電気設備工事、電気炉・工業炉、電気集塵装置の設計・製作・据付の千代田エンジニアリング株式会社

JPEN

Industrial Machinery Equipment

Technological Innovation & Technical Education

電気熔錬炉・工業炉

Our Company has the history of over 70 years of performance in engineering and construction of electric smelting furnaces and industrial furnaces. In the meantime, since 1961 for 30 years, we have exerted efforts actively in technical innovations through collaboration with a Norwegian company, Elkem, in the field of electric smelting furnaces.
The technical collaboration has amicably ended, and now territorial restrictions, etc. have been lifted on both sides, which helped our Company to expand its coverage from Asia to worldwide.

Our Company has carried such efforts subsequently in developing new technologies that provide our users with the world’s largest electric smelting furnaces. These furnaces with the top-notch productivity are operating elsewhere in good order.

In the industrial furnace segment, we capitalize on our unique technologies and experiences accumulated over a long period of time to develop excellent new products, specifically furnaces for smelting incinerated trash ash, producing rock wool, etc. in meeting the diverse needs of our customers.

Flow of electric furnace processing

電気炉プロセスフロー
電気炉プロセスフローシート

Business operations of Industrial Machinery Department

Design and manufacturing of large-size electric smelting furnaces (Soederberg electric furnace, hereinafter referred to as S-electric furnace), and sales of related devices, equipment and parts.

計画から設計・施工・試運転まで一貫システム

Design and manufacturing of large-size electric smelting furnaces (Soederberg electric furnace, hereinafter referred to as S-electric furnace), and sales of related devices, equipment and parts.
We manufacture large-size electric furnaces for smelting ferroalloys from ore. The diameter of our electric furnaces ranges from 15m to 20m, with the electrode measuring as long as 1.5m to maximum 2.0m. At the present time in Japan, where the unit rate of electricity is the highest in the world, we have no order in place domestically but we continue operating our high-value manufacturing of large-size S-electric furnaces. In domestic market, we deliver ferronickel furnaces, renew ferromanganese furnaces and supply parts as part of our important operations.
In overseas markets, new electric furnaces are installed currently, and our Company delivered to Indonesia an S-electric furnace for producing carbide in 2013. In Indonesia, where exports of nickel ore were banned totally in 2013 (which ban was lifted in April, 2017), we received orders from an Indonesian state-owned company for manufacturing electrode devices for ferronickel furnaces in 2017. We are now in the process of consummating delivery in 2018.

Design, manufacturing and delivery of electric furnaces, using man-made graphite electrodes

We design and manufacture electric furnaces which use man-made graphite electrodes.
These electric furnaces are relatively smaller than S-electric furnaces, with diameters ranging from 2m to 7m and electrodes measuring from 150mm to 500mm. They are used at recycling facilities and rock wool production facilities.
Electric furnaces for recycling facilities were delivered in 1990, 2005 and 2009, while those for rock wool production were delivered in 2 units in 2001 in Europe and 1unit in 2012 in Southeast Asia.

Design, manufacturing and delivery of industrial furnaces

Heating devices were delivered and installed mainly in Japan.
In 2017, we received orders for relocating coil annealing furnaces of a transformer manufacturing company and renovating furnaces for carbon fiber manufacturing of a chemical manufacturer. We also have supplied many external heating type rotary kilns.

Ferronickel smelting furnace 60000KVA C/S


Ferronickel smelting furnace 60000KVA C/S
外熱式焼成キルン
External heating type calcination kiln
Dirt 90kg/H, digestion gas, hot blast temperature 1150℃
Circulating hot blast type
CH4 heater
Electrode device for electric smelting furnace

S-electric furnace (carbide) installed in Indonesia

電気熔錬炉の電極装置
Electrode device of electric smelting furnace
電気熔錬炉運転開始の状態
Startup conditions of electric smelting furnace operation
電気熔錬炉に電力を供給するトランス
Transformer supplying electricity to electric furnace
製品取出し準備
Preparations for product takeoff
製品取出し中
Product takeoff in process
カーバイドの塊。破砕加工梱包され出荷
Blocks of carbide
Shipped in packages of crushed and processed product
ページトップへ戻る
CHIYODA ENGINEERING CO., LTD. is a Sumitomo Osaka Cement Group company