CN108213061A - A kind of vertical waste printed circuit board moving bed pyrolysis system - Google Patents
A kind of vertical waste printed circuit board moving bed pyrolysis system Download PDFInfo
- Publication number
- CN108213061A CN108213061A CN201810235693.0A CN201810235693A CN108213061A CN 108213061 A CN108213061 A CN 108213061A CN 201810235693 A CN201810235693 A CN 201810235693A CN 108213061 A CN108213061 A CN 108213061A
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- pyrolysis
- discharging device
- shaft
- vibrating shaft
- spiral discharging
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 81
- 239000002699 waste material Substances 0.000 title description 9
- 238000007599 discharging Methods 0.000 claims abstract description 37
- 230000008676 import Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000012265 solid product Substances 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 74
- 239000007789 gas Substances 0.000 claims description 44
- 229910052757 nitrogen Inorganic materials 0.000 claims description 35
- 210000004907 gland Anatomy 0.000 claims description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000002459 sustained effect Effects 0.000 claims description 3
- 210000000038 chest Anatomy 0.000 claims 1
- 238000010079 rubber tapping Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 210000003027 ear inner Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 239000010963 304 stainless steel Substances 0.000 description 1
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010793 electronic waste Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- 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]
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of vertical old circuit board moving bed pyrolysis systems, including being pyrolyzed furnace system, vibrating shaft vertically passes through bell and blind flange and stretches into lower chambers, porous helical blade is installed on the vibrating shaft positioned at lower chambers, the tup up and down motion of Pneumatic knocking hammer can hit the top of vibrating shaft, drive vibration shaft vibration, the forepart of one spiral discharging device is mounted in spiral discharging device installation passage, the outlet of spiral discharging device is connected with discharging reservoir import, it is tilted down in the bottom chamber of vibrating shaft bottom part down and multi-hole orifice is installed towards the import of spiral discharging device installation passage, spiral discharging device import is connect with multi-hole orifice bottom so that the solid product after being pyrolyzed is sent by spiral discharging device into discharging reservoir.High-temperature gas is transferred heat to wiring board particle by the present apparatus so that vertical direction temperature gradient reduces in pyrolysis oven, and pyrolysis temperature distribution is more uniform in stove, can improve pyrolysis efficiency.
Description
Technical field
The present invention relates to a kind of moving bed pyrolysis system, more particularly to a kind of vertical waste printed circuit board moving bed pyrolysis
System belongs to electron wastes resource reclaim and recycling field.
Background technology
Since 20th century, with the raising of people's lives levels of substance and the rapid development of scientific and technological information technology, people couple
The demand of electronics (device) product is continuously increased, and the update speed of electronics (device) product is getting faster, and leads to electronic waste number
Measure more and more, and gradually have become one of most fast rubbish of global growth rate, how efficiently, quickly, environmental protection is located in
Manage the problem of electron wastes largely increased have become a global concern.Wherein, pyrolysis processing technology has high return
Yield and recycling purity, the advantages that secondary pollution is small, in recent years pyrolysis processing recycle the technology of discarded circuit board and receive
The extensive concern and favorable comment of industry.
The key equipment of printed circuit boards scrap by pyrolysis processing is pyrolysis oven, specifically for the pyrolysis oven mesh of printed wiring board
It is preceding to be also rarely reported.Printed wiring board pyrolysis oven is different from other common garbage pyrolysis furnaces, and printed wiring board density is big, completely hot
It is complicated to solve time length, thermal decomposition product, is related to the resource utilizations such as pyrolysis oil, gas product and solid slag, was particularly pyrolyzed
Heat efficiently uses in the continuous operation of journey and pyrolytic process, therefore, a kind of energy-efficient, good seal performance of research and development, company
The pyrolysis system of continuous operation and product separation and recovery is very urgent.
