CN203678829U - Pyrolytic debromination device of waste printed circuit board - Google Patents
Pyrolytic debromination device of waste printed circuit board Download PDFInfo
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- 239000002699 waste material Substances 0.000 title claims abstract description 34
- 238000007256 debromination reaction Methods 0.000 title claims abstract description 18
- 238000000197 pyrolysis Methods 0.000 claims abstract description 67
- 238000003756 stirring Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000012265 solid product Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 8
- 239000012530 fluid Substances 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 16
- 230000003197 catalytic effect Effects 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005695 dehalogenation reaction Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002588 FeOOH Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 239000003054 catalyst Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 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
- Y02W30/62—Plastics recycling; Rubber recycling
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- 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]
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- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
本实用新型公开了一种废旧印刷线路板热解脱溴装置，包括热解炉体、吸附催化装置、螺旋冷凝装置、液体收集装置、水封装置、分离装置、尾气处理装置；所述的热解炉体的内部安装若干个搅拌棒，其上下壁分别安装原料进料口、热解固体产物出料口；热解的高温气体通过热解气出口进入吸附催化装置，经吸附催化后的气体进入螺旋冷凝装置冷却，冷凝液进入液体收集装置，不可冷凝气体进入水封装置后通过分离装置分离，最后进入尾气处理装置处理；本实用新型将废旧印刷线路板热解和脱溴二者有机结合，实现了废旧印刷线路板全组分回收目的。
The utility model discloses a pyrolysis debromination device for waste printed circuit boards, which comprises a pyrolysis furnace body, an adsorption catalytic device, a spiral condensation device, a liquid collection device, a water sealing device, a separation device, and a tail gas treatment device; A number of stirring rods are installed inside the furnace body, and the upper and lower walls are respectively equipped with a raw material inlet and a pyrolysis solid product outlet; the pyrolyzed high-temperature gas enters the adsorption catalytic device through the pyrolysis gas outlet, and the gas after adsorption and catalysis enters the The spiral condensing device is cooled, the condensate enters the liquid collection device, and the non-condensable gas enters the water seal device and is separated by the separation device, and finally enters the tail gas treatment device for treatment; the utility model organically combines pyrolysis and debromination of waste printed circuit boards, The purpose of recycling all components of waste printed circuit boards is realized.
Description
技术领域 technical field
本实用新型涉及一种废旧印刷线路板热解脱溴装置，主要适用于废旧印刷线路板的资源化利用。 The utility model relates to a thermal debromination device for waste printed circuit boards, which is mainly suitable for resource utilization of waste printed circuit boards.
背景技术 Background technique
废旧印刷线路板（WPCB）中的树脂多为热固性材料，不能采用一般的物理熔融再生技术回收处理，热解等热化学技术被认为是循环利用废旧印刷线路板最有效的技术，热解可以有效地回收废旧印刷线路板中金属、树脂和玻璃纤维等材料，但热解过程中溴化阻燃剂会分解产生许多含溴有机化合物。同时，随着国民经济的快速发展，石油消费量骤增，我国属于石油资源短缺的国家，为减少对进口石油的依赖，我国正在实施多元化能源战略，随着商用聚烯烃制油的成功商用，废旧印刷线路板的树脂成分制油具有良好的应用前景。 Most of the resins in waste printed circuit boards (WPCB) are thermosetting materials, which cannot be recycled by general physical melting regeneration technology. Thermochemical technologies such as pyrolysis are considered to be the most effective technology for recycling waste printed circuit boards. Pyrolysis can be effective Materials such as metals, resins and glass fibers in waste printed circuit boards can be efficiently recovered, but brominated flame retardants will decompose during the pyrolysis process to produce many bromine-containing organic compounds. At the same time, with the rapid development of the national economy, oil consumption has increased sharply. my country is a country short of oil resources. In order to reduce dependence on imported oil, my country is implementing a diversified energy strategy. With the successful commercialization of commercial polyolefin oil , the resin component oil of waste printed circuit boards has a good application prospect.
