CN104479756A - Water-vapor gasification separation apparatus and method for waste printed circuit boards - Google Patents
Water-vapor gasification separation apparatus and method for waste printed circuit boards Download PDFInfo
- Publication number
- CN104479756A CN104479756A CN201410619847.8A CN201410619847A CN104479756A CN 104479756 A CN104479756 A CN 104479756A CN 201410619847 A CN201410619847 A CN 201410619847A CN 104479756 A CN104479756 A CN 104479756A
- Authority
- CN
- China
- Prior art keywords
- reactor
- gas
- circuit board
- printed circuit
- circuit boards
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/06—Continuous processes
- C10J3/14—Continuous processes using gaseous heat-carriers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/62—Processes with separate withdrawal of the distillation products
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Abstract
The invention provides a water-vapor gasification separation apparatus and a method for waste printed circuit boards. The method comprises the following steps: (1) adding a molten salt into a reaction furnace, pouring waste printed circuit boards into the reaction furnace under a normal pressure in an oxygen-free atmosphere, and controlling the reaction temperature to be 600-700 DEG C, so as to rapidly pyrolyze organics on circuit boards in the molten salt bath and generates products of an organic gas, coke and tar; and (2) performing water gas reaction on coke generated through pyrolysis and water vapor, so as to generate hydrogen and carbon dioxide. Metals in the circuit boards can be effectively separated and recovered after organics in the waste circuit boards are pyrolyzed and gasified. Hydrogen and the organic gas generated in the pyrolysis gasification separation process of the waste circuit boards in the salt bath can be used as fuels, and toxic halides contained in the waste circuit boards are absorbed by the molten salt and is converted into stable inorganic salts.
Description
Technical field
The present invention relates to solid waste resource recovery technology field, particularly relate to a kind of steam gasification tripping device and method of abandoned printed circuit board.
Background technology
For the recovery of electron wastes, most important process metal is wherein separated with plastics and classifies, and then recycles disaggregatedly.For large-scale electron wastes, as refrigerator, TV, washing machine etc., shell ratio is easier to hand and carries out classification recovery, and for miniature electric waste or electronic component, as printed-wiring board (PWB), MP3, mobile phone etc., adopt manual method to be difficult to carry out further metal and be separated with plastics and classify.For this kind of small-sized waste of printed-wiring board (PWB), separating metal has thermal degradation to be separated with the traditional method of plastics, separated and dissolved is separated with Mechanical Crushing.In these methods, thermal degradation partition method is by the plastics in burning or thermolysis discarded circuit board, because Organohalogen compounds such as the bromine contained in plastics, chlorine, under the catalysis of metallic copper, very easily cause the generation of a large amount of toxic gas dioxin, bring very big pollution to air ambient; Separated and dissolved method utilizes strong acid dissolution refinement useful metal wherein, and the liquid waste disposal of generation is expensive, and improper disposal often causes larger secondary pollution to environment; Mechanical Crushing partition method needs that abandoned printed circuit board is crushed to very small-particle and just can effectively be separated, this needs to consume a large amount of electric power, and be difficult to accomplish that metal is separated completely with nonmetallic, in addition, plastics after separation are because of moiety complexity and containing the Organohalogen compounds such as bromine, chlorine, being difficult to direct second stage employ is fuel, or is used for doing industrial chemicals.How effectively metal and nonmetally to separate, and effectively utilize these non-metallic material, mainly plastics, be the difficult problem in abandoned printed circuit board removal process at present always.
Summary of the invention
The object of the invention is to the defect solving the existence of above-mentioned prior art, a kind of steam gasification separation method of efficient abandoned printed circuit board is provided.
