CN105782986A - Cooperative treatment technology for copper-containing electronic wastes - Google Patents
Cooperative treatment technology for copper-containing electronic wastes Download PDFInfo
- Publication number
- CN105782986A CN105782986A CN201610146791.8A CN201610146791A CN105782986A CN 105782986 A CN105782986 A CN 105782986A CN 201610146791 A CN201610146791 A CN 201610146791A CN 105782986 A CN105782986 A CN 105782986A
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- Prior art keywords
- cupric
- electron wastes
- components
- process technique
- flue gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a cooperative treatment technology for copper-containing electronic wastes. In the technology, soot sludge, neutral dregs and electronic parts and components are treated by a pyrogenic-process shaft furnace smelting technology, and perfect environmental protection systems including waste heat utilization, smoke treatment and the like are used in an assisted manner. The cooperative treatment technology for the copper-containing electronic wastes specifically comprises the following steps: pretreatment, smelting, secondary combustion, waste heat recovery, smoke treatment and the like. By the treatment technology, waste mixed electronic parts and components, circuit boards with parts and components, circuit boards with cloth bag parts and components, electroplating sludge and smelting soot can be cooperatively treated in batches; by the treatment technology, labor for treatment and disposal can be greatly reduced, and energy consumption is also reduced; and by the treatment technology disclosed by the invention, the emission reduction effect is quite obvious, smoke emission can reach the standard, valuable metals are recycled effectively, and generated furnace slag can be used for building materials.
Description
Technical field
The present invention relates to electron wastes processing technology field, be specifically related to the collaborative process technique of a kind of waste and old electric components and parts and smelting ash and electroplating sludge the like waste.
Background technology
Discarded electric appliance and electronic product has become fastest-rising " city " rubbish, other poisonous and harmful substances such as heavy metal and halogen flame such as lead therein, chromium, hydrargyrum, cadmium be electron wastes process dispose in the main source of secondary pollution.Although China disassembles enterprise's sum currently for the fixed point of " four machine one brains " such as useless computer, useless television set, useless refrigerator, useless air conditioner, useless washing machinees has reached 107, but the overwhelming majority is for disassembling classification enterprise, disassemble all kinds of excess of tearing open of classification gained still in waiting for an opportunity distribution state.Dispose as these back-end processing tearing excess open, there is no high in technological content, the obvious demonstration project of scale and benefit and Demonstration Enterprise.
At present, process the mixed materials such as flue dust mud, electronic devices and components, neutralization slag and mainly adopt physical separation and chemolysis.
The domestic directly employing smelting process that there is no processes the enterprise of electronic waste, the process of electronic waste is mainly adopted following two processing method, one is burning and the acid-hatching of young eggs of family workshop type, and another is that current 107 waste household appliances fixed point is disassembled the physics that enterprise adopts and disassembled-cracking and sorting method.
The burning of family workshop type and the acid-hatching of young eggs: the mode that the electron wastes such as the waste household appliances through disassembling adopt open incineration being carried out metal and nonmetallic separation, obtains hybrid metal incineration slag, volume of smoke arbitrarily discharges；Or the mineral acids such as electron wastes sulphuric acid such as wiring board are soaked, part metals is dissolved and enters solution, then carry out the operations such as reduction and wait until metal.Produce the spent acid and immersion waste residue, serious harm environment and the ecological safety that are more difficult to dispose in a large number.Country has prohibited simple burning of employing and has processed disposal electron wastes with acidleach mode.
Physics disassembles-cracking and sorting method: adopts mechanically and electrically power driven tools mode to carry out disassembling rough segmentation by electron wastes such as waste household appliances, obtains the materials such as cabinet, circuit board, glass；Then pass through multiple stage crushing multipass sort mode by the metal in useless circuit board and nonmetal to be easily separated.Gained is disassembled excess and is carried out classification sale.
Physics disassembles-and the advantage of cracking and sorting method is without chemical substances such as soda acids, it does not have and waste water produces.But shortcoming is clearly: one be for disassemble a large amount of mixed electron components of gained cannot be carried out process, these electronic devices and components are still in, as hazardous waste major part, the state of storing up；Two be disassemble-crush-the artificial and energy that consumes of sorting process is more, noise and the dust of generation are bigger；Three is be difficult to process large batch of electronic devices and components the like waste.
