CN101597691A - The processing method of the nickeliferous solid waste of Treatment of Copper - Google Patents
The processing method of the nickeliferous solid waste of Treatment of Copper Download PDFInfo
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- CN101597691A CN101597691A CNA2009101012791A CN200910101279A CN101597691A CN 101597691 A CN101597691 A CN 101597691A CN A2009101012791 A CNA2009101012791 A CN A2009101012791A CN 200910101279 A CN200910101279 A CN 200910101279A CN 101597691 A CN101597691 A CN 101597691A
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Abstract
The invention discloses the processing method of the nickeliferous solid waste of a kind of Treatment of Copper, being characterized at first adopting boiling rotary drying method that solid waste is carried out pre-treatment obtains into the stove furnace charge, adopt reduction method to carry out retailoring then to going into the stove furnace charge, described retailoring is to add carbon fuel in reducing and smelting furnace, its burning liberated heat makes the furnace charge fusing, form the carbon monoxide reducing atmosphere simultaneously, make the metal oxide reduction of copper or nickel, liquid copper that retailoring obtains or liquid nickel obtain time blister copper through casting ladle, inferior thick nickel, matte or ice nickel, the slag that retailoring obtains is recycled through Water Quenching, and the flue gas that retailoring obtains is recycled through exhaust treatment system.The present invention has changed the little soaring smelting furnace production technology that original solid waste falls behind, adopt the harmless treatment process technology, greatly improved the problem of environmental pollution that small cupola production causes, whole technological process environment-protection low-consumption, and rate of recovery height such as copper nickel.
Description
Technical field
The present invention relates to a kind of recovery has the method for valency non-ferrous metal, the processing method of the nickeliferous solid waste of especially a kind of Treatment of Copper, this solid waste is mainly from the final filter mud that produces in the wastewater treatment process of printed circuit board manufacturing enterprise etc., advance factory's water ratio and be about 75～80%, main component is inorganics classes such as metal species such as copper, nickel and quartz.
Background technology
High speed development along with Chinese national economy, non-ferrous metals industry develop into China's electric power, traffic, building, electronic information, the development of relevant industries such as national defense industry and new high-tech industry provides to be supported and greatly promotes, China has become the world today and has mainly contained non-ferrous metal country of consumption, occupy important position in international non-ferrous metal market, but, China's non-ferrous metal raw material supply wretched insufficiency, this has become the bottleneck of China's Development of Non-Ferrous Metals Industry, and on the other hand, in the final filter mud that produces of the wastewater treatment of printed circuit board manufacturing enterprise, the cupric of its butt filter mud (nickel) amount is but up to about 10%, and ore grade such as copper reach 1% very high extraction value is just arranged, therefore, the filter mud of printed circuit board manufacturing enterprise wastewater treatment generation has high recycling value.But in fact very complicated because of the nickeliferous filter mud of the cupric of collecting source, component difference is very big, and metal content is lower, adopts little soaring smelting furnace and open pile to shine in the existing technological method, and its shortcoming is the less (0.5m of stove hearth area
2About), there is not any dust arrester installation, furnace gas is directly discharged from furnace roof, yields poorly, the energy consumption height, the rate of recovery is low, and environmental pollution is big, and smelting furnace material is the higher-grade furnace charge substantially, and is comparatively single.Open pile shines and causes the dust airborne dust big, and contaminate environment causes the serious phenomenon of regional heavy metal contamination.
Summary of the invention
Technical problem to be solved by this invention is to overcome the total deficiency of prior art and processing method that the high nickeliferous solid waste of Treatment of Copper of a kind of environment-protection low-consumption rate of recovery is provided.
The technical scheme that the present invention solves the problems of the technologies described above employing is: the processing method of the nickeliferous solid waste of this Treatment of Copper, being characterized at first adopting boiling rotary drying method that solid waste is carried out pre-treatment obtains into the stove furnace charge, adopt reduction method to carry out retailoring then to going into the stove furnace charge, described retailoring is to add carbon fuel in reducing and smelting furnace, its burning liberated heat makes the furnace charge fusing, form the carbon monoxide reducing atmosphere simultaneously, make the metal oxide reduction of copper or nickel, liquid copper that retailoring obtains or liquid nickel obtain time blister copper through casting ladle, inferior thick nickel, matte or ice nickel, the slag that retailoring obtains is recycled through Water Quenching, and the flue gas that retailoring obtains is recycled through exhaust treatment system.