A steam gasification tripping device for abandoned printed circuit board, comprises reactor, described reactor is provided with an inlet pipe, reaction product escape pipe, charging device; The bottom at reactor is stretched in one end of described inlet pipe, and the other end is connected with primary heater unit, and primary heater unit passes through pipeline communication with tank and carrier gas respectively, and the outer setting of described reactor has heating unit; Described reaction product escape pipe and heating unit are connected with temperature-control device; The outlet of described reaction product escape pipe is communicated with tar gathering system, and the air outlet of tar gathering system is communicated with gas collector.
Further, the steam gasification tripping device of abandoned printed circuit board as above, is provided with gas meter between carrier gas and primary heater unit.
Further, the steam gasification tripping device of abandoned printed circuit board as above, is provided with the adjustable water pump of flow between tank and primary heater unit.
Further, the steam gasification tripping device of abandoned printed circuit board as above, the end of described inlet pipe is in the bottom of reactor.
Further, the steam gasification tripping device of abandoned printed circuit board as above, described tar gathering system comprises refrigerating unit and collection device, and described collection device skin has flowing coating of cooling liquid.
A steam gasification separation method for abandoned printed circuit board, comprises the following steps:
(1) add melting salt in the reactor, pass into carrier gas by inlet pipe in reactor, make atmosphere in reactor be no oxygen atmosphere;
(2) when the atmosphere in reactor is oxygen-free atmosphere, heated to reactor by heating unit, and make the temperature in reactor control at 600-700 DEG C by temperature controlling system;
(3) start water vapour device, by primary heater unit, water vapour and carrier gas are heated to desired reaction temperature 600-700 DEG C, the mol ratio of water vapour and carrier gas controls at 9:1, passing into speed is 5-100ml/min, is passed into the inlet pipe of reactor bottom, stirs melting salt;
(4) abandoned printed circuit board is loaded at ambient pressure the charging device of reactor head, temperature of reaction is at 600-700 DEG C; Feeding stage ensures that the atmosphere in reactor keeps no oxygen atmosphere, organic composition in wiring board is by fast pyrogenation, the product generated comprises: organic gas, coke and tar, coke and water vapour, and its coal-tar middle oil and organic gas enters into tar gathering system by reaction product escape pipe; Coke and steam pyrolysis generation water-gas gasification reaction generate hydrogen and carbonic acid gas; Poisonous halogenide on discarded circuit board is melted salt and absorbs and be converted into stable inorganic salt, collects use after the organic gas cooling of generation through gas gathering system.
Further, the steam gasification separation method of abandoned printed circuit board as above, described melting salt is the mixture of Quilonum Retard, salt of wormwood, sodium carbonate, and its mass ratio is 1:1:1.
Further, the steam gasification separation method of abandoned printed circuit board as above, described carrier gas is nitrogen or rare gas element.
The present invention, to the metal separation successful of abandoned printed circuit board, can isolate bulk metal, and need not do pulverizing in advance.Compare with mechanical crushing method, organic efficiency is high, and cost is low, and plastics can direct gasification become clean inflammable gas to be used, and generation is polluted little.
Accompanying drawing explanation
Fig. 1 is the steam gasification tripping device structural representation of abandoned printed circuit board of the present invention;
Fig. 2 is the steam gasification isolation technique schematic diagram under melting salt;
Fig. 3 is the steam gasification Principle of Process schematic diagram of organic composition in discarded circuit board
Fig. 4 is the products collection efficiency having, generate without discarded circuit board steam gasification under melting salt organic composition;
Fig. 5 is the component of organic composition gasification reaction gaseous product in discarded circuit board under melting salt;
Fig. 6 is for having, without melting salt gasified speed of reaction;
Fig. 7 is the gasification reaction speed of differing temps under melting salt.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below technical scheme in the present invention be clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of steam gasification tripping device of abandoned printed circuit board, as shown in Figure 1, device provided by the invention comprises reactor 1, described reactor is provided with an inlet pipe 11, reaction product escape pipe 14, charging device 9; One end of described inlet pipe 11 is stretched in the bottom of reactor 1, and the other end is connected with primary heater unit 10, and primary heater unit 10 passes through pipeline communication with tank 7 and nitrogen/inert gas container 8 respectively, and the outer setting of described reactor 1 has heating unit 3; Described reaction product escape pipe 14 is connected with temperature-control device 5 with heating unit 3; The outlet of described reaction product escape pipe 14 is communicated with tar gathering system 12, and the air outlet of tar gathering system 12 is communicated with gas collector 13.Gas meter 4 is provided with between inert gas container 8 and primary heater unit 10.The water pump 6 of regulating flow quantity is provided with between tank 7 and primary heater unit 10.