现有的废旧印刷线路板热解装置，均采用电阻加热的方法，能耗大。在热解过程中脱卤，都是将废印刷线路板和添加物混合热解，给热解渣资源回收利用带来极大的难度。由于废旧印刷线路板为热固性材料，导热性差，在混合过程中容易受热会不均匀，影响热解和脱卤效果，需增加搅拌装置。已有的研究均为实验室小试和中试阶段，能投入工业规模应用的装置鲜见报道。为此，开发一种可工业化的废旧印刷线路板热解脱溴装置可极大促进废线路板的资源化利用回收产业的发展。 Existing pyrolysis devices for waste printed circuit boards all adopt the method of resistance heating, which consumes a lot of energy. In the process of pyrolysis, the dehalogenation is to mix and pyrolyze waste printed circuit boards and additives, which brings great difficulty to the recycling of pyrolysis slag resources. Since the waste printed circuit board is a thermosetting material with poor thermal conductivity, it is easy to be heated unevenly during the mixing process, which will affect the effect of pyrolysis and dehalogenation, and a stirring device needs to be added. The existing researches are all in the stage of small laboratory test and pilot test, and there are few reports on devices that can be put into industrial scale application. For this reason, the development of an industrialized waste printed circuit board pyrolysis debromination device can greatly promote the development of the resource utilization and recycling industry of waste circuit boards.
发明内容 Contents of the invention
为弥补上述缺陷，本实用新型提出一种废旧印刷线路板热解脱溴装置，可以使废印刷线路板充分热解，高温气体经过吸附催化作用得到无溴净化热解油，为实现废旧印刷线路板热解后全组分综合利用提供技术基础。 In order to make up for the above defects, the utility model proposes a waste printed circuit board pyrolysis debromination device, which can fully pyrolyze the waste printed circuit board, and the high-temperature gas can obtain bromine-free purified pyrolysis oil through adsorption and catalysis. The comprehensive utilization of all components after pyrolysis provides a technical basis.
为了解决上述技术问题，本实用新型采用以下技术方案予以实现。 In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions to realize.
本实用新型提供的一种废旧印刷线路板热解脱溴装置， 包括热解炉体3、吸附催化装置9、螺旋冷凝装置11、液体收集装置12、水封装置13、分离装置14、尾气处理装置15；所述的热解炉体3的内部安装若干个搅拌棒6，其上下壁分别安装原料进料口7、热解固体产物出料口8；热解的高温气体通过热解气出口进入吸附催化装置9,经吸附催化后的气体进入螺旋冷凝装置11冷却，冷凝液进入液体收集装置12，不可冷凝气体进入水封装置13后通过分离装置14分离，最后进入尾气处理装置15处理尾气。
A waste printed circuit board pyrolysis debromination device provided by the utility model includes a pyrolysis furnace body 3, an adsorption catalytic device 9, a spiral condensation device 11, a liquid collection device 12, a water sealing device 13, a separation device 14, and an exhaust
所述的热解炉体3全密封，其内部安装的搅拌棒6连接搅拌轴4，搅拌轴4通过联轴器2与电机1连接。热解炉体3加热方式为电磁感应自动加热，采用内螺旋搅拌的动态型式，电机1带动搅拌棒6旋转，使热解时废旧印刷线路板受热均匀，热解温度在400℃～550℃，热解时间为1～2小时。 The pyrolysis furnace body 3 is fully sealed, and the stirring rod 6 installed inside it is connected to the stirring shaft 4, and the stirring shaft 4 is connected to the motor 1 through a coupling 2. The heating method of the pyrolysis furnace body 3 is electromagnetic induction automatic heating, which adopts the dynamic type of internal spiral stirring. The motor 1 drives the stirring rod 6 to rotate, so that the waste printed circuit boards are heated evenly during pyrolysis. The pyrolysis temperature is 400 ° C ~ 550 ° C. The pyrolysis time is 1-2 hours.
所述热解炉体3的顶部还安装进气口5。进气口5可通入N2，可以调控选择热解氛围；关闭进气口5可以保持真空状态，以水封装置13保证系统压力。 An air inlet 5 is also installed on the top of the pyrolysis furnace body 3 . The air inlet 5 can be fed with N 2 , and the pyrolysis atmosphere can be adjusted and selected; the vacuum state can be maintained by closing the air inlet 5, and the system pressure is guaranteed by the water seal device 13 .