Employing boiling rotary drying method of the present invention is carried out preprocessing process for the nickeliferous solid waste filter mud of cupric is dry in boiling-rotary kiln to solid waste; drying process adopts carbon powder to burn as thermal source; drying temperature is 800 ℃-900 ℃; the water ratio of solid waste is dropped to below 25%; deliver to again and be pressed into brick shape furnace charge in the briquetting press; this brick shape furnace charge is the 240mm*115mm*53mm standard specifications, and described brick shape furnace charge is gone into the stove furnace charge as the environmental protection reducing and smelting furnace.
Employing reduction method of the present invention is carried out the retailoring process for carbon to going into the stove furnace charge, flux, brick shape furnace charge, join in the reducing and smelting furnace in turn by skip hoist, furnace charge moves from top to bottom, the reducing and smelting furnace bottom tuyeres is the melting area, furnace charge reaches the tuyere zone fusing, air blasts through the air port, make the carbon burning at tuyere zone, producing high-temperature furnace gas moves from bottom to top, with the furnace charge antikinesis, carry out heat exchange, furnace charge is heated gradually and finishes the retailoring process, described flux is quartzite and Wingdale, copper nickel mud: quartzite: the ratio of Wingdale is 1: 0.05-0.1: 0.05-0.1, the retailoring temperature is 1150 ℃-1250 ℃, and retailoring obtains liquid copper or liquid nickel, slag, flue gas.
Reducing and smelting furnace of the present invention adopts full water jacket structure, and water coolant drains into back pool from high-order water tower.
The furnace charge of reducing and smelting furnace tuyere zone of the present invention melting is through the cupola well sedimentation, slag separates with copper or nickel clarification, slag is emitted shrend from the slag notch stage, shrend water is the water tower cooling circulating water, gained liquid copper or liquid nickel are emitted through casting ladle from the discharge port stage and are obtained time blister copper, inferior thick nickel, matte or ice nickel, and along with the continuous fusing of furnace charge, the furnace charge face constantly descends, constantly replenish furnace charge, make the reducing and smelting furnace liftout keep the fixed horizontal charge level of weighing apparatus.
The flue gas that discharge at reducing and smelting furnace of the present invention top enters exhaust treatment system, respectively after sinking ash tube, sack cleaner combination treatment, removing heavy metal flue dust wherein, after induced draft fan, washing tower, thionizer and chimney emptying.
The present invention is by heavy ash tube, the collected flue dust of sack cleaner, its zinc oxide content be lower than 60% return brick press brickmaking after enter reducing and smelting furnace, zinc oxide content is higher than 60% sell as product.
The present invention compared with prior art has following having a few: 1, this Technology changes the little soaring smelting furnace production technology that original solid waste falls behind; adopt boiling rotary method drying-environmental protection reduction furnace to carry out the harmless treatment process technology, greatly improved the problem of environmental pollution that small cupola production causes.2, the solid waste open pile shines mode to adopt boiling-rotary method dry technology to change in the past, reduces pollutions such as airborne dust, improves regional environment.3, boiling-rotary method dry technology solid waste drying temperature low (800-900 ℃) adapts to raw material range wide (granularity 0.1mm--100mm and water content 5--30%).4, (copper nickel mud: quartzite: Wingdale=1: 0.05-0.1: 0.05-0.1), the slag type is reasonable, non-ferrous metal and impurity good separating effect for reducing and smelting furnace employing rational formula.5, non-ferrous metal rate of recovery height contains non-ferrous metal≤0.3% (weight percent) in the slag.6, adopt carbon fuel (calorific value 〉=8000kcal/kg), cut down the consumption of energy, burnt rate≤14%, industry optimal parameter.7, " the two circulation lime-gypsum method desulfurization technologies of super-thin spray cyclone double-way ", desulfuration efficiency 〉=90% are adopted in flue gas desulfurization.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1
Referring to Fig. 1; because the water content of solid waste is higher; granularity is very thin; in order to guarantee the temperature in the environmental protection reducing and smelting furnace, the ventilation property of increase furnace charge, improve its specific capacity, with this part filter mud input boiling heating stove and rotary kiln drying; drying temperature is 800 ℃; deliver to by endless belt conveyor and be pressed into the brick shape furnace charge with certain intensity and granularity in the brick press, this brick shape furnace charge is a 240*115*53mm standard square specification, goes into the stove furnace charge as the environmental protection reducing and smelting furnace.The required thermal source of rotary kiln drying is from the carbon powder burning that produces in the environmental protection reduction method production technique carbon shattering process.After dry the water ratio of solid waste is dropped to below 25% by 75～80%, the flue dust that produces in the rotary kiln is handled emptying then through sack cleaner and induced draft fan successively.
