius:R6m
Billet specification:100*100, 130*130, 150*150
Strand number:Strands 3 strands
Dummy bar:Rigid dummy bar
Ladle support:80t ladle turret
Cutting way:Automatic flame cutting machines
Electrical system:Siemens Transducer, Siemens PLC, SCHNEIDER contactors.PLC automatic controlling
Billets Size:6m\12m
Pusher-type:Hydraulic pressure system, Mechanical car type.
2.Water system
A.Mould cooling water
Influent pressure:P≥0.9Mpfa
Influent temperature:≤35C
Influent effluent temperature difference:6-10C
pH:7.5-9
Water total hardness:≤150mg/L
Flow:≥360Nm3/h
B.Secondary cooling water
Hydraulic:P≥0.6Mpa
Impurity particle size:≤0.2mm
Flow:≥80Nm3/h
C.Machinery cooling water
Hydraulic:P≥0.6MPa
Impurity particle size:≤0.5mm
Flow:≥60Nm3/h
3.Gas System
A. Oxygen
Pressure:P≥0.9Mpa
Purity:≥99.5%
Flow:≥4Nm3/min
B. Gas
Pressure:P ≥0.3MPa
Combustion value:≥93700KJ/m3
Flow:≥1.5Nm3/min
C. Compressed air
Pressure:P ≥0.5MPa
Flow:Q≥5Nm3/min
Withdrawal straightening machine
Power:11KW
Rated revolution:1500/min
Billet withdrawing force(max):11000N
Straightening force (max):220000N
Tension speed range:0.3-3.0m/min
Dummy bar speed (max):3.99m/min
4.Central hydraulic station
System pressure:P≥8.0MPa
System flow:Q=37.5L/min
II.Supply cope
1.On-line equipment list
No Equipment name Unit Qty. Remark
1 Ladle turret PC 1 100t capacity for each arm
2 Tundish moving car PCS 2
3 Tundish PCS 2
4 130sq.Mm mould PCS 3
5 Mould cover SETS 3
6 Oscillation device SETS 3
7 Secondary cooling manifold(stainless steel) and support SETS 3
8 Guide section for secondary cooling SETS 3
9 Steam drainage system in the secondary cooling system SET 1
10 Withdrawal straightening machine SETS 3
11 Dummy bar PCS 3
12 120sq Dummy head and transition head SETS 3
13 Dummy bar guide wheel SETS 3
14 Dummy bar storage device SETS 3
15 Dummy bar heat protetion cover PCS 3
16 Roller table before cutting Group 3
17 Transmit roller table Group 3
18 Discharge roller table Group 3
19 Transverse pusher SET 1
20 Cooling bed SET 1 Step by step
21 Overflow chute PCS 6
22 Hydraulic station system SET 1
23 Cooling water distribution system SETS 3
24 Electrical system SETS 3
A Power supply conbinet SET 1
B Frequency conbinet SETS 3
C PCL conbinet SET 1
D Main operating table SET 1
E Suspension operating box SETS 3
F Small operating box SETS 3
27 Steel structure platform Batch 1
A Main operating platform
B Temperature test platform
C Dummy bar storage platform
2\Auxiliary equipment
No. Equipment name Unit Qty. Remark
1 Water pipe, connector valve.etc Batch 1
2 Various cable, tube.etc Batch 1
3 Drainage gun PCS 3
4 Cutting gun PCS 3
2. Price:USD FOB Shanghai.
3. Lead time;100 days
4. 30% advance payment, 30% payment 20 days after first payment, 40% payment
Paid before date of shipment.Management Installation:(we consider send 3 engineers to your factory), ACCOMMODATION AND TRANSPORTATION COSTS will be paid by buyer.Totally overse charges paid by buer.
The buyer shall compensate the experts at USD 150 per day for delaying time per engineer.The seller should be responsible for the scene testing;After normal melting the seller should be responsible to guarantee repair or change of the faulty components in 6 months
Delivery by 1 piece frame container, 1 piece 40HQ container, 5 pieces 40GP container.
.
dust removal equipment water bath dedusting equipment
Features of electric furnace dust removal system:
1) Dust removal system equipment has strong reliability, not affecting the normal operation of smelting, easy for maintenance.
2) Gas flue capture mode belongs to the whole process of capturing.
3) Gas flue capture rate is more than 98 percent, can achieve plant roof, can not see smoke
4) Dust collection efficiency is more than 99 percent
5) Dust concentration in the workshop is less than 10mg/m3.
6) Low cost for long-term operating , stable efficiency
7) The wind engine noise is less than 80dB.
8) The flue has no dust fouling phenomenon
9) Dust collecting volume is more than 12Kg / t steel
Induction furnace is used for smelting or insulating ferrous metals, non-ferrous metals, sponge iron, such as scrap iron, scrap steel, copper, aluminum and so on. Complete working equipment such as continuous casting machine, rolling mill, mainly used for the production of billet, steel bar, angle steel, H-beam, I-beam, etc. Using KGPS, IGBT, single or double power supply technology, PLC (Siemens) can be realized throughout the monitoring.
Main supply list: 2 sets of electric furnace body, 2 sets of hydraulic or mechanical tilting electric furnace mechanism, 1 set of control platform, 1 set of intermediate frequency control cabinet (6 pulse 1, 12 pulse 2, 24 pulse 4), low voltage control cabinet (6 pulse 1, 12 pulse 2, 24 pulse 4), 1 set of capacitor cabinet, 4 or 8 water-cooled cables; 1 water temperature alarm, 1 leakage alarm; 1 crucible mold, 1 liquid One batch of pressure steel pipe, one set of copper row, three water tanks. Transformer, cooling tower, furnace builder, furnace lining ejector, furnace cover.
