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사이드 라시드 아흐메드 부트샤안시 첸다 산업 오븐 (Shaanxi Chengda Industrial Furnace Co., Ltd.) 은 전기 활 오븐의 착공을 완료했으며, 노동자들은 장비를 배우고 작동하기 위해 첸다 엔지니어와 신중하게 협력했습니다.중국과 파키스탄 국민 간의 깊은 우정과 우수한 협력을 보여주는. -
아부바카르1개월이 넘는 집중적인 제작과 디버깅 후,열교환연가스 퇴적실 장비 2세트가 성공적으로 운용되었습니다 ~ 프로젝트에 참여한 모든 직원이 열심히 일했습니다.~ -
지완한국의 산시 첸다 산업 용기 제조 회사,노스 춘천 카운티의 귀금속 용사 오븐 장비 설치 및 신중한 제조 및 엄격한 운영, 더 많은 분야에서 상호 이익이 되는 윈-윈 협력을 달성하기 위해 미래를 기대합니다!
담당자 :
Du
전화 번호 :
13991381852
Low Microcarbon Ferrochrome Refining Equipment
| 원래 장소 | 중국 |
|---|---|
| 브랜드 이름 | Shaanxi Chengda |
| 인증 | ISO 9001 |
| 모델 번호 | 장비 처리 능력을 기준으로 협의 |
| 최소 주문 수량 | 1개 단위 |
| 가격 | The price will be negotiated based on the technical requirements and supply scope of Party A |
| 포장 세부 사항 | 당사자 A의 특정 요구 사항에 따라 논의 |
| 배달 시간 | 2개월 |
| 지불 조건 | L/C, T/T, 웨스턴 유니온 |
| 공급 능력 | 생산 공급망을 완성하고 적시에 공급하며 품질 표준을 충족합니다. |
제품 상세 정보
| 강조하다 | low microcarbon ferrochrome refining machine,ferroalloy smelting equipment with warranty,ferrochrome refining equipment for smelting |
||
|---|---|---|---|
제품 설명
Low Microcarbon Ferrochrome Refining Equipment
Detailed Introduction & Technical Parameters
Low-carbon ferrochrome (generally referring to C ≤ 0.10%, micro-carbon grade C ≤ 0.06%, ultra-micro-carbon grade C ≤ 0.03%) is mainly produced by the two-step refining process via electro-silicothermic method. The complete plant is a closed continuous/semi-continuous refining system, consisting of raw material pretreatment, silicon-chromium smelting, thermal mixing refining, flue gas treatment, automatic control and other systems.
1. Overall Process Flow
- Chromite ore, coke, flux → Submerged arc furnace smelting → Medium-carbon ferrochrome / Si-Cr alloy
- Si-Cr alloy + chromite concentrate + lime → Thermal mixing refining furnace → Desiliconization, decarburization and refining
- Tapping → Casting / Granulation → Finished low-carbon ferrochrome
- High-temperature flue gas → Waste heat recovery + dust removal purification → Emission up to standard
2. Core Equipment Introduction & Technical Parameters
2.1 Submerged Arc Furnace for Si-Cr Alloy
As the core upstream equipment for refining, it is used to produce high-silicon silicon-chromium alloy to provide reducing agent for subsequent decarburization.
Structure Composition
- Circular closed furnace shell, self-baking electrode / graphite electrode
- Short network system, hydraulic electrode pressing and lifting system
- Water-cooled hood, furnace cover, feeding system
- Tap hole, slag hole, furnace tilting mechanism
Typical Technical Parameters
| Item | Parameters |
|---|---|
| Rated capacity | 6300kVA / 12500kVA / 16500kVA / 25500kVA |
| Primary voltage | 35kV / 10kV |
| Electrode diameter | φ500 / φ600 / φ700 / φ800mm |
| Electrode lifting stroke | 1200~1800mm |
| Operating temperature | 1800~2000℃ |
| Daily output | 15~60 t/d (varies with capacity) |
| Unit power consumption | 3800~4600kWh/t Si-Cr |
| Lining material | Carbon brick + magnesia-carbon brick composite lining |
| Lining service life | 8~14 months |
| Flue gas temperature | 400~600℃ |
2.2 Refining Furnace for Low / Microcarbon FeCr
Mainly tilting refining furnace, divided into fixed type and rotary type, which is the key equipment determining the final carbon content.