Carbon-flux-brick shape furnace charge joins in the reducing and smelting furnace in turn by skip hoist, and flux is quartzite and Wingdale, and each composition proportion is: copper (nickel) mud: quartzite: Wingdale=1: 0.05: 0.05.The carbon burning, its burning liberated heat is enough to make the furnace charge fusing, forms certain reducing atmosphere simultaneously, and this reducing atmosphere is a carbon monoxide, and furnace charge moves from top to bottom, and the reducing and smelting furnace bottom tuyeres is the melting area, furnace charge reaches the tuyere zone fusing.Air blasts through the air port, make the carbon burning at tuyere zone, produce high temperature, high-temperature furnace gas moves from bottom to top, with the furnace charge antikinesis, carry out heat exchange, furnace charge is heated gradually and finishes various smelting processes, thereby obtain smelted products such as liquid copper or liquid nickel, slag, flue gas, flue dust, the retailoring temperature is 1150 ℃.The furnace charge of described reducing and smelting furnace tuyere zone melting is through the cupola well sedimentation, slag separates with copper or nickel clarification, slag is emitted shrend from the slag notch stage, shrend water is recirculated water tower cooler water, liquid copper of gained or liquid nickel are emitted through casting ladle from the discharge port stage and are obtained time blister copper, inferior thick nickel, matte or ice nickel, and along with the continuous fusing of furnace charge, the furnace charge face constantly descends, constantly replenish furnace charge, make the reducing and smelting furnace liftout keep the fixed horizontal charge level of weighing apparatus.
Reducing and smelting furnace adopts full water jacket structure, and water coolant drains near the back pool of power house near the high-order water tower the power house.
The flue gas of discharging from the reducing and smelting furnace top enters exhaust treatment system, respectively after sinking ash tube, sack cleaner combination treatment, removing heavy metal flue dust wherein, after induced draft fan, washing tower, thionizer and chimney emptying.By heavy ash tube, the collected flue dust of sack cleaner, its zinc oxide content be lower than 60% return brick press brickmaking after enter reducing and smelting furnace, zinc oxide content is higher than 60% sell as product.
Embodiment 2
Referring to Fig. 1; because the water content of solid waste is higher; granularity is very thin; in order to guarantee the temperature in the environmental protection reducing and smelting furnace, the ventilation property of increase furnace charge, improve its specific capacity, with this part filter mud input boiling heating stove and rotary kiln drying; drying temperature is 900 ℃; deliver to by endless belt conveyor and be pressed into the brick shape furnace charge with certain intensity and granularity in the brick press, this brick shape furnace charge is a 240*115*53mm standard square specification, goes into the stove furnace charge as the environmental protection reducing and smelting furnace.The required thermal source of rotary kiln drying is from the carbon powder burning that produces in the environmental protection reduction method production technique carbon shattering process.After dry the water ratio of solid waste is dropped to below 25% by 75～80%, the flue dust that produces in the rotary kiln is handled emptying then through sack cleaner and induced draft fan successively.
