GB/T50530-2022：氧化铝厂工艺设计标准

GB/T50530-2022······1

1 总则······13

2 术语······14

3 基本规定······19

4 原料、辅料与燃料······27

4.1 原料······27

4.2 辅料······27

4.3 燃料······27

5 原料和燃料贮运与铝土矿破碎······29

5.1 卸车设施······29

5.2 原料和燃料堆场······30

5.3 铝土矿破碎······32

6 石灰烧制与石灰乳制备······33

6.1 石灰烧制······33

6.2 石灰乳制备······34

7 料浆制备······35

7.1 料浆磨制······35

7.2 浮选精矿调配······36

7.3 烧结法生料浆制备······36

8 预脱硅与溶出······39

8.1 预脱硅······39

8.2 溶出喂料泵······40

8.3 溶出······40

9 熟料烧成与破碎······43

9.1 煤粉制备······43

9.2 熟料烧成······44

9.3 熟料破碎······46

10 熟料溶出······47

11 赤泥分离洗涤与压滤······48

11.1 赤泥分离与洗涤······48

11.2 絮凝剂制备······48

11.3 赤泥外排······49

11.4 赤泥压滤······49

12 控制过滤与精液降温······51

12.1 控制过滤······51

12.2 精液降温······51

13 烧结法粗液脱硅······53

13.1 粗液脱硅······53

13.2 硅渣分离······55

14 铝酸钠溶液分解······56

14.1 种子分解······56

14.2 种子过滤······57

14.3 碳酸化分解······58

15 氢氧化铝分离洗涤与贮存······59

15.1 氢氧化铝分离与洗涤······59

15.2 氢氧化铝贮仓······59

16 母液蒸发与碱液调配······60

16.1 母液蒸发······60

16.2 结晶碱分离······62

16.3 结晶碱苛化······62

16.4 液碱卸车贮运与固碱化碱······63

16.5 碱液调配······64

17 清洗设施······65

17.1 碱洗站······65

17.2 热水站······65

17.3 酸洗站······66

18 氢氧化铝焙烧及产品包装与堆存······67

18.1 氢氧化铝焙烧······67

18.2 氧化铝贮存······68

18.3 产品包装与堆存······68

本标准用词说明······70

引用标准名录······71

附：条文说明······74

1 总则······79

2 术语······80

3 基本规定······83

4 原料、辅料与燃料······93

4.1 原料······93

4.2 辅料······93

4.3 燃料······93

5 原料和燃料贮运与铝土矿破碎······95

5.1 卸车设施······95

5.2 原料和燃料堆场······96

5.3 铝土矿破碎······97

6 石灰烧制与石灰乳制备······99

6.1 石灰烧制······99

6.2 石灰乳制备······100

7 料浆制备······102

7.1 料浆磨制······102

7.2 浮选精矿调配······103

7.3 烧结法生料浆制备······103

8 预脱硅与溶出······107

8.1 预脱硅······107

8.2 溶出喂料泵······108

8.3 溶出······109

9 熟料烧成与破碎······112

9.1 煤粉制备······112

9.2 熟料烧成······114

9.3 熟料破碎······116

10 熟料溶出······118

11 赤泥分离洗涤与压滤······120

11.1 赤泥分离与洗涤······120

11.2 絮凝剂制备······121

11.3 赤泥外排······122

11.4 赤泥压滤······122

12 控制过滤与精液降温······124

12.1 控制过滤······124

12.2 精液降温······125

13 烧结法粗液脱硅······127

13.1 粗液脱硅······127

13.2 硅渣分离······128

14 铝酸钠溶液分解······129

14.1 种子分解······129

14.2 种子过滤······131

14.3 碳酸化分解······132

15 氢氧化铝分离洗涤与贮存······133

15.1 氢氧化铝分离与洗涤······133

15.2 氢氧化铝贮仓······133

16 母液蒸发与碱液调配······134

16.1 母液蒸发······134

16.2 结晶碱分离······136

16.3 结晶碱苛化······137

16.4 液碱卸车贮运及固碱化碱······138

16.5 碱液调配······139

17 清洗设施······140

17.1 碱洗站······140

17.2 热水站······140

17.3 酸洗站······141

18 氢氧化铝焙烧及产品包装与堆存······143

18.1 氢氧化铝焙烧······143

18.2 氧化铝贮存······144

18.3 产品包装与堆存······144