CN103846273A - Method and system for treating circuit board - Google Patents
Method and system for treating circuit board Download PDFInfo
- Publication number
- CN103846273A CN103846273A CN201410092795.3A CN201410092795A CN103846273A CN 103846273 A CN103846273 A CN 103846273A CN 201410092795 A CN201410092795 A CN 201410092795A CN 103846273 A CN103846273 A CN 103846273A
- Authority
- CN
- China
- Prior art keywords
- pyrolysis
- gas
- radiant tube
- solid mixture
- revolving bed
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 137
- 238000000197 pyrolysis Methods 0.000 claims abstract description 168
- 239000007789 gas Substances 0.000 claims abstract description 127
- 230000004913 activation Effects 0.000 claims abstract description 52
- 239000008247 solid mixture Substances 0.000 claims abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000003546 flue gas Substances 0.000 claims abstract description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000003365 glass fiber Substances 0.000 claims abstract description 24
- 239000000446 fuel Substances 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims description 121
- 230000008569 process Effects 0.000 claims description 93
- 238000001816 cooling Methods 0.000 claims description 36
- 229910052799 carbon Inorganic materials 0.000 claims description 26
- 239000002296 pyrolytic carbon Substances 0.000 claims description 17
- 150000001722 carbon compounds Chemical class 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 230000003213 activating effect Effects 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 238000013467 fragmentation Methods 0.000 claims description 4
- 238000006062 fragmentation reaction Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 53
- 239000000047 product Substances 0.000 description 22
- 239000002994 raw material Substances 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 10
- 239000002699 waste material Substances 0.000 description 9
- 230000002378 acidificating effect Effects 0.000 description 7
- 239000012190 activator Substances 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 230000002939 deleterious effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 229910052736 halogen Inorganic materials 0.000 description 6
- 150000002367 halogens Chemical class 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000007158 vacuum pyrolysis Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010793 electronic waste Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
Images
Classifications
-
- 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
- Y02W30/20—Waste processing or separation
-
- 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 discloses a method and a system for treating a circuit board. The method comprises the following steps: (1) breaking the circuit board; (2) pyrolyzing the broken circuit board in a radiant tube revolving bed to obtain high-temperature oil gas and a solid mixture; (3) performing first separation on the high-temperature oil gas to respectively obtain pyrolysis oil and pyrolysis gas and supplying the pyrolysis gas to the radiant tube revolving bed to be used as fuel; (4) contacting flue gas with the obtained solid mixture to activate the solid mixture, thereby transforming the pyrolysis carbide in the solid mixture into activated carbon; (5) performing second separation on activation products so as to respectively obtain activated carbon, metal and inorganic glass fibers. According to the method disclosed by the embodiment of the invention, circuit board resources can be recovered and energy can be utilized to the maximum.
Description
Technical field
The invention belongs to chemical field, particularly, the present invention relates to a kind of method and system of process circuit plate.
Background technology
Along with scientific and technological high speed development, electronic product becomes the requisite daily necessities of people, is accompanied by the continuous quickening of electronic product update speed, and the leftover pieces that form in waste electronic refuse and electronic product machining process also grow with each passing day.Account for respectively 1%, 2～5% and 4% of municipal refuse in developed country as Japan, the U.S., European Union's electronic waste annual production, and with the speed increment of every 5 years 16%～28%, be 3～5 times of municipal refuse growth rate.This situation is particularly serious in China, China is not only populous, the main place that while or developed country dump electronic waste, data shows that the electronic waste of the U.S. 80% exports to Asia, wherein 90% enter China, as the important component part of electronic product, also increasing year by year of the generation of waste printed circuit board.
In waste printed circuit board containing 40% the metal of having an appointment, 30% macromolecular organic compound and 30% inorganic glass fiber.At present, mainly comprise mechanical separation method, hydrometallurgical technology, biological metallurgy technology and pyrolytic technique both at home and abroad about the technology of waste printed circuit board recycling, these technology major part except pyrolysis is all paid close attention to the metal reclaiming in waste printed circuit board.The wherein easy scale of mechanical separation method, and relatively little to the pollution of environment, but various metal cannot thoroughly separate, and residual organic substances or landfill or burning, not only waste resource but also environmental pollution is serious; The metal recovery rate of hydrometallurgy is high, but chemical reagent consumption is larger, complex process, and the macromolecular organic compound in wiring board is not recycled utilization equally; Biological metallurgy technology is at present also in conceptual phase, the considerably less and very difficult cultivation of applicable bacterium; Comparatively speaking, pyrolytic technique, by pyrolytic, can not only effectively be utilized macromolecule organic material wherein, be decomposed into fuel oil, combustion gas and carbide, more easily pyrolysis afterproduct is separated simultaneously, the metal in recovery train plate and glass fibre, recycling rate is high.
Pyrolysis waste printed circuit board mainly adopts the method for vacuum pyrolysis or microwave-heating at present; these two kinds of methods are mostly also in the laboratory research stage; and higher to equipment requirement; the nucleus equipment vacuum pyrolysis stove or the microwave-heating stove that adopt mostly at present are laboratory scale mini-plant; not only treating capacity is little; and many cannot continuous operation; if be applied to suitability for industrialized production; keep the interior vacuum state of stove or continue to produce microwave consuming mass energy, be therefore difficult to realize industrialization and large-scale production.That announces also concentrates on the recovery of metal in the refining and solid product of pyrolysis oil to the recoverying and utilizing method of product simultaneously mostly, and other product is not further utilized.
Therefore, the existing processing method to wiring board needs further to be studied.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.For this reason, one object of the present invention is to propose a kind of method of process circuit plate, and the method can realize the recycling resource of wiring board and the maximum using of the energy.