所述吸附催化装置9的内部安装气体分布器10。保证热解气分布均匀。吸附催化物质为颗粒状形态，包括FeOOH，活性Al2O3颗粒，HZSM-5。
A
所述的热解炉体3和吸附催化装置9外表面均包裹保温层。 The outer surfaces of the pyrolysis furnace body 3 and the adsorption catalytic device 9 are all wrapped with an insulating layer.
所述的搅拌棒6安装的数量是五个，分别对称均匀分布安装在搅拌轴4上。 The number of the stirring rods 6 installed is five, which are symmetrically and evenly distributed and installed on the stirring shaft 4 respectively.
达到均匀搅拌的目的。 To achieve the purpose of uniform mixing.
本实用新型的有益效果是： The beneficial effects of the utility model are:
本实用新型将废旧印刷线路板热解和脱溴二者有机结合，通过卧式炉加热方式和吸附催化装置的合理设计，可同时处理吨级块状废旧印刷线路板，电磁感应自动加热系统的应用，节约能源，并使废旧印刷线路板热解均匀。单独的热解气催化脱溴方式，热解气充分反应，同时解决了热解渣的后续处理难题，实现了废旧印刷线路板全组分回收目的。 The utility model organically combines pyrolysis and debromination of waste printed circuit boards, and through the reasonable design of the horizontal furnace heating mode and the adsorption catalytic device, it can simultaneously process ton-level block waste printed circuit boards and the electromagnetic induction automatic heating system. application, save energy, and evenly pyrolyze waste printed circuit boards. The single pyrolysis gas catalytic debromination method, the pyrolysis gas fully reacts, and at the same time solves the problem of subsequent treatment of pyrolysis slag, and realizes the purpose of recycling all components of waste printed circuit boards. the
附图说明 Description of drawings
下面结合附图和具体实施方式对本实用新型的技术方案作进一步详细说明。 Below in conjunction with accompanying drawing and specific embodiment the technical scheme of the utility model is described in further detail.
图1为本实用新型实施例废旧印刷线路板热解脱溴装置的示意图。 Figure 1 is a schematic diagram of a waste printed circuit board pyrolysis debromination device according to an embodiment of the present invention.
其中：1、电机；2、联轴器；3、热解炉体；4、搅拌轴；5、进气口；6、搅拌棒；7、原料进料口；8、热解固体产物出料口；9、吸附催化装置；10、气体分布器；11、螺旋冷凝装置；12、液体收集装置；13、水封装置；14、分离装置；15、尾气处理装置。 Among them: 1. Motor; 2. Coupling; 3. Pyrolysis furnace body; 4. Stirring shaft; 5. Air inlet; 6. Stirring rod; 7. Raw material inlet; 8. Pyrolysis solid product discharge 9. Adsorption catalytic device; 10. Gas distributor; 11. Spiral condensation device; 12. Liquid collection device; 13. Water seal device; 14. Separation device; 15. Tail gas treatment device.
具体实施方式 Detailed ways
如附图1所示，本实用新型实施例废旧印刷线路板热解脱溴装置，包括密封金属材质的热解炉体3，热解炉体3的顶部设置有进气口5、原料进料口7和热解气出口，热解炉体3的底部设置有热解固体产物出料口8，搅拌轴4上装有5个搅拌棒6，使物料充分混合，受热均匀。搅拌轴4通过电机1带动实现360度转动。 As shown in Figure 1, the waste printed circuit board pyrolysis debromination device of the embodiment of the present utility model includes a pyrolysis furnace body 3 made of sealed metal, and the top of the pyrolysis furnace body 3 is provided with an air inlet 5 and a raw material feeding port 7 and the pyrolysis gas outlet, the bottom of the pyrolysis furnace body 3 is provided with a pyrolysis solid product discharge port 8, and the stirring shaft 4 is equipped with 5 stirring rods 6, so that the materials are fully mixed and heated evenly. The stirring shaft 4 is driven by the motor 1 to realize 360-degree rotation.