Advantages of the present invention is obvious, one be can the waste and old mixed electron components of mass disposal, with the circuit board of components and parts, the wiring board of cloth bag components and parts and electroplating sludge and smelting ash；Two is used artificial and energy resource consumption is few；Three is that emission reduction effect is obvious.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the collaborative process technique of a kind of cupric electron wastes.
Technical scheme is as follows:
The collaborative process technique of a kind of cupric electron wastes, comprises the steps:
1) stir broken for cupric electron wastes, and send into ball processed on marble forming machine；
2) burning in shaft furnace sent into by the pelletizing prepared by marble forming machine and adjuvant；
3) by step 2) in pelletizing and adjuvant burning produce high-temperature dust-containing flue gas second-time burning at 1200 DEG C of temperature, gas residence time was more than 2 seconds, and sedimented particle dust；
4) by step 3) high-temperature flue gas that produces carries out after heat recovery through waste-heat recovery device, processes through chilling, activated carbon injection absorption, bag-type dust and spray-absorption flue gas treating process, discharge after up to standard；
5) by step 2) in pelletizing burning after motlten metal cooling molding, obtain alloy copper ingot.
Specifically, described step 5) in alloy copper ingot copper content more than 80%, total amount of metal is more than 95%.
Specifically, described step 3) and 4) in flue gas sequentially pass through discharge after dual firing chamber, chilling tower, activated carbon spraying system, sack cleaner and spray column.
Specifically, described adjuvant is carbon, limestone and bloodstone.
Specifically, the adjuvant charging sequence of described charge door is that carbon, limestone, bloodstone are at furnace roof alternate feeding.
Specifically, the charge door of described shaft furnace is material envelope formula charge door.Charge door is designed to loading hopper shape and fire door is sealed, and loading hopper keeps the furnace charge of necessary amount, to form the stove envelope of necessity, instead of traditional open type charge door.
The invention has the beneficial effects as follows: the process technique of the present invention can work in coordination with in high volume and process waste and old mixed electron components, with the circuit board of components and parts, the wiring board of cloth bag components and parts and electroplating sludge and smelting ash；The process technique of the present invention can greatly reduce process and disposes used artificial and reduce energy resource consumption；The emission reduction effect of the process technique of the present invention is fairly obvious, fume treatment can qualified discharge, valuable metal obtains high efficiente callback, and the slag of generation may be used for building materials.
Accompanying drawing explanation
Fig. 1 is the process chart of the collaborative process technique of a kind of cupric electron wastes of the present invention.
Detailed description of the invention
In order to make the object of the invention, technical scheme and advantage clearly understand, below in conjunction with example, the present invention is described in further detail.
The collaborative process technique of a kind of cupric electron wastes, comprises the steps:
1) after the raw material such as flue dust and mud, neutralization slag, electronic devices and components enters factory there is material storage yard in heap, bulk materials is through broken, prepare all kinds of waste material mixtures according to the chemical examination content of associated metal in waste material, carry out spice, mixing in spice field, and send into ball processed on marble forming machine；
2) pelletizing prepared by marble forming machine and carbon, limestone, bloodstone etc. assist material to send into burning in shaft furnace, correlative is descending under Gravitative Loads, preheated band, zone of reduction, complete to smelt overall process, cooling and shaping, product alloy copper ingot copper content more than 80%, total amount of metal more than 95%, regularly from copper mouth discharge, slag cupric about 0.6%, sells outside after water is broken；
3) by step 2) in pelletizing burning produce high-temperature dust-containing flue gas enter dual firing chamber, blast combustion air, natural gas, making the CO in uncombusted material and flue gas fully burn at higher than 1200 DEG C of temperature, gas residence time was more than 2 seconds, and settled big dust particle；
4) by step 3) high-temperature flue gas that produces produces steam through waste heat boiler recovery waste heat, make flue gas cool-down to about 600 DEG C, enter back into chilling tower, make flue gas be quenched to about 150 DEG C, and in exhaust pass, spray into two English that may be present, SO in activated carbon, slaked lime absorption flue gas2, the harmful gas such as NOx, then flue gas enters sack cleaner, and dust contained flue gas is down to 20mg/Nm3Below.Tail gas adopts NaOH solution spray washing, further the SO in elimination flue gas2With impurity such as halogens.Flue gas absorbs liquid counter current contacting with NaOH from bottom to top from top to bottom from top in reverse jet tube, after gas-liquid is fully contacted, and SO2Absorb liquid with halogen with NaOH to react, generate Na2SO3, NaCl etc., flue-gas temperature is down to～70 DEG C simultaneously, the SO of more than 93% in flue gas2Being absorbed, more than 96% HCl is absorbed, and the neat stress after up to standard imports 45 meters of high chimney emission.