In one aspect of the invention, the present invention proposes a kind of method of process circuit plate, the method comprises:
(1) wiring board is carried out to break process;
(2) wiring board of process break process step (1) being obtained carries out pyrolysis processing in radiant tube revolving bed, to obtain respectively high-temperature oil gas and solid mixture, wherein, described solid mixture contains pyrolytic carbon compound, metal and inorganic glass fiber, described radiant tube revolving bed has burner, and described burner is the heat supply of described radiant tube revolving bed by combustion fuel and produces flue gas;
(3) described high-temperature oil gas step (2) being obtained is carried out the first separating treatment, to obtain respectively pyrolysis oil and pyrolysis gas, and the burner that described pyrolysis gas is supplied to described radiant tube revolving bed is as fuel;
(4) described flue gas is contacted with step (2) the described solid mixture that obtains, to described solid mixture is carried out to activation processing, to the pyrolytic carbon compound in described solid mixture is converted into active carbon; And
(5) activation processing product step (4) being obtained carries out the second separating treatment, to obtain respectively active carbon, metal and inorganic glass fiber.
Carry out pyrolysis processing according to the method for the process circuit plate of the embodiment of the present invention by employing radiant tube revolving bed, can realize the continuous processing of wiring board, and adopt radiant tube radiant heat transfer, the pyrolysis gas producing is separated completely with flue gas, and pyrolysis gas is used for the fuel of pyrolysis processing process, thereby can significantly reduce processing cost, the activation processing process for pyrolysis surplus solid mixture by produced flue gas simultaneously, not only can prepare high performance active carbon, be convenient to and the separating of metal and inorganic glass fiber simultaneously, thereby realize the maximum using of wiring board recycling resource and the energy.
In addition, the method for process circuit plate according to the above embodiment of the present invention can also have following additional technical characterictic:
In some embodiments of the invention, in step (1), it is 5～20 millimeters that wiring board is carried out to break process to granularity.Thus, can significantly improve the pyrolysis efficiency in the subsequent process of wiring board.
In some embodiments of the invention, in step (2), described pyrolysis processing is carried out under 500～850 degrees Celsius.Thus, can further improve the pyrolysis efficiency of wiring board.
In some embodiments of the invention, in step (3), described the first separating treatment further comprises: described high-temperature oil gas is carried out to cooling processing; And adopt alkaline matter to carry out purified treatment to pyrolysis gas.Thus, can separate and obtain the pyrolysis oil of high-quality and pure pyrolysis gas.
In some embodiments of the invention, described cooling processing is to carry out at not higher than the temperature of 78 degrees Celsius.Thus, can significantly improve the separative efficiency of pyrolysis oil and pyrolysis gas.
In some embodiments of the invention, described alkaline matter is selected from least one in NaOH, calcium oxide and calcium carbonate.Thus, can effectively remove the halogen-containing deleterious acidic gas that waits in pyrolysis gas, to can obtain pure pyrolysis gas.
In some embodiments of the invention, described activation processing is at the temperature of 800～950 degrees Celsius, to carry out 0.5～3 hour.Thus, can significantly improve the activation efficiency of solid mixture.
In some embodiments of the invention, in step (5), described the second separating treatment further comprises: obtained described activation processing product is carried out to fragmentation and separate with selection by winnowing.Thus, can realize the effective of active carbon, metal and inorganic glass fiber separates.
In another aspect of the present invention, the present invention proposes a kind of system of process circuit plate, this system comprises:
Breaker, described breaker is suitable for wiring board to carry out break process;
Radiant tube revolving bed, described radiant tube revolving bed is connected with described breaker, and be suitable for the wiring board through break process to carry out pyrolysis processing, to obtain respectively high-temperature oil gas and solid mixture, wherein, described solid mixture contains pyrolytic carbon compound, metal and inorganic glass fiber, and described radiant tube revolving bed has burner, and described burner is the heat supply of described radiant tube revolving bed by combustion fuel and produces flue gas;
The first separator, described the first separator is connected with described radiant tube revolving bed, and is suitable for described high-temperature oil gas to carry out the first separating treatment, to obtain respectively pyrolysis oil and pyrolysis gas;
Pyrolysis gas retracting device, described pyrolysis gas retracting device is connected with described radiant tube revolving bed with described the first separator respectively, and the burner that is suitable for collecting described pyrolysis gas and described pyrolysis gas is supplied to described radiant tube revolving bed is as fuel;
Activating apparatus, described activating apparatus is connected with described radiant tube revolving bed, and be suitable for described flue gas to contact with described solid mixture, to described solid mixture is carried out to activation processing, to the pyrolytic carbon compound in described solid mixture is converted into active carbon; And
The second separator, described the second separator is connected with described activating apparatus, and is suitable for obtained activation processing product to carry out the second separating treatment, to obtain respectively active carbon, metal and inorganic glass fiber.
Can effectively implement the method for above-mentioned process circuit plate according to the system of the process circuit plate of the embodiment of the present invention, by adopting radiant tube revolving bed to carry out pyrolysis processing, can realize the continuous processing of wiring board, and adopt radiant tube radiant heat transfer, the pyrolysis gas producing is separated completely with flue gas, and pyrolysis gas is used for the fuel of pyrolysis processing process, thereby can significantly reduce processing cost, the activation processing process for pyrolysis surplus solid mixture by produced flue gas simultaneously, not only can prepare high performance active carbon, be convenient to and the separating of metal and inorganic glass fiber simultaneously, thereby realize the maximum using of wiring board recycling resource and the energy.
