Large diameter round steel automatic intermediate frequency heating belt with three selective heating production lines

Large-diameter round steel automatic heating belt with three options heating production line with data realization, recording, query, printing and other functions; automatic adjustment of power supply temperature and temperature closed-loop control; real-time monitoring and display of electric furnace parameters; automatic prediction of faults and alarms; remote centralized control of electric furnace ; Automatic production of various reports. 
I. Overview

The series heating furnace produced by our company is a fully automatic medium frequency induction series heating furnace with vibration sorting, idler feeding, automatic temperature control and three-level temperature control. It is a real energy-saving electric furnace, and it looks at 340/ ton of electricity .

Second, automatic medium frequency induction series heating furnace :

1. Inductive heating power consumption per ton of blank: 340KW.h ± 5%

2 , with full furnace cold start function, start success rate: 100 %; hot material 100 %. The process temperature can be reached by starting to heat the discharge. And can be forged to Z after a material.

3 , the entire working process full power output, operating power factor is above 0.95 .

4 ,   The main components such as thyristors in the IF inverter cabinet and the main components of the whole line are preferably domestic advanced components. All design components need to be replaced by one level due to procurement difficulties to ensure stable and reliable operation of the equipment.

5 ,   The medium frequency induction heating furnace has a heat preservation function (low frequency operation of the intermediate frequency power supply), and the holding time is not less than 30 minutes.

6. After heating, the various blanks reach the process temperature of different materials ( Z height 1250 ° C ).

7 ,   Material burning rate: ≤   0.5 %.

8   , circuit structure: series inverter.

9. In the case of grid voltage fluctuation of 10 %, the IF output voltage fluctuation is not more than ± 1 %.

10 , the internal copper connection cross-sectional area is large enough ,   To reduce power loss.

Third, automatic control system features:

1. The equipment composition of the automatic control system:

a , industrial grade LCD screen   set

b , a set of industrial control configuration software ( MCGS system)

c , a set of programmable controllers ( SIEMENS   SIMATIC   S7-300 )

d , two-color infrared thermometer 1 ( Raytek , USA )

e , photoelectric and proximity switch 3 sets (Japan OMRON )

f , control cabinet (including variable frequency drive equipment), operation console, etc.

2 automatic control system features:

a , stable and reliable temperature closure control, real-time acquisition, recording, storage process control data and corresponding classification search, query, print function.

b . Real-time display detection of process control effects; during the operation of the equipment, real-time analysis of the follow-up status of the monitoring and diagnosis equipment, prompting Chinese characters for various abnormal situations, and sound and light alarm.

c . Convenient and quick operation mode conversion (just switch the “automatic” “manual” switch on the console to switch between the two. In the self-controlled operation state, it can also manually participate in the power supply or running speed. Adjustment. (The manual adjustment data system will be recorded in real time)

d . According to the need, the operator can implement the verification function of setting password and password, and the management function of production record inquiry and printing authority.

e , clear and friendly operation interface, all kinds of operations at a glance, you can get started without having to memorize the complicated operation rules.

Fourth, automatic medium frequency induction series heating furnace : technical parameters:

5. The scope of supply of automatic medium frequency induction series heating furnace is shown in the following table.