CN206689178U - A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating - Google Patents
A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating Download PDFInfo
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- CN206689178U CN206689178U CN201720179697.2U CN201720179697U CN206689178U CN 206689178 U CN206689178 U CN 206689178U CN 201720179697 U CN201720179697 U CN 201720179697U CN 206689178 U CN206689178 U CN 206689178U
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- pyrolysis
- gas
- burner hearth
- oven burner
- pyrolysis oven
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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)
Abstract
The utility model discloses a kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating, including pyrolysis oven, multi-hole orifice is installed in the horizontal direction in pyrolysis oven burner hearth inner bottom part, control cabinet side thermocouple and auxiliary heater are respectively arranged with the pyrolysis oven burner hearth of multi-hole orifice bottom, shaft above multi-hole orifice is provided with multiple mounting holes for leading to pyrolysis oven burner hearth, pyrolysis furnace electric thermo-couple is installed in each mounting hole, the pyrolysis gas escape pipe connected with pyrolysis oven burner hearth is provided with bell, the outlet of described pyrolysis gas escape pipe is connected with pyrolysis gas condensation collection system, the bottom of pyrolysis oven burner hearth is connected with the pipeline in heater and from supercharging nitrogen pot successively by high temperature nitrogen air inlet pipe.Pyrolysis efficiency can be improved using the present apparatus and reduce the pollution to environment.
Description
Technical field
Fixed-bed pyrolysis system is the utility model is related to, more particularly to a kind of old circuit board of high-temperature gas seepage flow heating
Fixed-bed pyrolysis system.
Background technology
With enormous amount WPCBs generation, except the gold, silver, the valuable metal and glass fibre etc. such as copper that wherein contain
Nonmetallic materials have outside recoverable value, and it contains the poisonous and harmful elements such as lead, chromium, brominated flame retardant is made to environment
Into pressure also receive increasing attention therewith, it is carried out recycling and it is innoxious recycling be contemporary electronic production
The active demand of product development, and realize the realistic meaning place of human and environment harmonious and sustainable development.
The research in terms of relevant abandoned printed circuit board processing and recovery is also increasingly paid attention to by academia in recent years,
The WPCBs processing methods of comparative maturity mainly have the treatment technologies such as pyrometallurgy, hydrometallurgy and mechanical approach to obtain at present
A certain degree of exploration and application, but processing procedure can cause secondary pollution, and metal and the nonmetallic rate of recovery to environment
It is relatively low with recovery purity, therefore be progressively restricted in actual applications, and Microorganism Leaching, microwave and supercritical fluid
Etc. emerging treatment technology, the experimental study stage is rested on due to being limited by application conditions and implement scale.
Pyrolysis treating method is due to metal and the nonmetallic rate of recovery and recovery purity height, removal process secondary pollution wind
The advantages that danger is small, has a clear superiority in terms of WPCBs recycling, turns into the focus studied in boundary in recent years.According to
Material pyrolysis mode of heating pyrolysis, which can be divided into, directly heats pyrolysis and indirectly heat pyrolysis.It is own partial to directly heat pyrolysis
Directly burning or extraneous supplement fuel combustion is provided.Direct-fired pyrolysis plant is simple in construction, the processing of thermal decomposition material
Amount and factor of created gase are also of a relatively high, but calorific value is not high, and the higher easily generation nitrogen oxides pollution environment of temperature.Indirectly heat side
Formula includes wall heat conduction and intermediate medium heats.Wall conduction is to heat thermal decomposition material with wall type heat-conducting mode, but wall conduction adds
Hot mode easily occurs influenceing heat transfer, corrosion and pyrolysis heating-up temperature there is thermal resistance is big, pyrolysis residue cladding heat transfer wall
The problems such as by a definite limitation.Intermediate medium heating refers in material pyrolytic process using high-temperature gas or solid as heat carrier
Transfer heat to thermal decomposition material.Between gas and pyrolysis material based on the mode of heating of heat convection, gas is as heat carrier
The uniform heated material of energy, in the absence of solid-solid blend and separation problem.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of prior art, there is provided one kind is realized old circuit board processing and returned
The old circuit board fixed-bed pyrolysis system of the high-temperature gas seepage flow heating of the innoxious of receipts, minimizing and recycling.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating of the present utility model, including pyrolysis
Stove, described pyrolysis oven include shaft, and the support of described shaft is arranged on insulating brick, and stove is fixed with the top of described shaft
Lid, described shaft include the pyrolysis oven burner hearth surrounded by inner bag, insulation construction are coated with successively on described inner bladder outer wall