In addition, the system of process circuit plate according to the above embodiment of the present invention can also have following additional technical characterictic:
In some embodiments of the invention, described the first separative element further comprises: cooling unit, and described cooling unit is suitable for described high-temperature oil gas to carry out cooling processing; And clean unit, described clean unit is connected with described cooling unit, and is suitable for adopting alkaline matter to carry out purified treatment to described pyrolysis gas.Thus, can separate and obtain the pyrolysis oil of high-quality and pure pyrolysis gas.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the schematic flow sheet of the method for process circuit plate according to an embodiment of the invention;
Fig. 2 is the schematic flow sheet of the method for the process circuit plate of another embodiment according to the present invention;
Fig. 3 is the structural representation of the system of process circuit plate according to an embodiment of the invention;
Fig. 4 is the structural representation of the system of the process circuit plate of another embodiment according to the present invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In this article, as without clearly stating, the term " pyrolytic carbon compound " using can be understood as in wiring board the carbon containing organic mixture that obtains after pyrolytic reaction of material that can pyrolysis.
In one aspect of the invention, the present invention proposes a kind of method of process circuit plate.The method of the process circuit plate below with reference to Fig. 1-2 to the embodiment of the present invention is described in detail.According to embodiments of the invention, the method comprises:
S100: break process
According to embodiments of the invention, wiring board is carried out to break process, thereby can obtain the wiring board particle through break process.According to embodiments of the invention, before wiring board is carried out to break process, first waste printed circuit board is dismantled to processing, remove electric capacity wherein, the electronic devices and components such as diode.According to embodiments of the invention, wiring board is carried out the method for break process and is not particularly limited, according to a particular embodiment of the invention, can adopt disintegrating machine to carry out break process to wiring board.According to embodiments of the invention, the granularity of the wiring board particle obtaining is also not particularly limited, and according to a particular embodiment of the invention, the granularity of wiring board particle can be 5～20 millimeters.Inventor finds, on the wiring board particle of this granularity can be laid at the bottom of the follow-up rotary hearth furnace that carries out pyrolysis processing uniformly, thereby can significantly improve the pyrolysis efficiency of subsequent process.
S200: pyrolysis processing
According to embodiments of the invention, the wiring board of above-mentioned obtained process break process is carried out to pyrolysis processing, thereby can obtain high-temperature oil gas and solid mixture, according to a particular embodiment of the invention, in solid mixture, can comprise pyrolytic carbon compound, metal and inorganic glass fiber.According to embodiments of the invention, the device of pyrolysis processing can adopt radiant tube revolving bed.According to embodiments of the invention, radiant tube revolving bed has the burner being arranged in radiant tube, and this burner is revolving bed heat supply by combustion fuel, produces flue gas simultaneously.It should be noted that, carrying out in pyrolysis processing process, this revolving bed adopts radiant tube radiation heating, and its furnace roof and furnace wall maintain static, and furnace bottom drives material rotation, thereby wiring board is carried out to pyrolysis processing.Inventor finds, adopts radiant tube revolving bed to carry out pyrolysis processing to wiring board, compared with adopting vacuum pyrolysis stove, can significantly reduce the requirement to equipment and process in the past, and can realize the continuous processing of material, thereby make it be easy to scale and industrialization.According to embodiments of the invention, the temperature of pyrolysis processing is also not particularly limited, and according to a particular embodiment of the invention, pyrolysis processing can be carried out at the temperature of 500～850 degrees Celsius.Inventor's discovery, the pyrolysis processing of carrying out in this temperature range can obviously be better than the pyrolysis efficiency of other temperature raising wiring board.In this step, the high-temperature oil gas of generation can be collected by the multiple oil and gas pipes in furnace roof setting.
S300: the first separating treatment
According to embodiments of the invention, the high-temperature oil gas of collecting in above-mentioned steps is carried out to the first separating treatment, thereby can obtain respectively pyrolysis oil and pyrolysis gas.Below with reference to Fig. 2, the first separating treatment step is described in detail, according to embodiments of the invention, the first separating treatment comprises:
S310: cooling processing
According to embodiments of the invention, the high-temperature oil gas of collection is carried out to cooling processing, thereby the liquid pyrolysis oil in gas mixture can be separated with the pyrolysis gas of gaseous state, wherein, pyrolysis oil can be used as fuel oil or chemical products and sells.According to embodiments of the invention, high-temperature oil gas is carried out the condition of cooling processing and is not particularly limited, according to a particular embodiment of the invention, cooling processing can be carried out at the temperature that is no more than 78 degrees Celsius.According to embodiments of the invention, the mode of cooling processing is also not particularly limited, according to a particular embodiment of the invention, can adopt the mode of direct-cooled and a cold combination to carry out cooling processing to high-temperature oil gas, wherein, direct-cooled cooling medium is recycle oil aqueous mixtures, and a cold cooling medium is recirculated water.Inventor's discovery, the cooling processing of carrying out under this condition can obviously be better than other temperature and improve the cooling effectiveness of high-temperature oil gas, thereby can significantly improve the separative efficiency of pyrolysis oil and pyrolysis gas.
S320: purified treatment
According to embodiments of the invention, contain the deleterious acidic gases such as halogen through in the pyrolysis gas of cooling processing, therefore this pyrolysis gas is carried out to purified treatment, to can obtain pure pyrolysis gas.According to embodiments of the invention, the concrete grammar of purified treatment is also not particularly limited, and according to a particular embodiment of the invention, can adopt alkaline matter to carry out purified treatment to pyrolysis gas.According to embodiments of the invention, the particular type of the alkaline matter of employing is also not particularly limited, and according to a particular embodiment of the invention, alkaline matter can be for being selected from least one in NaOH, calcium oxide and calcium carbonate.According to embodiments of the invention, the pure pyrolysis gas obtaining is collected in air accumulator, and the burner that this pyrolysis gas is supplied to radiant tube revolving bed is used as fuel, utilize radiant tube to carry out radiation heating to material simultaneously, the flue gas of pyrolysis gas burning generation and the pyrolysis gas of pyrolysis processing process generation are isolated completely.Thus, can separate and obtain all higher pyrolysis gas of purity and calorific value.According to embodiments of the invention, this pyrolysis gas can directly burn, and in the rear flue gas of burning, indices all meets discharge standard.Inventor's discovery, the fuel using this pyrolysis gas as revolving bed pyrolysis processing process uses, and can significantly improve efficiency of energy utilization, thereby can obviously cut down finished cost.