热解炉体3的外壁设置有保温层，有利于节能环保。热解炉体3的侧壁设置有测温口，可检测不同部位的温度。同时侧壁还设置有测定热解炉体3的内部压力的测压口，实时观测到温度和压力变化情况。 The outer wall of the pyrolysis furnace body 3 is provided with an insulating layer, which is conducive to energy saving and environmental protection. The side wall of the pyrolysis furnace body 3 is provided with a temperature measuring port, which can detect the temperature of different parts. At the same time, the side wall is also provided with a pressure measuring port for measuring the internal pressure of the pyrolysis furnace body 3, and the temperature and pressure changes can be observed in real time.
热解炉体3热解产生的热解气进入吸附催化装置9，通过气体分布器10，保证热解气分布均匀进入吸附催化层催化，气体分布器采用耐高温和抗腐蚀的材料制成。吸附层为活性Al2O3颗粒。
The pyrolysis gas produced by the pyrolysis of the pyrolysis furnace body 3 enters the adsorption catalytic device 9 and passes through the
经催化后的气体进入螺旋冷凝装置11，循环水水冷。冷凝液进入液体收集装置12，不可冷凝气体进入水封装置13和分离装置14，最后通过尾气处理装置15处理尾气排放。
The catalyzed gas enters the spiral condensing device 11 and is cooled by circulating water. The condensate enters the liquid collection device 12 , the non-condensable gas enters the water seal device 13 and the separation device 14 , and finally the exhaust gas is discharged through the tail
本实用新型实施例废旧印刷线路板热解脱溴装置的工作过程具体如下： The working process of the waste printed circuit board pyrolysis debromination device in the embodiment of the utility model is as follows:
块状的废旧印刷线路板通过原料进料口7进入热解炉体3，关闭进料口盖，开动电机1带动搅拌轴4旋转，N2通入进气口5，待10min后打开电磁感应加热开关，当温度上升到340℃后产生大量热解气，控制温度稳定在500℃。热解气进入保持温度在400℃的吸附催化装置9，通过气体分布器10均匀进入反应体系，反应后气体进入螺旋冷凝装置11冷凝，冷凝液热解油进入液体收集装置12收集，不可冷凝气体成分如CO、CO2、CH4等进入水封装置13和分离装置14，最后通过尾气处理装置15处理尾气排放或燃烧。
Blocky waste printed circuit boards enter the pyrolysis furnace body 3 through the raw material feed port 7, close the feed port cover, start the motor 1 to drive the stirring shaft 4 to rotate, N 2 passes into the air inlet 5, and turn on the electromagnetic induction after 10 minutes Heating switch, when the temperature rises to 340°C, a large amount of pyrolysis gas is generated, and the temperature is controlled to stabilize at 500°C. The pyrolysis gas enters the adsorption catalytic device 9 which keeps the temperature at 400°C, and enters the reaction system evenly through the
本实用新型废旧印刷线路板热解脱溴装置，原料可以为不经过破碎的大块的废旧印刷线路板，具有处理量大，结构简单，成本低，运行可靠等特点。吸附催化剂可以根据需要更换不同种类，简单方便。热解油产率可达30%，主要成分为苯酚，可用作提取化工原料。热解渣可容易物理分选得到铜等金属回收。 The utility model waste printed circuit board pyrolysis debromination device, the raw material can be a large piece of waste printed circuit board that has not been broken, and has the characteristics of large processing capacity, simple structure, low cost and reliable operation. The adsorption catalyst can be replaced with different types according to the needs, which is simple and convenient. The yield of pyrolysis oil can reach 30%, and the main component is phenol, which can be used to extract chemical raw materials. Pyrolysis slag can be easily physically sorted to recover metals such as copper.
本实用新型还有多种实施方式，但凡在本实用新型的精神和实质范围内，所作的任何改变、等同替换、改进，均在本实用新型的保护范围之内。 The utility model also has multiple implementation modes, but any changes, equivalent replacements, and improvements made within the spirit and essential scope of the utility model are within the protection scope of the utility model.
