1、Dexing Copper Recovery PlantTraining德兴铜回收厂生产培训德兴铜回收厂生产培训ChemSulphide Process化学硫化工艺 第1页，共47页。Introduction 简介The Dexing Chemsulphide Copper Recovery Plant is designed with a hydraulic capacity of 24,000 m3/day recovering approximately 12,000 lbs.of copper.The plant will treat acidic drainage from the
2、following sources德兴化学硫化法铜回收厂的设计能力为每天处理24,000立方米水，回收12,000磅铜。回收厂处理的含铜水来自于以下来源：Yangtaowu acid drainage 杨桃坞酸性水 Zhujia raffinate 祝家萃余液 Zhujia pregnant leach solution(PLS)during wet seasons 雨季期间祝家堆浸液 Underground stream from an adit at Fujiawu 富家坞地下矿井废水 Fujiawu open pit and other water sources at JCCLs De
3、xing Copper Mine.富家坞采矿场废水和其他来源第2页，共47页。Basic Plant Flow 基本工艺流程第3页，共47页。PLANT AREAS 厂区分布 Feed Loop 进水区 Ferric Removal Loop 除铁区 Copper Recovery Loop 沉铜区 Dewatering Loop 脱水区 Reagent Loop 药剂区 Service Loop 辅助服务区第4页，共47页。Plant Components 厂区组成要素Reagents 药剂 Lime 石灰 NaHS 硫氢化钠 Flocculent 絮凝剂 Sulfuric Acid 硫酸
4、Nitrogen 氮气 Soda Ash 碳酸钠Equipment 设备 Tanks 反应罐 Agitators 搅拌机 Clarifiers 浓密池 Pumps 泵 Valves 阀门 Instrumentation 仪表 Filter press 压滤机第5页，共47页。Reagents 药剂 Lime 石灰 NaHS 硫氢化钠 Flocculent 絮凝剂 Sulfuric Acid 硫酸 Nitrogen 氮气 Soda Ash 碳酸钠第6页，共47页。Hydrated Lime 熟石灰Hydrated Lime熟石灰熟石灰-Ca(OH)2 氢氧化钙Alkaline碱性,Slight
5、earthy odor轻微的泥质气味,fine whitish powder白色细粉末.Mainly used for neutralization.通常用于中和酸性 Used on site to increase pH&precipitate Ferric iron from PLS在回收厂的用途为提高酸性水的pH值，沉淀3价铁离子第7页，共47页。Health Hazards 健康危害Skin Contact,may cause severe irritation,removes natural skin oils.皮肤接触：引起刺激性，使皮肤表面脱油Brush away excess
6、and remove contaminated clothing,wash with soap&water 紧急措施：抹去多余粉末，脱下污染的衣服，用肥皂和清水清洗Eye Contact,Severe irritation and burning.眼睛接触：严重刺激和灼伤紧急措施：Flush with water 15-20 minutes 用清水冲洗15-20分钟Inhalation,irritation to breathing passages,coughing,sneezing.吸入：刺激呼吸道、咳嗽、打喷嚏紧急措施：Move to source of fresh air 转移到空气流
7、通处Refer to MSDS 参考化学品安全说明第8页，共47页。First Aid 急救常识Skin Contact,皮肤接触皮肤接触Brush away excess and remove contaminated clothing,wash with soap&water 抹去多余粉末，脱下污染的衣服，用肥皂和清水洗Eye Contact,眼睛接触眼睛接触 Flush with water 15-20 minutes 用清水冲洗15-20分钟Inhalation,吸入吸入Move to source of fresh air 转移到空气流通处Refer to MSDS 参考化学品安全说
8、明第9页，共47页。Required PPE for Hydrated lime必备个人安全装备 Dry Gloves 手套 Long sleeve shirt 长袖外衣 Dust Mask 防尘口罩 Eye Protection 防护眼镜 Steel toe Boots 铁头工作鞋 Hard hat 安全帽第10页，共47页。Release Action 泄漏事故时的措施Small Spill 小泄漏小泄漏:i.e.a spill resulting from the pipe failure 例如：管道破裂引起泄漏Action措施：措施：Wash the solution into the
9、 nearest sump with plenty of water 大量清水冲洗泄漏液进最近的污水坑.第11页，共47页。Release Action Continued 泄漏事故时的措施续Large Spill 大泄漏大泄漏:i.e.a spill resulting from the tank failure 例如：储存罐破裂引起泄漏Action措施：措施：Add a very weak acid(i.e.acetic acid)加入弱酸，如醋酸；Wash the neutralized solution into the nearest sump with plenty of wate