S400: activation processing
According to embodiments of the invention, the solid mixture that the produced flue gas that burns in the radiant tube in radiant tube revolving bed is obtained with pyrolysis processing contacts and carries out activation processing, thereby the pyrolytic carbon compound in solid mixture can be converted into active carbon.According to embodiments of the invention, the temperature of activation processing is also not particularly limited, and according to a particular embodiment of the invention, activation processing can be carried out 0.5～3 hour at the temperature of 800～950 degrees Celsius.According to embodiments of the invention, the temperature of the high-temperature flue gas after burning can be 550～870 degrees Celsius.According to embodiments of the invention, the temperature of the solid mixture obtaining through pyrolysis processing is 500～850 degrees Celsius, and directly contacts with flue gas and carry out activation processing without cooling processing.Thus, in activation processing process, do not need extra additional heat or only need supplement few heat, thereby can significantly reduce energy resource consumption in activation processing process.In this step, concrete, in flue gas after burning, be rich in carbon dioxide and steam, wherein, carbon dioxide can react with charcoal and generate carbon monoxide, steam can react with charcoal and generate carbon monoxide and hydrogen, these gases can play perforate, reaming and perforating action, flue gas after burning is used as activator, it is contacted with the solid mixture producing in pyrolysis processing process, can realize the pyrolytic carbon compound in solid mixture is converted into high performance active carbon, in activation processing process, can make pore structure prosperity without extra supplementing water steam simultaneously, the measured active carbon of matter.Inventor finds, activator by the flue gas producing after burning for solid mixture, not only can significantly reduce energy resource consumption in activation processing process, can also obviously reduce activator cost simultaneously, in addition, solid mixture is carried out to activation processing and not only can make high performance active carbon, and be convenient to separate metal and the inorganic glass fiber in follow-up solid mixture, thereby pyrolysis gas, pyrolysis oil, pyrolytic carbon that pyrolysis is produced have all obtained utilization, and then significantly improve energy utilization rate and the resource level of wiring board pyrolysis.
S500: the second separating treatment
According to embodiments of the invention, above-mentioned steps gained activation processing product is carried out to the second separating treatment, thereby can obtain respectively active carbon, metal and inorganic glass fiber.According to embodiments of the invention, activation products are carried out the mode of the second separating treatment and are not particularly limited, according to a particular embodiment of the invention, can carry out fragmentation to obtained activation products and separate with selection by winnowing.
As mentioned above, can have and be selected from following advantage one of at least according to the method for the process circuit plate of the embodiment of the present invention:
According to adopting radiant tube revolving bed as circuit board pyrolytic device in the method for the process circuit plate of the embodiment of the present invention, can realize the continuous processing of material, be easy to realize scale and industrialization;
By pyrolysis solid mixture is further activated, not only can obtain the active carbon that absorption property is good according to the method for the process circuit plate of the embodiment of the present invention, and be conducive to separate metal, inorganic glass fiber wherein;
Utilize radiant tube to carry out radiant heat transfer to material according to the method for the process circuit plate of the embodiment of the present invention, flue gas and the pyrolysis gas of generation are isolated completely, make that pyrolysis gas quality is pure, calorific value is high, are convenient to recycle;
Adopt alkaline matter to purify pyrolysis gas according to the method for the process circuit plate of the embodiment of the present invention, absorb especially bromine-containing gas of deleterious acidic gas wherein, and the combustible gas after purifying is supplied to radiant tube burning, the flue gas of burning gained is rich in steam and carbon dioxide, can directly reclaim for activation processing;
Vent one's spleen as pyrolysis processing energy is provided take the combustion heat according to the method for the process circuit plate of the embodiment of the present invention, can significantly improve efficiency of energy utilization, after burning, flue gas is for activation processing simultaneously, the not only effective heat in recovered flue gas, additionally provide the investment of activator but also reduced, thereby improved economy and the resource level of technique;
According to the whole technique of the method for the process circuit plate of the embodiment of the present invention by wiring board by pyrolysis and product separation activation processing, and provide the energy by pyrolysis gas burning for system, final production pyrolysis oil, active carbon, metal and glass fibre, realized the resource of wiring board and the maximum using of the energy.
In another aspect of the present invention, the present invention proposes a kind of system of process circuit plate.System below with reference to the process circuit plate of Fig. 3-4 pair embodiment of the present invention is described in detail.According to embodiments of the invention, this system comprises:
Breaker 100: according to embodiments of the invention, breaker 100 is suitable for wiring board to carry out break process, thereby can obtain the wiring board particle through break process.According to embodiments of the invention, before wiring board is carried out to break process, first waste printed circuit board is dismantled to processing, remove electric capacity wherein, the electronic devices and components such as diode.According to embodiments of the invention, wiring board is carried out the method for break process and is not particularly limited, according to a particular embodiment of the invention, can adopt disintegrating machine to carry out break process to wiring board.According to embodiments of the invention, the granularity of the wiring board particle obtaining is also not particularly limited, and according to a particular embodiment of the invention, the granularity of wiring board particle can be 5～20 millimeters.Inventor finds, on the wiring board particle of this granularity can be laid at the bottom of the follow-up rotary hearth furnace that carries out pyrolysis processing uniformly, thereby can significantly improve the pyrolysis efficiency of subsequent process.