Chinese patent application No. is CN201720179697.2 discloses a kind of " waste and old line of high-temperature gas seepage flow heating
Road plate fixed-bed pyrolysis system " is including pyrolysis oven, and bottom is equipped with multi-hole orifice in the horizontal direction in pyrolysis oven burner hearth, more
Control cabinet side thermocouple and auxiliary heater are respectively arranged in the pyrolysis oven burner hearth of hole orifice plate lower part, above multi-hole orifice
Shaft is provided with multiple mounting holes for leading to pyrolysis oven burner hearth, pyrolysis furnace electric thermo-couple is equipped in each mounting hole, on bell
The pyrolysis gas air outlet pipe connected with pyrolysis oven burner hearth is provided with, outlet and the pyrolysis gas condensation of the pyrolysis gas air outlet pipe are collected
System is connected, and the bottom of pyrolysis oven burner hearth is pressurized nitrogen gas tank with the pipeline in heater and certainly successively by high temperature nitrogen air inlet pipe
Connection.The problem is that the inconvenience that feeds intake into stove, it is impossible to realize the continuous operation of wiring board pyrolytic process.
Invention content
It is an object of the invention to overcome the shortcomings of prior art, a kind of energy-efficient, good seal performance, continuous behaviour are provided
Make the vertical waste printed circuit board moving bed pyrolysis system with product separation and recovery.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of vertical old circuit board moving bed pyrolysis system, including being pyrolyzed furnace system, the pyrolysis furnace system includes
Shaft is fixed with bell in the shaft crown center, burner hearth is provided among the shaft, outside the burner hearth
Insulation construction and pyrolysis furnace outer wall are coated on wall successively, the port of export of high temperature nitrogen air inlet pipe passes through shaft bottom wall to be inserted into cavity of resorption
Indoor bottom setting, the air inlet of the high temperature nitrogen air inlet pipe is connected with one end of the pipeline in nitrogen heater, in institute
Air inlet high temperature break valve is installed, the other end of the pipeline in nitrogen heater is by being equipped with nitrogen in the high temperature nitrogen air inlet pipe stated
The gas transmission pipeline of gas vortex-shedding meter is connected with from the gas outlet of supercharging nitrogen gas tank, heater controller and nitrogen heater
It is connected, for controlling the heating temperature of heater, electric energy meter is connected by conducting wire with power supply, for measuring nitrogen heater consumption
Electricity, fixed there are one blind flange in the horizontal direction in the burner hearth internal upper part, burner hearth to be divided by the blind flange
Upper chamber independent of each other and lower chambers, feeding-passage and exhaust passage vertically pass through bell and blind flange respectively
It is connected with lower chambers, the outlet of the exhaust passage is connected with being equipped with the pyrolysis gas air outlet pipe of thermometer and pressure gauge, institute
The outlet for the pyrolysis gas air outlet pipe stated is connected with pyrolysis gas condensation collection system；
The import of the feeding-passage is connected with installing valvular feed pipe, and a vibrating shaft vertically passes through
Bell and blind flange and stretch into lower chambers, porous helical blade be installed on the vibrating shaft positioned at lower chambers, positioned at
Be connected with compressed spring on the vibrating shaft of upper chamber, compressed spring in the raw when, it is corresponding at the top of compressed spring to shake
It is fixed on the position of moving axis that there are one horizontally disposed fixed plate, compressed spring top and fixed plate stationary phases
Even and bottom is supported on gland, and a supporting rod is respectively fixed on the gland at left and right sides of the compressed spring,
The support bar top is located at below fixed plate, and the vibrating shaft is arranged on the top outside bell and the hammer of Pneumatic knocking hammer
Head is oppositely arranged, and the tup up and down motion of Pneumatic knocking hammer can hit the top of vibrating shaft, drives vibration shaft vibration, described
The bearing of Pneumatic knocking hammer is fixed on bell, and the Pneumatic knocking hammer is connected by hose with air compressor, is being vibrated
Axis is cased with sealed packing sealing with flange hd top face intersection, and the sealed packing is mounted in cuff, and the cuff is consolidated
It is scheduled on blind flange, the gland is sleeved on vibrating shaft by intermediate trepanning and is bolted on the cuff top
Portion, the gland bottom squeeze are close using o types at the roof intersection of the gland and vibrating shaft on sealed packing top surface
Seal seals, and is tilted down in the restoration of lower stack and is provided with spiral discharging device installation passage, the forepart of a spiral discharging device
In spiral discharging device installation passage, the outlet of the spiral discharging device is connected with discharging reservoir import, is vibrating
The bottom chamber of axis bottom part down tilts down and is equipped with multi-hole orifice towards the import of spiral discharging device installation passage, described
Spiral discharging device import connect with multi-hole orifice bottom so that the solid product after being pyrolyzed is given by the spiral discharging device
Into discharging reservoir；One end of five horizontal stainless steel tubes horizontally pass through shaft be inserted into lower chambers setting and it is another
End is arranged on outside shaft, arranged for interval above and below five horizontal stainless steel tubes, wherein positioned at lowest part and close to high temperature nitrogen air inlet
There are one be used to measure high-temperature gas inlet temperature in bottom in burner hearth for installation in a piece horizontal stainless steel tube in the exit of pipe
Temperature thermocouple, in remaining four superposed horizontal stainless steel tubes being separately installed with three stretches into lower chambers and length
Different temperature thermocouples is respectively used to measure the fire box temperature of sustained height difference radial position, for measuring in pyrolysis oven
Temperature Distribution, the temperature thermocouple described in each is connected with data collecting instrument, in four superposed horizontal stainless steels
The shaft outer side of pipe is separately installed with pressure transmitter, and the pressure transmitter passes through control line and data collecting instrument respectively
It is connected, for measuring the distribution of the pressure in pyrolysis oven.