As preferably, the charge door of shaft furnace is material envelope formula charge door, and the adjuvant charging sequence of described charge door is that carbon, limestone, bloodstone are at furnace roof alternate feeding.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (6)
1. the collaborative process technique of a cupric electron wastes, it is characterised in that comprise the steps:
1) stir broken for cupric electron wastes, and send into ball processed on marble forming machine；
2) burning in shaft furnace sent into by the pelletizing prepared by marble forming machine and adjuvant；
3) by step 2) in pelletizing and adjuvant burning produce high-temperature dust-containing flue gas second-time burning at 1200 DEG C of temperature, gas residence time was more than 2 seconds, and sedimented particle dust；
4) by step 3) high-temperature flue gas that produces carries out after heat recovery through waste-heat recovery device, processes through chilling, activated carbon injection absorption, bag-type dust and spray-absorption flue gas treating process, discharge after up to standard；
5) by step 2) in pelletizing burning after motlten metal cooling molding, obtain alloy copper ingot.
2. the collaborative process technique of a kind of cupric electron wastes according to claim 1, it is characterised in that: described step 5) in alloy copper ingot copper content more than 80%, total amount of metal is more than 95%.
3. the collaborative process technique of a kind of cupric electron wastes according to claim 1, it is characterised in that: described step 3) and 4) in flue gas sequentially pass through discharge after dual firing chamber, chilling tower, activated carbon spraying system, sack cleaner and spray column.
4. the collaborative process technique of a kind of cupric electron wastes according to claim 1, it is characterised in that: described adjuvant is carbon, limestone and bloodstone.
5. the collaborative process technique of a kind of cupric electron wastes according to claim 4, it is characterised in that: the adjuvant charging sequence of described charge door is that carbon, limestone, bloodstone are at furnace roof alternate feeding.
6. the collaborative process technique of a kind of cupric electron wastes according to claim 1, it is characterised in that: the charge door of described shaft furnace is material envelope formula charge door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146791.8A CN105782986A (en) | 2016-03-15 | 2016-03-15 | Cooperative treatment technology for copper-containing electronic wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146791.8A CN105782986A (en) | 2016-03-15 | 2016-03-15 | Cooperative treatment technology for copper-containing electronic wastes |
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| CN105782986A true CN105782986A (en) | 2016-07-20 |
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| CN201610146791.8A Pending CN105782986A (en) | 2016-03-15 | 2016-03-15 | Cooperative treatment technology for copper-containing electronic wastes |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807726A (en) * | 2017-01-17 | 2017-06-09 | 安徽工业大学 | Titanium-containing blast furnace slag cooperates with full constituent method of resource with waste printed circuit board |
| CN106834737A (en) * | 2016-12-29 | 2017-06-13 | 荆门市格林美新材料有限公司 | A kind of circuit board pyrolytic product briquetting and preparation method thereof |
| CN107441915A (en) * | 2017-07-31 | 2017-12-08 | 合肥国轩高科动力能源有限公司 | Treatment method of waste gas generated by cracking waste power batteries |
| CN107726331A (en) * | 2017-09-04 | 2018-02-23 | 邹资生 | Wiring board burns smelting furnace and wiring board burns smelting process |
| CN108096960A (en) * | 2017-12-25 | 2018-06-01 | 孟婷婷 | A kind of energy-saving type plastic extruder filter screen combustion tail gas processing unit and method |