Carbon-flux-brick shape furnace charge joins in the reducing and smelting furnace in turn by skip hoist, and flux is quartzite and Wingdale, and each composition proportion is: copper (nickel) mud: quartzite: Wingdale=1: 0.1: 0.1.The carbon burning, its burning liberated heat is enough to make the furnace charge fusing, forms certain reducing atmosphere simultaneously, and this reducing atmosphere is a carbon monoxide, and furnace charge moves from top to bottom, and the reducing and smelting furnace bottom tuyeres is the melting area, furnace charge reaches the tuyere zone fusing.Air blasts through the air port, make the carbon burning at tuyere zone, produce high temperature, high-temperature furnace gas moves from bottom to top, with the furnace charge antikinesis, carry out heat exchange, furnace charge is heated gradually and finishes various smelting processes, thereby obtain smelted products such as liquid copper or liquid nickel, slag, flue gas, flue dust, the retailoring temperature is 1250 ℃.The furnace charge of described reducing and smelting furnace tuyere zone melting is through the cupola well sedimentation, slag separates with copper or nickel clarification, slag is emitted shrend from the slag notch stage, shrend water is recirculated water tower cooler water, liquid copper of gained or liquid nickel are emitted through casting ladle from the discharge port stage and are obtained time blister copper, inferior thick nickel, matte or ice nickel, and along with the continuous fusing of furnace charge, the furnace charge face constantly descends, constantly replenish furnace charge, make the reducing and smelting furnace liftout keep the fixed horizontal charge level of weighing apparatus.
Reducing and smelting furnace adopts full water jacket structure, and water coolant drains near the back pool of power house near the high-order water tower the power house.
The flue gas of discharging from the reducing and smelting furnace top enters exhaust treatment system, respectively after sinking ash tube, sack cleaner combination treatment, removing heavy metal flue dust wherein, after induced draft fan, washing tower, thionizer and chimney emptying.By heavy ash tube, the collected flue dust of sack cleaner, its zinc oxide content be lower than 60% return brick press brickmaking after enter reducing and smelting furnace, zinc oxide content is higher than 60% sell as product.
Adopted the two circulation of super-thin spray two-way " lime-gypsum " method desulfurization technology in the flue gas treating process flow process of the present invention, this technology is open in Chinese patent ZL 200510050693.6, is prior art, and the present invention is not repeated.
Though the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technician who is familiar with this technology, change and the retouching done in not breaking away from design of the present invention and scope all should belong to protection scope of the present invention.
Claims (7)
1, the processing method of the nickeliferous solid waste of a kind of Treatment of Copper, it is characterized in that: at first adopt boiling rotary drying method that solid waste is carried out pre-treatment and obtain into the stove furnace charge, adopt reduction method to carry out retailoring then to going into the stove furnace charge, described retailoring is to add carbon fuel in reducing and smelting furnace, its burning liberated heat makes the furnace charge fusing, form the carbon monoxide reducing atmosphere simultaneously, make the metal oxide reduction of copper or nickel, liquid copper that retailoring obtains or liquid nickel obtain time blister copper through casting ladle, inferior thick nickel, matte or ice nickel, the slag that retailoring obtains is recycled through Water Quenching, and the flue gas that retailoring obtains is recycled through exhaust treatment system.
2; the processing method of the nickeliferous solid waste of Treatment of Copper according to claim 1; it is characterized in that: described employing boiling rotary drying method is carried out preprocessing process for the nickeliferous solid waste filter mud of cupric is dry in boiling-rotary kiln to solid waste; drying process adopts carbon powder to burn as thermal source; drying temperature is 800 ℃-900 ℃; the water ratio of solid waste is dropped to below 25%; deliver to again and be pressed into brick shape furnace charge in the briquetting press; this brick shape furnace charge is a 240mm*115mm*53mm standard square specification, and described brick shape furnace charge is gone into the stove furnace charge as the environmental protection reducing and smelting furnace.