Radiant tube revolving bed 200: according to embodiments of the invention, radiant tube revolving bed 200 is connected with breaker 100, and be suitable for the wiring board through break process to carry out pyrolysis processing, thereby can obtain high-temperature oil gas and solid mixture, according to a particular embodiment of the invention, in solid mixture, can comprise pyrolytic carbon compound, metal and inorganic glass fiber.According to embodiments of the invention, radiant tube revolving bed has the burner being arranged in radiant tube, and this burner is revolving bed heat supply by combustion fuel, produces flue gas simultaneously.It should be noted that, carrying out in pyrolysis processing process, this revolving bed adopts radiant tube radiation heating, and its furnace roof and furnace wall maintain static, and furnace bottom drives material rotation, thereby wiring board is carried out to pyrolysis processing.Inventor finds, adopts radiant tube revolving bed to carry out pyrolysis processing to wiring board, compared with adopting vacuum pyrolysis stove, can significantly reduce the requirement to equipment and process in the past, and can realize the continuous processing of material, thereby make it be easy to scale and industrialization.According to embodiments of the invention, the temperature of pyrolysis processing is also not particularly limited, and according to a particular embodiment of the invention, pyrolysis processing can be carried out at the temperature of 500～850 degrees Celsius.Inventor's discovery, the pyrolysis processing of carrying out in this temperature range can obviously be better than the pyrolysis efficiency of other temperature raising wiring board.In this step, the high-temperature oil gas of generation can be collected by the multiple oil and gas pipes in furnace roof setting.
The first separator 300: according to embodiments of the invention, the first separator 300 is connected with radiant tube revolving bed 200, and is suitable for described high-temperature oil gas to carry out the first separating treatment, thereby can obtain respectively pyrolysis oil and pyrolysis gas.Below with reference to Fig. 4, the first separator 300 is described in detail, according to embodiments of the invention, the first separator comprises:
Cooling unit 310: according to embodiments of the invention, cooling unit 310 is suitable for high-temperature oil gas to carry out cooling processing, thereby the liquid pyrolysis oil in gas mixture can be separated with the pyrolysis gas of gaseous state, wherein, pyrolysis oil can be used as fuel oil or chemical products and sells.According to embodiments of the invention, high-temperature oil gas is carried out the condition of cooling processing and is not particularly limited, according to a particular embodiment of the invention, cooling processing can be carried out at the temperature that is no more than 78 degrees Celsius.According to embodiments of the invention, the mode of cooling processing is also not particularly limited, according to a particular embodiment of the invention, can adopt the mode of direct-cooled and a cold combination to carry out cooling processing to high-temperature oil gas, wherein, direct-cooled cooling medium is recycle oil aqueous mixtures, and a cold cooling medium is recirculated water.Inventor's discovery, the cooling processing of carrying out under this condition can obviously be better than other temperature and improve the cooling effectiveness of high-temperature oil gas, thereby can significantly improve the separative efficiency of pyrolysis oil and pyrolysis gas.
Clean unit 320: according to embodiments of the invention, clean unit 320 is connected with cooling unit 310.According to embodiments of the invention, contain the deleterious acidic gases such as halogen through in the pyrolysis gas of cooling processing, therefore this pyrolysis gas is carried out to purified treatment, to can obtain pure pyrolysis gas.According to embodiments of the invention, the concrete grammar of purified treatment is also not particularly limited, and according to a particular embodiment of the invention, can adopt alkaline matter to carry out purified treatment to pyrolysis gas.According to embodiments of the invention, the particular type of the alkaline matter of employing is also not particularly limited, and according to a particular embodiment of the invention, alkaline matter can be for being selected from least one in NaOH, calcium oxide and calcium carbonate.Inventor finds, such alkaline matter can be better than other cleanser to be removed and in pyrolysis gas, contain the deleterious acidic gases such as halogen, thereby can the higher pyrolysis gas of purity.
Pyrolysis gas retracting device 400: according to embodiments of the invention, pyrolysis gas retracting device 400 is connected with radiant tube revolving bed 200 with the first separator 300 respectively, and the burner that is suitable for collecting pyrolysis gas and is supplied to radiant tube revolving bed uses as fuel, utilize radiant tube to carry out radiation heating to material simultaneously, the flue gas of pyrolysis gas burning generation and the pyrolysis gas of pyrolysis processing process generation are isolated completely.Thus, can separate and obtain all higher pyrolysis gas of purity and calorific value.According to embodiments of the invention, this pyrolysis gas can directly burn, and in the rear flue gas of burning, indices all meets discharge standard.Inventor's discovery, the fuel using this pyrolysis gas as revolving bed pyrolysis processing process uses, and can significantly improve efficiency of energy utilization, thereby can obviously cut down finished cost.