With pyrolysis furnace outer wall, cleaning door is provided with the bottom of described shaft, in described pyrolysis oven burner hearth inner bottom part in the horizontal direction
Multi-hole orifice is installed, control cabinet side thermocouple and auxiliary is respectively arranged with the pyrolysis oven burner hearth of described multi-hole orifice bottom
Heater is helped, described auxiliary heater and control cabinet side thermocouple are connected with auxiliary heater controller, described porous
On shaft above orifice plate between the upper and lower every be provided with multiple mounting holes for leading to pyrolysis oven burner hearth in the horizontal direction, positioned at most upper
Portion is provided with a pyrolysis furnace electric thermo-couple in the mounting hole at bell, and one group is provided with remaining each mounting hole
Furnace electric thermo-couple is pyrolyzed, every group of pyrolysis furnace electric thermo-couple includes three different thermocouples of three length for stretching into pyrolysis oven burner hearth, point
The fire box temperature of sustained height difference radial position Yong Yu not be measured, is used positioned at pyrolysis furnace electric thermo-couple of the topmost at bell
In measurement pyrolysis gas exhaust temperature, remaining pyrolysis furnace electric thermo-couple is used to measure in-furnace temperature distribution, described pyrolysis oven heat
Galvanic couple is connected by control line with data collecting instrument, and the pyrolysis gas connected with pyrolysis oven burner hearth is provided with described bell and is gone out
Tracheae, the outlet of described pyrolysis gas escape pipe is connected with pyrolysis gas condensation collection system, at the bottom of described pyrolysis oven burner hearth
Portion is inserted with high temperature nitrogen air inlet pipe, and the air inlet of described high temperature nitrogen air inlet pipe connects with one end of the pipeline in heater,
The other end of pipeline in heater by the gas transmission pipeline equipped with nitrogen pressure-reducing valve and vortex-shedding meter with from pressurized nitrogen
The gas outlet connection of gas tank.
Compared with prior art, the utility model has the advantages that：The present apparatus is using high-temperature gas as heat carrier
Transfer heat to wiring board particle so that vertical direction thermograde reduces in pyrolysis oven, and pyrolysis temperature distribution is more equal in stove
It is even, pyrolysis efficiency can be improved.Oxygen-free environment is formd simultaneously, the formation of dioxin, furans is suppressed, reduced
Pollution to environment.The waste printed circuit board handled by the system, metal and the nonmetallic rate of recovery and recovery purity are all
Compare high.Gas caused by pyrolysis and product liquid are also used as fuel or industrial chemicals utilizes, and realize waste and old track
The recycling of road plate recycles.
Brief description of the drawings
Fig. 1 is a kind of structure of the old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating of the present utility model
Schematic diagram；
Fig. 2 is the structural representation of the pyrolysis oven in the system shown in the utility model Fig. 1；
Fig. 3 is the structural representation of the pyrolysis gas condensation collection system in the system shown in the utility model Fig. 1.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating of the present utility model as shown in Figure 1
System, including pyrolysis oven 6, described pyrolysis oven 6 include shaft, and the support of described shaft is arranged on insulating brick 22, described
Bell is fixed with the top of shaft, described shaft includes the pyrolysis oven burner hearth 11 surrounded by inner bag, on described inner bladder outer wall
Insulation construction 12 and pyrolysis furnace outer wall 13 are coated with successively, are provided with cleaning door 14 in the bottom of described shaft, are cleared up from pyrolysis
The dust that burner hearth orifice plate falls.Multi-hole orifice 21 is installed in the horizontal direction in the described inner bottom part of pyrolysis oven burner hearth 11, in institute
Control cabinet side thermocouple 17 and auxiliary heater 16 are respectively arranged with the pyrolysis oven burner hearth 11 for the bottom of multi-hole orifice 21 stated, it is auxiliary
Heater 16 and control cabinet side thermocouple 17 is helped to be connected with auxiliary heater controller 8, above described multi-hole orifice 21
On shaft between the upper and lower every be provided with multiple mounting holes for leading to pyrolysis oven burner hearth 11 in the horizontal direction, positioned at topmost close to stove
One pyrolysis furnace electric thermo-couple 18 is installed in the mounting hole at lid, one group of pyrolysis oven is installed in remaining each mounting hole
Thermocouple 18, every group of pyrolysis furnace electric thermo-couple include three different thermocouples of three length for stretching into pyrolysis oven burner hearth, used respectively
In measurement sustained height difference radial position fire box temperature, point position b1, b2, b3, c1, c2, c3, d1, d2, d3, e1,
E2, e3, f1, f2, f3, g1, g2, g3 are as shown in Figure 2.It is used to measure positioned at pyrolysis furnace electric thermo-couple 18 of the topmost at bell
Pyrolysis gas exhaust temperature, point position are arranged at a, and remaining pyrolysis furnace electric thermo-couple 18 is used to measure in-furnace temperature distribution.