Compared with prior art, the invention has the advantages that：The present apparatus is transmitted high-temperature gas as heat carrier
Heat gives wiring board particle so that vertical direction temperature gradient reduces in pyrolysis oven, and pyrolysis temperature distribution is more uniform in stove, can
Efficiency is pyrolyzed to improve.Oxygen-free environment is formed simultaneously, the formation of dioxin, furans is suppressed, reduces to ring
The pollution in border.The present apparatus uses Pneumatic knocking hammer, and up-down vibration occurs for the related helical blade of percussion vibration axis, makes PCB discarded
Grain material is slowly fallen in burner hearth, realizes being carried out continuously for pyrolytic process.Beche vibrating shaft and the connection for being pyrolyzed furnace body are close
Envelope using packing_seal method, ensure good sealing effect and have under high temperature, high pressure operating mode stronger stability and
Reliability.The waste printed circuit board handled by the system, metal and the nonmetallic rate of recovery and recycling purity are all higher.
It is pyrolyzed the gas generated and product liquid is also used as fuel or industrial chemicals utilizes, realize the money of waste printed circuit board
Sourceization recycles.
Description of the drawings
Fig. 1 is a kind of structure diagram of vertical old circuit board moving bed pyrolysis system of the present invention；
Fig. 2 is the structure diagram of the pyrolysis oven in present invention system shown in FIG. 1；
Fig. 3 is enlarged diagram at the A of present invention structure shown in Fig. 2.
Specific embodiment
The present invention will be described in detail in the following with reference to the drawings and specific embodiments.
A kind of vertical old circuit board moving bed pyrolysis system of the present invention as shown in Figure 1, including being pyrolyzed furnace system 8,
The pyrolysis furnace system 8 includes shaft, is fixed with bell 39 in the shaft crown center, is set among the shaft
It is equipped with burner hearth 23, the burner hearth 23, which may be used 304 stainless steel plates and be welded, to be surrounded, in 23 internal upper part of burner hearth along horizontal
Direction is fixed there are one blind flange 31, and burner hearth 23 is divided into upper chamber independent of each other and lower chambers by the blind flange,
Insulation construction 22 and pyrolysis furnace outer wall 25 are coated on the hearth outer wall successively.Feeding-passage and exhaust passage edge respectively
Vertical direction passes through bell and blind flange to be connected with lower chambers, the outlet of the exhaust passage be equipped with thermometer 29 and
The pyrolysis gas air outlet pipe 9 of pressure gauge 30 connects, and outlet and the pyrolysis gas of the pyrolysis gas air outlet pipe 9 condense collection system phase
Even.
The port of export of high temperature nitrogen air inlet pipe 6 passes through shaft bottom wall to be inserted into the setting of bottom chamber bottom, high temperature nitrogen air inlet
The tool of pipe 6 is there are two acting on, first, as high temperature nitrogen air inlet pipe, second is that as cleaning door 18, because falling in pyrolytic process
Material it is seldom, it is possible to use simultaneously, the outlet of the high temperature nitrogen air inlet pipe 6 is arranged on bottom chamber bottom, described
The air inlet of high temperature nitrogen air inlet pipe 6 connected with one end of the pipeline in nitrogen heater 5.In the high temperature nitrogen air inlet
Air inlet high temperature break valve 7 is installed on pipe 6.The other end of pipeline in nitrogen heater 5 is by being equipped with nitrogen vortex-shedding meter 2
Gas transmission pipeline with from supercharging nitrogen gas tank 1 gas outlet connect.Heater controller 4 is connected with nitrogen heater 5, is used for
Control the heating temperature of heater.Electric energy meter 3 is connected by conducting wire with power supply, for measuring the electricity of the consumption of nitrogen heater 5.