10、r 大量清水冲洗中和后的泄漏液进最近的污水坑；Excavate the contaminated soil and add the weak acid;move the soil to waste stockpile 挖出被污染的泥土，加入弱酸；将中和后的泥土堆放到废石场第12页，共47页。Sodium Hydrosulfide 硫氢化钠(NaHS)NaHS-Very alkaline,pH 11.5-12.5.弱碱性 Solution is typically yellow to dark green with a strong hydrogen sulfide(rotten egg)odo
11、r.黄色到深绿色的液体，带有强烈的硫化氢气味（臭鸡蛋味）Precipitates copper at optimum pH levels 在适应的pH条件下沉淀铜离子 Vapor space over NaHS solution contains toxic hydrogen sulfide(H2S).This gas is colorless and heavier than air.The level of H2S above the solution is increased by solution contact with acidic materials(PLS).硫化氢钠溶液的挥发
12、气体含有有毒的硫化氢气体，该气体是无色的，比空气比重大。当硫氢化钠溶液和酸性水接触后，硫化氢气体的浓度将增加。第13页，共47页。Health Hazards 健康危害Inhalation of H2S vapors is very dangerous.Exposure to 100-200 PPM of gas causes loss of sense of smell,coughing,choking,eye irritation,headache,dizziness.Continued low exposure or to more than 700 PPM will result in
13、 unconsciousness,respiratory paralysis and death.硫化氢气体的吸入市非常危险的。吸入100-200微克/升浓度的气体将会是人失去嗅觉、咳嗽、窒息、刺激眼睛、头疼和晕眩。持续接触低浓度或接触高于700毫克/升浓度的硫化氢气体，会导致失去知觉、呼吸紊乱、死亡第14页，共47页。Health Hazards 健康危害Skin&Eye Contact can result in 2nd&3rd degree burns and potentially severe corneal eye injury.皮肤和眼睛接触：导致2级和3级烫伤，可能引起严重的眼
14、角膜损伤第15页，共47页。First Aid 急救常识 Inhalation吸入吸入:Get victim to fresh air 转移至空气流通处Eye Contact 眼睛接触眼睛接触:Flush entire eye thoroughly for 15 minutes.Get immediate medical help.清水冲洗15分钟，立即采取医护措施Skin Contact 皮肤接触皮肤接触:Flush exposed area with lots of water,remove contaminated clothing.大量清水冲洗，脱去被污染衣物Ingestion误食误食
15、:DO NOT INDUCE VOMITING,Drink 2-4 glasses of water.不用催吐，立即喝2-4杯清水第16页，共47页。Required PPE for NaHS必备个人防护装备 Neoprene Gloves&apron 氯丁橡胶手套和防护板 Chemical boots 防化学品的工作靴 Chemical goggles&full face shield防化学品的护目镜和护脸罩 Hard hat 安全帽Greater Exposure 高浓度接触 SCBA or Air supplied respirator自携式呼吸器第17页，共47页。Release Ac
16、tion 泄漏事故时的措施Small Spill 小泄漏小泄漏:i.e.a spill resulting from the pipe failure 例如：管道破裂引起泄漏Action措施：措施：Add the diluted hydrogen peroxide(3-5%)or weak sodium hypochlorite 加入稀释的过氧化氢（3-5%）或次氯酸钠；Wash the neutralized solution into the nearest sump with plenty of water 大量清水冲洗中和后的泄漏液进最近的污水坑.第18页，共47页。Release A
17、ction Continued 泄漏事故时的措施续Large Spill 大泄漏大泄漏:i.e.a spill resulting from the tank failure 例如：储存罐破裂引起泄漏Action措施：措施：Add the diluted hydrogen peroxide(3-5%)or weak sodium hypochlorite 加入稀释的过氧化氢（3-5%）或次氯酸钠；Add a very weak acid(i.e.acetic acid)加入弱酸，如醋酸；Wash the neutralized solution into the nearest sump wi
18、th plenty of water 大量清水冲洗中和后的泄漏液进最近的污水坑；Excavate the contaminated soil and add the diluted hydrogen peroxide(3-5%)or weak sodium hypochlorite;move the soil to waste stockpile 挖出被污染的泥土，加入稀释的过氧化氢（3-5%）或次氯酸钠；将氧化后的泥土堆放到废石场第19页，共47页。Flocculent 絮凝剂 White granular powder,slight odor.白色颗粒状，轻微气味 Very slipper