Described pyrolysis furnace electric thermo-couple 18 is connected by control line with data collecting instrument 19.It is pyrolyzed furnace electric thermo-couple 18 and data collecting instrument 19
Form data collecting system 9.The pyrolysis gas escape pipe 20 connected with pyrolysis oven burner hearth 11 is provided with described bell, it is described
Outlet and pyrolysis gas the condensation collection system 10 of pyrolysis gas escape pipe 20 be connected.Inserted in the bottom of described pyrolysis oven burner hearth 11
There is high temperature nitrogen air inlet pipe 15, the air inlet of described high temperature nitrogen air inlet pipe 15 connects with one end of the pipeline in heater 5,
The other end of pipeline in heater 5 is by the gas transmission pipeline equipped with nitrogen pressure-reducing valve 2 and vortex-shedding meter 3 with being pressurized certainly
The gas outlet connection of nitrogen pot 1.
Each measuring point temperature is recorded by data collecting instrument automatic data collection, and data are uploaded to the calculating being connected with data collecting instrument
Stored in machine.Nitrogen flow measurement can be achieved to gas instantaneous delivery and integrated flow using band temperature head compensating vortex street effusion meter 3
Metering.
As a kind of embodiment of the present utility model, described insulation construction uses alumina silicate heat-preservation cotton, has good
High temperature resistant and heat-insulating property.
As a kind of embodiment of the present utility model, described pyrolysis gas condensation collection system 10 uses water cooling condensing
Double-tube heat exchanger 24.The outlet of described pyrolysis gas escape pipe 20 is connected with the pyrolysis gas conduit entrance 23 of double-tube heat exchanger 24,
Multiple condensate ports are provided with the bottom of the pyrolysis feed channel of described double-tube heat exchanger 24 and are set at each condensate port
There is a receiving flask, pyrolysis gas pipeline exit is provided with gas collection bag.In the heat at pyrolysis gas pipe outlet 31
Valve 29 and thermometer 30 are installed in solution feed channel.
Pyrolysis gas is entered by the pyrolysis gas conduit entrance 23 of double-tube heat exchanger 24, by the pyrolysis feed channel of double-tube heat exchanger 24
The outflow of outlet 31, condensed water is entered by the condensing water conduit import 26 of double-tube heat exchanger 24, by the condensate pipe of double-tube heat exchanger 24
The outflow of road outlet 27.The pyrolysis oil being condensed out in the pyrolysis feed channel of double-tube heat exchanger 24 is cold from pyrolysis feed channel bottom
Solidifying mouth enters in pyrolysis oil receiving flask 25, and incoagulable gas part is collected in gas collection bag 28 in pyrolysis gas pipeline exit
For chemically examining its composition.
As a kind of embodiment of the present utility model, described heater is connected with pipeline electricity consumption electric energy meter 4, described
Pipeline electricity consumption electric energy meter 4 is connected with power supply by wire, the auxiliary heater 16 and auxiliary oven for preventing gas temperature from losing
Electric energy meter 7 is connected, and described auxiliary oven electric energy meter 7 is connected with power supply by wire.Heater and auxiliary heater consumption
Electricity measured respectively with pipeline electricity consumption electric energy meter 4 and auxiliary oven electric energy meter 7.
The application method of the system is as follows：
Old circuit board particle is loaded into pyrolysis oven burner hearth 11.Heated from the nitrogen in supercharging nitrogen pot 1 by heater 5
Enter wiring board particle bed of material pyrolysis oven system from outlet afterwards.Gas is flowed through after auxiliary heater 16 by being pyrolyzed burner hearth bottom
Multi-hole orifice 21 enters the pyrolysis burner hearth 11 equipped with the wiring board particle bed of material.It is pyrolyzed furnace electric thermo-couple 18 and measures diverse location reality in stove
When temperature change, the pyrolysis furnace electric thermo-couple 18 near bell measures pyrolysis gas exhaust temperature.In pyrolytic process, in wiring board
Organic matter is heated to produce volatile matter, and volatile matter enters condenser 10 after being discharged with thermal current from pyrolysis furnace outlet duct 20.It is cold
Condenser uses telescoping water-cooling condenser, and the pyrolysis oil being condensed out in condenser pyrolysis feed channel enters the receiving flask of bottom
25, incoagulable gas part is collected in gas collection bag 28 in pyrolysis gas pipeline exit to be used to chemically examine its composition.It has been pyrolyzed
Full material, glass fiber sheets and sheet metal can peel off naturally, it is possible to achieve the recovery and utilization of waste and old circuit version.