The steam gasification tripping device of abandoned printed circuit board provided by the invention, obvious to the separating effect of wiring board, relatively large metal can be isolated, and the pulverizing need not done in advance, compare with mechanical crushing method, organic efficiency is high, and cost is low, plastics can direct gasification become clean inflammable gas to be used, and generation is polluted little.
The present invention also provides a kind of steam gasification separation method of abandoned printed circuit board, and the method comprises the following steps:
(1), melting salt is added in reactor 1, given in reactor 1 by inlet pipe 11 and pass into rare gas element, atmosphere in reactor 1 is made to be no oxygen atmosphere, nitrogen or rare gas element pass into reaction end as carrier gas simultaneously continuously, its speed is 5-100ml/min, and described melting salt is the inorganic salt mixt waiting the Quilonum Retard of mass ratio, salt of wormwood, sodium carbonate;
(2) when the atmosphere in reactor 1 is oxygen-free atmosphere, heat to reactor 1 by heating unit 3, and by temperature controlling system 5, the temperature in reactor 1 is controlled at 600-700 DEG C.At this moment, molten salt mixture has become molten state (its fusing point is about 403 DEG C).
(3) start water vapour device, by primary heater unit 10, water vapour and nitrogen are heated to temperature required 600-700 DEG C, the mol ratio 9:1 of water vapour and nitrogen, through the inlet pipe 11 be passed into bottom reactor 1, stir the inorganic salt mixt of molten state, water vapour is as water-gas reaction gas simultaneously.
(4) by the charging device 9 at reactor 1 top, drop under abandoned printed circuit board normal pressure in reactor 1, temperature of reaction is at 600-700 DEG C; Feeding stage ensures that the atmosphere in reactor 1 keeps no oxygen atmosphere, organism on wiring board fast pyrogenation in molten salt bath, product comprises organic gas, coke and tar, enters into tar gathering system 12 after tar and organic gas are cooled by air outlet;
(5), simultaneously, pyrogenous origin coke and water vapour generation water-gas reaction generate hydrogen and carbonic acid gas, poisonous halogenide on discarded circuit board is melted salt and absorbs and be converted into stable inorganic salt, collects use after the organic gas cooling of generation through gas gathering system 13.
Separation method provided by the invention, after the organic substance pyrolytic gasification in discarded circuit board, the metal in wiring board effectively can be separated, be reclaimed.The poisonous halogenide that the hydrogen generated in discarded circuit board sepn process in salt bath and organic gas can be used as containing in fuel, discarded circuit board is melted salt and absorbs and be converted into stable inorganic salt.The present invention is obvious to the separating effect of wiring board, can isolate more complete block of metal, and need not do pulverizing in advance.Compare with mechanical crushing method, metal recovery efficiency is high, and it is little that organic composition effectively utilizes generation to pollute.Compared with direct gasification, temperature of reaction is lower, and reaction is carried out at ambient pressure, and equipment requirements is not high.
The present invention's utilization adds melting salt and (waits the Quilonum Retard of mass ratio, calcium carbonate, sodium carbonate mixture), steam gasification reaction decomposes is realized to the organic composition in discarded circuit board, gas conversions is high, as shown in Figure 4, separation method gas conversions of the present invention accounts for 60% of organic matter in discarded plate, the main moiety of gas is that hydrogen (accounts for 58% volume percent, Fig. 5), other organic gas volume percent account for 13.1%, Fig. 5, in Fig. 5, other account for 3.8), speed of response is fast (see Fig. 6, the slope of heavy line is speed of reaction, slope is larger, speed of response is faster)---reaction conditions is 675 DEG C, reaction raw materials is circuit board substrate, metal separation is effective.