19、y when it becomes wet.潮湿时非常粘滑 Causes suspended particles in liquids to aggregate,forming a floc to increase precipitation and clarity of overflow.使溶液中的悬浮颗粒聚集，形成絮凝体以提高颗粒沉降性和出水澄清度第20页，共47页。Health Hazards 健康危害 Inhalation吸入吸入-May cause irritation of mucous membranes 可能刺激呼吸道粘膜 Skin Contact皮肤接触皮肤接触-May ca
20、use irritation with prolonged contact.长时间接触可能引起刺激性 Eye Contact眼睛接触眼睛接触-Can cause mild irritation可能引起轻度刺激 Refer to MSDS参考化学品安全说明第21页，共47页。First Aid 急救常识Inhalation吸入吸入-Remove to fresh air,obtain medical attention 转移至空气流通处，采取医护措施Skin Contact皮肤接触皮肤接触-Remove excess powder and contaminated clothing,wash w
21、ith soap and plenty of water.抹去多余颗粒，脱去污染衣物，用大量清水和肥皂冲洗Eye Contact眼睛接触眼睛接触-Immediately gently flush with water for 15 minutes keeping the eyelids wide open and apart.Obtain medical attention立即用清水冲洗15分钟，冲洗时要保持睁开眼睑，采取医护措施Refer to MSDS参考化学品安全说明第22页，共47页。Required PPE for Flocculent必备个人防护装备 Dry Gloves 手套 L
22、ong sleeve shirt 长袖外衣 Dust Mask 防尘口罩 Eye Protection 防护眼镜 Steel toe Boots 铁头工作鞋 Hard hat 安全帽第23页，共47页。Release Action 泄漏事故时的措施 Small Spill 小泄漏小泄漏:i.e.a spill resulting from the pipe failure 例如：管道破裂引起泄漏Large Spill 大泄漏大泄漏:i.e.a spill resulting from the tank failure 例如：储存罐破裂引起泄漏Action措施：措施：Wash the solut
23、ion into the nearest sump with plenty of water 大量清水冲洗泄漏液进最近的污水坑.第24页，共47页。Sulfuric Acid硫酸 H2SO4 Oily,Colorless to light yellow,causes severe skin&eye burns.油状，无色到单黄色，接触后会引起严重的皮肤和眼睛烧伤 Can be added with NaHS in the Contactor to obtain optimal H2S production 在铜回收罐中加入硫氢化钠和硫酸，以获得最佳的硫化氢产量第25页，共47页。Health
24、Hazards 健康危害 Inhalation吸入吸入-May cause corrosive burns to upper respiratory system可能引起上呼吸道的烫伤 Skin Contact皮肤接触皮肤接触-Causes Severe burns引起严重烫伤 Eye Contact眼睛接触眼睛接触-Can cause irritation,corneal burns,may result in permanent damage刺激眼睛，灼伤眼结膜，可能引起长远损害 Refer to MSDS参考化学品安全说明第26页，共47页。First Aid急救常识 Inhalatio
25、n吸入吸入-Remove to fresh air,obtain medical attention转移至空气流通处，采取医护措施 Skin Contact皮肤接触皮肤接触-Flush with plenty of water for 15 minutes,remove contaminated clothing during flushing,obtain medical help 用大量清水冲洗15分钟，脱去污染的衣物，采取医护措施 Eye Contact眼睛接触眼睛接触-Flush eyes with plenty of water for 15 minutes,obtain immed
26、iate medical help用大量清水冲洗15分钟，采取医护措施 Refer to MSDS参考化学品安全说明第27页，共47页。Required PPE for Sulfuric Acid必备个人防护装备 Neoprene Gloves&apron 氯丁橡胶手套和防护板 Chemical boots 防化学品的工作靴 Chemical goggles&full face shield防化学品的护目镜和护脸罩 Hard hat 安全帽Greater Exposure 高浓度接触 SCBA or Air supplied respirator自携式呼吸器第28页，共47页。Release
27、Action 泄漏事故时的措施 Small Spill 小泄漏小泄漏:i.e.a spill resulting from the pipe failure 例如：管道破裂引起泄漏Action措施：措施：Wash the solution into the nearest sump with plenty of water 大量清水冲洗泄漏液进最近的污水坑.第29页，共47页。Release Action Continued 泄漏事故时的措施续Large Spill 大泄漏大泄漏:i.e.a spill resulting from the tank failure 例如：储存罐破裂引起泄漏A