Activating apparatus 500: according to embodiments of the invention, activating apparatus 500 is connected with radiant tube revolving bed 200, and the solid mixture that is suitable for that the produced flue gas that burns in the radiant tube in radiant tube revolving bed is obtained with pyrolysis processing contacts and carries out activation processing, thereby the pyrolytic carbon compound in solid mixture can be converted into active carbon.According to embodiments of the invention, the temperature of activation processing is also not particularly limited, and according to a particular embodiment of the invention, activation processing can be carried out 0.5～3 hour at the temperature of 800～950 degrees Celsius.According to embodiments of the invention, the temperature of the high-temperature flue gas after burning can be 550～870 degrees Celsius.According to embodiments of the invention, the temperature of the solid mixture obtaining through pyrolysis processing is 500～850 degrees Celsius, and directly contacts with flue gas and carry out activation processing without cooling processing.Thus, in activation processing process, do not need extra additional heat or only need supplement few heat, thereby can significantly reduce energy resource consumption in activation processing process.In this step, concrete, in flue gas after burning, be rich in carbon dioxide and steam, wherein, carbon dioxide can react with charcoal and generate carbon monoxide, steam can react with charcoal and generate carbon monoxide and hydrogen, these gases can play perforate, reaming and perforating action, flue gas after burning is used as activator, it is contacted with the solid mixture producing in pyrolysis processing process, can realize the pyrolytic carbon compound in solid mixture is converted into high performance active carbon, in activation processing process, can make pore structure prosperity without extra supplementing water steam simultaneously, the measured active carbon of matter.Inventor finds, activator by the flue gas producing after burning for solid mixture, not only can significantly reduce energy resource consumption in activation processing process, can also obviously reduce activator cost simultaneously, in addition, solid mixture is carried out to activation processing and not only can make high performance active carbon, and be convenient to separate metal and the inorganic glass fiber in follow-up solid mixture, thereby pyrolysis gas, pyrolysis oil, pyrolytic carbon that pyrolysis is produced have all obtained utilization, and then significantly improve energy utilization rate and the resource level of wiring board pyrolysis.
The second separator 600: according to embodiments of the invention, the second separator 600 is connected with activating apparatus 500, and be suitable for obtained activation processing product to carry out the second separating treatment, thereby active carbon, metal and inorganic glass fiber can be obtained respectively.According to embodiments of the invention, activation products are carried out the mode of the second separating treatment and are not particularly limited, according to a particular embodiment of the invention, can carry out fragmentation to obtained activation products and separate with selection by winnowing.
Below with reference to specific embodiment, present invention is described, it should be noted that, these embodiment are only descriptive, and do not limit the present invention in any way.
Embodiment 1
Adopting through the old circuit board of dismounting electric elements is raw material, is placed in disintegrating machine and carries out break process, and being crushed to particle diameter is 5-20mm, to evenly feed in radiant tube revolving bed pyrolysis oven and carry out pyrolysis processing through the wiring board raw material of break process, in rotary course, material is heated to 530 ℃ gradually, and setting the time rotating a circle is 2.5h, after pyrolytic reaction is complete, obtain high-temperature oil gas and solid mixture (accounting for the 64wt% of raw material), wherein, high-temperature oil gas is collected by the multiple oil and gas pipes that arrange at pyrolysis oven furnace roof, and the high-temperature oil gas of collection is carried out to cooling processing, obtain pyrolysis oil (accounting for the 20wt% of raw material) and pyrolysis gas (accounting for the 16wt% of raw material), and employing alkaline matter absorbs the deleterious acidic gases such as the halogen in pyrolysis gas, obtain pure pyrolysis gas, this pyrolysis gas can directly burn, after burning, in flue gas, indices all meets discharge standard, the pyrolysis oil obtaining is sold as fuel oil or chemical products after collecting, pyrolysis gas through purified treatment is collected in air accumulator, be connected with radiant tube burner by press device, provide heat at radiation combustion inner pipe for pyrolysis processing process, ignition temperature is 620 ℃, high-temperature flue gas after burning is rich in carbon dioxide and steam, and flue-gas temperature is 580 ℃, the high-temperature flue gas of gained after burning is contacted and carries out activation processing with the solid mixture that pyrolysis processing process produces, and activation temperature is 800 ℃, and the activation time of staying is 2.5h, finally activation processing product is carried out to separating treatment, obtain active carbon (accounting for the 15wt% of raw material), metal (accounting for the 36wt% of raw material) and inorganic glass fiber (accounting for the 13wt% of raw material).
Embodiment 2
Adopting through the old circuit board of dismounting electric elements is raw material, is placed in disintegrating machine and carries out break process, and being crushed to particle diameter is 5-20mm, to evenly feed in radiant tube revolving bed pyrolysis oven and carry out pyrolysis processing through the wiring board raw material of break process, in rotary course, material is heated to 770 ℃ gradually, and setting the time rotating a circle is 1.5h, after pyrolytic reaction is complete, obtain high-temperature oil gas and solid mixture (accounting for the 60wt% of raw material), wherein, high-temperature oil gas is collected by the multiple oil and gas pipes that arrange at pyrolysis oven furnace roof, and the high-temperature oil gas of collection is carried out to cooling processing, obtain pyrolysis oil (accounting for the 17wt% of raw material) and pyrolysis gas (accounting for the 23wt% of raw material), and employing alkaline matter absorbs the deleterious acidic gases such as the halogen in pyrolysis gas, obtain pure pyrolysis gas, this pyrolysis gas can directly burn, after burning, in flue gas, indices all meets discharge standard, the pyrolysis oil obtaining is sold as fuel oil or chemical products after collecting, pyrolysis gas through purified treatment is collected in air accumulator, be connected with radiant tube burner by press device, provide heat at radiation combustion inner pipe for pyrolysis processing process, ignition temperature is 850 ℃, high-temperature flue gas after burning is rich in carbon dioxide and steam, and flue-gas temperature is 780 ℃, the high-temperature flue gas of gained after burning is contacted and carries out activation processing with the solid mixture that pyrolysis processing process produces, and activation temperature is 900 ℃, and the activation time of staying is 1.5h, finally activation processing product is carried out to separating treatment, obtain active carbon (accounting for the 20wt% of raw material), metal (accounting for the 30wt% of raw material) and inorganic glass fiber (accounting for the 10wt% of raw material).
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, modification, replacement and modification.