The present invention is by adding melting salt in reactor 1, (temperature is high between 600-700 DEG C for temperature of reaction, reactivity is faster, but it is higher to the requirement of equipment, energy consumption is larger, through Experimental Comparison, temperature just can meet the requirement in application more than 600 DEG C, see that accompanying drawing 6, k is speed of reaction, T is temperature of reaction, reaction raw materials is circuit board substrate) under normal pressure, in molten salt bath, add discarded circuit board raw material, the organic substance in discarded circuit board can change into gaseous constituent under the catalysis of melting salt, can be used as combustible gas; Poisonous halogenide in waste can be melted salt and absorbs and be converted into stable inorganic salt.After organic composition decomposes, metal can be well separated, and is convenient to further smelting, realizes Environmental-protection recycling and reclaims.
The main organic composition of discarded circuit board is plastics (as resin, PVC, PS etc.), and principal reaction is in the reactor divided into the first step fast pyrogenation to react and second step water-gas gasification reaction.As shown in Figure 3, first, plastics are fast pyrogenation in molten salt bath, produces thing and mainly contains organic gas, coke and tar.Second step, pyrogenous origin coke and water vapour generation water-gas reaction generate hydrogen and carbonic acid gas.
So the steam gasification for organic substance reacts, its principal reaction equation can be expressed as into:
C+H
2O→CO+H
2ΔH
298＝131kJ/mol
CO+H
2O→CO
2+H
2ΔH
298＝-41.2kJ/mol
Application the inventive method, shows, under the existence of melting salt the result of circuit board substrate, organic gasification result is obvious, generate without intermediate product coke, primary product is gas (about 60%), phenol and tar (as shown in Figure 4), can later use.The organic compositions such as plastics are converted into gas and tar is collected through cooling tower, and remaining metal natural separation, can take out from molten salt bath.
Beneficial effect:
1, under melting salt to the one-part form process of abandoned printed circuit board
Electric equipment products kind is varied, and structure, material, component are also different, at present, often adopts the handwork separation of poor efficiency or mechanical disintegration to be separated carry out pre-treatment for the abandoned printed circuit board being difficult to split and electronic component.In the present invention, organic substance gasification process is carried out to abandoned printed circuit board.Do not need pre-dismounting and pulverize, just can carry out gasification to organic composition wherein and generate inflammable gas, thus making metal separation simpler, metal and plastics realize one-part form process.Traditional mechanical crushing method, be that wiring board is crushed to very fine particle, then through the technology such as magnetic separation, flotation, metal and plastics separated, the later use of plastics also needs other complicated technologies.
2, bromine, chlorine innoxious
In abandoned printed circuit board, often containing a large amount of brominated, chlorine organic compound in the plastics of use, this makes the recycling of plastics become difficulty.Particularly in oxy combustion pyrolysis, under the catalysis of metallic copper, the generation of ， dioxin toxic gas is difficult to avoid, and makes the plastics in waste be difficult to directly utilize as clean fuel.And the present invention is under melting salt, reactive absorption can be carried out to poisonous brominated, chlorine compound, carbonate can with intermediate product hydrogenchloride, reaction of hydrogen bromide, slough bromine and chlorine, finally reach inorganization safe retrieving.
3, reaction conditions is gentle, and equipment requirements is not high
Common water-gas gasification reaction is at high temperature 1000 DEG C of ability rapid reaction, this reaction at ambient pressure, temperature of reaction 600-700 DEG C, less demanding to Reaktionsofen.