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| CN201420080674.2U Expired - Fee Related CN203678829U (en) | 2014-02-25 | 2014-02-25 | Pyrolytic debromination device of waste printed circuit board |
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| CN105091579A (en) * | 2015-08-31 | 2015-11-25 | 苏州富通高新材料科技股份有限公司 | Smelting device for plate processing |
| CN105149322A (en) * | 2015-09-23 | 2015-12-16 | 宁波恒创环保科技有限公司 | Separation method for glass fibre cloth and metal layer in printed circuit board |
| CN107243496A (en) * | 2017-06-15 | 2017-10-13 | 广东环境保护工程职业学院 | A kind of Al2O3And Fe3O4The method that composite catalyzing is pyrolyzed waste printed circuit board old metal powder |
| CN107282591A (en) * | 2017-06-15 | 2017-10-24 | 广东环境保护工程职业学院 | A kind of method of waste printed circuit board pyrolysis oil two-part catalysis pyrolysis debrominate simultaneously and lighting |
| CN107377587A (en) * | 2017-07-31 | 2017-11-24 | 安徽诺鑫自动化设备有限公司 | A kind of pyrolysis installation during chemical fixed-end forces |
| CN107377577A (en) * | 2017-06-15 | 2017-11-24 | 广东环境保护工程职业学院 | One kind is based on 5A and Fe3O4The waste printed circuit board catalysis method for pyrolysis of compound additive |
| US9850433B2 (en) | 2015-12-31 | 2017-12-26 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of E-waste materials |
| CN110776944A (en) * | 2019-11-05 | 2020-02-11 | 天津大学 | Movable bed type pyrolysis system for waste printed circuit boards subjected to secondary catalysis |
| CN111036646A (en) * | 2019-12-06 | 2020-04-21 | 中山大学 | A low-temperature pyrolysis debromination method for non-metallic components of waste circuit boards |
| US10640711B2 (en) | 2018-06-05 | 2020-05-05 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of treated wood waste sources |
| CN113560319A (en) * | 2021-07-21 | 2021-10-29 | 中南大学 | Solvent gasification pyrolysis device and method for waste circuit board |
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- 2014-02-25 CN CN201420080674.2U patent/CN203678829U/en not_active Expired - Fee Related
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| CN105091579A (en) * | 2015-08-31 | 2015-11-25 | 苏州富通高新材料科技股份有限公司 | Smelting device for plate processing |
| CN105149322A (en) * | 2015-09-23 | 2015-12-16 | 宁波恒创环保科技有限公司 | Separation method for glass fibre cloth and metal layer in printed circuit board |
| 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 |
| CN107282591A (en) * | 2017-06-15 | 2017-10-24 | 广东环境保护工程职业学院 | A kind of method of waste printed circuit board pyrolysis oil two-part catalysis pyrolysis debrominate simultaneously and lighting |
| CN107377577A (en) * | 2017-06-15 | 2017-11-24 | 广东环境保护工程职业学院 | One kind is based on 5A and Fe3O4The waste printed circuit board catalysis method for pyrolysis of compound additive |
| CN107282591B (en) * | 2017-06-15 | 2020-05-26 | 广东环境保护工程职业学院 | Method for simultaneously debrominating and lightening waste circuit board pyrolysis oil through two-stage catalytic pyrolysis |
| CN107243496A (en) * | 2017-06-15 | 2017-10-13 | 广东环境保护工程职业学院 | A kind of Al2O3And Fe3O4The method that composite catalyzing is pyrolyzed waste printed circuit board old metal powder |
| CN107377587A (en) * | 2017-07-31 | 2017-11-24 | 安徽诺鑫自动化设备有限公司 | A kind of pyrolysis installation during chemical fixed-end forces |
| US10640711B2 (en) | 2018-06-05 | 2020-05-05 | Chz Technologies, Llc | Multistage thermolysis method for safe and efficient conversion of treated wood waste sources |
| CN110776944A (en) * | 2019-11-05 | 2020-02-11 | 天津大学 | Movable bed type pyrolysis system for waste printed circuit boards subjected to secondary catalysis |
| CN111036646A (en) * | 2019-12-06 | 2020-04-21 | 中山大学 | A low-temperature pyrolysis debromination method for non-metallic components of waste circuit boards |
| CN113560319B (en) * | 2021-07-21 | 2022-04-29 | 中南大学 | A solvent gasification pyrolysis device and method for waste circuit boards |
| CN113560319A (en) * | 2021-07-21 | 2021-10-29 | 中南大学 | Solvent gasification pyrolysis device and method for waste circuit board |
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