Working Principle
Under alkaline slag environment, Si in silicon-chromium alloy is used to reduce Cr₂O₃, and realize deep decarburization, dephosphorization and desulfurization, finally obtaining micro-carbon ferrochrome with C ≤ 0.03%~0.06%.
Equipment Structure
- Tilting steel structure furnace body
- Magnesia-chrome / magnesia-calcium refractory lining
- Top charging port, temperature measuring and sampling port
- Tap hole, slag hole
- Hydraulic furnace tilting system
- Dust sealing hood
Detailed Technical Parameters
| Item | Parameters |
|---|---|
| Per-charge capacity | 3t / 6t / 10t / 15t / 20t |
| Tilting angle | 0~45° |
| Operating temperature | 1650~1750℃ |
| Refining cycle | 90~150min/heat |
| Refractory lining | Direct-bonded magnesia-chrome brick / magnesia-calcium brick |
| Lining campaign | 80~120 heats |
| Product carbon content | 0.01%~0.06% adjustable |
| Chromium recovery rate | ≥95% |
| Slag ratio | Approx. 1.0~1.3t slag / t alloy |
2.3 Vacuum Refining Unit (Optional, for ultra-micro-carbon grade C ≤ 0.01%)
Used for ultra-micro-carbon ferrochrome for high-end stainless steel, adopting vacuum decarburization + oxygen blowing refining.
Equipment Types
- VIM (Vacuum Induction Melting Furnace)
- VOD (Vacuum Oxygen Decarburization Furnace)
Key Parameters
| Item | Parameters |
|---|---|
| Vacuum degree | 0.1~10Pa |
| Treatment capacity | 1~10t/heat |
| Refining time | 60~120min |
| Final carbon content | ≤0.01% |
| Oxygen content | ≤30ppm |
| Heating rate | 8~12℃/min |
2.4 Raw Material Batching & Feeding System
- Electronic batching scale: accuracy ±0.1%
- Silos: lime silo, chromite concentrate silo, Si-Cr alloy silo
- Conveying equipment: belt conveyor, vibrating feeder
- Drying equipment: rotary dryer, drying temperature 120~150℃
2.5 Casting & Finished Product Treatment System
- Hot metal ladle: capacity matching refining furnace 3~20t
- Casting mold: cast iron ingot mold / continuous caster
- Crushing equipment: jaw crusher, cone crusher
- Screening equipment: vibrating screen, particle size 10~50mm adjustable
- Granulation equipment (optional): water quenching granulation system for granular ferrochrome
2.6 Flue Gas Purification & Waste Heat Recovery System
Ferrochrome smelting produces large amount of high-temperature dust, so complete environmental protection equipment is required.
Composition
- Waste heat boiler: recover heat from 400~600℃ flue gas to produce steam
- Gravity settling chamber + cyclone dust collector
- High-temperature resistant bag filter
- Induced draft fan, chimney
Parameters
| Item | Parameters |
|---|---|
| Dust removal efficiency | ≥99.5% |
| Emission concentration | ≤10mg/m³ |
| Flue gas treatment capacity | 30000~120000m³/h |
| Waste heat recovery efficiency | 60%~75% |
2.7 Electrical & Automatic Control System
- Main transformer: on-load voltage regulation, constant power control
- Short network: water-cooled copper bar, water-cooled cable, low-loss design
- PLC control system:
- Electrode current and voltage monitoring
- Online monitoring of furnace temperature and vacuum degree
- Automatic batching control
- Energy consumption statistics and reports
3. Typical Grades and Corresponding Equipment Control Indexes
| Grade | C Content | Si Content | Cr Content | Applicable Equipment |
|---|---|---|---|---|
| FeCr65C0.03 | ≤0.03% | ≤1.0% | ≥65% | Refining furnace + vacuum |
| FeCr65C0.06 | ≤0.06% | ≤1.5% | ≥65% | Thermal mixing refining furnace |
| FeCr60C0.10 | ≤0.10% | ≤2.0% | ≥60% | Conventional refining furnace |
4. Economic & Technical Indicators of Complete Production Line (Taking 10t Refining Furnace as Example)
- Daily output: Approx. 100~120t/d
- Comprehensive power consumption: 3200~3800kWh/t product
- Recovery rate: Cr ≥95%, Si utilization rate ≥85%
- Operating rate: ≥90%
- Operating personnel: 12~18 persons/three shifts