4, the recovery of metal is more simple easily
This technology, (as can be seen from reaction equation under reducing gas atmosphere, carbon monoxide is main intermediate product, this reacts obstructed air or oxygen, what carrier gas adopted is nitrogen or rare gas element), thus decrease the oxidation of metal, simultaneously after converting-plastics becomes gas and tar is discharged, metal need not be pulverized and just can effectively be separated (comparing with the broken apart method of tradition machinery), and this Metal smelting to back segment recycling is more economical simple.
5, effective utilization of complicated plastic material
In wiring board, because of the requirement manufactured and on cost, the use of plastics is more and more extensive, and the plastics kind used is also various, is difficult to carry out classification and reclaims, under the trend of the integrated manufacture of electronic product, functional part together with plastic cement is injection-moulded in metallic element often, is difficult to be separated; Brominated flame-retardant simultaneously, and chloride PVC insulating material is widely used.These bring great difficulty all to effective utilization of the parts of plastics of abandoned printed circuit board.This technology, plastic components need not be separated classification, just can directly be used for manufacturing inflammable gas as energy utilization.(regardless of which kind of plastics, as epoxy resin, resol, PC, PVC, PS, PE etc., if adopt this technology, the product obtained is that gas and tar do fuel use, if adopt Mechanical Crushing partition method, the plastic hybrid of the complexity after separation is difficult to carry out chemical recovery further, usually adopts physiochemical mutagens, as paved the way).
Separation method provided by the invention, plastics directly change into gas and are used, and the toxic ingredient in plastics is removed simultaneously, and according to the mechanical crushing method of prior art, plastics after separation need again to process (such as burning, pyrolysis), simultaneously in order to avoid secondary pollution also must add dehalogenation technique, therefore, not only technique is simple for the separation method of hinge structure of the present invention, and cost is low.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. the steam gasification tripping device of an abandoned printed circuit board, it is characterized in that, comprise reactor (1), described reactor is provided with an inlet pipe (11), reaction product escape pipe (14), charging device (9); The bottom in reactor (1) is stretched in one end of described inlet pipe (11), the other end is connected with primary heater unit (10), primary heater unit (10) respectively with tank (7) and carrier gas (8) by pipeline communication, the outer setting of described reactor (1) has heating unit (3); Described reaction product escape pipe (14) and heating unit (3) are connected with temperature-control device (5); The outlet of described reaction product escape pipe (14) is communicated with tar gathering system (12), and the air outlet of tar gathering system (12) is communicated with gas collector (13).
2. the steam gasification tripping device of abandoned printed circuit board according to claim 1, is characterized in that, is provided with gas meter (4) between carrier gas (8) and primary heater unit (10).
3. the steam gasification tripping device of abandoned printed circuit board according to claim 1, is characterized in that, is provided with the adjustable water pump of flow (6) between tank (7) and primary heater unit (10).
4. the steam gasification tripping device of abandoned printed circuit board according to claim 1, is characterized in that, the end of described inlet pipe (11) is in the bottom of reactor (1).
5. the steam gasification tripping device of abandoned printed circuit board according to claim 1, is characterized in that, described tar gathering system (12) comprises refrigerating unit and collection device, and described collection device skin has flowing coating of cooling liquid.
6. a steam gasification separation method for abandoned printed circuit board, is characterized in that, comprise the following steps:
(1) in reactor (1), add melting salt, pass into carrier gas by inlet pipe (11) in reactor (1), make atmosphere in reactor (1) be no oxygen atmosphere;
(2) when the atmosphere in reactor (1) is oxygen-free atmosphere, by heating unit (3) to reactor (1) heating, and the temperature in reactor (1) is made to control at 600-700 DEG C by temperature controlling system (5);
(3) start water vapour device, by primary heater unit (10), water vapour and carrier gas are heated to desired reaction temperature 600-700 DEG C, the mol ratio of water vapour and carrier gas controls at 9:1, passing into speed is 5-100ml/min, be passed into the inlet pipe (11) of reactor (1) bottom, melting salt is stirred;
(4) abandoned printed circuit board is loaded at ambient pressure the charging device (9) at reactor (1) top, temperature of reaction is at 600-700 DEG C; Feeding stage ensures that the atmosphere in reactor (1) keeps no oxygen atmosphere, organic composition in wiring board is by fast pyrogenation, the product generated comprises: organic gas, coke and tar, coke and water vapour, and its coal-tar middle oil and organic gas enters into tar gathering system (12) by reaction product escape pipe (14); Coke and steam pyrolysis generation water-gas gasification reaction generate hydrogen and carbonic acid gas; Poisonous halogenide on discarded circuit board is melted salt and absorbs and be converted into stable inorganic salt, collects use after the organic gas cooling of generation through gas gathering system (13).