3, the processing method of the nickeliferous solid waste of Treatment of Copper according to claim 1, it is characterized in that: described employing reduction method is carried out the retailoring process for carbon to going into the stove furnace charge, flux, brick shape furnace charge joins in the reducing and smelting furnace by skip hoist in turn, furnace charge moves from top to bottom, the reducing and smelting furnace bottom tuyeres is the melting area, furnace charge reaches the tuyere zone fusing, air blasts through the air port, make the carbon burning at tuyere zone, producing high-temperature furnace gas moves from bottom to top, with the furnace charge antikinesis, carry out heat exchange, furnace charge is heated gradually and finishes the retailoring process, described flux is quartzite and Wingdale, copper nickel mud: quartzite: the ratio of Wingdale is 1: 0.05-0.1: 0.05-0.1, the retailoring temperature is 1150 ℃-1250 ℃, and retailoring obtains liquid copper or liquid nickel, slag, flue gas.
4, according to the processing method of claim 1 or the nickeliferous solid waste of 3 described Treatment of Copper, it is characterized in that: described reducing and smelting furnace adopts full water jacket structure, and water coolant drains into back pool from high-order water tower.
5, processing method according to claim 1 or the nickeliferous solid waste of 3 described Treatment of Copper, it is characterized in that: the furnace charge of described reducing and smelting furnace tuyere zone melting is through the cupola well sedimentation, slag separates with copper or nickel clarification, slag is emitted shrend from the slag notch stage, shrend water is recirculated water tower cooler water, liquid copper of gained or liquid nickel are emitted through casting ladle from the discharge port stage and are obtained time blister copper, inferior thick nickel, matte or ice nickel, continuous fusing along with furnace charge, the furnace charge face constantly descends, constantly replenish furnace charge, make the reducing and smelting furnace liftout keep the fixed horizontal charge level of weighing apparatus.
6, according to the processing method of claim 1 or the nickeliferous solid waste of 3 described Treatment of Copper, it is characterized in that: the flue gas that discharge at described reducing and smelting furnace top enters exhaust treatment system, respectively through heavy ash tube, sack cleaner combination treatment, after removing heavy metal flue dust wherein, after induced draft fan, washing tower, thionizer and chimney emptying.
7, the processing method of the nickeliferous solid waste of Treatment of Copper according to claim 6, it is characterized in that: by heavy ash tube, the collected flue dust of sack cleaner, its zinc oxide content is lower than 60% the brick press that returns, enter reducing and smelting furnace after the brickmaking, zinc oxide content is higher than 60% sell as product.
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| CNA2009101012791A CN101597691A (en) | 2009-07-27 | 2009-07-27 | The processing method of the nickeliferous solid waste of Treatment of Copper |
| CN201010177570XA CN101928832A (en) | 2009-07-27 | 2010-05-20 | Method for treating copper-nickel containing solid waste |
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| CNA2009101012791A CN101597691A (en) | 2009-07-27 | 2009-07-27 | The processing method of the nickeliferous solid waste of Treatment of Copper |
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| CN201010177570XA Pending CN101928832A (en) | 2009-07-27 | 2010-05-20 | Method for treating copper-nickel containing solid waste |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101928832A (en) * | 2009-07-27 | 2010-12-29 | 富阳申能固废环保再生有限公司 | Method for treating copper-nickel containing solid waste |
| CN103122416A (en) * | 2013-02-26 | 2013-05-29 | 史汉祥 | Equipment for extracting pure copper and pure zinc from brass and using method thereof |