The import of the feeding-passage is connected with installing valvular feed pipe, and a vibrating shaft 26 is vertically worn
It crosses bell and blind flange 31 and stretches into lower chambers, porous helical blade is installed on the vibrating shaft 26 positioned at lower chambers
24, compressed spring 41 is connected on the vibrating shaft positioned at upper chamber, compressed spring in the raw when, compressed spring top
It is fixed on the position of the corresponding vibrating shaft in portion that there are one horizontally disposed fixed plates 42.At the top of the compressed spring with
Fixed plate 42 is fixedly linked and bottom is supported on gland 36, divides on the gland 36 of 41 left and right sides of compressed spring
It Gu Ding not be there are one supporting rod 40, for the distance that vibrating shaft 26 is controlled to move.40 top of supporting rod is located at fixed plate
42 lower sections, the top and the tup of Pneumatic knocking hammer 28 that the vibrating shaft 26 is arranged on outside bell are oppositely arranged, pneumatic to tap
The tup up and down motion of hammer 28 can hit the top of vibrating shaft 26, and vibrating shaft 26 is driven to vibrate.The bearing of Pneumatic knocking hammer 28
It is fixed on bell 39, the Pneumatic knocking hammer 28 is connected by hose with air compressor.In vibrating shaft 26 and blind flange
31 top surfaces intersection are cased with sealed packing 38 and seal, and the sealed packing 38 is mounted in cuff, and the cuff is fixed on
On blind flange 31, the gland 36 is sleeved on vibrating shaft 26 by intermediate trepanning and the hoop is fixed on by bolt 37
Set top, the gland bottom squeeze are adopted on sealed packing top surface at the gland and the roof intersection of vibrating shaft 26
It is sealed with o types sealing ring 35.
It is tilted down in the restoration of lower stack and is provided with spiral discharging device installation passage, the forepart peace of a spiral discharging device
In spiral discharging device installation passage, the outlet of the spiral discharging device is connected with discharging 19 import of reservoir, is vibrating
The bottom chamber of 26 bottom part down of axis tilts down and is equipped with multi-hole orifice 21 towards the import of spiral discharging device installation passage,
The spiral discharging device import is connect with 21 bottom of multi-hole orifice so that the solid product after being pyrolyzed is gone out by the spiral
Glassware 20 is sent into discharging reservoir 19.
Using packing_seal mode, when bolt 37 so that gland 36 is pressed down against packing 38, packing 38 and vibrating shaft 26
Between there are extruding force and many small gaps, form countless labyrinths, the gas leaked out is repeatedly hindered in labyrinth
It is disconnected, final leakage can not be realized, so as to play sealing function.The o types sealing ring 35 is in order to ensure that beche shakes
Moving axis 26 and the sealing effect for being pyrolyzed furnace body are more preferable.
To ensure that old circuit board particle is smoothly fallen to from the feed inlet 27 of the feeding-passage in burner hearth 23, use
Up-down vibration occurs for 28 percussion vibration axis of Pneumatic knocking hammer, 26 related porous helical blade 24, delays discarded circuit board granule materials
Slowly it falls in burner hearth 23.Solid product after pyrolysis is sent by the spiral discharging device 20 to discharging through multi-hole orifice 21 to be stored
In device 19.The bottom of shaft high temperature nitrogen air inlet pipe 6 outlet as cleaning door 18, clear up and fall from pyrolysis oven bore plate
Dust.