7. the steam gasification separation method of abandoned printed circuit board according to claim 6, is characterized in that, described melting salt is the mixture of Quilonum Retard, salt of wormwood, sodium carbonate, and its mass ratio is 1:1:1.
8. the steam gasification separation method of abandoned printed circuit board according to claim 6, is characterized in that, described carrier gas is nitrogen or rare gas element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619847.8A CN104479756A (en) | 2014-11-05 | 2014-11-05 | Water-vapor gasification separation apparatus and method for waste printed circuit boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619847.8A CN104479756A (en) | 2014-11-05 | 2014-11-05 | Water-vapor gasification separation apparatus and method for waste printed circuit boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104479756A true CN104479756A (en) | 2015-04-01 |
Family
ID=52754368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410619847.8A Pending CN104479756A (en) | 2014-11-05 | 2014-11-05 | Water-vapor gasification separation apparatus and method for waste printed circuit boards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104479756A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567339A (en) * | 2015-12-09 | 2016-05-11 | 陕西科技大学 | Waste plastic molten salt cracking tower |
| CN105817461A (en) * | 2016-03-23 | 2016-08-03 | 中山大学 | High-added-value resource utilization device for waste circuit board electronic components |
| CN106190325A (en) * | 2016-08-29 | 2016-12-07 | 天津大学 | A kind of method utilizing Chinese medicine residue to produce fuel gas |
| US9850433B2 (en) | 2015-12-31 | 2017-12-26 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of E-waste materials |
| CN107755407A (en) * | 2017-08-09 | 2018-03-06 | 北京国电富通科技发展有限责任公司 | The harmless resource utilization device and its processing method of organic dangerous waste |
| US10640711B2 (en) | 2018-06-05 | 2020-05-05 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of treated wood waste sources |
| CN111171871A (en) * | 2020-03-04 | 2020-05-19 | 江西昌昱实业有限公司 | Process for preparing synthetic gas or fuel gas from waste circuit board resin |
| CN112457871A (en) * | 2020-10-28 | 2021-03-09 | 北京工业大学 | Method for preparing gasification formed coke by cracking coke from waste circuit board resin powder |
| CN112978765A (en) * | 2021-05-20 | 2021-06-18 | 中国恩菲工程技术有限公司 | Waste circuit board pyrolysis debromination purification device and method |
| CN113732023A (en) * | 2021-09-09 | 2021-12-03 | 河北雄安容西混凝土有限公司 | Treatment facility that bituminous concrete was useless admittedly |
| CN114904894A (en) * | 2022-06-07 | 2022-08-16 | 中国科学院广州能源研究所 | Organic solid waste treatment method and device based on molten salt |
| CN115156259A (en) * | 2022-07-07 | 2022-10-11 | 昆明理工大学 | Method for directionally removing bromine from waste circuit board by microwave pyrolysis in water vapor atmosphere |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002361199A (en) * | 2001-06-07 | 2002-12-17 | Bika Sangyo:Kk | Treatment apparatus for pcb-containing small-sized machinery |
| CN101905234A (en) * | 2010-07-23 | 2010-12-08 | 中国科学院广州能源研究所 | Method and device for comprehensively recycling waste printed circuit boards |
| CN101921915A (en) * | 2009-06-12 | 2010-12-22 | 巫协森 | Method and device for recycling substrates by thermally cracking wasted printed circuit boards |
| CN102389888A (en) * | 2011-05-12 | 2012-03-28 | 上海理工大学 | Molten salt gasification method for treating waste printed circuit board, and applied apparatus thereof |