| CN103131871A (en) * | 2013-02-26 | 2013-06-05 | 史汉祥 | Method for extracting pure copper and pure zinc from brass |
| CN103372563A (en) * | 2012-04-20 | 2013-10-30 | 连云港荣鼎金属有限公司 | Waste treatment method |
| CN104451165A (en) * | 2014-12-18 | 2015-03-25 | 郴州市金贵银业股份有限公司 | Method for recovering nonferrous metals and rare-noble metals |
| CN109988919A (en) * | 2019-04-08 | 2019-07-09 | 江苏源翔合金材料科技有限公司 | A kind of smelting furnace bottom nickel block recovery process |
| CN110055412A (en) * | 2019-04-28 | 2019-07-26 | 广东飞南资源利用股份有限公司 | A kind of method of cupric tin electroplating sludge and desulfurized gesso of flue gas slag cooperative disposal and synthetical recovery copper and tin |
| CN110629028A (en) * | 2019-09-27 | 2019-12-31 | 广东金宇环境科技有限公司 | Process for treating sludge containing copper and nickel by combination method |
| CN110724821A (en) * | 2019-10-31 | 2020-01-24 | 万载志成实业有限公司 | Method for comprehensively recovering valuable metals from low-grade multi-metal hazardous wastes |
| CN111996362A (en) * | 2020-08-26 | 2020-11-27 | 甘肃高能中色环保科技有限公司 | Method for producing nickel block material from nickel-containing solid hazardous waste material |
| CN112030006A (en) * | 2020-07-17 | 2020-12-04 | 中国恩菲工程技术有限公司 | Furnace screening method suitable for nickel matte converting reduction furnace |
| CN113549772A (en) * | 2021-07-13 | 2021-10-26 | 中国瑞林工程技术股份有限公司 | Method for comprehensively recycling valuable metals from copper-containing waste materials |
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2009
- 2009-07-27 CN CNA2009101012791A patent/CN101597691A/en active Pending
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2010
- 2010-05-20 CN CN201010177570XA patent/CN101928832A/en active Pending
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| CN101928832A (en) * | 2009-07-27 | 2010-12-29 | 富阳申能固废环保再生有限公司 | Method for treating copper-nickel containing solid waste |
| CN103372563A (en) * | 2012-04-20 | 2013-10-30 | 连云港荣鼎金属有限公司 | Waste treatment method |
| CN103122416A (en) * | 2013-02-26 | 2013-05-29 | 史汉祥 | Equipment for extracting pure copper and pure zinc from brass and using method thereof |
| CN103131871A (en) * | 2013-02-26 | 2013-06-05 | 史汉祥 | Method for extracting pure copper and pure zinc from brass |
| CN103122416B (en) * | 2013-02-26 | 2014-03-26 | 慈溪市玖发铜业有限公司 | Equipment for extracting pure copper and pure zinc from brass and using method thereof |
| CN104451165A (en) * | 2014-12-18 | 2015-03-25 | 郴州市金贵银业股份有限公司 | Method for recovering nonferrous metals and rare-noble metals |
| CN109988919A (en) * | 2019-04-08 | 2019-07-09 | 江苏源翔合金材料科技有限公司 | A kind of smelting furnace bottom nickel block recovery process |
| CN110055412A (en) * | 2019-04-28 | 2019-07-26 | 广东飞南资源利用股份有限公司 | A kind of method of cupric tin electroplating sludge and desulfurized gesso of flue gas slag cooperative disposal and synthetical recovery copper and tin |
| CN110629028A (en) * | 2019-09-27 | 2019-12-31 | 广东金宇环境科技有限公司 | Process for treating sludge containing copper and nickel by combination method |
| CN110724821A (en) * | 2019-10-31 | 2020-01-24 | 万载志成实业有限公司 | Method for comprehensively recovering valuable metals from low-grade multi-metal hazardous wastes |
| CN112030006A (en) * | 2020-07-17 | 2020-12-04 | 中国恩菲工程技术有限公司 | Furnace screening method suitable for nickel matte converting reduction furnace |
| CN112030006B (en) * | 2020-07-17 | 2022-05-31 | 中国恩菲工程技术有限公司 | Furnace screening method suitable for nickel matte converting reduction furnace |
| CN111996362A (en) * | 2020-08-26 | 2020-11-27 | 甘肃高能中色环保科技有限公司 | Method for producing nickel block material from nickel-containing solid hazardous waste material |
| CN113549772A (en) * | 2021-07-13 | 2021-10-26 | 中国瑞林工程技术股份有限公司 | Method for comprehensively recycling valuable metals from copper-containing waste materials |
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| CN101928832A (en) | 2010-12-29 |
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Open date: 20091209 |