One end of five horizontal stainless steel tubes horizontally passes through shaft and is inserted into lower chambers setting and other end setting
Outside shaft, arranged for interval above and below five horizontal stainless steel tubes, wherein going out positioned at lowest part and close to high temperature nitrogen air inlet pipe 6
There are one the thermometric heat for being used to measure high-temperature gas inlet temperature in bottom in burner hearth for installation in a horizontal stainless steel tube at mouthful
Galvanic couple 33, as shown in the measuring point E1 points in figure.Three are separately installed in remaining four superposed horizontal stainless steel tubes
It is a to stretch into lower chambers and the different temperature thermocouple 33 of length, it is respectively used to measure the burner hearth temperature of sustained height difference radial position
Degree, for measuring the Temperature Distribution in pyrolysis oven, point position A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, D3, such as
Shown in Fig. 2.Temperature thermocouple 33 described in each is connected with data collecting instrument 34, in four superposed horizontal stainless steels
The shaft outer side of pipe is separately installed with pressure transmitter 32, and the pressure transmitter 32 is adopted respectively by control line and data
Collect instrument 34 to be connected, for measuring the distribution of the pressure in pyrolysis oven.
The pyrolysis gas condensation collection system includes import and the double-tube heat exchanger of the outlet of pyrolysis gas air outlet pipe 9
Condenser 12, pyrolysis gas is entered by the pyrolysis gas import of double-tube heat exchanger condenser 12, by the heat of double-tube heat exchanger condenser 12
The pyrolysis gas outlet 14 of solution feed channel flows out, and condensed water is entered by the 12 condensing water conduit import 11 of double-tube heat exchanger condenser, by
13 outflow of condensing water conduit outlet of double-tube heat exchanger condenser 12.Pacify in the pyrolysis feed channel at pyrolysis gas outlet 14
Equipped with thermometer after condensation 15, vortex-shedding meter 16 and pyrolysis gas collecting bag 17.In the double-tube heat exchanger condenser
The lower part of pipeline be provided with multiple condensate ports, the pyrolysis oil that pyrolysis gas condenses is from the condensate port of double-tube heat exchanger condenser 12
Into in pyrolysis oil receiving flask 10, incoagulable gas part is collected in gas collection bag 17 in pyrolysis gas pipeline exit and is used for
Chemically examine its ingredient.
The application method of this system is as follows：
Old circuit board particle is entered into pyrolysis oven burner hearth 23 from feed inlet 27, opens Pneumatic knocking hammer 28 to vibrating shaft 26
Tap and make its vibration, smoothly fall and be filled in burner hearth along helical blade convenient for wiring board particle, until filling up entire heat
Solve stove.Wiring board particle closes feed inlet valve after loading, and is passed through nitrogen and purges and carry out leak check, and checks and set
Whether standby each component and instrument and meter etc. are normal.Nitrogen heater 5 and condenser system inlet valve are then turned on, adjusts nitrogen
Flow is to required flow and keeps stablizing output.High-temperature gas is entered by being pyrolyzed the multi-hole orifice 21 of burner hearth bottom equipped with line
The pyrolysis burner hearth 23 of the road plate particle bed of material.It is real-time that pyrolysis oven temperature thermo-coupler 33 and pressure transmitter 32 measure different location in stove
Temperature and pressure change.In pyrolytic process, the organic matter in wiring board, which is heated, can generate volatile matter, volatile matter with thermal current from
It is pyrolyzed after furnace outlet duct 9 is discharged and enters double-tube heat exchanger condenser 12.The pyrolysis oil being condensed out within the condenser enters lower part
Receiving flask 10, incoagulable gas part are collected in pyrolysis gas pipeline exit in gas collection bag 17 to chemically examine its ingredient.
After natural cooling inside pyrolysis burner hearth, pyrolysis solid residue is taken out out of discharging reservoir 19 and realizes returning for solid product
It receives.