Product Model: GW1.5-IGBT-1300-0.5-B
Dual output with a set of power supply, can supply power to two sets of furnaces simultaneously, to achieve "one for two", total power can realize stepless free distribution on two sets of furnaces. Equipping two sets of furnaces, one is used for melting or heating refining , the other is used for insulation and casting, and two sets of furnaces can mutual replace to use. Medium frequency power supply device of IGBT transistor module can be used for melting, induction heating, heating treatment.
Main Technical Parameters
| No. |
Item |
Technical Parameters |
| 01 |
Furnace rated capacity (steel) |
1.5t |
| 02 |
Rated power of medium frequency power supply (1000+300) |
1300kW |
| 03 |
Maximum power of single furnace output |
1000kW |
| 04 |
Rated frequency |
500Hz |
| 05 |
Working temperature |
1600ºC |
| 06 |
Melting rate(Rated loading material, concentrate, density, the third furnace, auxiliary time not counting) |
1.6t/h |
| 07 |
Power consumption(Rated loading material, concentrate, density, the third furnace, auxiliary time not counting) |
600kWh/t |
| 08 |
Cooling water consumption- medium frequency power supply cabinet |
30m3/h |
Supply Range of Complete Set
| No. |
Item |
Unit |
| 01 |
IGBT-1300(1000+300)-0.5-B medium frequency power supply device of transistor module |
1set |
| 02 |
"Medium frequency power supply cabinet using closed cycle water cooling device"(Set in the rectifier cabinet) |
1set |
| 03 |
Air conditioning refrigeration equipment (Set in frequency power supply device) |
4 sets |
| 04 |
GW1.5t Melting Furnace |
2 sets |
| 05 |
Hydraulic actuator(including hydraulic pump station, console, hydraulic oil tubing) |
1set |
| 06 |
Water-cooled cable |
8sets |
| 07 |
Cooling water dispenser(used for inductor and water-cooled cable) |
2 sets |
IGBT Dual track working GW1.5-IGBT-1300-0.5-B
IGBT technology b GW3-IGBT-2000-0.2-B
furnace with cover GW1-IGBT-800-1-B
KGP-7t-5000-dual
We provide PS steel chip crusher 2018
PS series steel chip crusher, used to crush all kinds of car scraps, shavings and cuttings into 20-50mm scraps, in order to enter the chip and machine (metal chip briquetting machine) for briquetting treatment.
[Features]
1 Hydraulic system is adopted to effectively solve the overload protection problem;
2 Hydraulic motor, high torque, saving power;
3 PLC control.
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List of 450 heavy scrap crusher
Serial
number Name Specifications
(mm) Qty Remarks
1 Crusher shell 50mm 1 set Q235, plate thickness 50mm
2 Host hammer High manganese
steel 1 set 16 pieces, each hammer
head 80kg
3 Circular cutter High manganese
steel 1 set 16 pieces, 45kg for each
round cutter
4 Rotor disc φ1100 1 set Outer wear electrode welding
5 Spindle Diameter 390mm 1 root
6 Sieve plate φ65×100 1 set Steel casting ZG45
7 Motor 220KW 2 sets
8 Starting cabinet Soft start 1 set Control equipment operation
9 Hydraulic pumping station Matching 1 set
Unpacking cylinder, movable
plate cylinder,
Forced feed cylinder
10 Dust removal system Matching 1 set Cyclone dedusting,
pulse dedusting
11 Feeding machine 1 set
12 Magnetic separator 1 set
13 Loader heavy conveyor 1400×12000 1 set
14 Discharge belt conveyor 1000×10000 1 set
15 Belt conveyor 1000×8000 1 set
16 Waste belt conveyor 800×6000 1 set
1.Product principle and Application
The crushing production line uses the principle of hammering. Under the drive of a high-speedand high-torque motor, the hammers on the host rotor take turns to hit the objects to be crushed in
the cavity. Through the space formed between the liner and the hammers, After the crushed object
is torn into a crushed object conforming to the specifications, a high-quality crushed material with
high purity can be obtained under the action of a magnetic device.
This production line is used to process waste car body, tinplate, household appliances,
bicycles, empty cans and other lower scraps to make it into a superior steel making raw material.
The machine continuously crushes, removes the coating film, increases the specific gravity of the
volume, prevents the electric furnace from exploding, and improves the water output rate under
certain conditions.
2.Technical conditions
1.1 (1) Ambient temperature: -20 ºC -40 ºC
(2) Production staff: 3-5 people
(3) Installation method: According to the installation diagram, the technicians guide the
installation
1.2 Power supply
(1) Three-phase four-wire 380V AC (±10%), 50HZ (±2%)
(2) Low-voltage power supply of the equipment: 380v / 50hz;
Working lighting power: 220v / 50hz;
3.Processing object
1. Waste car body (excluding engine, reduction gear box, tire, etc.);
The 450KW crushing line needs to be broken into squares not larger than 800mm * 800mm
when crushing colored steel tiles.
2, Tinplate (cans, etc.)
3. Iron sheet for home appliances (excluding motors, compressors, shafts, etc.)
4. ≤6mm light and thin materials and similar domestic waste
25, Empty cans (wash out thin materials, coatings, etc.), non-sealed cans.
Note: After all the processed materials have been preliminarily processed, the shape and
volume need to ensure that they can smoothly enter the main machine inlet. (Such as cans, small
paint buckets, color steel tiles, car shells, etc.)
4.Not suitable for broken objects
1 Dangerous things:
a Sealed container, conduit, etc .;
b. Items that may cause an outbreak, fire, etc .;
2 Scrap cars:
a. Subjects other than passenger cars;
b. Engine, converter, differential gear, tire;
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