Claims (4)
1. a kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating, including pyrolysis oven, described pyrolysis oven
Including shaft, the support of described shaft is arranged on insulating brick, and bell, described shaft bag are fixed with the top of described shaft
The pyrolysis oven burner hearth surrounded by inner bag is included, is coated with insulation construction and pyrolysis furnace outer wall successively on described inner bladder outer wall,
The bottom of described shaft is provided with cleaning door, it is characterised in that：Installed in the horizontal direction in described pyrolysis oven burner hearth inner bottom part
There is multi-hole orifice, control cabinet side thermocouple is respectively arranged with the pyrolysis oven burner hearth of described multi-hole orifice bottom and auxiliary adds
Hot device, described auxiliary heater and control cabinet side thermocouple are connected with auxiliary heater controller, in described multi-hole orifice
On the shaft of top between the upper and lower every be provided with multiple mounting holes for leading to pyrolysis oven burner hearth in the horizontal direction, leaned on positioned at topmost
One pyrolysis furnace electric thermo-couple is installed in the mounting hole at nearly bell, one group of pyrolysis is installed in remaining each mounting hole
Furnace electric thermo-couple, every group of pyrolysis furnace electric thermo-couple include three different thermocouples of three length for stretching into pyrolysis oven burner hearth, used respectively
In the fire box temperature of measurement sustained height difference radial position, it is used to survey positioned at pyrolysis furnace electric thermo-couple of the topmost at bell
Pyrolysis gas exhaust temperature is measured, remaining pyrolysis furnace electric thermo-couple is used to measure in-furnace temperature distribution, described pyrolysis furnace electric thermo-couple
It is connected by control line with data collecting instrument, the pyrolysis gas outlet connected with pyrolysis oven burner hearth is provided with described bell
Pipe, the outlet of described pyrolysis gas escape pipe is connected with pyrolysis gas condensation collection system, in the bottom of described pyrolysis oven burner hearth
High temperature nitrogen air inlet pipe is inserted with, the air inlet of described high temperature nitrogen air inlet pipe is connected with one end of the pipeline in heater, added
The other end of pipeline in hot device passes through the gas transmission pipeline equipped with nitrogen pressure-reducing valve and vortex-shedding meter and supercharging nitrogen certainly
The gas outlet connection of tank.
2. the old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating according to claim 1, its feature exist
In：Described pyrolysis gas condensation collection system uses water cooling condensing double-tube heat exchanger, the outlet of described pyrolysis gas escape pipe
It is connected with the pyrolysis gas conduit entrance of double-tube heat exchanger, is provided with the bottom of the pyrolysis feed channel of described double-tube heat exchanger multiple
Condensate port and a receiving flask is provided with each condensate port, pyrolysis gas pipeline exit is provided with gas collection
Bag, valve and thermometer are installed in the pyrolysis feed channel close to pyrolysis gas pipeline exit.
3. the old circuit board fixed-bed pyrolysis system of the high-temperature gas seepage flow heating according to claims 1 or 2, it is special
Sign is：Described heater is connected with pipeline electricity consumption electric energy meter, and described pipeline electricity consumption electric energy meter passes through wire phase with power supply
Even, described auxiliary heater is connected with auxiliary oven electric energy meter, and described auxiliary oven electric energy meter is with power supply by leading
Line is connected.
4. the old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating according to claim 3, its feature exist
In：Described insulation construction uses alumina silicate heat-preservation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720179697.2U CN206689178U (en) | 2017-02-27 | 2017-02-27 | A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720179697.2U CN206689178U (en) | 2017-02-27 | 2017-02-27 | A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating |
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| CN206689178U true CN206689178U (en) | 2017-12-01 |
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| CN201720179697.2U Expired - Fee Related CN206689178U (en) | 2017-02-27 | 2017-02-27 | A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944455A (en) * | 2017-02-27 | 2017-07-14 | 天津大学 | A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating |
| WO2019222878A1 (en) * | 2018-05-21 | 2019-11-28 | Que nanping | Pyrolysis and liquation-based continuous treatment apparatus for waste circuit boards/waste enamelled wires |
-
2017
- 2017-02-27 CN CN201720179697.2U patent/CN206689178U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944455A (en) * | 2017-02-27 | 2017-07-14 | 天津大学 | A kind of old circuit board fixed-bed pyrolysis system of high-temperature gas seepage flow heating |
| WO2019222878A1 (en) * | 2018-05-21 | 2019-11-28 | Que nanping | Pyrolysis and liquation-based continuous treatment apparatus for waste circuit boards/waste enamelled wires |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20180227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |