환경 법적 배출허용기준을 파악하고, 더 강화된 사내기준을 설정하여 배출허용기준을 준수하는 것을 목적으로 한다.
| 구분 | 법적 배출허용기준 | 사내관리기준 | ||
|---|---|---|---|---|
| 대기 배출허용기준 (대기환경보전법) |
먼지 | 30 mg/Sm3 | 먼지 | 6 mg/Sm3 |
| 질소산화물 | 150 ppm | 질소산화물 | 30 ppm | |
| 황산화물 | 200 ppm | 황산화물 | 40 ppm | |
| 수질 배출허용기준 (물환경보전법) |
pH | 5.8 ~ 8.6 | pH | 5.8 ~ 8.6 |
| BOD | 80 mg/L | BOD | 40 mg/L | |
| TOC | 50 mg/L | TOC | 25 mg/L | |
| SS | 80 mg/L | SS | 40 mg/L | |
| T-N | 60 mg/L | T-N | 30 mg/L | |
| T-P | 8 mg/L | T-P | 4 mg/L | |
| n-Hexane(광유류) | 5 mg/L | n-Hexane(광유류) | 2.5 mg/L | |
| n-Hexane(동식물류) | 30 mg/L | n-Hexane(동식물류) | 15 mg/L | |
※ 사내관리기준 : 대기 배출허용기준의 20% 이내, 수질 배출허용기준 50% 이내
| ITEM | CRESTO-60BF | CRESTO-70BF | CRESTO-90BF | CRT-SC80BF | NCC-SC15BF | |
|---|---|---|---|---|---|---|
| Bulk Density | 110℃ | 2.55 | 2.65 | 3.10 | 2.55 | 2.75 |
| 1,350℃ | 2.50 | 2.65 | 3.10 | - | 2.80 | |
| 1500℃ | - | - | - | 2.55 | - | |
| CCS (MPa) | 110℃ | 45 | 50 | 70 | 8 | 40 |
| 1,350℃ | 53 | 60 | 180 | - | 80 | |
| 1500℃ | - | - | - | 100 | - | |
| PLC (%) | 110℃ | -0.06 | -0.03 | -0.03 | - | -0.05 |
| 1,350℃ | -0.19 | 0.20 | -0.22 | - | 0.07 | |
| 1500℃ | - | - | - | 0.62 | - | |
| Chemical Composition (%) |
Al2O3 | 60 | 70 | 90 | 10 | 75 |
| SiO2 | 35 | 25 | 6 | - | - | |
| SiC | - | - | - | 80 | 15 | |
| Application Part | Bosh Shell, Hearth Bottom |
Ceramic Cup Castable |
Ceramic Cup Castable |
Copper Stave Hot Face Castable |
Stack Repair & Top Cone |
|
| ITEM | THPM-HA | THPM-AS | THPM-HS | THPM-ECO | KORAM-SC15BF | KORAM-SC20BF | |
|---|---|---|---|---|---|---|---|
| Bulk Density | Consolidated at 65℃ |
2.50 | 2.50 | 2.50 | 2.50 | - | - |
| 1,500℃ | - | - | - | - | 2.35 | 2.30 | |
| CCS (MPa) | 1500℃ | 10 | 10 | 10 | 10 | 20 | 23 |
| Chemical Composition (%) |
Al2O3 | 40 | 35 | 30 | 35 | - | - |
| SiC | 10 | 10 | 10 | 10 | 15 | 20 | |
| Application Part | Tap Hole Clay | Tap Hole Face | Runner Repair | ||||
| ITEM | HX-45BF | ML-70BF | AL-85BF | SC-SC75BF | SC-SC90BF | |
|---|---|---|---|---|---|---|
| Bulk Density | 2.35 | 2.65 | 3.15 | 2.75 | 2.65 | |
| Apparent Porosity (%) | 13.5 | 16.3 | 12.7 | 12.0 | 13.5 | |
| CCS (MPa) | 68 | 105 | 185 | 220 | 210 | |
| Chemical Composition (%) |
Al2O3 | 45 | 70 | 85 | - | - |
| Fe2O3 | 1.0 | 1.0 | 0.3 | - | - | |
| SiC | - | - | - | 75 | 90 | |
| Application Part | Ceramic Cup & Hearth |
Ceramic Cup Pad & Hearth Protection |
Tuyere Set | Bosh | Copper Stave Insert Brick |
|
| ITEM | HL-30HS | HSL-90HS | AL-55HS | AL-65HS | AL-75HS | |
|---|---|---|---|---|---|---|
| Bulk Density | 2.15 | 1.70 | 2.40 | 2.45 | 2.50 | |
| Apparent Porosity (%) | 18.1 | 22.2 | 18.0 | 20.2 | 20.2 | |
| CCS (MPa) | 30 | 25 | 50 | 50 | 50 | |
| Chemical Composition (%) |
Al2O3 | 30 | - | 55 | 65 | 75 |
| SiO2O2 | - | 90 | - | - | - | |
| Fe2O3 | 1.5 | 0.5 | 1.0 | 1.0 | 0.5 | |
| Application Part | Checker Brick | Checker Brick | Hot Blast Main | Hot Blast Main | Hot Blast Main | |