| CN108592048A (en) * | 2017-12-25 | 2018-09-28 | 界首市菁华科技信息咨询服务有限公司 | Circuit board incineration tail gas cleaning device and method |
| CN108870416A (en) * | 2018-04-09 | 2018-11-23 | 尚圣杰 | Circuit board disassembles castoff burning tail gas cleaning device and method |
| CN109827178A (en) * | 2018-12-28 | 2019-05-31 | 重庆盎瑞悦科技有限公司 | Using the method for the self- propagating accumulation of heat incinerator removal dry salt organic matter of polyphenylene sulfide by-product |
| CN110538537A (en) * | 2019-09-12 | 2019-12-06 | 广东工业大学 | waste PCB recovery processing method and recovery processing device |
| CN110976481A (en) * | 2019-12-09 | 2020-04-10 | 洛南环亚源铜业有限公司 | Copper-containing hazardous waste treatment process |
| CN113528825A (en) * | 2021-06-25 | 2021-10-22 | 江西华赣瑞林稀贵金属科技有限公司 | Method for smelting and recovering valuable metals by electronic waste and multi-metal solid waste |
| CN114733656A (en) * | 2022-04-25 | 2022-07-12 | 江苏泓润生物质能科技有限公司 | Kitchen waste synchronous phase-splitting deslagging and impurity removing system used after pretreatment |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106834737A (en) * | 2016-12-29 | 2017-06-13 | 荆门市格林美新材料有限公司 | A kind of circuit board pyrolytic product briquetting and preparation method thereof |
| CN106807726B (en) * | 2017-01-17 | 2019-03-22 | 安徽工业大学 | Titanium-containing blast furnace slag cooperates with full constituent method of resource with waste printed circuit board |
| CN106807726A (en) * | 2017-01-17 | 2017-06-09 | 安徽工业大学 | Titanium-containing blast furnace slag cooperates with full constituent method of resource with waste printed circuit board |
| CN107441915A (en) * | 2017-07-31 | 2017-12-08 | 合肥国轩高科动力能源有限公司 | Treatment method of waste gas generated by cracking waste power batteries |
| CN107726331A (en) * | 2017-09-04 | 2018-02-23 | 邹资生 | Wiring board burns smelting furnace and wiring board burns smelting process |
| CN107726331B (en) * | 2017-09-04 | 2019-05-07 | 邹资生 | Wiring board burns smelting furnace and wiring board burns smelting process |
| CN108096960A (en) * | 2017-12-25 | 2018-06-01 | 孟婷婷 | A kind of energy-saving type plastic extruder filter screen combustion tail gas processing unit and method |
| CN108592048A (en) * | 2017-12-25 | 2018-09-28 | 界首市菁华科技信息咨询服务有限公司 | Circuit board incineration tail gas cleaning device and method |
| CN108870416A (en) * | 2018-04-09 | 2018-11-23 | 尚圣杰 | Circuit board disassembles castoff burning tail gas cleaning device and method |
| CN109827178A (en) * | 2018-12-28 | 2019-05-31 | 重庆盎瑞悦科技有限公司 | Using the method for the self- propagating accumulation of heat incinerator removal dry salt organic matter of polyphenylene sulfide by-product |
| CN110538537A (en) * | 2019-09-12 | 2019-12-06 | 广东工业大学 | waste PCB recovery processing method and recovery processing device |
| CN110538537B (en) * | 2019-09-12 | 2022-03-04 | 广东工业大学 | Waste PCB recovery processing method and recovery processing device |
| CN110976481A (en) * | 2019-12-09 | 2020-04-10 | 洛南环亚源铜业有限公司 | Copper-containing hazardous waste treatment process |
| CN110976481B (en) * | 2019-12-09 | 2021-10-08 | 洛南环亚源铜业有限公司 | Copper-containing hazardous waste treatment process |
| CN113528825A (en) * | 2021-06-25 | 2021-10-22 | 江西华赣瑞林稀贵金属科技有限公司 | Method for smelting and recovering valuable metals by electronic waste and multi-metal solid waste |
| CN114733656A (en) * | 2022-04-25 | 2022-07-12 | 江苏泓润生物质能科技有限公司 | Kitchen waste synchronous phase-splitting deslagging and impurity removing system used after pretreatment |
| CN114733656B (en) * | 2022-04-25 | 2024-01-23 | 江苏泓润生物质能科技有限公司 | Synchronous split-phase deslagging and impurity removing system for pretreated kitchen waste |
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