Intermediate frequency furnace -IGBT

A?high frequency?furnace,?working principle and?powerlink:

High frequency?electric furnace is a?coil?which generates a magnetic field,?the molten material?is subjected to a magnetic field?from outside to inside?fever causes themelting?material.

High frequency furnace?electric energy consumption?linkmainly has four aspects:

1?melting raw materials

2?hot metal?insulation

3?cold?start

4?lining sintering

The principle of?high frequency?furnace

The main?problem two,?around the energy-saving?point:

After a?statistical survey?with?10 year 5-8 month,?one ton?hot metal?consumption?is 817KWH,?which molten?ironthermal insulation?material?729KWH,?56KWH,?26KWH?coldlining sintering?furnace,?6KWH.?Melting raw materials?and molten metal?holding?these two links?consumption?accounted for 96%?of?the most?power?link.

High frequency furnace

1?found no?residual?metal?in the furnace?under the condition?of the material,?under the situation of the same power?of?full?furnace?used time?of about 70 minutes,beyond the design?of?feeding time.

2?that do not?pay more attention to the relationship between?density is proportional to the?speed of meltingand?charge?induction?furnace?production?operation process,?the furnace?raw?space?gap is too large,resulting in?melting?speed?increased power consumptionphenomenon.

3?feeding machine?often occurs?the phenomenon of clamping material,?and?processing card?material?prolong thematerial?time.

4 through?careful observation,?every?card?materialposition in?charging car?outlet?baffle?at.

The 5?operator?in?the soup?hot metal?work?not graspingaccurate?weight,?average every?package?than the prescribed?weight?20?kilograms,?resulting in unnecessary waste.

6?because the field?instrument?set?unreasonable,?longer operation?time?of each package,?the?stove?fire?to?pouringover?12 minutes,?prolonging the?holding time?of molten iron in the.

The implementation effect

High frequency furnace

The goal?and?effect,?plans to solve the?energy problemafter the realization of the

The goal?for the?end of 10?tons?of hot metal?will?powerthe realization theory of?value,?from 817KWH?to 600KWH.

Two,?methods and?means to improve?the:

1,?in the high frequency?furnace?retained?a ton of?hot metal?case?charging?melting,?melting?time from 70?minutesto?61 minutes,?one ton?of hot metal?consumption?is reduced from 817KWH to?723KWH.

Pig iron and?scrap steel?block?small first?add 2,operation,?finally adding?recycled scrap,?make the furnacefeedstock?gap?small?density increases,?the?melting?time,lower power consumption,?melt?time from 61?minutes?to?59 minutes,?one ton?of hot metal?consumption?is reduced from 723KWH to?702KWH.

3,?the?charging car?outlet?baffle?demolition,?finallyput an end to the?card?material,?melt?time?reduced from 59 minutes to?50 minutes,?one ton?of hot metalconsumption?is reduced from 702KWH?to 609KWH.

4,?at the scene?to?observe the?position?operatorincreases the?iron?weight display?a big screen,?so the operator?to control?each?ladle?weight,?make?one ton?hot metal?consumption?is reduced from 609KWH to?596KWH.

5,?as the holding time?after?hot metal melting?furtherreduced,?changed the?original?molten iron samplingsequence of operations,?the?previous?15 minutes?beforeremoving impurities from?raw?metal?surface of the?test block?component detection,?improve the?first?sampling ofmelting of?raw?iron,?hot metal on the?surface?ofimpurities?in?waiting for the results of?at the same time,clear,?so?each furnace can save?time?5 minutes?per toniron,?hot metal?consumption?is reduced from 596KWH?to 594KWH.

Adjustment?of?6,?the?station equipment?location,?eachladle?crane?is reduced?to?an action,?a decrease of 2meters?walking distance,?operation time is?reduced by 2 minutes;?the operator?reduces?an action,?a decrease of 2meters?walking distance,?operation time is?reduced by 1 minutes.?The single?ton?hot metal?consumption?is reduced from 594KWH to?592KWH.

The actual?effect of three,?eventually reaching the:

One ton?of hot metal?consumption?dropped to 592KWH,?to achieve the target.?The average?per ton of?hot metalconsumption?fell 28%.?Can save electricity?2530000?yuan per year,?the production?efficiency is increased by 25%.

Industry to promote value

1,?improve the?way?of saving energy and reducing consumption,?namely from?production of man,?machine,material,?method,?every detail?of?the ring.

2,?high frequency?furnace?molten iron?retention?part?soupprocess,?in order to?reduce?the burden?of the?clearance volume,?shortening charging and?melting?time,?so as toachieve the purpose of energy saving.