| CN203316468U (en) * | 2013-07-02 | 2013-12-04 | 广州市澳博节能环保科技有限公司 | Device for separating metal and nonmetal of waste printed circuit board |
| CN203764635U (en) * | 2014-04-17 | 2014-08-13 | 大连理工大学 | Solid waste pyrogenic decomposition device by use of molten salt |
-
2014
- 2014-11-05 CN CN201410619847.8A patent/CN104479756A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002361199A (en) * | 2001-06-07 | 2002-12-17 | Bika Sangyo:Kk | Treatment apparatus for pcb-containing small-sized machinery |
| CN101921915A (en) * | 2009-06-12 | 2010-12-22 | 巫协森 | Method and device for recycling substrates by thermally cracking wasted printed circuit boards |
| CN101905234A (en) * | 2010-07-23 | 2010-12-08 | 中国科学院广州能源研究所 | Method and device for comprehensively recycling waste printed circuit boards |
| CN102389888A (en) * | 2011-05-12 | 2012-03-28 | 上海理工大学 | Molten salt gasification method for treating waste printed circuit board, and applied apparatus thereof |
| CN203316468U (en) * | 2013-07-02 | 2013-12-04 | 广州市澳博节能环保科技有限公司 | Device for separating metal and nonmetal of waste printed circuit board |
| CN203764635U (en) * | 2014-04-17 | 2014-08-13 | 大连理工大学 | Solid waste pyrogenic decomposition device by use of molten salt |
Non-Patent Citations (3)
| Title |
|---|
| SHAGNZHONG ZHANG等: "Steam gasification of epoxy circuit board in the presence of carbonates", 《J MATER CYCLES WASTE MANAG》 * |
| SHANGZHONG ZHANG等: "Kinetics of the steam gasification of a phenolic circuit board in the presence of carbonates", 《APPLIED ENERGY》 * |
| 李飞等: "废弃印刷线路板熔融盐气化特性研究", 《环境科学学报》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567339A (en) * | 2015-12-09 | 2016-05-11 | 陕西科技大学 | Waste plastic molten salt cracking tower |
| US9850433B2 (en) | 2015-12-31 | 2017-12-26 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of E-waste materials |
| US11814585B2 (en) | 2015-12-31 | 2023-11-14 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of e-waste materials |
| US11306255B2 (en) | 2015-12-31 | 2022-04-19 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of e-waste materials |
| US10961461B2 (en) | 2015-12-31 | 2021-03-30 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of e-waste materials |
| CN105817461A (en) * | 2016-03-23 | 2016-08-03 | 中山大学 | High-added-value resource utilization device for waste circuit board electronic components |
| CN105817461B (en) * | 2016-03-23 | 2019-01-25 | 中山大学 | A kind of device of waste and old circuit board electronic component high added value recycling |
| CN106190325A (en) * | 2016-08-29 | 2016-12-07 | 天津大学 | A kind of method utilizing Chinese medicine residue to produce fuel gas |
| CN107755407B (en) * | 2017-08-09 | 2020-06-16 | 北京国电富通科技发展有限责任公司 | Harmless recycling treatment device and method for organic hazardous wastes |
| CN107755407A (en) * | 2017-08-09 | 2018-03-06 | 北京国电富通科技发展有限责任公司 | The harmless resource utilization device and its processing method of organic dangerous waste |
| US10640711B2 (en) | 2018-06-05 | 2020-05-05 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of treated wood waste sources |
| CN111171871A (en) * | 2020-03-04 | 2020-05-19 | 江西昌昱实业有限公司 | Process for preparing synthetic gas or fuel gas from waste circuit board resin |
| CN111171871B (en) * | 2020-03-04 | 2021-05-18 | 梵境新能源科技(浙江)有限公司 | Process for preparing synthetic gas or fuel gas from waste circuit board resin |
| CN112457871A (en) * | 2020-10-28 | 2021-03-09 | 北京工业大学 | Method for preparing gasification formed coke by cracking coke from waste circuit board resin powder |