Claims (10)
1. a method for process circuit plate, is characterized in that, comprising:
(1) wiring board is carried out to break process;
(2) wiring board of process break process step (1) being obtained carries out pyrolysis processing in radiant tube revolving bed, to obtain respectively high-temperature oil gas and solid mixture, wherein, described solid mixture contains pyrolytic carbon compound, metal and inorganic glass fiber, described radiant tube revolving bed has burner, and described burner is the heat supply of described radiant tube revolving bed by combustion fuel and produces flue gas;
(3) described high-temperature oil gas step (2) being obtained is carried out the first separating treatment, to obtain respectively pyrolysis oil and pyrolysis gas, and the burner that described pyrolysis gas is supplied to described radiant tube revolving bed is as fuel;
(4) described flue gas is contacted with step (2) the described solid mixture that obtains, to described solid mixture is carried out to activation processing, to the pyrolytic carbon compound in described solid mixture is converted into active carbon; And
(5) activation processing product step (4) being obtained carries out the second separating treatment, to obtain respectively active carbon, metal and inorganic glass fiber.
2. the method for process circuit plate according to claim 1, is characterized in that, in step (1), it is 5～20 millimeters that wiring board is carried out to break process to granularity.
3. the method for process circuit plate according to claim 1, is characterized in that, in step (2), described pyrolysis processing is carried out under 500～850 degrees Celsius.
4. the method for process circuit plate according to claim 1, is characterized in that, in step (3), described the first separating treatment further comprises:
Described high-temperature oil gas is carried out to cooling processing; And
Adopt alkaline matter to carry out purified treatment to pyrolysis gas.
5. the method for process circuit plate according to claim 4, is characterized in that, described cooling processing is to carry out at not higher than the temperature of 78 degrees Celsius.
6. the method for process circuit plate according to claim 4, is characterized in that, described alkaline matter is selected from least one in NaOH, calcium oxide and calcium carbonate.
7. the method for process circuit plate according to claim 1, is characterized in that, described activation processing is at the temperature of 800～950 degrees Celsius, to carry out 0.5～3 hour.
8. the method for process circuit plate according to claim 1, is characterized in that, in step (5), described the second separating treatment further comprises: obtained described activation processing product is carried out to fragmentation and separate with selection by winnowing.
9. a system for process circuit plate, is characterized in that, comprising:
Breaker, described breaker is suitable for wiring board to carry out break process;
Radiant tube revolving bed, described radiant tube revolving bed is connected with described breaker, and be suitable for the wiring board through break process to carry out pyrolysis processing, to obtain respectively high-temperature oil gas and solid mixture, wherein, described solid mixture contains pyrolytic carbon compound, metal and inorganic glass fiber, and described radiant tube revolving bed has burner, and described burner is the heat supply of described radiant tube revolving bed by combustion fuel and produces flue gas;
The first separator, described the first separator is connected with described radiant tube revolving bed, and is suitable for described high-temperature oil gas to carry out the first separating treatment, to obtain respectively pyrolysis oil and pyrolysis gas;
Pyrolysis gas retracting device, described pyrolysis gas retracting device is connected with described radiant tube revolving bed with described the first separator respectively, and the burner that is suitable for collecting described pyrolysis gas and described pyrolysis gas is supplied to described radiant tube revolving bed is as fuel;
Activating apparatus, described activating apparatus is connected with described radiant tube revolving bed, and be suitable for described flue gas to contact with described solid mixture, to described solid mixture is carried out to activation processing, to the pyrolytic carbon compound in described solid mixture is converted into active carbon; And
The second separator, described the second separator is connected with described activating apparatus, and is suitable for obtained activation processing product to carry out the second separating treatment, to obtain respectively active carbon, metal and inorganic glass fiber.
10. the system of process circuit plate according to claim 9, is characterized in that, described the first separator further comprises:
Cooling unit, described cooling unit is suitable for described high-temperature oil gas to carry out cooling processing; And
Clean unit, described clean unit is connected with described cooling unit, and is suitable for adopting alkaline matter to carry out purified treatment to pyrolysis gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092795.3A CN103846273B (en) | 2014-03-13 | 2014-03-13 | The method and system of process circuit plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092795.3A CN103846273B (en) | 2014-03-13 | 2014-03-13 | The method and system of process circuit plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103846273A true CN103846273A (en) | 2014-06-11 |
| CN103846273B CN103846273B (en) | 2016-08-17 |
Family
ID=50854659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410092795.3A Active CN103846273B (en) | 2014-03-13 | 2014-03-13 | The method and system of process circuit plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103846273B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787762A (en) * | 2015-04-20 | 2015-07-22 | 北京神雾环境能源科技集团股份有限公司 | Method and system for producing activated carbon through pyrolysis of water-bearing organic matter |
| CN106185938A (en) * | 2016-08-29 | 2016-12-07 | 北京神雾环境能源科技集团股份有限公司 | The system and method that a kind of Waste ammunition processes |
| CN106276904A (en) * | 2016-08-29 | 2017-01-04 | 北京神雾环境能源科技集团股份有限公司 | The system and method that a kind of Waste ammunition processes |
| CN106623340A (en) * | 2015-10-28 | 2017-05-10 | 荆门市格林美新材料有限公司 | A cracking process and device for waste circuit boards |