28、ction措施：措施：Add 10%soda ash solution 加入10%碳酸钠溶液；Wash the neutralized solution into the nearest sump with plenty of water 大量清水冲洗中和后的泄漏液进最近的污水坑；Excavate the contaminated soil and mix with limestone,soda ash,or lime;move the soil to waste stockpile 挖出被污染的泥土，混入石灰石、碳酸钠或石灰；将中和后的泥土堆放到废石场第30页，共47页。Soda Ash 碳
29、酸钠 Sodium carbonate 碳酸钠(Na2CO3),is an alkali chemical 碱性化学品Used to scrub H2S gas produced from NaHS before entering the atmosphere 用于吸收工艺中产生的硫化氢气体第31页，共47页。Health Hazards 健康危害 Skin&Eye Contact-Mild to Moderate Irritation 皮肤和眼睛的接触：轻度到中度的刺激性 Inhalation-May irritate nose,throat&lungs 吸入：刺激鼻子，喉咙和肺部 Refe
30、r to MSDS参考化学品安全说明第32页，共47页。First Aid 急救常识 Skin Contact-Wash with plenty of water and non-abrasive soap.皮肤接触皮肤接触-用清水和肥皂清洗Eye Contact-Flush with plenty of water and seek medical attention.眼睛接触眼睛接触-用大量清水清洗，医护护理 Slight Inhalation-Allow victim to rest in a well ventilated area.轻微吸入轻微吸入-在通风处休息Refer to MS
31、DS.参考化学品安全说明第33页，共47页。Required PPE for Soda Ash必备个人安全装备 Dry Gloves 手套 Long sleeve shirt 长袖外衣 Dust Mask 防尘口罩 Eye Protection 防护眼镜 Steel toe Boots 铁头工作鞋 Hard hat 安全帽第34页，共47页。Release Action 泄漏事故时的措施Small Spill 小泄漏小泄漏:i.e.a spill resulting from the pipe failure 例如：管道破裂引起泄漏Action措施：措施：Wash the solution i
32、nto the nearest sump with plenty of water 大量清水冲洗泄漏液进最近的污水坑.第35页，共47页。EQUIPMENT TAGS 设备标记 Tanks(TK)反映罐 Agitators (AG)搅拌机 Air Dryer(AD)空气干燥器 Pumps(P)泵 Valves(V)阀门 Filter Press(FP)压滤机 General Process Equipment(EQ)其它工艺设备第36页，共47页。Instrumentation Tags 仪表标记 Pressure(P)压力 Level(L)液位 Flow(F)流量 pH(pH)Indicat
33、ion(I)显示 Control(C)控制 Alarm(A)警报 ORP(oxidation reduction potential)氧化还原电位 Transmitter(T)变送器 Switch(S)开关第37页，共47页。Tanks(TK)反应罐TK 106 Head Tank 酸性水池TK 100 Lime Reactor 1 1号除铁反应罐TK 101 Lime Reactor 2 2号除铁反应罐TK 102 Deaeration tank 脱气池TK 104 Ferric Clarifier 除铁浓密池TK 200 Copper Contactor 沉铜反应罐TK 220 Condi
34、tioning Tank 污泥调节池TK 230 Vapor Lock氮气调节罐TK 205 Deaeration Tank脱气池TK 205 Copper Clarifier 沉铜浓密池TK 204 Splitter tank 分水池第38页，共47页。Tanks(TK)反应罐 Continued续TK 390 Nitrogen Storage 氮气储存罐TK 320 NaHS Storage 硫氢化钠储存罐TK 310 Floc Make-up Tank 絮凝剂制备罐TK 311 Floc Dilution 絮凝剂稀释罐 TK 330 Sulfuric Acid Storage 硫酸储存罐
35、TK 600 Clean Water 清水池 TK 611 Lime Storage 1 1号石灰乳储存罐 TK 612 Lime Storage 2 2号石灰乳储存罐第39页，共47页。Measurements测量值 ORP =oxidation reduction potential氧化还原电位 pH=A measure of acidity or the alkalinity of a solution as measured on a scale of 0 to 14.7.0 on the pH scale represents neutrality 在0-14的范围内表达溶液的酸性或
36、者碱性。7.0表示溶液为中性 Density密度=Mass/Volume 重量/体积第40页，共47页。Iron Removal 100 Circuit 除铁循环第41页，共47页。Copper Removal Circuit 200 沉铜循环第42页，共47页。Copper Removal Circuit 200 Continued沉铜循环续第43页，共47页。Reagent Circuit 300 药剂循环第44页，共47页。Reagent Circuit 300 continued药剂循环续第45页，共47页。Lime Circuit 600 石灰乳循环第46页，共47页。演讲完毕，谢谢观看！第47页，共47页。
