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    Billet heating furnace

    product description

        


    First, billet heating furnace, billet induction heating furnace, billet heating equipment overview

    PLC automatic control system, domestic assembly, world-class technology, localized service, lowest price

    1. The integrated design of the feeding and discharging mechanism, coil and power supply requires less infrastructure, workshop occupation and installation time.

    2. Parallel intermediate frequency power supply design, AC voltage is converted into DC voltage by diode, and energy conversion efficiency is 96%.

    3. The output power can be adjusted between 10% and 100%. All power ranges can maintain 0.96 power factor, and harmonic distortion is less polluted.

    4, due to the short transmission distance of the power supply, the use of special insulation materials, series-connected power supply inverter measurement current small voltage high, medium frequency single consumption is very low.  

    5. Dynamically monitor the change of the load current of the series resonant coil, and timely control the output power of the power supply to ensure the heating temperature is stable.

    6, other rich detection, self-diagnosis, alarm function and safety protection device.

    7, the import of key components, the use of high-quality electrical components, domestic assembly; world-class technology, localization services and prices.

    8. According to the size of the blank, different heating frequency is selected to save power consumption; the coil is adapted to the diameter of the billet to be 1 times wider.

    9. The embedded operation panel displays the running status of the machine and is used for fault diagnosis; manual or man-machine interface operation mode can be selected.

    10, standard power supply built-in closed internal circulation distilled water cooling system, you can choose the inner water system of the coil or provide a complete set of water cooling solutions.

    11. The pneumatic or variable frequency nip roller feeding mechanism can be selected; the quick extraction and discharging system can eliminate the bonding mechanism and can be equipped with a temperature sorting system.

    Second , billet parameters and process requirements

    2.1Billet size 130x130 mm , 12 m , Billet head temperature: surface 940 ∼C 每 core 1030 ∼C 每 average 960 ∼C

    2.2 Billet tail temperature: Surface 925 ∼C 每 Core 985 ∼C 每 Average 938 ∼C

    2.3 Elapsed time from start to finish: 109 s 每 speed 0.11 m/s 每 output 51.5 t/h

    2.4  150x150 mm 12 m

    2.5Billet head temperature: Surface 949 ∼C 每 Core 1065 ∼C 每 Average 975 ∼C

    2.6Billet tail temperature: Surface 933 ∼C 每 Core 1005 ∼C 每 Average 948 ∼C

    2.7  Elapsed time from start to finish: 145 s 每 speed 0.083 m/s 每 output 51.8 t/h

    2.8 The first mill is required to have the same temperature at the head and tail of the first mill, and the minimum working temperature is 1050 ∼C:

    Third, Determination of the plane arrangement of the power frequency and power:

    According to the maximum size of the billet 150x150 mm 12 m, the calculated frequency range is in the range of 1600 Hz to 600 Hz, and the frequency of the furnace is determined to be 1000 Hz.

    Calculated according to the maximum billet 150x150 mm 12 m weight (2080 kg) and productivity (145 seconds / piece), the required heating power is up to 1500 kw, which can meet all billet heating and insulation.

     

     

    Fourth, Device range and function description:

    1. Equipment range is shown in the table below

    Serial number

    content

    Quantity

    Remarks

    1

    12-pulse rectifier transformer 1500 KVA

    1 set

     

    2

    Connecting copper bars

     

     

    2

    Thyristor intermediate frequency power supply KGPS-1 5 00/1

    2 sets

     

     

     

     

     

     

    3

    Induction heater

    1 set

     

    3.1

    GTR130 (slab size 130x130mm12m)

    1 set

     

     

    GTR150 (slab size 150x150mm12m)

     

     

    4

    Induction heater bed

    1 set

     

    5

    Feeding device

    1 set

     

    6

    Discharge device

    1 set

     

    7

    Power control cabinet

    1 set

     

     

    8

    Temperature control system (infrared temperature measurement and control instrument)

    1 set

     

    8.1

    PLC center console

    1 set

    8.2

    Programmable Controllers

    1 set

    8.3

    LCD screen

    1 set

    8.4

    Double colorimetric infrared thermometer

    (Xi'an Ruiguang)

    1 set

    8.5

    Photoelectric alarm switch

    1 set

    8.6

    Control cabinet

    1 set

     

    A, comprehensive parameters

    Serial number

    project

    Parameter requirement

    1

    Power supply

    1 5 00kw / 3 phase 6 veins

    2

    Number of rectifiers

    12 veins

    3

    Inverter

    SCR parallel inverter

    4

    Rated frequency

    Above 1000Hz

    5

    Line voltage

    660V

    6

    IF voltage

    1600V

    7

    Start success rate

    100%

    8

    Power factor

    Greater than 0.9 2

    9

    Outlet heating temperature

    1150 ∼ C

    10

    Heating temperature rise power consumption

    ≒ 60 ㊣5% kW.h/t

    11

    heating time

    145 seconds / root

     

     

     

    B. Heat exchange cooling water system parameters

    Serial number

    project

    parameter

    1

    Inlet pressure

    0.2-0.4MPa

    2

    Inlet temperature

    5-35 ∼ C

    3

    Effluent temperature

    <55∼C

    The rectifier transformer is a special transformer that provides rectification power for the intermediate frequency electric furnace. The transformer (full copper core oil immersion type) has the characteristics of strong overload capability, less harmonic current and good cooling effect.

    Rectifier transformer technical parameters:

    model:

    Overload type ZS11- 1500 KVA/10KV /660v

    Rated Capacity:

    Se= 1500kva

    Primary voltage:

    U1=10000V㊣5% 6- phase 12-pulse 50HZ

    Primary current:

    I1= 86 A

    Secondary voltage:

    U2= 660Vx2

    Secondary current:

    I2= 650x2A

    Pressure regulation method:

    Three-speed manual non-excitation regulator

    Connection group:

    D/d. -yn11

    Impedance voltage:

    Z75o=6.5%

    effectiveness:

    ≡ 97%

    1500kw intermediate frequency power supply main components and manufacturers

      Serial number

    name

    Specification model

    Quantity

    Manufacturer

    1

    Rectifier thyristor

    KP 1000 A, 20 00V

    12

    Hubei Xiangfan Taiji

    2

    Universal circuit breaker

    DW15- 1600 A

    2

    Zhejiang Zhaoyu

    3

    Thyristor radiator

    SS14-BL

    6

    Wenzhou Love

    4

    Absorption capacitor

    0.47uF2000V

    12

    State-owned 794 factory

    5

    Absorption resistor

    150W15次

    12

    Suzhou Hengde Telecommunications

    6

    Flat wave reactor

    3mH

    2

    self made

    7

    Line reactor

    朴100*16

    6

    self made

    8

    meter

    Type 42

    6

    People's Electric, Shanghai Pujiang

    9

    Copper

     

     

    Copper

    10

    Inverter thyristor

    KK 2000 A, 2 0 00V

    8

    Hubei Xiangfan Taiji

    11

    Thyristor radiator

    SS15-BL

    4

    Wenzhou Love

    12

    Inverter absorption capacitor

    0.47uF2000V

    8

    State-owned 794 factory

    13

    Inverter absorption resistor

    300W15次

    8

    Suzhou Hengde Telecommunications

    14

    Resonant capacitor

    RFM 1.2 - 2 000- 0.5 S

    10

    Shenghe of Zhejiang Construction

    15

    Hydraulic station

     

     

    Shanxi Yuci

     


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    Tel:18037961302 Sales hot line ( 24 hours service): 18037961302
    E-Mail:firstfurnace@gmail.com
    Adress: Luoxin Industrial Park, Luoyang, Henan