| CN106698421A (en) * | 2016-12-08 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | System and method for preparing activated carbon by energy cyclic utilization of waste tires |
| US9850433B2 (en) | 2015-12-31 | 2017-12-26 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of E-waste materials |
| CN108213061A (en) * | 2018-03-21 | 2018-06-29 | 天津大学 | A kind of vertical waste printed circuit board moving bed pyrolysis system |
| US10640711B2 (en) | 2018-06-05 | 2020-05-05 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of treated wood waste sources |
| CN112246823A (en) * | 2020-09-08 | 2021-01-22 | 新奥生物质能(天津)有限公司 | High ash pyrolytic carbon utilization method and system |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003181434A (en) * | 2001-12-18 | 2003-07-02 | Denso Corp | Method for recycling printed circuit board |
| CN1899712A (en) * | 2005-07-18 | 2007-01-24 | 中国矿业大学(北京) | Method for recovering waste printed circuit board resource |
| CN1927480A (en) * | 2006-09-16 | 2007-03-14 | 大连理工大学 | Electronic refuse treatment method |
| CN101767104A (en) * | 2009-12-21 | 2010-07-07 | 大连理工大学 | Pyrolysis based resource reclaiming process of waste circuit board |
| CN102716896A (en) * | 2012-06-14 | 2012-10-10 | 中国科学院生态环境研究中心 | Method for recycling copper foils and glass fibers in discarded circuit board by means of hydro-thermal treatment |
-
2014
- 2014-03-13 CN CN201410092795.3A patent/CN103846273B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003181434A (en) * | 2001-12-18 | 2003-07-02 | Denso Corp | Method for recycling printed circuit board |
| CN1899712A (en) * | 2005-07-18 | 2007-01-24 | 中国矿业大学(北京) | Method for recovering waste printed circuit board resource |
| CN1927480A (en) * | 2006-09-16 | 2007-03-14 | 大连理工大学 | Electronic refuse treatment method |
| CN101767104A (en) * | 2009-12-21 | 2010-07-07 | 大连理工大学 | Pyrolysis based resource reclaiming process of waste circuit board |
| CN102716896A (en) * | 2012-06-14 | 2012-10-10 | 中国科学院生态环境研究中心 | Method for recycling copper foils and glass fibers in discarded circuit board by means of hydro-thermal treatment |
Non-Patent Citations (1)
| Title |
|---|
| 易牡丹: "废旧电路板真空裂解炭制备活性炭的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》, 15 February 2013 (2013-02-15) * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787762A (en) * | 2015-04-20 | 2015-07-22 | 北京神雾环境能源科技集团股份有限公司 | Method and system for producing activated carbon through pyrolysis of water-bearing organic matter |
| CN104787762B (en) * | 2015-04-20 | 2017-11-24 | 北京神源环保有限公司 | The method and system of water-bearing organic pyrolysis production activated carbon |
| CN106623340A (en) * | 2015-10-28 | 2017-05-10 | 荆门市格林美新材料有限公司 | A cracking process and device for waste circuit boards |
| US9850433B2 (en) | 2015-12-31 | 2017-12-26 | 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 |
| US11306255B2 (en) | 2015-12-31 | 2022-04-19 | 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 |
| CN106276904A (en) * | 2016-08-29 | 2017-01-04 | 北京神雾环境能源科技集团股份有限公司 | The system and method that a kind of Waste ammunition processes |
| CN106185938A (en) * | 2016-08-29 | 2016-12-07 | 北京神雾环境能源科技集团股份有限公司 | The system and method that a kind of Waste ammunition processes |
| CN106185938B (en) * | 2016-08-29 | 2019-02-26 | 神雾科技集团股份有限公司 | A kind of system and method for Waste ammunition processing |
| CN106698421A (en) * | 2016-12-08 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | System and method for preparing activated carbon by energy cyclic utilization of waste tires |
| CN108213061A (en) * | 2018-03-21 | 2018-06-29 | 天津大学 | A kind of vertical waste printed circuit board moving bed pyrolysis system |
| US10640711B2 (en) | 2018-06-05 | 2020-05-05 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of treated wood waste sources |
| CN112246823A (en) * | 2020-09-08 | 2021-01-22 | 新奥生物质能(天津)有限公司 | High ash pyrolytic carbon utilization method and system |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103846273B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103846273A (en) | Method and system for treating circuit board | |
| CN203778473U (en) | Treatment system for circuit board | |
| CN103831287B (en) | The method of process circuit plate | |
| CN106185938B (en) | A kind of system and method for Waste ammunition processing | |
| CN105329892B (en) | Method for producing capacitive carbon from rice husks | |
| CN104787762A (en) | Method and system for producing activated carbon through pyrolysis of water-bearing organic matter | |
| Liu et al. | Characterization and analysis of sludge char prepared from bench-scale fluidized bed pyrolysis of sewage sludge | |
| CN104087340A (en) | Waste pyrolysis system with adjustable oil, gas and carbon and method | |
| CN104624611B (en) | A kind of discarded appliance circuit plate energy method for innocent treatment | |
| CN106500107A (en) | A kind of system and method for refuse pyrolysis gasification and melting | |
| CN105665423A (en) | System and method for disposing household waste | |
| CN104560072A (en) | Pyrolysis system and pyrolysis method for organic wastes | |
| CN103723728A (en) | Activated carbon and method for preparing activated carbon from coal-directly liquefied residue | |
| CN106734067A (en) | A kind of full resource cleaning and reclaiming method of the useless circuit board of low-carbon high-efficiency | |
| CN107435928A (en) | A kind of internal heat type domestic garbage pyrolysis system | |
| CN104629779A (en) | Process for producing synthetic gas from urban garbage by virtue of combination of pyrolysis and plasma | |
| CN104059681B (en) | A kind of regenerative gas radiator tube rotating bed oil shale distillation and shale slag utilize technique | |
| CN103672907A (en) | Garbage treatment system and method | |
| CN104109560B (en) | Method for preparing industrial fuel gas through pyrolysis treatment of garbage | |
| CN109355071A (en) | City house refuse treatment method and processing system | |
| CN104560100A (en) | Waste tire pyrolysis system and pyrolysis method | |
| CN101712458A (en) | Method for producing hydrogen by utilizing rubbish high-temperature cracking | |
| CN204281524U (en) | Sludge treating system | |
| CN209456367U (en) | System for treating municipal solid waste | |
| CN204803012U (en) | System for moisture organic matter pyrolysis production active carbon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20160817 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20160817 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220921 Granted publication date: 20160817 |
|
| PP01 | Preservation of patent right |