Claims (2)
1. a kind of vertical old circuit board moving bed pyrolysis system, including being pyrolyzed furnace system, the pyrolysis furnace system includes stove
Body is fixed with bell in the shaft crown center, burner hearth is provided among the shaft, in the hearth outer wall
On be coated with insulation construction and pyrolysis furnace outer wall successively, the port of export of high temperature nitrogen air inlet pipe passes through shaft bottom wall to be inserted into lower chambers
Interior bottom setting, the air inlet of the high temperature nitrogen air inlet pipe is connected with one end of the pipeline in nitrogen heater, described
High temperature nitrogen air inlet pipe on air inlet high temperature break valve is installed, the other end of the pipeline in nitrogen heater is by being equipped with nitrogen
The gas transmission pipeline of vortex-shedding meter is connected with from the gas outlet of supercharging nitrogen gas tank, heater controller and nitrogen heater phase
Even, for controlling the heating temperature of heater, electric energy meter is connected by conducting wire with power supply, for measuring nitrogen heater consumption
Electricity, it is characterised in that：Fixed there are one blind flange in the horizontal direction in the burner hearth internal upper part, the blind flange is by stove
Thorax is divided into upper chamber independent of each other and lower chambers, feeding-passage and exhaust passage vertically pass through respectively bell with
And blind flange is connected with lower chambers, the outlet of the exhaust passage and the pyrolysis gas air outlet pipe for being equipped with thermometer and pressure gauge
Connection, the outlet of the pyrolysis gas air outlet pipe are connected with pyrolysis gas condensation collection system；
The import of the feeding-passage is connected with installing valvular feed pipe, and a vibrating shaft vertically passes through bell
And blind flange and lower chambers are stretched into, porous helical blade is installed on the vibrating shaft positioned at lower chambers, positioned at epicoele
Be connected with compressed spring on the vibrating shaft of room, compressed spring in the raw when, corresponding vibrating shaft at the top of compressed spring
Position on it is fixed there are one horizontally disposed fixed plate, to be fixedly linked simultaneously with fixed plate at the top of the compressed spring
And bottom is supported on gland, and a supporting rod is respectively fixed on the gland at left and right sides of the compressed spring, it is described
Support bar top be located at below fixed plate, the vibrating shaft is arranged on the top outside bell and the tup phase of Pneumatic knocking hammer
To setting, the tup up and down motion of Pneumatic knocking hammer can hit the top of vibrating shaft, drive vibration shaft vibration, described is pneumatic
The bearing for tapping hammer is fixed on bell, and the Pneumatic knocking hammer is connected by hose with air compressor, in vibrating shaft and
Flange hd top face intersection is cased with sealed packing sealing, and the sealed packing is mounted in cuff, and the cuff is fixed on
On blind flange, the gland is sleeved on vibrating shaft by intermediate trepanning and is bolted at the top of the cuff,
The gland bottom squeeze is sealed on sealed packing top surface at the roof intersection of the gland and vibrating shaft using o types
Circle sealing, tilts down in the restoration of lower stack and is provided with spiral discharging device installation passage, the forepart peace of a spiral discharging device
In spiral discharging device installation passage, the outlet of the spiral discharging device is connected with discharging reservoir import, in vibrating shaft
The bottom chamber of bottom part down tilts down and is equipped with multi-hole orifice towards the import of spiral discharging device installation passage, described
Spiral discharging device import connect with multi-hole orifice bottom so that solid product after being pyrolyzed by the spiral discharging device send to
In discharging reservoir；One end of five horizontal stainless steel tubes horizontally passes through shaft and is inserted into lower chambers setting and the other end
It is arranged on outside shaft, arranged for interval above and below five horizontal stainless steel tubes, wherein positioned at lowest part and close to high temperature nitrogen air inlet pipe
Exit a horizontal stainless steel tube in installation there are one for measuring the survey of high-temperature gas inlet temperature in bottom in burner hearth
Warm galvanic couple, be separately installed in remaining four superposed horizontal stainless steel tubes three stretch into lower chambers and length not
Same temperature thermocouple is respectively used to measure the fire box temperature of sustained height difference radial position, for measuring in pyrolysis oven
Temperature Distribution, the temperature thermocouple described in each are connected with data collecting instrument, in four superposed horizontal stainless steel tubes
Shaft outer side be separately installed with pressure transmitter, the pressure transmitter passes through control line and data collecting instrument phase respectively
Even, it is distributed for measuring the pressure in pyrolysis oven.
2. vertical old circuit board moving bed pyrolysis system according to claim 1, it is characterised in that：The pyrolysis gas
It condenses collection system and includes import and the double-tube heat exchanger condenser of the outlet of pyrolysis gas air outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235693.0A CN108213061A (en) | 2018-03-21 | 2018-03-21 | A kind of vertical waste printed circuit board moving bed pyrolysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235693.0A CN108213061A (en) | 2018-03-21 | 2018-03-21 | A kind of vertical waste printed circuit board moving bed pyrolysis system |
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| CN108213061A true CN108213061A (en) | 2018-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810235693.0A Pending CN108213061A (en) | 2018-03-21 | 2018-03-21 | A kind of vertical waste printed circuit board moving bed pyrolysis system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2584557A1 (en) * | 2007-04-04 | 2008-10-04 | Afab Financial Ltd. | Improved pyrolysis system for waste rubber |
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