| CN112978765A (en) * | 2021-05-20 | 2021-06-18 | 中国恩菲工程技术有限公司 | Waste circuit board pyrolysis debromination purification device and method |
| CN113732023A (en) * | 2021-09-09 | 2021-12-03 | 河北雄安容西混凝土有限公司 | Treatment facility that bituminous concrete was useless admittedly |
| CN114904894A (en) * | 2022-06-07 | 2022-08-16 | 中国科学院广州能源研究所 | Organic solid waste treatment method and device based on molten salt |
| CN115156259A (en) * | 2022-07-07 | 2022-10-11 | 昆明理工大学 | Method for directionally removing bromine from waste circuit board by microwave pyrolysis in water vapor atmosphere |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104479756A (en) | Water-vapor gasification separation apparatus and method for waste printed circuit boards | |
| CN101905234B (en) | Method and device for comprehensively recycling waste printed circuit boards | |
| Liu et al. | Kinetic and mechanism studies on pyrolysis of printed circuit boards in the absence and presence of copper | |
| CN104624611B (en) | A kind of discarded appliance circuit plate energy method for innocent treatment | |
| TW201041668A (en) | Pyrolysis method of recycled substrate of printed circuit board and device thereof | |
| CN207787253U (en) | A kind of system of old circuit board Pyrolyzation and debromination processing | |
| CN107866437A (en) | A kind of processing method of discarded circuit board pyrolysis recovery | |
| CN104355519A (en) | Comprehensive sludge treating method based on hydrothermal carbonization and fast microwave pyrolysis | |
| CN102172600B (en) | Comprehensive recovery method for vacuum pyrolysis oil using wastes like waste circuit boards | |
| Liu et al. | Impact of the operating conditions on the derived products and the reaction mechanism in vacuum pyrolysis treatment of the organic material in waste integrated circuits | |
| CN107891053A (en) | A kind of method and system of old circuit board Pyrolyzation and debromination processing | |
| JP5874061B2 (en) | Method for recovering resources from used electrical and electronic equipment using water vapor gasification reaction in the presence of alkali salts | |
| CN204074682U (en) | A kind of old circuit board plasma treatment energy effect system | |
| CN203764635U (en) | Solid waste pyrogenic decomposition device by use of molten salt | |
| CN101797573B (en) | Environmental protection recycling method of deserted brominated flame retardant plastics | |
| CN113483339B (en) | Continuous electric heating furnace and method for recycling aluminum electrolysis carbon electrode waste | |
| CN102389888B (en) | Molten salt gasification method for treating waste printed circuit board, and applied apparatus thereof | |
| CN111014229B (en) | Pyrolysis recovery device utilizing waste heat of fuel cell and working method | |
| CN102061008A (en) | Method for reducing bromide content in pyrolysis gas of waste printed circuit board by high-temperature shock heating | |
| CN101357750A (en) | Method and device of microwave excitation molten salt catalytic reforming gasification carbon group compound | |
| CN104633675A (en) | Waste electric appliance circuit board energy regeneration innocent treatment system | |
| CN102408904A (en) | Process for treating tannery dimethylformamide (DMF) distillation residues through carbonization technology | |
| KR101902541B1 (en) | Method for recovering valuable metal from electronic scrap | |
| JP2010189700A (en) | Method and apparatus for pyrolyzing metal-mixed plastic waste and recovering metal | |
| CN204438143U (en) | Discarded appliance circuit plate energy innocuity disposal system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |